A PCB board pressing device and a pressing method

Abstract

The present invention discloses a PCB board pressing device and a pressing method, which includes a workbench, a positioning module arranged on the workbench, a pressing mechanism located above the positioning module, and a partition board that divides the workbench into a pressing area and a human-machine interaction area, and the positioning module is located within the pressing area; a surrounding vertical board is arranged on the workbench; the positioning module includes a pair of parallel installation sliding plates and a pair of positioning columns that slide left and right on the installation sliding plates; both ends of the installation sliding plates extend into the surrounding vertical board and the partition board, a first chute for restricting the position of one end of the installation sliding plate and allowing it to slide therein is arranged on the surrounding vertical board, and a second chute for restricting the position of the other end of the installation sliding plate and allowing it to slide therein is arranged on the partition board. The present invention can accurately position PCB boards of various different specifications and sizes, monitor the pressing process of the PCB boards and electronic components, reduce the device damage rate, and ensure the reliability of the pressing process.

Description

Technical Field

[0001] The present invention belongs to the technical field of crimping of electronic components, and particularly relates to a PCB board crimping device and a crimping method.

Background Art

[0002] A PCB board, that is, a printed circuit board, also known as a printed wiring board, is a provider for electrical connection of electronic components. The design of a printed circuit board is mainly layout design. The main advantage of using a circuit board is to greatly reduce wiring and assembly errors, and improve the automation level and production labor rate. PCB board crimping is a connection technology without soldering, and is a connection formed by the cooperation of pins and metallized holes of the PCB. Compared with soldering technology, the advantages of crimping connection are mainly that no thermal stress is generated on the PCB board, and no defects such as false soldering and short circuit occur.

[0003] In the prior art, the invention patent with the publication number of CN208423430U discloses a crimping machine structure for a PCB connector. Although it can realize the crimping of the PCB board connector, it does not elaborate on how to position the PCB on the bottom plate and how to adjust it when the size of the PCB board changes.

[0004] In the prior art, the invention patent with the publication number of CN216532000U discloses a PCB board crimping die, which uses multiple horizontally rotatable support rods and sets positioning columns on the support rods to position the PCB board through multiple positioning columns, and can adjust the position of the positioning columns by rotating the horizontal angle of the support rods to be applicable to the positioning of PCB boards of various different specifications and sizes. However, during the crimping process of this die, it is not known whether the positioning of the PCB board and the connector is aligned, and its crimping process is unreliable, easily causing damage to the PCB board and the connector due to misalignment of the insertion holes of the PCB board and the pins of the connector.

[0005] Therefore, it is necessary to provide a new PCB board crimping device and a crimping method to solve the above problems.

Summary of the Invention

[0006] The main object of the present invention is to provide a PCB board crimping device, which can accurately position PCB boards of various different specifications and sizes, monitor the crimping process of the PCB board and electronic components, reduce the device damage rate, and ensure the reliability of the crimping process.

[0007] The present invention achieves the above object through the following technical solutions: A PCB board pressing device, which includes a workbench, a positioning module disposed on the workbench, and a pressing mechanism located above the positioning module. It further includes a partition board that divides the workbench into a pressing area and a human-machine interaction operation area, and the positioning module is located within the pressing area; a surrounding vertical board is provided on the workbench; the positioning module includes a pair of installation sliding plates arranged parallel to each other in the front and back directions and at least a pair of positioning columns slidably arranged on the installation sliding plates in the left and right directions; both ends of the installation sliding plates extend into the surrounding vertical board and the partition board respectively. A first sliding groove that restricts the position of one end of the installation sliding plate and allows it to slide back and forth therein is provided on the surrounding vertical board, and a second sliding groove that restricts the position of the other end of the installation sliding plate and allows it to slide back and forth therein is provided on the partition board.

[0008] Further, an operation screen is provided in the human-machine interaction operation area; the surrounding vertical board encloses the pressing area and the human-machine interaction operation area.

[0009] Further, a third sliding groove is provided on the installation sliding plate along the length direction, and the positioning columns are movably arranged on the third sliding groove.

[0010] Further, the second sliding groove is an L-shaped through groove structure. An operation board is provided at one end of the installation sliding plate extending into the second sliding groove; the operation board includes a connecting section restricted within the vertical section of the second sliding groove and a dial block connected to the upper end of the connecting section and resting on the surface of the partition board.

[0011] Further, the installation sliding plate is locked and fixed on the partition board through an elastic locking component;

[0012] A fourth sliding groove communicating with the second sliding groove is provided on the right side surface of the partition board, and the fourth sliding groove is arranged in the front and back direction; a pair of L-shaped limiting baffles are also provided on the right side surface of the partition board. The two L-shaped limiting baffles are arranged oppositely and jointly enclose a sliding track, and a gap is left between the two L-shaped limiting baffles to form an opening of the sliding track;

[0013] The elastic locking component includes an elastic ejector rod, a first annular stop fixed on the elastic ejector rod and close to its end, a second annular stop located within the sliding track, and a second elastic member sleeved on the elastic ejector rod. One end of the second elastic member abuts against the first annular stop, and the other end abuts against the second annular stop. The elastic ejector rod passes through the second annular stop;

[0014] The elastic ejector rod is inserted from the opening of the sliding track and sequentially passes through the sliding track, the fourth sliding groove and extends into the second sliding groove, and its end abuts against the surface of the connecting section;

[0015] An arc-shaped groove is provided on the surface of the connecting section, and the end of the elastic ejector rod is of an arc surface structure and extends into the arc-shaped groove.

[0016] Furthermore, the crimping mechanism includes a mounting plate fixed on the enclosure vertical plate, a driving member fixed on the mounting plate, and a crimping head driven by the driving member to move up and down.

[0017] Furthermore, the crimping head is arranged on a floating module; the floating module includes a first support plate arranged at the movable end of the driving member, a second support plate elastically floating up and down on the first support plate, and a horizontal floating plate horizontally and 360° adaptively floating on the second support plate, and the crimping head is arranged on the horizontal floating plate.

[0018] Furthermore, the second support plate is hung below the first support plate through a plurality of elastic members, at least a pair of first guide rods are fixedly arranged on the second support plate, and first guide holes for the first guide rods to pass through and guide them are arranged on the first support plate.

[0019] Furthermore, the horizontal floating plate is hung on the second support plate through at least two pairs of second guide rods, and a floating limit hole with a diameter larger than that of the second guide rods is arranged on the horizontal floating plate; a plurality of support balls for maintaining a set height distance between the two are arranged between the horizontal floating plate and the second support plate.

[0020] Furthermore, a placement groove is arranged at the bottom of the crimping head, and a camera for photographing the insertion positions of electronic components on the PCB board and photographing the positions of the electronic components after crimping is arranged in the placement groove, and a protective lens for protecting the camera is also arranged at the opening of the placement groove.

[0021] Another object of the present invention is a PCB board crimping method, which includes placing the PCB board on the installation slide plate and accurately positioning the position of the PCB board through four positioning columns at the same time; starting the crimping device, using the camera to photograph the insertion positions on the PCB board to ensure that the position of the PCB board is placed correctly; then placing the electronic components to be inserted into the PCB board at the corresponding insertion positions on the PCB board; the camera photographs the positions of the electronic components again and judges whether the positions of the electronic components are placed correctly. If correct, the crimping head descends, and the electronic components are pressed onto the PCB board by a combination of up and down floating and horizontal floating; after the pressing is completed, the camera photographs the positions of the electronic components after crimping again to detect whether the pressing positions of the electronic components are correct.

[0022] Compared with the prior art, the beneficial effects of a PCB board pressing device and a pressing method of the present invention are as follows: Through the sliding design of the installation slide plate and the sliding design structure of the positioning posts on the installation slide plate, the positioning dimensions composed of multiple positioning posts can be flexibly adjusted in terms of length and width, thereby meeting the positioning requirements of PCB boards of various different specifications; Through the structural design of the operation board at one end of the installation slide plate and in combination with the elastic locking component, the position adjustment and fixation of the positioning module are realized, improving the convenience and efficiency of the position adjustment of the positioning module and saving the adjustment time; A camera is set on the pressing head to monitor the pressing process of electronic components and the PCB board throughout the process, greatly improving the safety and reliability of the pressing process and reducing the product damage rate; The pressing head is arranged on a floating module, combined with the multi-dimensional floating function, improving the tolerance rate of the insertion before the pressing of electronic components and the PCB board, reducing the product damage risk, improving the product quality, and reducing the production cost.

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;

[0024] Figure 2 is Figure 1 a partial enlarged structural diagram at position A in

[0025] Figure 3 It is a schematic cross-sectional structural diagram on the workbench surface in an embodiment of the present invention;

[0026] Figure 4 It is a schematic structural diagram of the working principle of the elastic locking component in an embodiment of the present invention;

[0027] Figure 5 It is a schematic structural diagram of the floating module and the pressing head in an embodiment of the present invention;

[0028] Figure 6 is Figure 3 a partial enlarged structural diagram at position C in

[0029] The numbers in the figure represent:

[0030] 100 PCB board pressing device;

[0031] 1 - workbench, 11 - enclosing vertical plate, 12 - first chute;

[0032] 2 - partition board, 21 - second chute, 22 - fourth chute, 23 - L-shaped limit baffle, 24 - slideway, 25 - slideway opening;

[0033] 3 - positioning module, 31 - installation slide plate, 311 - third chute, 32 - positioning post, 33 - operation board, 331 - connecting section, 332 - dial block, 333 - anti-slip strip;

[0034] 4 - Operating screen;

[0035] 5 - Crimping mechanism, 51 - Mounting plate, 52 - Driving member, 53 - Crimping head, 531 - Placing groove, 54 - Floating module, 541 - First support plate, 542 - Second support plate, 543 - Horizontal floating plate, 544 - Elastic member, 545 - First guide rod, 546 - Second guide rod, 547 - Floating limit hole, 548 - Support ball, 55 - Camera, 56 - Protective lens;

[0036] 6 - Elastic locking assembly, 61 - Elastic ejector rod, 62 - First annular retaining piece, 63 - Second annular retaining piece, 64 - Second elastic member, 65 - Manual pulling part.

Specific implementation manner

[0037] Example 1:

[0038] Please refer to Figures 1-6 , this embodiment is a PCB board crimping device 100, which includes a workbench 1, a partition plate 2 that divides the workbench 1 into a crimping area and a human - machine interaction operation area, a positioning module 3 arranged on the workbench 1 and located at the position of the crimping area, an operating screen 4 arranged in the human - machine interaction operation area, and a crimping mechanism 5 located above the positioning module 3.

[0039] A retaining vertical plate 11 is arranged on the workbench 1. The retaining vertical plate 11 encloses the crimping area and the human - machine interaction operation area, playing a certain role in protecting and isolating, and trying to avoid waste slag splashing during operation.

[0040] The positioning module 3 includes a pair of installation sliding plates 31 arranged parallel to each other front and back, at least a pair of positioning columns 32 slidably arranged left and right on the installation sliding plates 31, and a locking member (not marked in the figure) that locks the positioning columns 32 on the installation sliding plates 31. The left and right ends of the installation sliding plates 31 extend into the retaining vertical plate 11 and the partition plate 2. A first chute 12 for restricting the position of one end of the installation sliding plate 31 and allowing it to slide back and forth inside is recessed on the inner side wall of the retaining vertical plate 11, and a second chute 21 for restricting the position of the other end of the installation sliding plate 31 and allowing it to slide back and forth inside is arranged on the partition plate 2. Through the setting of the first chute 12 and the second chute 21, the distance between the two installation sliding plates 31 can be adjusted flexibly. A third chute 311 is arranged along the length direction (left - right direction) on the installation sliding plates 31, and the positioning columns 32 are movably arranged left and right on the third chute 311 and then locked and fixed by the locking member; by moving the positioning columns 32 along the direction of the third chute 311, the distance between the two positioning columns 32 on the installation sliding plates 31 can be adjusted, and thus the positioning and support requirements of PCB boards of various different specifications and sizes can be met.

[0041] In this embodiment, the second slide groove 21 is an L-shaped through groove structure, and an operating panel 33 is provided on one end of the mounting slide plate 31 extending into the second slide groove 21. The operating panel 33 includes a connecting section 331 limited in the vertical section of the second slide groove 21, and a shifting block 332 extending upward from the top of the second slide groove 21 and mounted on the surface of the partition plate 2. An anti-slip strip 333 is provided on the surface of the shifting block 332 to increase the friction between the shifting block 332 and the fingers when the operator moves the shifting block 332. When adjusting the position of the mounting slide plate 31, the shifting block 332 can be directly pushed.

[0042] The mounting slide plate 31 is locked and fixed on the partition plate 2 by means of the elastic locking assembly 6 .

[0043] A fourth slide groove 22 connected to the second slide groove 21 is provided on the right side surface of the partition plate 2, and the fourth slide groove 22 is arranged in the front-to-back direction. A pair of L-shaped limit baffles 23 are also provided on the right side surface of the partition plate 2, and the two L-shaped limit baffles 23 are arranged opposite to each other and jointly enclose to form a slideway 24, and a gap is left between the two L-shaped limit baffles 23 to form a slideway opening 25. The elastic locking assembly 6 includes an elastic push rod 61, a first annular baffle 62 fixed on the elastic push rod 61 and close to its end, a second annular baffle 63 located in the slideway 24, and a second elastic member 64 sleeved on the elastic push rod 61, one end of the second elastic member 64 supports the first annular baffle 62, and the other end supports the second annular baffle 63, and the elastic push rod 61 passes through the second annular baffle 63; the elastic push rod 61 is inserted from the slideway opening 25, passes through the slideway 24, the fourth slide groove 22 in sequence, and extends into the second slide groove 21, and its end supports the surface of the connecting section 331. An arc-shaped groove (not shown) is provided on the surface of the connecting section 331, and the end of the elastic push rod 61 is an arc surface structure and extends into the arc-shaped groove, so as to prevent the elastic push rod 61 from slipping and deflecting during the holding and achieve the holding and fixing effect.

[0044] The outer end of the elastic push rod 61 is also provided with a manual holding portion 65 .

[0045] When it is necessary to adjust the position of the mounting slide 31, hold the manual holding portion 65 and pull it axially outward along the elastic push rod 61 to cancel the holding and fixing constraint force on the mounting slide 31, and then manually move the shift block 332 to move the mounting slide 31 to the desired position. At the same time, synchronously move the elastic locking assembly 6, and then release the manual holding portion 65. Under the elastic force of the second elastic member 64, the elastic push rod 61 is pushed axially inward to restore to the holding position, and the mounting slide 31 is held and fixed on the partition plate 2, so that the position of the mounting slide 31 after adjustment is stable. There is no need to lock screws and other locking parts before and after the position adjustment as in the prior art, thereby improving the convenience and efficiency of the position adjustment.

[0046] The crimping mechanism 5 includes a horizontal mounting plate 51 fixed to the enclosure vertical plate 11, a driving member 52 fixed to the mounting plate 51, and a crimping head 53 driven by the driving member 52 to move up and down. To prevent hard collisions between the electronic components and the PCB board during crimping, the crimping head 53 is arranged on a floating module 54. The floating module 54 includes a first support plate 541 arranged at the movable end of the driving member 52, a second support plate 542 elastically floating up and down on the first support plate 541, and a horizontal floating plate 543 horizontally and 360° adaptively floatingly arranged on the second support plate 542. The crimping head 53 is arranged on the horizontal floating plate 543.

[0047] The second support plate 542 is hung below the first support plate 541 by a plurality of first elastic members 544. At least a pair of first guide rods 545 are fixedly arranged on the second support plate 542, and a first guide hole (not marked in the figure) for the first guide rod 545 to pass through and guide it is arranged on the first support plate 541. The horizontal floating plate 543 is hung on the second support plate 542 by at least two pairs of second guide rods 546. A floating limit hole 547 with a diameter larger than that of the second guide rod 546 is arranged on the horizontal floating plate 543. The gap between the floating limit hole 547 and the second guide rod 546 is the radius of the horizontal floating range of the horizontal floating plate 543. A plurality of support balls 548 for maintaining a set height spacing between the two are arranged between the horizontal floating plate 543 and the second support plate 542. Under the elastic force of the first elastic member 544, the second support plate 542 can float up and down relative to the first support plate 541, effectively avoiding hard collisions or misalignment during insertion between the electronic components and the circuit board and damage. Through the cooperation of the floating limit hole 547 on the horizontal floating plate 543 and the second guide rod 546, the horizontal floating plate 543 can be finely adjusted horizontally relative to the second support plate 542. Under the guidance of the insertion pins and sockets, the electronic components can be accurately and adaptively pressed into the sockets of the PCB board, effectively avoiding the occurrence of product damage.

[0048] To further ensure the controllability and reliability of the crimping process, in this embodiment, a placement groove 531 is arranged at the bottom of the crimping head 53. A camera 55 for photographing the insertion position of the electronic components on the PCB board and the position of the electronic components after crimping is arranged in the placement groove 531. A protective lens 56 for protecting the camera 55 is also arranged at the opening of the placement groove 531 to prevent dust from entering the placement groove 531 and damaging the camera 55.

[0049] The present embodiment also provides a PCB board crimping method, which includes: according to the size of the PCB board, toggle the dial block 332 to adjust the distance between the two installation slides 31, then adjust the positioning column 32 on each installation slide 31, and then lock the positioning column 32, at this time, the positions of the four positioning columns 32 just correspond to the positions of the positioning holes on the PCB board; place the PCB board on the installation slide 31 and accurately position the position of the PCB board through the four positioning columns 32 at the same time; start the crimping device, first the camera 55 takes a picture of the plug-in position on the PCB board to ensure that the position of the PCB board is correctly placed; then put the electronic components to be plugged into the PCB board into the corresponding plug-in position on the PCB board; the camera 55 takes a picture of the position of the electronic components again, and determines whether the position of the electronic components is correctly placed. If it is correct, the driving member 52 starts to drive the crimping head 53 to descend, and the electronic components are accurately, safely and reliably pressed onto the PCB board by combining up and down floating with horizontal floating; after the pressing is completed, the camera 55 is used to take a picture of the position of the crimped electronic components to detect whether the pressing position of the electronic components is correct.

[0050] The present embodiment provides a PCB board crimping device and crimping method. Through the sliding design of the installation slide and the sliding design structure of the positioning column on the installation slide, the positioning dimensions composed of multiple positioning columns can be flexibly adjusted in length and width, thereby meeting the positioning requirements of PCB boards of various specifications and sizes; through the structural design of the operation panel at one end of the installation slide, combined with the elastic locking component, the position adjustment and fixation of the positioning module is realized, the convenience and efficiency of the position adjustment of the positioning module are improved, and the adjustment time is saved; a camera is set on the crimping head to monitor the crimping process of electronic components and PCB boards throughout the whole process, which greatly improves the safety and reliability of the crimping process and reduces the product damage rate; the crimping head is set on a floating module, combined with a multi-dimensional floating function, which improves the fault tolerance of the electronic components and PCB boards before crimping, reduces the risk of product damage, improves product quality, and reduces production costs.

[0051] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A PCB board crimping device, which comprises a workbench, a positioning module arranged on the workbench, and a crimping mechanism located above the positioning module. It is characterized in that: It further includes a partition board that divides the workbench into a crimping area and a human-machine interaction operation area. The positioning module is located within the crimping area; a surrounding vertical board is arranged on the workbench; the positioning module includes a pair of installation sliding plates arranged parallel to each other in the front and back directions and at least a pair of positioning posts slidably arranged left and right on the installation sliding plates; both ends of the installation sliding plates respectively extend into the surrounding vertical board and the partition board. A first chute that restricts the position of one end of the installation sliding plate and allows it to slide back and forth therein is arranged on the surrounding vertical board, and a second chute that restricts the position of the other end of the installation sliding plate and allows it to slide back and forth therein is arranged on the partition board; the second chute is an L-shaped through chute structure, and a manual operation board is arranged at one end of the installation sliding plate that extends into the second chute; the operation board includes a connecting section restricted within the vertical section of the second chute, and a dial block connected to the upper end of the connecting section and placed on the surface of the partition board; the installation sliding plate is locked and fixed on the partition board through an elastic locking component. A fourth chute communicating with the second chute is opened on the right surface of the partition board, and the fourth chute is arranged along the front and back directions; a pair of L-shaped limiting baffles are further arranged on the right surface of the partition board. The two L-shaped limiting baffles are arranged oppositely and jointly enclose a slideway, and a gap is left between the two L-shaped limiting baffles to form a slideway opening. The elastic locking component includes an elastic ejector rod, a first annular stop fixed on the elastic ejector rod and close to its end, a second annular stop located within the slideway, and a second elastic member sleeved on the elastic ejector rod. One end of the second elastic member abuts against the first annular stop, and the other end abuts against the second annular stop. The elastic ejector rod passes through the second annular stop. The elastic ejector rod is inserted from the slideway opening and sequentially passes through the slideway, the fourth chute and extends into the second chute, and its end abuts against the surface of the connecting section. An arc-shaped groove is arranged on the surface of the connecting section, and the end of the elastic ejector rod is of an arc-shaped structure and extends into the arc-shaped groove.

2. The PCB board crimping device according to claim 1, It is characterized in that: An operation screen is arranged within the human-machine interaction operation area; the surrounding vertical board encloses the crimping area and the human-machine interaction operation area.

3. The PCB board crimping device according to claim 1, It is characterized in that: A third chute is arranged on the installation sliding plate along the length direction, and the positioning posts are movably arranged left and right on the third chute.

4. The PCB board crimping device according to any one of claims 1 to 3, It is characterized in that: The crimping mechanism includes a mounting plate fixed on the surrounding vertical board, a driving member fixed on the mounting plate, and a crimping head driven by the driving member to move up and down.

5. The PCB board crimping device according to claim 4, It is characterized in that: The crimping head is arranged on a floating module; the floating module includes a first support plate arranged at the movable end of the driving member, a second support plate elastically floating up and down on the first support plate, and a horizontal floating plate horizontally and adaptively floating 360° on the second support plate, and the crimping head is arranged on the horizontal floating plate.

6. The PCB board crimping device according to claim 5, characterized in that: The second support plate is hung below the first support plate through a plurality of elastic members. At least a pair of first guide rods are fixedly arranged on the second support plate, and first guide holes for the first guide rods to pass through and guide them are arranged on the first support plate; the horizontal floating plate is hung on the second support plate through at least two pairs of second guide rods, and floating limit holes with a diameter larger than that of the second guide rods are arranged on the horizontal floating plate; a plurality of support balls for maintaining a set height distance between the two are arranged between the horizontal floating plate and the second support plate.

7. The PCB board crimping device according to claim 5, characterized in that: A placement groove is arranged at the bottom of the crimping head. A camera for photographing the insertion positions of electronic components on the PCB board and the positions of the electronic components after crimping is arranged in the placement groove, and a protective lens for protecting the camera is also arranged at the opening of the placement groove.

8. A PCB board crimping method based on the crimping device according to claim 7, characterized in that: It includes placing the PCB board on the installation slide plate and accurately positioning the position of the PCB board through a plurality of positioning posts at the same time; starting the crimping device, using the camera to photograph the insertion positions on the PCB board to ensure that the PCB board is placed correctly; then placing the electronic components to be inserted into the PCB board at the corresponding insertion positions on the PCB board; the camera photographs the positions of the electronic components again and judges whether the positions of the electronic components are placed correctly. If correct, the crimping head descends, and the electronic components are pressed onto the PCB board by a combination of up and down floating and horizontal floating; after the pressing is completed, the camera is used to photograph the positions of the electronic components after crimping to detect whether the pressing positions of the electronic components are correct.

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