PCB auxiliary material mounting head structure

Abstract

The utility model provides a PCB (Printed Circuit Board) auxiliary material mounting head structure, which comprises a support connecting rod, a lifting mechanism arranged at one end of the support connecting rod and used for driving the support connecting rod to move up and down, and a suction nozzle assembly arranged at the other end of the support connecting rod, and a rotating mechanism used for driving the support connecting rod to rotate is arranged at one end, close to the suction nozzle assembly, of the support connecting rod. The end, close to the lifting mechanism, of the supporting connecting rod is provided with a connecting part and a supporting plate which sleeves the connecting part and is used for being connected with the lifting mechanism, the connecting part is fixedly provided with a limiting baffle, a buffer spring is arranged between the limiting baffle and the supporting plate, and the connecting part of the supporting connecting rod is further sleeved with a first limiting bearing; the supporting plate is arranged between the first limiting bearing and the limiting baffle, a limiting column is further arranged at the free end of the connecting part of the supporting connecting rod, and the first limiting bearing is arranged between the limiting column and the supporting plate. The suction nozzle is simple in structure, not only can buffer adsorption mounting be realized, but also the mounting precision can be ensured, and the quick replacement of the suction nozzle main body can be realized.

Description

Technical Field

[0001] The utility model relates to the field of PCB board mounting auxiliary materials, in particular to a PCB auxiliary material mounting head structure. Background Art

[0002] At present, auxiliary materials such as labels are generally attached to PCBs using auxiliary materials placement machines. During placement, the nozzle first absorbs the labels and other auxiliary materials and then attaches them to the corresponding position on the PCB. In order to protect the auxiliary materials and the PCB, a buffer mechanism is generally provided on the nozzle, which can provide buffer protection when the auxiliary materials are adsorbed and placed. However, since the buffer mechanism is provided on the nozzle, there is a certain gap at the nozzle, which can easily lead to a decrease in placement accuracy during high-speed placement, which may lead to deviations in the placement position. In addition, the existing placement head has a complex structure, and it is very troublesome to replace the nozzle. Utility Model Content

[0003] In order to solve the problems of low nozzle mounting accuracy and deviation in mounting position in the prior art, the utility model provides a PCB auxiliary material mounting head structure with high mounting accuracy and convenient nozzle replacement.

[0004] The utility model provides a PCB auxiliary material mounting head structure, comprising a supporting connecting rod, a lifting mechanism arranged at one end of the supporting connecting rod for driving the supporting connecting rod to move up and down, and a suction nozzle assembly arranged at the other end of the supporting connecting rod, the end of the supporting connecting rod close to the suction nozzle assembly is also provided with a rotating mechanism for driving the supporting connecting rod to rotate, the end of the supporting connecting rod close to the lifting mechanism is provided with a connecting portion and a supporting plate sleeved on the connecting portion for connecting with the lifting mechanism, the connecting portion is fixedly provided with a limiting baffle, a buffer spring is arranged between the limiting baffle and the supporting plate, the connecting portion of the supporting connecting rod is also sleeved with a first limiting bearing, the support plate is arranged between the first limiting bearing and the limiting baffle, the free end of the connecting portion of the supporting connecting rod is also provided with a limiting column, and the first limiting bearing is arranged between the limiting column and the supporting plate.

[0005] As a further improvement of the present invention, the supporting connecting rod is a hollow structure, and the suction nozzle assembly includes a connecting seat and a suction nozzle body, one end of the connecting seat is fixed on the supporting connecting rod, and the other end of the connecting seat is provided with a mounting hole connected to the supporting connecting rod, one end of the suction nozzle body is provided with a connecting tube adapted to the mounting hole, and the other end of the suction nozzle body is provided with a plurality of adsorption holes connected to the connecting tube, a limiting slot is respectively provided on both sides of the connecting tube, and two buckles are symmetrically provided on both sides of the connecting seat, and the middle part of the buckle is rotatably connected to the connecting seat, one end of the buckle is provided with a limiting hook adapted to the limiting slot, and the other end of the buckle is provided with a hand-held part, and an elastic rope is sleeved on the ends of the two buckles close to the limiting hooks.

[0006] As a further improvement of the present invention, the rotating mechanism includes a limiting sleeve sleeved on and fixedly connected to the supporting connecting rod, a rotating external gear connected to an outer key of the limiting sleeve, and a rotating driving mechanism adapted to the rotating external gear.

[0007] As a further improvement of the utility model, the limiting sleeve includes a limiting outer tube and a limiting inner tube, the limiting inner tube is sleeved on the supporting connecting rod, the limiting outer tube is sleeved on the limiting inner tube, the limiting outer tube is sleeved with a locking ring, and the locking ring is used to lock the limiting outer tube, the limiting inner tube and the supporting connecting rod.

[0008] As a further improvement of the present invention, the limiting sleeve is also sleeved with at least one second limiting bearing.

[0009] As a further improvement of the present invention, the rotary drive mechanism includes a rotary motor, a rotary transmission toothed belt and a rotary drive gear, the rotary drive gear is connected to the output end of the rotary motor, and the rotary transmission toothed belt is sleeved on the rotary drive gear and the rotary external gear.

[0010] As a further improvement of the present invention, the lifting mechanism includes a lifting slider fixedly connected to the support plate, a lifting guide rail adapted to the lifting slider, and a lifting drive mechanism for controlling the lifting and lowering of the lifting slider.

[0011] As a further improvement of the present utility model, the lifting drive mechanism includes a lifting motor, a lifting transmission toothed belt, a lifting drive gear and a lifting guide wheel. The lifting drive gear is connected to the output end of the lifting motor, the lifting transmission toothed belt is sleeved on the lifting drive gear and the lifting guide wheel, and the lifting slider is fixedly connected to the lifting transmission toothed belt through a splint.

[0012] As a further improvement of the present invention, an air joint is further provided at one end of the limit column away from the limit bearing.

[0013] As a further improvement of the present invention, the first limiting bearing is provided with a bearing sleeve, and the bearing sleeve is fixedly connected to the support plate.

[0014] The beneficial effect of the utility model is that the buffer spring is arranged between the limit baffle and the support plate, and when the suction nozzle assembly is adsorbing PCB auxiliary materials such as mounting labels, it can not only play a buffering and protective role to prevent the PCB board from being crushed, but also the buffer spring is arranged at the upper end of the support connecting rod instead of being arranged on the suction nozzle, so that the position deviation caused by the gap set by the buffer mechanism when the suction nozzle is adsorbed will not occur, and it can ensure the accurate adsorption of the suction nozzle and the auxiliary materials, ensure that the mounting head can still maintain high precision during high-speed mounting, reduce the mounting position deviation, and also realize the rapid replacement of the suction nozzle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a PCB auxiliary material mounting head structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the exploded structure of a PCB auxiliary material mounting head structure of the utility model;

[0017] Figure 3 The utility model is a schematic diagram of the exploded structure of a nozzle assembly of a PCB auxiliary material mounting head structure.

[0018] 1-support link; 2-lifting mechanism; 3-nozzle assembly; 4-rotating mechanism; 5-gas joint; 11-connecting part; 12-buffer spring; 13-limit baffle; 14-support plate; 15-first limit bearing; 16-limit column; 17-bearing sleeve; 21-lifting slider; 22-lifting guide rail; 23-lifting motor; 24-lifting drive gear; 25-lifting transmission belt; 31-connecting seat; 32-nozzle body; 33-buckle; 34-elastic rope; 35-limit hook; 36-connecting pipe; 37-limit slot; 38-hand-held part; 41-limit inner tube; 42-limit outer tube; 43-rotating outer gear; 44-locking pressure ring; 45-second limit bearing. DETAILED DESCRIPTION

[0019] In the description of the present invention, it should be understood that if there are descriptions involving orientation, such as orientations or positional relationships indicated by up, down, front, back, left, and right, the orientation description may be based on the orientation or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0020] In the description of the utility model, if there is a description of quantity, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of first or second, it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0022] like Figures 1 to 3 As shown, the utility model discloses a PCB auxiliary material mounting head structure, including a support link 1, a lifting mechanism 2 arranged at one end of the support link 1 for driving the support link 1 to move up and down, and a suction nozzle assembly 3 arranged at the other end of the support link 1, the support link 1 is also provided with a rotating mechanism 4 for driving the support link 1 to rotate at one end close to the suction nozzle assembly 3, a connecting portion 11 and a support plate 14 sleeved on the connecting portion 11 and used for connecting with the lifting mechanism 2 at one end of the support link 1 close to the lifting mechanism 2, a limiting baffle 13 is fixedly provided on the connecting portion 11, a buffer spring 12 is arranged between the limiting baffle 13 and the support plate 14, the connecting portion 11 of the support link 1 is also sleeved with a first limiting bearing 15, the support plate 14 is arranged between the first limiting bearing 15 and the limiting baffle 13, and a limiting column 16 is also provided at the free end of the connecting portion 11 of the support link 1, and the first limiting bearing 15 is arranged between the limiting column 16 and the support plate 14.

[0023] The buffer spring 12 is arranged between the limit baffle 13 and the support plate 14. When the suction nozzle assembly 3 is sucking and pasting PCB auxiliary materials such as labels, it can not only play a buffering and protective role to prevent the PCB board from being crushed, but also the buffer spring 12 is set at the upper end of the support link 1 instead of on the suction nozzle, so that the position deviation will not occur due to the gap set by the buffer mechanism when the suction nozzle is sucked. It can ensure the precise suction of the suction nozzle and the auxiliary materials, ensure that the placement head can still maintain high precision during high-speed placement, and reduce the placement position deviation.

[0024] The rotating mechanism 4 of the utility model is used to control the adjustment of the pasting direction of the auxiliary material.

[0025] In the present utility model, the support link 1 is a hollow structure, and the suction nozzle assembly 3 includes a connecting seat 31 and a suction nozzle body 32, one end of the connecting seat 31 is fixed on the supporting link 1, and the other end of the connecting seat 31 is provided with a mounting hole connected to the supporting link 1, one end of the suction nozzle body 32 is provided with a connecting pipe 36 adapted to the mounting hole, and the other end of the suction nozzle body 32 is provided with a plurality of adsorption holes connected to the connecting pipe 36, and a limiting slot 37 is respectively provided on both sides of the connecting pipe 36, and two buckles 33 are symmetrically provided on both sides of the connecting seat 31, and the middle part of the buckle 33 is rotatably connected to the connecting seat 31, one end of the buckle 33 is provided with a limiting hook 35 adapted to the limiting slot 37, and the other end of the buckle 33 is provided with a hand-held part 38, and an elastic rope 34 is sleeved on one end of the two buckles 33 close to the limiting hook 35.

[0026] The nozzle body 32 is provided with a connecting pipe 36 connected to the mounting socket on the connecting seat 31, and is fixed by a limiting hook 35. When the nozzle body 32 needs to be replaced according to different component types and sizes, the limiting hooks 35 of the buckles 33 can be disengaged from the limiting grooves 37 of the nozzle body 32 by simply pressing the hand-held parts 38 of the two buckles 33. The nozzle body 32 can then be quickly removed and replaced with a nozzle body 32 of a different size but the same structure, which greatly improves the replacement of the nozzle body 32. The nozzle assembly 3 has a simple structure and is easy to maintain and clean, which improves the stability and life of the equipment and reduces maintenance costs and time.

[0027] In the present invention, the rotating mechanism 4 comprises a limiting sleeve sleeved on the supporting link 1 and fixedly connected to the supporting link 1, a rotating external gear 43 key-connected to the outer side of the limiting sleeve, and a rotating driving mechanism adapted to the rotating external gear 43. The limiting sleeve is key-connected to the rotating external gear 43, which can not only realize the rotation of the supporting link 1 but also does not affect the lifting and lowering of the supporting link 1, and has a simple structure and is convenient to set up.

[0028] In the utility model, the limiting sleeve includes a limiting outer tube 42 and a limiting inner tube 41, the limiting inner tube 41 is sleeved on the supporting connecting rod 1, the limiting outer tube 42 is sleeved on the limiting inner tube 41, the limiting outer tube 42 is sleeved with a locking ring 44, the locking ring 44 is used to lock the limiting outer tube 42, the limiting inner tube 41 and the supporting connecting rod 1, the limiting inner tube 41 can be made of flexible material, and the side wall of the limiting outer tube 42 is provided with a plurality of evenly arranged strip holes, when the locking ring 44 is tightened by bolts, the side wall of the limiting outer tube 42 will be pressed inwardly, at this time, the limiting inner tube 41 will be compressed, and then the supporting connecting rod 1 will be compressed through the limiting inner tube 41, so as to realize the locking and fixation between the three.

[0029] In the present invention, the limiting sleeve is also sleeved with at least one second limiting bearing 45 to ensure stable rotation of the supporting connecting rod 1 .

[0030] In the present invention, the rotary drive mechanism comprises a rotary motor, a rotary transmission toothed belt and a rotary drive gear, the rotary drive gear is connected to the output end of the rotary motor, and the rotary transmission toothed belt is sleeved on the rotary drive gear and the rotary outer gear 43. The rotary drive mechanism has a simple structure, is easy to control, and has high precision.

[0031] In the present invention, the lifting mechanism 2 comprises a lifting slider 21 fixedly connected to the support plate 14, a lifting guide rail 22 adapted to the lifting slider 21, and a lifting drive mechanism for controlling the lifting of the lifting slider 21. The structure is simple and convenient to set.

[0032] In the utility model, the lifting drive mechanism includes a lifting motor 23, a lifting transmission toothed belt 25, a lifting drive gear 24 and a lifting guide wheel, the lifting drive gear 24 is connected to the output end of the lifting motor 23, the lifting transmission toothed belt 25 is sleeved on the lifting drive gear 24 and the lifting guide wheel, and the lifting slider 21 is fixedly connected to the lifting transmission toothed belt 25 through a clamping plate. The lifting drive mechanism has a simple structure, is easy to control, and has high precision.

[0033] In the present invention, an end of the limiting column 16 away from the limiting bearing is further provided with an air joint 5 for connecting a vacuum pumping device to ensure vacuum adsorption of the nozzle body 32 .

[0034] In the present invention, the first limit bearing 15 is provided with a bearing sleeve 17 , the bearing sleeve 17 is fixedly connected to the support plate 14 , and the bearing sleeve 17 is used to fix the first limit bearing 15 .

[0035] The utility model has a simple structure, can not only realize buffered adsorption mounting but also ensure mounting accuracy, and can also realize rapid replacement of the nozzle body 32 .

[0036] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A PCB auxiliary material placement head structure, characterized in that: The cam is an angular channel that is fixedly provided with a circle, and the circle is connected with a toothed plate, and the toothed plate is connected with the toothed plate to form a circle. The cam is connected with the toothed plate to form a circle. The cam is connected with the toothed plate to form a circle. The cam is connected with the toothed plate to form a circle. The cam is connected with the toothed plate to form a circle.

2. The PCB auxiliary material placement head structure according to claim 1, characterized in that: The support connecting rod is a hollow structure, and the suction nozzle assembly includes a connecting seat and a suction nozzle body, one end of the connecting seat is fixed on the supporting connecting rod, and the other end of the connecting seat is provided with a mounting hole connected to the supporting connecting rod, one end of the suction nozzle body is provided with a connecting tube adapted to the mounting hole, and the other end of the suction nozzle body is provided with a plurality of suction holes connected to the connecting tube, a limiting slot is respectively provided on both sides of the connecting tube, and two buckles are symmetrically provided on both sides of the connecting seat, and the middle part of the buckle is rotatably connected to the connecting seat, one end of the buckle is provided with a limiting hook adapted to the limiting slot, and the other end of the buckle is provided with a hand-held part, and an elastic rope is sleeved on one end of the two buckles close to the limiting hook.

3. The PCB auxiliary material placement head structure according to claim 1, characterized in that: The rotating mechanism comprises a limiting sleeve sleeved on the supporting connecting rod and fixedly connected to the supporting connecting rod, a rotating external gear connected to an outer key of the limiting sleeve, and a rotating driving mechanism adapted to the rotating external gear.

4. The PCB auxiliary material placement head structure according to claim 3, characterized in that: The limiting sleeve includes a limiting outer tube and a limiting inner tube, the limiting inner tube is sleeved on the supporting connecting rod, the limiting outer tube is sleeved on the limiting inner tube, the limiting outer tube is sleeved with a locking ring, and the locking ring is used to lock the limiting outer tube, the limiting inner tube and the supporting connecting rod.

5. The PCB auxiliary material placement head structure according to claim 4, characterized in that: The limiting sleeve is also sleeved with at least one second limiting bearing.

6. The PCB auxiliary material placement head structure according to claim 3, characterized in that: The rotary drive mechanism comprises a rotary motor, a rotary transmission toothed belt and a rotary drive gear. The rotary drive gear is connected to the output end of the rotary motor. The rotary transmission toothed belt is sleeved on the rotary drive gear and the rotary external gear.

7. The PCB auxiliary material placement head structure according to claim 1, characterized in that: The lifting mechanism includes a lifting slider fixedly connected to the support plate, a lifting guide rail adapted to the lifting slider, and a lifting drive mechanism for controlling the lifting of the lifting slider.

8. The PCB auxiliary material placement head structure according to claim 7, characterized in that: The lifting drive mechanism includes a lifting motor, a lifting transmission toothed belt, a lifting drive gear and a lifting guide wheel. The lifting drive gear is connected to the output end of the lifting motor. The lifting transmission toothed belt is sleeved on the lifting drive gear and the lifting guide wheel. The lifting slider is fixedly connected to the lifting transmission toothed belt through a clamping plate.

9. The PCB auxiliary material placement head structure according to claim 1, characterized in that: An air joint is also provided at one end of the limiting column away from the limiting bearing.

10. The PCB auxiliary material placement head structure according to claim 1, characterized in that: The first limiting bearing is provided with a bearing sleeve, and the bearing sleeve is fixedly connected to the support plate.

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