CN217742149U

CN217742149U - Suction nozzle structure of PCB chip mounter

Info

Publication number: CN217742149U
Application number: CN202221897440.8U
Authority: CN
Inventors: 张莉; 胡代军
Original assignee: Hangzhou Luotian Electronic Technology Co ltd
Current assignee: Hangzhou Luotian Electronic Technology Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-11-04
Anticipated expiration: 2032-07-22

Abstract

The utility model belongs to the technical field of production of PCB chip mounters, in particular to a suction nozzle structure of a PCB chip mounter; the method comprises the following steps: the sleeve is internally provided with an air passage, and the air passage is arranged in the sleeve along the circumferential direction; the suction rod is arranged in the air passage of the sleeve in a sliding manner, and an airflow cavity communicated with the air passage is formed inside the suction rod; the suction nozzle is arranged at one end of the suction rod, and a suction cavity communicated with the airflow cavity is formed in the suction nozzle; the elastic piece is arranged in the air passage and is positioned between the sleeve and the suction rod; the auxiliary suction table is sleeved on the outer wall of the suction nozzle, and ports at the bottom of the auxiliary suction table extend transversely and longitudinally to form cross-shaped air channel openings respectively; and the one-way valve is arranged in the airflow chamber and is adjacent to the auxiliary suction table. The utility model discloses PCB board chip mounter's suction nozzle structure provides one kind and can avoid gaseous from the suction nozzle to give vent to anger, improves the stability to electrical components absorption.

Description

Suction nozzle structure of PCB (printed circuit board) chip mounter

Technical Field

The utility model belongs to the technical field of the production of PCB board chip mounter, especially, relate to a suction nozzle structure of PCB board chip mounter.

Background

In the process of producing the pcb, electrical components need to be mounted on the pcb or other substrates, and in the current mounting process, various electrical components are sucked by a chip mounter through a suction nozzle at the tail end of a mounting head and transferred to a specified position to be mounted, so that mounting operation of the pcb is realized.

Because the specifications of electrical components are different, the suction nozzles with different specifications need to be replaced according to the specifications of the electrical components used in actual needs in the production process, but the current suction nozzles are generally fixed, so that the suction nozzles with different specifications are not convenient to replace, and certain limitation is realized.

The utility model discloses a but the quick detach suction nozzle structure for chip mounter is disclosed to the chinese utility model patent that the publication date is CN214296818U, including fixed plate and fixing base, fixedly connected with fixing base, its characterized in that on the fixed plate side: the inside draw-in groove of having seted up of fixing base, fixing base internally mounted has the connecting device who makes things convenient for the dismouting to put, buffer is installed to connecting device one side, buffer one side is provided with the suction nozzle device, the inside fixedly connected with main spring of fixing base, the overlap joint of the main spring other end has the dead lever, the square hole has been seted up to dead lever one end, first round hole has been seted up to the symmetry on the dead lever, the second round hole has been seted up to one side that first round hole was kept away from to the dead lever, first round hole inner wall sliding connection has spacing post, spacing post one side fixedly connected with connecting plate, the one end fixedly connected with movable post of spacing post is kept away from to the connecting plate, the utility model discloses simple structure, efficiency is higher, and it is more convenient to use, and the practicality is stronger.

Although the suction nozzle of different specifications is convenient for change to above-mentioned patent, convenient to use, the practicality is strong, but above-mentioned patent is when receiving outside air supply, and gaseous easy follow suction nozzle is given vent to anger to lead to absorbing electrical components unstability, the phenomenon of landing appears easily in the transfer electrical components in-process.

Therefore, in view of the above problems, an object of the present invention is to provide a suction nozzle capable of preventing gas from being discharged from the suction nozzle and improving the stability of suction of an electrical component.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the technical problem who exists to the aforesaid, provide one kind and can avoid gaseous from the suction nozzle to give vent to anger, improve the stability to electrical components absorption.

In view of this, the utility model provides a suction nozzle structure of PCB board chip mounter, include:

the sleeve is internally provided with an air passage, and the air passage is arranged in the sleeve along the circumferential direction;

the suction rod is arranged in the air passage of the sleeve in a sliding manner, and an airflow chamber communicated with the air passage is formed inside the suction rod;

the suction nozzle is arranged at one end of the suction rod, and a suction cavity communicated with the airflow cavity is formed in the suction nozzle;

the elastic piece is arranged in the air passage and is positioned between the sleeve and the suction rod;

the auxiliary suction table is sleeved on the outer wall of the suction nozzle, and ports at the bottom of the auxiliary suction table extend transversely and longitudinally to form cross-shaped air channel openings respectively;

and the one-way valve is arranged in the airflow chamber and is adjacent to the auxiliary suction table.

In this technical scheme, outside air supply passes through the sleeve, the air flue, the air current cavity, absorb cavity and air flue intraoral production vacuum negative pressure, set formula overall structure feeds in Z axle or Y axle direction, it begins to prepare to absorb to aim at electrical components with supplementary suction platform, through set up the elastic component between sleeve and suction rod, the elastic component is compressed in the in-process of pushing down, the shock-absorbing capacity has been improved, thereby slightly weak is to the pressure that electrical components produced by pushing down, set up into vertically and horizontally staggered 'ten' style of calligraphy with the air flue of supplementary suction platform simultaneously, the adsorption area that electrical components was adsorbed to the air flue mouth has been increased, make suction stronger, electrical components's stability in the removal process has been improved, through set up the check valve in the air current cavity, make the negative pressure can't give vent from absorbing the cavity, thereby improve the stability of electrical components absorption, avoid electrical components to take place the landing in the transportation process.

In the above technical scheme, further, the suction rod has a chute on its outer side wall, and a projection is provided inside the sleeve and embedded in the chute.

In this technical scheme, through having seted up the spout on the lateral wall of inhaling the pole, set up the lug simultaneously on the sleeve inner wall, the lug is inlayed in the spout for spout on the inhaling pole removes along the lug, thereby plays the effect of direction to the inhaling pole, avoids the inhaling pole to take place the obscission at the removal in-process, and has the damping between lug and the spout, makes the inhaling pole be difficult for random removal, and then more stable the removing of inhaling pole, improves the stability of inhaling pole.

In any of the above technical schemes, further, the suction nozzle lateral wall is provided with a ball hole, the auxiliary suction table inner wall is provided with a ball clamping channel corresponding to the ball hole one to one, the balls are clamped in the ball hole and the ball clamping channel simultaneously, a return spring is arranged between the balls and the ball hole, the return spring is matched with the balls, and the return spring is clamped in the ball clamping channel tightly.

In this technical scheme, inlay in ball hole and ball card way through the ball card, thereby will assist the suction table to fix on the suction nozzle, when needs absorb the electrical components of different specifications, the manual work can pull supplementary suction table and move to the downside along the suction nozzle outer wall, supplementary suction table drives ball card way and moves to the downside along the ball simultaneously, thereby ball card way moves to and breaks away from the contact with the ball, supplementary suction table inner wall just extrudees the ball, make the ball move to the inboard along the ball hole, reset spring is compressed, at this moment, the ball just can not chucking ball card way, people just take off the supplementary suction table on the suction nozzle, and will need to use the supplementary suction table cover of different specifications to establish on the suction nozzle, after supplementary suction table is installed, ball card way and ball correspond, under reset spring's reset effect, the ball moves to the outside and contacts with ball card way, through reset spring's elasticity, make the ball hang down in ball card way, from this supplementary suction table of different specifications, be convenient for absorb the electrical components of different specifications and change.

In any of the above technical solutions, further, there are at least two ball holes.

In this technical scheme, have two at least through the ball hole to improve the stability of inhaling the platform installation to the supplementary, prevent that supplementary platform of inhaling from droing, and then more stable to electrical components paster.

In any of the above technical solutions, further, a sealing ring is disposed on a port of the auxiliary suction table

In this technical scheme, can inhale the platform through the sealing washer and play sealed effect to the assistance, prevent gas leakage.

In any of the above technical solutions, further, a soft contact layer is disposed on an end section of the bottom of the auxiliary suction platform separated by the air channel opening.

In this technical scheme, through set up soft contact layer on the end cross-section of supplementary platform bottom of inhaling, at the in-process of adsorbing electrical components, change the direct hard contact of suction nozzle and electrical components, and become the flexible contact between soft contact layer and the electrical components, avoid supplementary platform of inhaling to push down the in-process and damage electrical components.

In any of the above technical solutions, further, the elastic member is a buffer spring.

In the technical scheme, the buffer spring is used as the elastic piece, so that the effect is good, the characteristics of convenience in installation, low price and the like are realized, and the production cost is saved.

The utility model has the advantages that:

1. through the one-way valve, the negative pressure can not be discharged from the suction chamber, so that the suction stability of the electrical element is improved, and the electrical element is prevented from sliding off in the transfer process;

2. the air passage openings of the auxiliary suction table are arranged into a criss-cross shape, so that the adsorption area of the air passage openings for adsorbing the electrical elements is increased, the suction force is stronger, and the stability of the electrical elements in the moving process is improved;

3. the auxiliary suction table is fixed on the suction nozzle by the ball clamped and embedded in the ball hole and the ball clamping channel, so that the auxiliary suction table is convenient to disassemble and is suitable for sucking electrical components of different specifications;

4. the soft contact layer is arranged on the end section of the bottom of the auxiliary suction table, so that the direct hard contact between the suction nozzle and the electric device is changed into the flexible contact between the soft contact layer and the electric device element in the process of adsorbing the electric device element, and the electric device element is prevented from being damaged in the pressing process of the auxiliary suction table.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a bottom view of the present invention;

fig. 3 is a first cross-sectional view of the present invention;

fig. 4 is a second cross-sectional view of the present invention;

the reference numbers in the figures are: 1. a sleeve; 101. an airway; 102. an elastic member; 2. a suction rod; 121. a gas flow chamber; 3. a suction nozzle; 131. an aspiration chamber; 4. an auxiliary suction table; 41. an air duct opening; 5. a one-way valve; 6. A chute; 601. a bump; 7. a ball bearing; 701. a ball hole; 702. the ball is blocked; 703. a return spring; 8. a seal ring; 9. a soft contact layer.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived from the embodiments in the present application by a person skilled in the art, are within the scope of protection of the present application.

In the description of the present application, it is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. For convenience of description, the dimensions of the various features shown in the drawings are not necessarily drawn to scale. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It should be noted that in the description of the present application, the orientation or positional relationship indicated by the terms such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" and the like are generally based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description only, and in the case of not making a reverse description, these orientation terms do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that, in the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Example 1:

this embodiment provides a suction nozzle 3 structure of PCB chip mounter, includes:

the sleeve comprises a sleeve 1, wherein an air passage 101 is arranged in the sleeve 1, and the air passage 101 is arranged in the sleeve 1 along the circumferential direction;

the suction rod 2 is arranged in the air passage 101 of the sleeve 1 in a sliding mode, and an air flow chamber 121 communicated with the air passage 101 is formed inside the suction rod 2;

a suction nozzle 3 disposed at one end of the suction rod 2, the suction nozzle 3 having a suction chamber 131 communicated with the airflow chamber 121 therein;

the elastic piece 102 is arranged in the air passage 101 and is positioned between the sleeve 1 and the suction rod 2;

an auxiliary suction table 4 is sleeved on the outer wall of the suction nozzle 3, and ports at the bottom of the auxiliary suction table 4 extend transversely and longitudinally respectively to form a cross-shaped air passage 101 port;

and a check valve 5 disposed in the air flow chamber 121 and adjacent to the auxiliary suction table 4.

In the technical scheme, an external air source passes through the sleeve 1, the air passage 101, the air flow chamber 121, vacuum negative pressure is generated in the suction chamber 131 and the air passage 101, the overall structure of the set formula is fed in the direction of the Z axis or the Y axis, the auxiliary suction table 4 is aligned to the electric appliance element to be ready for suction, the elastic part 102 is arranged between the sleeve 1 and the suction rod 2, the elastic part 102 is compressed in the pressing-down process, the buffer performance is improved, the pressure generated by pressing-down on the electric appliance element is slightly weakened, meanwhile, the air passage 101 of the auxiliary suction table 4 is arranged in a criss-cross shape, the suction area of the electric appliance element sucked by the air passage 101 is increased, the suction force is stronger, the stability of the electric appliance element in the moving process is improved, the negative pressure cannot be discharged from the suction chamber 131 through the one-way valve 5 arranged in the air flow chamber 121, the suction stability of the electric appliance element is improved, and the sliding falling of the electric appliance element in the transferring process is avoided.

Example 2:

the present embodiment provides a suction nozzle 3 structure of a PCB chip mounter, which includes the technical solutions of the above embodiments, and further has the following technical features.

As shown in fig. 4, in the present embodiment, preferably, the outer side wall of the suction rod 2 is provided with a sliding slot 6, the inside of the sleeve 1 is provided with a projection 601, and the projection 601 is embedded into the sliding slot 6.

In this technical scheme, through having seted up spout 6 on the lateral wall at sucker 2, set up lug 601 on 1 inner wall of sleeve simultaneously, lug 601 is inlayed in the spout 6, make 6 spouts on the sucker 2 remove along lug 601, thereby play the effect of direction to sucker 2, avoid sucker 2 to take place the obscission at the removal in-process, and there is the damping between lug 601 and the spout 6, make sucker 2 be difficult for random removal, and then sucker 2 more stable removes, improve sucker 2's stability.

As shown in fig. 4, in the present embodiment, preferably, the outer side wall of the suction nozzle 3 is provided with ball holes 701, the inner wall of the auxiliary suction table 4 is provided with ball grooves 702 corresponding to the ball holes 701 one by one, the balls 7 are simultaneously clamped in the ball holes 701 and the ball grooves 702, a return spring 703 is arranged between the balls 7 and the ball holes 701, the return spring 703 is matched with the balls 7, and the return spring 703 clamps the balls 7 in the ball grooves 702.

In this technical scheme, inlay card to ball hole 701 and ball card way 702 through ball 7 in, thereby will assist and inhale platform 4 and fix on suction nozzle 3, when needing to absorb the electrical components of different specifications, the artifical supplementary platform 4 that inhales can be pulled and move to the downside along the outer wall of suction nozzle 3, supplementary platform 4 that inhales simultaneously drives ball card way 702 and moves to the downside along ball 7, thereby ball card way 702 moves to and breaks away from the contact with ball 7, supplementary platform 4 inner wall of inhaling just extrudees ball 7, make ball 7 move to the inboard along ball hole 701, reset spring 703 is compressed, at this moment ball 7 just can not block ball card way 702, people just take off supplementary platform 4 on suction nozzle 3, and will need to use the supplementary platform 4 cover of different specifications to establish on suction nozzle 3, after supplementary platform 4 is installed, ball card way 702 corresponds with ball 7, under the reset spring 703's reset action, ball 7 moves to the outside and contacts with ball card way 702, through reset spring 703's elasticity, make ball 7 low tight in ball card way 702, from this change the supplementary platform of ball card, the different specifications can be convenient for the different electrical components of sucking platform.

As shown in fig. 4, in the present embodiment, at least two ball holes 701 are preferably provided.

In this technical scheme, there are two at least through ball hole 701 to improve the stability of inhaling the installation of platform 4 to the supplementary, prevent that the supplementary platform 4 of inhaling from droing, and then more stable to electrical components paster.

Example 3:

in the present embodiment, as shown in fig. 3, it is preferable that a sealing ring 8 is provided at the port of the auxiliary suction table 4

In this technical scheme, can inhale platform 4 to supplementary through sealing washer 8 and play sealed effect, prevent gas leakage.

As shown in fig. 2-4, in the present embodiment, it is optimized that the soft contact layer 9 is disposed on the end section of the bottom of the auxiliary suction table 4 separated by the opening of the air passage 101.

In this technical scheme, through set up soft contact layer 9 on the end cross-section of supplementary platform 4 bottom of inhaling, at the in-process that adsorbs electrical components, change the direct hard contact of suction nozzle 3 and electrical components, and become the flexible contact between soft contact layer 9 and the electrical components, avoid supplementary platform 4 to push down the in-process and damage electrical components.

As shown in fig. 3 and 4, in the present embodiment, the elastic member 102 is preferably a buffer spring.

In the technical scheme, the buffer spring is used as the elastic part 102, so that the effect is good, the characteristics of convenience in installation, low price and the like are realized, and the production cost is saved.

While the embodiments of the present application have been described in connection with the drawings, the embodiments and features of the embodiments of the present application can be combined with each other without conflict and the present application is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and many modifications may be made by one skilled in the art without departing from the spirit and scope of the present application as claimed.

Claims

1. The utility model provides a suction nozzle structure of PCB board chip mounter which characterized in that includes:

the sleeve (1) is internally provided with an air passage (101), and the air passage (101) is arranged in the sleeve (1) along the circumferential direction;

the suction rod (2) is arranged in the air passage (101) of the sleeve (1) in a sliding mode, and an air flow chamber (121) communicated with the air passage (101) is formed in the suction rod (2);

the suction nozzle (3) is arranged at one end of the suction rod (2), and a suction cavity (131) communicated with the airflow cavity (121) is formed in the suction nozzle (3);

the elastic piece (102) is arranged in the air channel (101) and is positioned between the sleeve (1) and the suction rod (2);

the auxiliary suction table (4) is sleeved on the outer wall of the suction nozzle (3), and ports at the bottom of the auxiliary suction table (4) respectively extend along the transverse direction and the longitudinal direction to form cross-shaped air passage (101) ports;

and the check valve (5) is arranged in the airflow chamber (121) and is adjacent to the auxiliary suction table (4).

2. The suction nozzle structure of a PCB chip mounter according to claim 1, wherein a sliding slot (6) is formed on an outer side wall of the suction rod (2), a bump (601) is formed inside the sleeve (1), and the bump (601) is embedded into the sliding slot (6).

3. The suction nozzle structure of a PCB board mounter according to claim 1, wherein the outer sidewall of the suction nozzle (3) is provided with a ball hole (701), the inner wall of the auxiliary suction table (4) is provided with a ball clamping channel (702) corresponding to the ball hole (701) one by one, the ball (7) is simultaneously clamped and embedded in the ball hole (701) and the ball clamping channel (702), a return spring (703) is arranged between the ball (7) and the ball hole (701), the return spring (703) is matched with the ball (7), and the return spring (703) tightens the ball (7) to be clamped and embedded in the ball clamping channel (702).

4. A suction nozzle structure of a PCB mounter according to claim 3, wherein there are at least two ball holes (701).

5. The suction nozzle structure of a PCB board mounter according to claim 1, wherein a sealing ring (8) is provided on a port of said auxiliary suction table (4).

6. The suction nozzle structure of a PCB chip mounter according to claim 1, wherein a soft contact layer (9) is provided on the end section of the bottom of the auxiliary suction table (4) divided by the air passage (101) port.

7. The suction nozzle structure of a PCB mounter according to claim 1, wherein said elastic member (102) is a buffer spring.