CN220235336U

CN220235336U - Suction structure

Info

Publication number: CN220235336U
Application number: CN202321868873.5U
Authority: CN
Inventors: 吴志湘; 李华增; 汪文飞
Original assignee: Huizhou Xiwensi Technology Co ltd
Current assignee: Huizhou Xiwensi Technology Co ltd
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2023-12-22
Anticipated expiration: 2033-07-17

Abstract

The utility model discloses a suction structure, which belongs to the technical field of surface mounting equipment, and comprises the following components: the device comprises a connecting part, a power machine, a transmission structure, an action part, an air guide connecting part and a suction nozzle structure; the two side surfaces of the connecting part are respectively provided with the power machine and the transmission structure, and the power machine is in power connection with the transmission structure. The action part and the transmission structure are arranged on the same side face of the connecting part, and the action part is connected with the transmission structure. The side surface of the action part is connected with the air guide connecting part; the tail end of the air guide connecting part is connected with the upper suction nozzle structure. The utility model solves the technical problem of how to improve the adsorption stability of electronic components.

Description

Suction structure

Technical Field

The utility model relates to the technical field of surface mounting equipment, in particular to a suction structure.

Background

SMT is an english abbreviation of surface mount technology Surface Mounted Technology, and surface mount refers to a short for serial process flows of performing component mounting processing on the surface of a PCB product; the PCB is an acronym for printed circuit board Printed Circuit Board. Surface mount technology is currently one of the most popular processes in the electronics assembly industry.

SMT pick & place machines generally refer to an assembly device that can implement surface mount technology for PCBs. The suction nozzle device of the SMT chip mounter can be generally used for grabbing electronic components, and the specific grabbing process is as follows: the electromagnetic valve is used for controlling the negative pressure generator to be communicated with the suction nozzle device so as to enable the suction nozzle device to grasp the electronic components through negative pressure; then, the mechanical arm drives the suction nozzle device to move so as to place the electronic components on the suction nozzle device on the surface of the PCB. Then, the electromagnetic valve switches the air blowing pipe, so that the air blowing pipe is communicated with the suction nozzle device, and air is blown into the suction nozzle device; so as to break the vacuum of the suction nozzle device and enable the suction nozzle device to put down the electronic components.

In the prior art, when the air blowing pipe blows air into the suction nozzle device, the thrust of the air flow pushes the electronic components to move downwards, and the strong air flow easily drives the electronic components to shake, so that the accuracy of the patch is affected. In addition, the vacuum suction nozzle in the prior art has the technical defect that impurities are easily sucked into the vacuum suction nozzle in the long-term use process, so that the vacuum degree is reduced due to dust accumulation in the vacuum generator; this situation also makes the electronic component prone to rattle during handling.

Based on this, chinese patent CN108366525a discloses a suction nozzle device for SMT chip mounter, it includes the suction nozzle, the fifth barrel, the second sliding ring, the second barrel, the extension board, spring and first barrel, be connected with the holding tank between the bottom of second barrel and the first barrel, the outside of first barrel still is connected with the second ring through a plurality of first leg connections, the outside of second ring is connected with the second brush hair, the grafting portion is inserted to the bottom of fifth barrel, be connected with the fourth barrel below the grafting, the below of fourth barrel is connected with the baffle, the below of baffle is connected with the third barrel, a plurality of first through-hole has evenly been seted up in the outside of third barrel and fourth barrel, the outside cover of fourth barrel is equipped with the cylindric filter screen, the bottom of third barrel is inserted through first sliding ring activity suction nozzle and is established to in the first barrel, the below of baffle is connected with a plurality of annular branch of arranging, be connected with the second filter screen between the adjacent branch, the condition that this kind of filter screen device can improve prior art, can effectively prevent that the vacuum degree is not enough and influence the accuracy condition of sucking.

However, the nozzle structure improved based on the prior art has the technical problems of easy vacuum leakage and easy deviation. In particular, in existing production practice, the 3210 ceramic capacitor element often requires the use of a rectangular nozzle structure and a circular nozzle structure, which are improved based on the prior art. For a rectangular suction nozzle structure, the suction area of the suction nozzle is small, so that the vacuum suction force of the suction nozzle is insufficient; in addition, the adsorption structure is provided with a multi-layer filter screen structure, so that the vacuum adsorption force of the adsorption structure is further reduced; in the production practice record based on the rectangular suction nozzle structure, the throwing rate reaches 12500PPM, and the offset reject ratio reaches 2300PPM; in order to reduce the reject ratio, the material must be produced at a reduced speed, which affects the mounting efficiency of the 3210 ceramic capacitor element. In addition, the adsorption area of the existing circular suction nozzle structure is larger than the adsorption surface of the capacitor element, so that vacuum can be leaked in the process of adsorption; in the production record based on the circular suction nozzle structure, the throwing rate reaches 10000PPM, the offset reject ratio reaches 1850PPM, and the normal operation of production is also influenced.

Disclosure of Invention

Based on this, it is necessary to provide a suction structure for solving the technical problem of how to improve the suction stability of the ceramic capacitor element in the SMT process.

A suction structure, comprising: the device comprises a connecting part, a power machine, a transmission structure, an action part, an air guide connecting part and a suction nozzle structure; the two side surfaces of the connecting part are respectively provided with the power machine and the transmission structure, and the power machine is in power connection with the transmission structure. The action part and the transmission structure are arranged on the same side face of the connecting part, and the action part is connected with the transmission structure. The side surface of the action part is connected with the air guide connecting part; the tail end of the air guide connecting part is connected with the upper suction nozzle structure. The suction nozzle structure is provided with a suction nozzle connecting part, a rod body, an adsorption part and a through hole; the suction nozzle connecting part is connected with the end part of the air guide connecting part; the rod body is respectively connected with the suction nozzle connecting part and the adsorption part; the adsorption part is provided with an adsorption end which is of an outer square and inner round structure; the suction nozzle connecting part, the rod body and the inside of the adsorption part are all provided with mutually communicated through holes, and the pipe through holes are communicated with the air guide connecting part.

Further, the transmission structure is provided with a driving wheel, a driven wheel, a transmission belt and a transmission connecting block.

Furthermore, the driving wheel is connected with the power machine, and the driving wheel and the driven wheel are oppositely arranged on the side face of the connecting part.

Further, the driving belt is connected with the driving wheel and the driven wheel respectively, and the side surface of the driving belt is connected with the driving connection block.

Further, the transmission connecting block is connected with the action part.

Further, the operation portion includes a guide rail, a slider, and an operation connection block.

Furthermore, the guide rail is fixedly connected to the side face of the connecting part, and the sliding block is movably connected to the guide rail.

Further, the action connecting block is respectively connected with the transmission connecting block and the sliding block.

Further, the connecting part is also provided with an upper auxiliary block and a lower auxiliary block; the upper auxiliary block and the lower auxiliary block are oppositely arranged at two end parts of the connecting part.

Further, a guide plate is arranged on the side face of the action connecting block; the guide piece is respectively and movably connected with the upper auxiliary block and the lower auxiliary block.

In summary, the suction structure of the present utility model is provided with the connection portion, the power machine, the transmission structure, the action portion, the air guide connection portion and the suction nozzle structure respectively; the two side surfaces of the connecting part are respectively provided with the power machine and the transmission structure, and the power machine is in power connection with the transmission structure. The action part and the transmission structure are arranged on the same side face of the connecting part, and the action part is connected with the transmission structure. The side surface of the action part is connected with the air guide connecting part; the tail end of the air guide connecting part is connected with the upper suction nozzle structure. The connecting part can be connected with external SMT equipment; the power machine drives the transmission structure after being electrified, so that the transmission structure drives the action part to reciprocate. When the action part drives the air guide connection part to act above the element to be adsorbed, the suction nozzle structure arranged at the lower end of the air guide connection part can adsorb the element. The suction nozzle structure is provided with a suction structure of the matched element, so that suction stability of electronic components such as ceramic capacitor elements can be enhanced.

Drawings

FIG. 1 is a schematic diagram of a suction structure according to the present utility model;

FIG. 2 is a schematic view of another direction of a suction structure according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a suction structure according to the present utility model;

FIG. 4 is a schematic view of another direction of a suction structure according to the present utility model;

fig. 5 is a schematic view of another direction of a suction structure according to the present utility model.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 5, an absorbing structure of the present utility model includes: a connecting part 1, a power machine 2, a transmission structure 3, an action part 4, an air guide connecting part 5 and a suction nozzle structure 6; the two side surfaces of the connecting part 1 are respectively provided with the power machine 2 and the transmission structure 3, and the power machine 2 is in power connection with the transmission structure 3. The action part 4 and the transmission structure 3 are arranged on the same side surface of the connecting part 1, and the action part 4 is connected with the transmission structure 3. The side surface of the action part 4 is connected with the air guide connecting part 5; the tail end of the air guide connecting part 5 is connected with the upper suction nozzle structure 6. The suction nozzle structure 6 has a suction nozzle connection part 601, a rod body 602, a suction part 603, and a through hole 604; the suction nozzle connecting part 601 is connected with the end part of the air guide connecting part 5; the rod body 602 is respectively connected with the suction nozzle connecting part 601 and the suction part 603; the adsorption part 603 has an adsorption end 603a, and the adsorption end 603a has an outer square and inner round structure; the suction nozzle connection part 5, the rod body 602 and the suction part 603 are provided with mutually communicated through holes 604, and the pipe through holes 604 are communicated with the air guide connection part 5.

Specifically, when the suction structure of the present utility model is in a working process, the connection part 1 may be connected with external SMT equipment in advance; thus, an external air source can be connected to the air guide connection 5. Then, the power machine 2 may be an electric motor, so that it may drive the transmission structure 3 after being electrified, and further make the transmission structure 3 drive the motion part 4 to reciprocate. When the action part 4 drives the air guide connection part 5 to act above the component to be adsorbed, the suction nozzle structure 6 arranged at the lower end of the air guide connection part 5 can adsorb the component; then, after the suction structure of the present utility model is driven to a predetermined position by an external SMT device, the suction nozzle structure 6 releases the sucked component to the predetermined position. Because the suction nozzle structure 6 is provided with the suction portion 603 corresponding to the suction portion of the component, and the end portion of the suction portion 603 is provided with the suction end 603a with an outer square and an inner round, the inner round structure of the suction end 603a is communicated with the through hole 604, and the outer square outline of the suction end 603a matches the suction surface of the component, thereby effectively improving the suction stability of the component. Furthermore, the end of the air guide connection part 5 may be provided with a plurality of the suction nozzle structures 6 at the same time, so as to improve the efficiency of sucking and transporting components.

Further, the transmission structure 3 is provided with a driving wheel 301, a driven wheel 302, a transmission belt 303 and a transmission connecting block 304; the driving wheel 301 is connected with the power machine 2, and the driving wheel 301 and the driven wheel 302 are oppositely arranged on the side surface of the connecting part 1; the driving belt 303 is respectively connected with the driving wheel 301 and the driven wheel 302, and the side surface of the driving belt 303 is connected with the driving connection block 304; the transmission connection block 304 is connected to the operation portion 4.

Further, the operation unit 4 includes a guide rail 401, a slider 402, and an operation connection block 403; the guide rail 401 is fixedly connected to the side surface of the connecting part 1, and the sliding block 402 is movably connected to the guide rail 401; the action connection block 403 connects the transmission connection block 304 and the slide block 402, respectively.

Specifically, the driving wheel 301 is connected to the power machine 2, so that, after the power of the power machine 2 is output, the driving wheel 301 and the driven wheel 302 cooperate with each other to drive the transmission 303 to act around the two; at this time, the transmission connection block 304 connected to the side of the transmission belt 303 may also be operated according to the operation of the transmission belt 303. Since the motion connection block 403 is connected to the transmission connection block 304, the motion connection block 403 can receive the power transmitted from the transmission connection block 304, so that the motion connection block can reciprocate along the limit of the guide rail 401. When the operation connection block 403 reciprocates, the suction nozzle structure 6 is also driven to perform the reciprocating operations of sucking and releasing the component.

Further, the connecting part 1 is further provided with an upper auxiliary block 101 and a lower auxiliary block 102; the upper auxiliary block 101 is provided at both end portions of the connection portion 1 so as to face the lower auxiliary block 102. The action connection block 304 has a guide piece 304a; the guide piece 304a is disposed on a side surface of the operation connection block 304; the guide plate 304a is movably connected with the upper auxiliary block 101 and the lower auxiliary block 102, respectively. Specifically, when the motion part 4 is driven by the transmission structure 3 to reciprocate, the guiding piece 304a may guide along the upper auxiliary block 101 or the lower auxiliary block 102, so that the traveling motion of the motion part 4 is smoother; and prevents the nozzle structure 6 from being abnormally shaken when the component is sucked.

Further, the air guide connection part 5 is provided with an accessory connection block 501 and an auxiliary suction nozzle structure 502; the accessory connection block 501 is detachably connected to the side surface of the air guide connection part 5; the auxiliary nozzle structure 502 is movably disposed in the accessory connection block 501. Specifically, the auxiliary suction nozzle structure 502 may further be provided with a silicone suction cup 502a; the silica gel sucker 502a can suck larger components, so that the universality of the sucking structure is enhanced.

In summary, the suction structure of the present utility model is provided with the connecting portion 1, the power machine 2, the transmission structure 3, the actuating portion 4, the air guide connecting portion 5 and the suction nozzle structure 6; the two side surfaces of the connecting part 1 are respectively provided with the power machine 2 and the transmission structure 3, and the power machine 2 is in power connection with the transmission structure 3. The action part 4 and the transmission structure 3 are arranged on the same side surface of the connecting part 1, and the action part 4 is connected with the transmission structure 3. The side surface of the action part 4 is connected with the air guide connecting part 5; the tail end of the air guide connecting part 5 is connected with the upper suction nozzle structure 6. The connecting part 1 can be connected with external SMT equipment; the power machine 2 drives the transmission structure 3 after being electrified, so that the transmission structure 3 drives the action part 4 to reciprocate. When the actuating part 4 drives the air guide connecting part 5 to actuate above the component to be adsorbed, the suction nozzle structure 6 arranged at the lower end of the air guide connecting part 5 can adsorb the component. The suction nozzle structure 6 is provided with a suction structure of a matching element, so that suction stability of electronic components such as ceramic capacitor elements can be enhanced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A suction structure, characterized in that it comprises: a connecting part (1), a power machine (2), a transmission structure (3), an action part (4), an air guide connecting part (5) and a suction nozzle structure (6); the two side surfaces of the connecting part (1) are respectively provided with the power machine (2) and the transmission structure (3), and the power machine (2) is in power connection with the transmission structure (3); the action part (4) and the transmission structure (3) are arranged on the same side face of the connecting part (1), and the action part (4) is connected with the transmission structure (3); the side surface of the action part (4) is connected with the air guide connecting part (5); the tail end of the air guide connecting part (5) is connected with the suction nozzle structure (6); the suction nozzle structure (6) is provided with a suction nozzle connecting part (601), a rod body (602), an adsorption part (603) and a through hole (604); the suction nozzle connecting part (601) is connected with the end part of the air guide connecting part (5); the rod body (602) is respectively connected with the suction nozzle connecting part (601) and the adsorption part (603); the adsorption part (603) is provided with an adsorption end (603 a), and the adsorption end (603 a) is of an outer square and inner round structure; the suction nozzle connecting part (601), the rod body (602) and the adsorption part (603) are respectively provided with mutually communicated through holes (604), and the through holes (604) are communicated with the air guide connecting part (5).

2. A suction structure according to claim 1, characterized in that: the transmission structure (3) is provided with a driving wheel (301), a driven wheel (302), a transmission belt (303) and a transmission connecting block (304).

3. A suction structure according to claim 2, characterized in that: the driving wheel (301) is connected with the power machine (2), and the driving wheel (301) and the driven wheel (302) are oppositely arranged on the side face of the connecting part (1).

4. A suction structure according to claim 3, wherein: the driving belt (303) is respectively connected with the driving wheel (301) and the driven wheel (302), and the side surface of the driving belt (303) is connected with the driving connecting block (304).

5. The suction structure according to claim 4, wherein: the transmission connecting block (304) is connected with the action part (4).

6. A suction structure according to claim 5, wherein: the operation unit (4) has a guide rail (401), a slider (402), and an operation connection block (403).

7. The suction structure according to claim 6, wherein: the guide rail (401) is fixedly connected to the side face of the connecting portion (1), and the sliding block (402) is movably connected to the guide rail (401).

8. A suction structure according to claim 7, wherein: the action connecting block (403) is respectively connected with the transmission connecting block (304) and the sliding block (402).

9. A suction structure according to claim 8, wherein: the connecting part (1) is also provided with an upper auxiliary block (101) and a lower auxiliary block (102); the upper auxiliary block (101) and the lower auxiliary block (102) are arranged at two ends of the connecting part (1) in a way of being opposite to each other.

10. A suction structure according to claim 9, wherein: a guide piece (304 a) is arranged on the side surface of the action connecting block (403); the guide piece (304 a) is movably connected with the upper auxiliary block (101) and the lower auxiliary block (102) respectively.