WO2022198717A1

WO2022198717A1 - Multifunctional suction nozzle and operating method

Info

Publication number: WO2022198717A1
Application number: PCT/CN2021/085347
Authority: WO
Inventors: 屈显波; 黄祥恩; 王波
Original assignee: 桂林芯飞光电子科技有限公司
Priority date: 2021-03-26
Filing date: 2021-04-02
Publication date: 2022-09-29
Also published as: CN113066752B; CN113066752A

Abstract

A multifunctional suction nozzle and an operating method. The suction nozzle comprises a first suction nozzle body (7), a second suction nozzle body (6), and a plurality of successively stacked slotting adjustment arms (3-5) disposed between the first suction nozzle body (7) and the second suction nozzle body (6), wherein at least three slotting adjustment arms (3-5) can independently and axially slide along a suction nozzle body and are locked in a certain position. During a eutectic process, the suction nozzle can avoid a light emitting bar of a chip and would not crush key parts of the chip such as the light emitting bar. Both the width and depth of a notch (13) can be adjusted with respect to an offset position of the suction nozzle body, and a rotatable design is used in the suction nozzle body, so that when a supplied material chip is tilted, the position of the chip can be corrected by rotating the suction nozzle. The suction nozzle is high in production efficiency and low in cost, and a suction nozzle can be compatible with multiple suction nozzles for production and use, so that the time of suction nozzle replacement and device adjustment is reduced. When replacing different operating objects, the nozzle is suitable for use only within an adjustment range of the notch (13).

Description

A kind of multifunctional suction nozzle and working method

technical field

The invention relates to the technical field of nozzles, in particular to a multifunctional suction nozzle and a working method.

Background technique

With the rapid development of the Internet, big data, artificial intelligence, and high-definition TV, the network bandwidth has been continuously improved, and high-definition video conferencing, cloud services, massive data exchange, and mobile office have become more efficient and open platforms. To promote social intelligence and information-based office, and the requirements for network bandwidth and speed are getting higher and higher, human beings use various methods to improve the transmission rate of chips.

With the increase of chip speed, the fragility of optical device chips and the process requirements are getting higher and higher, and the process requirements are more stringent in the product production process, especially in the eutectic process, because the eutectic process will directly contact the chip, and it is easy to Cause chip damage, seriously affect the yield, especially for high-speed chips, because high-speed chips are expensive, and the outer contour structure of various solutions has different shapes. The existing eutectic nozzles cannot avoid pressing the chip light-emitting strips. It is very easy to cause chip damage, resulting in yield loss, increased cost, and no competitive advantage in the existing market. In this context, there is an urgent need for a nozzle that can avoid pressing the chip light-emitting strip and is compatible with all chip outlines.

SUMMARY OF THE INVENTION

In order to solve the deficiencies in the prior art, the present invention provides a multifunctional suction nozzle and a working method, which solve the technical problem of poor working adaptability of the suction nozzle in the prior art.

In order to achieve the above goals, the present invention adopts the following technical solutions:

A multifunctional suction nozzle: comprising a suction nozzle body, a suction nozzle body driving device for driving the suction nozzle body to rotate or move axially, and the suction nozzle body comprises a suction nozzle body 1, a suction nozzle body 2, and a suction nozzle body 1 disposed on the suction nozzle body 1 . Several slotted adjusting arms are stacked in sequence between the two suction nozzle bodies, wherein at least three of the slotted adjusting arms can independently axially slide between the first suction nozzle body and the second suction nozzle body and be locked in a certain position.

Preferably, the aforesaid multifunctional suction nozzle further comprises a slotted adjustment gear, and the slotted adjustment arm comprises a slotted adjustment arm 1, a slotted adjustment arm 2, a slotted adjustment arm 3, a slotted adjustment arm 1, a slotted adjustment arm The second slotted adjusting arm and the third slotted adjusting arm are provided with racks. When a slotted adjusting arm needs to be driven to slide axially, the slotted adjusting gear meshes with the corresponding rack in the slotted adjusting arm.

Preferably, the aforesaid multifunctional suction nozzle further comprises an adjustment ring for adjusting the distance between the first suction nozzle body and the second suction nozzle body;

The adjustment ring includes an adjustment ring 1 and an adjustment ring 2, the adjustment ring 1 is connected to the outer surface of the suction nozzle body, and the adjustment ring 2 is connected to the outer surface of the suction nozzle body 2. The suction nozzle body 1 and the suction nozzle body 2 are respectively provided with an inner cone section 1. , The second inner cone section, the outer diameter of the cross section of the inner cone section 1 and the inner cone section 2 increase or decrease sequentially along the axis direction of the nozzle body, and the adjustment ring 1 and the adjustment ring 2 are respectively provided with the inner cone section. 1. Outer cone section 1 and outer cone section 2 with matching outer surfaces of inner cone section 2;

There is an elastic force between the second suction nozzle body and the first suction nozzle body to make the first suction nozzle body and the second suction nozzle body fit to the second adjusting ring and the first adjusting ring respectively.

Preferably, the aforesaid multi-functional suction nozzle: the first suction nozzle body and the second suction nozzle body are connected by a guide rod, all the slotted adjustment arms are provided with waist-shaped holes, the guide rods pass through the waist-shaped holes, and the grooves are The two sides of the second adjusting arm are respectively connected with the first slotted adjusting arm and the third slotted adjusting arm through the sealing strip.

Preferably, the aforesaid multifunctional suction nozzle: when the suction nozzle body acts on the working object, at least one slotted adjusting arm is not in contact with the working object, and the working object end of the suction nozzle body forms a position to be protected from the working object notch.

Preferably, the aforesaid multi-function suction nozzle: the rack includes a rack one, a rack two, a rack three, and a rack one, which are sequentially arranged on the first slotted adjustment arm, the second slotted adjustment arm, and the third slotted adjustment arm. The heights of the second rack, rack three, and rack three to the nozzle body increase in turn.

Preferably, the aforesaid multi-function suction nozzle: the suction nozzle body drive device includes a rotation adjustment gear for driving the suction nozzle body to rotate with the axis center of the circle and a size adjustment gear for driving the suction nozzle body to slide axially;

The first nozzle body meshes with the rotation adjustment gear through the rotating adjustment tooth surface, and the second suction nozzle body meshes with the size adjustment gear through the size adjustment tooth surface.

A working method of a multifunctional suction nozzle, characterized in that:

When the suction nozzle is in contact with the working object, at least one slotted adjusting arm is not in contact with the working object, and the working object end of the suction nozzle body forms a notch that avoids the position to be protected by the working object;

When the width of the position to be protected changes, adjust the distance between the slotted adjusting arm or the nozzle body 1 and the nozzle body 2, and make the width of the slot not less than the width of the position to be protected;

When the central axis of the work object and the nozzle body deviates, adjust the slotted adjusting arm that is relatively close to the work object to the direction away from the work object, and keep the notch away from the position to be protected;

When the trajectory of the position to be protected changes, rotate the nozzle body and make the angle of the center line of the notch match the trajectory of the target position to be protected.

Preferably, the above-mentioned working method of the multifunctional suction nozzle: when the distance between the working object and the suction nozzle body changes, on the premise that the pore diameter in the suction nozzle body remains unchanged, the distance between the suction nozzle body and the working object is changed. The distance is adjusted to the preset range.

Beneficial effects achieved by the present invention:

Compared with the prior art, when the nozzle of the present invention is eutectic, the chip light-emitting strip can be avoided, and key parts such as the chip light-emitting strip will not be crushed. The width, depth and offset position of the notch relative to the nozzle body can be adjusted, and the nozzle body adopts a rotatable design. When the incoming chip is inclined, the chip position can be corrected by rotating the nozzle.

The suction nozzle of the invention has high production efficiency, one suction nozzle can be compatible with the production and use of multiple suction nozzles, and the time for changing the suction nozzles and adjusting the equipment is reduced. The suction nozzle of the invention has low cost, one suction nozzle can be used against multiple suction nozzles, and when changing different work objects, it can be applied only within the adjustment range of the notch of the invention.

Description of drawings

Fig. 1 is the overall structure sampling survey drawing one of the present invention;

Fig. 2 is the overall structure sampling survey drawing two of the present invention;

Fig. 3 is a structure diagram of adjusting ring of the present invention;

Fig. 4 is the structure diagram of slotted adjusting arm two of the present invention;

5 is an axial cross-sectional view of the nozzle body of the present invention;

6 is a partial enlarged view of the nozzle body of the present invention (the notch is opened to the maximum state);

Fig. 7 is a partial enlarged view of the nozzle body of the present invention (the notch is inclined toward the two directions of the nozzle body);

Figure 8 is a partial enlarged view of the nozzle body of the present invention 3 (the notch is inclined in one direction of the nozzle body);

Fig. 9 is a partial enlarged view of the nozzle body of the present invention (the notch is opened to the minimum state);

10 is a schematic diagram of the self-rotation working process of the nozzle body of the present invention;

The meaning of the reference signs: 1-adjustment ring one; 2-slotted adjustment arm one; 3-slotted adjustment arm two; 4-slotted adjustment arm three; 5-adjustment ring two; 6-suction nozzle body two; 7 -Nozzle body 1; 8-Rotation adjustment gear; 9-Size adjustment gear; 10-Slotted adjustment gear; 11-Outer cone section 1; 12-Guide rod; 21-Rack 1; 32-Sealing strip; 33-Waist hole; 41-Rack three; 51-External conical segment two; 61-Size adjustment tooth surface; 62-Internal conical segment two; Conical section one; 81-gear bracket one; 91-gear bracket two; 101-gear bracket three; 13-notch; 14-work object; 15-to-be-protected position.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

As shown in Figures 1 to 9: this embodiment discloses a multi-functional suction nozzle: including a suction nozzle body, a suction nozzle body driving device for driving the suction nozzle body to rotate or move axially, and the suction nozzle body includes a suction nozzle The first body 7, the suction nozzle body 2 6, and a plurality of slotted adjustment arms arranged between the suction nozzle body 1 7 and the suction nozzle body 2 6 in sequence, wherein at least three slotted adjustment arms can be placed on the suction nozzle body 1 7, The nozzle body 26 slides independently in the axial direction (the axial direction of the nozzle body) and is locked in a certain position. The so-called independent axial sliding means that any one of the slotted adjustment arms can slide axially independently, and when the When the slotted adjustment arm slides axially, it will not drive other slotted adjustment arms to move. Specifically, the following methods can be used:

This embodiment takes three slotted adjusting arms as an example for detailed description:

The three slotted adjustment arms include a slotted adjustment arm 1 2 , a slotted adjustment arm 2 3 , and a slotted adjustment arm 3 4 that are stacked in sequence, wherein the center of the slotted adjustment arm 2 3 coincides with the central axis of the nozzle body. The slotted adjusting arm one 2, the slotted adjusting arm two 3, and the slotted adjusting arm three 4 are all provided with racks. The rack includes a rack one 21, a rack two 31, and a rack three 41, which are sequentially arranged on the slotted adjustment arm one 2, the slotted adjustment arm two 3, and the slotted adjustment arm three 4, wherein the rack one 21, the rack gear The heights of the second 31 and the third rack 41 relative to the suction nozzle body are sequentially increased. When a certain slotted adjustment arm needs to be driven to slide axially, the corresponding rack in the slotted adjustment arm is driven by the slotted adjustment gear 10 . Wherein, the slotted adjustment gear 10 can be supported by the third gear bracket 101 . When one of the slotted adjustment arms is driven, the remaining slotted adjustment arms are in a locked state. The specific locking method can be reasonably designed by those skilled in the art according to the existing technology. For example, the slotted adjustment that does not need to be adjusted is clamped by a clamping cylinder Alternatively, three slotted adjustment gears 10 can be set on the third gear bracket 101, and the three slotted adjustment gears 10 can rotate independently and mesh with the first rack 21, the second rack 31, and the third rack 41 respectively. When the slotted adjustment arm does not need to be adjusted, the corresponding slotted adjustment gear 10 is in a braking state, and the individual control of the three slotted adjustment gears 10 can be in any manner in the prior art.

In order to meet the requirements of work objects of different sizes, this embodiment further includes an adjustment ring for adjusting the distance between the first suction nozzle body 7 and the second suction nozzle body 6 .

The adjusting ring includes adjusting ring one 1 and adjusting ring two 5 , adjusting ring one 1 is connected to the outer surface of suction nozzle body one 7 , and adjusting ring two 5 is connected to the outer surface of suction nozzle body two 6 . As shown in Figure 5: the first nozzle body 7 and the suction nozzle body two 6 are respectively provided with an inner cone section 1 72, an inner cone section 2 62, an inner cone section 1 72, and the cross section of the inner cone section 2 62 The outer diameter increases or decreases sequentially along the axis direction of the nozzle body, that is to say: the outer surfaces of the inner cone section 1 72 and the inner cone section 2 62 are tapered, and the adjustment ring 1 and the adjustment ring 2 5 are respectively set. There are an outer cone section 11 and an outer cone section 51 which match the outer surfaces of the inner cone section 1 72 and the inner cone section 2 62 . On the other hand, there is an elastic force between the suction nozzle body 2 6 and the suction nozzle body 1 7 to make the suction nozzle body 1 6 and the suction nozzle body 2 7 fit to the adjustment ring 2 5 and the adjustment ring 1 1 respectively. The force can increase the cross-sectional area of the inner channel formed between the suction nozzle body 2 6 and the suction nozzle body 1 7. In the specific design, sealing strips 32 (usually made of rubber material) can be provided on both sides of the slotted adjustment arm 2 3. The strip 32 has two main functions. One is to provide elastic force to the nozzle body two 6 and the nozzle body one 7 to increase the distance between them. When it becomes larger (the diameter of the inner hole of the nozzle body increases), it can compensate for the gap generated by the side of the nozzle body, so that all the slotted adjustment arms and the nozzle body two 6 and the nozzle body one 7 can fit together, and then realize A seal on the side of the nozzle body.

When the suction nozzle body acts on the working object, at least one slotted adjusting arm is not in contact with the working object, and the working object end of the suction nozzle body forms a notch 13 that avoids the position to be protected by the working object.

This embodiment is usually applied to the eutectic process, and the nozzle body absorbs the product through nitrogen, as shown in Figure 10: the work object 14 is provided with strip-shaped light-emitting strips, and these light-emitting strips are the positions to be protected 15. During the eutectic process, the It is necessary to avoid damage to the position 15 to be protected by the nozzle body.

The suction nozzle body driving device includes a rotation adjustment gear 8 for driving the suction nozzle body to rotate with the axis center of the circle and a size adjustment gear 9 for driving the suction nozzle body to slide axially. The matching rotation adjustment tooth surface 71 is provided, and the second suction nozzle body 6 is provided with a size adjustment tooth surface 61 matching with the size adjustment gear 9 . The axis of the size adjustment gear 9 is preferably perpendicular to the axis of the suction nozzle body, while the axis of the rotation adjustment gear 8 is usually parallel to the axis of the suction nozzle body.

It should be noted that when the diameter of the inner hole of the suction nozzle body changes, the magnitude of the change is very small compared to the size of the entire suction nozzle body, which is completely within the elastic range of the sealing strip 32 and will not affect the rotation of the adjusting gear 8 The meshing with the rotation adjusting tooth surface 71 and the meshing between the size adjusting gear 9 and the size adjusting tooth surface 61 . Secondly, the size of the rotating adjusting tooth surface 71 is larger in the axial direction. When the suction nozzle body moves axially, the rotating adjusting gear 8 can always mesh with the rotating adjusting tooth surface 71. Similarly, when the suction nozzle body rotates, the size adjusting gear 9 can always engage with the size adjustment tooth surface 61.

This embodiment also discloses a working method of a multifunctional suction nozzle. During operation, the suction nozzle acts on the work object by suction, which specifically includes the following working conditions:

One: When the suction nozzle is in contact with the working object, at least one slotted adjusting arm is not in contact with the working object, and the working object end of the suction nozzle body forms a notch 13 that avoids the position to be protected by the working object, as follows:

When the suction nozzle is in contact with the working object, at least one slotted adjusting arm is not in contact with the working object, and the working object end of the suction nozzle body forms a notch 13 that avoids the position to be protected by the working object, so that when the suction nozzle absorbs the working object 14, the position 15 to be protected is located inside the slot 13, and the pressing force generated by the adsorption of the suction nozzle body will not damage the position 15 to be protected.

2: When the width of the position to be protected changes, adjust the distance between the slotted adjusting arm or the nozzle body 1 7 and the suction nozzle body 2 6, and make the width of the slot not less than the width of the object to be protected, as follows :

5 , 6 and 9 : when the cross-sectional size of the position to be protected 15 is large, the three slotted adjusting arms are far away from the work object 14 ( FIG. 6 ). As shown in Figure 9: when the outer diameter of the position to be protected 15 is small, the lower ends of the slotted adjustment arm 1 2 and the slotted adjustment arm 3 4 are lowered to be flush with the lower ends of the suction nozzle body 1 7 and the suction nozzle body 2 6 position, the slotted adjusting arm 2 3 slides in the direction of the position to be protected 15 to form the slot 13. The above process is to adjust the size of the slot 13 by controlling the movement of the slotted adjusting arm.

In addition, in this embodiment, the size of the notch 13 can be adjusted by adjusting the distance between the first suction nozzle body 7 and the second suction nozzle body 6, but this adjustment method also changes the diameter of the aperture in the suction nozzle body. Size, specifically: drive the entire nozzle body to slide axially through the size adjustment gear 9; Sliding realized. During the axial sliding process of the entire nozzle body, the relative positions of all the slotted adjusting arms and the nozzle body 1 7 and the nozzle body 2 6 do not change, which together constitute a structurally stable nozzle body. 3 and 4, in some embodiments, guide rods 12 can be provided on the engaging surfaces of the first suction nozzle body 7 and the second suction nozzle body 6, and the guide rods 12 can be at least relative to the first

suction nozzle body

7, 6 and 6. One of the suction nozzle bodies 6 slides axially, all the slotted adjustment arms are provided with waist-shaped holes 33, the axis of the waist-shaped holes 33 is parallel to the axis of the suction nozzle body, and the guide rod 12 passes through all the slotted adjustment arms. The waist-shaped hole 33 does not affect the axial movement of the slotted adjustment arm, and can also fix the slotted adjustment arm. When the distance between the first suction nozzle body 7 and the second suction nozzle body 6 changes, the guide rod 12 can slide axially relative to at least one of the first suction nozzle body 7 and the second suction nozzle body 6 .

3: Combined with Figure 7 and Figure 8: When the working object of the suction nozzle is offset from the central axis of the suction nozzle body, adjust the slotted adjustment arm (adjust the slotted adjustment arm 1 2 and the slotted adjustment arm relatively close to the working object) Adjusting arm two 3 or adjusting slotted adjusting arm three 4 and slotted adjusting arm two 3) is adjusted in the direction away from the work object. When adjusting the adjusting arm 1 2 and adjusting arm 2 3 to move away from the work object, the work object end of the adjusting arm three 4 is flush with the lower end of the nozzle body two 6 (Fig. 8). , when adjusting and adjusting the adjusting arm three 4 and adjusting arm two 3 move in the direction away from the work object, the work object end of the adjusting arm one 2 is flush with the lower end of the nozzle body one 7 (Fig. 7) . Through the above adjustment, the notch 13 avoids the position to be protected 15 . That is to say, the offset of the notch 13 can be realized by adjusting the non-axial position of the slotted adjusting arm.

Four: As shown in Figure 10: E, F, and G in Figure 10 represent the movement trajectory of the nozzle body. When the trajectory of the position to be protected 15 changes, that is to say, the position to be protected 15 is not in a straight line state. At this time In order to ensure that the center line of the notch 13 matches the position to be protected 15, that is, to ensure that the center line of the notch 13 is parallel to the tangent of the trajectory of the position 15 to be protected, it is necessary to rotate the suction nozzle body and make the center line of the notch 13 The angle matches the trajectory of the position 15 of the work object to be protected. The bold dotted line A in FIG. 1 , the bold dotted line B in FIG. 2 , the point C in FIG. 5 , and the bold dotted line D in FIG. 6 all represent the center line of the notch 13 .

Five: When the distance between the operation object 14 and the suction nozzle body changes, on the premise that the inner diameter of the suction nozzle body remains unchanged, adjust the distance between the suction nozzle body and the operation object 14 to a preset range. That is to say, during the axial movement of the suction nozzle body, the adjusting ring moves synchronously with the suction nozzle body.

Compared with the prior art, when the nozzle of the present invention is eutectic, the chip light-emitting strip can be avoided, and key parts such as the chip light-emitting strip will not be crushed. The width, depth and offset position of the notch 13 relative to the suction nozzle body can be adjusted, and the suction nozzle body adopts a rotatable design. When the incoming chip is inclined, the chip position can be corrected by rotating the suction nozzle.

The suction nozzle of the invention has high production efficiency, one suction nozzle can be compatible with the production and use of multiple suction nozzles, and the time for changing the suction nozzles and adjusting the equipment is reduced. The suction nozzle of the present invention has low cost, and one suction nozzle can be used against multiple suction nozzles. When changing different work objects, it only needs to be within the adjustment range of the notch 13 in this embodiment.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be It is regarded as the protection scope of the present invention.

Claims

A multifunctional suction nozzle, characterized in that it includes a suction nozzle body, a suction nozzle body driving device for driving the suction nozzle body to rotate or move axially, and the suction nozzle body includes a suction nozzle body one (7), a suction nozzle The second body (6) and a plurality of slotted adjustment arms arranged in sequence between the first suction nozzle body (7) and the second suction nozzle body (6), wherein at least three of the slotted adjustment arms can be placed on the first suction nozzle body (7). ) and the nozzle body two (6) are independently axially slid and locked in a certain position.
The multifunctional suction nozzle according to claim 1, characterized in that it further comprises a slotted adjustment gear (10), and the slotted adjustment arm comprises a slotted adjustment arm one (2) superimposed in sequence, a slotted adjustment arm The second arm (3), the third slotted adjustment arm (4), the first slotted adjustment arm (2), the second slotted adjustment arm (3), and the third slotted adjustment arm (4) are all provided with racks. When a certain slotted adjustment arm needs to be driven to slide axially, the slotted adjustment gear (10) meshes with the corresponding rack in the slotted adjustment arm.
A multifunctional suction nozzle according to claim 2, characterized in that: further comprising an adjustment ring for adjusting the distance between the first suction nozzle body (7) and the second suction nozzle body (6);

The adjusting ring includes an adjusting ring one (1) and an adjusting ring two (5), the adjusting ring one (1) is connected to the outer surface of the suction nozzle body one (7), and the adjusting ring two (5) is connected to the suction nozzle body Two (6) outer surfaces, the nozzle body one (7) and the nozzle body two (6) are respectively provided with an inner conical section one (72) and an inner conical section two (62). The outer diameter of the cross section of the first section (72) and the second inner conical section (62) increases or decreases sequentially along the axis direction of the nozzle body, and the adjusting ring one (1) and the adjusting ring two (5) are respectively provided with Inner cone section one (72), inner cone section two (62) outer cone section one (11) and outer cone section two (51) whose outer surfaces match;

Between the second suction nozzle body (6) and the first suction nozzle body (7), there are arranged between the first suction nozzle body (6) and the second suction nozzle body (7) to the adjustment ring two (5) and the adjustment ring one (1). ) to fit the elastic force.
The multifunctional suction nozzle according to claim 3, characterized in that: the first suction nozzle body (7) and the second suction nozzle body (6) are connected by a guide rod (12), and all the slotted adjustment arms are connected by a guide rod (12). Both are provided with a waist-shaped hole (33), the guide rod (12) passes through the waist-shaped hole (33), and the two sides of the second slotted adjustment arm (3) are respectively connected to the slotted adjustment arm through a sealing strip (32). One (2), three (4) slotted adjustment arms.
The multifunctional suction nozzle according to claim 1, wherein when the suction nozzle body acts on the working object, at least one slotted adjusting arm does not contact the working object, and the working object end of the suction nozzle body is formed. Avoid the notch where the work object is to be guarded.
The multifunctional suction nozzle according to claim 2, wherein the rack comprises a slotted adjusting arm one (2), a slotted adjusting arm two (3), and a slotted adjusting arm three (3) in sequence. 4) Rack one (21), rack two (31), rack three (41), the rack one (21), rack two (31), rack three (41) are relative to the suction nozzle The height of the body increases sequentially.
The multifunctional suction nozzle according to claim 1, characterized in that: the suction nozzle body driving device comprises a rotation adjusting gear (8) for driving the suction nozzle body to rotate with the axis centering on a circle, and a rotation adjustment gear (8) for driving the suction nozzle A size adjusting gear (9) for the axial sliding of the body;

The first nozzle body (7) is engaged with the rotating adjustment gear (8) through the rotating adjustment tooth surface (71), and the second suction nozzle body (6) is engaged with the size adjustment gear (9) through the size adjustment tooth surface (61). .
A working method of a multifunctional suction nozzle, characterized in that:

When the suction nozzle is in contact with the working object, at least one slotted adjusting arm is not in contact with the working object, and the working object end of the suction nozzle body forms a notch that avoids the position to be protected by the working object;

When the width of the position to be protected changes, adjust the distance between the slotted adjusting arm or the nozzle body 1 and the nozzle body 2, and make the width of the slot not less than the width of the position to be protected;

When the central axis of the work object and the nozzle body deviates, adjust the slotted adjusting arm that is relatively close to the work object to the direction away from the work object, and keep the notch away from the position to be protected;

When the trajectory of the position to be protected changes, rotate the nozzle body and make the angle of the center line of the notch match the trajectory of the target position to be protected.
The working method of a multifunctional suction nozzle according to claim 8, characterized in that: when the distance between the working object and the suction nozzle body changes, on the premise that the inner diameter of the suction nozzle body remains unchanged, the suction nozzle The distance between the mouth body and the working object is adjusted to a preset range.