TWM641255U - Adsorption device - Google Patents

Abstract

An adsorption device comprising a support mechanism and an adsorption mechanism, the support mechanism comprising a cover plate, a first support plate and a second support plate, the cover plate having a vacuum groove recessed on one of the side surfaces toward the first support plate, the adsorption mechanism comprising a plurality of adsorption members, each of which is slidably and restrictively connected to the second support plate in the first direction, each of which is also connected to the vacuum groove, the adsorption members sliding in the first direction according to the shape of the product The adsorption end of the adsorption member is also used to adsorb the product after the adsorption member adaptively slides. In the above adsorption device, the adsorption member is adapted to slide in the first direction according to the shape of the product to make the adsorption end of the adsorption member adhere to the surface of the product and adsorb the product, so that the adsorption device can improve the adsorption effect of the adsorption device.

Description

Adsorption device

The present application relates to the field of jig processing, in particular to an adsorption device.

Conventional adsorption devices cannot adapt to changes when adsorbing non-planar surfaces on products. Air suction or leakage is likely to occur during the adsorption process of products, and the adsorption effect is not good.

In view of this, it is necessary to provide an adsorption device that can improve the adsorption effect.

An embodiment of the present application provides an adsorption device for adsorbing products. The adsorption device includes a support mechanism and an adsorption mechanism. The support mechanism includes a cover plate, a first support plate, and a second support plate arranged in sequence along a first direction. The cover plate is in contact with the first support plate, and a vacuum groove is recessed on one side surface of the cover plate facing the first support plate. The vacuum groove is used to communicate with external vacuum equipment to form a negative pressure. The first support plate and the second support plate The plates are arranged at intervals, the adsorption mechanism includes a plurality of adsorption parts, each of the adsorption parts is slidably limited and connected to the second support plate along the first direction, each of the adsorption parts is also connected to the vacuum groove, and each of the adsorption parts The adsorption end is set away from the first support plate, the adsorption end of the adsorption part is used to contact the product, and the adsorption part is adaptively slid in the first direction according to the shape of the product, so that the adsorption end of the adsorption part is attached to the product surface and absorb the product.

The technical effect included in the embodiments of the present application: In the above-mentioned adsorption device, the adsorption part slides adaptively in the first direction according to the shape of the product, so that the adsorption end of the adsorption part can be attached to the product. The surface of the product and the adsorption of the product facilitate the adsorption device to adsorb the non-planar surface of the product, reduce the risk of air suction or leakage during the adsorption process, and improve the adsorption effect of the adsorption device.

Optionally, in some embodiments of the present application, the adsorption member includes an air pipe, a connecting pipe and a suction nozzle, the air pipe communicates with the vacuum groove and the connecting pipe, the connecting pipe is slidably connected to the second support plate, and the suction nozzle It is connected to the end of the connecting pipe away from the first support plate for absorbing products.

Optionally, in some embodiments of the present application, the first support plate is provided with a plurality of first connecting holes communicating with the vacuum groove, the end of the gas pipe away from the connecting pipe is connected to the first connecting holes, and the adsorption device also includes A seal, the seal is connected between the cover plate and the first support plate, the seal is provided with a profiling hole, along the first direction, the projection of the profiling hole overlaps with the projection of the product, the seal Used to seal the first connecting hole outside the profiling hole.

The technical effects included in the embodiments of the present application: by setting the sealing member, a profiling hole matching the shape of the product is provided on the sealing member, and when the external vacuum equipment pumps air to the air pipe, the profiling hole is exposed The air tube in the air tube can be sucked by the external vacuum equipment, so that the adsorbent at the end of the air tube can absorb the product.

Optionally, in some embodiments of the present application, the connecting pipe includes a first connecting portion and a second connecting portion, a plurality of second connecting holes are provided on the second support plate, and one end of the first connecting portion extends into the second connecting hole and connected to the air pipe, one end of the second connecting part is connected to the end of the first connecting part away from the air pipe, the other end of the second connecting part is connected to the suction nozzle, along the first direction, the first The projection of the connection portion and the projection of the second connection hole are respectively located within the projection range of the second connection portion.

The technical effect included in the embodiments of the present application: By setting the first connecting part and the second connecting part, the air pipe can be communicated with the suction nozzle, and at the same time, the first connecting part is slidably connected to the second support plate, so that the The connecting pipe can drive the adsorption piece to better contact the adsorption product and improve the adsorption capacity.

Optionally, in some embodiments of the present application, the adsorption device further includes a limit mechanism, the limit mechanism is connected to the second support plate, the limit mechanism includes a limit piece and a resisting piece, the limit piece It is connected with the abutting piece on the side of the second supporting plate away from the first supporting plate, and the limiting piece and the abutting piece are surrounded by On the peripheral side of the adsorption mechanism, the resisting member can slide relative to the limiter along the second direction, the second direction is perpendicular to the first direction, and the resisting member is used to move the adsorbing member toward the The limit piece is pressed against the limit.

Optionally, in some embodiments of the present application, the limiting member includes a first limiting part, a second limiting part, a third limiting part and a fourth limiting part connected in sequence, and the first limiting part The part is set opposite to the second limit part, the third limit part is set opposite to the fourth limit part, and the first limit part, the second limit part, the third limit part and the fourth limit part are surrounded by A receiving space is formed, the resisting member is slidably connected to the fourth limiting portion along the second direction, the connecting pipe is located in the receiving space, and the resisting member is used to tightly restrict the connecting pipe in the receiving space.

Optionally, in some embodiments of the present application, the second connecting portion is located in the accommodating space, and a plurality of the second connecting portions abut against each other, so as to be driven by the abutting member to tighten the limit. located in the containment space.

Optionally, in some embodiments of the present application, the first limiting part, the second limiting part and the third limiting part are integrally formed.

The technical effect included in the embodiments of the present application: the resisting member resists the second connecting portion located in the accommodation space, and when the product is adsorbed by the adsorption end, the resisting member resists and limits the adsorbing member, reducing the adsorption The situation that the part shakes when absorbing the product, thereby improving the stability of the absorbing part when absorbing the product.

Optionally, in some embodiments of the present application, the limiting mechanism further includes a driving part, the driving end of which is connected to the resisting part, and the driving part includes a driving part and a driving rod, and the driving part is connected to the second The four limiting parts are away from one side of the third limiting part, one end of the driving rod is connected to the driving end of the driving part, and the other end of the driving rod passes through the fourth limiting part and is connected to the resisting piece.

The technical effect included in the embodiments of the present application: by setting the absorber in the accommodation space, the range of motion of the absorber is limited, and after the absorber absorbs the product, the resisting member is placed on the drive rod Driven by it, it passes through the fourth limiting part to resist the position-limiting adsorption part, reducing the risk of movement of the adsorption part, thereby reducing the occurrence of shaking when the adsorption part absorbs the product.

Optionally, in some embodiments of the present application, a through hole is opened on the fourth limiting portion, the driving rod passes through the through hole and extends toward the accommodating space along the second direction, and the fourth limiting portion faces the third One side surface of the limiting part is concavely provided with a receiving groove, and the receiving groove is used to accommodate the abutting piece.

The technical effect included in the embodiments of the present application: When the absorbing part does not need to absorb products, the driving rod drives the supporting part back into the accommodating groove, reducing the occupied area of the accommodating part occupied by the supporting part, so as to improve the The activity space of the adsorbent in the accommodation space.

100: adsorption device

10: Products

20: Support mechanism

21: cover plate

211: vacuum tank

212: sealed space

213: vacuum hole

22: The first support plate

221: the first connection hole

23: Second support plate

231: the second connection hole

24: support rod

25: Piping space

30: Adsorption mechanism

31: Adsorption parts

311: Trachea

312: connecting pipe

3121: the first connecting part

3122: the second connecting part

313: Adsorption nozzle

32: Connector

33: sealing ring

40: Seals

41: Profiling hole

50: limit mechanism

51: limit piece

511: The first limit part

512: The second limit part

513: The third limit part

514: The fourth limit part

5141: Through hole

5142: holding slot

515: storage space

52: Resisting piece

53: Driver

531: drive unit

532: drive rod

60: platform

Z: the first direction

X: the second direction

Fig. 1 shows a schematic structural view of an adsorption device of an embodiment.

Fig. 2 is a schematic diagram showing the structure of an adsorbent of an embodiment.

Fig. 3 shows a schematic structural view of a sealing member of an embodiment.

FIG. 4 shows a schematic structural view of a cover plate of an embodiment.

FIG. 5 shows a schematic structural view of a limiting member of an embodiment.

Fig. 6 shows a schematic view of the structure of a connecting pipe of an embodiment.

FIG. 7 shows a schematic structural view of a driving member of an embodiment.

Fig. 8 shows a schematic diagram of adsorption by an adsorption device of an embodiment.

The following will describe the technical solutions in the embodiments of the application with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all of them.

It should be noted that when an element is referred to as being "mounted on" another element, it may be directly on the other element or may be present in an intervening element. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or it may also be present on intervening elements.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the application is only for the purpose of describing specific embodiments and is not intended to limit the application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

It can be understood that, when describing the parallel/perpendicular arrangement of two elements, the included angle between the two elements is allowed to have a tolerance of ±10% relative to the standard parallel/perpendicular.

An embodiment of the present application provides an adsorption device for adsorbing products, and the adsorption device includes a support mechanism and an adsorption mechanism. The support mechanism includes a cover plate, a first support plate and a second support plate arranged in sequence along the first direction, and the cover plate connects with the first support plate. The cover plate is recessed with a vacuum groove facing one side surface of the first support plate, and the vacuum groove is used to communicate with external vacuum equipment to form a negative pressure, and the first support plate is spaced apart from the second support plate. The adsorption mechanism includes a plurality of adsorption parts, each of which is slidably limited and connected to the second support plate along the first direction, and each of the adsorption parts is also connected to the vacuum groove, and the adsorption end of each of the adsorption parts is away from the first A supporting board is provided. The adsorption end of the adsorption part is used to contact the product, and the adsorption part slides adaptively in the first direction according to the shape of the product, so that the adsorption end of the adsorption part is attached to the surface of the product and absorbs the product.

In the above-mentioned adsorption device, the adsorption part slides adaptively in the first direction according to the shape of the product, so that the adsorption end of the adsorption part is attached to the surface of the product and absorbs the product, so that the adsorption device can absorb non-planar surfaces on the product. The surface of the adsorption device reduces the risk of air suction or leakage during the adsorption process, and improves the adsorption effect of the adsorption device.

Some embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

Please refer to FIG. 1 and FIG. 2 together. The adsorption device 100 provided by the embodiment of the present application is used to adsorb a product 10 . The adsorption device 100 includes a support mechanism 20 and an adsorption mechanism 30 . The support mechanism 20 includes a cover plate 21 , a first support plate 22 and a second support plate 23 sequentially arranged along the first direction Z, and the cover plate 21 is in contact with the first support plate 22 . The cover plate 21 is concavely provided with a vacuum groove 211 facing one side surface of the first support plate 22, and the vacuum groove 211 is used to communicate with an external vacuum device (not shown in the figure) to form a negative pressure. The first support plate 22 and the second support plate The two support plates 23 are arranged at intervals. The suction mechanism 30 includes a plurality of suction pieces 31, each of which is slidably limited and connected to the second support plate 23 along the first direction Z, and each of the suction pieces 31 is also connected to a vacuum groove 211, each of which The suction end of the suction piece 31 is disposed away from the first support plate 22 . The adsorption end of the adsorption part 31 is used to contact the product 10, and the adsorption part 31 is adaptively slid in the first direction Z according to the shape of the product 10, so that the adsorption end of the adsorption part 31 is attached to the surface of the product 10 And adsorption product 10.

In the above adsorption device 100, the adsorption part 31 is adaptively slid in the first direction Z according to the shape of the product 10, so that the adsorption end of the adsorption part 31 is attached to the surface of the product 10 and adsorbs the product 10, which facilitates the The adsorption device 100 adsorbs the non-planar surface of the product 10 , reduces the risk of air suction or leakage during the adsorption process, and improves the adsorption effect of the adsorption device 100 .

Please refer to FIG. 1 , in this embodiment, the process of adaptive sliding of the adsorbent 31 in the first direction Z according to the shape of the product 10 is as follows: a plurality of the ends of the adsorbent 31 close to the product 10 are initially at an even position. When the absorber 31 absorbs the product 10, the absorber 31 slides on the higher surface of the product 10 toward the first support plate 22 for a long distance, and the absorber 31 slides on the lower surface of the product 10. On the other hand, the sliding distance of the absorbing member 31 toward the first support plate 22 is short.

Please refer to FIG. 1 and FIG. 2 again. In some embodiments, the adsorption member 31 includes an air pipe 311, a connecting pipe 312 and a suction nozzle 313. The air pipe 311 communicates with the vacuum chamber 211 and the connecting pipe 312. connected to the second support plate 23 . The suction nozzle 313 is connected to an end of the connecting pipe 312 away from the first support plate 22 for absorbing the product 10 .

Please refer to FIG. 1, FIG. 2 and FIG. 3 together. In some embodiments, the first support plate 22 is provided with a plurality of first connection holes 221 communicating with the vacuum groove 211, and the end of the gas pipe 311 is away from the connection pipe 312. communicate with the first connection hole 221 . The adsorption device 100 also includes a seal 40, the seal 40 is hermetically connected Connected between the cover plate 21 and the first support plate 22, the sealing member 40 is provided with a profiling hole 41 (refer to FIG. 3 ). Along the first direction Z, the projection of the profiling hole 41 overlaps with the projection of the product 10 , the sealing member 40 is used to seal the first connection hole 221 outside the profiling hole 41 . By setting the sealing member 40, a profiling hole 41 matching the shape of the product 10 is set on the sealing member 40, and when the external vacuum equipment pumps air to the air pipe 311, the air pipe 311 exposed in the profiling hole 41 can be received by the outside. The suction force of the vacuum equipment, so that the suction nozzle 313 at the end of the air pipe 311 can absorb the product 10 .

Please refer to FIG. 1 and FIG. 2 again. In some embodiments, the connecting pipe 312 includes a first connecting portion 3121 and a second connecting portion 3122. The second support plate 23 is provided with a plurality of second connecting holes 231. One end of the first connecting part 3121 extends into the second connecting hole 231 and connects to the air pipe 311, one end of the second connecting part 3122 is connected to the end of the first connecting part 3121 away from the air pipe 311, and the other end of the second connecting part 3122 Connected to the suction nozzle 313. Along the first direction Z, the projection of the first connecting portion 3121 and the projection of the second connecting hole 231 are respectively located within the projection range of the second connecting portion 3122 . By setting the first connecting part 3121 and the second connecting part 3122, the gas pipe 311 can be communicated with the suction nozzle 313, and at the same time, the first connecting part 3121 is slidably connected to the second support plate 23, so that the connecting pipe 312 can be Drive the adsorption member 31 to better contact the adsorption product 10 to improve the adsorption capacity.

Please continue to refer to FIG. 1 and FIG. 2 , in some embodiments, the adsorption mechanism 30 further includes a connecting piece 32 , one end of the connecting piece 32 is connected to the air pipe 311 , and the other end of the connecting piece 32 extends into the first connecting hole 221 Inside, it is used to connect the air pipe 311 to the first support plate 22 . By arranging the connecting piece 32 and the connecting pipe 312 , the air pipe 311 can be installed between the first support plate 22 and the second support plate 23 , and the stability of the air pipe 311 in the adsorption process can be improved.

Please refer to FIG. 1 again, in some embodiments, the support mechanism 20 further includes a plurality of support rods 24 . A pipe space 25 is formed between the first support plate 22 and the second support plate 23, the plurality of support rods 24 are arranged at intervals along the circumference of the first support plate 22 and the second support plate 23, and a plurality of the air pipes 311 are connected to Between the first support plate 22 and the second support plate 23 , the air pipe 311 is located in the piping space 25 . By the first support plate 22 and the second support plate 23 arranged at intervals, the first support plate 22 and the second support plate A piping space 25 is formed between 23 for supporting and accommodating a plurality of air pipes 311 to improve the stability of the connection between the air pipes 311 and the supporting mechanism 20 .

Please refer to FIG. 1 , FIG. 3 and FIG. 4 together. In some embodiments, a sealed space 212 is formed between the vacuum groove 211 and the first support plate 22 . The cover plate 21 is provided with a vacuum hole 213 communicating with the sealed space 212 , and the vacuum hole 213 is communicated with an external vacuum device for pumping air from the air tube 311 exposed in the sealed space 212 . By setting the vacuum hole 213 on the cover plate 21, when the cover plate 21 is connected with the sealing member 40 and the first supporting plate 22, the external vacuum equipment will match the profiling hole 41 in the sealed space 212 through the vacuum hole 213. The trachea 311 in the middle carries out air extraction.

In some embodiments, the sealing member 40 can be replaced according to the shape of the product 10 , so as to realize the profiling holes 41 of different shapes, so as to absorb products of different shapes, and improve the versatility of the adsorption device 100 .

Please refer to FIG. 1 and FIG. 2 again, in some embodiments, the adsorption mechanism 30 further includes a sealing ring 33 . The sealing ring 33 is located in the second connecting hole 231 , and the sealing ring 33 is sheathed and connected to the outer wall of the connecting tube 312 near the end of the air tube 311 . By disposing the sealing ring 33 in the second connection hole 231 , the airtightness of the gas pipe 311 is improved during the process of absorbing the product 10 .

Please continue to refer to FIG. 1 and FIG. 2 , in some embodiments, the suction device 100 further includes a limiting mechanism 50 connected to the second support plate 23 . The limiting mechanism 50 includes a limiting member 51 and an abutting member 52, the limiting member 51 and the abutting member 52 are connected to the side of the second supporting plate 23 away from the first supporting plate 22, and the limiting member 51 and the The resisting member 52 is disposed around the adsorption mechanism 30 . The resisting member 52 can slide relative to the limiting member 51 along the second direction X, the second direction X is perpendicular to the first direction Z, and the resisting member 52 is used to move the adsorbing member 31 to 31 is pressed against the limiter 51 toward the limiter.

Please refer to FIG. 2 and FIG. 5 together. In some embodiments, the limiting member 51 includes a first limiting part 511, a second limiting part 512, a third limiting part 513 and a fourth limiting part connected in sequence. Section 514. The first limiting portion 511 is opposite to the second limiting portion 512 , and the third limiting portion 513 is opposite to the fourth limiting portion 514 . The first limiting part 511, the second limiting part 512, the third limiting part 513 and the fourth limiting part The position portion 514 surrounds and forms a receiving space 515 , and a part of the connecting pipe 312 is located in the receiving space 515 . The resisting member 52 is slidably connected to the fourth limiting portion 514 along the second direction X, the connecting pipe 312 is located in the receiving space 515 , and the resisting member 52 is used to tightly restrict the connecting pipe 312 in the receiving space 515 Inside.

Please refer to FIG. 2 , FIG. 5 and FIG. 6 together. In some embodiments, the second connecting portion 3122 is located in the accommodating space 515 , and a plurality of the second connecting portions 3122 are in contact with each other, for Driven by the abutting member 52 , the abutment is confined within the accommodating space 515 . The resisting part 52 resists the adsorbing part 31 located in the accommodation space 515, and when the product 10 is adsorbed at the adsorption end, the resisting part 52 resists and limits the adsorbing part 31, reducing the adsorption part 31 on the adsorbing product 10. Occurrence of shaking from time to time, thereby improving the stability of the adsorbent 31 when adsorbing the product 10 .

Please refer to FIG. 5 , in some embodiments, the first limiting portion 511 , the second limiting portion 512 and the third limiting portion 513 are integrally formed.

Please refer to FIG. 1 , FIG. 5 and FIG. 7 together. In some embodiments, the limiting mechanism 50 further includes a driving part 53 , and the driving end of the driving part 53 is connected to the resisting part 52 . The driving member 53 includes a driving part 531 and a driving rod 532 , the driving part 531 is connected to a side of the fourth limiting part 514 away from the third limiting part 513 . One end of the driving rod 532 is connected to the driving end of the driving portion 531 , and the other end of the driving rod 532 passes through the fourth limiting portion 514 and is connected to the resisting member 52 . By arranging the absorber 31 in the accommodation space 515, the range of motion of the absorber 31 is limited. After the absorber 31 absorbs the product 10, the resisting member 52 passes through the fourth limit driven by the driving rod 532. The position portion 514 resists the position-limiting adsorbent 31 to reduce the risk of movement of the adsorbent 31 , thereby reducing the occurrence of shaking when the adsorbent 31 absorbs the product 10 .

Please continue to refer to FIG. 1 , FIG. 5 and FIG. 7 , in some embodiments, a through hole 5141 is opened on the fourth limiting portion 514 . The driving rod 532 passes through the through hole 5141 and extends toward the receiving space 515 along the second direction X. The fourth limiting part 514 is recessed with a receiving groove 5142 on one side surface facing the third limiting part 513. The receiving groove 5142 is used for To accommodate the supporting member 52 . When the absorber 31 does not need to absorb the product 10, the drive rod 532 drives the holding member 52 back into the receiving groove 5142, reducing the area occupied by the holding member 52 in the receiving space 515, so as to increase the size of the receiving space 515. The activity space of the inner adsorption part 31.

Please refer to Fig. 1, Fig. 2, Fig. 3 and Fig. 8 together, the adsorption device 100 includes the following steps in the process of adsorbing the product 10: S1, first place the product 10 to be adsorbed on the platform 60 or jig (in the figure not shown); S2, the adsorption device 100 is transferred until it touches the product 10 and then moves toward the product 10 for a certain distance, so as to fully contact the surface of the product 10; S3, the vacuum of the external vacuum device is turned on, the The suction nozzles 313 connected to the air pipe 311 will absorb the surface of the product 10 according to the shape of the profiling hole 41 (see FIG. 3 ) in the sealing member 40; To resist the connecting pipe 312 in the limiting member 51, so that each suction nozzle 313 stays at the suction position on the product 10 after fixed contact.

Those of ordinary skill in the art should realize that the above embodiments are only used to illustrate the present application, rather than to limit the present application. Alterations and variations are within the scope of the disclosure of this application.

100: adsorption device

10: Products

20: Support mechanism

21: cover plate

22: The first support plate

23: Second support plate

24: support rod

25: Piping space

30: Adsorption mechanism

31: Adsorption parts

311: Trachea

312: connecting pipe

313: Adsorption nozzle

40: Seals

50: limit mechanism

51: limit piece

53: Driver

Z: the first direction

X: the second direction

Claims (10)

An adsorption device for adsorbing products. The improvement is that the adsorption device includes a support mechanism and an adsorption mechanism. The support mechanism includes a cover plate, a first support plate and a second support plate arranged in sequence along the first direction. The cover plate Connected with the first support plate, a vacuum groove is recessed on one side surface of the cover plate facing the first support plate, and the vacuum groove is used to communicate with external vacuum equipment to form a negative pressure. The first support plate is spaced from the second support plate Set, the adsorption mechanism includes a plurality of adsorption parts, each of the adsorption parts is slidably limited and connected to the second support plate along the first direction, each of the adsorption parts is also connected to the vacuum groove, and the adsorption end of each of the adsorption parts Set away from the first support plate, the adsorption end of the adsorption part is used to contact the product, and the adsorption part slides adaptively in the first direction according to the shape of the product, so that the adsorption end of the adsorption part is attached to the surface of the product And adsorb the product. The adsorption device as described in claim 1, wherein the adsorption member includes a gas pipe, a connecting pipe and a suction nozzle, the gas pipe communicates with the vacuum chamber and the connecting pipe, the connecting pipe is slidably connected to the second support plate, and the suction nozzle is connected to The end of the connecting pipe away from the first support plate is used for absorbing products. The adsorption device according to claim 2, wherein the first support plate is provided with a plurality of first connection holes communicating with the vacuum groove, the end of the gas pipe away from the connection pipe is connected to the first connection holes, and the adsorption device also includes a sealing The seal is connected between the cover plate and the first support plate, and the seal is provided with a profiling hole. Along the first direction, the projection of the profiling hole overlaps with the projection of the product. The seal is used To seal the first connecting hole outside the profiling hole. The adsorption device according to claim 3, wherein the connecting pipe includes a first connecting part and a second connecting part, and a plurality of second connecting holes are provided on the second supporting plate, and one end of the first connecting part extends into The second connecting hole is connected to the air pipe, one end of the second connecting part is connected to the end of the first connecting part away from the air pipe, and the other end of the second connecting part is connected to the suction nozzle. Along the first direction, the first connecting part The projection of the portion and the projection of the second connection hole are respectively located within the projection range of the second connection portion. The adsorption device as described in claim 4, wherein the adsorption device further includes a limit mechanism, the limit mechanism is connected to the second support plate, the limit mechanism includes a limit piece and a resisting piece, the limit mechanism The part and the abutting part are connected to the side of the second supporting plate away from the first supporting plate, and the limiting part and the abutting part are arranged around the surrounding side of the adsorption mechanism, and the abutting part can be moved along the second side relative to the limiting part. slide in one direction, the second direction is perpendicular to the first direction, and the resisting member is used to push the absorbing member toward the limiting member to tighten the limit after the absorbing member is adaptively slid. The adsorption device according to claim 5, wherein the limiting member includes a first limiting part, a second limiting part, a third limiting part and a fourth limiting part connected in sequence, and the first limiting part Set opposite to the second limit part, the third limit part is set opposite to the fourth limit part, the first limit part, the second limit part, the third limit part and the fourth limit part surround An accommodating space is formed, the resisting member is slidably connected to the fourth limiting portion along the second direction, the connecting pipe is located in the accommodating space, and the abutting member is used for restricting the connecting pipe in the accommodating space. The adsorption device according to claim 6, wherein the second connection part is located in the accommodation space, and a plurality of the second connection parts are in contact with each other, and are used to be pressed and limited by the driving of the supporting part. within the accommodation space. The adsorption device according to claim 6, wherein the first limiting part, the second limiting part and the third limiting part are integrally formed. The suction device according to claim 6, wherein the limit mechanism further includes a driving part, the driving end of which is connected to the resisting part, and the driving part includes a driving part and a driving rod, and the driving part is connected to the fourth The limiting part is away from one side of the third limiting part, one end of the driving rod is connected to the driving end of the driving part, and the other end of the driving rod passes through the fourth limiting part and is connected to the resisting piece. The adsorption device according to claim 9, wherein a through hole is opened on the fourth limiting part, the driving rod passes through the through hole and extends toward the accommodation space along the second direction, and the fourth limiting part faces the third limiting part. One side surface of the bit portion is concavely provided with a receiving groove, and the receiving groove is used to accommodate the supporting member.

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