CN111168360B

CN111168360B - Nut picking jig and nut assembling method

Info

Publication number: CN111168360B
Application number: CN202010037754.XA
Authority: CN
Inventors: 胡伟国; 张轲; 陈栋; 张海明; 杨鹤
Original assignee: Luxshare Intelligent Manufacture Zhejiang Co Ltd
Current assignee: Luxshare Intelligent Manufacture Zhejiang Co Ltd
Priority date: 2020-01-14
Filing date: 2020-01-14
Publication date: 2020-11-24
Anticipated expiration: 2040-01-14
Also published as: CN111168360A

Abstract

The application discloses a nut picking jig and a nut assembling method, wherein the nut picking jig comprises an adsorption sleeve, a push pin and a moving mechanism, the adsorption sleeve is provided with an adsorption through hole and a first air suction hole, and the first air suction hole is communicated with the adsorption through hole; the push pin is movably arranged in the adsorption perforation and is provided with a connecting end and an adsorption end; the moving mechanism is connected with the connecting end of the push pin and drives the push pin to move in the adsorption perforation. The nut of equipment is treated through pushing away the needle absorption to the nut that the tool was picked up to this application, picks up tool to nut equipment station through removing the nut after that, and the adsorbed nut of pushing away the needle is placed on nut equipment station, and moving mechanism promotes the pushing away needle at last, and the pushing away needle promotes the nut and embolias on the nut equipment station. The push pin is driven by the moving mechanism to move in the adsorption through hole, and when the nut is assembled on the workpiece, the push pin pushes the nut to be sleeved into the workpiece in a flapping mode, so that the nut is ensured to be firmly fixed on the workpiece, and the assembly efficiency is effectively improved.

Description

Nut picking jig and nut assembling method

Technical Field

The application relates to the technical field of nut assembly, in particular to a nut picking jig and a nut assembly method.

Background

At present, the design of parts in the electronic product manufacturing industry tends to be more and more fine and tiny, the shapes of the parts are complex and irregular, the production cost of a single part is greatly improved by an ultra-precision machining process, and the requirement on the appearance grade of the part is strict. Along with the product equipment cooperation tolerance is less for getting of nut is got and is put the degree of difficulty and multiply. The picking and placing stability of the existing nut suction mechanism can not meet the field production condition, and the existing nut suction mechanism can easily lift the nut assembled on a workpiece after the nut is removed after the assembly is finished, so that the nut needs to be reassembled, and the assembly efficiency is greatly reduced.

Disclosure of Invention

The embodiment of the application provides a nut picking jig and a nut assembling method, and solves the problem that a nut assembled on a workpiece is taken up after the nut sucking mechanism is easy to assemble at present.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, a nut picking jig is provided, which includes: the adsorption sleeve is provided with an adsorption through hole and a first air suction hole, and the first air suction hole is communicated with the adsorption through hole; the push pin is movably arranged in the adsorption perforation and is provided with a connecting end and an adsorption end; the moving mechanism is connected with the connecting end of the push pin and drives the push pin to move in the adsorption perforation; wherein the moving mechanism includes: the fixing support comprises a fixing plate and a supporting frame piece, the supporting frame piece is arranged on the fixing plate, an accommodating space is formed between the supporting frame piece and the fixing plate, the adsorption sleeve and the push pin are arranged in the accommodating space, one end, far away from the connecting end of the push pin, of the adsorption sleeve is arranged on the fixing plate, and the adsorption through hole is exposed out of the fixing plate; the driver is arranged on the supporting frame piece, and the driving end of the driver faces the accommodating space and is connected with the connecting end; the movable seat is arranged in the accommodating space and is positioned between the driver and the push pin, and the driving end of the driver and the connecting end of the push pin are respectively connected with the movable seat.

In a second aspect, there is provided a nut assembling method using the nut picking jig according to the first aspect, the nut assembling method including: the adsorption end of the push pin adsorbs the nut to be assembled; moving the nut picking jig and carrying the nuts; the nut picks up the tool and removes to nut equipment station, and the nut that the adsorption end was adsorbed is placed on nut equipment station: the moving mechanism drives the push pin, and the push pin pushes the nut to be sleeved into the nut assembling station: the nut picking jig is moved to be away from the nut assembling station.

In this application embodiment, drive the push pin through moving mechanism and remove in adsorbing the perforation, realize when the nut is assembled in the work piece that the push pin promotes the nut with patting the mode and accurately embolias the work piece, ensure that the nut is fixed in on the work piece firmly, can not take up the nut when the nut picks up the tool and breaks away from the work piece, effectively promote packaging efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a perspective view of a nut picking jig according to an embodiment of the present application;

fig. 2 is an exploded view of a nut picking jig according to an embodiment of the present application;

fig. 3 is a bottom view of a nut picking jig according to an embodiment of the present application;

FIG. 4 is a cross-sectional view taken along line A-A' of FIG. 3;

FIG. 5 is an enlarged view of area A of FIG. 4;

FIG. 6 is a flow chart of a nut assembly method according to an embodiment of the present application;

fig. 7 to 11 are schematic flow charts illustrating a nut assembling method according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, which are a perspective view, an exploded view, a bottom view, a cross-sectional view along a line a-a' in fig. 3 and an enlarged view of a region a in fig. 4 of a nut picking jig according to an embodiment of the present application; as shown in the drawings, the nut picking jig 1 of the embodiment includes an absorption sleeve 10, a push pin 11 and a moving mechanism 12, the absorption sleeve 10 has an absorption through hole 101 and a first air suction hole 102, the first air suction hole 102 is communicated with the absorption through hole 101, in the embodiment, the absorption sleeve 10 has an upper surface 10a, a lower surface 10b and a side surface 10c, the upper surface 10a is opposite to the lower surface 10b, and the side surface 10c is located between the upper surface 10a and the lower surface 10 b. The suction through hole 101 penetrates through the upper surface 10a and the lower surface 10b, the extending direction of the suction through hole 101 is orthogonal to the upper surface 10a and the lower surface 10b, one end of the first suction hole 102 is connected with the suction through hole 101, the other end of the first suction hole penetrates through the side surface 10c, and the extending direction of the first suction hole 102 is inclined relative to the extending direction of the suction through hole 101, so that an included angle is formed between the extending direction of the suction through hole 101 and the extending direction of the first suction hole 102, and thus, the space for connecting the first suction hole 102 with the suction through hole 101 is large, the vacuum suction value can be improved, and meanwhile, the processing of the first suction hole 102 is facilitated.

The push pin 11 is movably disposed in the suction through hole 101, that is, the push pin 11 can move in the suction through hole 101. The push pin 11 has a connection end 11a and an absorption end 11b, when the push pin 11 is movably disposed in the absorption through hole 101, the connection end 11a of the push pin 11 penetrates out from the upper surface 10a of the absorption sleeve 10, and the absorption end 11b of the push pin 11 is close to the lower surface 10b of the absorption sleeve 10. The moving mechanism 12 is disposed on one side of the upper surface 10a of the suction sleeve 10 and connected to the connecting end 11a of the push pin 11, and the moving mechanism 12 can drive the push pin 11 to move in the suction through hole 101.

Please refer to fig. 6 and fig. 7 to fig. 11, which are a flowchart and a schematic flow chart of a nut assembling method according to an embodiment of the present application; as shown in the figure, the method for assembling the nut by using the nut picking jig 1 of the embodiment is to perform the step S10, and the adsorption end 11b of the push pin 11 adsorbs the nut 2 to be assembled, in this step, the nut picking jig 1 is moved to the nut feeding station 3 by the external transmission mechanism, the nut feeding station 3 enters the adsorption through hole 101, the nut 2 to be assembled is provided on the nut feeding station 3, and the nut 2 is located in the adsorption through hole 101, as shown in fig. 7. Nut feed station 3 has locating pin 31, treats that the nut 2 cover of equipment locates on locating pin 31, and tool 1 is picked up to outside transmission device removal nut to the image positioning nut who shoots through the camera picks up tool 1 on the locating pin 31 of nut feed station 3, gets into from the lower surface 10b that adsorbs sleeve 10 and adsorbs perforation 101 with the locating pin 31 of guide nut feed station 3. After the nut 2 on the positioning pin 31 of the nut feeding station 3 enters the adsorption through hole 101, the external vacuum device is connected to the first air-extracting hole 102, and the external vacuum device extracts the air in the adsorption through hole 101 through the first air-extracting hole 102, so that the interior of the adsorption through hole 101 is in a vacuum state, and the adsorption end 11b of the push pin 11 adsorbs the nut 2 from the positioning pin 31 of the nut feeding station 3, as shown in fig. 8.

Next, step S11 is executed to move the nut picking jig 1 by the external transmission mechanism and convey the nut 2 located in the nut picking jig 1. Then, step S12 is executed, the nut picking jig 1 moves to the nut assembling station 4, the nut 2 adsorbed by the adsorbing end 11b of the push pin 11 is placed at the nut assembling station 4, wherein the nut assembling station 4 has the workpiece 41 to be assembled, and the nut 2 adsorbed by the adsorbing end 11b of the push pin 11 is the workpiece 41 to be assembled sleeved on the nut assembling station 4, as shown in fig. 9. When the nut adsorbed by the adsorption end 11b of the push pin 11 is placed on the workpiece 41 to be assembled, the external vacuum device stops extracting the gas in the adsorption through hole 101 and the first suction hole 102, so that the adsorption end 11b of the push pin 11 stops adsorbing the nut. Next, step S13 is executed, the moving mechanism 12 drives the push pin 11, and the push pin 11 pushes the nut 2 to be sleeved on the nut assembling station 4, as shown in fig. 10. The moving mechanism 12 can drive the push pin 11 to push the nut 2 one time or multiple times, and the pushing pin 11 pushing the nut 2 one time means that the moving mechanism 12 continuously drives the push pin 11 to move toward the nut 2 once. The pushing pin 11 pushes the nut 2 for a plurality of times means that the moving mechanism 12 drives the pushing pin 11 to move toward the nut 2 for a plurality of times, that is, the moving mechanism 12 drives the pushing pin 11 to reciprocate to push the nut. The push pin 11 of the present embodiment pushes the nut 2 into the workpiece 41 to be assembled in a flapping manner, so as to ensure that the nut 2 is stably inserted into the nut assembling station 4. Finally, step S14 is executed, the nut picking jig 1 is moved by the external transmission mechanism to be away from the nut assembling station 4, as shown in fig. 11, since the nut 2 is pushed by the push pin 11 and fixed on the nut assembling station 4, the nut 2 assembled on the workpiece is not taken up when the nut picking jig 1 is away from the nut assembling station 4.

The number of the adsorption sleeves 10 and the push pins 11 of the embodiment is two, and the moving mechanism 12 can simultaneously drive the two push pins 11 to move into the corresponding adsorption sleeves 10, which also indicates that the nut picking jig 1 of the embodiment can simultaneously adsorb, transport and assemble two nuts 2. Therefore, the number of the adsorption sleeves 10 and the number of the push pins 11 in the embodiment are respectively multiple, so as to improve the assembly efficiency of the nut picking jig 1, and certainly, the nut picking jig can be only arranged on a single adsorption sleeve 10 and a single push pin 11. The two sets of suction sleeves 10 and push pins 11 have the same structure, and only one set of suction sleeve 10 and push pin 11 will be described below.

Detailed structure of the moving mechanism 12 is described in detail below, and referring back to fig. 1 to 5, the moving mechanism 12 includes a fixed bracket 121, a driver 122, and a moving base 123. The fixing bracket 121 includes a fixing plate 1211 and a supporting frame 1212, and the supporting frame 1212 is disposed on the fixing plate 1211. The holding space 1213 is formed between the supporting frame 1212 and the fixing plate 1211, the adsorbing sleeve 10 and the pushing pin 11 are disposed in the holding space 1213, one end of the adsorbing sleeve 10 away from the connecting end 11a of the pushing pin 11 is disposed on the fixing plate 1211, i.e. the lower surface 10b of the adsorbing sleeve 10 is disposed on the fixing plate 1211, and the adsorbing through hole 101 is exposed from the fixing plate 1211, in this embodiment, the adsorbing through hole 101 is exposed from the surface of the fixing plate 1211 away from the adsorbing sleeve 10. The driver 122 is disposed on the supporting frame 1212, and the driver 122 has a driving end 122a, and the driving end 122a faces the accommodating space 1213. In the embodiment, the driver 122 is an air cylinder having a push rod, i.e., a driving end 122a, which faces the accommodating space 1213 and extends toward the fixing plate 1211. The movable seat 123 is disposed in the accommodating space 1213 and located between the driver 122 and the connecting end 11a of the push pin 11, and the driving end 122a of the driver 122 and the connecting end 11a of the push pin 11 are respectively connected to the movable seat 123. The driving end 122a of the driver 122 drives the movable seat 123 to move in the accommodating space 1213, and the movable seat 123 drives the push pin 11 to move in the suction through hole 101. The driver 122 of the embodiment drives the push pins 11 to move through the moving base 123, and since the push pins 11 of the embodiment are all disposed on the moving base 123, the driver 122 can drive the push pins 11 to move in the corresponding adsorption sleeves 10. If the nut picking jig 1 has only a single set of the suction sleeve 10 and the push pin 11, the push pin 11 can be directly connected to the driving end 122a of the driver 122.

Preferably, the moving mechanism 12 further includes a guide post 124, the guide post 124 passes through the moving seat 123, two ends of the guide post 124 are respectively connected to the fixing plate 1211 and the supporting frame 1212, and an extending direction of the guide post 124 is parallel to an extending direction of the suction through hole 101. When the driving end 122a of the driver 122 drives the moving base 123 to move, the moving base 123 moves linearly along the guide post 124, the moving base 123 drives the push pin 11 to move linearly in the suction through hole 101, and the guide post 124 ensures that the moving base 123 moves linearly in the vertical direction, so that the push pin 11 does not shift or tilt when moving in the suction through hole 101. The number of the guide posts 124 is two, and the two guide posts 124 are respectively disposed at two ends of the movable base 123, so that the moving direction of the movable base 123 is parallel to the extending direction of the two guide posts 124, and the movable base 123 is prevented from shifting or tilting during the moving process.

The fixing plate 1211 of the present embodiment has a sleeve through hole 12111, the suction sleeve 10 has a fixing portion 103 and a suction portion 104, the fixing portion 103 is fixed on the surface of the fixing plate 1211 facing the push pin 11, the suction portion 104 is located in the sleeve through hole 12111, which also means that a height difference exists between the lower surface 10b of the suction portion 104 and the lower surface 10b of the fixing portion 103, and the suction through hole 101 of the suction sleeve 10 is located in the suction portion 104, i.e., penetrates through the upper surface 10a and the lower surface 10b of the suction portion 104.

The movable base 123 of the present embodiment includes a movable plate 1231 and a stopper 1232. The moving plate 1231 has a first surface 1231a and a second surface 1231b, the first surface 1231a is opposite to the second surface 1231b, the first surface 1231a faces the push pin 11, the limiting member 1232 is disposed on the first surface 1231a, the limiting member 1232 has a limiting plate 12321 and two connecting arms 12322, the two connecting arms 12322 are disposed on two opposite sides of the limiting plate 12321 and are connected to the first surface 1231a, the limiting plate 12321 is close to the push pin 11, and the limiting plate 12321 is parallel to the moving plate 1231. The limit plate 12321 has a limit hole 12323, and the connection end 11a of the push pin 11 passes through the limit hole 12323 and is disposed on the limit plate 12321. The second surface 1231b faces the driver 122. The driving end 122a of the driver 122 is coupled to the second surface 1231 b.

The push pin 11 has a connecting portion 111 and a push pin body 112, the connecting portion 111 is located at the connecting end 11a, and the push pin body 112 passes through the limiting hole 12323 from the surface of the limiting plate 12321 away from the push pin 11 and is movably disposed in the suction through hole 101. The connecting portion 111 is located between the stopper plate 12321 of the stopper 1232 and the moving plate 1231. In the embodiment, at least one side length of the cross section of the connecting portion 111 parallel to the first surface 1231a is longer than the aperture of the limiting hole 12323, which also means that at least one side length of the cross section of the connecting portion 111 parallel to the first surface 1231a is longer than the outer diameter of the push pin body 112, so that the connecting portion 111 abuts against the surface of the limiting plate 12321 around the limiting hole 12323, and the connecting portion 111 does not pass through the limiting hole 12323 and passes out from the surface of the limiting plate 12321 close to the push pin 11, thereby preventing the push pin 11 from separating from the limiting member 1232.

Preferably, the moving base 123 of the present embodiment further includes a buffer member 1233, the buffer member 1233 is disposed on the moving plate 1231, and one end of the buffer member 1233 facing the limiting member 1232 protrudes from the first surface 1231a of the moving plate 1231 and abuts against the connecting portion 111 of the push pin 11. When the driving end 122a of the driver 122 drives the push pin 11 to move toward the nut through the moving seat 123, the absorption end 11b of the push pin 11 contacts with the nut, the push pin 11 moves toward a direction away from the nut, and the buffer member 1233 flexibly buffers the push pin 11 to block the push pin 11 from moving toward the direction away from the nut, so as to ensure that the absorption end 11b of the push pin 11 can contact with the nut, and simultaneously, the vibration generated by the contact between the push pin 11 and the nut can be absorbed. The buffering member 1233 of this embodiment may be an elastic pad (e.g., a rubber pad or a sponge pad), a spring.

Preferably, the push pin 11 of the present embodiment is a hollow tube body, and has a through hole 113, the through hole 113 penetrates through the connecting portion 111 and the push pin body 112, and is communicated with the suction through hole 101, and openings at two ends of the through hole 113 are located at the connecting end 11a and the suction end 11b, respectively. One end of the buffer member 1233 facing the stopper 1232 abuts against the opening of the through hole 113 on the connection end 11a to close one end of the through hole 113, and the gas in the suction through hole 101 and the through hole 113 is sucked through the first suction hole 102, so that the suction end 11b of the push pin 11 can suck the nut.

Preferably, the push pin 11 of the present embodiment further has a second suction hole 114, the second suction hole 114 penetrates from the surface of the connecting portion 111 and communicates with the through hole 113, and the extending direction of the through hole 113 intersects with the extending direction of the second suction hole 114 and has an angle. The external vacuum device is connected to the first air exhaust hole 102 and the second air exhaust hole 114, the external vacuum device extracts the air in the adsorption through hole 101 and the through hole 113 through the first air exhaust hole 102 and the second air exhaust hole 114 to increase the speed of the vacuum state of the adsorption end 11b, and when the nut is adsorbed by the adsorption end 11b of the push pin 11, the external vacuum device continuously extracts the air in the second air exhaust hole 114 to make the interior of the second air exhaust hole 114 vacuum state, the nut can be firmly adsorbed by the adsorption end 11b of the push pin 11, and the adsorption force of the adsorption end 11b of the push pin 11 is increased.

Preferably, the push pin body 112 of the present embodiment has a first body portion 1121 and a second body portion 1122, the suction end 11b of the push pin 11 is located at an end of the first body portion 1121 away from the second body portion 1122, and an end of the second body portion 1122 away from the first body portion 1121 is close to the connection end 11a of the push pin 11. The outer diameter of the first body portion 1121 is smaller than the outer diameter of the second body portion 1122, the first body portion 1121 and a part of the second body portion 1122 are located in the suction through hole 101, the distance between the outer surface of the first body portion 1121 and the side wall of the suction through hole 101 is larger than the distance between the outer surface of the second body portion 1122 and the side wall of the suction through hole 101, and the distance between the outer surface of the second body portion 1122 and the side wall of the suction through hole 101 is very small, so that external air is prevented from entering the suction through hole 101 from the upper surface 10a of the suction sleeve 10, and the air in the suction through hole 101 is extracted through the first air extraction hole 102, so that the suction through hole 101 can be in a.

Preferably, the nut picking jig 1 further includes a sealing member 13, the sealing member 13 is disposed between the second body portion 1122 of the suction through hole 101 and the side wall of the suction through hole 101, and the sealing member 13 fills a gap between the outer surface of the second body portion 1122 and the side wall of the suction through hole 101, so as to prevent external air from entering the suction through hole 101 from the upper surface 10a of the suction sleeve 10, and increase the speed of the vacuum state in the suction through hole 101. The sealing member 13 of the present embodiment uses an O-ring and is sleeved on the outer surface of the second body portion 1122, when the second body portion 1122 enters the suction through hole 101, the sealing member 13 is located between the second body portion 1122 and the side wall of the suction through hole 101, and the sealing member 13 is movable in the suction through hole 101 along with the second body portion 1122 of the push pin 11. Of course, the sealing member 13 may be disposed on the sidewall of the suction through hole 101, and at this time, the sealing member 13 does not move in the suction through hole 101 along with the second body portion 1122 of the push pin 11.

In summary, the present application provides a nut picking jig and a nut assembling method, the pushing pin is driven by the moving mechanism to move in the adsorption through hole, when the nut is assembled on the workpiece, the pushing pin pushes the nut to accurately sleeve the workpiece in a flapping manner, so as to ensure that the nut is stably fixed on the workpiece, and when the nut picking jig is separated from the workpiece, the nut cannot be taken up, thereby effectively improving the assembling efficiency.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a nut picks up tool which characterized in that includes:

the adsorption sleeve is provided with an adsorption through hole and a first air extraction hole, and the first air extraction hole is communicated with the adsorption through hole;

the push pin is movably arranged in the adsorption perforation and is provided with a connecting end and an adsorption end;

the moving mechanism is connected with the connecting end of the push pin and drives the push pin to move in the adsorption perforation;

wherein the moving mechanism includes:

the fixing support comprises a fixing plate and a supporting frame piece, the supporting frame piece is arranged on the fixing plate, an accommodating space is formed between the supporting frame piece and the fixing plate, the adsorption sleeve and the push pin are arranged in the accommodating space, one end, far away from the connecting end, of the adsorption sleeve is arranged on the fixing plate, and the adsorption through hole is exposed out of the fixing plate;

the drive end of the driver faces the accommodating space and is connected with the connecting end;

the movable seat is arranged in the accommodating space and is positioned between the driver and the push pin, and the driving end of the driver and the connecting end of the push pin are respectively connected with the movable seat.

2. The nut picking jig according to claim 1, wherein the moving base comprises a moving plate and a limiting member, the moving plate has a first surface and a second surface opposite to each other, the first surface faces the push pin, the limiting member is disposed on the first surface, and the driving end of the driver is connected to the second surface; the surface of the limiting part facing the push pin is provided with a limiting hole, and the connecting end of the push pin is arranged in the limiting hole.

3. The nut picking jig according to claim 2, wherein the push pin has a connecting portion and a push pin body, the push pin body is movably disposed in the limiting hole and the suction through hole, the connecting portion is located between the limiting member and the moving plate, and the connecting portion abuts against a surface of the limiting member around the limiting hole; the movable seat further comprises a buffer piece, the buffer piece is arranged on the movable plate, and the buffer piece faces to one end of the limiting piece and abuts against the connecting portion of the push pin.

4. The nut picking jig according to claim 3, wherein the push pin body has a first body portion and a second body portion, an outer diameter of the first body portion is smaller than an outer diameter of the second body portion, and the first body portion and a part of the second body portion are located in the suction through hole.

5. The nut picking jig according to claim 4, further comprising a sealing member between the second body portion in the suction through hole and a side wall of the suction through hole.

6. The nut picking jig according to claim 3, wherein the push pin has a through hole passing through the connecting portion and the push pin body and communicating with the suction through hole, and a second suction hole passing through a side surface of the push pin and communicating with the through hole.

7. The nut picking jig according to any one of claims 1 to 6, wherein the fixing plate has a sleeve through hole, the suction sleeve has a fixing portion fixed to the fixing plate and a suction portion located in the sleeve through hole, the suction through hole is located in the suction portion; the moving mechanism further comprises a guide pillar, the guide pillar penetrates through the moving seat, and two ends of the guide pillar are connected with the fixed plate and the supporting frame piece respectively.

8. A nut assembling method, characterized in that the nut assembling method is performed using the nut picking jig according to any one of claims 1 to 7, the nut assembling method comprising:

the adsorption end of the push pin adsorbs a nut to be assembled;

moving the nut picking jig and carrying the nuts;

the nut picking jig moves to a nut assembling station, and the nut adsorbed by the adsorption end is placed on the nut assembling station:

the moving mechanism drives the push pin, and the push pin pushes the nut to be sleeved on the nut assembling station:

and moving the nut picking jig to be far away from the nut assembling station.

9. The nut assembling method according to claim 8, wherein the step of sucking the nut to be assembled by the suction end of the push pin includes:

moving the nut picking jig to a nut feeding station, wherein the nut feeding station enters the adsorption through hole, the nut to be assembled is arranged on the nut feeding station, and the nut is positioned in the adsorption through hole;

and air is pumped through the first air pumping hole, so that the adsorption end adsorbs the nut from the nut feeding station.

10. The method for assembling a nut as claimed in claim 8, wherein said step of moving said pushing pin by said moving mechanism includes said moving mechanism driving said pushing pin to reciprocate to push said nut.