CN107902410B

CN107902410B - Lens carrying suction head

Info

Publication number: CN107902410B
Application number: CN201711024341.2A
Authority: CN
Inventors: 孙有为; 宗福涛; 刘远浩
Original assignee: Goertek Inc
Current assignee: Goertek Optical Technology Co Ltd
Priority date: 2017-10-27
Filing date: 2017-10-27
Publication date: 2020-09-22
Anticipated expiration: 2037-10-27
Also published as: CN107902410A

Abstract

The invention discloses a lens carrying suction head. This lens transport suction head includes: a suction head main body; a nozzle rod and a linear bearing, wherein the linear bearing is fixedly arranged in the sucker main body, the nozzle rod is inserted into the linear bearing, the nozzle rod is configured to move along the axial direction of the nozzle rod relative to the linear bearing, and the suction end of the nozzle rod extends out of the sucker main body; a resilient member disposed on the tip body, the resilient member configured to drive the nozzle stem to move outside of the tip body; the suction head main body is provided with a limiting structure, and the limiting structure limits the length of the suction nozzle rod extending out of the suction head main body; the suction nozzle comprises a suction nozzle rod and is characterized in that an air passage is formed in the suction nozzle rod, a sealing air passage is arranged in the suction nozzle body and communicated with the air passage, and a suction end of the suction nozzle rod is configured to be capable of sucking and adsorbing a lens through the air passage.

Description

Lens carrying suction head

Technical Field

The invention belongs to the technical field of optical module assembly, and particularly relates to a lens carrying suction head.

Background

In recent years, consumer electronics have been rapidly developed, and in particular, parts including a micro optical module, such as a micro lens and a micro display, are widely used in electronic products, such as a tablet computer and a VR headset.

The micro optical module generally includes components such as a lens, a developing or image pickup device, and the like, which requires high precision in assembly. The accuracy of the assembly of miniature optical module products affects the optical performance and product consistency of the module. The relative position and angle between the lens and the imaging or photographing component can directly affect the optical performance of the micro optical module. In addition, the lens is easy to collide with and scratch in the carrying and assembling processes, so that the assembling of the lens is difficult, and even the performance of the micro optical module is affected.

In order to improve the assembling accuracy of the lens, the prior art generally adopts a scheme of automatically controlling a matched lens clamp to carry and assemble the lens. However, the conventional lens clamp still easily damages the lens, and particularly, in the operation of pressing the lens for bonding and fixing, the lens is easily crushed. On the other hand, the lens holder itself has limited reliability, and when the lens is assembled, the lens is likely to be slightly deflected or swung, and the assembled position of the lens is likely to be deviated from a predetermined position.

The problems with the lens holder described above all affect the final performance of the micro-optical module. Therefore, there is a need for an improved lens holder that provides a more reliable lens holder.

Disclosure of Invention

An object of the present invention is to provide a new solution for a lens holder.

According to a first aspect of the present invention there is provided a lens handling tip comprising:

a suction head main body;

a nozzle rod and a linear bearing, wherein the linear bearing is fixedly arranged in the sucker main body, the nozzle rod is inserted into the linear bearing, the nozzle rod is configured to move along the axial direction of the nozzle rod relative to the linear bearing, and the suction end of the nozzle rod extends out of the sucker main body;

a resilient member disposed on the tip body, the resilient member configured to drive the nozzle stem to move outside of the tip body;

the suction head main body is provided with a limiting structure, and the limiting structure limits the length of the suction nozzle rod extending out of the suction head main body;

the suction nozzle comprises a suction nozzle rod and is characterized in that an air passage is formed in the suction nozzle rod, a sealing air passage is arranged in the suction nozzle body and communicated with the air passage, and a suction end of the suction nozzle rod is configured to be capable of sucking and adsorbing a lens through the air passage.

Optionally, the lens handling nozzle is configured with a rotation stop mechanism configured to limit rotation of the nozzle stem relative to the nozzle body.

Optionally, the rotation stopping mechanism includes a rotation stopping guide rod and a rotation stopping guide sleeve, the rotation stopping guide rod is connected to the nozzle rod and configured to move with the nozzle rod, the rotation stopping guide sleeve is disposed on the suction head main body, and the rotation stopping guide rod is inserted into the rotation stopping guide sleeve.

Optionally, a hollow main shaft is configured on the suction head main body, the sealing air path is formed in the hollow main shaft, the linear bearing is arranged in the sealing air path, the suction nozzle rod is coaxially arranged with the hollow main shaft, and the suction end extends out of the hollow main shaft.

Optionally, one end of the hollow main shaft is a flange end face, the flange end face extends out of the suction head main body, a sealing flange is arranged on the flange end face, a sealing guide sleeve is arranged in the center of the sealing flange, the suction nozzle rod penetrates out of the sealing guide sleeve, and the sealing guide sleeve is configured to guide the suction nozzle rod.

Optionally, the resilient member comprises two springs;

the hollow main shaft is provided with a step surface in the sealed air passage, the suction nozzle rod is sleeved with an isolating ring opposite to the step surface, and the spring is arranged between the isolating ring and the step surface;

the suction end is provided with a blocking surface facing the end surface of the hollow main shaft, and the other spring is arranged between the blocking surface and the end surface of the hollow main shaft.

Optionally, the limiting structure is a positioning flange, the positioning flange is disposed at a position on the hollow spindle where the suction nozzle rod extends, a positioning edge is formed on the suction nozzle rod, the positioning edge is opposite to the positioning flange, and when the suction nozzle rod extends out of the suction head main body, the positioning edge is respectively configured to abut against the positioning flange so as to limit the length of the suction nozzle rod extending out.

Optionally, the lens handling nozzle comprises a first fixing seat and a second fixing seat, the first fixing seat is rotatably connected with the second fixing seat, the nozzle body is rotatably connected with the second fixing seat, the first fixing seat is configured to be fixedly connected with a processing machine, and a rotation plane of the second fixing seat relative to the first fixing seat and a rotation plane of the nozzle body relative to the second fixing seat are orthogonal to each other.

Optionally, the lens handling tip comprises two rotational adjustment assemblies, one configured to adjust the relative rotational position of the first and second mounts, the other configured to adjust the relative rotational position of the second mount with the tip body.

Optionally, the rotation adjusting assembly is arranged on the second fixed seat;

or, one of the rotation adjusting components is arranged on the first fixed seat, and the other rotation adjusting component is arranged on the second fixed seat or the suction head main body.

According to one embodiment of the disclosure, the situation that the suction nozzle rod deflects and rubs in the radial direction of the suction nozzle rod can be effectively inhibited, so that the assembling precision of the lens conveying suction head on the lens is improved.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

FIG. 1 is a schematic perspective view of a lens-handling pipette tip according to the present invention;

FIG. 2 is a schematic cross-sectional view of a lens-handling tip provided in accordance with the present invention;

FIG. 3 is an enlarged partial schematic view of FIG. 2;

fig. 4 is a partially enlarged schematic view of fig. 2.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The invention provides a lens carrying suction head, which comprises a suction head main body 1, a suction nozzle rod 2, a linear bearing 3 and an elastic part 4, as shown in figures 1 and 2. The lens carrying suction head is used for carrying and assembling the lens in a suction mode. Wherein, the suction head main body 1 forms the main body structure of the lens carrying suction head, and a space for accommodating components such as the suction nozzle rod 2, the linear bearing 3 and the like is formed in the suction head main body 1.

As shown in fig. 2-4, the linear bearing 3 is fixedly arranged in the suction head body 1, and the suction nozzle rod 2 is inserted into the linear bearing 3. The linear bearing 3 plays a role in guiding the movement of the nozzle rod 2, and the nozzle rod 2 can slide relative to the linear bearing 3 along the axial direction of the nozzle rod. Due to the limiting effect of the linear bearing 3, when the nozzle rod 2 moves axially, the rubbing and swinging relative to the radial direction of the nozzle rod cannot occur; alternatively, the amount of radial wobble produced is small. The suction nozzle rod 2 is provided with a suction end 21, and the suction end 21 is used for abutting against the carried lens to form suction fixation on the lens. The suction end 21 extends from the tip body 1 to the outside of the tip body 1.

As shown in fig. 2, the elastic member 4 is disposed on the nozzle body 1, one end of the elastic member 4 can be pressed against the nozzle body 1, and the other end is pressed against the nozzle rod 2. The elastic member 4 is configured to exert an elastic action on the nozzle rod 2, so as to drive the nozzle rod 2 to slide towards the outside of the nozzle body 1. Furthermore, a limiting structure is arranged on the suction head main body 1, and the limiting structure can form a stop for the suction nozzle rod 2. When the suction nozzle rod 2 extends to a certain length towards the outer side of the suction head main body 1, the limiting structure blocks the suction nozzle rod 2 and prevents the suction nozzle rod 2 from continuing to extend outwards. Namely, the limiting structure limits the length of the sucker rod 2 extending out of the sucker main body 1.

In particular, the nozzle rod 2 is a hollow structure having an air passage 22 therein. A sealing air path 12 is arranged in the suction head main body 1. The suction head body 1 is configured to pump air out of the sealed air passage 12, so that negative pressure is formed in the sealed air passage 12 and the air passage 22. The air channel 22 of the suction nozzle rod 2 is communicated with the suction end 21, and the negative pressure in the air channel 22 forms suction force at the suction end 21 for sucking the lens.

The working principle of the lens carrying suction head provided by the invention is as follows: the suction head main body moves to enable the suction end to be close to and contact with the lens; the suction head main body forms negative pressure in the air passage, and the suction end adsorbs and fixes the lens; the suction head main body moves to enable the suction end to carry the lens to move to the assembly piece to be assembled together; the suction head main body moves towards the assembly to be assembled along the axial direction of the suction head rod, the lens is in contact with and pressed against the assembly to be assembled, and the generated reaction force compresses the elastic component to enable the suction head rod to retract into the suction head main body; the suction head main body moves in the direction far away from the to-be-assembled piece along the axial direction of the suction nozzle rod, the suction nozzle rod extends out of the suction head main body under the action of the elastic component, and when the suction nozzle rod extends out to a certain length, the suction nozzle rod does not extend out under the stopping action of the limited structure; the suction head main body removes the negative pressure in the air passage, the suction at the suction end is removed, and the suction end is separated from the lens.

The lens carrying suction head provided by the invention has the advantage that the linear bearing provides a reliable and accurate guiding function for the axial movement of the suction head rod. The suction nozzle rod can move axially relative to the suction head main body smoothly, and is not easy to incline and swing along the radial direction of the suction nozzle rod, so that the phenomena of inclination and dislocation of the lens during assembly are avoided, and the assembly accuracy is improved. In addition, the linear bearing also plays a good supporting role for the suction nozzle rod, and the square shape and the reliability of the suction nozzle rod are improved.

The linear bearing usually adopts a ball structure, and can provide smooth and stable movement guiding function for the suction nozzle rod. However, the linear bearing is constructed using a ball structure so that the nozzle rod can freely rotate in the circumferential direction of its axis. If the nozzle rod rotates when the lens is assembled, the positioning posture of the lens may be affected. If the lens is not round but has a specific shape, the rotation of the nozzle rod directly causes inaccurate positioning of the lens and abnormal assembly. Preferably, the lens handling nozzle is further provided with a rotation stop mechanism configured to limit rotation of the nozzle stem relative to the nozzle body in a circumferential direction of its axis.

Alternatively, as shown in fig. 2 and 4, the rotation stopping mechanism may include a rotation stopping guide 202 and a rotation stopping guide sleeve 111. The rotation stopping guide rod 202 is fixedly arranged on the nozzle rod 2, and when the nozzle rod 2 moves along the axial direction, the rotation stopping guide rod 202 can move along with the nozzle rod 2. The rotation stop guide 202 and the nozzle bar 2 are parallel to each other. The rotation stopping guide sleeve 111 is arranged on the sucker main body 1, and the rotation stopping guide rod 202 is inserted into the rotation stopping guide sleeve 111. When the rotation stop guide 202 moves along with the nozzle rod 2, the rotation stop guide 202 moves in the rotation stop guide sleeve 111. When the nozzle rod 2 tends to rotate, the rotation stop guide 202 is parallel to the nozzle rod 2, and the rotation stop guide sleeve 111 forms a radial position limitation on the rotation stop guide 202. Therefore, the relative limit function between the rotation stop guide 202 and the rotation stop guide sleeve 111 can prevent the nozzle rod 2 from rotating.

Alternatively, as shown in fig. 2 to 4, a hollow spindle 100 may be disposed on the tip body 1, and the hollow spindle 100 may rotate in the tip body 1. A sealed air passage 12 is formed in the hollow main shaft 100, and a linear bearing and a nozzle rod 2 are also provided in the hollow main shaft 100. The nozzle rod 2 is coaxially arranged with the hollow spindle 100, and the nozzle rod 2 penetrates through the hollow spindle 100. The suction end 21 of the nozzle rod 2 protrudes from the hollow spindle 100. The suction head main body 1 can also be provided with a driving motor 8 and other components for driving the hollow main shaft 100 to rotate so as to drive the suction nozzle rod 2 therein to rotate. By the rotation control of the driving motor 8, the posture of the lens at the suction end 21 can be rotationally adjusted.

Alternatively, as shown in fig. 2 and 4, one end of the hollow spindle 100 is a flange end surface 101, and the other end is a driving end, which is inserted into the suction head body 1 and connected with the driving motor 8 through a coupling 81. One end of the hollow main shaft 100, which is provided with a flange end surface 101, extends out of the suction head body 1, a sealing flange 110 is arranged on the flange end surface 101, an opening is formed in the center of the sealing flange 110, and a sealing guide sleeve 112 is arranged at the opening, as shown in fig. 2. The sealing flange 110 and the sealing guide sleeve 112 form a seal for the sealing air path 12 in the hollow spindle 100, so as to avoid air leakage at the flange end face 101. The suction nozzle rod 2 passes through the sealing guide sleeve 112, and the suction nozzle rod 2 and the sealing guide sleeve 112 are in relative sliding fit. The sealing guide sleeve 112 plays a role in guiding and gap sealing for the nozzle rod 2, so that the nozzle rod 2 can accurately move in a telescopic manner along the axial direction of the nozzle rod 2, radial deflection is reduced, and an air leakage gap between the flange end face 101 and the hollow main shaft of the nozzle rod 2 is prevented.

The elastic component 4 may be two springs, which are respectively disposed at different matching positions of the hollow spindle 100 and the nozzle rod 2 to generate an acting force for extending the nozzle rod 2 outwards. As shown in fig. 2, the hollow spindle 100 forms a step surface 102 in the sealed air duct 22, and the nozzle rod 2 is sleeved with a spacer ring 23 opposite to the step surface 102. When the nozzle rod 2 extends out of the sucker main body 1, the isolating ring 23 is relatively far away from the step surface 102, and is relatively close to the step surface. One of the springs is arranged between the isolating ring 23 and the step surface 102, and when the suction nozzle rod 2 retracts into the suction nozzle body 1, the isolating ring 23 and the step surface 102 approach each other so as to compress the spring. The spring generates a force that urges the spacer ring 23 away from the step face 102.

The other spring is arranged outside the suction head main body 1. The suction end 21 is formed with a stop surface 201 facing the end surface of the hollow spindle 100, and another spring is disposed between the stop surface 201 and the end surface of the hollow spindle 100. When the nozzle rod 2 retracts into the sucker main body 1, the blocking surface 201 approaches the end surface of the hollow spindle 100 so as to compress the spring. The spring generates a force that pushes the stop face 201 away from the end face of the hollow spindle 100. In the embodiment shown in fig. 2, a table is disposed around the nozzle rod 2, and a rotation prevention block 200 is further disposed on the table, wherein the rotation prevention block 200 is used for fixedly disposing the rotation prevention guide rod 202. The surface of the anti-rotation block 200 facing the sealing flange 110 serves as the stop surface 201. The spring is disposed between the anti-rotation block 200 and the sealing flange 110. The elastic component provided by the invention has a simple configuration mode and a simple structure, is easy to assemble and high in reliability, and is suitable for the application environment of the lens carrying suction head. In other embodiments, other members such as rubber elastic members may be employed as the elastic member. The elastic member may be provided at an end portion of the nozzle rod inserted into the suction head main body. The present invention does not limit the type and assembly of the elastic member.

The above-mentioned position limiting structure of the present invention can be selected as the positioning flange 113, as shown in fig. 2 and 4, the positioning flange 113 is disposed on the hollow spindle at the position where the nozzle rod 2 extends. Correspondingly, the nozzle rod 2 is formed with a positioning edge 24, and the positioning edge 24 is opposite to the positioning flange 113. When the nozzle rod 2 extends out of the sucker main body, the positioning edges 24 are respectively configured to be capable of abutting against the positioning flanges 113 so as to limit the extending length of the nozzle rod 2. Through the structural configuration, the position of the suction nozzle rod 2 can be effectively limited, and the suction nozzle rod 2 is prevented from being separated from the suction head body.

When the lens is actually assembled, the angle and the posture of the lens may not meet the assembling requirement due to the influence of factors such as the positioning of the lens and the assembling positioning of the processing machine itself. The preferred lens handling suction head of the present invention further comprises a first fixed mount 5 and a second fixed mount 6. Through the assembly connection relation of first fixing base 5 and second fixing base 6, can adjust the gesture of lens transport suction head itself on the processing machine, and then adjust the gesture of lens to satisfy the requirement of lens equipment.

As shown in fig. 1, the first fixing seat 5 is rotatably connected to the second fixing seat 6, and the suction head body 1 is rotatably connected to the second fixing seat 6. The first fixed seat 5 is used for being directly and fixedly connected with a processing machine. Namely, the suction head body 1 is connected to the processing machine through the second fixing seat 6 and the first fixing seat 5. The suction head main body 1 can rotate for a certain angle relative to the second fixed seat 6, and the second fixed seat 6 can rotate for a certain angle relative to the first fixed seat 5. In particular, the plane of rotation of the second fixed mount 6 relative to the first fixed mount 5 and the plane of rotation of the nozzle body 1 relative to the second fixed mount 6 are orthogonal to each other. Thus, the sucker body can freely adjust the angle and the posture in a three-dimensional space so as to ensure that the lens meets the requirement of the assembly posture.

Alternatively, the lens handling nozzle may comprise two rotation adjustment assemblies 7, and the rotation angle of the second fixed base 6 and the nozzle body 1 can be adjusted by the rotation adjustment assemblies 7. One of the rotation adjusting assemblies 7 is used for adjusting the relative rotation position of the first fixed seat 5 and the second fixed seat 6, and the other rotation adjusting assembly 7 is configured for adjusting the relative rotation position of the second fixed seat 6 and the suction head body 1.

In the embodiment shown in fig. 2, both of the rotation adjusting assemblies 7 are disposed on the second fixed base 6. In other embodiments, it can be configured that one of the rotation adjusting assemblies 7 is disposed on the first fixing base 5, and the other is disposed on the second fixing base 6 or the suction head. In the embodiment of fig. 2, the rotary adjustment assembly 7 includes a fixed block and an adjustment knob 71. The fixed block is installed at the edge of second fixing base 6, and in adjusting knob 71 screw in fixed block, adjusting knob 71's tip stretches out from the fixed block to push up on the lateral wall of first fixing base 5 or suction head main part 1. The distance that the end of the adjusting knob 71 extends out of the fixed block can be changed by rotating the adjusting knob 71, so that the first fixed seat 5 or the suction head main body 1 is propped against and pushed to rotate relative to the second fixed seat 6. By controlling the rotation angle of the adjusting knob 71, the rotation angles of the sucker body 1 relative to the first fixing seat 5 and the second fixing seat 6 can be accurately controlled, and the posture of the sucker body 1 and the lens can be accurately adjusted.

One embodiment of the present invention is described below in conjunction with the lens handling mechanism shown in fig. 1-4. As shown in figure 1, a driving motor 8 is arranged above the sucker body 1. The sucker body 1 is rotatably connected with the second fixed seat 6 through a second rotating pin 61. The second fixing seat 6 is L-shaped or T-shaped, and the first fixing seat 5 is rotatably connected with the second fixing seat 6 through a first rotating pin 51. As shown in FIG. 1, two rotary adjusting components 7 are disposed on the second fixing base 6, and two adjusting knobs 71 are aligned with the first fixing plate 6 and the suction head body 1, respectively. The adjusting knob 71 is screwed into the threaded hole of the rotary adjusting assembly 7, and the adjusting knob 71 can be rotated to extend or retract the adjusting knob 71 from the threaded hole, so as to push the first fixing base 5 or the side surface of the suction head body 1 to rotate the first fixing base 5 or the side surface of the suction head body 1 relative to the second fixing base 6. Wherein, the axis of the adjusting knob for adjusting the relative angle between the first fixed seat 6 and the second fixed seat 6 does not intersect with the axis of the first rotating pin 51; and an adjusting knob for adjusting the relative angle of the second fixed seat 6 and the sucker body 1, wherein the axis of the adjusting knob does not intersect with the axis of the second rotating pin 61.

As shown in fig. 2, the driving motor 8 is in transmission connection with the hollow spindle 100 through a coupling 81. The drive motor 8 is capable of driving the hollow spindle 100 in rotation. As shown in fig. 2 and 3, the hollow spindle 100 has a sealed air path 12 extending along its axis, the hollow spindle 100 has a vent formed at one end of the sealed air path 12, the vent is communicated with an air nozzle 9, and the air nozzle 9 is communicated with an air extractor through a pipeline. A plurality of ventilation holes may be opened on the hollow spindle 100 around the sealing air path 12, so that the sealing air path 12 can also communicate with the air faucet 9 when the hollow spindle 100 rotates. Two sealing rings 103 surrounding the hollow spindle 100 may be provided in the tip body 1, the two sealing rings 103 being located on the upper and lower sides of the vent hole, respectively. The sealing ring 103 seals the air passage 12 to prevent air leakage from the gap between the hollow spindle 100 and the suction head body 1 around the air vent.

The nozzle rod 2 also has a hollow structure, the nozzle rod 2 is inserted into the hollow spindle 100, and the air passage 22 in the nozzle rod 2 is communicated with the sealed air passage 12 in the hollow spindle 100. A step surface 102 is formed in the hollow main shaft 100, and the inner diameter of the sealing air passage 12 is changed at the step surface 102. The main body of the nozzle rod 2 is located in the area with a larger inner diameter of the sealing air passage 12 below the step surface 102. The nozzle rod 2 is sleeved with a spacer ring 23, the end face of the spacer ring 23 is opposite to the step surface 102, and a spring serving as the elastic component 4 is arranged between the spacer ring 23 and the step surface 102.

The linear bearing 3 is interposed between the outer surface of the nozzle rod 2 and the inner surface of the hollow main shaft 100. The linear bearing 3 uses steel balls as a slide guide member, so that the nozzle rod 2 can slide smoothly in the axial direction in the hollow main shaft 100. Meanwhile, the linear bearing 3 can also effectively provide a limiting effect in the radial direction of the nozzle rod 2, and prevent or inhibit the nozzle rod 2 from swinging and shaking in the radial direction when moving along the axial direction.

As shown in fig. 2 and 4, the lower end of the hollow main shaft 100 has a flange structure, and a flange end surface 101 is formed, and the flange end surface 101 is exposed from the lower end of the tip body 1. The flange end face 101 is provided with a sealing flange 110, and the center of the sealing flange 110 is opened for the suction nozzle rod 2 to extend downwards from the opening. The opening of the sealing flange 110 is provided with a sealing guide sleeve 112. The nozzle rod 2 passes through the sealing guide sleeve 112, and the sealing guide sleeve 112 and the isolation ring 23 form sealing isolation for the linear bearing 3. A positioning piece is attached to the lower end face of the sealing flange 110, and the center of the positioning piece is also provided with an opening for the nozzle rod 2 to extend out. In particular, the diameter of the central opening of the spacer, which constitutes the above-mentioned positioning flange 113, is smaller than the inner diameter of the sealing guide sleeve. The nozzle rod 2 is formed with a stepped positioning rim 24 at a corresponding position. When the nozzle rod 2 extends downwards from the suction head body 1 to a certain length, the positioning edge 24 will abut against the positioning flange 113, thereby limiting the nozzle rod 2 from further extending.

The suction end 21 of the suction nozzle rod 2 extending out of the suction head main body 1 is provided with an annular table top, the annular table top is provided with a rotation prevention block 200, and the rotation prevention guide rod 202 is inserted on the rotation prevention block 200. The rotation stopping guide sleeve 111 is formed on the sealing flange 110, and the rotation stopping guide rod 202 can be inserted into the rotation stopping guide sleeve 111 and can move up and down along with the suction nozzle rod 2. The upper surface of the rotation preventing block 200 is the stopper surface 201, and the spring as the elastic member 4 is provided between the stopper surface 201 and the positioning piece.

In the embodiment shown in fig. 2, a suction nozzle 210 is sleeved on the suction end 21, and the air passage 22 is communicated with the outside through the suction nozzle 210. The suction nozzle 210 is used to contact the lens to be assembled.

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A lens handling tip, comprising:

a suction head main body;

an air passage is formed in the suction nozzle rod, a sealed air passage is formed in the suction head main body and is communicated with the air passage, and the suction end of the suction nozzle rod is configured to suck and adsorb the lens through the air passage;

the lens handling tip is provided with a rotation stop mechanism configured to restrict rotation of the nozzle stem relative to the tip body; the rotation stopping mechanism comprises a rotation stopping guide rod and a rotation stopping guide sleeve, the rotation stopping guide rod is connected to the suction nozzle rod and is configured to move along with the suction nozzle rod, the rotation stopping guide sleeve is arranged on the suction head main body, and the rotation stopping guide rod is inserted into the rotation stopping guide sleeve;

a hollow main shaft is arranged on the suction head main body, one end of the hollow main shaft is a flange end face, the flange end face extends out of the suction head main body, a sealing flange is arranged on the flange end face, and the rotation stopping guide sleeve is formed on the sealing flange;

the suction head main body is provided with a driving motor, the driving motor is configured to drive the hollow main shaft to rotate in the suction head main body, and the hollow main shaft drives a suction nozzle rod therein to rotate.

2. The lens handling tip of claim 1, wherein the sealed air passage is formed in the hollow spindle, the linear bearing is disposed in the sealed air passage, the tip stem is disposed coaxially with the hollow spindle, and the suction end extends from the hollow spindle.

3. The lens handling tip of claim 2, wherein the sealing flange has a sealing guide centrally disposed therein, the tip stem passing therethrough, the sealing guide configured to guide the tip stem.

4. The lens handling tip of claim 2, wherein the resilient member comprises two springs;

5. The lens handling nozzle of claim 2, wherein the limiting structure is a positioning flange disposed at a position on the hollow spindle where the nozzle stem extends, the nozzle stem having a positioning edge formed thereon, the positioning edge being opposite to the positioning flange, the positioning edge being configured to abut against the positioning flange when the nozzle stem extends from the nozzle body to limit the length of the nozzle stem extending therefrom.

6. The lens handling tip of claim 1, wherein the lens handling tip comprises a first mount and a second mount, the first mount being rotationally coupled to the second mount, the tip body being rotationally coupled to the second mount, the first mount being configured for fixed connection to a processing machine, a plane of rotation of the second mount relative to the first mount being orthogonal to a plane of rotation of the tip body relative to the second mount.

7. The lens handling tip of claim 6, wherein the lens handling tip includes two rotational adjustment assemblies, one configured to adjust the relative rotational position of the first and second holders, and the other configured to adjust the relative rotational position of the second holder with respect to the tip body.

8. The lens handling tip of claim 7, wherein the rotational adjustment assembly is disposed on the second mount;