CN117047436B

CN117047436B - Needle loading equipment and needle loading method for cantilever probe

Info

Publication number: CN117047436B
Application number: CN202311299735.4A
Authority: CN
Inventors: 汤友龙; 余畅; 何旸
Original assignee: Wuhan Jingce Electronic Group Co Ltd; Wuhan Jingyitong Electronic Technology Co Ltd
Current assignee: Wuhan Jingce Electronic Group Co Ltd; Wuhan Jingyitong Electronic Technology Co Ltd
Priority date: 2023-10-09
Filing date: 2023-10-09
Publication date: 2024-01-05
Anticipated expiration: 2043-10-09
Also published as: CN117047436A

Abstract

The invention discloses needle loading equipment and a needle loading method for a cantilever probe, and belongs to the technical field of probes. The needle loading device comprises a conveying line, a needle bar adjusting assembly, a needle point adjusting assembly and an assembling unit; the needle bar adjusting assembly comprises a first push block and a first driving piece, and the first driving piece is used for driving the first push block to move along a second direction; the needle point adjusting assembly comprises a comb needle rod and a displacement piece, the comb needle rod extends along the second direction, the displacement piece is used for driving the comb needle rod to move, and the comb needle rod and the first pushing block are positioned on two sides of the conveying line; the assembly unit comprises a second driving piece, and the second driving piece is used for pushing the needle point limiting block to move along a second direction so that the needle point limiting block abuts against the storage tray. The needle mounting equipment for the cantilever probe, provided by the embodiment of the invention, effectively improves the needle mounting efficiency, is convenient and reliable in the whole process, avoids the problem of high requirements on the proficiency of manual operation, and meets the production requirements.

Description

Needle loading equipment and needle loading method for cantilever probe

Technical Field

The invention belongs to the technical field of probes, and particularly relates to a cantilever probe needle loading device and a cantilever probe needle loading method.

Background

In a new type of electronic component module such as a display or a semiconductor, performance such as conduction is detected in a manufacturing process thereof. One end of a probe on the probe card is directly contacted with a golden finger on a tested product, the other end of the probe is contacted with a Pad point on the transfer PCB, and the probe is connected with the detection device through the transfer of the transfer PCB, so that a passage is formed for detection.

In order to increase the productivity of cantilever-needle probe cards, a plurality of cantilever probes are typically assembled in a tray for transport and transfer. The charging tray includes stock tray and needle point stopper, and both can dismantle the connection. The storage tray is provided with a plurality of positioning blocks so that needle bars of a plurality of cantilever probes are placed at intervals in parallel, and the side edge of the needle point limiting block is provided with a positioning groove for inserting the tip of the cantilever probe. At present, the existing needle loading method is to connect the stock disc and the needle point limiting block. Then, a plurality of cantilever needles are placed on a stock disc through a manipulator (because the positioning grooves and the cantilever probes are smaller, the needle points are uneven in the placing process of the manipulator, the needle points are not necessarily downward and cannot be directly placed in the positioning grooves), and then the needle rods of the cantilever probes are manually moved or rotated one by means of a special tool through manpower, so that the needle points are inserted into the positioning grooves of the needle point limiting blocks, and finally the needle loading of the cantilever probes in the stock disc is completed.

However, the manual needle loading method is low in efficiency, and the requirement on the proficiency is too high to meet the generation requirement.

Disclosure of Invention

Aiming at the defects or improvement demands of the prior art, the invention provides the needle mounting equipment and the needle mounting method for the cantilever probe, which aim to effectively improve the needle mounting efficiency, are convenient and reliable in the whole process, avoid the problem of high requirements on the proficiency of manual operation, and meet the production requirements.

In a first aspect, the present invention provides a needle loading device for a cantilever probe, the needle loading device comprising a conveying line, a needle bar adjusting assembly, a needle tip adjusting assembly and an assembling unit, the needle bar adjusting assembly, the needle tip adjusting assembly and the assembling unit being arranged along the conveying line;

the conveying line extends along a first direction and is used for conveying the storage tray to move along the first direction;

the needle bar adjusting assembly comprises a first push block and a first driving piece, wherein the first driving piece is used for driving the first push block to move along a second direction, so that the first push block pushes the needle bars of all cantilever probes on the stock disc to be flush;

the needle point adjusting assembly comprises a comb needle rod and a displacement piece, the comb needle rod extends along a second direction, the displacement piece is used for driving the comb needle rod to move, so that the comb needle rod can adjust the needle point orientation of each cantilever probe on the stock disc, and the comb needle rod and the first pushing block are positioned on two sides of the conveying line;

the assembly unit comprises a second driving piece, wherein the second driving piece is used for pushing the needle point limiting block to move along a second direction, so that the needle point limiting block abuts against the stock disc.

Optionally, the first ejector pad includes pushing part and connecting portion, pushing part with the output transmission of first driving piece is connected, pushing part with press from both sides between the connecting portion and be equipped with pressure sensor, pressure sensor is used for detecting the pressure that pushing part received.

Optionally, the needle tip adjusting component further comprises a camera, an image processor and a controller, wherein the camera is used for photographing the needle tips of the cantilever probes on the stock disc, the camera and the first pushing block are arranged opposite to each other, the camera, the image processor and the controller are electrically connected in sequence, and the controller is electrically connected with the displacement member.

Optionally, the displacement piece includes first linear electric motor, second linear electric motor and third linear electric motor, first linear electric motor is used for driving second linear electric motor removes along the second direction, second linear electric motor is used for driving third linear electric motor removes along the first direction, third linear electric motor is used for driving the broach pole removes along the third direction, the controller is connected with first linear electric motor, second linear electric motor and third linear electric motor electricity respectively.

Optionally, the conveying line is a linear motor, the conveying line is provided with a mounting plate for bearing the stock tray, the top surface of the mounting plate is provided with a plurality of positioning pins arranged at intervals, and each positioning pin is used for positioning the stock tray.

Optionally, the conveying line is provided with a fine tuning sliding table, and the output end of the fine tuning sliding table is in transmission connection with the mounting plate so as to adjust the position of the mounting plate in the first direction.

Optionally, a plurality of proximity sensors are inserted on the mounting plate, and the plurality of proximity sensors are used for detecting the mounting flatness of the storage tray and the mounting plate.

Optionally, the top surface of the mounting plate is provided with a top strip, the top strip extends along a first direction, a plurality of threaded top threads which are arranged at intervals are inserted on the top strip, and each threaded top thread extends out of the top strip to be propped against the stock tray.

Optionally, in the first direction, a dimension of the first pushing block toward the pushing end face of the conveying line does not exceed a distance between needle bars of two adjacent cantilever probes on the stock tray.

In a second aspect, the present invention provides a needle loading method of a cantilever probe, the needle loading method being based on the needle loading device of the first aspect, the needle loading method comprising:

placing the storage tray on the conveying line, and conveying the storage tray to move along a first direction through the conveying line;

the first pushing block is driven to move through the first driving piece, so that the first pushing block pushes the needle bars of all cantilever probes on the stock tray to be level;

the displacement piece is controlled to drive the comb needle bar to move, so that the needle points of all cantilever probes on the stock disc are driven to swing downwards;

pushing the needle point limiting block to move along a second direction through the second driving piece so that the needle point limiting block abuts against the stock tray, and inserting the needle point of the cantilever probe on the stock tray into a positioning groove of the needle point limiting block;

and connecting the needle point limiting block with the stock disc.

In general, the above technical solutions conceived by the present invention have the beneficial effects compared with the prior art including:

for the needle loading device for cantilever probes provided by the embodiment of the invention, when the needles are loaded on the tray, firstly, the storage tray is placed on the conveying line, at this time, the storage tray is provided with a plurality of cantilever probes placed by the manipulator, and the needle bars are positioned on the storage tray (at this time, each needle bar extends along the second direction). And the storage tray is conveyed by the conveying line to move along a first direction, so that each cantilever probe is displaced to the correcting station. Then, the first pushing block is driven to move through the first driving piece (the travel of the first pushing block is consistent in the displacement process), so that the first pushing block pushes and pushes needle bars of cantilever probes on the storage tray to be flush (tail ends of the needle bars are flush in the second direction), and therefore each needle point extends out of the storage tray and reaches the same position, and the follow-up needle point can swing and is inserted into the needle point limiting block in a regular mode.

Then, the displacement member is controlled to drive the needle bar to move, so that the needle tips of the cantilever probes on the stock disc are driven to swing downwards, and the needle bar can be driven to move in the three-dimensional direction by the displacement member until the needle tips are adjusted to be downwards arranged. And then, continuously conveying the corrected stock tray to an assembly station through a conveying line, and pushing the needle point limiting block to move along a second direction through a second driving piece so as to enable the needle point limiting block to be propped against the stock tray. At this time, the needle points of all cantilever probes on the stock disc are just inserted into the corresponding positioning grooves on the needle point limiting block at the same time, so that the needle loading efficiency is improved, the whole process is convenient and reliable, the problem that the manual operation has higher requirements on the proficiency is avoided, and the production requirements are met. Finally, the needle point limiting block is connected with the stock tray (forming the stock tray), so that the stock tray with a plurality of cantilever probes which are orderly arranged and are required for the subsequent preparation of the cantilever-needle probe card is obtained, and the handling and needle taking back of the needle are facilitated.

That is, the needle mounting equipment for the cantilever probe provided by the embodiment of the invention effectively improves the needle mounting efficiency, is convenient and reliable in the whole process, avoids the problem of high requirements of manual operation on the proficiency, and meets the production requirements.

Drawings

FIG. 1 is a schematic diagram of a cantilever-probe needle-loading apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a conveying line according to an embodiment of the present invention;

FIG. 3 is a schematic view of a needle bar adjustment assembly according to an embodiment of the present invention;

FIG. 4 is a schematic view of a needle tip adjustment assembly according to an embodiment of the present invention;

FIG. 5 is an enlarged partial view of an embodiment of the present invention prior to tip calibration;

FIG. 6 is an enlarged partial view of a corrected tip provided by an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a tray according to an embodiment of the present invention;

FIG. 8 is an enlarged partial view of area A of FIG. 7;

FIG. 9 is an enlarged partial view of region B of FIG. 7;

FIG. 10 is an assembled view of a camera provided by an embodiment of the present invention;

fig. 11 is a flowchart of a method for loading a cantilever probe according to an embodiment of the present invention.

Like reference numerals denote like technical features throughout the drawings, in particular:

1. a base; 11. a camera support base; 111. a lens support base; 12. a linear sliding table; 2. a conveying line; 21. a mounting plate; 211. a proximity sensor; 212. a top strip; 22. fine tuning the sliding table; 3. a needle bar adjustment assembly; 31. a first push block; 311. a pushing part; 312. a connection part; 313. a pressure sensor; 32. a first driving member; 33. a manual sliding table; 4. a needle tip adjustment assembly; 41. a comb needle bar; 42. a displacement member; 421. a first linear motor; 422. a second linear motor; 423. a third linear motor; 424. a column; 43. a camera; 44. swing arms; 5. an assembling unit; 100. a stock tray; 200. a needle point limiting block; 210. a positioning groove; 300. a cantilever probe; 310. a needle bar; 320. a needle tip.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

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

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

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

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

Examples:

fig. 1 is a schematic structural diagram of a needle loading device for cantilever probes according to an embodiment of the present invention, and as shown in fig. 1, the needle loading device includes a conveying line 2, a needle bar adjusting assembly 3, a needle tip adjusting assembly 4, and an assembling unit 5, where the conveying line 2, the needle bar adjusting assembly 3, the needle tip adjusting assembly 4, and the assembling unit 5 are disposed along the conveying line 2.

Fig. 2 is a schematic structural diagram of a conveying line according to an embodiment of the present invention, as shown in fig. 2, the conveying line 2 extends along a first direction, and the conveying line 2 is used for conveying the storage tray 100 to move along the first direction (X direction).

Fig. 3 is a schematic structural diagram of a needle bar adjusting assembly according to an embodiment of the present invention, and as shown in fig. 3, the needle bar adjusting assembly 3 includes a first push block 31 and a first driving member 32, where the first driving member 32 is configured to drive the first push block 31 to move along a second direction, so that the first push block 31 pushes the needle bar of each cantilever probe 300 on the stock tray 100 to be flush.

Fig. 4 is a schematic structural diagram of a needle tip adjusting assembly according to an embodiment of the present invention, as shown in fig. 4, the needle tip adjusting assembly 4 includes a comb rod 41 and a displacement member 42, the comb rod 41 extends along a second direction (Y direction), the displacement member 42 is used for driving the comb rod 41 to move, so that the comb rod 41 adjusts the needle tip orientation of each cantilever probe 300 on the stock tray 100, and the comb rod 41 and the first push block 31 are located at two sides of the conveying line 2.

The assembly unit 5 includes a second driving member for pushing the needle tip stopper 200 to move along a second direction, so that the needle tip stopper 200 abuts against the stock tray 100.

In the needle loading device for cantilever probes according to the embodiment of the present invention, when loading needles on a tray, first, the tray 100 is placed on the conveyor line 2, where the tray 100 has a plurality of cantilever probes 300 placed thereon by a manipulator, and the needle bars 310 are located on the tray 100 (where each needle bar 310 extends along the second direction). And the stock tray 100 is transported by the transport line 2 to move in the first direction so that each cantilever probe 300 is displaced to the calibration station. Then, the first pushing block 31 is driven to move by the first driving piece 32 (the travel of the first pushing block 31 is consistent in the displacement process), so that the first pushing block 31 pushes the needle bars 310 of the cantilever probes 300 on the storage tray 100 to be flush (the tail ends of the needle bars are flush in the second direction), and each needle point 320 extends out of the storage tray 100 and is at the same position, so that the subsequent needle points swing and are regularly inserted into the needle point limiting block 200.

Then, the displacement member 42 is controlled to drive the comb bar 41 to move, so that the needle tips of the cantilever probes 300 on the stock tray 100 are driven to swing to downward arrangement, and the comb bar 41 can be driven by the displacement member 42 to move in the three-dimensional direction until the needle tips are adjusted to downward arrangement (see fig. 5 and 6). Then, the corrected stock tray 100 is continuously conveyed to the assembly station through the conveying line 2, and the needle point limiting block 200 is pushed to move along the second direction through the second driving piece, so that the needle point limiting block 200 abuts against the stock tray 100. At this time, the tips of the cantilever probes 300 on the stock tray 100 are just and simultaneously inserted into the corresponding positioning grooves 210 (see fig. 7, 8 and 9) on the tip limiting block 200, so that the needle loading efficiency is improved, the whole process is convenient and reliable, the problem that the manual operation has higher requirements on the proficiency is avoided, and the production requirements are met. Finally, the tip stopper 200 is connected with the stock tray 100 (forming a tray), thereby obtaining a tray with a plurality of cantilever probes 300 which are orderly arranged and are required for the subsequent preparation of the cantilever-needle probe card, and facilitating the handling and the needle insertion after the needle extraction.

Illustratively, the assembly unit 5 may further include a holder on which the needle tip stopper 200 is placed. The conveying line 2, the needle bar adjusting assembly 3, the needle tip adjusting assembly 4 and the assembling unit 5 are positioned on the base 1.

It should be noted that, one end of the needle rod 310 of the cantilever probe 300 is fixedly connected to one end of the needle tip 320, and the two forms a certain included angle.

Illustratively, the conveying line 2 may be a linear motor, and the accuracy may reach ±2um.

Referring again to fig. 2, the conveyor line 2 has a mounting plate 21 for carrying the stock trays 100, and the top surface of the mounting plate 21 has a plurality of positioning pins (not shown) arranged at intervals, each of which is for positioning the stock trays 100.

In the above embodiment, the limit of the storage tray 100 may be implemented by the positioning pin, so as to ensure that each needle bar 310 on the storage tray 100 extends along the second direction, so as to facilitate the subsequent adjustment of the needle bar and the needle point.

Illustratively, the number of the positioning pins may be 2, and 2 positioning pins are vertically arranged, and the positioning pins are inserted into corresponding positioning holes on the stock tray 100.

In this embodiment, the conveyor line 2 is provided with a fine adjustment sliding table 22, and an output end of the fine adjustment sliding table 22 is in transmission connection with the mounting plate 21 so as to adjust the position of the mounting plate 21 in the first direction.

It will be readily appreciated that after the tray 100 is placed on the mounting plate 21, the cantilever probes 300 are biased in the first direction due to errors in the processing and mounting of the tray 100. The positions of the mounting plate 21 and the stock disc 100 on the conveying line 2 can be finely adjusted through the fine adjustment sliding table 22, so that the precise displacement of each cantilever probe 300 to the correction station in the conveying process is ensured.

Further, a plurality of proximity sensors 211 are inserted on the mounting plate 21, and the plurality of proximity sensors 211 are used to detect the mounting flatness of the stock tray 100 and the mounting plate 21.

In the above embodiment, the proximity sensor 211 can detect the distance between the bottom surface of the storage tray 100 and the top surface of the mounting plate 21 after the storage tray 100 is placed, that is, detect the mounting flatness therebetween, and avoid the inclination of the storage tray 100, so that the storage tray 100 can be ensured to be tightly attached to the mounting plate 21 before being transported.

Illustratively, the number of position sensors 211 may be 2, arranged along a diagonal of the stock tray 100.

In addition, the top surface of the mounting plate 21 has a top bar 212, and the top bar 212 extends along the first direction, and a plurality of threaded top threads (not shown) arranged at intervals are inserted on the top bar 212, and each threaded top thread extends out of the top bar to be abutted against the stock tray 100.

Illustratively, the top bar 212 is located on one side of the storage tray 100. The threaded jackscrews can be adjusted and are propped against the storage tray 100 after extending out, so that the storage tray 100 is further positioned under the action of the positioning pins.

The first and second driving members 32 and 32 may be linear motors or cylinders, for example.

Illustratively, a protective cover may be provided above the base 1, while a case may be provided below the base 1 for storing various devices.

Referring again to fig. 3, the needle bar adjustment assembly 3 further comprises a manual slide 33, the manual slide 33 being located on the output end of the first driving member 32, the manual slide 33 being adapted to drive the first push block 31 to move in the first direction.

In the above embodiment, the manual sliding table 33 can accurately adjust the position of the first push block 31 in the first direction, and ensure the mounting accuracy of each first push block 31, thereby accurately pushing the needle bar on the correction station.

In one implementation of the invention, the dimension of the push end surface a of the first push block 31 facing the conveying line 2 is larger than the pitch b of the pins of two adjacent cantilever probes on the stock tray 100 in the first direction. Therefore, at this time, the first push block 31 is displaced at a time to correct at least 2 needle bars, so that the correction efficiency of the needle bars can be improved.

Preferably, the dimension of the pushing end face a of the first pushing block 31 facing the conveying line 2 in the first direction does not exceed the pitch b of the needle bars of two adjacent cantilever probes on the stock tray 100. Therefore, the first push block 31 is displaced only for 1 needle bar at a time at this time (this time can be regarded as point-to-point contact), and the control accuracy is higher.

It is easy to understand that, when the first pushing block 31 pushes the plurality of needle bars simultaneously, the area of the pushing end surface a is larger, and the corresponding needle bars are not stressed uniformly, so that the linear displacement of the plurality of needle bars cannot be ensured. In addition, the flatness of the pushing end face a is required to be large, the pushing distance of each needle bar cannot be guaranteed to be consistent, and meanwhile, the camera view cannot accommodate a plurality of needle points.

Illustratively, the first push block 31 includes a push portion 311 and a connection portion 312, the push portion 311 is in transmission connection with the output end of the first driving member 32, a pressure sensor 313 is sandwiched between the push portion 311 and the connection portion 312, and the pressure sensor 313 is used for detecting the pressure applied to the push portion 311, so as to avoid deformation of the needle bar caused by excessive pressure of the first push block 31 during movement.

Illustratively, the connecting portion 312 may be an L-shaped structure with the connecting portion 312 being located on the manual slipway 33. Both ends of the pressure sensor 313 are inserted in the pushing portion 311 and the connecting portion 312, respectively. In addition, the pushing portion 311 may have a T-shaped structure.

In one implementation of the present invention, the tip adjustment assembly 4 further includes a camera 43, an image processor, and a controller, where the camera 43 is used for photographing the tip of each cantilever probe 300 on the stock tray 100, the camera 43 and the first pushing block 31 are arranged opposite to each other, the camera 43, the image processor, and the controller are electrically connected in sequence, and the controller is electrically connected with the displacement member 42.

In the above embodiment, the controller can automatically control the displacement member 42, and the correction of the needle tip can be automatically realized after the analysis processing of the image obtained by photographing, so that the correction efficiency is improved, and manual observation is not required.

Illustratively, the camera 43 is opposite to the cantilever probe 300 and photographs the tip of the cantilever probe 300, the camera 43 transmits the photographs to the image processor, the image processor processes and analyzes the photographs to obtain signals such as the deflection angle α of the tip of the cantilever probe 300 and the orientation of the tip, and the controller receives the signals and then controls the displacement member 42 to act, thereby driving the needle bar 41 to displace to a corresponding position to swing the tip. When the downward needle point deflection angle is not more than +/-1.5 degrees, the controller does not control the displacement member 42 to work, the needle point deflection angle of the cantilever probe 300 meets the requirement, and correction is not needed, so that the correction efficiency is improved. When the deflection angle exceeds ±1.5°, the camera 43 performs photographing again, and the above steps are repeated until the deflection angle of the tip is corrected to ±1.5°.

Further, the displacement member 42 includes a first linear motor 421, a second linear motor 422, and a third linear motor 423, where the first linear motor 421 is located on the base 1, and the first linear motor 421 is used to drive the second linear motor 422 to move along the second direction, so as to move the needle bar 41 in the second direction. The second linear motor 422 is used for driving the third linear motor 423 to move along the first direction, so as to move the needle bar 41 in the first direction, and the third linear motor 423 is used for driving the needle bar 41 to move along the third direction (Z direction), so as to move the needle bar 41 in the third direction.

Illustratively, the displacement member 42 further includes a stand 424, the stand 424 extends along a third direction, one end of the stand 424 is drivingly connected to the output end of the second linear motor 422, and the third linear motor 423 is located on the other end of the stand 424.

It is to be readily understood that the upright post 424 can increase the initial height of the third linear motor 423 to function as a step up of the needle bar 41.

In addition, in order to avoid interference of the displacement member 42 with photographing of the camera 43, the output end of the third linear motor 423 is connected to the needle bar 41 through the swing arm 44. Wherein the swing arm 44 may be an L-shaped structure.

Fig. 10 is an assembly schematic diagram of a camera provided in an embodiment of the present invention, as shown in fig. 10, the base 1 has a camera support seat 11 and a linear sliding table 12, the linear sliding table 12 is located on the camera support seat 11, and the linear sliding table 12 is used for driving the camera 43 to move along the second direction.

In the above embodiment, the camera support base 11 supports the linear sliding table 12, and the linear sliding table 12 can focus the camera 43.

Illustratively, the lens support base 111 is detachably mounted on the camera support base 11, and after focusing of the camera 43 is completed, the lens of the camera 43 is supported by the lens support base 111.

Fig. 11 is a flowchart of a method for loading a cantilever probe according to an embodiment of the present invention, as shown in fig. 11, where the method for loading a cantilever probe is based on the above-mentioned loading device, and the method for loading a cantilever probe includes:

s1, placing a storage tray 100 on a conveying line 2, and conveying the storage tray 100 to move along a first direction through the conveying line 2.

S2, the first pushing block 31 is driven to move through the first driving piece 32, so that the first pushing block 31 pushes the needle bars of the cantilever probes 300 on the storage tray 100 to be level.

S3, the control displacement piece 42 drives the comb needle bar 41 to move, so that the needle tips of the cantilever probes 300 on the stock tray 100 are driven to swing to downward arrangement.

S4, pushing the needle point limiting block 200 to move along the second direction through the second driving piece, so that the needle point limiting block 200 is propped against the stock tray 100, and the needle point of the cantilever probe 300 on the stock tray 100 is inserted into the positioning groove 210 of the needle point limiting block 200.

S5, connecting the needle point limiting block 200 with the stock tray 100.

Illustratively, the needle tip stopper 200 and the stock tray 100 may be connected by bolts.

The needle mounting method of the cantilever probe, provided by the embodiment of the invention, effectively improves the needle mounting efficiency, is convenient and reliable in the whole process, avoids the problem of high requirements of manual operation on the proficiency, and meets the production requirements.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. The needle loading device of the cantilever probe is characterized by comprising a conveying line, a needle bar adjusting assembly, a needle point adjusting assembly and an assembling unit, wherein the needle bar adjusting assembly, the needle point adjusting assembly and the assembling unit are arranged along the conveying line;

the needle point adjusting assembly comprises a comb needle rod and a displacement piece, wherein the comb needle rod extends along a second direction, the displacement piece is used for driving the comb needle rod to move in a three-dimensional direction, so that the comb needle rod adjusts the needle point orientation of each cantilever probe on the stock disc, the comb needle rod and the first pushing block are positioned on two sides of the conveying line, and one end of the needle rod of each cantilever probe is fixedly connected with one end of the needle point and forms an included angle;

2. The needle mounting device for the cantilever probe according to claim 1, wherein the first pushing block comprises a pushing part and a connecting part, the pushing part is in transmission connection with the output end of the first driving part, a pressure sensor is clamped between the pushing part and the connecting part, and the pressure sensor is used for detecting the pressure applied to the pushing part.

3. The needle mounting device for the cantilever-probe according to claim 1, wherein the needle tip adjusting assembly further comprises a camera, an image processor and a controller, the camera is used for photographing the needle tip of each cantilever-probe on the stock tray, the camera and the first pushing block are arranged opposite to each other, the camera, the image processor and the controller are electrically connected in sequence, and the controller is electrically connected with the displacement member.

4. The needle mounting device for the cantilever-probe according to claim 3, wherein the displacement member comprises a first linear motor, a second linear motor and a third linear motor, the first linear motor is used for driving the second linear motor to move along a second direction, the second linear motor is used for driving the third linear motor to move along the first direction, the third linear motor is used for driving the needle bar to move along the third direction, and the controller is respectively electrically connected with the first linear motor, the second linear motor and the third linear motor.

5. The needle mounting apparatus for a cantilever probe according to any one of claims 1-4, wherein the conveyor line is a linear motor, the conveyor line has a mounting plate for carrying the stock tray, the top surface of the mounting plate has a plurality of positioning pins arranged at intervals, and each positioning pin is used for positioning the stock tray.

6. The needle mounting apparatus for cantilever probe according to claim 5, wherein the conveyor line has a fine tuning slide, and wherein the output end of the fine tuning slide is drivingly connected to the mounting plate to adjust the position of the mounting plate in the first direction.

7. The cantilever-probe loading apparatus of claim 5, wherein a plurality of proximity sensors are inserted on the mounting plate, the plurality of proximity sensors being configured to detect the flatness of the mounting of the stock tray and the mounting plate.

8. The needle mounting apparatus for a cantilever probe of claim 5, wherein the top surface of the mounting plate has a top bar extending in a first direction, the top bar having a plurality of spaced threaded top threads inserted thereon, each of the threaded top threads extending beyond the top bar to abut the stock tray.

9. The cantilever-probe loading apparatus of any one of claims 1-4, wherein the dimension of the first pusher toward the pusher end of the conveyor line in the first direction does not exceed the pitch of the pins of two adjacent cantilever probes on the stock tray.

10. A needle loading method of a cantilever probe, characterized in that the needle loading method is based on the needle loading device according to any one of claims 1-9, the needle loading method comprising:

and connecting the needle point limiting block with the stock disc.