A linkage type transfer pin testing mechanism

By designing a linkage adapter needle test mechanism, multi-stage signal transfer is achieved by linkage of pressure plate, carrier plate and needle plate components, the problem of difficulty in testing multiple sets of soft line products in the prior art is solved, and the testing efficiency and signal quality are improved.

CN119780793APending Publication Date: 2025-04-08INTELLIGENT AUTOMATION ZHUHAI CO LTD
View PDF 0 Cites 2 Cited by

Patent Information

Application Number
CN202411920410.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-04-08

AI Technical Summary

Technical Problem

The prior art is difficult to test multiple sets of products simultaneously when testing soft cable products, and the signal transmission quality is disturbed by external interference, which can easily lead to signal distortion or loss, and the testing efficiency is low.

Method used

A linkage adapter pin testing mechanism is designed to realize multi-stage signal adapter and integration through the linkage of pressure plate components, carrier plate components and needle plate components, and support the testing of multiple sets of products at the same time.

Benefits of technology

Simultaneous testing of 12 sets of soft cable products is realized. Through multi-stage linkage devices and signal adaptation modules, the risk of signal interference is reduced, and the testing efficiency and signal quality are improved.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119780793A_ABST
    Figure CN119780793A_ABST
Patent Text Reader

Abstract

The present invention discloses a linkage-type adapter needle testing mechanism, which aims to provide a linkage-type adapter needle testing mechanism with a simple structure, in which various pressure heads are linked and pressed in different time sequences to realize different functions, and then the scattered signals are integrated together through multi-level signal switching, and multiple groups of products can be tested simultaneously, so as to provide a more efficient linkage-type adapter needle testing mechanism. The present invention includes a pressure plate assembly, a carrier plate assembly and a needle plate assembly, wherein the carrier plate assembly includes a carrier plate bottom plate and a plurality of product carriers, the pressure plate assembly includes a pressure plate, a floating plate and a plurality of pressure head modules, the needle plate assembly includes a needle plate base, a plurality of side-push needle modules, a plurality of adapter needle modules and a plurality of probe modules, and the plurality of pressure plate assemblies drive the plurality of side-push needle modules, the adapter needle modules and the probe modules to cooperate with the products on the product carriers. The present invention is applied to the technical field of product testing.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention is applied to the technical field of product testing, and particularly relates to a linkage type adapter pin testing mechanism. Background Art

[0002] As all kinds of electronic products become thinner, smaller and more integrated, the functions of products are increasing. Inside the products, various components are connected and conducted using products such as soft flat cables to meet the coordination or linkage of various functions. Soft flat cable products are relatively soft, highly customized, and can adapt to various installation environments. Their own flexible deformation can ensure that the product remains stable during high temperatures. However, during the production process of soft flat cable products, multiple contacts of soft flat cable products need to be powered on for testing. Due to the irregular shape of soft flat cable products, a large number of signals need to be transmitted when testing the products, which puts higher requirements on the signal transmission quality. Since the positions of multiple groups of contacts are relatively close, it is difficult to perform simultaneous needle insertion tests during the test process. At present, different test components are mainly used to independently insert needles on each contact of the soft flat cable product, and each signal is transmitted to the test system in turn through signal transfer equipment. This method will bring more external interference to the signal to be tested, which will cause signal distortion or loss. In addition, this method requires manual testing, and only one group of soft flat cable products can be tested at a time, which is inefficient. If a simple structure can be designed in which various pressure heads are linked to each other in different timings to realize different functions, and then the scattered signals can be integrated together through multi-level signal switching, and multiple groups of products can be tested at the same time, a more efficient linkage adapter pin testing mechanism can be designed, then the above problems can be solved. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a linkage adapter pin testing mechanism with a simple structure, in which various pressure heads are linked to press in different time sequences to realize different functions, and the scattered signals are integrated together through multi-level signal switching, and multiple groups of products can be tested at the same time, which is more efficient.

[0004] The technical solution adopted by the present invention is: the present invention includes a pressure plate assembly, a carrier plate assembly and a needle plate assembly, the carrier plate assembly includes a carrier plate bottom plate and a number of product carriers, the pressure plate assembly includes a pressure plate, a floating plate and a number of pressure head modules, the needle plate assembly includes a needle plate base, a number of side push needle modules, a number of adapter needle modules and a number of probe modules, and a number of pressure plate assemblies drive the number of side push needle modules, the adapter needle modules and the probe modules to cooperate with the products on the product carriers.

[0005] Furthermore, several product carriers are arranged at the upper end of the carrier bottom plate, and the product carrier includes a product carrier, a product signal adapter plate and a product side push block. The product carrier is provided with a product limiting groove, and the product is limitedly matched with the product limiting groove. The product side push block is arranged on one side of the product limiting groove, and the pressing end of the product side push block is provided with a plurality of first floating springs, and the driving end of the product side push block is provided with a rolling pin. The side push bead end of the pressure head module drives the pressing end of the product side push block to cooperate with the product through the rolling pin, and the product signal adapter plate is arranged on the lower end surface of the product carrier and is connected and conductive with the product.

[0006] Furthermore, the floating plate is arranged at the lower end of the pressure plate, and several pressure head modules are arranged at the upper end of the floating plate. The pressure head module includes a side thrust module, a SIP pressure head module and a BB pressure head module. The SIP pressure head module includes a SIP pressure block, a SIP pressure head and a first oar-shaped block. The SIP pressure head and the first oar-shaped block are both floatingly connected to the lower end of the SIP pressure block through a second buffer spring, the oar-shaped surface of the first oar-shaped block cooperates with the rolling pin, and the pressing end of the SIP pressure block cooperates with the product.

[0007] Furthermore, the BB pressure head module includes a BB pressure block and a BB pressure head, the BB pressure head is floatingly connected to the BB pressure block through a third buffer spring, the BB pressure head cooperates with the BB end of the product, the side push module includes a side push pressure block and a side push oar-shaped block, the side push oar-shaped block is floatingly connected to the lower end of the side push pressure block through a fourth buffer spring, and the oar-shaped surface of the side push oar-shaped block passes through the bottom plate of the carrier plate and cooperates with the corresponding side push needle mold roller end on the needle plate base.

[0008] Furthermore, the side-push needle mold includes a side-push base, a side-push floating block and a SIP needle mold. The side-push base and the side-push floating block are slidably matched with the needle plate base through a slide rail. The side-push base and the side-push floating block are respectively connected to the two sliding ends of the slide rail. A fifth floating spring is arranged between the side-push base and the side-push floating block. The SIP needle mold is arranged at the pressing end of the side-push floating block. The side-push base is provided with a side-push roller. The side-push oar-shaped block drives the SIP needle mold to cooperate with the product through the side-push roller.

[0009] Furthermore, the adapter needle module includes an upper needle block, an adapter plate and a lower needle block, the adapter plate is arranged between the upper needle block and the lower needle block, a plurality of upper needle block probes at the upper end of the upper needle block cooperate with the probe module, and the lower needle block is provided with a plurality of adapter posts.

[0010] Furthermore, the probe module includes a probe base, a probe adapter plate and a BB needle mold. The upper and lower ends of the probe adapter plate are respectively floated with the BB needle mold and the probe base through a floating module. The probe end of the BB needle mold is connected and conducted with the BB end of the product through the product signal adapter plate, and several of the upper needle block probes are connected and conducted with the lower end of the BB needle mold through the probe adapter plate.

[0011] Furthermore, a plurality of anti-overpressure springs are arranged on the upper end surface of the needle plate base, and the carrier plate bottom plate is floatingly connected to the needle plate base through the plurality of anti-overpressure springs and a plurality of equal-height screws.

[0012] Furthermore, a top plate is provided at the upper end of the pressing plate, the top plate is connected to the pressing plate via a plurality of supporting columns, and the top plate is connected to an external pressing mechanism.

[0013] Furthermore, the carrier bottom plate is provided with a plurality of first positioning guide sleeves, and the plurality of first positioning guide sleeves cooperate with the plurality of first positioning guide shafts at the lower end of the pressure plate; the needle plate base is provided with a plurality of second positioning guide sleeves, and the plurality of second positioning guide sleeves cooperate with the plurality of second positioning guide shafts at the lower end of the carrier bottom plate.

[0014] The beneficial effects of the present invention are as follows: the present application is provided with 12 groups of test stations, which can realize the simultaneous testing of up to 12 groups of soft cable products, and the multi-stage linkage device can realize pre-pressure positioning and then press down the probe, and the various pressure heads of the bottom probe module and the side push needle block press the multi-stage linkage down needle in different time sequences, which can realize the multi-down needle of the product and meet the multi-functional synchronous testing of the product, and then the test signals of each test needle block are synchronized and concentrated through the multi-stage adapter module, which can effectively reduce the interference of the test guarantee signal by external factors and prevent signal distortion or loss, and the structure is simple and the test efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a stereoscopic view of the present invention; Figure 2 is an exploded view of the carrier assembly; Figure 3 is a three-dimensional view of the pressure plate assembly; Figure 4 is a three-dimensional view of the needle plate assembly; Figure 5 It is a three-dimensional schematic diagram of the coordination of the linked needle lowering components; Figure 6 is a stereoscopic view of the product carrier; Figure 7 is an exploded view of the thrust module; Figure 8 is an exploded view of the SIP pressure head module; Fig. 9 is an exploded view of the B2B pressure head module; Fig.10 is an exploded view of the probe module; Fig.11 is an exploded view of the side push pin mold; Fig.12 is an exploded view of the adapter pin module. DETAILED DESCRIPTION

[0016] like Figures 1 to 12 As shown, in this embodiment, the present invention includes a pressing plate assembly 1, a carrier assembly 2 and a needle plate assembly 3, the carrier assembly 2 includes a carrier bottom plate 4 and a plurality of product carriers 5, the pressing plate assembly 1 includes a pressing plate 6, a floating plate 7 and a plurality of pressure head modules 8, the needle plate assembly 3 includes a needle plate base 9, a plurality of side push needle modules 10, a plurality of adapter needle modules 11 and a plurality of probe modules 12, and a plurality of pressing plate assemblies 1 drive the plurality of side push needle modules 10, the adapter needle modules 11 and the probe modules 12 to cooperate with the product 13 on the product carrier 5. It can be seen that the pressing plate assembly 1, the carrier assembly 2 and the needle plate assembly 3 are all provided with 12 groups of acupuncture points, which can ensure that the pressing mechanism, the testing mechanism and the product can correspond one to one, and ensure the test independence of the 12 groups of products.

[0017] like Figure 2 and Figure 5 As shown, in the present embodiment, a plurality of the product carriers 5 are arranged at the upper end of the carrier bottom plate 4, the product carrier 5 comprises a product carrier plate 51, a product signal adapter plate 52 and a product side push block 53, the product carrier plate 51 is provided with a product limiting groove 54, the product 13 is limitedly matched with the product limiting groove 54, the product side push block 53 is arranged on one side of the product limiting groove 54, a plurality of first floating springs 55 are arranged at the pressing end of the product side push block 53, a rolling pin 56 is arranged at the driving end of the product side push block 53, the side push bead end of the pressure head module 8 drives the pressing end of the product side push block 53 to match with the product 13 through the rolling pin 56, the product signal adapter plate 52 is arranged on the lower end surface of the product carrier plate 51 and is connected and conducted with the product 13. It can be seen that the rolling pin 56 rotates and cooperates with the driving end of the product side push block 53, and can cooperate with the yoke-shaped surface to drive the product side push block 53 to push and press the main part of the product 13, and the first floating springs 55 achieve the effect of buffering and resetting.

[0018] like Figure 3 , Figure 5 as well as Figure 8As shown, in this embodiment, the floating plate 7 is arranged at the lower end of the pressure plate 6, and the plurality of pressure head modules 8 are arranged at the upper end of the floating plate 7. The pressure head module 8 includes a side push module 81, a SIP pressure head module 82 and a B2B pressure head module 83. The SIP pressure head module 82 includes a SIP pressure block 821, a SIP pressure head 822 and a first oar-shaped block 823. The SIP pressure head 822 and the first oar-shaped block 823 are both floatingly connected to the lower end of the SIP pressure block 821 through a second buffer spring 824. The oar-shaped surface of the first oar-shaped block 823 cooperates with the rolling pin 56, and the pressing end of the SIP pressure block 821 cooperates with the product 13. It can be seen that the side push module 81 pushes the needle down on the outside of the product, and the SIP pressure head module 82 and the B2B pressure head module 83 respectively press the upper end and the B2B end of the product 13, and the first bevel block 823 drives the product side push block 53 to press the product 13.

[0019] like Figure 7 and Fig. 9 As shown, in this embodiment, the B2B pressure head module 83 includes a B2B pressure block 831 and a B2B pressure head 832, the B2B pressure head 832 is connected to the B2B pressure block 831 in a floating manner through a third buffer spring 833, the B2B pressure head 832 cooperates with the B2B end of the product 13, the side push module 81 includes a side push pressure block 811 and a side push bevel block 812, the side push bevel block 812 is connected to the lower end of the side push pressure block 811 in a floating manner through a fourth buffer spring 813, the bevel surface of the side push bevel block 811 passes through the carrier bottom plate 4 and cooperates with the roller end of the side push needle mold 10 corresponding to the needle plate base 9. It can be seen that the B2B pressure head 832 fixes the B2B end of the product 13 on the product carrier 5, and the side push module 81 drives the side push needle mold 10 to perform transverse needle insertion on the product.

[0020] like Figure 5 and Fig.11As shown, in this embodiment, the side-push needle mold 10 includes a side-push base 101, a side-push floating block 102 and a SIP needle mold 103. The side-push base 101 and the side-push floating block 102 are slidably matched with the needle plate base 9 through a slide rail 104. The side-push base 101 and the side-push floating block 102 are respectively connected to the two sliding ends of the slide rail 104. A fifth floating spring 105 is arranged between the side-push base 101 and the side-push floating block 102. The SIP needle mold 103 is arranged at the pressing end of the side-push floating block 102. The side-push base 101 is provided with a side-push roller 106. The side-push oar-shaped block 812 drives the SIP needle mold 103 to cooperate with the product 13 through the side-push roller 106. It can be seen that the side-push oval block 812 has its oval surface descended and contacts and cooperates with the driving side-push roller 106, so that the side-push base 101 can move lateraly, and the SIP needle mold 103 on the side-push floating block 102 is driven to push the product 13 sideways downward through a number of the fifth floating springs 105.

[0021] like Figure 4 , Figure 5 as well as Fig.12 As shown, in this embodiment, the adapter needle module 11 includes an upper needle block 111, an adapter plate 112 and a lower needle block 113. The adapter plate 112 is arranged between the upper needle block 111 and the lower needle block 113. A plurality of upper needle block probes 114 at the upper end of the upper needle block 111 cooperate with the probe module 12. The lower needle block 113 is provided with a plurality of adapter posts 115. It can be seen that the adapter needle module 11 transmits the test signal to the external test equipment through the plurality of adapter posts 115.

[0022] like Figure 5 and Fig.10 As shown, in this embodiment, the probe module 12 includes a probe base 121, a probe adapter plate 122 and a B2B needle mold 123. The upper and lower ends of the probe adapter plate 122 are respectively matched with the B2B needle mold 121 and the probe base 121 through floating modules. The probe end of the B2B needle mold 123 is connected and conducted with the B2B end of the product 13 through the product signal adapter plate 52. A plurality of upper needle block probes 114 are connected and conducted with the lower end of the B2B needle mold 123 through the probe adapter plate 122. It can be seen that the probe module 12 is provided with two layers of floating. The upper floating module ensures that the B2B needle mold 123 is accurately positioned with the connector and can realize adaptive adjustment. The lower floating module prevents the B2B needle mold 123 from overpressing the product 13.

[0023] like Figure 1 and Figure 4As shown, in this embodiment, a plurality of anti-overpressure springs 14 are arranged on the upper end surface of the needle plate base 9, and the carrier bottom plate 4 is floatingly connected to the needle plate base 9 through the plurality of anti-overpressure springs 14 and the plurality of equal height screws 15. It can be seen that the plurality of anti-overpressure springs 14 and the plurality of equal height screws 15 can prevent the uneven force during the downward pressing of the carrier bottom plate 4, resulting in overpressure or needle displacement on one side of the product.

[0024] like Figure 1 and Figure 3 As shown, in this embodiment, a top plate 16 is provided on the upper end of the pressing plate 6, and the top plate 16 is connected to the pressing plate 6 through a plurality of support columns 17, and the top plate 16 is connected to an external pressing mechanism. It can be seen that the top plate 16 can be connected to an external lifting mechanism to achieve efficient downward pressing test.

[0025] like Figure 1 , Figure 3 as well as Figure 4 As shown, in this embodiment, the carrier bottom plate 4 is provided with a plurality of first positioning guide sleeves 18, and the plurality of first positioning guide sleeves 18 cooperate with the plurality of first positioning guide shafts 19 at the lower end of the pressing plate 6, and the needle plate base 9 is provided with a plurality of second positioning guide sleeves 20, and the plurality of second positioning guide sleeves 20 cooperate with the plurality of second positioning guide shafts 21 at the lower end of the carrier bottom plate 4. It can be seen that the plurality of first positioning guide sleeves 18 and the plurality of second positioning guide sleeves 20 play a role in downward positioning, so as to prevent damage to the product due to inaccurate downward positioning.

[0026] The working principle of the present invention is as follows: before the equipment is started, 12 groups of the products 13 to be tested are placed in the product limiting grooves 54 of the product carrier plate 51 to complete preliminary positioning. After the equipment is started, the pressing plate 6 drives the floating plate 7 to press down, and the SIP pressing head 822 contacts the product 13 to achieve positioning in the Z-axis direction. The first yoke-shaped block 823 drives the product side pushing block 53 to push sideways to achieve positioning in the X-axis direction of the product 13. The B2B pressing head 832 synchronously presses the B2B end of the product 13 to achieve positioning in multiple directions of the product 13. The pressing plate 6 drives the The carrier bottom plate 4 continues to be pressed down, and the B2B needle mold 123 contacts the B2B end of the product 13 to achieve conduction. The side-push bevel-shaped block 812 cooperates with the side-push roller 106 to push the SIP needle mold 103 sideways to push the product 13 sideways to perform needle insertion. Through the product signal adapter plate 52 and the adapter plate 112, multiple groups of test signal lines are connected and synchronously transmitted to an external testing organization through several of the adapter columns 115. After the test is completed, the pressure plate assembly 1 is reset, and the 12 groups of products 13 to be tested are replaced. Repeating the above steps can realize the linkage adapter needle test of multiple groups of products.

[0027] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A linkage type transfer pin testing mechanism, comprising a pressure plate assembly (1), a carrier plate assembly (2) and a pin plate assembly (3), characterized in that: The carrier assembly (2) includes a carrier base plate (4) and a plurality of product carriers (5); the pressure plate assembly (1) includes a pressure plate (6), a floating plate (7) and a plurality of pressure head modules (8); the needle plate assembly (3) includes a needle plate base (9), a plurality of side push needle modules (10), a plurality of adapter needle modules (11) and a plurality of probe modules (12); the plurality of pressure plate assemblies (1) drive the plurality of side push needle modules (10), the adapter needle modules (11) and the probe modules (12) to cooperate with the products (13) on the product carriers (5).

2. The linkage type adapter pin testing mechanism according to claim 1, characterized in that: A plurality of product carriers (5) are arranged on the upper end of the carrier bottom plate (4), the product carrier (5) comprising a product carrier plate (51), a product signal transfer plate (52) and a product side push block (53), the product carrier plate (51) being provided with a product limiting groove (54), the product (13) being limitedly matched with the product limiting groove (54), the product side push block (53) being arranged on one side of the product limiting groove (54), a plurality of first floating springs (55) being arranged at the pressing end of the product side push block (53), a rolling pin (56) being arranged at the driving end of the product side push block (53), the side push yoke end of the pressure head module (8) driving the pressing end of the product side push block (53) to match with the product (13) through the rolling pin (56), the product signal transfer plate (52) being arranged on the lower end surface of the product carrier plate (51) and being connected and conductively connected with the product (13).

3. The linkage type adapter pin testing mechanism according to claim 2, characterized in that: The floating plate (7) is arranged at the lower end of the pressure plate (6); a plurality of pressure head modules (8) are arranged at the upper end of the floating plate (7); the pressure head module (8) comprises a side push module (81), a SIP pressure head module (82) and a B2B pressure head module (83); the SIP pressure head module (82) comprises a SIP pressure block (821), a SIP pressure head (822) and a first bevel-shaped block (823); the SIP pressure head (822) and the first bevel-shaped block (823) are both floatingly connected to the lower end of the SIP pressure block (821) via a second buffer spring (824); the bevel-shaped surface of the first bevel-shaped block (823) cooperates with the rolling pin (56); and the pressing end of the SIP pressure block (821) cooperates with the product (13).

4. The linkage type adapter pin testing mechanism according to claim 3, characterized in that: The B2B pressure head module (83) comprises a B2B pressure block (831) and a B2B pressure head (832), wherein the B2B pressure head (832) is floatingly connected to the B2B pressure block (831) via a third buffer spring (833), and the B2B pressure head (832) cooperates with the B2B end of the product (13). The side push module (81) comprises a side push pressure block (811) and a side push yoke-shaped block (812), wherein the side push yoke-shaped block (812) is floatingly connected to the lower end of the side push pressure block (811) via a fourth buffer spring (813), and the yoke-shaped surface of the side push yoke-shaped block (811) passes through the carrier bottom plate (4) and cooperates with the roller end of the side push needle mold (10) corresponding to the needle plate base (9).

5. The linkage type adapter pin testing mechanism according to claim 4, characterized in that: The side-push needle mold (10) comprises a side-push base (101), a side-push floating block (102) and a SIP needle mold (103); the side-push base (101) and the side-push floating block (102) are slidably matched with the needle plate base (9) via a slide rail (104); the side-push base (101) and the side-push floating block (102) are respectively connected to two sliding ends of the slide rail (104); a fifth floating spring (105) is provided between the side-push base (101) and the side-push floating block (102); the SIP needle mold (103) is provided at the pressing end of the side-push floating block (102); the side-push base (101) is provided with a side-push roller (106); the side-push yoke-shaped block (812) drives the SIP needle mold (103) to match with the product (13) via the side-push roller (106).

6. The linkage type transfer pin testing mechanism according to claim 2, characterized in that: The adapter needle module (11) comprises an upper needle block (111), an adapter plate (112) and a lower needle block (113); the adapter plate (112) is arranged between the upper needle block (111) and the lower needle block (113); a plurality of upper needle block probes (114) at the upper end of the upper needle block (111) cooperate with the probe module (12); and the lower needle block (113) is provided with a plurality of adapter posts (115).

7. The linkage type transfer pin testing mechanism according to claim 6, characterized in that: The probe module (12) comprises a probe base (121), a probe adapter plate (122) and a B2B needle mold (123); the upper and lower ends of the probe adapter plate (122) are respectively floated with the B2B needle mold (121) and the probe base (121) through floating modules; the probe end of the B2B needle mold (123) is connected and conducted with the B2B end of the product (13) through the product signal adapter plate (52); and a plurality of upper needle block probes (114) are connected and conducted with the lower end of the B2B needle mold (123) through the probe adapter plate (122).

8. The linkage type transfer pin testing mechanism according to claim 1, characterized in that: The upper end surface of the needle plate base (9) is provided with a plurality of overpressure prevention springs (14), and the carrier base plate (4) is floatingly connected to the needle plate base (9) via the plurality of overpressure prevention springs (14) and a plurality of equal height screws (15).

9. The linkage type adapter pin testing mechanism according to claim 1, characterized in that: A top plate (16) is provided at the upper end of the pressing plate (6); the top plate (16) is connected to the pressing plate (6) via a plurality of support columns (17); and the top plate (16) is connected to an external pressing mechanism.

10. The linkage type transfer pin testing mechanism according to claim 1, characterized in that: The carrier base plate (4) is provided with a plurality of first positioning guide sleeves (18), and the plurality of first positioning guide sleeves (18) cooperate with a plurality of first positioning guide shafts (19) at the lower end of the pressure plate (6); the needle plate base (9) is provided with a plurality of second positioning guide sleeves (20), and the plurality of second positioning guide sleeves (20) cooperate with a plurality of second positioning guide shafts (21) at the lower end of the carrier base plate (4).

Citation Information

Cited By

  • Dynamic probe alignment test structure

    CN120722035A

  • A dynamic probe alignment test structure

    CN120722035B