CN211428437U

CN211428437U - Flexible test head

Info

Publication number: CN211428437U
Application number: CN202020357585.3U
Authority: CN
Inventors: 白红彬
Original assignee: Shenzhen Kenaite Precision Technology Co ltd
Current assignee: Shenzhen Kenaite Precision Technology Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-09-04
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses a flexible test head, which comprises a floating guide part, a base part, a test head fixed end, a test head flexible end, a flexible connecting line, a pressure sensor and an elastic medium, wherein the pressure sensor is arranged between the elastic medium and the base part, the test head fixed end is electrically connected with the test head flexible end through the flexible connecting line, the test head flexible end and the base part are detachably connected with the floating guide part, the floating guide part is arranged between the test head flexible end and the base part, the floating guide part comprises a guide block and a floating positioning block, one end of the floating positioning block is connected with the test head flexible end, the other end of the floating positioning block is connected with the base part through the elastic medium, a guide structure is arranged between the guide block and the floating positioning block, the guide structure enables the central line of the flexible end of the test head to be always positioned on the central line of the guide block in a free state.

Description

Flexible test head

Technical Field

The utility model relates to a technical field such as hardware interface, test and communication, concretely relates to flexible test head.

Background

Along with the progress of scientific technology, the manufacturing technology of the electronic product industry is rapidly developed, the requirement on the automation degree in the production process is higher and higher, the test of the electronic product is gradually changed to automatic test by manual operation under the environment background, and the design and manufacturing difficulty of the automatic plugging mechanism for signal connection between IO interfaces such as USB, HDMI, Type-C and the like and a test system end is higher and higher in the test process due to the higher requirement on the consistency of the automatic test on a test machine.

At present, the mode that is used for signal connection between IO interfaces such as USB, HDMI and the test system end mainly adopts USB, HDMI, Type-C data line or connects through the adapter, and the main problem that exists has following several at present:

1. the consistency difference is large: the conventionally used data line shell is only used for protection, and the difference is large; certain differences exist among products;

2. the service life is low: in the use process, due to difference, the alignment is not accurate, the abrasion is increased, and the service life is greatly reduced;

3. damage products: due to the difference problem, the automatic plugging and unplugging cannot be operated flexibly like manual operation, if the alignment is not correct, the plug can be damaged, and if the alignment is not correct, the product can be damaged;

4. the maintenance is inconvenient: due to the fact that differences among the data lines are large, the data lines need to be aligned again during replacement, maintenance time is too long, and normal production of a production line is affected;

5. the fixed structure effect is poor: in order to reduce the difference between the data lines and products, engineers design mechanisms such as springs and the like to be influenced by processing, wire rods and the like in many aspects, and the effect is not ideal, so that customers still adopt a manual mode for safety to influence the pushing of automatic testing.

In addition to the above problems, alignment guidance of the automatic plugging mechanism is also one of important indexes affecting product testing, and the problems of inaccurate alignment and damage to products caused by hard plugging due to differences in product consistency are still not effectively improved, so a mechanism is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a flexible test head to increase test security, reduce the spoilage, improve whole work efficiency, more accurate, better protection product provides the basis for the automatic plug dynamics that detects.

The utility model provides a flexible test head, is including unsteady direction part, base member part, test head stiff end, the flexible end of test head, flexonics line, pressure sensor and elastic medium, pressure sensor set up at elastic medium with between the base member part, the test head stiff end with the test head flexible end passes through flexonics line electric connection, the test head flexible end, base member part all can dismantle with unsteady direction part and be connected, and unsteady direction part sets up between test head flexible end and the base member part, unsteady direction part includes guide block, unsteady locating piece one end is connected with the test head flexible end, the locating piece other end that floats passes through elastic medium with the base member part is connected, the guide block with set up guide structure between the unsteady locating piece, this guide structure makes the central line of test head flexible end is located all the time under free state among the guide block On the centerline.

The utility model discloses a set up the precision that the direction part that floats increased the test head and peg graft, can better protect the product, reduce the spoilage, through the guide block location, the guide structure through the direction part that floats makes the test head flexible end of connection in the locating piece one end that floats dock more accurately with test equipment.

Further, for the cooperation test head flexible end and the being connected of test head stiff end to do not influence the test, still include the flexonics line, be provided with the passageway on the base member part, test head stiff end, test head flexible end are all installed in this passageway, and pass through flexonics line electric connection, the flexonics line is the flexible conducting material of arbitrary or its combination in soft FPC winding displacement, soft various winding displacement, the soft silica gel wire.

Furthermore, in order to improve the guiding capability and the guiding precision, a guiding structure is arranged on the guiding block or the floating positioning block, and a limiting structure matched with the guiding structure is arranged on the floating positioning block or the guiding block.

Furthermore, the shape of the guide structure is a cylinder or an annular or tangent plane arranged along the surface, the section of the annular is semicircular, conical or trapezoidal, the shape of the limit structure is a circular hole or an annular groove or tangent plane arranged along the surface, the section of the annular groove is semicircular, conical or trapezoidal, and the tangent plane is a plane or an arc-shaped surface.

Furthermore, the contact surfaces of the guide block and the floating positioning block are tightly attached through the force provided by the elastic medium, and the central line of the flexible end of the test head is always positioned on the central line of the guide block.

Furthermore, the flexible end of the test head and the fixed end of the test head both comprise a joint and a shell, and the joint is arranged at the upper end of the shell or integrally molded with the shell into a whole.

Furthermore, the flexible end of test head pass through elastic medium with base member part floats and connects, the test head stiff end pass through the screw with base member part connects.

Further, the connector comprises any one or combination of a USB plug, an HDMI plug, a type-C, DC power plug, an audio plug, an RJ45 plug, a DB plug and an aviation plug.

Furthermore, in order to facilitate the automation equipment to detect the plugging force, the pressure sensor is used for acquiring the floating elastic force when the flexible test head works, and the pressure sensor adopts the prior art.

Furthermore, the elastic medium is made of any one or a combination of a spring, elastic silica gel and a metal elastic sheet.

The beneficial effects of the utility model are embodied in:

1. the product has multiple protection: the testing head at the plugging end of the product has flexible performance, and can solve the problems of inaccurate alignment and damage of hard plugging to the product due to the difference of product consistency. The elastic medium of the test head enables the test head to have constant force, ensures stable plugging force and does not damage products. Be provided with pressure sensor between base member part and the unsteady locating piece and pull out the power of inserting and detect, if take place to pull out unusually to insert the power when bigger than normal/on the small side, the module has signal feedback to automation equipment detects to pull out and inserts the power and handles unusually, better protection product.

2. The alignment precision is high, and the accurate and smooth plugging is ensured; long service life, efficiency of software testing is high: the problem of when the data line (adapter) of using in the trade is done free floating and is pulled out and insert, data line stress, gravity influence float and direction precision is improved. The flexible testing head is kept to be always positioned on the central line of the assembly in a free state by adopting an elastic structure and a guide structure, and when the flexible testing head is inserted and pulled out to have deviation during testing, the corresponding position can be automatically calibrated, so that the flexible testing head and the IO port of a product can be freely aligned, and the accurate and smooth insertion and pulling can be ensured; so that the service life and the test efficiency are greatly improved compared with the prior manual structure

3. The test is stable, and the automation is easy to realize: the pull-plug test in the industry is more convenient, and the transmission signal is more stable and accurate. Automatic plugging and unplugging and automatic testing are easy to realize. The product consistency is good, and the cost is lower: the method is suitable for batch production, and has the advantages of low cost, short production period and good product consistency.

5. The subassembly is standardized, saves design labor for the enterprise: the module is standardized, supporting design is simple, and automation equipment designer can direct lectotype, overall arrangement, with the supporting mechanism of test head only need keep corresponding mounted position can to reduce designer's work load, improve work efficiency.

6. Convenient maintenance and replacement and good universality: the module is standardized, and different signal contacts use corresponding test head can, and appearance size mounting means/position is unchangeable, can realize quick replacement, solves quick replacement production model and the problem of quick maintenance in the production process.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view and a sectional view of an embodiment of the floating guide component of the present invention;

fig. 4 is a schematic structural view and a sectional view of another embodiment of the floating guide part of the present invention.

In the attached drawing, 1-a guide block, 11-a groove, 2-a floating positioning block, 21-a bulge, 3-a base part, 31-a pressure sensor, 4-a fixed end of a test head, 5-a flexible end of the test head and 6-an elastic medium.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

Example 1

As shown in fig. 1 and 2, a flexible test head comprises a floating guide part, a base part 3, a test head fixing end 4, a test head flexible end 5 and an elastic medium 6, the test head fixed end 4 is electrically connected with the test head flexible end 5, the test head flexible end 5 and the base body part 3 are detachably connected with the floating guide part, and the floating guide part is arranged between the flexible end 5 of the test head and the base part 3, the floating guide part comprises a guide block 1 and a floating positioning block 2, one end of the floating positioning block 2 is connected with a flexible end 5 of the test head, the other end of the floating positioning block 2 is connected with the base body part 3 through the elastic medium 6, a guide structure is arranged between the guide block 1 and the floating positioning block 2, the guide structure enables the central line of the flexible end 5 of the test head to be always positioned on the central line of the guide block 1 in a free state.

The utility model discloses a set up the precision that the direction part that floats increased the test head and peg graft, can better protect the product, reduce the spoilage, fix a position through guide block 1, make the connection make the test head flexible end 5 of 2 one ends of locating piece that float dock more accurate and test equipment dock through the guide structure of the direction part that floats. A guide structure is arranged between the floating positioning block and the guide block, and the flexible end of the testing head is installed on the floating positioning block, so that the flexible testing head is ensured to be positioned on the central line of the assembly in a free state. When the flexible testing head works, the flexible testing head is inserted into a product interface and instantly receives resistance, the flexible testing head conducts the resistance on the floating positioning block, the floating positioning block begins to compress an elastic medium to shrink backwards when receiving the resistance, the guiding structure between the floating positioning block and the guiding block is separated, the flexible testing head and the floating positioning block can freely swing for a certain amount at the moment, when deviation occurs in plugging, the corresponding position can be automatically calibrated, free alignment of the flexible testing head and the product IO port is realized, accurate and smooth plugging is ensured, and therefore free alignment plugging of the flexible testing head is realized.

In the embodiment, the component is used for connecting the product and the test system together on the automation equipment to realize the automated test: the assembly comprises a base body part 3, floating guide parts (a guide block 1 and a floating positioning block 2), two testing heads, a flexible connecting line, an elastic medium 6 and a pressure sensor. All the parts are finally mounted on the base part to form the flexible test head assembly. One ends of two testing heads of the assembly are designed to be flexible, can deflect from top to bottom and from left to right and float from front to back, the other ends of the testing heads are set to be fixed and fixed with the base part, and the two testing heads are conducted through a flexible connecting wire. The flexible end of the component test head is connected with a product IO port in the using process (the product IO port can comprise any one of USB, HDMI, type-C, DC power plug, audio plug, RJ45, DB type plug, aviation plug and the like), and the fixed end of the component test head is connected with the IO port of the test system (the product IO port can comprise any one of USB, HDMI, type-C, DC power plug, audio plug, RJ45, DB type plug, aviation plug and the like). The subassembly installation is on automation equipment (test board), and the subassembly test head stiff end passes through the data line and is connected with the test system IO end of automation equipment (test board), is controlled the subassembly by automation equipment (test board) motion, makes the flexible end of test head of subassembly insert the electronic product IO end of being surveyed to realize electronic product and test system's signal transmission, test. The assembly is convenient to use, strong in universality, convenient to design by designers, low in workload, convenient to maintain and easy to realize automatic testing. The adaptable test of flexible test head includes the test procedure that any one of the electronic product such as cell-phone, router, STB, computer, panel, intelligent wrist-watch, navigator, intelligent stereo set, vehicle automatic navigator, the treasured that charges, instrument and meter need to pull out the plug. The test head of the assembly can be any one of USB, HDMI, type-C, DC power plug, audio plug, RJ45, DB type plug, aviation plug and the like, and the flexible end and the fixed end of the test head can be the same type of connector or any combination of different types of connectors listed above.

In order to cooperate the connection of test head flexible end 5 and test head stiff end 4 to do not influence the test, still include the flexonics line, be provided with the passageway on the base member part 3, test head stiff end 4, test head flexible end 5 are all installed in this passageway, and pass through flexonics line electric connection, the flexonics line switches on the wire rod for the flexibility. The flexible connecting wire can be any flexible conducting wire such as a flexible FPC (flexible printed circuit) flat cable, a flexible color flat cable, a flexible silica gel wire and the like. The flexible connecting line is mainly connected with the flexible end/fixed end test head in a conduction mode, so that stable signal transmission is guaranteed, and floating deflection of the flexible end test head is not affected by the fixed end. The fixed end is fixed with the base part, so that the stress of the data line connected with the fixed end can act on the base, and the floating of the flexible end is not influenced.

To facilitate the mating of different test connectors, the test head flexible end 5 includes a connector and a housing, the connector being mounted on the upper end of the housing. The joint and the shell of the test head can be an integral body formed by injection molding of equipment, and can also be an assembly combination of the joint and the shell, the shell can be an injection molding part or a machining part, and the shell can be formed by one or more parts.

In order to facilitate the detection of the plugging force by the automation device, a pressure sensor 31 is arranged between the elastic medium 6 and the base part 3, and the pressure sensor 31 adopts the prior art. The deflection floating of the flexible end is realized by an elastic medium, a floating positioning block and a guide block, the elastic medium can be any one of elastic media such as a spring, elastic silica gel, a metal elastic sheet and the like, and the elastic medium is uniformly arranged between the base body part and the floating positioning block part, so that the elastic medium provides tension to push and press the floating positioning block. The pressure sensor who sets up between base member part and the locating piece that floats pulls out the power of inserting and detects, if take place to pull out unusually to insert the power when bigger than normal/on the small side, pressure sensor has signal feedback to automated equipment detects to pull out and inserts the power unusual and handles, better protection product.

The base member part is standardized part, and all the other parts all assemble on the base member part, when producing different products or maintaining, can accomplish quick replacement.

Example 2

Based on the content of embodiment 1, as shown in fig. 3, a protrusion 21 is disposed on the guide block 1 or the floating positioning block 2, and a groove 11 matching the protrusion is disposed on the floating positioning block 2 or the guide block 1. The protrusion 21 is annular in shape and is disposed on the surface of the guide block 1 or the floating positioning block 2. In the present embodiment, the cross section of the protrusion 21 may be provided in any shape having a guiding function, such as a cone shape, an arc shape, and the like. The protrusion 21 can be used as a pin, and the groove 11 can be used as a pin hole to directly match and fix the guide direction.

Example 3

Based on the content of embodiment 1, as shown in fig. 4, the contact surfaces of the guide block 1 and the floating positioning block 2 are tightly attached. The contact surface of guide block 1 and floating locating piece 2 is the arc, adopts the arcwall face to counterpoint to lead the dynamics even, can play the effect of buffering, and is the same in embodiment 2.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. A flexible test head, comprising: including unsteady direction part, base member part (3), test head stiff end (4), test head flexible end (5), flexonics line, pressure sensor (31) and elastic medium (6), pressure sensor (31) set up in elastic medium (6) with between base member part (3), test head stiff end (4) with test head flexible end (5) are passed through flexonics line electric connection, test head flexible end (5), base member part (3) all can dismantle with unsteady direction part and be connected, and unsteady direction part setting is in between test head flexible end (5) and base member part (3), unsteady direction part includes guide block (1), unsteady locating piece (2) one end is connected with test head flexible end (5), unsteady locating piece (2) other end passes through elastic medium (6) with base member part (3) is connected, and a guide structure is arranged between the guide block (1) and the floating positioning block (2), and the center line of the flexible end (5) of the test head is always positioned on the center line of the guide block (1) in a free state by the guide structure.

2. A flexible test head according to claim 1, wherein: the flexible testing device is characterized in that a channel is arranged on the base part (3), the testing head fixed end (4) and the testing head flexible end (5) are installed in the channel and are electrically connected through the flexible connecting wire, and the flexible connecting wire is made of flexible conducting materials which are randomly or combined in a flexible FPC (flexible printed circuit) flat cable, a flexible color flat cable and a flexible silica gel wire.

3. A flexible test head according to claim 1, wherein: the guide block (1) or the floating positioning block (2) is provided with a guide structure, and the floating positioning block (2) or the guide block (1) is provided with a limit structure matched with the guide structure.

4. A flexible test head according to claim 3, wherein: the shape of guide structure is the cylinder or prolongs the annular or tangent plane that the surface set up, annular cross-section is semicircle or toper or trapezoidal, limit structure's shape is the circular hole or prolongs the annular recess or the tangent plane that the surface set up, the cross-section of annular recess is semicircle or toper or trapezoidal, the shape of tangent plane is plane or arcwall face.

5. A flexible test head according to claim 3, wherein: the contact surfaces of the guide block (1) and the floating positioning block (2) are tightly attached through the force provided by the elastic medium (6), and the central line of the flexible end (5) of the test head is always positioned on the central line of the guide block (1).

6. A flexible test head according to claim 1, wherein: the flexible end (5) of the test head and the fixed end (4) of the test head comprise a joint and a shell, wherein the joint is arranged at the upper end of the shell, or the joint and the shell are integrally molded into a whole.

7. A flexible test head according to claim 6, wherein: the flexible end of test head (5) pass through elastic medium (6) with base member part (3) float and are connected, test head stiff end (4) pass through the screw with base member part (3) are connected.

8. A flexible test head according to claim 6, wherein: the connector comprises any one or combination of a USB, an HDMI, a type-C, DC power plug, an audio plug, an RJ45 plug, a DB type plug and an aviation plug.

9. A flexible test head according to claim 1, wherein: the pressure sensor (31) is used for acquiring floating elastic force when the flexible testing head works.

10. A flexible test head according to claim 1, wherein: the elastic medium (6) is made of any one or a combination of a spring, elastic silica gel and a metal elastic sheet.