CN218003467U - Test fixture - Google Patents

Abstract

The utility model relates to a test fixture, including the tool base and set up SAR accredited testing organization, first positioning mechanism and second positioning mechanism on the tool base. Part of the first positioning mechanism and part of the second positioning mechanism can move towards the direction close to each other, and one of the part of the first positioning mechanism and the part of the second positioning mechanism can move towards the direction far away from the other, so that the element to be tested can be placed on any one of the first positioning mechanism and the second positioning mechanism, namely the element to be tested can stay on the positioning mechanism which is not moved for SAR test. That is to say, the element to be tested can stop on first positioning mechanism or second positioning mechanism for SAR test mechanism realizes the SAR test to the different positions of the element to be tested that stops on different positioning mechanism, both can save tool input and easy operation.

Description

Test fixture

Technical Field

The present disclosure relates to the field of test technologies, and in particular, to a test fixture.

Background

Electronic devices such as mobile phones generally need to perform SAR testing (Specific Absorption Rate) and the like.

Generally speaking, the mobile phone needs to separately perform the SAR test on different positions in two test jigs, that is, the mobile phone is placed on one test jig to perform the SAR test on the upper portion of the mobile phone, and is then taken out and placed on the other test jig to perform the SAR test on the lower portion of the mobile phone.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a test fixture.

The disclosure provides a test fixture, which comprises a fixture base, and an SAR test mechanism, a first positioning mechanism and a second positioning mechanism which are arranged on the fixture base;

part of the first positioning mechanism and part of the second positioning mechanism can move towards a direction close to each other to form a positioning groove for placing an element to be tested, and part of one of the first positioning mechanism and part of the second positioning mechanism can move towards a direction far away from the other one, so that the element to be tested can be placed on any one of the first positioning mechanism and the second positioning mechanism, and the SAR testing mechanism is positioned between the first positioning mechanism and the second positioning mechanism and used for carrying out SAR testing on the element to be tested.

According to an embodiment of the disclosure, the SAR testing mechanism comprises a first base, a first driving part and a metal plate located below the positioning groove; the first base is arranged on the jig base, and the first driving part is arranged on the first base, is in transmission connection with the metal plate and is used for driving the metal plate to move towards the direction close to the element to be tested so as to carry out SAR test on the element to be tested or move towards the direction far away from the element to be tested.

According to one embodiment of the present disclosure, the first positioning mechanism includes a first slide table, a first slide table driving part, and a first clamping jaw structure;

first slip table sets up on the tool base, first slip table drive division sets up on the first slip table and with first clamping jaw structural connection is used for the drive first clamping jaw structure for first slip table is along being close to along the orientation second positioning mechanism's direction removes or keeps away from towards second positioning mechanism's direction removes.

According to an embodiment of the present disclosure, the second positioning mechanism includes a second slide table, a second slide table driving portion, and a second clamping jaw structure;

the second slip table sets up on the tool base, second slip table drive division sets up on the second slip table and with second clamping jaw structural connection is used for the drive second clamping jaw structure for the second slip table is along being close to along the orientation first positioning mechanism's direction removes or keeps away from towards first positioning mechanism's direction removes.

According to an embodiment of the present disclosure, the positioning groove is formed by one side of the first clamping jaw structure departing from the jig base and one side of the second clamping jaw structure departing from the jig base.

According to one embodiment of the disclosure, the device further comprises a distance sensor testing mechanism, wherein the distance sensor testing mechanism is positioned on one side of the first positioning mechanism, which is far away from the second positioning mechanism;

the distance sensor testing mechanism is used for testing the distance sensor of the element to be tested when the element to be tested is positioned on the first positioning mechanism.

According to an embodiment of the present disclosure, the distance sensor testing mechanism includes a second base, a second driving portion and a dust card, the second base is disposed on the jig base, the second driving portion is disposed on the second base and connected to the dust card, and is configured to drive the dust card to move to a position above the to-be-tested element toward a direction close to the to-be-tested element so as to perform a distance sensor test on the to-be-tested element, or move toward a direction away from the to-be-tested element.

According to an embodiment of the present disclosure, the second driving portion includes a second cylinder and a second piston rod, the second cylinder is disposed on the second base, the second piston rod is movable relative to the second cylinder along a width direction of the jig base, and the ash card is disposed at an end of the second piston rod away from the second cylinder.

According to an embodiment of the present disclosure, the test fixture further includes a fixture control box disposed on the fixture base and electrically connected to the SAR testing mechanism, the first positioning mechanism, and the second positioning mechanism.

According to an embodiment of the present disclosure, the fixture further comprises a fixture protection cover, wherein the fixture protection cover is arranged on the fixture base, and a to-be-tested element taking and placing opening is arranged on a side wall of the fixture protection cover.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the utility model provides a test fixture, including the tool base and set up SAR accredited testing organization, first positioning mechanism and second positioning mechanism on the tool base. Part of the first positioning mechanism and part of the second positioning mechanism can move towards the direction close to each other to form a positioning groove for placing an element to be tested, one of the part of the first positioning mechanism and the part of the second positioning mechanism can move towards the direction far away from the other one, so that the element to be tested can be placed on any one of the first positioning mechanism and the second positioning mechanism, and the SAR testing mechanism is located between the first positioning mechanism and the second positioning mechanism and used for carrying out SAR testing on different positions of the element to be tested. That is to say, through setting up first positioning mechanism and second positioning mechanism, thereby can make first positioning mechanism and second positioning mechanism when the direction that the orientation is close to each other removes, form the constant head tank, can place the element that awaits measuring on this constant head tank this moment, then one orientation in first positioning mechanism and the second positioning mechanism removes the direction of keeping away from the other, thereby make the element that awaits measuring stop this moment and carry out SAR test on the not positioning mechanism that removes, the element that awaits measuring promptly can stop on first positioning mechanism or second positioning mechanism, make SAR test mechanism realize SAR test to the different positions of the element that awaits measuring that stops on different positioning mechanism, both can save tool input and easy operation.

Drawings

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

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is an assembly diagram of a test fixture according to an embodiment of the disclosure;

fig. 2 is a schematic structural diagram of a first positioning mechanism, an SAR testing mechanism, and a second positioning mechanism of the testing fixture according to the embodiment of the present disclosure;

fig. 3 is a schematic structural view illustrating a positioning groove formed between a first positioning mechanism and a second positioning mechanism of the test fixture according to the embodiment of the disclosure;

fig. 4 is a schematic structural view illustrating a to-be-tested element of the test fixture of the embodiment of the disclosure being placed in a positioning slot;

fig. 5 is a schematic structural view illustrating a to-be-tested element of the test fixture staying on the first positioning mechanism according to the embodiment of the disclosure;

fig. 6 is a schematic structural view illustrating a to-be-tested element of the test fixture staying on the second positioning mechanism according to the embodiment of the disclosure;

fig. 7 is a schematic structural diagram of a distance sensor testing mechanism of the testing fixture according to the embodiment of the disclosure;

fig. 8 is a schematic structural diagram of a position where the distance sensor testing mechanism of the testing fixture tests the distance sensor of the element to be tested according to the embodiment of the disclosure.

Wherein, 1, a jig base; 2. an SAR testing mechanism; 21. a first base; 22. a first driving section; 221. a first cylinder; 222. a first piston rod; 23. a metal plate; 3. a first positioning mechanism; 31. a first sliding table; 32. a first slide table driving section; 33. a first jaw structure; 4. a second positioning mechanism; 41. a second sliding table; 42. a second slide table driving section; 43. a second jaw structure; 5. a component to be tested; 6. positioning a groove; 61. a baffle plate; 7. a distance sensor testing mechanism; 71. a second base; 72. a second driving section; 721. a second cylinder; 722. a second piston rod; 73. ash card; 8. a jig control box; 9. a jig protection cover; 91. a component to be tested taking and placing port.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

SAR (Specific Absorption Rate), an electromagnetic wave Absorption ratio or Specific Absorption Rate, is an electromagnetic wave energy Absorption ratio of a mobile phone or a wireless product, and is defined as: under the action of the external electromagnetic field, an induced electromagnetic field is generated in the human body. Since various organs of the human body are lossy media, the electromagnetic field in the body will generate electric currents, resulting in absorption and dissipation of electromagnetic energy. SAR is commonly used in biological dosimetry to characterize this physical process. SAR means the electromagnetic power absorbed or consumed by a unit mass of human tissue, in W/kg.

Referring to fig. 1 to 8, the present embodiment provides a test fixture, which includes a fixture base 1, and an SAR testing mechanism 2, a first positioning mechanism 3, and a second positioning mechanism 4 disposed on the fixture base 1.

Wherein part of the first positioning means 3 and part of the second positioning means 4 are movable towards each other to form a positioning slot 6 for placing the component 5 to be tested.

That is, referring to fig. 2, in the initial state, the first positioning mechanism 3 and the second positioning mechanism 4 are far away from each other, so that the to-be-tested element 5 (such as a mobile phone) cannot be placed between the first positioning mechanism 3 and the second positioning mechanism 4, and the distance between the first positioning mechanism 3 and the second positioning mechanism 4 is larger than the size of the to-be-tested element 5 due to the far distance; and when needing to test element 5 and carrying out SAR test, some first positioning mechanism 3 and some second positioning mechanism 4 can move towards the direction that is close to each other this moment, and as shown in fig. 3 and fig. 4, the distance between first positioning mechanism 3 and the second positioning mechanism 4 is nearer this moment, and the element 5 that awaits measuring just can be placed in the constant head tank 6 that first positioning mechanism 3 and second positioning mechanism 4 formed and can not take place to drop this moment.

Specifically, the position of the first positioning mechanism 3 where the positioning groove 6 is formed can be provided with a baffle 61 extending in the vertical direction, and similarly, the position of the second positioning mechanism 4 where the positioning groove 6 is formed can also be provided with a baffle 61 extending in the vertical direction, so that the element 5 to be tested can be placed in the positioning groove 6 under the limiting effect of the baffle 61 after being placed in the positioning groove 6 and cannot easily slide out of the positioning groove 6.

Wherein, one of part first positioning mechanism 3 and part second positioning mechanism 4 can move towards the direction of keeping away from the other to make the element 5 that awaits measuring can place on any one in first positioning mechanism 3 and second positioning mechanism 4, SAR accredited testing organization 2 is located between first positioning mechanism 3 and second positioning mechanism 4, is used for awaiting measuring the element 5 and carry out SAR to awaiting measuring.

Specifically, as shown in fig. 4, the first positioning mechanism 3 is located on the left side of the second positioning mechanism 4, that is, the left positioning mechanism is the first positioning mechanism 3, and the right positioning mechanism is the second positioning mechanism 4.

As shown in fig. 4, after the element 5 to be tested is placed in the positioning groove 6 formed by the first positioning mechanism 3 and the second positioning mechanism 4 together, fig. 5 can be referred to at this time, for example, the second positioning mechanism 4 can move towards the direction away from the first positioning mechanism 3, that is, the second positioning mechanism 4 can move towards the right, so that the element 5 to be tested is separated from the second positioning mechanism 4, the first positioning mechanism 3 is stationary, the element 5 to be tested is only placed on the first positioning mechanism 3 at this time, and the SAR testing mechanism 2 can perform SAR testing on the right half part of the element 5 to be tested at this time. Or, referring to fig. 6, the first positioning mechanism 3 may also move to the left, so that the element 5 to be tested is separated from the first positioning mechanism 3, the second positioning mechanism 4 is not moved, the element 5 to be tested is only placed on the second positioning mechanism 4, and the SAR testing mechanism 2 may perform SAR testing on the left half portion of the element 5 to be tested.

To sum up, the test fixture of this embodiment is through setting up first positioning mechanism 3 and second positioning mechanism 4, thereby can be so that first positioning mechanism 3 and second positioning mechanism 4 when the direction that is close to each other removes, form constant head tank 6, can place the element 5 that awaits measuring on this constant head tank 6 this moment, then one in first positioning mechanism 3 and the second positioning mechanism 4 can move towards the direction of keeping away from another person, thereby make the element 5 that awaits measuring stop this moment and carry out the SAR test on the not positioning mechanism that removes, the element 5 that awaits measuring can stop on first positioning mechanism 3 or second positioning mechanism 4 promptly, make SAR accredited testing organization 2 realize the SAR test to the different positions of the element 5 that awaits measuring that stops on the different positioning mechanisms, both can save tool cost and drop into and easy operation.

In addition, it should be noted that, the specific principle and method of the specific SAR testing mechanism 2 for performing the SAR test on the element under test 5 may refer to the description in the related art, and this embodiment will not be described too much.

Referring to fig. 2, in some embodiments, the SAR testing mechanism 2 comprises a first base 21, a first driving part 22, and a metal plate 23 located below the positioning groove 6.

The first base 21 is disposed on the fixture base 1, and the first driving portion 22 is disposed on the first base 21 and is in transmission connection with the metal plate 23, so as to drive the metal plate 23 to move toward a direction close to the element 5 to be tested, so as to perform an SAR test on the element 5 to be tested, or move toward a direction away from the element 5 to be tested.

In a specific implementation, in an initial position, as shown in fig. 4, that is, when the SAR test is not performed on the element to be tested 5, the metal plate 23 is located below the positioning groove 6, that is, has a certain distance to the element to be tested 5 placed in the positioning groove 6 in the height direction; referring to fig. 5, when the SAR test is required to be performed on the element to be tested 5, the first driving part 22 drives the metal plate 23 to move upward and to be located at the bottom of the element to be tested 5, so as to perform the SAR test on the element to be tested 5; after the test is completed, the first driving part 22 drives the metal plate 23 to move downward again so as to be reset to the initial position for the next test.

Specifically, the first driving portion 22 may be specifically a driving cylinder. That is, the first driving portion 22 may include a first cylinder 221 and a first piston rod 222, the first cylinder 221 is disposed on the first base 21, and the first piston rod 222 may move in a vertical direction relative to the first cylinder 221, so as to move in a direction toward the element to be tested 5 to drive the metal plate 23 located at one end of the first piston rod 222 far from the first cylinder 221 to move upward, so as to perform an SAR test on the element to be tested 5; or after the test is completed, the metal plate 23 can be moved away from the element to be tested 5 relative to the first cylinder 221 by the first piston rod 222 and reset to the initial position.

In other embodiments, the first driving portion 22 may also be a transmission structure such as a screw module or a pulley module.

Referring to fig. 2, in some embodiments, the first positioning mechanism 3 includes a first slide table 31, a first slide table driving portion 32, and a first jaw structure 33.

The first sliding table 31 is disposed on the jig base 1, and the first sliding table driving portion 32 is disposed on the first sliding table 31 and connected to the first clamping jaw structure 33, and is configured to drive the first clamping jaw structure 33 to move in a direction toward the second positioning mechanism 4 or move in a direction away from the second positioning mechanism 4 relative to the first sliding table 31.

For example, when the element 5 to be tested needs to be subjected to the SAR test, at this time, the first sliding table driving part 32 drives the first clamping jaw structure 33 to move towards the direction close to the second positioning mechanism 4, so that the positioning groove 6 capable of accommodating the element 5 to be tested is formed between the first positioning mechanism 3 and the second positioning mechanism 4; then, if the left half of the element 5 to be tested is to be subjected to the SAR test, at this time, the first sliding table driving part 32 drives the first clamping jaw structure 33 to move towards the direction away from the second positioning mechanism 4, so that the element 5 to be tested stays on the second positioning mechanism 4 to perform the subsequent SAR test. Or, if the right half of the element 5 to be tested is to be subjected to the SAR test, at this time, the first sliding table driving portion 32 is in a stop state, the second positioning mechanism 4 moves towards the direction away from the first clamping jaw structure 33, and at this time, the element 5 to be tested is clamped in the first clamping jaw structure 33 to perform the subsequent SAR test.

The first slide table driving unit 32 may be of a cylinder driving type, a screw driving type, or a pulley driving type.

Referring to fig. 2, in some embodiments, the second positioning mechanism 4 includes a second slide table 41, a second slide table driving portion 42, and a second jaw structure 43.

Wherein, the second slip table 41 is arranged on the jig base 1, and the second slip table driving part 42 is arranged on the second slip table 41 and connected with the second clamping jaw structure 43, and is used for driving the second clamping jaw structure 43 to move relative to the second slip table 41 along the direction of approaching the first positioning mechanism 3 or move along the direction of keeping away from the first positioning mechanism 3.

For example, when the SAR test needs to be performed on the element 5 to be tested, at this time, the first sliding table driving part 32 drives the first clamping jaw structure 33 to move towards the direction close to the second positioning mechanism 4, and the second sliding table driving part 42 drives the second clamping jaw structure 43 to move towards the direction close to the first positioning mechanism 3, so that the positioning groove 6 capable of accommodating the element 5 to be tested is formed between the first positioning mechanism 3 and the second positioning mechanism 4; then, if the left half of the element 5 to be tested is to be subjected to the SAR test, at this time, the first sliding table driving part 32 drives the first clamping jaw structure 33 to move towards the direction away from the second positioning mechanism 4, and the second sliding table driving part 42 is in the stop state, so that the element 5 to be tested stays on the second clamping jaw structure 43 to perform the subsequent SAR test. Or, if the right half of the element 5 to be tested is to be subjected to the SAR test, at this time, the first sliding table driving part 32 is in a stop state, the second sliding table driving part 42 drives the second clamping jaw structure 43 to move towards the direction away from the first clamping jaw structure 33, and at this time, the element 5 to be tested is clamped in the first clamping jaw structure 33 to perform the subsequent SAR test.

The second slide table driving unit 42 may be a cylinder driving type, a screw driving type, or a pulley driving type.

Referring to fig. 4, in a specific implementation, one side of the first clamping jaw structure 33 departing from the jig base 1 and one side of the second clamping jaw structure 43 departing from the jig base 1 are used for forming the positioning groove 6. That is, the upper surface of the first jaw structure 33 and the upper surface of the second jaw structure 43 together form the positioning slot 6.

In particular, the shape of the positioning slot 6 may conform to the shape of the element 5 to be tested, so that the element 5 to be tested may be stably received in the positioning slot 6. In addition, the depth of the positioning slot 6 may be the same as the thickness of the element to be tested 5, or the depth of the positioning slot 6 may also be greater than the thickness of the element to be tested 5 or less than the thickness of the element to be tested 5.

Referring to fig. 1, 7 and 8, in some embodiments, the test fixture of this embodiment further includes a distance sensor testing mechanism 7, where the distance sensor testing mechanism 7 is located on one side of the first positioning mechanism 3 away from the second positioning mechanism 4, that is, the distance sensor testing mechanism 7 may be located on the left side of the first positioning mechanism 3, and along the width direction of the fixture base 1, the distance sensor testing mechanism 7 and the first positioning mechanism 3 may be sequentially arranged at intervals along the width direction of the fixture base 1.

The distance sensor testing mechanism 7 is used for testing the distance sensor of the element to be tested 5 when the element to be tested 5 is positioned on the first positioning mechanism 3.

That is to say, as shown in fig. 5 and 8, when the second positioning mechanism 4 moves towards the direction away from the first positioning mechanism 3, and the first positioning mechanism 3 is stationary, when the element 5 to be tested is clamped in the first clamping jaw structure 33, the distance sensor testing mechanism 7 can perform the distance sensor test on the element 5 to be tested, so that the distance sensor test and the SAR test at different positions can be completed by one testing jig, and the problems of high jig input cost and complicated test caused by the need of three testing jigs to complete the above tests are avoided. The principle and method of the distance sensor testing mechanism 7 for testing the distance sensor of the device under test 5 can refer to the description in the related art, which is not described in detail in this embodiment.

It should be noted that the distance sensing sensor test refers to: when an object approaches the sensor, the object enters the infrared emission area, and some infrared rays are reflected to the sensor. The photodiode in the proximity sensor receives the reflected light. The system can react to approaching people or objects, and the system is typically applied to the process of making a call by a mobile phone, when a face approaches a screen, the screen is automatically turned off, and when the face leaves, the face is automatically turned on, so that electricity can be saved, and misoperation caused by face touch can be prevented.

Referring to fig. 7 and 8, in some embodiments, the distance sensor testing mechanism 7 includes a second base 71, a second driving part 72, and a gray card 73, and the gray card 73 may be an 18 ° gray card. The second base 71 is disposed on the fixture base 1, and the second driving portion 72 is disposed on the second base 71 and connected to the ash card 73, and is configured to drive the ash card 73 to move to a direction close to the to-be-tested element 5 to a position above the to-be-tested element 5 to perform a distance sensor test on the to-be-tested element 5, or move to a direction away from the to-be-tested element 5.

In a specific implementation, when the test fixture is at the initial position, that is, when the distance sensor test is not performed, the ash card 73 is located at the rear side of the to-be-tested element 5 (where the rear side is opposite to the front side, and the front side and the rear side are opposite sides defined along the width direction of the fixture base 1), that is, when the ash card 73 is at the initial position, the ash card 73 and the to-be-tested element 5 are spaced along the front side and the rear side of the fixture base 1; when the distance sensor test needs to be performed on the element to be tested 5, the second driving portion 72 drives the ash card 73 to move towards the front side of the jig base 1, that is, towards the element to be tested 5 and can move right above the element to be tested 5, so as to perform the distance sensor test on the element to be tested 5; when the test is completed, the second driving part 72 drives the ash card 73 to move toward the rear side of the jig base 1 and then reset to the initial position.

In a specific implementation, the second driving portion 72 includes a second cylinder 721 and a second piston rod 722, the second cylinder 721 is disposed on the second base 71, the second piston rod 722 is movable along the width direction of the jig base 1 relative to the second cylinder 721, and the ash card 73 is disposed at one end of the second piston rod 722 far from the second cylinder 721.

Specifically, when the distance sensor test needs to be performed on the element to be tested 5, at this time, the second piston rod 722 drives the ash card 73 to move towards the front side of the jig base 1, that is, towards the element to be tested 5 and can move right above the element to be tested 5, so as to perform the distance sensor test on the element to be tested 5; when the test is completed, the second piston rod 722 drives the ash card 73 to move towards the rear side of the jig base 1 and then reset to the initial position.

Referring to fig. 1, the test fixture further includes a fixture control box 8, the fixture control box 8 is disposed on the fixture base 1, and is electrically connected to the SAR testing mechanism 2, the first positioning mechanism 3 and the second positioning mechanism 4, and is used for controlling movement, reset and the like of the SAR testing mechanism 2, the first positioning mechanism 3 and the second positioning mechanism 4 respectively. Further, the jig control box 8 may be electrically connected to the distance sensor testing mechanism 7, and may control movement, reset, and the like of the distance sensor testing mechanism 7.

Referring to fig. 1, in some embodiments, the test fixture further includes a fixture protection cover 9, the fixture protection cover 9 is covered on the fixture base 1, and a to-be-tested element access opening 91 is formed in a side wall of the fixture protection cover 9, so that the to-be-tested element 5 can be accessed through the to-be-tested element access opening 91.

It should be noted that, the test fixture of the embodiment may further include a manipulator, so that the manipulator captures the to-be-tested element 5 to the positioning slot 6; or a belt conveying mechanism can be arranged to realize the feeding or discharging of the element to be tested 5 on the test fixture, so that the automatic test operation is realized.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A test fixture is characterized by comprising a fixture base (1), and an SAR test mechanism (2), a first positioning mechanism (3) and a second positioning mechanism (4) which are arranged on the fixture base (1);

part the first positioning mechanism (3) and part the second positioning mechanism (4) can move towards the direction that is close to each other to form a positioning groove (6) that is used for placing an element (5) to be tested, and part one of the first positioning mechanism (3) and part the second positioning mechanism (4) can move towards the direction that is far away from the other one, so that the element (5) to be tested can be placed on any one of the first positioning mechanism (3) and the second positioning mechanism (4), SAR test mechanism (2) is located between the first positioning mechanism (3) and the second positioning mechanism (4), is used for carrying out SAR test to different positions of the element (5) to be tested.

2. Test fixture according to claim 1, characterized in that the SAR testing mechanism (2) comprises a first base (21), a first driving part (22) and a metal plate (23) located below the positioning slot (6); the first base (21) is arranged on the jig base (1), and the first driving part (22) is arranged on the first base (21) and is in transmission connection with the metal plate (23) and used for driving the metal plate (23) to move towards the direction close to the element to be tested (5) so as to carry out SAR test on the element to be tested (5) or move towards the direction far away from the element to be tested (5).

3. The test fixture according to claim 1, wherein the first positioning mechanism (3) comprises a first slide table (31), a first slide table driving portion (32) and a first clamping jaw structure (33);

first slip table (31) sets up on tool base (1), first slip table drive division (32) set up on first slip table (31) and with first clamping jaw structure (33) are connected, are used for the drive first clamping jaw structure (33) for first slip table (31) are along being close to the orientation the direction of second positioning mechanism (4) is removed or is kept away from towards the direction of second positioning mechanism (4) is removed.

4. The test fixture according to claim 3, wherein the second positioning mechanism (4) comprises a second slide table (41), a second slide table driving portion (42), and a second jaw structure (43);

second slip table (41) sets up on tool base (1), second slip table drive division (42) set up on second slip table (41) and with second clamping jaw structure (43) are connected, are used for the drive second clamping jaw structure (43) for second slip table (41) are along being close to along the orientation the direction of first positioning mechanism (3) is removed or is kept away from towards the direction of first positioning mechanism (3) is removed.

5. A test fixture according to claim 4, characterised in that the side of the first jaw structure (33) facing away from the fixture base (1) and the side of the second jaw structure (43) facing away from the fixture base (1) together form the positioning slot (6).

6. A test fixture according to any one of claims 1 to 5, further comprising a distance sensor testing mechanism (7), wherein the distance sensor testing mechanism (7) is located on a side of the first positioning mechanism (3) away from the second positioning mechanism (4);

the distance sensor testing mechanism (7) is used for testing the distance sensor of the element to be tested (5) when the element to be tested (5) is positioned on the first positioning mechanism (3).

7. The test fixture according to claim 6, wherein the distance sensor testing mechanism (7) comprises a second base (71), a second driving portion (72) and a dust card (73), the second base (71) is disposed on the fixture base (1), the second driving portion (72) is disposed on the second base (71) and connected with the dust card (73) for driving the dust card (73) to move to a direction close to the element to be tested (5) to a direction above the element to be tested (5) for performing the distance sensor test on the element to be tested (5) or to move to a direction away from the element to be tested (5).

8. The test fixture according to claim 7, wherein the second driving portion (72) comprises a second cylinder (721) and a second piston rod (722), the second cylinder (721) is disposed on the second base (71), the second piston rod (722) is movable in a width direction of the fixture base (1) relative to the second cylinder (721), and the ash card (73) is disposed at an end of the second piston rod (722) away from the second cylinder (721).

9. A test fixture as claimed in any one of claims 1 to 5, characterised in that the test fixture further comprises a fixture control box (8), the fixture control box (8) being provided on the fixture base (1) and being electrically connected with the SAR testing mechanism (2), the first positioning mechanism (3) and the second positioning mechanism (4).

10. The test fixture according to any one of claims 1 to 5, further comprising a fixture protection cover (9), wherein the fixture protection cover (9) is covered on the fixture base (1), and a component to be tested access opening (91) is arranged on a side wall of the fixture protection cover (9).

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