CN215641678U - Test fixture - Google Patents

Abstract

The embodiment of the utility model relates to the technical field of test equipment, in particular to a test fixture. The embodiment of the utility model aims to solve the technical problem that a card is easy to fall off when the card is plugged in and pulled out in a test stage. According to the test fixture provided by the embodiment of the utility model, the mounting side of the clamping plate is provided with the clamping groove, the test card is arranged in the clamping groove, the covering piece covers the mounting side and is connected with the clamping plate in an openable manner, and the covering piece is arranged right opposite to the clamping groove; at the in-process of carrying out the test, the cover piece is in and covers on the cardboard to seal the closed condition of draw-in groove, and then avoid inserting, pull out the in-process test card of cardboard and drop by the draw-in groove, and then avoid test card and cardboard to break away from.

Description

Test fixture

Technical Field

The embodiment of the utility model relates to the technical field of test equipment, in particular to a test fixture.

Background

In the production process of electronic equipment such as mobile phones and tablet computers, multiple tests are generally required to ensure the product quality. For example: after the circuit board is manufactured, a Memory Card (SD) or a Subscriber Identity Module (SIM) needs to be inserted on the circuit board to test a structure of the circuit board for matching with the SD Card or the SIM Card.

In the related art, an SD card or an SIM card is often placed on a card holder to realize a test; specifically, the clamping support comprises a supporting plate, and a clamping groove is formed in the supporting plate; during testing, the SD card or the SIM card is placed in the card slot, a tester holds the card board by hand and inserts the card board into the card seat on the circuit board so as to test the circuit board.

However, after the test is completed, the card board needs to be pulled out of the card socket, and the SD card or the SIM card is easily separated from the card socket during the process, and then drops.

SUMMERY OF THE UTILITY MODEL

In view of this, an embodiment of the present invention provides a test fixture to solve the technical problem that a card easily falls off when a card holder is inserted and pulled out in a test stage.

The embodiment of the utility model provides a test fixture, which comprises: the test card comprises a clamping plate and a covering sheet, wherein a clamping groove used for containing a test card is formed in the installation side of the clamping plate, the covering sheet covers the installation side, the covering sheet is connected with the clamping plate in an openable mode, and the covering sheet is opposite to the clamping groove.

In some embodiments that may include the above-mentioned embodiment, the first end of the cover sheet is articulated with the cardboard, and the second end of the cover sheet is detachably connected with the cardboard.

In some embodiments, which may include the above embodiments, the second end of the cover sheet is in clamping connection with the clamping plate.

In some embodiments, which may include the above embodiments, the second end of the covering sheet is provided with a first clamping portion and a second clamping portion, and the first clamping portion and the second clamping portion are oppositely arranged; the cardboard has and is located first end with third end and fourth end between the second end, the third end is provided with third joint portion, the fourth end is provided with fourth joint portion, first joint portion with third joint portion joint, second joint portion with fourth joint portion joint.

In some embodiments, which may include the above embodiments, the first clamping portion includes a first clamping plate extending toward the clamping plate, and the first clamping plate is bent to form a first clamping groove; the second clamping portion comprises a second clamping plate extending towards the clamping plate, and the second clamping plate is bent to form a second clamping groove.

In some embodiments, which may include the above-mentioned embodiments, the third catching portion includes a first projection extending outward of the card board, and the fourth catching portion includes a second projection extending outward of the card board.

In some embodiments which may include the above embodiments, a top portion is disposed on a side of the covering sheet facing the clamping plate, and the top portion is used for abutting against the test card.

In some embodiments which may include the above embodiments, the test fixture further includes a pull handle, the clamping plate has an insertion end for being inserted into the clamping seat of the test circuit board, and an exposed end located outside the clamping seat, and the pull handle is connected with the exposed end.

In some embodiments, which may include the above embodiments, one end of the handle is provided with a joint portion, the joint portion is provided with a joint plate, the exposed end is provided with a connecting groove, the joint plate is attached to a groove bottom of the connecting groove, and the joint plate is riveted with the exposed end.

In some embodiments, which may include the above embodiments, the edge of the engagement portion is provided with a pinhole for passing a card needle.

According to the test fixture provided by the embodiment of the utility model, the mounting side of the clamping plate is provided with the clamping groove, the test card is arranged in the clamping groove, the covering piece covers the mounting side and is connected with the clamping plate in an openable manner, and the covering piece is arranged right opposite to the clamping groove; at the in-process of carrying out the test, the cover piece is in and covers on the cardboard to seal the closed condition of draw-in groove, and then avoid inserting, pull out the in-process test card of cardboard and drop by the draw-in groove, and then avoid test card and cardboard to break away from.

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 description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a test fixture according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a test fixture according to an embodiment of the present invention, in which a cover sheet is in an open state;

FIG. 3 is a schematic front view of a clamping plate of a test fixture according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a back structure of a card board in the test fixture according to an embodiment of the utility model;

fig. 5 is a schematic structural diagram of a cover sheet in the test fixture according to an embodiment of the utility model;

fig. 6 is a schematic structural diagram of a pull handle in a test fixture according to an embodiment of the utility model.

Description of reference numerals:

10. clamping a plate; 20. A cover sheet;

30. a handle; 40. An SD card;

50. a SIM card; 101. A third end;

102. a fourth end; 103. A third clamping connection part;

104. a fourth clamping part; 105. A card slot;

1051. a first card slot; 1052. A second card slot;

106. a connecting projection; 107. Connecting grooves;

108. hinging a shaft; 201. A first end;

202. a second end; 203. A first clamping part;

2031. a first clamping groove; 204. A second clamping part;

2041. a second clamping groove; 205. A butting part;

206. a hinge plate; 302. A joint portion;

303. a pin clamping hole; 304. A joint plate;

305. the holes are jointed.

Detailed Description

First, it should be understood by those skilled in the art that the present embodiment is only for explaining the technical principle of the present invention, and is not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

Next, it should be noted that in the description of the embodiments of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. Specific meanings of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The test fixture is a device commonly used in the technical field of test equipment, and in the production and manufacturing process of electronic equipment such as a flat panel or a mobile phone, for example, after a Surface Mounted Technology (SMT) stage and an assembly stage of a circuit board are completed, a plurality of functional tests need to be performed on a test card to ensure product quality. For example, after the circuit board is manufactured, the SD card or the SIM card needs to be inserted on the circuit board to test the structure of the circuit board for matching with the SD card or the SIM card.

In the related art, the SD card or the SIM card is often placed on the card holder to realize the test, specifically, the card holder includes a supporting plate, a clamping groove is provided on the supporting plate, during the test, the SD card or the SIM card is placed in the clamping groove, the tester holds the card board by hand, and the card board is inserted into the card holder on the circuit board through the pulling piece to realize the test of the circuit board. However, after the test is completed, the card board needs to be pulled out of the card socket, and the SD card or the SIM card is easily separated from the card socket in the process, and then drops off, thereby affecting the subsequent test.

The embodiment provides a test fixture, including cardboard and cover sheet, be equipped with the draw-in groove of holding test card on the cardboard, the setting that the cover sheet can be opened is on the cardboard to place the test card behind the draw-in groove, the cover sheet can prevent the test card to break away from by the draw-in groove in, and then avoids the test card to drop.

As shown in fig. 1 to 4, the present embodiment provides a testing fixture, including: cardboard 10 and cover sheet 20, the installation side of cardboard 10 is provided with the draw-in groove 105 that is used for the holding test card, and cover sheet 20 covers in the installation side, the connection that can open between cover sheet 20 and the cardboard 10, and cover sheet 20 just sets up draw-in groove 105.

The clamping plate 10 is plate-shaped, and the side face of the clamping plate 10 with the larger surface area is a mounting side; when testing, the card board 10 is inserted into a card seat on a circuit board to be tested to realize the test. Illustratively, the material of the card 10 may include plastic, rubber, and the like.

The number of the card slots 105 provided on the installation side may be one or more, and the present embodiment is described by taking the example in which two card slots 105 are provided on the installation side. The test card can be an SD card 40 or a SIM card 50, and in an implementation manner in which the mounting side is provided with two card slots 105, the SD card 40 is provided in one card slot 1051, and the SIM card 50 is provided in the other card slot 1052, so that the test fixture can be applied to different test cards. Of course, the test card in this embodiment may also be another card for being mounted on a circuit board, and this embodiment is not limited thereto.

With continued reference to fig. 2 and 4, the card slot 105 includes a first card slot 1051 and a second card slot 1052, the first card slot 1051 and the second card slot 1052 are both disposed on the mounting side, and the first card slot 1051 and the second card slot 1052 are independently disposed. An SD card 40 is disposed in a first card slot 1051 and a SIM card 50 is disposed in a second card slot 1052.

As shown in fig. 3 and 4, in order to facilitate the tester to quickly mount the SD card 40 and the SIM card 50 into the first card slot 1051 and the second card slot 1052, relevant characters such as "MICRO SD" and "NANO SIM" may be printed on the mounting side of the card 10, and the tester may quickly mount the SD card 40 or the SIM card 50 into the corresponding card slot 105 on the mounting side of the card 10 according to the SD or SIM characters.

The shape of the cover sheet 20 may be rectangular, square, etc., and the rectangular cover sheet 20 is described as an example in this embodiment.

The covering sheet 20 may be made of stainless steel or plastic, and the thickness is not too thick, so as to reduce the overall mass of the test fixture. Illustratively, the cover sheet may have a thickness of from 0.1mm to 0.5mm, such as: 0.1mm, 0.2mm, 0.5mm, etc.

In this embodiment, the covering sheet 20 is connected to the clamping plate 10 in an openable manner, and the covering sheet 20 is disposed over against the clamping groove 105; the openable connection between the cover sheet 20 and the clamping plate 10 is not limited in this embodiment, as long as it is ensured that in the opened state, the cover sheet 20 opens the clamping groove 105, so that the test card can be conveniently placed in the clamping groove 105, or the test card can be taken out from the clamping groove 105; in the closed state, the covering sheet 20 is disposed over against the card slot 105 to block the card slot 105, so as to prevent the test card in the card slot 105 from falling.

In some implementations, the cover sheet 20 has a first end 201 and a second end 202 disposed opposite to each other, the first end 201 is hinged to one end of the card 10, and the second end 202 is detachably connected to the card 10; so set up, after rotating the cover sheet 20 to make the cover sheet 20 cover on the card slot 105, and the second end 202 is used for the connection of the card board 10, make the cover sheet 20 prevent the test card from dropping; the second end 202 is separated from the clamping plate 10, and the covering sheet 20 is rotated to separate the covering sheet 20 from the clamping plate 10, namely, the covering sheet 20 is in an open state, so that the test card can be taken out or placed conveniently; simple structure and convenient operation.

Illustratively, the second end 202 may be connected to the card 10 by a bolt connection, a snap connection, or the like.

In other implementation manners, the covering sheet 20 covers the clamping plate 10, two ends of the covering sheet 20, which are perpendicular to the length direction of the clamping plate 10, are bent to form bending plates, and sliding rails are arranged on the inner sides of the bending plates; the two ends of the corresponding clamping plate 10, which are perpendicular to the length direction of the clamping plate, are provided with sliding grooves, the sliding grooves extend along the length direction of the clamping plate, the two bending plates respectively cover the two ends of the clamping plate 10, which are perpendicular to the length direction of the clamping plate, and the sliding rails are slidably arranged in the corresponding sliding grooves; so that the cover sheet 20 is slidably connected with the catch plate 10. When the test card is used, the cover sheet 20 slides relative to the card board 10, so that the card slot 105 is exposed, and the test card can be conveniently taken out or placed; during testing, the cover sheet 20 is slid so that the cover sheet 20 faces the card slot 105, thereby preventing the test card in the card slot 105 from falling off.

The use process of the test fixture provided by the embodiment is as follows: make second end 202 and cardboard 10 of cover sheet 20 break away from to the direction of keeping away from cardboard 10 twists back cover sheet 20, make cover sheet 20 and draw-in groove 105 separation; the tester can quickly find the positions of the SD card 40 or the SIM card 50 corresponding to the first card slot 1051 and the second card slot 1052 in the card board 10 based on the word "MICRO SD" or "NANO SIM" on the card board 10; after the tester installs the SD card 40 and the SIM card 50, the cover sheet 20 is twisted to the card board 10 to be attached to the card board 10, and then the second end 202 is connected to the card board 10; at this time, the cover sheet 20 can prevent the SD card 40 and the SIM card 50 from being separated from the card board 10; then, the tester holds the card board 10 by hand, and inserts the card board 10 into the card seat on the circuit board, thereby realizing the test of the circuit board.

According to the test fixture provided by the embodiment, the mounting side of the clamping plate 10 is provided with the clamping groove 105, the test card is arranged in the clamping groove 105, the covering piece 20 covers the mounting side, the covering piece 20 is connected with the clamping plate 10 in an openable mode, and the covering piece 20 is arranged right opposite to the clamping groove 105; in the process of testing, cover piece 20 is in and covers on cardboard 10 to seal the closed condition of draw-in groove 105, and then avoid inserting, pull out the in-process test card of cardboard 10 and drop by in the draw-in groove 105, and then avoid test card and cardboard 10 to break away from.

Referring to fig. 1 to 5, in an implementation manner that the first end 201 of the covering sheet 20 is hinged to the clamping plate 10, and the second end 202 of the covering sheet 20 is detachably connected to the clamping plate 10, the first end 201 of the covering sheet 20 is bent to form a hinge plate 206, and the hinge plate 206 is hinged to the clamping plate 10 through a hinge shaft 108.

Further, the second end 202 of the cover sheet 20 is provided with a first clamping portion 203 and a second clamping portion 204, and the first clamping portion 203 and the second clamping portion 204 are oppositely arranged; the clamping plate 10 is provided with a third end 101 and a fourth end 102 which are positioned between the first end 201 and the second end 202, the third end 101 is provided with a third clamping portion 103, the fourth end 102 is provided with a fourth clamping portion 104, the first clamping portion 203 is clamped with the third clamping portion 103, and the second clamping portion 204 is clamped with the fourth clamping portion 104. The clamping between the cover sheet 20 and the clamping plate 10 is realized through the clamping of the first clamping portion 203 and the third clamping portion 103, and the clamping of the second clamping portion 204 and the fourth clamping portion 104, so that the connection is firm and the structure is simple.

In some implementations, the first clamping portion 203 includes a first clamping plate extending toward the clamping plate 10, and the first clamping plate is bent to form a first clamping groove 2031; the second clamping portion 204 includes a second clamping plate extending toward the clamping plate 10, and the second clamping plate is bent to form a second clamping groove 2041.

Accordingly, the third catching portion 103 includes a first projection extending outward of the card 10, and the fourth catching portion 104 includes a second projection extending outward of the card 10. The first protruding portion is clamped in the first clamping groove 2031, and the second protruding portion is clamped in the second clamping groove 2041, so that the connection force between the covering sheet 20 and the clamping plate 10 is improved.

Of course, the first clamping groove 2031 and the second clamping groove 2041 can also be hooked on the edge of the clamping plate 10 to realize clamping, so as to simplify the structure of the clamping plate.

In other implementations, the third clamping portion 103 may be a first hook disposed at the edge of the mounting side, and the corresponding fourth clamping portion 104 is a second hook disposed at the edge of the mounting side, where the first hook and the second hook are disposed oppositely; rotating cover sheet 20 to make cover sheet 20 cover when the installation side, first coupler body and second coupler body hook are held at cover sheet 20's edge, also can realize the joint between cover sheet 20 and cardboard 10.

With reference to fig. 5, in the testing fixture provided in this embodiment, a top portion 205 is disposed on a side of the covering sheet 20 facing the card board 10, and the top portion 205 is used for supporting against the test card. So set up, can prevent that the test card from rocking in draw-in groove 105 to improve test effect.

For example, stamping may be performed on a side of the cover sheet 20 away from the clamping plate 10 to form the abutting portion 205, so as to simplify the manufacturing difficulty of the cover sheet 20; of course, the plate body may also be attached to a side of the covering sheet 20 facing the clamping board 10 to form the abutting portion 205, which is not limited in this embodiment.

The shape of the abutting portion 205 may be circular, rectangular, or other shapes, which is not limited by the embodiment.

The protruding height of the abutting portion 205 toward one side of the card board 10 is not limited, as long as the abutting portion 205 can abut against the test card, and further the test card is prevented from shaking in the card slot 105.

As shown in fig. 1, fig. 2 and fig. 6, the testing fixture provided in this embodiment further includes a handle 30, the clamping plate 10 has an inserting end for being inserted into the clamping seat of the testing circuit board and an exposed end located outside the clamping seat, and the handle 30 is connected to the exposed end. With the arrangement, a tester can realize the insertion or separation between the clamping plate 10 and the clamping seat by holding the handle 30, so that the operation of the tester is facilitated.

For example, the material of the handle 30 may include a stainless steel material, a polypropylene plastic material, or the like, which is not limited in this embodiment.

The handle 30 can be machined by a Computer Numerical Control (CNC) machine, and has a certain draft angle, so that the tester can insert and pull the handle conveniently, and the handle can be manufactured conveniently.

As shown in fig. 1 to 3 and 6, a joint portion 302 is disposed at one end of the handle 30 close to the card board 10, a joint plate 304 is disposed on the joint portion 302, a connecting groove 107 is disposed on the exposed end, the joint plate 304 is attached to the groove bottom of the connecting groove 107, and the joint plate 304 is riveted with the exposed end. The joint plate 304 is located in the connecting groove 107, and the joint plate 304 is riveted with the exposed end, so that the connecting strength between the handle 30 and the exposed end is ensured, meanwhile, the exposure of the connecting position can be avoided, and the structural compactness of the test fixture is improved.

Illustratively, the groove bottom of the connecting groove 107 is provided with a connecting protrusion 106, correspondingly, the joint plate 304 is provided with an engaging hole 305, and after the connecting protrusion 106 extends into the engaging hole 305, the connecting protrusion 106 is deformed, so that the connecting protrusion 106 is prevented from being separated from the joint plate 304, and riveting between the joint plate 304 and the exposed end is realized.

Further, the connecting protrusion 106 may be a plurality of connecting protrusions 106, the plurality of connecting protrusions 106 are arranged at intervals, a plurality of engaging plates 304 are arranged on the corresponding engaging portion 302, each engaging plate 304 is provided with an engaging hole 305, and each connecting protrusion 106 is inserted into one engaging hole 305 to realize riveting with the corresponding engaging plate 304; with such an arrangement, the coupling strength between the handle 30 and the exposed end can be improved.

In the above implementation, the joint 302 is provided with a needle hole 303, and the needle hole 303 is used for a clamping needle to pass through. With such an arrangement, after the clamping plate 10 is inserted into the clamping seat, the clamping pin can penetrate through the pin hole 303 and further abut against the clamping seat, so as to further test the clamping seat and the circuit board.

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; while the utility model has been described in detail and with reference to the foregoing embodiments, it will 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; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A test fixture, comprising: the test card comprises a clamping plate and a covering sheet, wherein a clamping groove used for containing a test card is formed in the installation side of the clamping plate, the covering sheet covers the installation side, the covering sheet is connected with the clamping plate in an openable mode, and the covering sheet is opposite to the clamping groove.

2. The test fixture of claim 1, wherein the first end of the cover sheet is hinged to the clamping plate, and the second end of the cover sheet is detachably connected to the clamping plate.

3. The test fixture of claim 2, wherein the second end of the cover sheet is clamped to the clamping plate.

4. The testing jig according to claim 3, wherein a first clamping portion and a second clamping portion are arranged at a second end of the covering sheet, and the first clamping portion and the second clamping portion are arranged oppositely;

the cardboard has and is located first end with third end and fourth end between the second end, the third end is provided with third joint portion, the fourth end is provided with fourth joint portion, first joint portion with third joint portion joint, second joint portion with fourth joint portion joint.

5. The test fixture of claim 4, wherein the first clamping portion comprises a first clamping plate extending towards the clamping plate, and the first clamping plate is bent to form a first clamping groove; the second clamping portion comprises a second clamping plate extending towards the clamping plate, and the second clamping plate is bent to form a second clamping groove.

6. The test fixture of claim 5, wherein the third clamping portion comprises a first protrusion extending outward of the card board, and the fourth clamping portion comprises a second protrusion extending outward of the card board.

7. The test fixture of any one of claims 1-6, wherein a top portion is disposed on a side of the cover sheet facing the card board, and the top portion is configured to abut against the test card.

8. The test fixture of any one of claims 1-6, further comprising a pull handle, wherein the clamping plate has an insertion end for insertion into a clamping seat of the test circuit board and an exposed end located outside the clamping seat, and the pull handle is connected with the exposed end.

9. The test fixture of claim 8, wherein a joint portion is disposed at one end of the handle, a joint plate is disposed on the joint portion, a connecting groove is disposed on the exposed end, the joint plate is attached to a groove bottom of the connecting groove, and the joint plate is riveted with the exposed end.

10. The test fixture of claim 9, wherein the edge of the joint portion is provided with a pinhole for passing a card needle.

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