CN219311128U

CN219311128U - Test fixture

Info

Publication number: CN219311128U
Application number: CN202320825660.8U
Authority: CN
Inventors: 黄尚银; 黄金明; 黄鹏; 鲁秋瑞; 郑泽鹏
Original assignee: Zhuhai Jingshi Measurement And Control Technology Co ltd
Current assignee: Zhuhai Jingshi Measurement And Control Technology Co ltd
Priority date: 2023-04-14
Filing date: 2023-04-14
Publication date: 2023-07-07
Anticipated expiration: 2033-04-14

Abstract

The utility model discloses a test fixture, comprising: a first frame; the accommodating part is arranged on the first rack and is used for accommodating a product to be tested; the pressing component is movably connected with the first rack and can move to a first position or a second position relative to the first rack; when the pressing component is positioned at the first position, the pressing component can press the product to be measured on the accommodating part, and when the pressing component is positioned at the second position, the pressing component avoids a path for taking out the product to be measured from the accommodating part; by the aid of the clamp, testing time can be effectively shortened, and testing efficiency is improved.

Description

Test fixture

Technical Field

The utility model relates to the technical field of testing, in particular to a testing clamp.

Background

The inertial measurement unit is a core device for sensing the flight attitude in the control system, is called IMU for short, and is a device for measuring the three-axis attitude and acceleration of an object; and calculating the posture of the object according to the calculated posture; the inertia measurement unit has good quality due to price, resolving algorithm and other differences, so that the inertia measurement unit is often required to be detected in all directions by an inertia test device before use, and a series of operations for improving accuracy, such as adjusting the inertia measurement unit and optimizing the resolving algorithm, are performed on the basis of the detection.

Among the existing test fixtures, the product to be tested is required to be locked on the fixture by the locking mechanism after being mounted on furniture, and the product to be tested is required to be taken out after the locking mechanism is detached after the test is completed, so that the detachment process is longer, and the whole test time is not facilitated to be shortened.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the test fixture which can effectively shorten the test time and improve the test efficiency.

The test fixture of the present utility model comprises: a first frame; the accommodating part is arranged on the first rack and is used for accommodating a product to be tested; the pressing component is movably connected with the first rack and can move to a first position or a second position relative to the first rack; when the pressing component is located at the first position, the pressing component can press the product to be measured on the accommodating portion, and when the pressing component is located at the second position, the pressing component avoids a path for taking out the product to be measured from the accommodating portion.

By applying the test fixture, a product to be tested can be placed in the accommodating part during testing, and then the compression assembly is moved to a first position, so that the compression assembly stably fixes the product to be tested in the accommodating part, and then testing is started; after the test is finished, the compressing assembly is moved to the second position, so that a path for taking out the product to be tested from the containing part can be reserved, and then the product to be tested is taken down; the whole testing process does not need to detach the compression assembly, so that the testing time can be effectively shortened, and the testing efficiency is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is an isometric view of a first test fixture according to an embodiment of the present utility model;

FIG. 2 is an isometric view of a first test fixture according to an embodiment of the present utility model with a product to be tested removed;

FIG. 3 is an isometric view of a first test fixture from another perspective in accordance with an embodiment of the present utility model;

FIG. 4 is a front view of an inertial test unit according to an embodiment of the present utility model;

FIG. 5 is an isometric view of a portion of an inertial test unit according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of the portion of the structure of FIG. 5 with the test fixture removed;

FIG. 7 is an isometric view of a second test fixture according to an embodiment of the present utility model;

FIG. 8 is a top view of the test fixture of FIG. 7;

FIG. 9 is a cross-sectional view taken along the direction A-A in FIG. 8;

FIG. 10 is a cross-sectional view taken along the direction B-B in FIG. 8;

FIG. 11 is a cross-sectional view taken along the direction C-C in FIG. 8;

the above figures contain the following reference numerals.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a plurality means one or more, and a plurality means two or more, and it is understood that greater than, less than, exceeding, etc. does not include the present number, and it is understood that greater than, less than, within, etc. include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 4 to 6, the inertia test apparatus of the present embodiment is characterized by comprising: a base 300; a first driving assembly 410 disposed on the base 300; the second frame 411 is arranged on the first driving component 410, and a main shaft of the first driving component 410 is in driving connection with the second frame 411; the first threading part penetrates through the main shaft of the first driving assembly 410 and the second rack 411, and is suitable for accommodating cables; a second driving assembly 420 disposed on the second frame 411; the third frame 421 is disposed on the second driving assembly 420, and a spindle of the second driving assembly 420 is in driving connection with the third frame 421; the second threading part penetrates through the main shaft of the second driving assembly 420 and the third rack 421, and is used for accommodating the cables; and the test fixture is arranged on the third rack 421 and is used for clamping the product 200 to be tested.

By using the inertia test apparatus, in the actual test process, the product 200 to be tested can be placed on the test fixture, and then the first driving component 410 and the second driving component 420 are controlled to drive the second rack 411 and the third rack 421 to rotate, so that the product 200 to be tested and the test fixture rotate in different directions; in the whole testing process, the cable passes through the two rotation centers of the first threading part and the second threading part; compared with the mode of wiring from the outside of the rotation state, the device can effectively reduce the occurrence of the winding condition of the cable and the rotation part, and reduce the equipment damage caused by the winding fracture of the cable.

Wherein, as shown in fig. 6, the first threading part actually penetrates the first driving component 410 and the second frame 411, the extending axis of the first threading part is just in line with the main shaft of the first driving component 410, and the second threading part is similar to the first threading part, and also penetrates the second driving component 420 and the third frame 421, and the extending axis of the first threading part is in line with the main shaft of the second driving component 420; the main shaft is a driving shaft for driving the corresponding frame to rotate.

As shown in fig. 4 to 6, the inertia test apparatus further includes: a third driving assembly 430 disposed on the third frame 421; the test fixture is arranged on the third driving assembly 430, and a main shaft of the third driving assembly 430 is in driving connection with the test fixture; the first driving component 410 can drive the second rack 411 to rotate around the axis in the up-down direction, the second driving component 420 can drive the third rack 421 to rotate around the axis in the left-right direction, the third driving component 430 can drive the test fixture to rotate, and three-axis rotation of the product 200 to be tested is finally realized in the test process; since the cable of the inertia test apparatus needs to be connected to the product 200 under test during the test, the cable can pass through the first threading portion and the second threading portion to be connected to the product 200 under test.

Specifically, as shown in fig. 7, the test fixture includes: a fourth frame 510 disposed on the main shaft of the third driving assembly 430; a placement part 531 disposed on the fourth frame 510, the placement part 531 being used for placing the product 200 to be tested; the third threading part penetrates through the main shaft of the third driving assembly 430 and the fourth frame 510, and is used for accommodating the cable; wherein, the cable can pass through the third threading part to be connected with the product 200 to be tested; because the threading parts are arranged at the three rotating shafts, the cable and each rack can be prevented from being wound in the testing process to the greatest extent.

Specifically, in order to reduce cable wearing and tearing, all be provided with the sliding ring including first threading portion, second threading portion and third threading portion three threading portions, effectively reduced the test process and when the torsion of cable self, further reduced the possibility of cable fracture.

As shown in fig. 5 and 6, the second frame 411 and the third frame 421 are gantry frames, the left and right ends of the third frame 421 are respectively connected with the left and right ends of the second frame 411 in a rotating manner, and the second driving component 420 is located at the left end of the second frame 411; specifically, the third frame 421 and the second frame 411 have two hinge positions at the same time, wherein the hinge position of the left end is provided with the second driving assembly 420, which effectively improves the stability of the rotation of the third frame 421 relative to the second frame 411.

As shown in fig. 5, the first driving assembly 410 includes: a driving motor provided on the base 300; the transmission assembly is arranged on the base 300, the input end of the transmission assembly is in driving connection with the driving motor, and the output end of the transmission assembly is connected with the main shaft of the first driving assembly 410; the transmission assembly is internally provided with a gear, a worm gear and other retrieval mechanisms, and the output end of the transmission assembly is connected with the main shaft; in the testing process, the power output by the driving motor is transmitted to the second rack 411 through the transmission assembly and the main shaft to drive the second rack 411 to rotate; wherein the second drive assembly 420 and the third drive assembly 430 are similar in mechanism.

As shown in fig. 4, the inertia test apparatus further includes a key module 320 disposed on the base 300; specifically, the entire base 300 includes an upper portion and a lower portion, the upper portion includes a test chamber, the base 300 is provided with the test chamber, and the first driving assembly 410, the second frame 411, the second driving assembly 420, the third frame 421 and the test fixture are all located in the test chamber; the test cabin is provided with a cabin door 330 which can be opened and closed, the cabin door 330 is closed in the whole course in the test process, the test environment is ensured to be airtight, the test precision is improved, and meanwhile, the product 200 to be tested is prevented from flying out, and on-site operators are injured.

Wherein the lower part of the base 300 comprises a cabinet, and an electric control equipment part of the whole inertia test apparatus is stored in the cabinet; the bottom of the base 300 is also provided with a roller assembly and a locking assembly to facilitate moving the device on the ground and securing the device on the ground after movement.

The base 300 is further provided with an operation module 310 and a warning light assembly 340, and the warning light assembly 340 is located above the base 300 and is used for sending out a lamplight warning signal; the operation module 310 is provided with interactive operation devices including a display, a mouse, etc. for controlling the entire inertia test apparatus; the base 300 is also provided with a key module 320, wherein the left side and the right side of the key module 320 are both provided with starting keys, and when the starting keys are simultaneously pressed by the left hand and the right hand of an operator, the cabin door 330 can be closed, and the testing device can be started; the purpose of preventing the operator from clamping hands is achieved.

The test fixture as shown in fig. 7 to 11 is a portion provided on the third driving assembly 430 for clamping the product 200 to be tested, and in particular, the sexual test fixture is characterized by comprising: a fourth frame 510; a placement part 531 disposed on the fourth frame 510, the placement part 531 being used for placing the product 200 to be tested; a fixing device movably disposed on the fourth frame 510, the fixing device being used for fixing the product 200 to be tested on the placement portion 531; a locking device movably provided on the fourth chassis 510, the locking device being capable of moving to lock the fixing device when the fixing device fixes the product 200 to be measured on the placement part 531; the terminal assembly 537 is disposed on the locking means, and the terminal assembly 537 is electrically connected to the product 200 to be tested when the locking means is moved to the locking means.

By applying the test fixture, in the actual test process, the product 200 to be tested can be placed in the placement part 531, then the fixing device is moved to fix the product 200 to be tested in the placement part 531, and then the fixing device is locked by the moving locking device, so that the product 200 to be tested is stably arranged on the placement part 531, and the terminal assembly 537 is connected with the product 200 to be tested while the fixing device is locked by the moving locking device, so that the test can be started; in the whole process, the terminal component 537 is arranged on the locking device, when the locking device locks the fixing device, the terminal component 537 can be electrically connected with the product 200 to be tested, namely, the product 200 to be tested is ensured to be placed correctly, the locking device can lock the fixing device, then, the terminal component 537 can be electrically connected with the product 200 to be tested, namely, the test can be started after the product 200 to be tested is fixed in place, and cable breakage and equipment damage caused by starting the test when the product 200 to be tested is not fixed well are effectively reduced.

The first test assembly, the second test assembly and the third test assembly form a set of triaxial moving assemblies together with the racks, and the test fixture is placed at the tail ends of the triaxial moving assemblies.

Wherein the fixing device may fix the product 200 to be measured on the placement part 531 in various manners, for example, press the product 200 to be measured on the placement part 531 by a pressing block, or fix the product 200 to be measured on the placement part 531 by a latch; after the fixing device fixes the product 200 to be measured on the placement part 531, the product 200 to be measured can be fixed in the placement part 531 only by keeping the current position of the fixing device; the locking device is used for keeping the current locking position of the fixing device, when the locking device drives the terminal assembly 537 to move to lock the fixing device, the terminal assembly 537 is connected with the device to be tested, and in this state, the stability of placing the product to be tested 200 on the placing part 531 is ensured, and the stability of electrically connecting the terminal assembly 537 with the product to be tested 200 is also ensured.

Wherein, be provided with the holding tank that is used for holding the product 200 that awaits measuring on placing portion 531, the inner wall of holding tank has the teflon coating, can effectively reduce the product 200 scratch that awaits measuring.

Specifically, as shown in fig. 7, the fixing means includes a locking handle 532 rotatably connected to the fourth chassis 510, the locking handle 532 being rotatable to press the product 200 to be measured into the placing part 531; wherein the locking handle 532 can be rotated to above the product 200 to be measured and press the product 200 to be measured against the placing part 531; when the product 200 to be tested is placed correctly in the portion to be tested, the locking handle 532 can be rotated to the correct position to press the product 200 to be tested, and at this time, the locking device can lock the current position of the locking handle 532, so that the product 200 to be tested is ensured to be fixed accurately in the placing portion 531, and the terminal assembly 537 is connected with the product 200 to be tested in place.

Specifically, the fixing device further includes a pressing pad 533 disposed at the lower end of the locking handle 532, where the pressing pad 533 can abut against the product 200 to be tested; when the locking handle 532 is rotated to above the product, the pressing pad 533 is pressed against the product 200 to be tested, and transmits the downward pressure to the product 200 to be tested; the pressing pad 533 is made of soft materials such as rubber, so that the situation that the locking handle 532 crushes the product 200 to be tested can be effectively reduced.

As shown in fig. 7 and 9, the front end of the locking handle 532 is fixedly provided with a grip, so that an operator can rotate the locking handle 532 to lock or unlock the product 200 to be measured in the placing portion 531.

As shown in fig. 10, the fixing device further includes a pre-tightening assembly 536 provided on the locking handle 532, and the pre-tightening assembly 536 is capable of providing a certain pre-tightening force for maintaining a fixed state to the locking handle 532 when the locking handle 532 presses the product 200 to be measured into the placing part 531; when the locking handle 532 rotates to a position where the product 200 to be tested is fixed, the pretension component 536 can provide a pretension force to enable the locking handle 532 to keep a current manual position, and then the locking device can lock the locking handle 532, so that a fault that the locking device cannot lock the locking handle 532 due to loosening of the locking handle 532 is avoided.

As shown in fig. 9, a ball is provided at the front end of the pre-tightening assembly 536, a groove capable of being matched with the ball is provided at a corresponding position on the placement portion 531, and when the locking handle 532 rotates to the locking position, the ball can be matched with the groove to provide a certain pre-tightening force for the locking handle 532, so that the locking device can smoothly move to the position of locking the locking handle 532.

Wherein the pretensioning assembly 536 is threadedly engaged with the locking handle; as shown in fig. 9, the pretension assembly 536 can be adjusted in position by threaded engagement to adjust the pretension provided to the locking handle 532 after the ball engages the recess.

As shown in fig. 7, 10 and 11, the locking device includes: a locking assembly 534 slidably coupled to the fourth housing 510, the terminal assembly 537 being disposed on the locking assembly 534; the locking cantilever is fixedly arranged on the locking assembly 534, and when the locking handle 532 rotates to press the product 200 to be tested into the placing part 531, the locking cantilever can move to the upper part of the locking handle 532 and prevent the locking assembly 534 from rotating under the driving of the locking assembly 534; wherein, the locking component 534 can drive the locking cantilever to move back and forth, and when the locking cantilever moves to the upper part of the locking handle 532, the locking handle 532 can be prevented from rotating, so that the locking handle 532 keeps the state of pressing the product 200 to be tested in the placing part 531; when the locking assembly 534 drives the locking cantilever to retract, the locking handle 532 can be rotated upwards to the unlocking position, and the product 200 to be tested can be taken out; before testing, if the positions of the product 200 to be tested placed in the placement portion 531 are not aligned, the locking handle 532 cannot be rotated to the locking position, the locking assembly 534 and the locking cantilever cannot be moved forward to the locking position, and the terminal assembly 537 cannot be electrically connected to the component to be tested, i.e., the test cannot be started; it is ensured that the test work can be performed after the product 200 to be tested is installed in place.

As shown in fig. 10, a locking slide rail 542 extending in the front-rear direction is provided on the fourth housing 510, a locking slider 541 is provided on the locking assembly 534, and the locking assembly 534 is slidably engaged with the locking slider 541.

As shown in fig. 7 and 11, the test fixture further includes a clamping component 535 rotatably disposed on the fourth rack 510, and when the locking cantilever is moved above the locking arm under the driving of the locking component 534, the clamping component 535 can rotate to clamp the locking component 534; wherein, clamping subassembly 535 and locking subassembly 534 are last to be provided with the trip respectively, and two trips can mutually support, and when locking subassembly 534 moved forward to the locked position, clamping subassembly 535 can rotate to two trips mutually support for locking subassembly 534 maintains the locked position, in the test process, effectively guarantees the stability of the product 200 that awaits measuring in place portion 531 in the middle of.

In order to prevent the two hooks from loosening during the testing process, a second elastic member 540 is connected between the clamping component 535 and the fourth rack 510, and the second elastic member 540 can drive the clamping component 535 to rotate so that the clamping component 535 maintains the state of clamping the locking component 534; during the testing process, the second elastic member 540 can drive the clamping component 535 so that the hook of the clamping component 535 is tightly hooked to the hook of the locking component 534, and after the testing is finished, the clamping component 535 can be moved so that the hook of the clamping component 535 is separated from the hook of the locking component 534.

As shown in fig. 11, a first elastic member 539 is connected between the fourth housing 510 and the locking assembly 534, and the first elastic member 539 can drive the locking assembly 534 to move backward; when the two hooks are separated from each other, the first elastic member 539 can drive the locking assembly 534 to move backward, so as to release the locking state, and at this time, the locking handle 532 can be rotated to take out the component to be tested.

As shown in fig. 10, a first elastic member 539 is connected between the fourth housing 510 and the locking assembly 534, and the first elastic member 539 can drive the locking assembly 534 to move backward; when the two hooks are disengaged, the first elastic member 539 can drive the locking assembly 534 to drive the locking cantilever to move backward, and at this time, the locking handle can be rotated to take out the product 200 to be tested.

As shown in fig. 8, an auxiliary testing unit 520 is further disposed on one side of the fourth frame 510, and the auxiliary testing unit 520 also includes a complete IMU unit, and the auxiliary testing unit 520 and the product 200 to be tested move together during the testing process to calibrate the test data.

As shown in fig. 1 to 3, another test fixture is also disposed at the end of the triaxial moving assembly for clamping the products 200 to be tested with different types and specifications; specifically, such a test fixture includes: a first chassis 100; the accommodating part 110 is arranged on the first rack 100, and the accommodating part 110 is used for accommodating a product 200 to be tested; the pressing assembly 123 is movably connected with the first frame 100, and the pressing assembly 123 can move to a first position or a second position relative to the first frame 100; when the pressing assembly 123 is located at the first position, the pressing assembly 123 can press the product 200 to be tested on the accommodating portion 110, and when the pressing assembly 123 is located at the second position, the pressing assembly 123 avoids a path along which the product 200 to be tested is taken out of the accommodating portion 110.

By applying the above-mentioned test fixture, the product 200 to be tested can be placed in the accommodating portion 110 during testing, and then the pressing assembly 123 is moved to the first position, so that the pressing assembly 123 stably fixes the product 200 to be tested in the accommodating portion 110, and then testing is started; after the test is finished, the pressing component 123 is moved to the second position, so that a path for taking out the product 200 to be tested from the accommodating part 110 can be obtained, and then the product 200 to be tested is taken down; the whole testing process does not need to detach the pressing component 123, so that the testing time can be effectively shortened, and the testing efficiency is improved.

The pressing assembly 123 can be switched between the first position and the second position in various manners, for example, the pressing assembly 123 is slidably connected or rotatably connected with the first frame 100, and the position is switched by a sliding or rotating movement manner.

As shown in fig. 2, the upper end of the accommodating portion 110 is provided with an opening, when the pressing assembly 123 is located at the first position, the pressing assembly 123 is located above the product 200 to be tested, and when the pressing assembly 123 is located at the second position, the pressing assembly 123 is away from a position above the opening of the accommodating portion 110; wherein, the product 200 to be tested is put into the accommodating part 110 or taken out from the opening at the upper end of the accommodating part 110; when the pressing assembly 123 is located at the first position, the pressing assembly 123 presses down the component to be tested above the product to be tested 200; when the pressing assembly 123 is located at the second position, the pressing assembly 123 can avoid opening the upper end opening of the accommodating portion 110, so that the product 200 to be tested can be taken out more smoothly.

Specifically, the pressing component 123 is rotatably connected with the accommodating portion 110, and the pressing component 123 can rotate to a first position or a second position; the inner end of the pressing component 123 can rotate to press the product 200 to be tested, and the first position of the pressing component 123 is the moment; the inner end of the pressing component 123 may also rotate to a position away from the upper end opening of the accommodating portion 110, which is the second position of the pressing component 123.

As shown in fig. 1 and 2, the test fixture further includes a driving device, where the driving device is used to drive the pressing component 123 to rotate to the first position or the second position; specifically, the driving device can drive the pressing assembly 123 to rotate, so that the pressing assembly 123 is switched between the first position and the second position; at this time, the driving device may directly drive the compressing assembly 123 to rotate by using the motor, or may drive one end of the compressing assembly 123 to move by using the linear module, so that the whole compressing assembly 123 rotates.

Specifically, the driving device includes a compressing cylinder 121 disposed on the first frame 100, a piston of the compressing cylinder 121 is rotationally connected with the compressing assembly 123, specifically, the piston of the compressing cylinder 121 is fixedly connected with the compressing link 122, the compressing link 122 is rotationally connected with an outer end of the compressing assembly 123, and the cylinder drives the compressing link 122 to move up and down, so that the compressing assembly 123 can be controlled to rotate, and the compressing assembly 123 is switched between the first position and the second position.

As shown in fig. 3, the plurality of pressing assemblies 123 are provided, and the plurality of pressing assemblies 123 are distributed along the circumferential direction of the accommodating portion 110; specifically, there are 2 pressing assemblies 123, and each pressing assembly 123 is driven by one pressing cylinder 121 to press down the product 200 to be measured at different positions on the outer periphery of the accommodating portion 110.

As shown in fig. 3, the test fixture further includes a test plug 132 slidably disposed on the first rack 100, and the test plug 132 can be slid to insert the product 200 to be tested after the product 200 to be tested is placed on the accommodating portion 110; after the product 200 to be tested is mounted in the placement portion 531 at a predetermined position, the test plug 132 can be directly moved so that the test plug 132 is inserted into the product 200 to be tested, thereby facilitating the test.

Specifically, the test fixture further includes a plugging cylinder 131 disposed on the first rack 100, where the plugging cylinder 131 can drive the test plug 132 to slide; the plugging cylinder 131 can drive the test plug 132 to slide, so that the test plug 132 is inserted into the product 200 to be tested.

As shown in fig. 3, the bottom of the accommodating portion 110 is provided with a position switch 140, and when the product 200 to be tested is placed in the accommodating portion 110, the position switch 140 can be triggered by the product 200 to be tested; when the product 200 to be tested is correctly placed in the accommodating portion 110, the position switch 140 is triggered, and the control system can control the compression cylinder 121 to drive the compression assembly 123 to switch to the first position, and simultaneously control the plug cylinder to drive the test plug 132 to insert into the product 200 to be tested; after the test is finished, the control system can control the pressing cylinder 121 to drive the pressing assembly 123 to switch to the second position and control the plugging cylinder 131 to drive the test plug 132 to pull out the product 200 to be tested, and then the product 200 to be tested can be taken out.

As shown in fig. 2, the pressing assembly 123 is provided with a cushion pad that abuts against the product 200 to be tested when the pressing assembly 123 is in the first position.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. A test fixture, comprising:

a first chassis (100);

the accommodating part (110) is arranged on the first rack (100), and the accommodating part (110) is used for accommodating a product (200) to be tested;

a hold-down assembly (123) movably coupled to the first housing (100), the hold-down assembly (123) being movable relative to the first housing (100) to a first position or a second position;

when the pressing assembly (123) is located at a first position, the pressing assembly (123) can press the product (200) to be tested on the accommodating portion (110), and when the pressing assembly (123) is located at a second position, the pressing assembly (123) avoids a path of the product (200) to be tested taken out from the accommodating portion (110).

2. The test fixture according to claim 1, wherein the upper end opening of the accommodating portion (110) is arranged, the pressing assembly (123) is located above the product (200) to be tested when the pressing assembly (123) is located at the first position, and the pressing assembly (123) is located at a position above the opening of the accommodating portion (110) when the pressing assembly (123) is located at the second position.

3. The test fixture according to claim 2, characterized in that the compression assembly (123) is rotatably connected to the receiving portion (110), the compression assembly (123) being rotatable to the first position or the second position.

4. A test fixture according to claim 3, further comprising drive means for driving the compression assembly (123) into rotation to the first or second position.

5. The test fixture according to claim 4, characterized in that the driving means comprise a hold-down cylinder (121) arranged on the first frame (100), the piston of the hold-down cylinder (121) being in rotational connection with the hold-down assembly (123).

6. The test fixture according to claim 1, wherein a plurality of said hold-down assemblies (123) are provided, a plurality of said hold-down assemblies (123) being distributed along a circumference of said receiving portion (110).

7. The test fixture of claim 1, further comprising a test plug (132) slidably disposed on said first housing (100), said test plug (132) being capable of sliding into insertion with said product (200) under test after said product (200) under test is placed on said receptacle (110).

8. The test fixture according to claim 7, further comprising a plug cylinder (131) provided on the first frame (100), the plug cylinder (131) being capable of driving the test plug (132) to slide.

9. The test fixture according to claim 8, characterized in that the bottom of the housing (110) is provided with a position switch (140), which position switch (140) can be triggered by the product (200) to be tested when the product (200) to be tested is placed in the housing (110).

10. The test fixture according to claim 1, characterized in that the compression assembly (123) is provided with a cushion which abuts the product (200) to be tested when the compression assembly (123) is in the first position.