CN219328584U

CN219328584U - Test fixture and test device

Info

Publication number: CN219328584U
Application number: CN202320707318.8U
Authority: CN
Inventors: 黄金明; 郑泽鹏; 陈永东; 黄尚银
Original assignee: Zhuhai Jingshi Measurement And Control Technology Co ltd
Current assignee: Zhuhai Jingshi Measurement And Control Technology Co ltd
Priority date: 2023-04-03
Filing date: 2023-04-03
Publication date: 2023-07-11
Anticipated expiration: 2033-04-03

Abstract

The utility model discloses a test fixture and a test device. The test fixture includes: a base; the transverse guide rail is arranged on the base and extends along the left-right direction; the edge sliding block is arranged on the transverse guide rail and is in sliding fit with the transverse guide rail; the bearing part is fixedly arranged on the edge sliding block and is used for bearing a product to be tested; the locking device is used for locking or unlocking the relative position of the edge sliding block and the transverse guide rail; by the aid of the clamp, adaptability to products to be tested of different specifications can be improved, and testing efficiency is improved.

Description

Test fixture and test device

Technical Field

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

Background

In the optical device, a lens is taken as a vertex, and an included angle formed by two edges of the maximum range of the lens can be passed through an object image of a measured object, which is called a field angle, and the size of the field angle reflects the field range of the optical device; in the process of production and research and development of flat-panel televisions and other devices, in order to determine the field of view of an infrared remote control signal receiver of a television, the field angle of the infrared remote control signal receiver of the television needs to be tested.

In the current field angle test link of the television infrared remote control signal receiver, a flat television is usually placed on a designated fixture, so that the stability of the flat television during test is ensured; when the size specification of the test television is changed, clamps with different specifications are required to be replaced according to the television size, so that inconvenience is brought to test work, and the test efficiency is reduced.

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 improve the adaptability to products to be tested with different specifications and improve the test efficiency.

The test fixture of the present utility model comprises: a base; the transverse guide rail is arranged on the base and extends along the left-right direction; the edge sliding block is arranged on the transverse guide rail and is in sliding fit with the transverse guide rail; the bearing part is fixedly arranged on the edge sliding block and is used for bearing a product to be tested; and the locking device is used for locking the relative position of the edge sliding block and the transverse guide rail or unlocking the edge sliding block and the transverse guide rail.

By applying the test fixture, in the test process, a product to be tested can be placed on the bearing part, and then the field angle test mechanism is controlled to test the field angle of the product to be tested; when the size specification of the product to be detected is changed, the locking device can be controlled to unlock the edge sliding block, and the locking device is controlled to lock the edge sliding block after the position of the edge sliding block on the transverse guide rail is adjusted; the test device can adapt to the test of products to be tested with different specifications without changing the clamp, and improves the test efficiency.

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 an angle of view testing apparatus in accordance with an embodiment of the present utility model;

FIG. 2 is an isometric view of the securing mechanism of FIG. 1;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is an enlarged view at C in FIG. 2;

FIG. 6 is a schematic view of an adjustment mechanism of the test apparatus of FIG. 1;

FIG. 7 is a cross-sectional view of the adjustment mechanism of FIG. 6;

FIG. 8 is a schematic diagram of a testing mechanism of the testing device of FIG. 1;

FIG. 9 is a schematic diagram of another view of the testing mechanism of FIG. 8;

FIG. 10 is a cross-sectional isometric view taken along line A-A of FIG. 9;

FIG. 11 is an enlarged view at B in FIG. 10;

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. 1 to 11, the present embodiment provides a viewing angle testing apparatus including a testing jig 100 and a testing section 200, wherein the testing jig 100 is used for fixing a product 400 to be tested, and the testing section 200 is used for testing the viewing angle of the product 400 to be tested; in this embodiment, the product 400 to be tested is a flat tv, and the field angle testing device of this embodiment is used for testing the field angle of the remote control infrared signal receiver of the flat tv; of course, the viewing angle testing device of the embodiment can also be used for testing the viewing angles of other products.

As shown in fig. 1, the base includes a cabinet 110 and a fixing frame 300, wherein the cabinet 110 and the fixing frame 300 are fixedly connected, the entire test fixture 100 is disposed on the cabinet 110, and the test part 200 is disposed on the fixing frame 300; wherein, mount 300 and rack 110 below all are provided with the gyro wheel, are convenient for whole migration whole angle of view testing arrangement, and mount 300 and rack 110 below all are provided with locking device in addition, after moving whole angle of view testing arrangement to the assigned position, can be fixed device and bottom surface.

The test part 200 is integrally divided into an adjusting part and a viewing angle test mechanism, wherein the adjusting part is used for integrally adjusting the position of the viewing angle test mechanism, and the viewing angle test mechanism is used for testing the viewing angle of the product 400 to be tested.

As shown in fig. 8 to 11, the viewing angle testing mechanism of the present embodiment includes: a fourth rack 221; an arc-shaped limiting mechanism provided on the fourth frame 221; the test assembly 227 is movably arranged on the arc-shaped limiting mechanism, and the arc-shaped limiting mechanism can limit the movement of the arc-shaped limiting mechanism, so that the test assembly 227 moves along an arc-shaped path; the driving device is arranged on the arc-shaped limiting mechanism and is used for driving the test assembly 227 to move along an arc-shaped path.

By using the above-mentioned angle-of-view testing mechanism, during the testing process, the test component 227 can be placed in front of the test component 227, then the driving device is controlled to drive the test component 227 to move to different positions along the arc path under the limit of the arc limiting mechanism, the product 400 to be tested is tested, and the angle of view of the product 400 to be tested can be determined by the moving range of the test component 227 on the arc path when the test component 227 is in effective communication with the product 400 to be tested; compared with the scheme that a mechanical arm is adopted to drive the test assembly 227 to move in the prior art; the test assembly 227 can be effectively ensured to move along the arc-shaped path only by the driving of a single driving device, and the control difficulty is effectively reduced.

Wherein, the arc stop gear can limit the test assembly 227 through multiple modes for the test assembly 227 moves along the arc path, for example, limit the movement of the test assembly 227 through the arc track 232 or the arc groove, or connect the test assembly 227 through rotating one end of the connecting rod to the other end of the fourth frame 221, so that the test assembly 227 moves with the connecting rod as a radius, etc.

It will be appreciated that the driving device may also drive the test assembly 227 to move along the arc-shaped path in various manners, for example, the driving device drives the connecting rod to rotate by a motor, a pneumatic motor, etc. to drive the test assembly 227 to move along the arc-shaped path; or the prime motor drives the traction belt or the traction rope and other mechanisms to drive the test assembly 227 to move along an arc-shaped path and the like.

It should be noted that, when the portion to be tested of the product 400 to be tested is a signal receiving end, the test component 227 can be used as a signal transmitting end, and the moving angle range of the test component 227, in which the signal transmitted by the test component 227 can be received by the signal receiving end during the test, is the field angle of the product 400 to be tested; when the portion to be tested of the product 400 to be tested is a signal transmitting end, the test component 227 can be used as a signal receiving end, and when the test component 227 can receive a signal transmitted by the signal transmitting end of the product 400 to be tested during testing, the moving angle range of the test component 227 is the angle of view of the product 400 to be tested.

The embodiment also provides a field angle testing method, at least moving the field angle testing mechanism part of the field angle testing device, comprising the following steps: s100, placing a product 400 to be tested in front of a view angle testing mechanism; s200, controlling a driving device to drive the test assembly 227 to move along an arc path, and recording the movement angle range of the test assembly 227 when the test assembly 227 can establish communication connection with the product 400 to be tested; the moving range is the angle of view of the product 400 to be tested, wherein the test component 227 can establish communication connection with the product 400 to be tested includes the situation that the signal emitted by the product 400 to be tested can be received by the test component 227, and the signal emitted by the test component 227 can be received by the product 400 to be tested; for example, in the process of testing a certain product 400 to be tested, when the signal emitted by the test component 227 can be received by the product 400 to be tested, the movement range of the test component 227 on the arc path is an arc with a central angle of 45 degrees, and then the angle of view of the product 400 to be tested is 45 degrees.

As shown in fig. 8, the viewing angle testing device further includes: the rotary driving mechanism is arranged on the fourth rack 221 and can drive the arc-shaped limiting mechanism to rotate, and the rotation axis of the arc-shaped limiting mechanism coincides with the plane where the arc-shaped path is located; specifically, as shown in fig. 8, the plane of the arc path where the test component 227 moves is the plane shown in fig. 8, and the rotation axis of the rotation driving mechanism is located in the plane, and in the state of the angle of view test mechanism shown in fig. 1, the plane of the arc path is a vertical plane, and the rotation driving mechanism can drive the arc limiting mechanism to rotate, so that the plane of the arc path also rotates; in step S200, the rotary driving mechanism is controlled to drive the arc mechanism to rotate to different positions, and then drive the test assembly 227 to move along the arc path and record the movement angle range of the test assembly 227 when the test assembly 227 can establish communication connection with the product 400 to be tested; the driving device can drive the test assembly 227 to move to different positions along an arc, and the rotary driving mechanism can drive the arc limiting mechanism to rotate to different positions, so that the test assembly 227 can move to different positions along the arc after the position change, and the test assembly 227 can move in space along each point in a part of a spherical surface to accurately test the field of view range of the product 400 to be tested.

Wherein the rotary driving mechanism can also drive the arc-shaped limiting mechanism to rotate in various modes, for example, by a motor or a pneumatic motor

It should be noted that the coincidence of the rotation axis of the arc-shaped limiting mechanism and the plane of the arc-shaped path means that in the plane shown in fig. 8, the rotation axis of the arc-shaped limiting mechanism coincides with the projection of the arc-shaped path; it does not necessarily mean that the two coincide in space.

Specifically, as shown in fig. 8 to 10, the rotation driving mechanism includes: a rotating motor 222, disposed on the fourth frame 221, the rotating motor 222 being used for driving the arc-shaped limiting mechanism to rotate; in step S200, the rotation driving mechanism is controlled to drive the arc mechanism to rotate to different positions, then the test assembly 227 is driven to move along an arc path and the movement angle range of the test assembly 227 is recorded when the test assembly 227 can establish communication connection with the product 400 to be tested, wherein the rotation motor 222 can drive the whole arc limiting mechanism to rotate around the axis in the front-back direction, the rotation motor 222 can adopt a servo motor, or can adopt other types of motors such as a stepping motor, and the rotation position of the arc limiting mechanism can be accurately controlled; as shown in fig. 8, the fourth frame 221 is provided with a bearing for supporting the rotating shaft and a coupling for connecting the rotating shaft with the rotating part of the rotating motor 222, and the fourth frame 221 is further provided with a rotation detecting mechanism for detecting the rotating positions of the rotating shaft and the arc limiting mechanism; the rotation detecting mechanism can detect the rotation position of the rotating shaft and the arc limiting mechanism in various ways, for example, the rotation position of the rotating shaft is detected by an encoder, or the rotation position is detected by an angular displacement sensor of the rotating motor 222; in step S200, the rotation detection mechanism can provide the rotation position of the arc-shaped limiting mechanism for the control system in real time, so that the system can more accurately control the rotation of the arc-shaped limiting mechanism.

As shown in fig. 8-11, in some embodiments, the arcuate stop mechanism includes: an end bracket 223 provided on the fourth frame 221; an arc-shaped rail 232 arranged on the fourth rack 221, wherein the arc-shaped rail 232 extends along an arc-shaped path, and the test assembly 227 is in sliding fit with the arc-shaped rail 232; the driving device is used for driving the test assembly 227 to slide relative to the arc-shaped track 232; in step S200, the driving device can drive the test assembly 227 to move along the arc-shaped track 232, so that the test assembly 227 can stably move along the arc-shaped path and test the product 400 to be tested.

As shown in fig. 8 to 10, the driving device includes: a moving motor 233 provided on the end bracket 223; a driving wheel 229 rotatably provided on the end bracket 223, and a moving motor 233 for driving the driving wheel 229 to rotate; a driving belt 224 in driving engagement with the driving wheel 229; the arc-shaped limiting piece 225 is arranged on the tail end bracket 223, the arc-shaped limiting piece 225 is provided with a limiting part extending along an arc-shaped path, and an extending arc of the limiting part is concentric with the extending path of the arc-shaped track 232; the driven wheel 230 is rotatably arranged at the end part of the arc-shaped limiting piece 225, the driven wheel 230 is matched with the driving belt 224, and the driven wheel 230 can enable the driving belt 224 to abut against the limiting part; the transmission belt 224 is fixedly connected with the test assembly 227; in step S200, the moving motor 233 may be controlled to drive the driving wheel 229 to rotate, so that the driving belt 224 moves, and since the driving belt 224 is tensioned by the driven wheel 230 and abuts against the arc-shaped limiting member 225, the portion of the driving belt 224 abutting against the arc-shaped limiting member 225 is fixedly connected with the test component 227, and thus the moving motor 233 rotates to drive the test component 227 to change positions on the arc-shaped path; it should be noted that the fact that the extension arc of the limiting portion is concentric with the extension path of the arc-shaped track 232 means that the projection of the extension arc of the limiting portion is concentric with the projection of the extension path of the arc-shaped track 232 under the view angle of fig. 8; it is not meant that the arc of extension of the stop is concentric in space with the path of extension of the arcuate track 232.

Compared with a mode of adopting an arc-shaped rack to drive, the condition that the arc-shaped rack stretches out towards two sides of the arc-shaped limiting piece 225 and interferes with other parts can be effectively reduced by adopting the transmission belt 224 to drive the test assembly 227 to move; here, the belt 224 may be implemented by a belt or a chain.

Specifically, as shown in fig. 8 and 9, there are two driven wheels 230, and the two driven wheels 230 are respectively located at two ends of the arc-shaped limiting member 225; at this time, the two driven wheels 230 are respectively at two ends of the arc-shaped limiting member 225, and press the driving belt 224 on the limiting portion backwards; the part of the transmission belt 224 abutting against the limiting part is ensured to slide along the arc, and the test assembly 227 is driven to move along the arc track.

As shown in fig. 8, the driving device further comprises a tensioning wheel 231, the tensioning wheel 231 is rotatably arranged on the tail end bracket 223, and the tensioning wheel 231 is matched with the driving belt 224; the tensioning wheel 231 is used for tensioning the belt wheel moving in a whole closed cycle, and transmission accuracy is improved.

As shown in fig. 10 and 11, the transmission belt 224 is a synchronous belt, and the test assembly 227 is fixedly connected with an engagement block 234, and the engagement block 234 is engaged with the synchronous belt; the tooth block on the engagement block 234 is inserted into a tooth slot on the synchronous belt, the engagement block 234 is connected with the test component 227 through the engagement connecting piece 235, and the synchronous belt can drive the test component 227 to move along an arc path.

As shown in fig. 10, the driving device further includes a position detecting device disposed on the end bracket 223, and the position detecting device is used for detecting the position of the test assembly 227 relative to the arc-shaped track 232; in step S200, the position detecting device may detect the moving position of the test component 227 on the arc path, so as to facilitate detection control; wherein the position detection device is capable of detecting the position of the test element 227 in a number of ways; for example, an encoder is arranged at the rotating shaft of the mobile motor 233, and the moving amount of the position of the test component 227 is calculated by detecting the rotating amount of the mobile motor 233; or a position sensor extending along an arc-shaped path is provided on the end bracket 223 to directly detect the moving position of the test assembly 227.

As shown in fig. 8, the view angle testing mechanism further includes: the rotation driving mechanism is arranged on the fourth rack 221, and can drive the tail end support 223 to rotate, the rotation axis of the tail end support 223 is collinear with the radius of the extension arc line of the limiting part, and the extension arc line of the extension part is symmetrical to the parts positioned on two sides of the rotation axis of the tail end support 223; specifically, referring to the view angle shown in fig. 8, the rotation axis of the end bracket 223 is the rotation axis of the rotary motor 222, which horizontally extends in the front-rear direction; the angles of the parts of the extension arc lines of the extension part, which are positioned on the upper side and the lower side of the rotation axis, are equal and are approximately 70 degrees; in step S100, the driving device may be controlled to move the test component 227 to the middle position of the arc path, where the center of the arc path and the test component 227 are located at the same horizontal plane, and the position of the portion to be tested of the product 400 to be tested is set at a position in front of the test component 227 where the distance is close to the radius of the arc path; in step S200, the test component 227 is moved to each position along the arc path, and the distances from the portion to be tested are approximately equal, so that the accuracy of testing the angle of view is greatly improved.

As shown in fig. 8, the field angle testing mechanism further comprises a positioning rod 228, and the positioning rod 228 is detachably connected with the testing component 227; in step S100, the positioning rod 228 is mounted on the test component 227, and the position of the angle-of-view test mechanism and/or the product 400 to be tested is adjusted so that the end of the positioning rod 228 is located at the position to be tested of the product 400 to be tested, then the positioning rod 228 is removed, the end position of the positioning rod 228 is the center of the arc path, and the calibration step is adopted so that the center of the arc path of the part to be tested of the product 400 to be tested is as close as possible to the center of the arc path of the test component 227; in the test in step S200, the test component 227 is moved to each position along the arc path, and the distances from the portion to be tested are approximately equal, so that the accuracy of testing the angle of view is greatly improved.

As shown in fig. 6 and 7, the adjusting portion is provided on the base, and specifically includes: a first frame 211 disposed on the base; the second rack 212 is arranged on the first rack 211, and the second rack 212 is connected with the first rack 211 in a sliding way along the up-down direction; the third rack 214 is arranged on the second rack 212, and the third rack 214 is connected with the second rack 212 in a sliding way along the front-back direction; a field angle testing mechanism disposed on the third frame 214; and adjusting means for adjusting the up-down position of the second frame 212 with respect to the first frame 211, and/or the front-back position of the third frame 214 with respect to the second frame 212.

With the above-mentioned angle-of-view testing device, during the testing process, the device to be tested may be placed on the front side of the testing component 227, and then the adjusting device is controlled to adjust the up-down position of the second rack 212 and/or the front-back position of the third rack 214, so that the angle-of-view testing mechanism is located at a suitable position, and then the angle-of-view testing is started; compared with the prior art, the method can effectively improve the testing adaptability of the products 400 to be tested with different sizes; that is, in step S100, the position of the portion to be tested of the product 400 to be tested may be as close to the center of the arc path as possible by adjusting the up-down position of the second rack 212 relative to the first rack 211 and/or the front-back position of the third rack 214 relative to the second rack 212, so as to improve the testing accuracy.

Wherein the adjusting device can adjust the up-down position of the second frame 212 relative to the first frame 211 and/or the front-back position of the third frame 214 relative to the second frame 212 in a plurality of ways; the up-down position of the second frame 212 with respect to the first frame 211, and/or the front-back position of the third frame 214 with respect to the second frame 212, etc., are adjusted, for example, by a plurality of independently provided motor lead screw mechanism modules or motor rack-and-pinion modules.

As shown in fig. 7 and 8, the adjusting device includes a worm screw lifter provided on the first frame 211, and a lifting screw 218 of the worm screw lifter abuts against the second frame 212; the turbine screw lifter is a common lifting position adjusting device, has reverse self-locking performance, and can enable the second rack 212 to better keep the current upper and lower positions after adjustment is completed, so that the stability of the upper and lower positions of the field angle testing mechanism in the testing link of the step S200 is ensured.

Specifically, a lifting hand wheel 213 is arranged on the turbine screw rod lifter, and the lifting hand wheel 213 is used for driving the lifting screw rod 218 to rotate; wherein the field operator can adjust the up and down position of the second housing 212 by rotating the hand wheel.

As shown in fig. 6, the left and right sides of the second frame 212 are provided with lifting sliding blocks, the first frame 211 is provided with lifting sliding rails, the lifting sliding rails extend along the up-down direction, and the lifting sliding blocks are in sliding fit with the lifting sliding rails; the lifting slider and the lifting sliding rail can ensure stable lifting of the second rack 212 relative to the first rack 211.

As shown in fig. 6 and 7, the adjusting device includes: a translation screw 217 rotatably provided on the second frame 212, the translation screw 217 extending in the front-rear direction; the translation nut is fixedly arranged on the third frame 214 and is in threaded fit with the translation screw rod 217; in step S100, the front-rear position of the third rack 214 may be adjusted by rotating the translation screw 217, so that the position of the portion to be measured of the product 400 to be measured is as close to the center of the arc path as possible; in addition, the screw-nut mechanism has good self-locking performance, and can ensure that the adjusted position of the third rack 214 can be well maintained after the adjustment is completed.

Referring to fig. 6, the adjusting device further includes a translation hand wheel 215 fixedly disposed on the translation screw 217, where the translation hand wheel 215 is used to drive the translation screw 217 to rotate; at this time, the field operator can adjust the front-to-back position of the third frame 214 by rotating the translation handwheel 215; in addition, the adjusting device further comprises a locking handle 216 arranged on the second frame 212, wherein the locking handle 216 is used for locking the translation screw 217; after the adjustment of the front and rear positions of the third rack 214 is completed, the locking handle 216 can be controlled to lock the translation screw rod 217, so that the change of the front and rear positions of the third rack 214 caused by the rotation of the translation screw rod 217 is prevented, and the testing precision is prevented from being influenced.

As shown in fig. 6, the left and right sides of the third frame 214 are provided with translation sliding blocks, the second frame 212 is provided with translation sliding rails extending in the front-rear direction, and the translation sliding blocks are in sliding fit with the translation sliding rails; here, the sliding fit of the translation sliding block and the translation sliding rail can ensure that the third rack 214 slides back and forth smoothly relative to the second rack 212.

As shown in fig. 1, a traversing slide rail is arranged on the base, the traversing slide rail extends along the left-right direction, and the first rack 211 is in sliding fit with the traversing slide rail; specifically, the lateral sliding rail is disposed on the fixing frame 300, and in step S100, the first rack 211 can slide left and right relative to the lateral sliding rail, so as to adjust the relative position of the product 400 to be tested and the angle-of-view testing mechanism.

As shown in fig. 1 to 5, the angle testing apparatus further includes a testing jig 100 disposed on the base, the testing jig 100 being used for loading a product 400 to be tested, the testing jig 100 being located at a rear side of the angle testing mechanism.

Specifically, the test fixture 100 includes: a lateral rail 130 provided on the base, the lateral rail 130 extending in the left-right direction; the edge slide block 141 is arranged on the transverse guide rail 130, and the edge slide block 141 is in sliding fit with the transverse guide rail 130; the bearing part is fixedly arranged on the edge sliding block 141 and is used for bearing the product 400 to be tested; locking means for locking or unlocking the relative position of the edge slider 141 and the lateral guide rail 130.

By applying the test fixture 100, the product 400 to be tested can be placed on the supporting part during the test process, and then the field angle test mechanism is controlled to perform the field angle test on the product 400 to be tested; when the dimensional specification of the product 400 to be measured is changed, the locking device can be controlled to unlock the edge slide 141, and the locking device can be controlled to lock the edge slide 141 after the position of the edge slide 141 on the transverse guide 130 is adjusted; the test device can adapt to the test of the products 400 to be tested with different specifications without changing the clamp, and improves the test efficiency.

Wherein the locking means can lock the position of the edge slider 141 in various ways, for example, a plurality of pin holes are provided on the base, and a pin is inserted through the slider and into the pin holes at the corresponding positions; or directly adopts a sliding block with a locking handle, and the position of the sliding block is locked by the locking handle after the sliding block is adjusted to be in place.

As shown in fig. 4, the receiver includes: the upright post 142 is fixedly arranged on the edge sliding block 141; the supporting piece 143 is arranged at the lower side of the upright post 142, and the supporting piece 143 is used for supporting the product 400 to be tested; the supporting member 143 is used for supporting the side surface of the lower edge of the product 400 to be tested, and the up-down position of the supporting member 143 relative to the upright post 142 is adjustable, so as to be convenient for adapting to the products 400 to be tested with different sizes.

As shown in fig. 5, the supporting part further includes a pressing member 145 disposed on the upper side of the upright post 142, and the pressing member 145 is used for pressing the product 400 to be tested onto the upright post 142; wherein, the bearing portion is disposed at the upper end of the upright post 142, so as to compress the product 400 to be tested on the upright post 142, thereby ensuring the stability of the position of the product 400 to be tested during testing.

Specifically, the test fixture 100 further includes a pressing handle 147 rotatably disposed on the upright post 142, where the pressing member 145 is movably connected to the upright post 142, and the pressing handle 147 is used to drive the pressing member 145 to press the product 400 to be tested onto the upright post 142 or to release the pressing; as shown in fig. 5, a pressing crank 144 is rotatably connected with the upright post 142, a pressing member 145 is provided at the end of the pressing crank 144, and a pressing handle 147 is connected with the pressing crank 144 through a pressing connecting rod 146; at this time, the pressing member 145 may press or release the product 400 to be measured on the column 142 by moving the pressing handle 147.

As shown in fig. 2, there are a plurality of edge sliders 141, and a support portion is fixedly provided on each edge slider 141; specifically, there are two edge sliders 141, and two supporting portions respectively support the product 400 to be tested on the left and right sides of the product 400 to be tested, so as to ensure the stable position of the product 400 to be tested.

As shown in fig. 2 and 3, the test fixture 100 further includes a first slider 151 disposed on the transverse rail 130, where the first slider 151 is slidably matched with the transverse rail 130, and a first supporting bracket 152 is disposed at an upper end of the first slider 151, and the first supporting bracket 152 is used for supporting the product 400 to be tested; here, the first supporting bracket 152 and the first slider 151 are located between the two edge sliders 141, and are used for supporting the middle position of the product 400 to be tested, so as to reduce the stress on two sides of the product 400 to be tested; correspondingly, the locking device can also lock or unlock the relative position of the first slider 151 and the transverse guide 130

As shown in fig. 4, the first supporting bracket 152 includes a supporting portion and a limiting portion, the supporting portion is disposed above the first slider 151, the supporting portion is used for supporting the product 400 to be tested, the limiting portion is disposed at the front side of the supporting portion, and the limiting portion is used for providing limiting for the product 400 to be tested; specifically, the fiber portion is disposed at the front side of the product 400 to be tested, and is used for providing a limit for the product 400 to be tested in the front-back direction, and the supporting portion is used for supporting the product 400 to be tested.

As shown in fig. 2, there are a plurality of first sliding blocks 151, and a first supporting bracket 152 is disposed on each first sliding block 151.

As shown in fig. 2 and 3, the test fixture 100 further includes a second slider 161 disposed on the transverse rail 130, and an illuminometer 162 is disposed on the second slider 161; wherein illuminometer 162 is used to measure parameters of the signal emitted by test element 227.

As shown in fig. 2, a button assembly 120 is also provided on the cabinet 110 for controlling the operation of the entire test apparatus.

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 (100), comprising:

a base;

a lateral rail (130) provided on the base, the lateral rail (130) extending in the left-right direction;

an edge slide block (141) arranged on the transverse guide rail (130), wherein the edge slide block (141) is in sliding fit with the transverse guide rail (130);

the bearing part is fixedly arranged on the edge sliding block (141) and is used for bearing a product (400) to be tested;

and the locking device is used for locking the relative position of the edge sliding block (141) and the transverse guide rail (130) or unlocking.

2. The test fixture (100) of claim 1, wherein the cradle comprises: the upright post (142) is fixedly arranged on the edge sliding block (141);

the supporting piece (143) is arranged on the lower side of the upright post (142), and the supporting piece (143) is used for supporting the product (400) to be detected.

3. The test fixture (100) of claim 2, wherein the support further comprises a hold-down member (145) disposed on an upper side of the upright (142), the hold-down member (145) being configured to hold the product (400) under test against the upright (142).

4. The test fixture (100) of claim 3, further comprising a pressing handle (147) rotatably disposed on the upright (142), the pressing member (145) being movably connected to the upright (142), the pressing handle (147) being configured to drive the pressing member (145) to press or release the product (400) to be tested against the upright (142).

5. The test fixture (100) of claim 1, wherein there are a plurality of edge sliders (141), each edge slider (141) having a support fixedly disposed thereon.

6. The test fixture (100) according to claim 1, further comprising a first slider (151) disposed on the transverse rail (130), the first slider (151) being slidably engaged with the transverse rail (130), a first support bracket (152) being disposed at an upper end of the first slider (151), the first support bracket (152) being configured to support the product (400) under test.

7. The test fixture (100) of claim 6, wherein the first support bracket (152) includes a support portion and a limit portion, the support portion being disposed above the first slider (151), the support portion being configured to support the product (400) under test, the limit portion being disposed on a front side of the support portion, the limit portion being configured to provide a limit for the product (400) under test.

8. The test fixture (100) of claim 6, wherein there are a plurality of said first sliders (151), each of said first sliders (151) having said first support bracket (152) disposed thereon.

9. The test fixture (100) of claim 1, further comprising a second slider (161) disposed on the transverse rail (130), the second slider (161) having an illuminometer (162) disposed thereon.

10. A test device, comprising:

a base;

the visual angle testing mechanism is arranged on the base and is used for testing the visual angle of a product (400) to be tested;

the test fixture (100) is arranged on the base, the test fixture (100) is positioned at the rear side of the view angle test mechanism, and the test fixture (100) is used for clamping the product (400) to be tested; the test fixture (100) is a test fixture (100) according to any one of claims 1 to 9.