CN220271381U - Test fixture, voice coil motor frequency response test mechanism and test system thereof - Google Patents

Abstract

The application belongs to the technical field of test systems, and particularly relates to a test fixture, a voice coil motor frequency response test mechanism and a test system thereof, wherein the test fixture comprises a carrier, a positioning and tightening assembly and a tightening and releasing assembly, a first positioning groove for placing a workpiece to be tested is formed in the carrier, and an open notch for the workpiece to be tested to pass through is formed in the groove wall of the first positioning groove; the positioning and propping assembly is used for propping a workpiece to be tested on the carrier in the first positioning groove, and an open notch through which the workpiece to be tested cannot pass is arranged in a propping state of the positioning and propping assembly; the abutting relieving component is used for relieving the abutting state of the positioning abutting component on the workpiece to be tested, so that the workpiece to be tested can pass through the open notch. The application provides a test fixture, voice coil motor frequency response testing mechanism and test system thereof can improve the location accuracy to the work piece that awaits measuring, improves efficiency and the quality of voice coil motor frequency response test.

Description

Test fixture, voice coil motor frequency response test mechanism and test system thereof

Technical Field

The application belongs to the technical field of test systems, and more particularly relates to a test fixture, a voice coil motor frequency response test mechanism and a test system thereof.

Background

The camera module of the mobile phone sold in the market at present adopts a voice coil motor, a product lens is suspended in a working environment such as the voice coil motor, an image is projected to a sensor by object imaging, and a photo is transmitted into the mobile phone for storage through an IR CUT (dual optical filter switcher) and a peripheral circuit PCB board to be transmitted out of a connector during imaging.

In order to improve the quality of shipment, the voice coil motor needs to be subjected to frequency response test before shipment so as to ensure the frequency response consistency of the voice coil motor. Aiming at the problem, a voice coil motor frequency response testing system is developed in the market, automation of voice coil motor frequency response testing is achieved, a tested motor is placed in a positioning groove of a testing carrier through a manipulator in the testing process, then a lens is installed on the motor through a lens taking and placing assembly, performance testing is conducted on the motor through a detecting assembly, after the testing is finished, the lens is taken down through the lens taking and placing assembly, the motor is taken down through the manipulator, a qualified motor is placed on a qualified conveying line according to a testing result, and a disqualified motor is placed on a disqualified conveying line.

However, the existing test fixture for placing the motor to be tested is only provided with a groove matched with the shape of the motor, so that the motor to be tested is inconvenient to take and place, and the positioning accuracy of the motor to be tested is poor.

Disclosure of Invention

An aim of the embodiment of the application is to provide a test fixture, voice coil motor frequency response test mechanism and test system thereof, can improve the location accuracy to the work piece that awaits measuring, improves efficiency and the quality of voice coil motor frequency response test.

A first aspect of embodiments of the present application provides a test fixture, including:

the device comprises a carrier, wherein a first positioning groove for placing a workpiece to be tested is formed in the carrier, and an open notch for the workpiece to be tested to pass through is formed in the groove wall of the first positioning groove;

the positioning and propping assembly is used for propping a workpiece to be tested on the carrier in the first positioning groove, and an open notch through which the workpiece to be tested cannot pass is formed when the positioning and propping assembly is in a propping state;

the abutting relieving assembly is used for relieving the abutting state of the positioning abutting assembly on the workpiece to be tested so that the workpiece to be tested can pass through the open notch.

In one embodiment of the first aspect, the positioning and tightening assembly includes an elastic member and a tightening block, one end of the elastic member is fixed with the carrier or with an external structure, the other end of the elastic member is fixed with the tightening block, the tightening block is slidably disposed on a side of the carrier where the open notch is disposed, and the elastic member is located at the open notch and is tightened with the workpiece to be measured.

In one embodiment of the first aspect, the abutting block is provided with an abutting surface and a limiting surface, when the abutting block moves towards the direction close to the first positioning groove, the abutting surface is in contact with the side surface of the workpiece to be tested, and when the abutting block moves to be located in the open notch, the limiting surface is attached to the side surface of the workpiece to be tested.

In one embodiment of the first aspect, the tightening release assembly includes a driving member, an output end of the driving member may contact the tightening block, and the driving member is configured to push the tightening block away from the open notch, so that the open notch may allow the workpiece to be tested to pass through.

In one embodiment of the first aspect, the test fixture comprises a guiding assembly fixed with the carrier or with an external structure, the guiding assembly being used for guiding the movement of the abutment block.

In a second aspect, there is provided a voice coil motor frequency response testing mechanism comprising:

the test workbench is provided with a detection assembly;

the test disc is rotatably arranged on the test workbench, and the detection assembly is positioned at the periphery of the test disc;

a lens for assembly testing with a motor;

the test jig is arranged on the test disc, the test jig is the test jig described above, and the first positioning groove on the test jig is used for placing a motor;

the lens taking and placing assembly is used for loading the lens into the first positioning groove or taking out the lens positioned in the first positioning groove.

In one embodiment of the second aspect, the carrier is provided with a second positioning groove for placing the lens, and the lens picking and placing component moves the lens between the second positioning groove and the first positioning groove of the carrier which are identical in location.

In one embodiment of the second aspect, the test bench is a counterweight bench.

In a third aspect, a voice coil motor frequency response testing system includes:

the testing mechanism is the voice coil motor frequency response testing mechanism;

go up unloading mechanism, go up unloading mechanism includes triaxial manipulator, article transfer chain that awaits measuring, conforming article transfer chain and nonconforming article transfer chain, triaxial manipulator be used for with motor on the article transfer chain that awaits measuring picks up to testing mechanism, and be used for with motor on the testing mechanism picks up to conforming article transfer chain or nonconforming article transfer chain.

In one embodiment of the third aspect, the loading and unloading mechanism further includes a loading and unloading workbench, and the loading and unloading workbench and the testing workbench are arranged at intervals.

The application provides a test fixture, voice coil motor frequency response testing mechanism and test system's beneficial effect lies in:

compared with the prior art, the test fixture has the advantages that the open notch capable of allowing the workpiece to be tested to pass through at will is formed in the groove wall of the first positioning groove, so that the workpiece to be tested can be conveniently taken from the open notch to be placed in the first positioning groove, the workpiece to be tested can be tightly abutted in the first positioning groove by the positioning abutting component, the workpiece to be tested is prevented from shifting in the process of performing frequency response test on the workpiece to be tested, the positioning precision of the workpiece to be tested is improved, the abutting state of the positioning abutting component to the workpiece to be tested is relieved by the abutting relieving component, and the workpiece to be tested can pass through the open notch freely;

according to the voice coil motor frequency response testing mechanism, the testing jig provided by the application is adopted, the motor is positioned by utilizing the first positioning groove of the testing jig, the positioning accuracy of the motor to be tested is improved, the convenience of taking and placing the motor is improved, and further the testing quality and testing efficiency of the voice coil motor frequency response testing mechanism are improved;

the voice coil motor frequency response testing system adopts the voice coil motor frequency response testing mechanism provided by the application, improves the positioning accuracy of the motor to be tested and the convenience of taking and placing the motor, and further improves the testing quality and testing efficiency of the voice coil motor frequency response testing system.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required for the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a voice coil motor frequency response testing system according to an embodiment of the present application;

fig. 2 is a schematic top view of a voice coil motor frequency response testing system according to an embodiment of the present application;

fig. 3 is a schematic perspective view of a voice coil motor frequency response testing mechanism according to an embodiment of the present application;

fig. 4 is a schematic perspective view of a test fixture according to an embodiment of the present application;

fig. 5 is a schematic structural diagram showing a tightening block in a test fixture according to an embodiment of the present application.

Wherein, each reference sign in the figure:

1-a testing mechanism; 10-a test workbench; 11-test tray; 12-lens; 13-testing the jig; 14-a lens taking and placing assembly;

100-detecting components; 101-a shock insulation pad; 102-loading and unloading stations; 103-X direction optical anti-shake test station; 104-Y direction optical anti-shake test station; 105-a burning test station;

130-a carrier; 131-positioning the abutting assembly; 132-a jam release assembly; 133-a guide assembly; 1300-a first detent; 1301-a second positioning groove; 1302-open notch; 1310-an elastic member; 1311-a tightening block; 1312-pushing surface; 1313—a stop surface; 1314-first stage; 1315-second stage; 1320—a driver; 1321-connecting plates; 1322-push rod; 1330-slide rail; 1331-a slider;

140-mounting frame; 141-a horizontal slip assembly; 142-lifting and sliding assembly; 143-a lens suction nozzle;

2-feeding and discharging mechanisms; 20-a triaxial manipulator; 21-a to-be-tested product conveying line; 22-a qualified product conveying line; 23-a non-conforming product conveying line; 24-loading and unloading work table; 25-stacking trays;

201-X axis guide rail module; 202-Y axis guide rail module; 203-Z axis guide rail module;

3-workpiece to be measured.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The test fixture provided by the embodiment of the application can be suitable for positioning the workpiece 3 to be tested in multiple scenes, and the voice coil motor is taken as the workpiece 3 to be tested for example for detailed description. Referring to fig. 4 and 5, the test fixture 13 includes a carrier 130, a positioning and tightening assembly 131, and a tightening and loosening assembly 132. The carrier 130 is provided with a first positioning groove 1300 for positioning and placing the workpiece 3 to be measured, and the groove wall of the first positioning groove 1300 is provided with an open notch 1302 for the workpiece 3 to be measured to pass through, that is, even if the workpiece 3 to be measured is in a skewed state, the workpiece can pass through the open notch 1302 and be placed into the first positioning groove 1300 or be taken out from the first positioning groove 1300. The positioning and propping assembly 131 is used for propping the workpiece 3 to be tested on the carrier 130 in the first positioning groove 1300, and the workpiece 3 to be tested cannot pass through the open notch 1302 when the positioning and propping assembly 131 is in a propping state, so that the workpiece 3 to be tested is positioned in the first positioning groove 1300, and the accuracy of frequency response test is not easily affected due to displacement. The abutting relieving component 132 is used for relieving the abutting state of the abutting component 131 on the workpiece 3 to be tested, so that the workpiece 3 to be tested can pass through the open notch 1302, and the convenience of taking and placing the workpiece 3 to be tested in the first positioning groove 1300 is improved.

Compared with the prior art, the test fixture 13 provided by the application has the advantages that the workpiece 3 to be tested is abutted in the first positioning groove 1300 by the positioning abutting component 131, so that the workpiece 3 to be tested is not easy to shift, and the positioning accuracy of the workpiece 3 to be tested is improved; an open notch 1302 through which the workpiece 3 to be measured can pass at will is formed in the groove wall of the first positioning groove 1300, and the abutting state of the abutting component 131 to the workpiece 3 to be measured is relieved by the abutting relieving component 132, so that the workpiece 3 to be measured can be freely taken and placed from the first positioning groove 1300 through the open notch 1302, and the convenience of taking and placing the workpiece 3 to be measured in the first positioning groove 1300 is improved.

In another embodiment of the present application, referring to fig. 4 and 5, the positioning and fastening assembly 131 includes an elastic member 1310 and a fastening block 1311, wherein one end of the elastic member 1310 is fixed to the carrier 130 or to an external structure, and the other end of the elastic member 1310 is fixed to the fastening block 1311. Specifically, the elastic member 1310 may specifically employ a tension spring. The abutting block 1311 is slidably disposed on the side of the carrier 130 provided with the open notch 1302, and the abutting block 1311 is under the action of the elastic member 1310, so that the abutting block 1311 can move to be located at the open notch 1302 and abut against the workpiece 3 to be measured.

Further, one end of the elastic member 1310, which is fixed to the carrier 130 or the external structure, is set as a fixed end, one end of the elastic member 1310, which is fixed to the abutting block 1311, is set as a movable end, and the first positioning groove 1300 is located between the fixed end and the movable end, so that the abutting block 1311 can be close to the first positioning groove 1300 under the action of the elastic member 1310, and then the workpiece 3 to be measured in the first positioning groove 1300 is abutted.

In another embodiment of the present application, please continue to refer to fig. 4 and 5, the abutting block 1311 has an abutting surface 1312 and a limiting surface 1313, when the abutting block 1311 moves towards the direction approaching the first positioning groove 1300, the abutting surface 1312 can contact with the side surface of the workpiece 3 to be measured, when the abutting block 1311 moves to be located in the open notch 1302, the limiting surface 1313 is attached to the side surface of the workpiece 3 to be measured, and the limiting surface 1313 is matched with the side groove wall of the first positioning groove 1300 to limit the position of the workpiece 3 to be measured.

Specifically, the pushing surface 1312 may be a chamfer surface formed by chamfering the corner of the abutting block 1311 near the first positioning groove 1300, or a wedge surface formed by cutting the corner of the abutting block 1311 near the first positioning groove 1300, and the damage to the workpiece 3 to be tested can be reduced and the smoothness of the pushing process of the workpiece 3 to be tested can be improved by using the chamfer surface or the wedge surface to contact with the corner of the workpiece 3 to be tested.

In another embodiment of the present application, please continue to refer to fig. 4 and 5, the test fixture 13 includes a guiding component 133, the guiding component 133 is fixed to the carrier 130 or an external structure, and the guiding component 133 is used for guiding the movement of the tightening block 1311, so as to ensure that the tightening block 1311 can accurately move to the open gap 1302.

In another embodiment of the present application, please continue to refer to fig. 4 and 5, the guiding assembly 133 includes a sliding rail 1330 and a sliding block 1331, the sliding rail 1330 is fixedly disposed relative to the carrier 130, the length direction of the sliding rail 1330 is the same as the extending direction of the elastic member 1310, the sliding block 1331 is slidably connected with the sliding rail 1330, and the abutting block 1311 is fixed on the sliding block 1331, so that the sliding of the sliding block 1331 on the sliding rail 1330 is utilized to realize the directional sliding of the abutting block 1311.

In another embodiment of the present application, with continued reference to fig. 4 and 5, the first positioning groove 1300 is opened at the upper end and is half-opened at the side to form the aforementioned open notch 1302. Taking the motor as the workpiece 3 to be measured as an example, when the shape of the motor can be regarded as a rectangle, the groove wall corresponding to the first positioning groove 1300 is a right-angle groove wall, and can respectively prop against two adjacent side surfaces of the workpiece 3 to be measured. The abutting block 1311 comprises a first segment 1314 and a second segment 1315 which are connected with each other, the connection part of the first segment 1314 and the second segment 1315 forms the limiting surface 1313, and when the abutting block 1311 is located at the open notch 1302, the limiting surface 1313 and the groove wall of the first positioning groove 1300 are located at opposite angles. Correspondingly, the extending and contracting direction of the elastic member 1310 and the length direction of the sliding rail 1330 are both the connecting line direction of the limiting surface 1313 and the groove wall of the first positioning groove 1300, so that under the action of the elastic member 1310, the abutting block 1311 can abut against the corner of the workpiece 3 to be measured, which is close to the open notch 1302, and the abutting block 1311 and the groove wall of the first positioning groove 1300 respectively abut against the opposite corners of the workpiece 3 to be measured, so that the position of the workpiece 3 to be measured can be limited once.

In another embodiment of the present application, referring to fig. 4, the tightening and loosening assembly 132 includes a driving member 1320, and in particular, the driving member 1320 is a cylinder. The output end of the driving member 1320 can contact the abutting block 1311, and the driving member 1320 is used for pushing the abutting block 1311 away from the placing notch 1302, so that the opening notch 1302 can allow the workpiece 3 to be tested to pass through. Under normal conditions, the abutting block 1311 abuts against the workpiece 3 to be measured under the action of the elastic member 1310; when the workpiece 3 to be measured needs to be placed in or taken out from the carrier 130, the driving member 1320 pushes the abutting block 1311 away to leave the opening gap 1302, so as to facilitate the taking and placing of the workpiece 3 to be measured from the first positioning slot 1300.

The application also provides a voice coil motor frequency response testing mechanism, please refer to fig. 3 and 4, which includes a testing workbench 10, a testing disc 11, a lens 12, a testing jig 13 and a lens 12 pick-and-place assembly. The test workbench 10 is provided with a detection assembly 100, and the detection assembly 100 is used for performing frequency response test on the voice coil motor. The test disc 11 is rotatably installed on the test workbench 10, the detection assembly 100 is located at the periphery of the test disc 11, the test fixture 13 is installed on the test disc 11, the first positioning groove 1300 on the test fixture 13 is used for placing a motor, the lens 12 is used for assembling a test with the motor, and the lens 12 taking-out and placing assembly is used for loading the lens 12 into the first positioning groove 1300 or taking out the lens 12 located in the first positioning groove 1300. By rotating the test disc 11, the motor equipped with the lens 12 is moved to the detection assembly 100 for frequency response testing. The test fixture 13 is the test fixture 13 described above.

The voice coil motor frequency response testing mechanism provided by the application adopts the testing jig 13 provided by the application, and the motor is positioned by utilizing the first positioning groove 1300 of the testing jig 13, so that the positioning accuracy of the motor to be tested is improved, the convenience of taking and placing the motor is improved, and the testing quality and testing efficiency of the voice coil motor frequency response testing mechanism are further improved.

In another embodiment of the present application, referring to fig. 3, the test bench 10 is a counterweight table, which increases the weight of the bottom, reduces the vibration of the test bench 10, and further improves the test accuracy. Further, the bottom of the test workbench 10 is provided with the shock insulation pad 101, so that the shock insulation effect is further improved.

In another embodiment of the present application, please continue to refer to fig. 3, four sides of the test table 10 are respectively provided with a loading and unloading station 102, an X-direction optical anti-shake test station 103, a Y-direction optical anti-shake test station 104 and a burning test station 105, and the loading and unloading station 102, the X-direction optical anti-shake test station 103, the Y-direction optical anti-shake test station 104 and the burning test station 105 are distributed around the test disc 11, wherein the detection assemblies 100 are disposed on the X-direction optical anti-shake test station 103, the Y-direction optical anti-shake test station 104 and the burning test station 105. The loading and unloading station 102 is used for carrying out motor taking and placing and lens 12 taking and placing operations, the X-direction optical anti-shake test station 103 is used for carrying out X-direction optical anti-shake test, the Y-direction optical anti-shake test station 104 is used for carrying out Y-direction optical anti-shake test, and the burning test station 105 is used for carrying out register burning detection.

The detection assembly 100 employs a prior art detection assembly 100, such as the probe assembly disclosed in chinese patent application No. 201510346649.3. Specifically, the detection assembly 100 includes a plurality of probes, a probe slider, an optical axis supporting block and a guide rod, the plurality of probes are fixed on the probe slider and face the test fixture 13, the guide rod is fixedly connected with the optical axis supporting block, the probe slider is slidably sleeved on the guide rod, the plurality of probes are electrically connected with a circuit control box, and the circuit control box is electrically connected with the controller.

In another embodiment of the present application, referring to fig. 3 and 4, a plurality of carriers 130 are disposed on the test board 11, so that a plurality of motors can be tested in frequency response at the same time, and the testing efficiency is improved. In the present embodiment, four carriers 130 are respectively disposed on four sides of the test tray 11, and sixteen carriers 130 are disposed on the test tray 11.

With reference to fig. 3 and 4, in the test fixture 13, the number of the positioning and tightening assemblies 131 is set in one-to-one correspondence with the number of the carriers 130, that is, each carrier 130 is correspondingly provided with a set of positioning and tightening assemblies 131 for tightening and positioning the motor on the carrier 130. Because the tightening release assembly 132 is only needed when the motor is taken and placed, only one set of tightening release assemblies 132 may be provided, and the set of tightening release assemblies 132 only acts on the carriers 130 located at the loading and unloading station 102. Specifically, the output end of the driving member 1320 is connected to a connecting plate 1321, four push rods 1322 are disposed on the connecting plate 1321, and under the action of the driving member 1320, the four push rods 1322 respectively abut against the abutting blocks 1311 of the four positioning abutting assemblies 131, and push the corresponding abutting blocks 1311 to be separated from the open notch 1302.

In another embodiment of the present application, referring to fig. 3 and 4, a second positioning groove 1301 for placing the lens 12 is formed on the carrier 130, and the lens 12 picking and placing assembly moves the lens between the first positioning groove 1300 and the second positioning groove 1301 of the same carrier 130. When the lens 12 is not needed, the lens 12 is fixedly placed in the second positioning groove 1301, and when the lens 12 is needed, the lens 12 is only required to be conveyed into the first positioning groove 1300 of the same carrier 130 from the second positioning groove 1301, so that the assembly error rate between the lens 12 and the motor can be reduced, and the accuracy of the motor frequency response test is further improved.

In another embodiment of the present application, please continue to refer to fig. 3 and 4, the lens 12 pick-and-place assembly includes a mounting frame 140, a horizontal sliding assembly 141, a lifting sliding assembly 142, a nozzle mounting plate (not shown), and a lens nozzle 143. The mounting frame 140 is erected on the test workbench 10, the mounting frame 140 comprises two vertical plates which are arranged in parallel and a mounting cross beam with two ends respectively overlapped on the two vertical plates, and the lifting sliding component 142, the suction nozzle mounting plate and the lens suction nozzle 143 are arranged on the mounting cross beam. The horizontal sliding component 141 is disposed on the vertical plate, and is configured to enable the mounting beam to move along the connection direction of the first positioning slot 1300 and the second positioning slot 1301 on the same carrier 130, so that the lens suction nozzle 143 can be located right above the loading and unloading station 102. The lens suction nozzle 143 is used for sucking the lens 12 in the test fixture 13, the lens suction nozzle 143 is arranged on a suction nozzle mounting plate, the suction nozzle mounting plate is arranged on a lifting sliding component 142, and the lifting sliding component 142 drives the suction nozzle mounting plate to lift and further drives the lens suction nozzle 143 to lift, so that the lens 12 is taken and put.

In this embodiment, four sets of test jigs 13 are disposed on each side of the test board 11, and the number of the lens suction nozzles 143 is four, so that the four lens suction nozzles 143 can simultaneously pick and place the lenses 12 on the four sets of test jigs 13.

Wherein, the horizontal sliding component 141 and the lifting sliding component 142 are both sliding components in the prior art. Specifically, the linear sliding structure can be realized by adopting a screw rod module, a belt module or a motor module and the like.

Referring to fig. 1 to 2, the present application further provides a voice coil motor frequency response testing system, which includes a testing mechanism 1 and a loading and unloading mechanism 2. The test mechanism 1 is a voice coil motor frequency response test mechanism as described above. The loading and unloading mechanism 2 comprises a three-axis manipulator 20, a to-be-tested product conveying line 21, a qualified product conveying line 22 and a non-qualified product conveying line 23, wherein the three-axis manipulator 20 is used for picking up a motor on the to-be-tested product conveying line 21 to the testing mechanism 1 and picking up the motor on the testing mechanism 1 to the qualified product conveying line 22 or the non-qualified product conveying line 23.

The voice coil motor frequency response test system provided by the application adopts the voice coil motor frequency response test mechanism 1 provided by the application, so that the positioning accuracy of the motor to be tested and the convenience of taking and placing the motor are improved, and the test quality and the test efficiency of the voice coil motor frequency response test system are further improved.

In another embodiment of the present application, please continue to refer to fig. 1-2, the loading and unloading mechanism 2 further includes a loading and unloading workbench 24, and the loading and unloading workbench 24 and the testing workbench 10 are arranged at intervals, so that the mutual influence between the loading and unloading mechanism 2 and the testing mechanism can be avoided during the operation process, and the influence of the loading and unloading mechanism 2 on the vibration of the testing mechanism is reduced.

In another embodiment of the present application, please continue to refer to fig. 1-2, the three-axis manipulator 20 adopts the three-axis manipulator 20 in the prior art, specifically, the three-axis manipulator 20 includes a motor suction nozzle (not shown in the figure), an X-axis guide rail module 201, a Y-axis guide rail module 202 and a Z-axis guide rail module 203, the X-axis guide rail module 201 is provided with an X-axis slider, the Y-axis guide rail module 202 is disposed on the X-axis slider, the Y-axis guide rail module 202 is provided with a Y-axis slider, the Z-axis guide rail module 203 is disposed on the Y-axis slider, the Z-axis guide rail module 203 is provided with a Z-axis slider, and the motor suction nozzle is disposed on the Z-axis slider. The working process of the triaxial manipulator 20 is as follows: under the action of the X-axis guide rail module 201, the X-axis sliding block slides along the X-axis direction, so that displacement of the motor suction nozzle in the X-axis direction is realized; under the action of the Y-axis guide rail module 202, the Y-axis sliding block slides along the Y-axis direction, so that displacement of the motor suction nozzle in the Y-axis direction is realized; under the action of the Z-axis guide rail module 203, the Z-axis sliding block slides along the Z-axis direction, so that displacement in the Z-axis direction is realized for the motor suction nozzle, and the motor suction nozzle sucks the motor to the target position. Correspondingly, the number of the motor suction nozzles is four, and the four motors on the test disc 11 can be taken and placed at one time.

In another embodiment of the present application, the conveying line 21 for the to-be-tested product, the conveying line 22 for the qualified product and the conveying line 23 for the non-qualified product all adopt conveying lines in the prior art, two ends on each conveying line are respectively provided with a feeding end and a discharging end, the conveying lines are correspondingly provided with stacking plates 25, and the motors are placed on the stacking plates 25 for conveying.

The foregoing description of the preferred embodiments of the present application is not intended to be limiting, but is intended to cover any and all modifications, equivalents, and alternatives falling within the spirit and principles of the present application.

Claims (10)

1. A test fixture, its characterized in that includes:

the device comprises a carrier, wherein a first positioning groove for placing a workpiece to be tested is formed in the carrier, and an open notch for the workpiece to be tested to pass through is formed in the groove wall of the first positioning groove;

the positioning and propping assembly is used for propping a workpiece to be tested on the carrier in the first positioning groove, and an open notch through which the workpiece to be tested cannot pass is formed when the positioning and propping assembly is in a propping state;

the abutting relieving assembly is used for relieving the abutting state of the positioning abutting assembly on the workpiece to be tested so that the workpiece to be tested can pass through the open notch.

2. The test fixture of claim 1, wherein the positioning and tightening assembly comprises an elastic member and a tightening block, one end of the elastic member is fixed with the carrier or with an external structure, the other end of the elastic member is fixed with the tightening block, the tightening block is slidably arranged on one side of the carrier provided with the open notch, and the elastic member enables the tightening block to be positioned at the open notch and tightened with the workpiece to be tested.

3. The test fixture of claim 2, wherein the tightening block has a pushing surface and a limiting surface, the pushing surface contacts a side surface of the workpiece to be tested when the tightening block moves in a direction approaching the first positioning groove, and the limiting surface is attached to the side surface of the workpiece to be tested when the tightening block moves to be located in the open notch.

4. A test fixture as claimed in claim 2 or claim 3, wherein the tightening release assembly comprises a driving member, an output end of the driving member being capable of contacting the tightening block, the driving member being adapted to push the tightening block away from the open gap so that the open gap is accessible for a workpiece to be tested.

5. A test fixture as claimed in claim 2 or claim 3, wherein the test fixture comprises a guide assembly secured to the carrier or to an external structure, the guide assembly being adapted to guide movement of the abutment.

6. A voice coil motor frequency response testing mechanism, comprising:

the test workbench is provided with a detection assembly;

the test disc is rotatably arranged on the test workbench, and the detection assembly is positioned at the periphery of the test disc;

a lens for assembly testing with a motor;

a test jig mounted on the test disc, the test jig being the test jig of any one of claims 1-5, the first positioning groove on the test jig being for placement of a motor;

the lens taking and placing assembly is used for loading the lens into the first positioning groove or taking out the lens positioned in the first positioning groove.

7. The voice coil motor frequency response testing mechanism of claim 6, wherein the carrier is provided with a second positioning slot for placing a lens, and the lens pick-and-place assembly moves the lens between the second positioning slot and the first positioning slot of the same carrier.

8. A voice coil motor frequency response testing mechanism according to claim 6 or 7, wherein the testing table is a counterweight table.

9. A voice coil motor frequency response test system, comprising:

a test mechanism which is the voice coil motor frequency response test mechanism of any one of claims 6-8;

go up unloading mechanism, go up unloading mechanism includes triaxial manipulator, article transfer chain that awaits measuring, conforming article transfer chain and nonconforming article transfer chain, triaxial manipulator be used for with motor on the article transfer chain that awaits measuring picks up to testing mechanism, and be used for with motor on the testing mechanism picks up to conforming article transfer chain or nonconforming article transfer chain.

10. The voice coil motor frequency response testing system of claim 9, wherein the loading and unloading mechanism further comprises a loading and unloading workbench, and the loading and unloading workbench is arranged at a distance from the testing workbench.