Laser ranging adjustment module used for micro motor telescoping test

Abstract

The invention relates to a laser ranging adjusting module used for a micro motor telescoping test. The laser ranging adjusting module comprises a plane adjusting module, an inclination angle adjusting module and a support module. The inclination angle adjusting module is installed on the plane adjusting module through the support module and used for adjusting the inclination angle of the laser ranging module. A Y-axis spring and a Y-axis micrometer are connected between a Y-axis bottom plate arranged on the plane adjusting module and the bottom carrier, and the Y-axis spring enables the Y-axis bottom plate to slide from one end to the other end in the Y-axis direction; the Y-axis micrometer enables the Y-axis bottom plate to slide from the other end to one end along the Y-axis direction; an X-axis spring and an X-axis micrometer are connected between an X-axis bottom plate and a Y-axis bottom plate arranged on the plane adjusting module, and the X-axis spring enables the X-axis bottom plate to slide from one end to the other end in the X-axis direction. The Y-axis micrometer enables the X-axis bottom plate to slide from the other end to one end in the X-axis direction. The laser ranging module is compact in structure and easy to align and calibrate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of micro-mechanical testing equipment, and particularly relates to a laser ranging adjustment module for micro motor extension testing. BACKGROUND

[0002] With the popularization of the demand for automatic focusing and optical zoom functions of micro cameras in smart phones, security monitoring devices and the like, the production of camera modules with built-in micro motors has increased rapidly. In the production process, testing the performance of the micro motor-driven lens assembly of the micro camera, such as extension stroke accuracy, repeatability, response speed, service life and noise, is a key link to ensure the quality of the module.

[0003] At present, the common testing method is to fix the camera module to be tested by using a special fixture, to align the lens carrier or lens barrel by using a high-precision displacement sensor (such as a laser displacement sensor), to non-contact measure the extension displacement, and to apply a driving signal to the motor and receive the feedback signal of the internal Hall sensor through a test interface board. The prior art scheme has the following significant problems: The alignment accuracy of the high-precision displacement sensor and the small lens barrel (usually only a few millimeters in diameter) is extremely high, and a micron-level installation deviation will cause the measurement data to be distorted; a large amount of time is consumed for high-precision displacement sensor alignment and adjustment work before each replacement of the module to be tested or batch testing, and the testing efficiency is low; the high-precision displacement sensor positioning mechanism is often designed for a specific model of module, and the sensor module needs to be replaced when the model is switched, which is not flexible, and the high-precision sensor and the matching precision mechanical structure result in high overall module cost. SUMMARY

[0004] Therefore, the present application provides a laser ranging adjustment module for micro motor extension testing, which is compact in structure, easy to align and calibrate, highly versatile and low in cost. The application is achieved by the following technical scheme: a laser ranging adjustment module for micro motor extension test, the laser ranging adjustment module comprises a plane adjustment module, an inclination adjustment module and a support module; the inclination adjustment module is installed on the plane adjustment module through the support module, the inclination adjustment module is connected with the laser ranging module and is used for adjusting the inclination of the laser ranging module; the plane adjustment module comprises an X-axis bottom plate, a Y-axis bottom plate, a Y-axis micrometer, an X-axis micrometer, an X-axis spring and a Y-axis spring; the Y-axis bottom plate is slidably connected with a bottom carrier in the Y-axis direction, the X-axis bottom plate is slidably connected with the Y-axis bottom plate in the X-axis direction; the Y-axis spring and the Y-axis micrometer are connected between the Y-axis bottom plate and the bottom carrier, the Y-axis spring enables the Y-axis bottom plate to slide in the Y-axis direction from one end to the other end; the Y-axis micrometer enables the Y-axis bottom plate to slide in the Y-axis direction from the other end to the one end, thereby achieving the position adjustment of the Y-axis bottom plate in the Y-axis direction; the X-axis spring and the X-axis micrometer are connected between the X-axis bottom plate and the Y-axis bottom plate, the X-axis spring enables the X-axis bottom plate to slide in the X-axis direction from one end to the other end; the Y-axis micrometer enables the X-axis bottom plate to slide in the X-axis direction from the other end to the one end, thereby achieving the position adjustment of the X-axis bottom plate in the X-axis direction.

[0005] Further, the inclination adjustment module comprises an X-axis inclination adjustment plate, a Y-axis inclination fixing plate, a Y-axis ball head stop screw and a Y-axis inclination tension spring; the Y-axis inclination fixing plate is fixed on the support module, the X-axis inclination adjustment plate is connected with the Y-axis inclination fixing plate through the Y-axis inclination tension spring, the Y-axis inclination tension spring is telescopic along the Y-axis, and the upper end of the X-axis inclination adjustment plate is rotationally connected with the upper end of the Y-axis inclination fixing plate; the Y-axis adjustment ball head stop screw is threadedly connected with the lower end of the Y-axis inclination fixing plate in the Y-axis direction, the lower end of the X-axis inclination adjustment plate is moved in the Y-axis direction through the Y-axis adjustment ball head stop screw, and the inclination adjustment of the X-axis inclination adjustment plate in the Y-axis direction is realized under the joint action of the Y-axis inclination tension spring.

[0006] Further, the inclination adjustment module further comprises an adjustment block, an X-axis inclination adjustment plate, a first bearing, an X-axis ball head stop screw and an X-axis inclination tension spring; the X-axis inclination fixing plate is rotationally connected with the X-axis inclination adjustment plate through the first bearing, the X-axis inclination fixing plate and the X-axis inclination adjustment plate are connected through the X-axis inclination tension spring, the X-axis ball head stop screw is arranged on the upper end of the X-axis inclination adjustment plate in the X-axis direction through the adjustment block, the X-axis ball head stop screw is threadedly connected with the adjustment block, the upper end of the X-axis inclination adjustment plate is moved in the X-axis direction through the X-axis ball head stop screw, and the inclination adjustment of the X-axis inclination fixing plate in the X-axis direction is realized under the joint action of the X-axis heavy load tension spring.

[0007] Further, the inclination angle adjusting module further comprises a Z-axis micrometer, a test head fixing plate and a Z-axis heavy load tension spring; the test head fixing plate is in sliding connection with the X-axis inclination angle fixing plate, and the test head fixing plate is used for being connected with the laser ranging module; the Z-axis tension spring is connected between the test head fixing plate and the X-axis inclination angle fixing plate, and the Z-axis tension spring enables the test head fixing plate to slide along the Z-axis direction from one end to the other end; the Z-axis micrometer enables the test head fixing plate to slide along the Z-axis direction from the other end to the one end, so as to realize the height adjustment of the test head fixing plate in the Z-axis direction.

[0008] Further, two locking holes in the X-axis direction are arranged on the upper end of the Y-axis inclination angle fixing plate, the locking holes lock the guide rods, the guide rods pass through the two locking holes respectively, and the passing-through ends are connected with the second bearings arranged on the fixing blocks respectively, the fixing blocks are fixed on the upper end of the X-axis inclination angle adjusting plate, and the fixing blocks drive the X-axis inclination angle adjusting plate to rotate along the Y-axis direction around the guide rods.

[0009] Further, the inclination angle adjusting module further comprises a Z-axis micrometer fixing block and a Z-axis clamping block; the Z-axis micrometer is fixed on the X-axis inclination angle fixing plate through the Z-axis micrometer fixing block, and the Z-axis clamping block limits the Z-axis micrometer to realize the positioning of the test head fixing plate along the Z-axis direction.

[0010] Further, the plane adjusting module further comprises an X-axis micrometer fixing block and an X-axis clamping block; the X-axis micrometer is installed on the Y-axis bottom plate through the X-axis micrometer fixing block, and the X-axis clamping block limits the X-axis micrometer to realize the positioning of the X-axis bottom plate along the X-axis direction.

[0011] Further, the plane adjusting module further comprises a Y-axis clamping block and a Y-axis micrometer fixing block; the Y-axis micrometer is installed on the bottom carrier through the Y-axis micrometer fixing block, and the Y-axis clamping block limits the Y-axis micrometer to realize the positioning of the Y-axis bottom plate along the Z-axis direction.

[0012] Compared with the prior art, the present application has the following advantages: 1. The plane adjusting module realizes the position adjustment of the inclination angle adjusting module in the Y-axis direction through the common action of the Y-axis spring and the Y-axis micrometer on the Y-axis bottom plate, and realizes the position adjustment of the inclination angle adjusting module in the X-axis direction through the common action of the X-axis spring and the X-axis micrometer on the X-axis bottom plate; the structure is simple and compact, the applicability is strong, and the cost is low while the alignment accuracy is ensured.

[0013] 2. The inclination angle adjusting module of the present application realizes the inclination angle adjustment of the X-axis inclination angle adjusting plate in the Y-axis direction through the joint action of the Y-axis inclination angle tension spring and the Y-axis adjusting ball head set screw; realizes the inclination angle adjustment of the X-axis inclination angle fixed plate in the Y-axis direction through the joint action of the X-axis inclination angle tension spring and the X-axis ball head set screw; and realizes the inclination angle adjustment of the X-axis and Y-axis directions through the sequentially connected X-axis inclination angle fixed plate, X-axis inclination angle adjusting plate and Y-axis inclination angle fixed plate, so that the overall structure is compact and suitable for all laser ranging modules.

[0014] 3. The inclination angle adjusting module of the present application realizes the height adjustment of the laser ranging module in the Z-axis direction through the joint action of the Z-axis tension spring and the Z-axis micrometer on the test head fixed plate; realizes the positioning of the test head fixed plate along the Z-axis direction through the locking of the Z-axis clamping block on the Z-axis micrometer, so as to facilitate the alignment of the laser ranging module in the Z-axis direction.

[0015] 4. The X-axis clamping block locking restricts the X-axis micrometer to realize the positioning of the X-axis bottom plate along the Z-axis direction, and the Y-axis clamping block locking restricts the Y-axis micrometer to realize the positioning of the Y-axis bottom plate along the Z-axis direction, so that the structure is simple and reliable and easy to operate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the present application installed in a miniature motor extension test equipment.

[0017] Figure 2 It is a structure schematic diagram of the plane adjusting module of the present application.

[0018] Figure 3 It is an axonometric view of the plane adjusting module of the present application.

[0019] Figure 4 It is a structure schematic diagram of the inclination angle adjusting module of the present application.

[0020] Figure 5 It is a schematic diagram of the connection of the Y-axis inclination angle fixed plate and the support module of the present application.

[0021] Figure 6 It is a partial structure schematic diagram of the inclination angle adjusting module of the present application (including the X-axis inclination angle adjusting plate and the Y-axis inclination angle fixed plate).

[0022] Figure 7 It is a partial structure schematic diagram of the inclination angle adjusting module of the present application (including the X-axis inclination angle fixed plate and the X-axis inclination angle adjusting plate).

[0023] Figure 8 It is a structure schematic diagram of the test head fixed plate of the present application.

[0024] Figure 9 It is a structure schematic diagram of the support module of the present application.

[0025] Figure 10The schematic diagram of the laser module structure of the application.

[0026] Figure 11 The schematic diagram of the power supply module of the application.

[0027] 100-positioning module, 110-plane adjustment module, 120-inclination adjustment module, 130-support module, 140-laser ranging module, 150-power supply module, 160-bottom carrier, 60-X-axis bottom plate, 61-Y-axis left linear rail, 62-Y-axis clamping block, 63-Y-axis micrometer, 64-Y-axis micrometer fixing block, 65-Y-axis right linear rail, 66-X-axis rear linear rail, 67-X-axis micrometer fixing block, 68-X-axis micrometer, 69-X-axis clamping block, 70-X-axis front linear rail, 71-X-axis heavy-duty tension spring, 72-Y-axis bottom plate, 73-Y-axis heavy-duty tension spring, 74-Z-axis micrometer, 75-Z-axis micrometer fixing block, 76-Z-axis clamping block, 77-X-axis inclination adjustment block, 78-fixing piece, 79-guide rod, 80-test head fixing plate, 81-X-axis inclination fixing plate, 82-X-axis inclination adjustment plate, 83-Y-axis inclination fixing plate, 84-Y-axis ball head stop screw, 85-first bearing, 86-X-axis ball head stop screw, 87-adjusting block, 88-pull pin, 89-Y-axis inclination heavy-duty tension spring, 90-crossed roller, 91-X-axis inclination heavy-duty tension spring, 92-test head pad block, 93-Z-axis heavy-duty tension spring, 1a-upper test head reinforcing plate, 2a-left acquisition fixing plate, 3a-left test head support, 4a-right test head support, 5a-right acquisition fixing plate, 6a-lower test head reinforcing plate, 7a-processor module, 8a-processor fixing plate, 9a-laser emitter, 10a-left power supply plate module, 11a-right power supply plate module, 12a-left acquisition module, and 13a-right acquisition module. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are some but not all of the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application. The application provides a laser ranging adjustment module for micro motor extension test, as shown in the accompanying drawings. Figure 1As shown, the laser ranging adjustment module is a mechanism used in a micro-motor telescopic testing device to align the laser ranging module 140 with the lens assembly of the camera module under test. This laser ranging adjustment module can position and adjust the tilt angle of the laser ranging module 140 in both the X-axis and Y-axis directions, as well as adjust the height of the Z-axis. In addition to the laser ranging adjustment module, the micro-motor telescopic testing device also includes a bottom carrier 160, a laser ranging module 140, a positioning module 100, and a data acquisition and power supply module 150. The bottom carrier 160 is used to mount the positioning module 100 and the laser ranging adjustment module. The positioning module 100 is used to carry and position the camera module under test. The laser ranging module 140 is used to measure the telescopic distance of the lens assembly in the camera module under test.

[0029] Figure 1 The three-dimensional coordinate system only indicates the direction and has no other meaning. For the convenience of explanation, the right refers to the +X direction, the left refers to the -X direction, the back refers to the +Y direction, the front refers to the -Y direction, the top refers to the +Z direction, and the bottom refers to the -Z direction.

[0030] The micromotor telescopic testing equipment features a bilaterally symmetrical structure, enabling simultaneous or alternating telescopic testing of two camera modules under test. In this embodiment, the laser ranging adjustment module located on the right side is used as an example. The module includes a plane adjustment module 110, an inclination adjustment module 120, and a bracket module 130.

[0031] The plane adjustment module 110 is fixed to the bottom carrier 160 by bolts, the bracket module 130 is fixed to the plane adjustment module 110 by bolts, the tilt adjustment module 120 and the acquisition power supply module 150 are respectively fixed to the bracket module 130 by bolts, and the laser ranging module 140 is fixed to the tilt adjustment module 120 by bolts.

[0032] The plane adjustment module 110 is located behind the positioning module 100 and fixed on the bottom carrier 160. The plane adjustment module 110 drives the laser ranging adjustment module to move along the X-axis and Y-axis directions through the bracket module 130, thereby driving the laser ranging module 140 to align and calibrate with the lens assembly in the X-axis and Y-axis directions.

[0033] like Figure 2As shown, the planar adjustment module 110 includes an X-axis bottom plate 60, a Y-axis left linear rail 61, a Y-axis clamping block 62, a Y-axis micrometer 63, a Y-axis micrometer fixing block 64, a Y-axis right linear rail 65, an X-axis rear linear rail 66, an X-axis micrometer fixing block 67, an X-axis micrometer 68, an X-axis clamping block 69, an X-axis front linear rail 70, an X-axis heavy-duty tension spring 71, a Y-axis bottom plate 72, and a Y-axis heavy-duty tension spring 73. The Y-axis bottom plate 72 is slidably connected to the bottom carrier 160 through the Y-axis left linear rail 61 and the Y-axis right linear rail 65, the X-axis bottom plate 60 is slidably connected to the Y-axis bottom plate 72 through the X-axis rear linear rail 66 and the X-axis front linear rail 70, and the upper end of the X-axis bottom plate 60 is provided with a mounting hole for connecting with the support module 130.

[0034] The Y-axis left linear rail 61 and the Y-axis right linear rail 65 are both arranged along the Y-axis and are fixed on the bottom carrier 160 by bolts. The left and right ends of the Y-axis bottom plate 72 are fixed on the sliding blocks of the Y-axis left linear rail 61 and the Y-axis right linear rail 65 by bolts, respectively. Figure 3 As shown, the Y-axis heavy-duty tension spring 73 is arranged along the Y-axis direction and can be stretched along the Y-axis direction. The rear ends of one or more Y-axis heavy-duty tension springs 73 are fixed on the bottom carrier 160 by bolts, and the front ends of the Y-axis heavy-duty tension springs 73 are fixed on the lower end of the Y-axis bottom plate 72 by bolts. The Y-axis heavy-duty tension springs 73 are always in a stretched state, so that the Y-axis bottom plate 72 moves from front to back along the Y-axis.

[0035] The Y-axis micrometer 63 is installed on the bottom carrier 160 through the Y-axis micrometer fixing block 64. The Y-axis micrometer 63 is located behind the Y-axis bottom plate 72, and the distance between the Y-axis micrometer 63 and the Y-axis left linear rail 61 is the same as the distance between the Y-axis micrometer 63 and the Y-axis right linear rail 65. The Y-axis micrometer 63 is provided with a first adjusting knob and a first guide shaft, and the rear end of the Y-axis bottom plate 72 is in contact with the middle part of the first guide shaft. The Y-axis clamping block 62 is located on the same straight line as the first guide shaft and is fixed on the bottom carrier 160 by bolts. The Y-axis clamping block 62 is used to clamp and limit the first guide shaft.

[0036] In the initial state of the Y-axis bottom plate 72, the Y-axis heavy-duty tension spring 73 is in a stretched state. After the Y-axis clamping block 62 is released, the first guide shaft can move forward and backward along the Y-axis, and the Y-axis bottom plate 72 can move forward and backward along the Y-axis left linear rail 61 and the Y-axis right linear rail 65. When the first adjusting knob is rotated to move the first guide shaft forward along the Y-axis direction, the Y-axis bottom plate 72 is pushed to move forward against the tension of the Y-axis heavy-duty tension spring 73. When the first adjusting knob is rotated to move the first guide shaft backward along the Y-axis direction, the first guide shaft moves from front to back, and at the same time, the Y-axis bottom plate 72 moves backward under the action of the tension of the Y-axis heavy-duty tension spring 73. After the position adjustment in the Y-axis direction is completed, the first guide shaft is clamped and limited by the Y-axis clamping block 62 to prevent the Y-axis bottom plate 72 from moving in the Y-axis direction, thereby realizing the positioning in the Y-axis direction.

[0037] Both the X-axis rear rail 66 and the X-axis front rail 70 are positioned along the X-axis and bolted to the upper end of the Y-axis base plate 72. The front and rear ends of the X-axis base plate 60 are bolted to the sliders of the X-axis front rail 70 and the X-axis rear rail 66, respectively. X-axis heavy-duty tension springs 71 are positioned along the X-axis and can extend and retract along the X-axis. The right ends of one or more X-axis heavy-duty tension springs 71 are evenly bolted to the upper end of the Y-axis base plate 72, while the left ends of these springs are bolted to the lower end of the X-axis base plate 60. These heavy-duty X-axis tension springs 71 are always in tension, pulling the X-axis base plate 60 from left to right along the X-axis.

[0038] An X-axis micrometer 68 is mounted on the right end of the Y-axis baseplate 72 via an X-axis micrometer fixing block 67. The X-axis micrometer 68 is equidistant from both the X-axis front linear rail 70 and the X-axis rear linear rail 66. The X-axis micrometer 68 is equipped with a second adjustment knob and a second guide shaft, which abuts the middle of the right end of the X-axis baseplate 60. An X-axis clamping block 69 is aligned with the second guide shaft and bolted to the bottom carrier 160. This clamping block 69 is used to clamp the second guide shaft and retain it in position.

[0039] In the initial state of the X-axis base plate 60, the X-axis heavy-duty tension spring 71 is in a stretched state. After the X-axis clamping block 69 is released, the second guide shaft can move left and right along the X-axis, and the X-axis base plate 60 can move left and right along the X-axis front linear rail 70 and the X-axis rear linear rail 66. When the second guide shaft is moved leftward along the X-axis direction by rotating the second adjustment knob, the second guide shaft moves from right to left, pushing the X-axis base plate 60 to move leftward, overcoming the tension of the X-axis heavy-duty tension spring 71. When the second guide shaft is moved backward along the X-axis direction by rotating the first adjustment knob, the first guide shaft moves from left to right, and the X-axis base plate 60 moves rightward under the tension of the X-axis heavy-duty tension spring 71. After the X-axis position adjustment is completed, the second guide shaft is clamped and limited by the X-axis clamping block 69 to prevent the X-axis base plate 60 from displacement in the X-axis direction, thereby achieving X-axis positioning.

[0040] like Figure 4 As shown, the tilt adjustment module 120 is arranged between the front end of the bracket module 130 and the laser ranging module 140. The tilt adjustment module 120 is used to adjust the tilt angle of the laser ranging module 140 in the X-axis and Y-axis directions, and adjust the height of the laser ranging module 140 in the Z-axis direction.

[0041] The inclination adjustment module 120 comprises a Z-axis micrometer 74, a Z-axis micrometer fixing block 75, a Z-axis clamping block 76, an X-axis inclination adjustment block 77, a fixing member with a second bearing 78, a guide rod 79, a test head fixing plate 80, an X-axis inclination fixing plate 81, an X-axis inclination adjustment plate 82, a Y-axis inclination fixing plate 83, a Y-axis ball head set screw 84, a first bearing 85, an X-axis ball head set screw 86, an adjustment block 87, a pull pin 88, a Y-axis heavy load tension spring 89, a cross roller 90, an X-axis heavy load tension spring 91, a test head pad 92, and a Z-axis heavy load tension spring 93. The specific component connection relationship is as follows: As shown in Figure 5 The upper end of the X-axis inclination adjustment plate 82 is rotationally connected to the upper end of the Y-axis inclination fixing plate 83. Specifically, the Y-axis inclination fixing plate 83 is fixed at the front end of the support module 130 by bolts. The upper end of the Y-axis inclination fixing plate 83 is provided with two locking holes in the X-axis direction. The locking holes lock the guide rod 79. The two ends of the guide rod 79 respectively pass through the two locking holes and are connected to the second bearings provided on the fixing member 78. The fixing member 78 is fixed on the upper end of the X-axis inclination adjustment plate 82 by screws. The fixing member 78 drives the X-axis inclination adjustment plate 82 to rotate around the guide rod 79 in the Y-axis direction.

[0042] As shown in Figure 6 The X-axis inclination adjustment plate 82 is located at the front end of the Y-axis inclination fixing plate 83. The Y-axis inclination fixing plate 83 and the X-axis inclination adjustment plate 82 are clamped together by the tension of the Y-axis heavy load tension spring 89. In this embodiment, a plurality of Y-axis heavy load tension springs 89 are evenly distributed between the Y-axis inclination fixing plate 83 and the X-axis inclination adjustment plate 82. The Y-axis heavy load tension spring 89 is arranged along the Y-axis and can stretch in the Y-axis direction. The Y-axis inclination fixing plate 83 and the X-axis inclination adjustment plate 82 are provided with through holes in the Y-axis direction at positions corresponding to the Y-axis heavy load tension spring 89. The front and rear ends of the Y-axis heavy load tension spring 89 are fixed to the through holes of the X-axis inclination adjustment plate 82 and the Y-axis inclination fixing plate 83 by the pull pin 88.

[0043] The lower end of the Y-axis inclination fixing plate 83 is provided with a through hole in the Y-axis direction. The Y-axis adjustment ball head set screw 84 is threadedly connected to the through hole and can move forward and backward in the through hole. The ball head of the Y-axis adjustment ball head set screw 84 faces the X-axis inclination adjustment plate 82. By moving the ball head of the Y-axis adjustment ball head set screw 84 forward along the Y-axis direction to push the X-axis inclination adjustment plate 82, and under the joint action of the elastic force of the Y-axis heavy load tension spring 89, the X-axis inclination adjustment plate 82 rotates in the Y-axis direction, the inclination of the X-axis inclination adjustment plate 82 in the Y-axis direction is adjusted, and the inclination of the laser ranging module 140 in the Y-axis direction is adjusted.

[0044] As shown in Figure 7As shown, the X-axis inclination fixing plate 81 is located at the front end of the X-axis inclination adjustment plate 82. The inner ring of the first bearing 85 is bolted to the lower portion of the front end surface of the X-axis inclination adjustment plate 82. The X-axis inclination adjustment plate 82 is provided with a positioning post, and the inner ring of the first bearing 85 is sleeved around the positioning post. The outer ring of the first bearing 85 is also bolted to the rear end surface of the X-axis inclination fixing plate 81. The outer ring of the first bearing 85 can rotate around the inner ring of the first bearing 85, allowing the X-axis inclination fixing plate 81 to rotate along the X-axis inclination adjustment plate 82 in the X-axis direction.

[0045] One or more X-axis tilt heavy-load tension springs 91 are evenly arranged along the X-axis and can be extended and retracted in the X-axis direction. One end of the X-axis tilt heavy-load tension spring 91 is fixed to the rear end surface of the X-axis tilt fixing plate 81, and the other end is fixed to the front end surface of the X-axis tilt adjustment plate 82.

[0046] Two X-axis ball set screws 86 are located on either side of the top of the X-axis tilt adjustment plate 82, respectively, via adjustment blocks 87. The distance between adjustment blocks 87 and the X-axis tilt adjustment plate 82 can be adjusted via the X-axis tilt adjustment block 77. The X-axis ball set screws 86 are positioned along the X-axis. Adjustment blocks 87 have threaded holes extending along the X-axis, through which the X-axis ball set screws 86 threadably connect. The X-axis ball set screws 86 can move forward and backward within the threaded holes. The ball heads of the two X-axis ball head set screws 86 are respectively in contact with the left and right ends of the X-axis inclination fixing plate 81. By adjusting the distance that the ball heads of the left and right X-axis ball head set screws 86 pass through the threaded holes, the upper end of the X-axis inclination adjustment plate 82 is moved in the X-axis direction. At the same time, under the elastic force of the X-axis inclination heavy-load tension spring 91, the X-axis inclination fixing plate 81 is rotated in the X-axis direction, thereby realizing the inclination adjustment of the X-axis inclination fixing plate 81 in the X-axis direction, thereby achieving the purpose of adjusting the X-axis inclination of the laser ranging module 140X direction.

[0047] The test head fixing plate 80 is mounted on the front end surface of the X-axis tilt fixing plate 81 via cross rollers 90. The test head fixing plate 80 can slide up and down along the Z-axis direction on the X-axis tilt fixing plate 81 along the cross rollers 90. A test head pad 92 is provided between the test head fixing plate 80 and the laser ranging module 140. The test head pad 92 is evenly mounted on the front end surface of the test head fixing plate 80.

[0048] like Figure 8 As shown, Z-axis heavy-duty tension springs 93 are arranged along the Z-axis, with one or more Z-axis heavy-duty tension springs 93 evenly positioned between the test head mounting plate 80 and the X-axis tilt fixing plate 81. The upper ends of the Z-axis heavy-duty tension springs 93 are fixed to the test head mounting plate 80, while the lower ends of the Z-axis heavy-duty tension springs 93 are fixed to the X-axis tilt fixing plate 81. The Z-axis heavy-duty tension springs 93 are always in a stretched state, and the tension of the Z-axis heavy-duty tension springs 93 forces the test head mounting plate 80 to move downward.

[0049] The Z-axis micrometer 74 is fixed to the middle of the lower end of the X-axis inclination fixing plate 81 via a Z-axis micrometer fixing block 75. The Z-axis micrometer 74 is equipped with a third adjustment knob and a third guide shaft. The third guide shaft abuts the middle of the lower end of the test head fixing plate 80, preventing the test head fixing plate 80 from moving downward. Turning the third adjustment knob of the Z-axis micrometer 74 allows the height of the test head fixing plate 80 to be fine-tuned up and down via the third guide shaft. The Z-axis clamping block 76 is located in a straight line with the third guide shaft and is bolted to the X-axis inclination fixing plate 81. The Z-axis clamping block 76 is used to clamp the third guide shaft and limit it. That is, after adjusting the height of the test head fixing plate 80, the Z-axis clamping block 76 keeps the third guide shaft of the Z-axis micrometer 74 stationary, allowing the test head fixing plate 80 to be adjusted in the Z-axis direction, thereby achieving the purpose of positioning the laser ranging module 140 in the Z-axis direction.

[0050] like Figure 9 As shown, the bracket module 130 is fixedly mounted on the upper end of the X-axis base plate 60 of the plane adjustment module 110. The bracket module 130 is used to mount the tilt adjustment module 120 and the acquisition and power supply module 150. The bracket module 130 includes an upper test head reinforcement plate 1a, a left acquisition fixing plate 2a, a left test head bracket 3a, a right test head bracket 4a, a right acquisition fixing plate 5a, and a lower test head reinforcement plate 6a.

[0051] The left and right test head brackets 3a and 4a are respectively fixed to the left and right ends of the X-axis base plate 60 on the plane adjustment module 110. The front end surfaces of the upper portions of the left and right test head brackets 3a and 4a are connected to the Y-axis inclination fixing plate 83. The upper and lower test head reinforcement plates 1a and 6a are both vertically mounted between the left and right test head brackets 3a and 4a, with the upper test head reinforcement plate 1a positioned above the lower test head reinforcement plate 6a.

[0052] The left and right acquisition mounting plates 2a and 5a are fixed to the center of the rear ends of the left and right test head brackets 3a and 4a, respectively. The left end of the left test head bracket 3a, the right end of the right test head bracket 4a, and the left and right acquisition mounting plates 2a and 5a are all used to mount the acquisition and power supply module 150.

[0053] like Figure 10 As shown, the laser ranging module 140 is mounted on the front surface of the test head mounting plate 80 of the tilt adjustment module 120. The laser ranging module 140 includes a processor module 7a, a processor mounting plate 8a, and a laser emitter 9a. The laser emitter 9a uses laser ranging to measure the extension and retraction of the camera module under test, and the processor module 7a displays the result.

[0054] like Figure 11As shown, the acquisition power supply module 150 provides overall power supply, including the left power supply plate module 10a, the right power supply plate module 11a, the left acquisition module 12a and the right acquisition module 13a. The left power supply plate module 10a is fixed on the left test head support 3a by bolts, the right power supply plate module 11a is fixed on the right test head support 4a by bolts, the left acquisition module 12a is fixed on the left acquisition fixed plate 2a by bolts, and the right acquisition module 13a is fixed on the right acquisition fixed plate 5a by bolts.

[0055] The working principle of the laser ranging adjustment module provided by the application for the micro motor extension test is as follows: before the test, the position of the laser emitter 9a of the laser ranging module 140 is adjusted according to the position of the to-be-tested camera module after positioning, that is, after the position of the lens assembly in the to-be-tested camera module is determined, specifically: the position of the laser ranging module 140 in the X axis and the Y axis is adjusted through the X axis micrometer 68 and the Y axis micrometer 63 of the plane adjustment module 110; the inclination of the laser ranging module 140 in the X axis direction and the Y axis direction is adjusted through the X axis ball head stop screw 86 and the Y axis ball head stop screw 84 of the inclination adjustment module 120; the height of the laser ranging module 140 in the Z axis is adjusted through the Z axis micrometer 74 of the inclination adjustment module 120, and finally the laser emitter 9a is located at the specified position. During the test, the to-be-tested camera module of the required test product is placed on the stage of the positioning module 100 to start the test, the fixed probe provided in the positioning module 100 is inserted into the test product to be powered on after the positioning module 100 completes the positioning of the to-be-tested camera module, the lens assembly in the to-be-tested camera module is extended and retracted, the laser ranging of the laser emitter 9a is started, and the extension distance test of the product is performed.

[0056] The above is only a preferred embodiment of the application, and is not used to limit the application, and any modification, equivalent replacement and improvement within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A laser ranging adjustment module for micro motor extension and contraction testing, characterized in that: The laser ranging adjustment module includes a plane adjustment module, an inclination adjustment module and a bracket module; the inclination adjustment module is installed on the plane adjustment module through the bracket module, and the inclination adjustment module is connected to the laser ranging module for adjusting the inclination of the laser ranging module; The plane adjustment module includes an X-axis base plate, a Y-axis base plate, a Y-axis micrometer, an X-axis micrometer, an X-axis spring, and a Y-axis spring; The Y-axis base plate is slidably connected to the bottom carrier along the Y-axis direction, and the X-axis base plate is slidably connected to the Y-axis base plate along the X-axis direction; A Y-axis spring and a Y-axis micrometer are connected between the Y-axis base plate and the bottom carrier. The Y-axis spring enables the Y-axis base plate to slide from one end to the other along the Y-axis direction. The Y-axis micrometer allows the Y-axis base plate to slide from one end to the other along the Y-axis direction, thereby adjusting the position of the Y-axis base plate in the Y-axis direction; An X-axis spring and an X-axis micrometer are connected between the X-axis base plate and the Y-axis base plate. The X-axis spring enables the X-axis base plate to slide from one end to the other along the X-axis direction; the Y-axis micrometer enables the X-axis base plate to slide from the other end to one end along the X-axis direction, thereby realizing position adjustment of the X-axis base plate in the X-axis direction.

2. The laser distance measurement and adjustment module for micro motor extension and contraction testing according to claim 1, characterized in that: The tilt adjustment module includes an X-axis tilt adjustment plate, a Y-axis tilt fixing plate, a Y-axis ball head set screw, and a Y-axis tilt tension spring; The Y-axis inclination fixing plate is fixed on the bracket module, and the X-axis inclination adjustment plate and the Y-axis inclination fixing plate are connected by the tension of the Y-axis inclination tension spring. The Y-axis inclination tension spring expands and contracts along the Y-axis, and the upper end of the X-axis inclination adjustment plate is rotatably connected to the upper end of the Y-axis inclination fixing plate; the Y-axis adjustment ball head set screw is threadedly connected to the lower end of the Y-axis inclination fixing plate along the Y-axis direction, and the lower end of the X-axis inclination adjustment plate is moved along the Y-axis direction through the Y-axis adjustment ball head set screw. At the same time, under the joint action of the elastic force of the Y-axis inclination tension spring, the inclination of the X-axis inclination adjustment plate in the Y-axis direction is achieved.

3. The laser distance measurement and adjustment module for micro motor extension and contraction testing according to claim 2, characterized in that: The tilt adjustment module also includes an adjustment block, an X-axis tilt adjustment plate, a first bearing, an X-axis ball head set screw, and an X-axis tilt tension spring; The X-axis inclination fixing plate is rotatably connected to the X-axis inclination adjustment plate through a first bearing, the X-axis inclination fixing plate and the X-axis inclination adjustment plate are connected through an X-axis inclination tension spring, the X-axis ball head set screw is arranged at the upper end of the X-axis inclination adjustment plate along the X-axis direction through an adjustment block, the X-axis ball head set screw is threadedly connected to the adjustment block, and the upper end of the X-axis inclination adjustment plate is pushed to move in the X-axis direction through the X-axis ball head set screw. At the same time, under the joint action of the elastic force of the X-axis heavy-load tension spring, the inclination of the X-axis inclination fixing plate in the X-axis direction is achieved.

4. The laser distance measurement and adjustment module for micro motor extension and contraction testing according to claim 3, characterized in that: The tilt adjustment module also includes a Z-axis micrometer, a test head fixing plate, and a Z-axis heavy-duty tension spring; the test head fixing plate is slidably connected to the X-axis tilt fixing plate, and the test head fixing plate is used to connect to the laser ranging module; A Z-axis tension spring and a Z-axis micrometer are connected between the test head fixing plate and the X-axis tilt fixing plate. The Z-axis tension spring enables the test head fixing plate to slide from one end to the other along the Z-axis direction. The Z-axis micrometer allows the test head fixing plate to slide from the other end to one end along the Z-axis direction, thereby achieving height adjustment of the test head fixing plate in the Z-axis direction.

5. The laser distance measurement and adjustment module for micro motor extension and contraction testing according to claim 2, characterized in that: Two locking holes along the X-axis direction are provided at the upper end of the Y-axis inclination fixing plate, and the locking holes lock the guide rod. Two locking holes are respectively passed through the two ends of the guide rod, and the passing ends are respectively connected to the second bearings provided with the fixing block. The fixing block is fixed to the upper end of the X-axis inclination adjustment plate, and the fixing block drives the X-axis inclination adjustment plate to rotate around the guide rod along the Y-axis direction.

6. The laser distance measurement and adjustment module for micro motor extension and contraction testing according to claim 4, characterized in that: The inclination adjustment module also includes a Z-axis micrometer fixing block and a Z-axis clamping block; The Z-axis micrometer is fixed to the X-axis inclination fixing plate through the Z-axis micrometer fixing block, and the Z-axis clamping block realizes the positioning of the test head fixing plate along the Z-axis direction by locking and limiting the Z-axis micrometer.

7. The laser distance measurement and adjustment module for micro motor extension and contraction testing according to any one of claims 1 to 6, characterized in that: The plane adjustment module also includes an X-axis micrometer fixed block and an X-axis clamping block; The X-axis micrometer is installed on the Y-axis base plate through the X-axis micrometer fixing block, and the X-axis clamping block locks and limits the X-axis micrometer to achieve the positioning of the X-axis base plate along the X-axis direction.

8. The laser distance measurement and adjustment module for micro motor extension and contraction testing according to claim 7, characterized in that: The plane adjustment module also includes a Y-axis clamping block and a Y-axis micrometer fixing block; the Y-axis micrometer is installed on the bottom carrier through the Y-axis micrometer fixing block, and the Y-axis clamping block locks and limits the Y-axis micrometer to achieve the positioning of the Y-axis base plate along the Z-axis direction.

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