A positioning module for micro motor telescopic test

Abstract

The application relates to a positioning module for telescopic testing of a miniature motor, which comprises a carrier base, a carrier module, a needle mold module, a side pushing module and a front-back moving module; the upper end face of the carrier module is provided with an X-axis limiting part and a Y-axis limiting part at the front end and the left end respectively; the front-back moving module comprises a cylinder fixed on the carrier base, a needle mold sliding base in sliding connection with the carrier base and a side pushing push rod and a side pushing block arranged on the needle mold sliding base; the needle mold module is arranged on the needle mold sliding base, the needle mold sliding base moves forward along the Y axis under the drive of the cylinder, the side pushing push rod pushes the product to be tested leftward along the X axis in advance through the side pushing module and is limited by the Y-axis limiting part, so that the positioning in the X-axis direction is realized; the side pushing block pushes the product to be tested forward along the Y axis and is limited by the X-axis limiting part, so that the positioning in the Y-axis direction is realized; the needle mold module moves forward and is inserted into the motor of the product to be tested, so that the lens of the product to be tested is telescoped. The application can automatically realize the positioning of the camera module to be tested.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of micro-mechanical testing equipment, and particularly relates to a positioning 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 equipment, etc., 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 in 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 use a special fixture to fix the camera module to be tested, a high-precision displacement sensor (such as a laser displacement sensor) is aligned with the lens carrier or lens barrel, and the extension displacement is measured non-contactly. At the same time, a test interface board is used to apply a driving signal to the motor and receive the feedback signal of the internal Hall sensor. The existing technical solution has the following significant problems:

[0004] The positioning accuracy of the fixture for fixing the camera module to be tested is extremely high, and the reliability is insufficient, especially in high-precision (micron-level) testing scenarios. A large amount of time is spent on fixture positioning before each replacement of the test module or batch testing, which seriously restricts the production line testing rhythm. The fixture positioning mechanism is often designed for a specific model of module, and the cost is too high while the universality is poor. SUMMARY

[0005] Therefore, the present application provides a positioning module for micro motor extension testing, which automatically realizes the positioning of the camera module to be tested. It has compact structure, high precision, stability and reliability, and strong universality, and meets the stringent requirements of modern large-scale automated production.

[0006] The positioning module for the micro motor extension test comprises a carrier base, a carrier module, a needle mold module, a side pushing module and a front and back moving module; the carrier module and the side pushing module are installed on the carrier base, and the side pushing module is located on the right side of the carrier module; the front end and the left end of the upper end surface of the carrier module are respectively provided with an X-axis limiting part and a Y-axis limiting part, the left direction is represented as the -X direction, the back direction is represented as the +Y direction, and the front direction is represented as the -Y direction; the product to be tested is placed in the space surrounded by the X-axis limiting part and the Y-axis limiting part; the front and back moving module comprises a cylinder fixed on the carrier base, a needle mold sliding seat in sliding connection with the carrier base, a side pushing rod and a side pushing block provided on the needle mold sliding seat; the needle mold module is provided on the needle mold sliding seat, and the needle mold sliding seat moves forward along the Y-axis under the driving of the cylinder, thereby driving the side pushing rod, the side pushing block and the needle mold module to move forward; in the process, the side pushing rod pushes the product to be tested leftward along the X-axis by the side pushing module, and the product to be tested is limited by the Y-axis limiting part, so that the positioning of the product to be tested in the X-axis direction is realized; then, the side pushing block pushes the product to be tested forward along the Y-axis, and the product to be tested is limited by the X-axis limiting part, so that the positioning of the product to be tested in the Y-axis direction is realized; finally, the needle mold module moves forward and inserts into the motor of the product to be tested, so that the lens of the product to be tested is extended and retracted.

[0007] Further, the side pushing module comprises a side pushing head, a fixed shaft, a bearing limiting block, a fixed sliding rod, a fixed part and a first bearing; the fixed part is fixed on the carrier base, the fixed shaft is arranged along the Z-axis direction and located in the guide groove provided along the X-axis direction of the fixed part, the lower end of the fixed shaft is connected with the first bearing, and the upper end of the fixed shaft is connected with the side pushing head; the fixed sliding rod is arranged along the Y-axis direction on the carrier base, and the left end is provided with a protruding bearing limiting block which can move along the fixed sliding rod; the side pushing rod drives the bearing limiting block to move forward, so that the protruding bearing limiting block drives the first bearing to move leftward along the X-axis, thereby driving the side pushing head to drive the product to be tested to move leftward.

[0008] Further, the positioning module is further provided with a downward pressing module, and the downward pressing module comprises a downward pressing base, a customized pressing head, a pressing head sliding block, a second bearing, a micro guide rail, a fixed block and a guide rod; the downward pressing base is in sliding connection with the carrier base, and the front and back moving module drives the downward pressing base to move forward and backward along the Y-axis; the micro guide rail is arranged on the downward pressing base along the Z-axis direction through the fixed block, the customized pressing head moves up and down along the micro guide rail through the pressing head sliding block; the guide rod passes through the pressing head sliding block and is provided with a positioning hole at the upper end, and the guide rod can move up and down in the positioning hole; the lower end of the guide rod is fixed on the downward pressing base, and the end of the guide rod passing out is provided with a first limiting part; a third spring sleeved on the guide rod is arranged between the pressing head sliding block and the downward pressing base sliding block, and the third spring is always in a compressed state; the second bearing is arranged on the top of the pressing head sliding block, the axis of the second bearing is parallel to the X-axis, and the second bearing is subjected to the force downward along the Z-axis of the front and back moving module, so that the pressing head sliding block drives the customized pressing head to move downward along the micro guide rail, and the product to be tested is pressed.

[0009] Further, the front and back moving module further comprises an inclined sliding block moving forward and backward along the Y axis under the driving of the air cylinder, and the inclined sliding block is provided with an inclined surface for abutting against the second bearing, and the inclined surface is inclined downward from front to back.

[0010] Further, the rear end of the lower pressing base is connected with a pull rod, the needle die sliding base is fixed with a side pushing connecting block, the rear end of the pull rod passes through the side pushing connecting block and is provided with a through hole in the Y axis direction and is movable forward and backward in the through hole, the pull rod passing end is provided with a third limiting piece, a seventh spring sleeved on the pull rod is arranged between the side pushing connecting block and the lower pressing base, and the seventh spring is always in a compressed state.

[0011] Further, the front and back moving module further comprises a lower pressing base limiting block provided with a rotatable screw bolt in the Y axis direction, the distance between the rotatable screw bolt and the lower pressing base is adjusted by rotating the rotatable screw bolt, so that the maximum displacement of the lower pressing base forward along the Y axis is adjusted.

[0012] Further, the side pushing block is slidingly connected with the needle die sliding base, the rear end of the side pushing block is connected with a limiting guide column, the needle die sliding base is fixed with a middle pulling block provided with a guide hole in the Y axis direction, the rear end of the limiting guide column passes through the guide hole and is movable forward and backward in the guide hole, the passing end of the limiting guide column is provided with a second limiting piece, a sixth spring sleeved on the limiting guide column is arranged between the middle pulling block and the side pushing block, and the sixth spring is always in a compressed state.

[0013] Further, the front and back moving module further comprises a needle die limiting block, and the front end of the needle die sliding base is provided with a needle die sliding base limiting block; the needle die sliding base limiting block is used for limiting the maximum displacement of the needle die sliding base moving forward; and the rear end of the needle die sliding base limiting block and the front end of the needle die limiting block are respectively provided with a fourth spring and a fifth spring.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. The needle die sliding base of the present application moves forward along the Y axis under the driving of the air cylinder, drives the side pushing rod, the side pushing block and the needle die module to move forward, and sequentially realizes automatic positioning in the X axis and Y axis directions in the process, so that the overall structure is compact, the alignment accuracy is high, the space surrounded by the X axis limiting part and the Y axis limiting part is used for placing the products to be tested, and the applicability is strong and the universality is high.

[0016] 2. In the lower pressing module of the present application, the customized pressing head moves up and down along the micro guide rail through the pressing head sliding block, the pressing head sliding block and the lower pressing base sliding block are provided with a guide rod sleeved with a third spring, when the customized pressing head presses the product to be tested, the upper end of the guide rod extends from the pressing head sliding block and compresses the third spring; after the force of the second bearing is removed, the pressing head sliding block moves upward under the elastic force of the third spring, and simultaneously drives the customized pressing head to move upward, thereby releasing the limiting of the product to be tested.

[0017] 3. The lower pressing base of the present application is limited by the pressing base limiting block as the needle die module moves forward, the pull rod extends through the through hole, the seventh spring is compressed, the lower pressing base and the lower pressing module thereon are stationary, and the inclined slide block in contact with the second bearing in the lower pressing module still moves forward with the needle die module, so that the inclined surface presses downward on the second bearing, the custom pressure head moves downward along the micro guide rail driven by the pressure head slide block, and is used for pressing the product to be tested, i.e. Z-axis direction limiting.

[0018] 4. The fourth spring and the fifth spring are arranged at the corresponding positions of the rear end of the needle die slide block limiting block and the front end of the needle die limiting block, respectively, after the Y-axis direction positioning is completed, the cylinder is pushed forward, the fourth spring and the fifth spring are continuously compressed to offset the pushing force of the forward movement of the cylinder, at the same time, the middle tension block compresses the sixth spring sleeved on the limiting guide column as the needle die slide block moves forward, the rear end of the limiting guide column extends backward along the guide hole on the middle tension block, so that the side pushing block remains stationary, and it is ensured that it will not be squeezed to the product to be tested as the needle die slide block moves forward. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the present application installed in a micro motor extension test equipment.

[0020] Figure 2 It is a schematic diagram of the overall structure of the present application.

[0021] Figure 3 It is a schematic diagram of the carrier module structure of the present application.

[0022] Figure 4 It is a schematic diagram of the needle die module structure of the present application.

[0023] Figure 5 It is a schematic diagram of the side pushing module structure of the present application.

[0024] Figure 6 It is a schematic diagram of the lower pressing module structure of the present application.

[0025] Figure 7 It is a schematic diagram of the forward and backward moving module structure of the present application.

[0026] Figure 8 It is a schematic diagram of the forward and backward moving module structure of the present application.

[0027] Figure 9 It is a schematic diagram of the connection between the forward and backward moving module and the lower pressing base of the present application (not including the inclined slide block).

[0028] Wherein, 100-positioning module, 101-carrier module, 102-needle module, 103-side push module, 104-down pressure module, 105-front and back movement module, 140-laser ranging module, 150-acquisition power supply module, 160-bottom carrier, 1-first clamp, 2-second clamp, 3-carrier, 4-probe, 5-connector, 6-circuit board, 7-insulating plate, 8-fixing part, 9-fixing pin, 10-side push head, 11-fixing shaft, 12-connection part, 13-bearing limiting block, 14-baffle, 15-fixing slide rod, 16-front fixing seat, 17-rear fixing seat, 18-fixing piece, 19-first bearing, 22-customized pressure head, 23-pressure head connecting block, 24-pressure head sliding block, 25-second bearing, 26-micro guide rail, 27-guide rail sliding block, 28-fixing block, 29-guide rod, 30-carrier base, 31-down pressure base limiting block, 32-needle module sliding base limiting block, 33-first linear rail, 34-inclined sliding block fixing seat, 35-cylinder joint, 36-cylinder fixing seat, 37-cylinder, 38-external joint, 39-second linear rail, 40-cylinder limiting block, 41-intermediate limiting block, 42-needle module sliding base, 43-down pressure base, 44-pull rod, 45-left side push connecting block, 46-needle module limiting block, 47-third linear rail, 48-intermediate tension block, 49-right side push connecting block, 50-side push rod, 51-side push block, 52-spring block, 53-inclined sliding block, 54-limiting guide column. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0030] The present application provides a positioning module for micro motor extension test, as shown in the drawing, Figure 1 The present application provides a positioning module for micro motor extension test, as shown in the drawing,

[0031] Figure 1The three-dimensional coordinate system is only used to indicate direction and has no other meaning. For ease of explanation, in the following text, right refers to the +X direction, left refers to the -X direction, back refers to the +Y direction, front refers to the -Y direction, top refers to the +Z direction, and bottom refers to the -Z direction.

[0032] like Figure 2 As shown, the positioning module 100 includes a carrier base 30, a carrier module 101, a pin mold module 102, a side-pushing module 103, a pressing module 104, and a forward / backward moving module 105. The carrier base 30 serves as the support for the other modules. Each carrier module 101, pin mold module 102, side-pushing module 103, and pressing module 104 constitutes a test assembly, corresponding to one camera module under test. Multiple test assemblies can be set according to requirements; in this embodiment, there are two test assemblies.

[0033] like Figure 3 As shown, the carrier module 101 is used to carry the camera module under test. The carrier module 101 includes a platform 3, a first clamp 1, and a second clamp 2. The platform 3 is fixed to the front part of the upper end of the carrier base 30 by bolts, and the first clamp 1 and the second clamp 2 are both fixed to the top of the platform 3.

[0034] The first fixture 1 is a semi-enclosed structure consisting of an X-axis limiting part and a Y-axis limiting part, located at the front left of the stage 3. The Y-axis limiting part is located at the left end of the stage 3 along the Y-axis direction, and the X-axis limiting part is located at the front end of the stage 3 along the X-axis direction. The second fixture 2 is a columnar structure located at the rear right of the stage 3. The first fixture 1 and the second fixture 2 form a housing chamber for the micro motor to be tested, and the right end and rear end of the housing chamber are open to expose the right end and rear end of the camera module to be tested, respectively.

[0035] The side-pushing module 103 pushes the right end of the camera module under test, causing it to move to the right along the X-axis and be limited by the Y-axis limiting part of the first clamp 1; the forward and backward moving module 105 pushes the rear end of the camera module under test, causing it to move forward along the Y-axis and be limited by the X-axis limiting part.

[0036] like Figure 4 As shown, the needle template module 102 is located behind the carrier module 101, corresponding to the rear opening of the accommodating chamber. The needle template module 102 is used to insert the motor in the camera module under test, causing the lens in the camera module under test to extend and retract when powered on. The needle template module 102 includes a probe 4, a connector 5, a circuit board 6, an insulating plate 7, and a fixing part 8 connected together from front to back. The probe 4 is fixed to the circuit board 6 by the connector 5, and the circuit board 6 is fixed to the fixing part 8 by the insulating plate 7. The fixing part 8 is used to connect to the front and rear moving module 105. The needle template module 102 moves in the Y-axis direction through the front and rear moving module 105 and inserts the motor of the camera module under test.

[0037] likeFigure 5 As shown, the side pushing module 103 is located on the right side of the carrier module 101, corresponding to the opening at the right end of the accommodating chamber, and is used for adjusting the position of the camera module to be tested in the X-axis direction. The side pushing module 103 comprises a fixed pin 9, a side pushing head 10, a fixed shaft 11, a connecting part 12, a bearing limiting block 13, a baffle 14, a fixed slide rod 15, a front fixed seat 16, a rear fixed seat 17, a fixed part 18 and a first bearing 19.

[0038] The fixed part 18 is located on the right side of the platform 3 and is fixed on the carrier base 30. The side away from the platform 3 is provided with a recess, and the recess is provided with the first bearing 19, and the axis of the first bearing 19 is parallel to the Z-axis. The fixed shaft 11 is arranged along the Z-axis direction and located in the guide groove along the X-axis direction provided on the top of the fixed part 18. The lower end of the fixed shaft 11 is connected with the first bearing 19, and the upper end of the fixed shaft 11 is connected with the side pushing head 10 through the connecting part 12. The side pushing head 10 is fixed on the left end of the end of the connecting part 12 facing the camera module to be tested, and corresponds to the position of the opening at the right end of the accommodating chamber, and is used for pushing the right end of the camera module to be tested to the left along the X-axis.

[0039] The fixed shaft 11 is provided with a through hole along the X-axis direction, and the fixed pin 9 passes through the through hole to limit the fixed shaft 11 on the fixed part. The fixed shaft 11 can move along the X-axis direction of the fixed pin 9, but cannot move in the Y and Z-axis directions. The first spring is sleeved on the fixed pin 9 and is arranged between the fixed shaft 11 and the left end of the fixed part 18. When the fixed shaft 11 moves from right to left along the X-axis and approaches the left end of the fixed part 18, the first spring is compressed. The through hole is connected with the fixed pin 9 of different heights to adjust the positioning of the side pushing head 10 in the Z-axis direction.

[0040] The fixed slide rod 15, the front fixed seat 16 and the rear fixed seat 17 are all located on the right side of the fixed part 18, and the connection relationship is that the two fixed slide rods 15 are arranged along the Y-axis direction, the two ends of the fixed slide rod 15 are fixed on the front fixed seat 16 and the rear fixed seat 17 respectively, and the baffle 14 is further arranged between the two fixed slide rods 15. The bearing limiting block 13 is arranged on the two fixed slide rods 15 and can move along the fixed slide rod 15 in the Y-axis direction. The left end of the bearing limiting block 13 is provided with a protrusion. The second spring is sleeved on the two fixed slide rods 15 and is arranged between the front fixed seat 16 and the bearing limiting block 13. When the bearing limiting block 13 moves forward along the Y-axis and approaches the front fixed seat 16, the second spring is compressed.

[0041] The front and rear moving module 105 can push the bearing limiting block 13 to move along the fixed slide rod 15 in the Y-axis direction from rear to front. The protruding initial position of the bearing limiting block 13 is behind the first bearing 19 and does not contact the first bearing 19. When the bearing limiting block 13 moves from rear to front, the bearing limiting block 13 abuts against the first bearing 19, pushes the first bearing 19 to drive the connecting part 12 and the side pushing head 10 to move along the X-axis direction from right to left through the fixed shaft 11, thereby pushing the camera module to be tested to move along the X-axis direction from right to left, and realizing the positioning of the camera module to be tested in the X-axis direction. After the front and rear moving module 105 removes the pushing of the bearing limiting block 13, the bearing limiting block 13 is reset under the elastic force of the second spring, and the bearing limiting block 13 removes the pushing force on the first bearing 19, so that the first bearing 19, the fixed shaft 11 and the side pushing head 10 are reset under the elastic force of the first spring.

[0042] As shown in Figure 6 The downward pressing module 104 moves along the Y and Z axes through the front and rear moving module 105, and is used for pressing the camera module to be tested downward to realize the positioning of the camera module to be tested in the Z-axis direction. The downward pressing module 104 includes a downward pressing base 43, a customized pressing head 22, a pressing head connecting block 23, a pressing head sliding block 24, a second bearing 25, a micro guide rail 26, a guide rail sliding block 27, a fixed block 28 and a guide rod 29 with a third spring. The downward pressing base 43 is connected with the front and rear moving module 105, and the front and rear moving module 105 makes the downward pressing base 43 move along the Y axis.

[0043] The fixed block 28 is fixed on the downward pressing base 43, and the micro guide rail 26 is arranged on the fixed block 28 in the Z-axis direction. The customized pressing head 22 is fixed on the pressing head connecting block 23 through a screw, the pressing head connecting block 23 is fixed on the pressing head sliding block 24 through a bolt, the pressing head sliding block 24 is fixed on the guide rail sliding block 27 through a screw, and the guide rail sliding block 27 can move up and down along the micro guide rail 26.

[0044] Two guide rods 29 with third springs are arranged at the left and right ends of the pressing head sliding block 24 respectively. The upper end of the guide rod 29 penetrates out of the pressing head sliding block 24 and is provided with a positioning hole, and the guide rod 29 can move up and down along the Z axis in the positioning hole. The lower end of the guide rod 29 is fixed on the downward pressing base 43. The end of the guide rod 29 penetrating out of the pressing head sliding block 24 is provided with a first limiting piece for preventing the guide rod 29 from being separated downward from the pressing head sliding block 24. The third spring sleeved on the guide rod 29 is arranged between the pressing head sliding block 24 and the downward pressing base 43, and the third spring is always in a compressed state.

[0045] The second bearing 25 is arranged on the top of the pressure head slider 24, and the axis of the second bearing 25 is parallel to the X axis. The second bearing 25 is driven by the force acting downward along the Z axis, so that the pressure head slider 24 moves downward along the micro guide rail 26, and the customized pressure head 22 is driven to move downward by the pressure head connecting block 23, so as to press the camera module to be tested. At the same time, the downward movement of the pressure head slider 24 makes the upper end of the guide rod 29 protrude out of the positioning hole, and the third spring is compressed. After the force acting on the second bearing 25 is removed, the pressure head slider 24 moves upward under the elastic force of the third spring, and drives the customized pressure head 22 to move upward, thereby releasing the limitation on the camera module to be tested.

[0046] As shown in Figure 7 , 8 , the front and rear moving module 105 includes a downward pressing base limiting block 31, a needle mold sliding base limiting block 32, a first linear rail 33, an inclined sliding block fixing seat 34, a cylinder joint 35, a cylinder fixing seat 36, a cylinder 37, an external joint 38, a second linear rail 39, a cylinder limiting block 40, a middle limiting block 41, a needle mold sliding seat 42, a pull rod 44, a left side pushing connecting block 45, a needle mold limiting block 46, a third linear rail 47, a middle pulling block 48, a right side pushing connecting block 49, a side pushing rod 50, a side pushing block 51, a spring block 52, an inclined sliding block 53 and a limiting guide column 54. The first linear rail 33, the second linear rail 39 and the third linear rail 47 are arranged along the Y axis, and the first sliding block, the second sliding block and the third sliding block are arranged on the first linear rail 33, the second linear rail 39 and the third linear rail 47 respectively.

[0047] The cylinder 37 is fixed on the rear end of the carrier base 30 through the cylinder fixing seat 36, and the external joint 38 is fixed on the cylinder 37. The external joint 38 is externally connected with a gas pipe to control the driving rod of the cylinder 37 to move forward and backward.

[0048] The rear end of the inclined sliding block fixing seat 34 is connected with the driving rod of the cylinder 37 through the cylinder joint 35, and the front end of the inclined sliding block fixing seat 34 is connected with the cylinder limiting block 40 through bolts. The middle of the carrier base 30 is provided with a sliding groove along the Y axis direction, and the cylinder limiting block 40 is arranged in the sliding groove. The inclined sliding block fixing seat 34 can slide forward and backward along the Y axis direction under the driving of the driving rod of the cylinder 37. The middle limiting block 41 is fixed on the front end of the sliding groove through bolts and positioning pins, and the function of the middle limiting block 41 is to limit the maximum displacement of the forward movement of the inclined sliding block fixing seat 34.

[0049] As shown in Figure 7 , two inclined sliding blocks 53 are connected with the inclined sliding block fixing seat 34. The inclined sliding block 53 is composed of a horizontal part and a vertical part connected perpendicularly. The lower end of the vertical part is fixed on the upper end surface of the inclined sliding block fixing seat 34 through bolts, and the horizontal part faces the front end of the carrier base 30. The front end of the horizontal part is inclined, and the inclination is inclined downward from front to back. The inclination is used to abut against the second bearing 25 of the downward pressing module 104.

[0050] As shown in Figure 8As shown, two second rails 39 are fixed on the carrier base 30 by bolts and located on the left and right sides of the sliding groove, and the inclined slide block fixing seat 34 is located above the second rails 39. The second slides on the left and right second rails 39 are connected with the left and right needle die sliding seats 42 respectively by bolts, the needle die sliding seat 42 is fixed on the lower end of the inclined slide block fixing seat 34 by bolts, and the inclined slide block fixing seat 34 moves back and forth along the Y-axis direction to drive the needle die sliding seat 42 to move back and forth.

[0051] The fixed part 8 of the needle die module 102 is connected to the position corresponding to the motor of the camera module to be tested at the front end of the needle die sliding seat 42. The needle die sliding seat 42 is provided with a side push rod 50 along the Y-axis direction, and the position of the side push rod 50 corresponds to the position of the bearing limiting block 13 of the side push module 103. The rear end of the side push rod 50 is connected with the needle die sliding seat 42 by its own thread, and the front end of the side push rod 50 is used to push the bearing limiting block 13 on the side push module 103 when the needle die sliding seat 42 moves forward, thereby providing a force for the forward movement of the bearing limiting block 13.

[0052] The needle die sliding seat limiting block 32 is fixed on the carrier base 30 by bolts and used to limit the maximum displacement of the forward movement of the needle die sliding seat 42. The needle die limiting block 46 is arranged at the position corresponding to the needle die sliding seat limiting block 32 at the front end of the needle die sliding seat 42. The fourth spring and the fifth spring are arranged at the positions corresponding to the rear end of the needle die sliding seat limiting block 32 and the front end of the needle die limiting block 46 respectively. When the needle die limiting block 46 abuts against the needle die sliding seat limiting block 32, the needle die sliding seat limiting block 32 limits the needle die sliding seat 42 from continuing to move forward, and the compression of the fourth spring and the fifth spring can offset the pushing force of the cylinder 37.

[0053] Two third rails 47 are arranged on the left and right needle die sliding seats 42 respectively, and the positions of the third rails 47 correspond to the positions of the rear end openings of the accommodation chambers of the carrier modules 101. The rear end of the side push block 51 is fixed on the third slide of the rail 47 through the elastic block 52, and the front end of the side push block 51 is used to abut against the rear end of the camera module to be tested to push the camera module to be tested to realize the positioning of the camera module to be tested along the Y-axis. Two middle tension blocks 48 are arranged at the rear ends of the two third rails 47 respectively and fixed on the upper surfaces of the two needle die sliding seats 42 by bolts. The middle tension block 48 is provided with a guide hole along the Y-axis direction.

[0054] The limiting guide column 54 with the sixth spring is arranged along the Y-axis. The front end of the limiting guide column 54 is fixed with the elastic block 52 through the thread, the rear end of the limiting guide column 54 penetrates through the guide hole of the middle tension block 48, and the limiting guide column 54 can move back and forth in the guide hole. The end of the limiting guide column 54 penetrating out of the middle tension block 48 is provided with a second limiting part, and the second limiting part limits the limiting guide column 54 from moving out of the guide hole. The sixth spring is sleeved on the limiting guide column 54 and arranged between the middle tension block 48 and the elastic block 52, and the sixth spring is always in a compressed state.

[0055] The left and right first line rails 33 are fixedly installed on the carrier base 30 and are respectively located at the left side of the left end second line rail 39 and the right side of the right end second line rail 39. Figure 9 As shown in the figure, the lower pressing base 43 is composed of a left end support, a right end support and an upper end plate fixedly connected to the top of the left end support and the right end support, the left end support and the right end support of the lower pressing base 43 are fixedly connected to the first sliding blocks of the left and right first line rails 33, the upper end plate of the lower pressing base 43 is located above the side pushing block 51, and the upper end plate of the lower pressing base 43 is used to be connected with the lower pressing module 104.

[0056] The rear ends of the left end support and the right end support of the lower pressing base 43 are movably connected with the two needle mold sliding seats 42 through the pull rods 44 provided with the seventh springs, and the specific connection manner is that the left end and the right end of the two needle mold sliding seats 42 are respectively fixedly provided with the left side pushing connecting block 45 and the right side pushing connecting block 49, the left side pushing connecting block 45 and the right side pushing connecting block 49 are both provided with through holes in the Y-axis direction, the pull rods 44 are arranged in the Y-axis direction, the front ends of the two pull rods 44 are fixedly connected to the rear ends of the left end support and the right end support of the lower pressing base 43 through the threads of the pull rods 44, the rear ends of the two pull rods 44 pass through the through holes of the left side pushing connecting block 45 and the right side pushing connecting block 49 respectively, the pull rods 44 can move forward and backward in the guide holes, and the end portions of the pull rods 44 passing out of the through holes are provided with third limiting pieces for preventing the pull rods 44 from being separated from the through holes when moving forward, the seventh springs are sleeved outside the pull rods 44, the two seventh springs are arranged between the left side pushing connecting block 45 and the left end support and between the right side pushing connecting block 49 and the right end support respectively, and the seventh springs are always in a compressed state.

[0057] The front of the left and right first line rails 33 is respectively provided with a lower pressing base limiting block 31, the lower pressing base limiting block 31 is fixedly connected to the carrier base 30 through bolts, and the function of the lower pressing base limiting block 31 is to limit the maximum displacement of the forward movement of the lower pressing base 43.

[0058] The working principle of the micro motor extension test positioning module provided by the application is as follows:

[0059] During the test, the product to be tested is placed in the accommodating chamber of the carrier 3, the positioning module 100 is started, the preliminary positioning front and rear moving module 105 is restored to the initial position, the cylinder 37 drives the rod to move forward, the needle mold sliding seat 42 is driven to move forward through the inclined sliding block fixing seat 34, the side pushing rod 50, the side pushing block 51, the lower pressing base 43 and the inclined sliding block fixing seat 34 are synchronously moved forward.

[0060] The side pushing rod 50 pushes the bearing limiting block 13 on the side pushing module 103 forward, the protruding part of the bearing limiting block 13 abuts against the first bearing 19, the first bearing 19 is pushed to drive the side pushing head 10 to push the test product leftward along the X axis, the positioning of the test product in the X direction is realized, and the bearing limiting block 13 is compressed while moving forward, and the first spring on the fixed slide rod 15 is compressed.

[0061] The cylinder 37 continues to push forward, the left and right needle mold sliding seats 42 and the side pushing blocks 51 thereon continue to move forward, the lower pressing base 43 is stationary because it is blocked by the lower pressing base limiting blocks 31, the left and right needle mold sliding seats 42 drive the left side pushing connecting block 45 and the right side pushing connecting block 49 to move forward respectively, so that the seventh spring and the pull rod 44 are stretched out of the guide holes of the left side pushing connecting block 45 and the right side pushing connecting block 49. Until the two needle mold limiting blocks 46 at the front ends of the two needle mold sliding seats 42 abut against the needle mold sliding seat limiting blocks 32, and in the process, the two side pushing blocks 51 move forward to push the test product to move along the Y axis from back to front, the positioning in the Y direction is realized, that is, the positioning in the X and Y directions is completed.

[0062] The cylinder 37 continues to push forward, because the two needle mold limiting blocks 46 at the front ends of the needle mold sliding seats 42 abut against the needle mold sliding seat limiting blocks 32, the fourth spring and the fifth spring are continuously compressed, the elastic force of the fourth spring and the fifth spring offsets the pushing force of the cylinder 37 moving forward, so that the two side pushing blocks 51 remain stationary, and at the same time, the middle tension block 48 moves forward with the needle mold sliding seat 42 to compress the sixth spring sleeved on the limiting guide column 54, and the rear end of the limiting guide column 54 stretches out along the guide hole on the middle tension block 48.

[0063] In the process of moving forward of the needle mold sliding seat 42, the inclined sliding block fixing seat 34 and the inclined sliding block 53 thereon are moved forward, the lower pressing base 43 and the side pushing block 51 remain stationary, and the positioning in the X and Y directions is completed, the inclined surface provided at the front end of the horizontal part of the inclined sliding block 53 is in contact with the second bearing 25 of the lower pressing module 104, with the inclined sliding block 53 moving forward, the inclined surface presses down the second bearing 25, that is, the second bearing 25 slides downward under the action of the inclined surface of the inclined sliding block 53, drives the lower pressing module 104 to move downward, the lower pressing head 24 presses down to make the upper end of the guide rod 29 stretch out of the positioning hole, and the third spring sleeved on the guide rod 29 is compressed, until the custom-made pressing head 22 presses down the product, so that the positioning in the Z axis direction is completed.

[0064] When the three-direction positioning is completed, the cylinder 37 continues to push forward for a certain distance, the three-direction compression springs continue to be compressed and sleeved on the seventh spring on the pull rod 44, the third spring on the guide rod 29, and the sixth spring on the limiting guide column 54, and meanwhile drive the needle mold module 102 to continue to move forward for a certain distance, the fixed probe 4 on the needle mold module 102 is accurately inserted into the test product to perform the electrification test, and after all the above actions are completed, the distance measuring module 140 is started to test the extension distance of the product.

[0065] After the test is completed, the cylinder 37 retreats, the fixed probe 4 on the needle mold module 102 is separated from the product, the inclined sliding block 53 moves backward, the Z-axis direction downward pressing module 104 moves upward to reset under the action of the third spring, the two side pushing blocks 51 in the Y-axis direction move backward, the side pushing rod 50 in the X-axis direction moves backward to drive the bearing limiting block protrusion to move backward, the first bearing 19 drives the side pushing head 10 to move right to reset under the action of the first spring, and after all the components are reset, the product is taken out, and the whole test process is completed.

[0066] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A positioning module for micro motor telescopic test, characterized in that, The positioning module comprises a carrier base, a carrier module, a needle mold module, a side push module and a front-back moving module; The carrier module and the side push module are installed on the carrier base, and the side push module is located at the right side of the carrier module; the front end and the left end of the upper end surface of the carrier module are respectively provided with an X-axis limiting part and a Y-axis limiting part; the left direction is the -X direction, the back direction is the +Y direction, and the front direction is the -Y direction; the product to be tested is placed in the space surrounded by the X-axis limiting part and the Y-axis limiting part; The front-back moving module comprises a cylinder fixed on the carrier base, a needle mold sliding seat in sliding connection with the carrier base, a side push rod and a side push block provided on the needle mold sliding seat; the needle mold module is provided on the needle mold sliding seat; the needle mold sliding seat moves forward along the Y-axis under the driving of the cylinder, and drives the side push rod, the side push block and the needle mold module to move forward; The positioning module is further provided with a downward pressing module; the downward pressing module comprises a downward pressing base, a customized pressing head, a pressing head sliding block, a second bearing, a micro guide rail, a fixed block and a guide rod; the downward pressing base is in sliding connection with the carrier base; the front-back moving module moves the downward pressing base forward and backward along the Y-axis; The micro guide rail is provided on the downward pressing base along the Z-axis direction through the fixed block; the customized pressing head moves up and down along the micro guide rail through the pressing head sliding block; the guide rod passes through the pressing head sliding block and is provided with a positioning hole at the upper end; the guide rod can move up and down in the positioning hole; the lower end of the guide rod is fixed on the downward pressing base; the end of the guide rod passing out is provided with a first limiting part; a third spring sleeved on the guide rod is arranged between the pressing head sliding block and the downward pressing base sliding block; and the third spring is always in a compressed state; The second bearing is arranged at the top of the pressing head sliding block; the axis of the second bearing is parallel to the X-axis; the front-back moving module further comprises an inclined sliding block which moves forward and backward along the Y-axis under the driving of the cylinder; the inclined sliding block is provided with an inclined surface for abutting against the second bearing; the inclined surface is inclined downward from front to back; During the process, the side push rod drives the product to be tested to move left along the X-axis by the side push module, and the product to be tested is limited by the Y-axis limiting part, so as to realize the positioning of the product to be tested in the X-axis direction; then, the side push block drives the product to be tested to move forward along the Y-axis, and the product to be tested is limited by the X-axis limiting part, so as to realize the positioning of the product to be tested in the Y-axis direction; then, the second bearing is subjected to the force of the front-back moving module downward along the Z-axis, so that the pressing head sliding block drives the customized pressing head to move downward along the micro guide rail, so as to press the product to be tested; until the needle mold module moves forward and inserts into the motor of the product to be tested, so that the lens of the product to be tested is telescopic.

2. The positioning module for the micro motor extension test according to claim 1, wherein, The side push module comprises a side push head, a fixed shaft, a bearing limiting block, a fixed sliding rod, a fixed part and a first bearing; the fixed part is fixed on the carrier base; the fixed shaft is arranged along the Z-axis direction and located in the guide groove arranged along the X-axis direction of the fixed part; the lower end of the fixed shaft is connected with the first bearing, and the upper end of the fixed shaft is connected with the side push head; The fixed sliding rod is arranged on the carrier base along the Y-axis direction and is provided with a protruding bearing limiting block at the left end, which can move along the fixed sliding rod; the side push rod drives the bearing limiting block to move forward, so that the protrusion of the bearing limiting block drives the first bearing to move left along the X-axis, and drives the side push head to move left to drive the product to be tested to move left.

3. The positioning module for the micro motor extension test according to claim 1, wherein, The rear end of the pressing base is connected with a pull rod, the needle mold sliding base is fixed with a side pushing connecting block, the rear end of the pull rod passes through the side pushing connecting block and is provided with a through hole in the Y axis direction and is movable forward and backward in the through hole, the pull rod passing end is provided with a third limiting piece, the seventh spring sleeved on the pull rod is arranged between the side pushing connecting block and the pressing base, and the seventh spring is always in a compressed state.

4. The positioning module for the micro motor extension test according to claim 1, wherein, The front and back moving module further comprises a pressing base limiting block, the pressing base limiting block is provided with a rotatable bolt in the Y axis direction, the distance between the rotatable bolt and the pressing base is adjusted by rotating the rotatable bolt, so that the maximum displacement of the pressing base in the Y axis direction is adjusted.

5. The positioning module for the micro motor extension test according to claim 1, wherein, The side pushing block is slidably connected with the needle mold sliding base, the rear end of the side pushing block is connected with a limiting guide column, the needle mold sliding base is fixed with a middle pulling block provided with a guide hole in the Y axis direction, the rear end of the limiting guide column passes through the guide hole and is movable forward and backward in the guide hole, the passing end of the limiting guide column is provided with a second limiting piece, the sixth spring sleeved on the limiting guide column is arranged between the middle pulling block and the side pushing block, and the sixth spring is always in a compressed state.

6. The positioning module for the extension test of micro motor according to any one of claims 1-5, characterized in that, The front and back moving module further comprises a needle mold limiting block, the front end of the needle mold sliding base is provided with a needle mold sliding base limiting block; the needle mold sliding base limiting block is used for limiting the maximum displacement of the forward movement of the needle mold sliding base; the rear end of the needle mold sliding base limiting block and the front end of the needle mold limiting block are respectively provided with a fourth spring and a fifth spring.

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