Clamping jig for micro motor pin power-on test

Abstract

The utility model discloses a clamping jig for a micro motor pin power-on test. The clamping jig comprises a fixed interface assembly, a sliding interface assembly, a motor sliding assembly and a pushing mechanism. The motor sliding assembly is arranged between the fixed interface assembly and the sliding interface assembly; and the pins of the motor are electrically connected with test equipment under the pushing of the pushing mechanism. According to the clamping jig for the micro motor pin power-on test, the motor is installed in the motor sliding seat; the pushing mechanism is used for sliding the interface assembly to drive the motor sliding assembly to clamp the motor; the spring ejector pin is connected with a pin of the motor; the motor can be quickly and accurately fixed and electrically connected; and the power-on test efficiency of the motor pin is improved.

Description

Technical Field

[0001] The utility model relates to a fixture for a micro motor, in particular to a clamping fixture for power-on testing of pins of a micro motor for detecting the micro motor. Background Art

[0002] Auto focus (AF) utilizes the principle of light reflection of an object to be photographed. The light reflected by the object to be photographed passes through a lens and forms an image on an image sensor. A computer obtains the object distance of the object to be photographed by processing the image generated by the image sensor, and then automatically slides the lens to complete focusing according to the object distance. In order to compensate for image blurring caused by jitter of a terminal device during exposure, an optical image stabilization (OIS) technology is proposed. Jitter detection is performed by a gyroscope, and then the entire lens is translated or rotated in the opposite direction by an OIS motor, thereby compensating for image blurring caused by jitter of the terminal device during exposure. As a method for implementing the above AF and OIS, a motor assembly can be used to drive the lens to slide or rotate.

[0003] In the existing bilateral pin motor, since there are pin feet on both surfaces, all pin feet need to be connected to test terminals during testing to test the performance of the motor. The traditional fixture is divided into multiple steps of operation, and the position of the motor is fixed. First, a mechanism is used to press the motor to prevent it from sliding. If the motor is not fixed, the contact position of the thimble will be incorrect. Then, another thimble mounting mechanism is pushed to hold the pin feet of the motor from both sides for testing. Such operation is cumbersome and requires a sequence. If the operation sequence is incorrect, there will be a risk of damaging the test thimble and injuring the product after the thimble is offset. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a clamping fixture for power-on testing of pins of a micro motor with a novel and unique structure, convenient use, and capable of more efficient detection and lower failure rate; the specific technical solution is as follows:

[0005] A clamping fixture for power-on testing of pins of a micro motor includes a fixed interface component, a sliding interface component, a motor sliding component, and a pushing mechanism; the motor sliding component is arranged between the fixed interface component and the sliding interface component; under the push of the pushing mechanism, electrical connection between the pins of the motor and a test device is achieved.

[0006] Further, the motor sliding component is electrically connected to the fixed interface component and the sliding interface component through spring thimbles.

[0007] Further, it further includes a slide rail, and the motor sliding seat and the sliding interface component are respectively fixedly connected to two sliders of the slide rail.

[0008] Further, a motor sliding seat is provided at the top of the motor sliding assembly; the motor sliding seat is provided with a motor accommodation groove; the motor accommodation groove is a through groove, and its length is adapted to the distance between the pins on both sides of the motor; its width is adapted to the width of the motor.

[0009] Further, a limiting structure for restricting the distal position of the sliding interface assembly is provided on the slide rail.

[0010] Further, the pushing mechanism is provided with a limiting structure for restricting the proximal position of the sliding interface assembly.

[0011] The clamping fixture for the energization test of the pins of the micro motor of the present utility model installs the motor in the motor sliding seat; uses the sliding interface assembly of the pushing mechanism to drive the motor sliding assembly to clamp the motor; and connects the spring ejector pin to the pins of the motor; it can quickly and accurately realize the fixation and electrical connection of the motor; improving the efficiency of the energization test of the motor pins. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the clamping fixture for the energization test of the pins of the micro motor of the present utility model;

[0013] Figure 2 is Figure 1 a schematic exploded view of the structure;

[0014] Figure 3 is a schematic structural diagram of the motor sliding seat.

[0015] In the figure: 1. Base; 11. Screw; 12. Slide rail; 13. Limiting boss; 2. Fixed interface assembly; 21. Fixed interface mounting seat; 22. Fixed ejector pin seat; 3. Motor sliding assembly; 31. Motor sliding seat; 311. Spring accommodation groove; 312. Positioning pin; 313. Pin retraction groove; 314. Positioning hole; 315. Limiting table; 32. Ejector pin guide plate; 33. Guide rod; 34. Return spring; 4. Sliding interface assembly; 41. Sliding interface mounting seat; 42. Sliding ejector pin seat; 43. Slide block; 5. Cylinder assembly; 51. Cylinder; 511. Limiting block; 6. Motor. Detailed Embodiments

[0016] The present utility model will be described more comprehensively below using embodiments. The present utility model can be embodied in many different forms and should not be construed as limited to the exemplary embodiments described herein.

[0017] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right", etc. can be used here to describe the relationship of one element or feature shown in the figure with respect to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations during the use or operation of the device. For example, if the device in the figure is inverted, the element described as being "below" other elements or features will be positioned "above" other elements or features. Thus, the exemplary term "lower" can encompass both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0018] The jig for power-on testing of the pins of the micro motor 6 in this embodiment includes a fixed interface component 2, a sliding interface component 4, a motor sliding seat 31, and a pushing mechanism; wherein, the motor sliding seat 31 is arranged between the fixed interface component 2 and the sliding interface component 4; under the push of the pushing mechanism, the pins of the motor 6 are electrically connected to a test device (using the prior art, not shown in the figure). Compared with the structure of fixing the motor 6 to be tested and the jig clamping the motor 6 to be tested by sliding from both sides in turn, in the jig of this embodiment, by setting one end pin connection interface as a fixed position and the motor 6 and the other end pin connection interface as a sliding structure, and guiding through the slide rail 12, only one set of pushing mechanism is needed to synchronously align the electrical connection points of the pins on both sides of the motor 6 with the interfaces, and the operation method is simpler and the accuracy is easier to guarantee.

[0019] The fixed interface component 2 and the sliding interface component 4 can adopt reed pieces and probes; they can also adopt spring-loaded pins to abut against the pins of the motor 6 to achieve electrical connection. The spring-loaded pins are smaller in size than the reed piece contacts and are convenient to install; compared with ordinary probes, they can be telescopic, which is beneficial to reducing damage to the pins. The jig for power-on testing of the pins of the micro motor 6 in this embodiment is used to quickly connect the signals of the detection instrument with the motor 6 to be tested; the detection instrument is an existing device and will not be elaborated here!

[0020] As Figure 1 、 Figure 2 As shown, the fixed interface component 2 includes a fixed pin seat 22 and a fixed interface mounting seat 21. The fixed pin seat 22 is embedded with spring-loaded pins corresponding to the pins of the motor 6. The fixed interface mounting seat 21 is fixed on the base 1 by screws 11; the fixed pin seat 22 is arranged on the fixed interface mounting seat 21; during use, the motor sliding component 3 slides along the slide rail 12 towards the fixed interface component 2 on the left in the figure. Finally, the pins of the motor 6 to be tested abut against the corresponding spring-loaded pins on the fixed interface component 2 to achieve electrical connection.

[0021] The bottom of the fixed thimble seat 22 can be accurately positioned with the top of the fixed interface mounting seat 21 through a dowel pin; and then fixed together with screws 11; ensuring that each spring thimble in the fixed thimble seat 22 is aligned with the pins of the motor 6.

[0022] The pushing mechanism can adopt a linear motion driving mechanism such as a cylinder 51, an electric cylinder or a crank - connecting rod mechanism in the prior art to achieve a linear motion mechanism.

[0023] The motor sliding assembly 3 and the sliding interface assembly 4 can be arranged on the slide rail 12, and the motor sliding seat 31 and the sliding interface mounting seat 41 are both fixedly connected to their respective sliders 43; adopting the same slide rail 12 is beneficial to improving the fitting accuracy.

[0024] The slide rail 12, the fixed interface assembly 2 and the cylinder assembly 5 can be installed on the same base 1, which is beneficial to improving the fitting accuracy.

[0025] As Figure 3 shown, the motor sliding seat 31 is provided with a motor accommodation groove; the motor accommodation groove is a through - groove, the length of which is adapted to the distance between the pins on both sides of the motor 6 to avoid inelastic deformation of the pins after being pressed; the width, that is, the inner wall distance between the two side limiting platforms 315, is adapted to the width of the motor 6; through a reasonable gap, the position offset of the motor 6 in the motor accommodation groove does not affect the electrical connection quality between the spring thimble and the pins.

[0026] Pin relief grooves 313 can also be provided at the positions corresponding to the pins at both ends of the motor accommodation groove; facilitating a quick judgment of the placement direction when placing the motor 6.

[0027] The part of the motor sliding seat 31 in contact with the pins of the motor 6 should be made of insulating material. Positioning holes 314 corresponding to the positioning pins 312 of the motor base can also be provided in the motor accommodation groove to make the positioning of the motor 6 more accurate.

[0028] Positioning pins 312 can also be provided at the left and right ends of the motor sliding seat 31; during installation, the fixed thimble seat 22, the motor sliding seat 31 and the sliding thimble seat 42 are fixed on the same axis through the positioning pins 312; then, the fixing screws 11 between the fixed thimble seat 22 and the fixed interface mounting seat 21 and the fixing screws 11 between the sliding thimble seat 42 and the sliding interface mounting seat 41 are respectively tightened; ensuring the accurate positioning of the thimble and the pins of the motor 6.

[0029] A thimble guide plate 32 can also be provided at the left and right ends of the motor sliding seat 31; the thimble guide plates 32 at both ends are respectively fixed to the left and right ends of the motor sliding seat 31 by screws or other detachable fixing methods. The thimble guide plate 32 is provided with guide through holes corresponding to the spring thimbles on the fixed thimble seat 22 and the sliding thimble seat 42; the guide through holes are in clearance fit with the spring thimbles; when the spring thimbles are pressed, they are kept as straight as possible to avoid damage caused by bending. The thimble guide plate 32 can also be integrally provided with the motor sliding seat 31; the split setting is more conducive to processing and debugging; the processing difficulty is reduced. When set separately, the positioning pins 312 at the left and right ends of the motor sliding seat 31 can also be used for precise positioning of the thimble guide plate 32.

[0030] A return spring 34 can also be provided on the outer walls of the left and right ends of the motor sliding seat 31; the return spring 34 is used to drive the motor sliding assembly 3 away from the fixed interface assembly 2 and the sliding interface assembly 4; or drive the motor sliding assembly 3 closer to the fixed interface assembly 2 and the sliding interface assembly 4; in this way, a single-acting cylinder 51 can be selected; the control air circuit design is simpler.

[0031] To avoid spring bending, the return spring 34 can also be sleeved on the guide rod 33. The guide rod 33 can also replace the slide rail 12 to guide the relative sliding of the fixed interface mounting seat 21 and the sliding interface mounting seat 41.

[0032] Openings can be made on the outer walls of the left and right ends of the motor sliding seat 31 as spring accommodation grooves 311; to accommodate the return spring 34.

[0033] The cylinder 51 and the cylinder 51 fixing bracket form a cylinder assembly 5. The maximum distance when the thimble sliding assembly 4 leaves can be limited by using the position at the rear end of the piston rod stroke and the installation position of the cylinder 51 fixing bracket; the time of the release process is shortened, and the detection efficiency is increased. The slide rail 12 can also be provided with a limit boss 13 as a limit structure to limit the distal position of the sliding interface assembly 4; in this way, the maximum displacement of the thimble sliding assembly 4 to the right in the figure does not completely depend on the maximum stroke of the cylinder 51; during maintenance, even if there are no suitable accessories, choosing a cylinder 51 with a larger stroke does not affect the detection efficiency.

[0034] The position at the front end of the piston rod stroke can be used to limit the position through the installation position of the cylinder assembly 5; to ensure that when the spring thimble abuts against the pin, the pressure is within a reasonable range, and to avoid deformation or excessive wear of the spring thimble caused by excessive extrusion. A limit block 511 can also be provided on the piston rod of the cylinder 51; through the cooperation of the limit block 511 and the limit structure, it is used as a limit structure to limit the proximal position of the sliding interface assembly 4; in this way, the limit no longer depends on the piston rod stroke; the selection range of the cylinder 51 is larger, and it is more convenient for on-site maintenance. The limit block 511 can also be fixed to the piston rod by means of threaded connection, in this way, it is more convenient to adjust the pressure when the spring thimble abuts.

[0035] During operation, the clamping fixture for power-on testing of the pins of the micro motor 6 is in the released state; the piston rod of the air cylinder 51 is in the retracted state; the sliding interface assembly 4 is limited by the limiting boss 13 and is at the distal end. The motor 6 to be tested is placed in the motor receiving groove of the motor sliding seat 31. The piston rod of the air cylinder 51 is extended by controlling the air valve, pushing the sliding interface assembly 4, and the thrust is transmitted to the motor sliding assembly 3 through the return spring 34, finally making the clamping fixture for power-on testing of the pins of the micro motor in the pressed state; the pins on the left side of the motor 6 are in contact with the pins of the fixed thimble seat 22; realizing the electrical connection with the left-side testing equipment; the pins on the right side of the motor 6 are in contact with the pins of the sliding thimble seat 42; realizing the electrical connection with the right-side testing equipment. Among them, if the stroke of the piston rod is relatively long, the limiting block 511 will be in contact with the right side of the limiting boss 13, preventing the piston rod from continuing to extend; avoiding excessive pressure between the pins on both sides of the motor 6 and the spring thimbles. After the testing equipment completes the power-on test of the motor 6, the air cylinder 51 is deflated by controlling the air valve, and the return spring 34 pushes the motor sliding assembly 3 and the push sliding interface assembly 4 to the right until the right side of the sliding interface mounting seat 41 is in contact with the limiting boss 13 and the piston rod is in the retracted state; the motor 6 is taken out; a detection cycle is completed.

[0036] The above example is only used to illustrate the present invention. In addition, there are various different implementation manners, and these implementation manners can be thought of by those skilled in the art after understanding the idea of the present invention. Therefore, they are not listed one by one here.

Claims

1. A clamping fixture for testing the power supply of a micro motor pin, characterized in that: It includes a fixed interface component, a sliding interface component, a motor sliding component and a pushing mechanism; the motor sliding component is arranged between the fixed interface component and the sliding interface component; and the electrical connection between the pins of the motor and the test equipment is achieved under the pushing of the pushing mechanism.

2. The micro motor pin power-on test fixture as claimed in claim 1, characterized in that: The pins of the motor placed in the motor sliding assembly are electrically connected to the fixed interface assembly and the sliding interface assembly through spring ejector pins.

3. The micro motor pin power-on test fixture as claimed in claim 1, characterized in that: It also includes a slide rail, and the motor slide assembly and the slide interface assembly are respectively fixedly connected to two sliding blocks arranged on the slide rail.

4. The micro motor pin power-on test fixture as claimed in claim 1, characterized in that: A motor sliding seat is arranged on the top of the motor sliding assembly; a motor accommodating groove is arranged on the motor sliding seat; the motor accommodating groove is a through groove, the length of which is adapted to the distance between the pins on both sides of the motor; and the width is adapted to the width of the motor.

5. The micro motor pin power-on test fixture as claimed in claim 3, characterized in that: The slide rail is provided with a limiting structure for limiting the distal end position of the sliding interface assembly.

6. The micro motor pin power-on test fixture as claimed in claim 1, characterized in that: The pushing mechanism is provided with a limiting structure for limiting the proximal position of the sliding interface assembly.

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