CN220670578U - Encoder aging test board - Google Patents

Abstract

The utility model discloses an encoder aging test board, which comprises a bottom plate, a motor mounting plate, an encoder fixing plate, a support column, a direct current motor, a flexible coupler, a transfer shaft, a horizontal elbow clamp and a pressing block, wherein the bottom plate, the motor mounting plate and the encoder fixing plate form an integral frame, the direct current motor is a power source for the rotation of an encoder, and the motor rotating shaft is connected with the rotating shaft of the encoder through the flexible coupler so as to realize the transmission of power from the motor to the encoder; the encoder is fixed on the fixed plate through a horizontal elbow clamp and a pressing block; the input cable and the output cable are used for introducing a direct current power supply from the outside of the incubator to supply power to all direct current motors and encoders to be detected, and outputting output signals of all encoders to be detected to the outside of the incubator through the serial interface cable, so that the upper computer can monitor the signals simultaneously. The aging test bench can be used for simultaneously carrying out aging test on a plurality of sets of encoders, has the characteristics of high reliability, convenience and high efficiency in disassembly and assembly, high test efficiency and the like, and can be used for remarkably improving the batch production aging test efficiency of the encoders.

Description

Encoder aging test board

Technical Field

The utility model belongs to the technical field of tests and tests of encoders, in particular to an encoder aging test bed which is particularly suitable for functional tests in encoder batch aging tests.

Background

The encoder is an integrated rotation and test device for converting high-precision shaft angle into digital value, and is widely applied to high-precision servo system motion control units of ships, navigation, numerical control machine tools and the like. Because of the strict requirements of the structural characteristics and the application modes of the encoder, the encoder cannot realize mass production in a production test link, the aging test of the encoder can only adopt a manual mode, after the product reaches the ambient temperature, the encoder is manually taken out from an incubator, then the encoder is singly electrified and the functional test is realized by adopting a manual rotation mode of the rotating shaft of the encoder, under the environment of high Wen Laolian, the manual test operation is inconvenient, the operation of the test process is carried out while the test is carried out, and the product is often taken out from the incubator for testing, so that the problems of lower test efficiency, irregular test method and the like exist, and the improvement of the batch production efficiency of the encoder is seriously influenced. With the recent significant increase in encoder demand, conventional manual single-piece burn-in testing has failed to accommodate the requirements of mass-produced delivery supplies.

Disclosure of Invention

The utility model aims to provide an encoder aging test board, which improves encoder aging test efficiency, reduces repeated work of testers and shortens product delivery period.

The technical solution for realizing the purpose of the utility model is as follows: an encoder aging test board comprises an encoder fixing plate, a motor mounting plate, a bottom plate, a support column, a flexible coupling and a direct current motor;

the encoder fixing plate, the motor mounting plate and the bottom plate are sequentially arranged at intervals in parallel from top to bottom, and the encoder fixing plate and the motor mounting plate and the bottom plate are connected and fixed through a plurality of struts; the upper surface of the encoder fixing plate is detachably provided with a plurality of encoders to be tested through a fixing device, the lower surface of the motor mounting plate is provided with a plurality of direct current motors for providing power sources for the aging test table, a plurality of flexible couplings are arranged between the encoder fixing plate and the motor mounting plate, and the direct current motors, the encoders to be tested and the flexible couplings are in one-to-one correspondence; the output shaft of each direct current motor penetrates through the motor mounting plate and then is connected with one end of a corresponding flexible coupling, and the other end of the flexible coupling penetrates through the encoder fixing plate and is connected with the corresponding rotating shaft of the encoder to be tested.

Further, each encoder to be tested corresponds to a group of fixing devices, each group of fixing devices comprises a pair of horizontal elbow clamps and a pair of pressing blocks, the pair of horizontal elbow clamps are arranged on the encoder fixing plate, the pair of pressing blocks are respectively arranged above the encoder brackets on the left side and the right side of the encoder to be tested, and the pair of horizontal elbow clamps respectively generate downward force on the pair of pressing blocks to fix the encoder to be tested.

Further, the test board also comprises a switching shaft, and for the half-space shaft encoder, the other end of the flexible coupling is connected with the rotating shaft of the encoder to be tested through the switching shaft.

Furthermore, the adapter shaft is a stainless steel shaft, and the sizes of the upper end installation shaft and the lower end installation shaft can be adjusted according to actual requirements, so that the adapter shaft is convenient to adapt to products with different specifications.

Further, the top end of the transfer shaft exceeds the encoder fixing plate by a certain length after being installed, and the transfer shaft is locked by the half-space shaft encoder.

Further, the encoder fixing plate, the motor mounting plate and the bottom plate are all rectangular aluminum plates.

Further, the support posts are in threaded connection with the encoder fixing plate, the motor mounting plate and the bottom plate.

Further, the pressing block is an aluminum block with a thin middle and thick two ends.

Further, a nut is arranged on the pressing end of the horizontal elbow clamp, and the pressing force of the horizontal elbow clamp is adjusted by adjusting the position of the nut.

Compared with the prior art, the utility model has the remarkable advantages that:

1) Adopt direct current motor + flexible shaft coupling + switching axle's connected mode to and horizontal elbow presss from both sides the fastening mode of briquetting and realize quick assembly disassembly, reduced loaded down with trivial details installation step, reduce the repetitive work of tester, improve efficiency of software testing, and can effectively protect the product outward appearance, the bolt produces near the product mounting hole when avoiding the product dismouting and scratches wearing and tearing etc..

2) The utility model adopts a plurality of groups of small motors as power sources to carry out aging test, has the advantages of high efficiency, low cost, light overall weight and the like, and can simultaneously test a plurality of encoders to meet the requirement of batch production test.

3) The mode of adding the adapter shaft by using the flexible coupling can adjust the eccentricity to a certain extent and meet the testing requirements of encoders of different models. The test quantity of the encoders summarized by the module aging test board can be expanded according to actual requirements, and the expansion cost and difficulty are low.

The utility model is described in further detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of an encoder burn-in test stand in one embodiment.

Figure 2 is a schematic view of a horizontal toggle clamp in one embodiment.

In the figure, the mark is that a 1-encoder fixing plate, a 2-motor mounting plate, a 3-bottom plate, a 4-pillar, a 5-switching shaft, a 6-flexible coupling, a 7-direct current motor, an 8-pressing block and a 9-horizontal elbow clamp

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In one embodiment, in conjunction with fig. 1, an encoder burn-in test stand is provided, comprising an encoder fixing plate 1, a motor mounting plate 2, a bottom plate 3, a support column 4, a flexible coupling 6, a direct current motor 7, and input and output cables;

the encoder fixing plate 1, the motor mounting plate 2 and the bottom plate 3 are sequentially arranged at intervals in parallel from top to bottom, and the encoder fixing plate 1 and the motor mounting plate 2 and the bottom plate 3 are connected and fixed through a plurality of struts 4; the upper surface of the encoder fixing plate 1 is detachably provided with a plurality of encoders to be tested through a fixing device, the lower surface of the motor mounting plate 2 is provided with a plurality of direct current motors 7 used for providing power sources for the aging test table, a plurality of flexible couplings 6 are arranged between the encoder fixing plate 1 and the motor mounting plate 2, and the direct current motors 7, the encoders to be tested and the flexible couplings 6 are in one-to-one correspondence; the output shaft of each direct current motor 7 penetrates through the motor mounting plate 2 and then is connected with one end of a corresponding flexible coupling 6, and the other end of the flexible coupling 6 penetrates through the encoder fixing plate 1 and is connected with the corresponding rotating shaft of the encoder to be tested. The input cable and the output cable are used for introducing a direct current power supply from the outside of the incubator to supply power to all direct current motors and encoders to be detected, and outputting output signals of all encoders to be detected to the outside of the incubator through the serial interface cable, so that the upper computer can monitor the signals simultaneously.

Here, the direct current motor 7 is externally connected with a power supply, and different rotating speeds can be selected according to actual requirements so as to meet actual testing requirements. Independent work among the plurality of direct current motors is not interfered with each other, even if damage does not influence the test tasks of other encoders. The motor rotating shaft is connected with the rotating shaft of the encoder through a flexible coupling 6; the flexible coupling 6 has the function of compensating axial, radial and angular deviations of the upper shaft and the lower shaft (the axial, radial and angular deviations between the rotating shaft of the direct current motor and the rotating shaft of the encoder can be flexibly adjusted in real time, the damage to the encoder or the motor to be tested caused by the inconsistent axial leads after rigid connection caused by assembly errors and the like is avoided, the reliability of the test is improved), thereby ensuring that the rotating shaft of the encoder receives disturbance of axial and radial force during batch aging, ensuring stable and reliable operation of the encoder under the condition of high Wen Laolian and improving the reliability and stability of batch production test.

Preferably, in some embodiments, the support posts 4 are screwed to the encoder fixing plate 1, the motor mounting plate 2, and the base plate 3. The pillar 4 is an aluminum bar with threaded holes at the upper end and the lower end, and the flatness of the aging test bench is ensured by flattening the upper end surface and the lower end surface. The post of other external structure is not limited to this.

Preferably, in some embodiments, the encoder fixing plate 1, the motor mounting plate 2 and the bottom plate 3 are rectangular aluminum plates, and a plurality of groups of counter bores are formed on the rectangular aluminum plates for connecting the support posts 4. The position of the post after being fixed does not influence the installation, connection and work of the subsequent flexible coupling.

Preferably, in some embodiments, the bottom plate 3 is hollowed out in the middle, so as to reduce the weight of the whole device.

Further, in some embodiments, each encoder to be tested corresponds to a set of fixing devices, each set of fixing devices includes a pair of horizontal elbow clamps 8 and a pair of pressing blocks 9 mounted on an encoder fixing plate, the pair of pressing blocks 9 are respectively disposed above encoder supports on the left side and the right side of the encoder to be tested, and the pair of horizontal elbow clamps 8 respectively generate a pressing force on the pair of pressing blocks 9 to fix the encoder to be tested.

Here, the fixation of the encoders on both sides is achieved by pressing the press blocks. The clamping mode does not need to screw a shell flange of the encoder, so that the operation efficiency of the encoder during installation, fixation, disassembly and replacement is improved.

Preferably, the encoders to be tested and the horizontal elbow clamps are uniformly distributed, and one horizontal elbow clamp is shared between every two encoders to be tested. In some embodiments, the encoders to be tested are uniformly distributed along a straight line, and besides the shared horizontal elbow clamps, two sides of the encoders to be tested at two ends are respectively provided with one horizontal elbow clamp.

Here, by way of example, in some embodiments, the compacts are aluminum blocks with thin middle and thick ends. The other compacts may be used without limitation.

Here, in some embodiments, with reference to fig. 2, a nut is provided on the pressing end of the horizontal elbow clamp, and the pressing force of the horizontal elbow clamp is adjusted by adjusting the position of the nut. The closing pressure can be adjusted by adjusting the length of the end screw.

After the encoder is assembled, a pressing block is arranged above the encoder mounting bracket, and the pressing force of the horizontal elbow clamp is adjusted by adjusting the nuts 1 and 2 of the horizontal elbow clamp up and down as shown in fig. 2. After the pressing block is adjusted to a proper pressing force, the horizontal elbow clamp is pressed down, so that the pressing block presses the encoder bracket, and the purpose of fixing is realized. And after the test is finished, the horizontal elbow clamp is loosened, so that quick assembly and disassembly are realized.

Further, in some embodiments, the test bench further includes a transfer shaft 5, and for a half-space encoder, the other end of the flexible coupling 6 is connected to the rotating shaft of the encoder to be tested through the transfer shaft 5.

Here, for the half-shaft encoder, power is transmitted through the adapter shaft.

Here, the dimensions of the adapter shaft 5 can be adjusted according to the encoder to be tested and the flexible coupling 6 to be used.

Here, in some embodiments, the adapter shaft 5 is a stainless steel shaft with higher coaxiality of the upper end and the lower end, one end of the adapter shaft is used for connecting the encoder, the other end of the adapter shaft is locked by using a flexible coupling, and the top end of the adapter shaft is installed to exceed the encoder fixing plate by a certain length, so that the adapter shaft is conveniently locked by the half-space shaft encoder.

The single use process of the present utility model is specifically described below.

Taking a certain type of semi-hollow shaft encoder as an example, a direct current motor 7 is fixed after being placed in a mounting hole for positioning by using a bolt, and after the mounting is completed, the motor mounting plate 2 is connected with 8 struts 4 in the middle of the bottom plate 3 by using the bolt for fixing, and at the moment, the output shaft of the direct current motor 7 is positioned at the upper end. After the upper and lower positions of the flexible coupling 6 are adjusted, one end of the flexible coupling 6 is locked and fixed with the output shaft of the direct current motor 7, and then the adapter shaft 5 with proper size is fixed with the flexible coupling 6. The encoder mounting plate 1 and the motor mounting plate 2 are connected and fixed by 8 struts 4 through bolts. And then the encoder is arranged at the upper end of the adapter shaft 5, and the encoder fixing bracket is attached to the encoder mounting plate 1. After the horizontal toggle clamp 8 is fixed between the two encoders by using bolts, the pressing block 9 is arranged between the two encoders to press the encoder bracket. The nut 1 and the nut 2 are adjusted for a plurality of times, so that the horizontal elbow clamp 8 has proper compression force, the horizontal elbow clamp 8 is pressed down in sequence, and the encoder and the adapter shaft 5 are locked after the encoder is fixed through the pressing block 9. So far, each part is connected and fastened, and after each direct current motor 7 is powered on, aging test can be carried out according to the requirement. After the test is finished, the encoder and the adapter shaft 5 are stopped to be locked, and the horizontal elbow clamp 8 is loosened to realize quick disassembly.

According to the utility model, the damage of mechanical errors to the encoder is eliminated by the transmission mode of the direct current motor, the flexible coupler and the switching shaft, and different encoders can be tested by replacing the switching shaft, so that the application range of the encoder is wide. The mode of using horizontal elbow clamp + briquetting replaces traditional bolt installation, avoids tightening the bolt and produces the mar to the product surface when having improved the installation effectiveness of test. The direct current motor is used as a power source to replace manual single test, so that the test efficiency is improved, the whole-course live test in the high-low temperature box can be realized, the test data can be collected in real time, and the performance management and control of products are improved. The utility model can realize the efficiency of batch production high-efficiency aging test and improve the test reliability of products

The foregoing has outlined and described the basic principles, features, and advantages of the present utility model. It will be understood by those skilled in the art that the foregoing embodiments are not intended to limit the utility model, and the above embodiments and descriptions are meant to be illustrative only of the principles of the utility model, and that various modifications, equivalent substitutions, improvements, etc. may be made within the spirit and scope of the utility model without departing from the spirit and scope of the utility model.

Claims (10)

1. The encoder aging test board is characterized by comprising an encoder fixing plate, a motor mounting plate, a bottom plate, a support column, a flexible coupling and a direct current motor;

the encoder fixing plate, the motor mounting plate and the bottom plate are sequentially arranged at intervals in parallel from top to bottom, and the encoder fixing plate and the motor mounting plate and the bottom plate are connected and fixed through a plurality of struts; the upper surface of the encoder fixing plate is detachably provided with a plurality of encoders to be tested through a fixing device, the lower surface of the motor mounting plate is provided with a plurality of direct current motors for providing power sources for the aging test table, a plurality of flexible couplings are arranged between the encoder fixing plate and the motor mounting plate, and the direct current motors, the encoders to be tested and the flexible couplings are in one-to-one correspondence; the output shaft of each direct current motor penetrates through the motor mounting plate and then is connected with one end of a corresponding flexible coupling, and the other end of the flexible coupling penetrates through the encoder fixing plate and is connected with the corresponding rotating shaft of the encoder to be tested.

2. The encoder aging test stand according to claim 1, wherein each encoder to be tested corresponds to a group of fixing devices, each group of fixing devices comprises a pair of horizontal elbow clamps and a pair of pressing blocks, the pair of horizontal elbow clamps are arranged above encoder brackets on the left side and the right side of the encoder to be tested, and the pair of horizontal elbow clamps respectively generate downward force on the pair of pressing blocks to fix the encoder to be tested.

3. The encoder aging test stand of claim 1, further comprising a transfer shaft, wherein for a half-space encoder, the other end of the flexible coupling is connected to a rotating shaft of the encoder to be tested through the transfer shaft.

4. The encoder aging test stand according to claim 3, wherein the adapter shaft is a stainless steel shaft, and the size of the upper and lower end mounting shafts can be adjusted according to actual requirements.

5. The encoder aging test stand according to claim 3, wherein the adapter shaft is mounted with a top end extending beyond the encoder fixing plate by a certain length, so as to lock the adapter shaft by the half-space encoder.

6. The encoder aging test stand of claim 1, wherein the encoder fixing plate, the motor mounting plate, and the bottom plate are all rectangular aluminum plates.

7. The encoder aging test stand of claim 1, wherein the support posts are threaded with the encoder fixing plate, the motor mounting plate, and the base plate.

8. The encoder burn-in test stand of claim 2, wherein the compact is a middle thin, two-end thick aluminum block.

9. The encoder aging test stand according to claim 2, wherein a nut is provided on the pressing end of the horizontal elbow clamp, and the pressing force of the horizontal elbow clamp is adjusted by adjusting the position of the nut.

10. The encoder burn-in test stand of claim 1, wherein the base plate is hollowed out in the middle.