An encoder test fixture

Abstract

This invention provides an encoder testing fixture, including a mounting base, a drive motor, a driving gear, and multiple driven gears. The drive motor is disposed on the side of the mounting base. The driving gear is rotatably mounted within the mounting base and driven by the drive motor. The multiple driven gears are disposed on the mounting base along the circumference of the driving gear and mesh with the driving gear. The side of the mounting base away from the drive motor is used to mount multiple encoders. A transition plate is provided on the mounting base, and multiple couplings are rotatably mounted on the transition plate. The shafts of the multiple driven gears are connected to the shafts of the multiple encoders one-to-one through the multiple couplings. This invention simplifies the structure of the testing fixture and makes it easy to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of encoder testing, in particular to an encoder testing fixture. Background Technique

[0002] An encoder is a device that encodes signals or data and converts them into signal forms that can be used for communication, transmission, and storage. In some application scenarios of devices, multiple encoders are required to work simultaneously. However, before leaving the factory, the encoder testing is usually carried out independently for each encoder, so the linkage problems generated when multiple encoders work simultaneously cannot be reproduced. In this case, it is necessary to simulate the test of multiple encoders working simultaneously before leaving the factory, and a fixture that can test multiple encoders simultaneously needs to be designed.

[0003] The utility model with the publication number CN216283612U discloses an encoder detection device, which includes a fixing frame. A plurality of encoder clamping devices are arranged on the left side of the fixing frame, and each encoder clamping device clamps and fixes an encoder. A driving wheel is arranged on the right side of the fixing frame, and a driven wheel is meshed around the driving wheel. The driven wheels are distributed in a circular pattern outside the driving wheel. The number of driven wheels is the same as the number of encoder clamping devices and their positions correspond one by one. Although the detection device of this prior art can detect multiple encoders simultaneously, the structure of the detection device is relatively complex and the test operation is more cumbersome. Content of the Utility Model

[0004] The purpose of the utility model is to provide an encoder testing fixture to solve the defects in the prior art, realizing the simplification of the structure of the testing fixture and convenient operation.

[0005] To achieve the above purpose, the utility model provides an encoder testing fixture, which includes a mounting base, a driving motor, a driving gear, and a plurality of driven gears. The driving motor is arranged on the side surface of the mounting base. The driving gear is rotatably arranged in the mounting base and is drivingly connected to the driving motor. The plurality of driven gears are arranged on the mounting base along the circumferential direction of the driving gear and are meshed with the driving gear. The side surface of the mounting base away from the driving motor is used for mounting a plurality of encoders. A transition plate is arranged on the mounting base, and a plurality of couplings are rotatably mounted on the transition plate. The rotating shafts of the plurality of driven gears and the rotating shafts of the plurality of encoders are connected in one-to-one correspondence through the plurality of couplings.

[0006] In this invention, by setting a drive motor, the driving gear connected to the drive motor rotates, and multiple driven gears meshing around the driving gear can rotate synchronously. Since the shafts of the driven gears are connected to the shafts of the encoders one by one through couplings, the shafts of multiple encoders can be driven to rotate. This allows for advance testing of whether multiple encoders interfere with each other when working simultaneously, reducing after-sales costs. By setting a transition plate on the base and mounting multiple couplings on the transition plate, it is only necessary to connect the shafts of multiple driven gears to one end of multiple couplings one by one, and then directly connect the shafts of multiple encoders to the other end of multiple couplings. This achieves the transmission of torque from the drive motor, making the operation simple and convenient. Furthermore, the transition plate serves as a mounting support, improving the stability of the testing process.

[0007] Optionally, the mounting base includes a base plate, a first mounting plate, and a second mounting plate. The first mounting plate and the second mounting plate are arranged parallel to each other on the top surface of the base plate. The first mounting plate is used to mount the drive motor, and the second mounting plate is used to mount a plurality of encoders. The transition plate is arranged parallel to each other between the first mounting plate and the second mounting plate. The driving gear and the plurality of driven gears are all arranged at intervals between the transition plate and the first mounting plate.

[0008] In this utility model, the first mounting plate, the second mounting plate, and the transition plate all serve as mounting supports. By mounting the drive motor on the first mounting plate, the encoder on the second mounting plate, the coupling on the transition plate, and the drive gear and multiple driven gears between the first mounting plate and the transition plate, a modular design for the entire device is achieved, avoiding the integration of multiple structures together and preventing difficulties in maintenance and disassembly.

[0009] Optionally, the top surface of the base plate has multiple sets of through slots spaced parallel to each other. Each set of through slots includes a first long slot and a second long slot. A first fixing bolt can be inserted downward in the first long slot, and the protruding end of the first fixing bolt is used to be threaded to a first threaded hole on the worktable. A second fixing bolt can be inserted upward in the second long slot. The bottom of the first mounting plate, the second mounting plate, and the transition plate all have multiple second threaded holes. The protruding end of the second fixing bolt can be threaded to the corresponding second threaded hole.

[0010] In this invention, by opening multiple first long slots on the base plate, first fixing bolts passing through the first long slots and threaded into the first threaded holes are used to fix the base plate, ensuring the stability of the mounting base during testing. Simultaneously, the fixed position of the mounting base on the worktable can be flexibly adjusted according to the relative position of the first threaded holes and the first long slots. By opening multiple second long slots on the base plate, second fixing bolts passing through the second long slots and threaded into the second threaded holes are used to fix the first mounting plate, the second mounting plate, and the transition plate. This also allows for the disassembly of the first mounting plate, the second mounting plate, and the transition plate, facilitating maintenance and replacement, as well as mass production of individual standard plates. Furthermore, the spacing between the first mounting plate, the second mounting plate, and the transition plate can be reasonably adjusted according to the connection position of the second threaded holes and the second long slots to meet testing requirements in different scenarios.

[0011] Optionally, the longitudinal section of the second long groove is a "convex" structure, and the head of the second fixing bolt can be sunk upward into the interior of the second long groove.

[0012] In this utility model, by setting the second long groove as a "convex" structure that is wide at the bottom and narrow at the top, when the second fixing bolt passes through the second long groove from the lower right to the top and is connected to the corresponding second threaded hole, the bottom surface of the head end of the second fixing bolt is higher than the lowest point of the second long groove, thus avoiding the head end of the second fixing bolt protruding from the worktable surface and affecting the assembly when the mounting base is fixed on the worktable surface.

[0013] Optionally, the drive motor is threadedly connected to the threaded hole on the first mounting plate via a connecting bolt, and the drive shaft of the drive motor passes through the side of the first mounting plate.

[0014] In this invention, the drive motor can be detachably fixed to the first mounting plate by connecting bolts, which facilitates the maintenance and replacement of the drive motor.

[0015] Optionally, the second mounting plate has multiple mounting through holes corresponding to the positions of the multiple encoders. The positions of the multiple mounting through holes correspond one-to-one with the positions of the threaded holes on the encoders. Fixing bolts can be inserted into the mounting through holes, and the protruding ends of the fixing bolts can be threadedly connected to the corresponding threaded holes on the encoders.

[0016] In this invention, the encoder can be fixed to the second mounting plate by means of fixing bolts and mounting through holes and encoder threaded holes. By setting the position and number of mounting through holes, encoders of different sizes and quantities can be installed.

[0017] Optionally, bearings are fixedly provided on both the first mounting plate and the transition plate at the position corresponding to the gear shaft of the driven gear, and the two ends of the gear shaft of the driven gear are rotatably connected to the bearings on the first mounting plate and the transition plate, respectively.

[0018] In this invention, by fixing bearings on the first mounting plate and the transition plate, and making the gear shafts at both ends of the driven gear rotatably connected to the corresponding bearings, the smoothness of the driven gear rotation can be improved.

[0019] Beneficial effects:

[0020] 1. By setting up a drive motor, the driving gear connected to the drive motor rotates, and multiple driven gears meshing around the driving gear can rotate synchronously. Since the shafts of the driven gears are connected to the shafts of the encoders one by one through couplings, the shafts of multiple encoders can be driven to rotate. This allows for advance testing of whether multiple encoders interfere with each other when working simultaneously, reducing after-sales costs.

[0021] 2. By setting a transition plate on the base and mounting multiple couplings on the transition plate, the torque of the drive motor can be transmitted simply by connecting the shafts of multiple driven gears to one end of multiple couplings, and then directly connecting the shafts of multiple encoders to the other end of multiple couplings. The operation is simple and convenient, and the transition plate also serves as a mounting support, improving the stability of the testing process. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an encoder testing fixture disclosed in this utility model;

[0024] Figure 2 This is a front view of an encoder testing fixture disclosed in this utility model;

[0025] Figure 3 This is a bottom view of an encoder testing fixture disclosed in this utility model.

[0026] Figure label:

[0027] 1. Mounting base; 11. Transition plate; 12. Base plate; 13. First mounting plate; 14. Second mounting plate; 15. First long slot; 16. Second long slot; 17. Bearing; 2. Drive motor; 3. Drive gear; 4. Driven gear; 5. Coupling; 6. Encoder.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0031] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] See Figure 1 An encoder testing fixture according to an embodiment of the present invention includes a mounting base 1, a drive motor 2, a drive gear 3, and a plurality of driven gears 4. The drive motor 2 is disposed on the side of the mounting base 1. The drive gear 3 is rotatably disposed within the mounting base 1 and driven and connected to the drive motor 2. The plurality of driven gears 4 are disposed on the mounting base 1 along the circumference of the drive gear 3 and mesh with the drive gear 3. The side of the mounting base 1 away from the drive motor 2 is used to mount a plurality of encoders 6. A transition plate 11 is provided on the mounting base 1. A plurality of couplings 5 ​​are rotatably mounted on the transition plate 11. The rotating shafts of the plurality of driven gears 4 are connected to the rotating shafts of the plurality of encoders 6 in a one-to-one correspondence through the plurality of couplings 5.

[0033] In this invention, by setting a drive motor 2, the driving gear 3 connected to the drive motor 2 rotates, and multiple driven gears 4 meshing around the driving gear 3 can rotate synchronously. Since the shafts of the driven gears 4 are connected to the shafts of the encoders 6 one by one through couplings 5, the shafts of multiple encoders 6 can be driven to rotate. This allows for advance testing of whether multiple encoders 6 will interfere with each other when working simultaneously, reducing after-sales costs. By setting a transition plate 11 on the base and installing multiple couplings 5 ​​on the transition plate 11, it is only necessary to connect the shafts of multiple driven gears 4 to one end of multiple couplings 5 ​​one by one, and then directly connect the shafts of multiple encoders 6 to the other end of multiple couplings 5 ​​to achieve the transmission of torque to the drive motor 2. The operation is simple and convenient, and the transition plate 11 also serves as a mounting support, improving the stability of the testing process.

[0034] See Figure 2 In some embodiments of this utility model, the mounting base 1 includes a base plate 12, a first mounting plate 13, and a second mounting plate 14. The first mounting plate 13 and the second mounting plate 14 are arranged parallel to each other on the top surface of the base plate 12. The first mounting plate 13 is used to mount the drive motor 2, and the second mounting plate 14 is used to mount a plurality of encoders 6. The transition plate 11 is arranged parallel to each other between the first mounting plate 13 and the second mounting plate 14. The driving gear 3 and a plurality of driven gears 4 are all arranged at intervals between the transition plate 11 and the first mounting plate 13.

[0035] In this utility model, the first mounting plate 13, the second mounting plate 14, and the transition plate 11 all serve as mounting supports. By mounting the drive motor 2 on the first mounting plate 13, the encoder 6 on the second mounting plate 14, the coupling 5 on the transition plate 11, and the drive gear 3 and multiple driven gears 4 between the first mounting plate 13 and the transition plate 11, a modular design for the entire device is achieved, avoiding the integration of multiple structures together and preventing difficulties in maintenance and disassembly.

[0036] See Figure 1 and Figure 3 In some embodiments of this utility model, the top surface of the base plate 12 is provided with multiple sets of through grooves at parallel intervals. Each set of through grooves includes a first long groove 15 and a second long groove 16. A first fixing bolt can be inserted downward in the first long groove 15. The protruding end of the first fixing bolt is used to be threadedly connected to a first threaded hole on the workbench. A second fixing bolt can be inserted upward in the second long groove 16. The bottom of the first mounting plate 13, the second mounting plate 14 and the transition plate 11 are provided with multiple second threaded holes. The protruding end of the second fixing bolt can be threadedly connected to the corresponding second threaded hole.

[0037] In this invention, by opening multiple first long slots 15 on the base plate 12, the first fixing bolts passing through the first long slots 15 and threaded to the first threaded holes are used to fix the base plate 12, ensuring that the mounting base 1 remains stable during testing. Simultaneously, the fixed position of the mounting base 1 on the worktable can be flexibly adjusted according to the relative position of the first threaded holes and the first long slots 15. By opening multiple second long slots 16 on the base plate 12, the second fixing bolts passing through the second long slots 16 and threaded to the second threaded holes are used to fix the first mounting plate 13, the second mounting plate 14, and the transition plate 11. This also allows for the disassembly of the first mounting plate 13, the second mounting plate 14, and the transition plate 11, facilitating maintenance and replacement, as well as mass production of individual standard plates. Furthermore, the spacing between the first mounting plate 13, the second mounting plate 14, and the transition plate 11 can be reasonably adjusted according to the connection position of the second threaded holes and the second long slots 16 to meet testing requirements in different scenarios.

[0038] See Figure 1 and Figure 3 In some embodiments of this utility model, the longitudinal section of the second long groove 16 is a "convex" structure, and the head end of the second fixing bolt can sink upward into the interior of the second long groove 16.

[0039] In this utility model, by setting the second long groove 16 as a "convex" structure that is wide at the bottom and narrow at the top, when the second fixing bolt passes through the second long groove 16 from the lower right to the top and is connected to the corresponding second threaded hole, the bottom surface of the head end of the second fixing bolt is higher than the lowest point of the second long groove 16, thus avoiding the head end of the second fixing bolt protruding from the worktable surface and affecting the assembly when the mounting base 1 is fixed on the worktable surface.

[0040] See Figure 1 In some embodiments of this utility model, the drive motor 2 is threadedly connected to the threaded hole on the first mounting plate 13 by a connecting bolt, and the drive shaft of the drive motor 2 passes through the side of the first mounting plate 13.

[0041] In this invention, the drive motor 2 can be detachably fixed to the first mounting plate 13 by connecting bolts, which facilitates the maintenance and replacement of the drive motor 2.

[0042] See Figure 1 In some embodiments of this utility model, the second mounting plate 14 is provided with multiple mounting through holes corresponding to the positions of multiple encoders 6. The positions of the multiple mounting through holes correspond one-to-one with the positions of the threaded holes on the encoders 6. Fixing bolts can be inserted into the mounting through holes, and the protruding ends of the fixing bolts can be threadedly connected to the corresponding threaded holes on the encoders 6.

[0043] In this utility model, the encoder 6 can be fixed on the second mounting plate 14 by means of fixing bolts and mounting through holes and threaded holes of the encoder 6. By setting the position and number of mounting through holes, encoders 6 of different sizes and numbers can be installed.

[0044] See Figure 1 In some embodiments of this utility model, bearings 17 are fixedly provided on the first mounting plate 13 and the transition plate 11 at the positions corresponding to the gear shaft of the driven gear 4, and the two ends of the gear shaft of the driven gear 4 are rotatably connected to the bearings 17 on the first mounting plate 13 and the transition plate 11, respectively.

[0045] In this utility model, by fixing the bearings 17 on the first mounting plate 13 and the transition plate 11, and making the gear shafts at both ends of the driven gear 4 rotatably connected to the corresponding bearings 17, the smoothness of the rotation of the driven gear 4 can be improved.

[0046] In operation, the drive motor 2 is fixed to the first mounting plate 13 by connecting bolts, and multiple encoders 6 are fixed to the second mounting plate 14 by fixing bolts. By adjusting the connection position of the second fixing bolt and the second long slot 16, the positions of the first mounting plate 13, the second mounting plate 14, and the transition plate 11 on the base plate 12 are adjusted. The drive shaft of the drive motor 2 is connected to the drive gear 3, and multiple driven gears 4 mesh around the drive gear 3. The two ends of the coupling 5 are connected to the rotating shafts of the corresponding driven gears 4 and the rotating shafts of the encoders 6, respectively. By adjusting the connection position of the first fixing bolt and the first long slot 15, the position of the base plate 12 on the worktable is adjusted. When the drive motor 2 is started, the drive gear 3 drives multiple driven gears 4 to rotate at the same speed. The rotation of the driven gears 4 is stably transmitted to the rotating shafts of multiple encoders 6 through the coupling 5, so that the rotating shafts of multiple encoders 6 can rotate stably at the same speed. This achieves the purpose of testing multiple encoders 6 at the same time, avoiding the problem that a single encoder 6 may pass the test before leaving the factory, but multiple encoders 6 may fail when installed and working together in the field, thus saving after-sales costs.

[0047] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. An encoder testing fixture, characterized in that, The device includes a mounting base (1), a drive motor (2), a drive gear (3), and multiple driven gears (4). The drive motor (2) is disposed on the side of the mounting base (1). The drive gear (3) is rotatably disposed in the mounting base (1) and driven and connected to the drive motor (2). Multiple driven gears (4) are disposed on the mounting base (1) along the circumference of the drive gear (3) and mesh with the drive gear (3). The side of the mounting base (1) away from the drive motor (2) is used to mount multiple encoders (6). A transition plate (11) is provided on the mounting base (1). Multiple couplings (5) are rotatably mounted on the transition plate (11). The shafts of the multiple driven gears (4) are connected to the shafts of the multiple encoders (6) one-to-one through the multiple couplings (5).

2. The encoder testing fixture according to claim 1, characterized in that, The mounting base (1) includes a base plate (12), a first mounting plate (13) and a second mounting plate (14). The first mounting plate (13) and the second mounting plate (14) are arranged parallel to each other on the top surface of the base plate (12). The first mounting plate (13) is used to install the drive motor (2), and the second mounting plate (14) is used to install a plurality of encoders (6). The transition plate (11) is arranged parallel to each other between the first mounting plate (13) and the second mounting plate (14). The driving gear (3) and a plurality of driven gears (4) are all arranged at intervals between the transition plate (11) and the first mounting plate (13).

3. The encoder test fixture according to claim 2, characterized in that, The top surface of the base plate (12) has multiple sets of through slots spaced parallel to each other. Each set of through slots includes a first long slot (15) and a second long slot (16). A first fixing bolt can be inserted downward in the first long slot (15). The protruding end of the first fixing bolt is used to be threaded to the first threaded hole on the worktable. A second fixing bolt can be inserted upward in the second long slot (16). The bottom of the first mounting plate (13), the second mounting plate (14), and the transition plate (11) are all provided with multiple second threaded holes. The protruding end of the second fixing bolt can be threaded to the corresponding second threaded hole.

4. The encoder testing fixture according to claim 3, characterized in that, The longitudinal section of the second long groove (16) is a "convex" structure, and the head of the second fixing bolt can sink upward into the interior of the second long groove (16).

5. An encoder testing fixture according to claim 2, characterized in that, The drive motor (2) is threadedly connected to the threaded hole on the first mounting plate (13) by connecting bolts.

6. An encoder testing fixture according to claim 2, characterized in that, The second mounting plate (14) has multiple mounting through holes corresponding to the positions of multiple encoders (6). The positions of the multiple mounting through holes correspond one-to-one with the positions of the threaded holes on the encoders (6). Fixing bolts can be inserted into the mounting through holes, and the protruding ends of the fixing bolts can be threadedly connected to the threaded holes on the corresponding encoders (6).

7. An encoder testing fixture according to claim 2, characterized in that, Bearings (17) are fixedly provided on the first mounting plate (13) and the transition plate (11) at the position corresponding to the gear shaft of the driven gear (4). The two ends of the gear shaft of the driven gear (4) are rotatably connected to the bearings (17) on the first mounting plate (13) and the transition plate (11), respectively.

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