Encoder assembly precision detection device and detection method

Abstract

The application discloses an encoder assembly precision detection device and a detection method, wherein the encoder assembly precision detection device comprises a mounting unit for mounting a reading head connected with a circuit board and a rotating assembly for driving a code disc to rotate at a predetermined rotating speed relative to the reading head; in the embodiment of the application, the above-mentioned encoder assembly precision detection device and detection method can be used for reading head welding quality detection of a single-reading-head encoder; the detection shaft is driven to rotate by a power unit, the code disc is controlled to rotate at a predetermined rotating speed, the detection accuracy and detection efficiency are greatly improved, the labor cost is saved, mounting racks for mounting the reading heads are arranged on both sides of the support seat, the protruding height of the two mounting parts and the relative positions of the code disc support and the reading head are set, the code disc welding quality of relative encoders and / or absolute encoders can be detected at the same time, and the applicability and practicability of the detection device are further improved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an encoder assembly accuracy testing device and testing method. Background Technology

[0002] Minimally invasive surgery refers to surgical procedures performed inside the human body using modern medical instruments and equipment such as laparoscopes and thoracoscopes. Compared to traditional surgical methods, minimally invasive surgery has advantages such as less trauma, less pain, and faster recovery. However, the limitations imposed by the incision size on minimally invasive instruments significantly increase the difficulty of the procedure, and the fatigue and tremors experienced by the surgeon during prolonged operations are amplified. These factors have become key constraints on the development of minimally invasive surgical techniques. With the development of robotics technology, a new technology in the field of minimally invasive medicine—minimally invasive surgical robot technology—has emerged, overcoming these shortcomings while inheriting the advantages.

[0003] A typical minimally invasive surgical robot consists of a surgeon's console, a patient-side trolley, and a display device. The surgeon operates the input device on the surgeon's console and transmits the input to the patient-side trolley, which is connected to remotely operated surgical instruments. Based on the surgeon's input at the console, the remotely operated surgical instruments are actuated at the patient-side trolley to perform surgery on the patient, thus establishing a master-slave control relationship between the surgeon's console and the surgical instruments on the patient-side trolley. In surgical robots, the encoder is a crucial component; the assembly quality (accuracy) of its reader head directly affects the robot's performance.

[0004] Chinese patent application CN114264232A discloses a split-mount encoder with multiple sensor heads that are mutually angled in planar shape. It can mutually correct coaxiality runout, reduce the impact of code disk installation eccentricity, shaft wobble, and temperature changes on the encoder, eliminate the strict limitations on the installation and debugging of individual sensor heads, measure coaxiality runout to detect eccentricity problems and send eccentricity warning information, and improve the encoder's angle measurement accuracy.

[0005] The above scheme has multiple read heads installed in the encoder, which is costly. Moreover, multiple signal inputs place high demands on the control algorithm. On the other hand, multi-read head encoders have greater limitations on the application scenarios and cannot be used in scenarios with limited space. Therefore, single-read head encoders are usually used in surgical robots.

[0006] The assembly of encoder read heads currently relies mainly on manual labor. After the read head is assembled, it is connected to a special testing device, and the code disk is rotated by hand to analyze the assembly accuracy of the encoder read head. On the one hand, the above testing method cannot guarantee the stability of the code disk rotation speed, that is, it cannot guarantee the accuracy of the test. On the other hand, it can only test one encoder at a time, resulting in low testing efficiency. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides an encoder assembly accuracy testing device and method that are low in cost, high in detection accuracy, and high in detection efficiency.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0009] This application provides an encoder assembly accuracy detection device, comprising:

[0010] Mounting unit for mounting the read head to the connecting circuit board;

[0011] A rotating assembly is used to drive the code disk to rotate relative to the reader head at a predetermined speed;

[0012] The rotating assembly includes a detection shaft rotatably mounted on a mounting frame and a power unit connected to the detection shaft and used to drive the detection shaft to rotate.

[0013] The circuit board is provided with an interface for connecting to the detection equipment. The code disk is fixedly mounted on the detection shaft and is coaxial with the detection shaft. The reading head is positioned corresponding to the code disk in the axial direction of the detection shaft.

[0014] Further specifying the encoder assembly accuracy detection device described above, the mounting unit includes:

[0015] The mounting bracket is fixedly mounted on the base.

[0016] A support base is fixedly disposed within the mounting bracket for mounting the circuit board;

[0017] The detection shaft is rotatably connected to the support bearing.

[0018] Further specifying the encoder assembly accuracy detection device described above, the mounting unit further includes:

[0019] The mounting bracket is fixedly mounted on the support base, and a mounting part for mounting the circuit board is fixedly provided on the end face away from the support base;

[0020] The code disk bracket is fixedly mounted on the detection shaft and is fixedly connected to the code disk.

[0021] Further specifying the encoder assembly accuracy detection device, the support base is provided with a support protrusion for positioning the mounting bracket, and the mounting bracket is provided with a snap groove for engaging with the support protrusion.

[0022] Further defining the encoder assembly accuracy detection device described above, the support base is disposed through the mounting bracket, and mounting brackets are respectively fixedly disposed on the two end faces of the support base on the axial direction of the detection shaft;

[0023] The detection shaft passes through the support base, and code disk brackets are fixedly installed on the detection shaft at corresponding positions of the two mounting brackets.

[0024] Further specifying, in the aforementioned encoder assembly accuracy detection device, the read head and the interface portion are located on the same side of the circuit board;

[0025] The mounting part connected to the circuit board protrudes more axially on the detection shaft than the interface part axially on the detection shaft. The code disk is mounted on the code disk bracket and maintains a predetermined distance from the reading head.

[0026] Further specifying, in the aforementioned encoder assembly accuracy detection device, the read head and the interface portion are respectively located on both sides of the circuit board;

[0027] The mounting part connected to the circuit board protrudes more axially on the detection shaft than the reading head, and the code disk is mounted on the code disk bracket and maintains a predetermined distance from the reading head.

[0028] Further specifying the encoder assembly accuracy detection device described above, the code disk bracket includes:

[0029] The main body of the bracket is fitted onto the detection shaft;

[0030] The mounting protrusion is fixedly mounted on the main body of the bracket.

[0031] The code disk is fitted onto the mounting protrusion and is bonded to the main body of the bracket.

[0032] Further specifying the encoder assembly accuracy detection device described above, the power unit includes:

[0033] The motor bracket is fixedly mounted on the base.

[0034] The test motor is fixedly mounted on the motor bracket.

[0035] A coupling is disposed between the detection motor and the detection shaft, and is connected to the power end of the detection motor and the detection shaft respectively.

[0036] This application also provides an encoder assembly accuracy detection method, used in the encoder assembly accuracy detection device described in any of the above claims, comprising:

[0037] The circuit board for soldering the read head is mounted on the mounting unit;

[0038] The rotating component drives the code disk to rotate relative to the reader head at a predetermined speed;

[0039] The testing equipment acquires and outputs the assembly quality information of the read head;

[0040] The circuit board of the soldered read head is removed from the mounting unit, and the circuit board of the soldered read head is classified based on the assembly quality information of the read head;

[0041] The assembly quality information of the read head is compared with the preset standard. If it meets the preset standard, the circuit board of the read head is placed in the qualified area; otherwise, it is placed in the unqualified area.

[0042] The present invention has at least the following beneficial effects:

[0043] 1. It can detect the welding quality of the read head of a single read head encoder (defects such as eccentricity and shaft deflection). The power unit drives the detection shaft to rotate the code disk and controls the code disk to execute a predetermined speed, which greatly improves the detection accuracy and efficiency and saves labor costs.

[0044] 2. By rotating the code disk to detect and adjust the assembly of the reading head, the installation accuracy of the code disk on the detection shaft is easier to control (coaxial with the detection shaft), thus ensuring that the installation quality of the code disk meets expectations and making the detection more accurate;

[0045] 3. Mounting brackets for mounting the reading heads are set on both sides of the support base, which allows the reading heads on two encoders to be tested at the same time, greatly improving the testing efficiency;

[0046] 4. By setting the protrusion height of the mounting parts on both sides and the relative positions of the code disk bracket and the read head, the welding quality of the read heads of relative encoders and / or absolute encoders can be detected simultaneously. This means that different types of encoders can be tested, further improving the applicability and practicality of the testing device. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the encoder assembly accuracy detection device according to an embodiment of this application;

[0048] Figure 2 This is a cross-sectional view of the encoder assembly accuracy detection device according to an embodiment of this application;

[0049] Figure 3 This is an enlarged structural diagram of the "code disk 430" portion in the encoder assembly accuracy detection device according to an embodiment of this application;

[0050] Figure 4This is a schematic diagram of the structure of the encoder 400 in the encoder assembly accuracy detection device of this application embodiment;

[0051] Figure 5 This is a schematic diagram of the structure of the "mounting unit 300" near the "rotating component" in the encoder assembly accuracy detection device of this application embodiment;

[0052] Figure 6 This is an exploded view of the structure of the "encoder mounting unit 300" in the encoder assembly accuracy detection device of this application embodiment;

[0053] Figure 7 This is a schematic diagram of the structure of the "encoder mounting unit 300" on the side away from the "rotating component" in the encoder assembly accuracy detection device of this application embodiment;

[0054] Figure 8 This is a schematic diagram of the structure of the "mounting bracket 350" in the encoder assembly accuracy detection device of this application embodiment;

[0055] Figure 9 This is a schematic diagram of the structure of the "support base 320" in the encoder assembly accuracy detection device of this application embodiment;

[0056] Figure 10 This is a schematic diagram of the structure of the "code disc bracket 360" in the encoder assembly accuracy detection device of this application embodiment.

[0057] Figure Labels

[0058] Base-100, Motor bracket-210, Detection motor-220, Coupling-230, Detection shaft-240, Mounting unit-300, Mounting support-310, Support base-320, Abutment plate-321, First support protrusion-322, Rotating part-323, Second support protrusion-324, Locking nut-330, Bearing-340, Mounting bracket-350, Frame body-351, Screw hole-352, Mounting part-353, Clip groove-354, Code disc bracket-360, Bracket body-361, Third support protrusion-362, Mounting protrusion-363, Adhesive groove-364, Encoder-400, Circuit board-410, Reader head-420, Code disc-430, Interface part-440. Detailed Implementation

[0059] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0060] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0061] The encoder assembly accuracy detection device and detection method provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0062] like Figures 1 to 10 As shown, this application embodiment provides an encoder assembly accuracy detection device, including a mounting unit 300 for mounting an encoder 400 and a rotating assembly for driving the code disk 430 to rotate relative to the read head 420.

[0063] The rotating assembly includes a detection shaft 240 rotatably mounted on a mounting frame and a power unit connected to the detection shaft 240 and used to drive the detection shaft 240 to rotate. The mounting unit 300 includes a support base 320 fixedly mounted on a mounting frame.

[0064] The encoder 400 includes a circuit board 410 fixedly mounted on a support base 320, a read head 420 fixedly mounted on the circuit board 410, and a code disk 430 fixedly mounted on a detection shaft 240 and coaxial with the detection shaft 240.

[0065] The reading head 420 is positioned opposite the code disk 430 along the axis of the detection shaft 240.

[0066] In this embodiment, the encoder assembly accuracy detection device described above can detect the welding quality (eccentricity, shaft deflection, etc.) of the read head 420 of a single read head encoder. The power unit drives the detection shaft 240 to rotate the code disk 430 and controls the code disk 430 to execute a predetermined speed, which greatly improves the detection accuracy and efficiency and saves labor costs.

[0067] Understandably, since the read head 420 is soldered onto the circuit board 410 by the user, a testing step is necessary. This device is used to check whether the soldering of the read head 420 onto the circuit board 410 meets the requirements, such as whether the read head 420 is misaligned, causing eccentricity, or misaligned, resulting in non-parallelism, and whether the defects of the read head 420 are within the tolerance range. During testing, it is necessary to connect to dedicated testing equipment provided by the encoder manufacturer, such as... Figure 4 As shown, the encoder 400 also includes an interface 440 fixedly mounted on the circuit board 410. The interface 440 is used to connect to the testing equipment. The testing equipment can obtain the rotation signal of the code disk 430 and analyze it to determine whether the welding of the read head 420 is qualified. For qualified read heads 420, they are removed from the mounting unit and the next one is installed for further testing. If they are unqualified, they need to be resold or repaired.

[0068] It is understandable that the reason for testing and adjusting the assembly of the read head 420 is that the positioning of the code disk 430 is relatively easy, and its installation accuracy on the detection shaft 240 is easier to control (coaxial with the detection shaft 240), which can ensure that the installation quality meets expectations.

[0069] In a preferred embodiment, such as Figure 1 , Figure 2 As shown, it also includes a base 100. The power unit of the rotating component includes a motor bracket 210 fixedly mounted on the base 100. A detection motor 220 is fixedly mounted on the motor bracket 210. The power end of the detection motor 220 is connected to the detection shaft 240 through a coupling 230.

[0070] In this embodiment, the encoder assembly accuracy detection device described above is used. When the detection motor 220 is started, it can drive the detection shaft 240 to rotate through the coupling 230, thereby realizing the rotation of the code disk 430 relative to the reading head 420 at a predetermined speed, and thus realizing the automatic detection of the reading head 420.

[0071] It is understood that the configuration of the power unit is not limited to the one mentioned above. For example, an automatic telescopic device can be used in conjunction with a gear and rack structure to drive the detection shaft 240, or other transmission structures can be used to achieve the transmission between the power end of the detection motor 220 and the detection shaft 240. As long as the control of the detection shaft 240 to rotate at a predetermined speed can be achieved, it will not be elaborated here.

[0072] In a preferred embodiment, such as Figures 1 to 10 As shown, the installation unit 300 includes a mounting bracket 310 fixedly mounted on the base 100, a support base 320 fixedly mounted on the mounting bracket 310, and a detection shaft 240 rotatably connected to the support base 320 via a bearing 340.

[0073] A mounting bracket 350 is fixedly mounted on the support base 320. The circuit board 410 is bolted to the mounting bracket 350. A code disk bracket 360 is fixedly mounted on the detection shaft 240. The code disk 430 is fixedly mounted on the code disk bracket 360. When the detection shaft 240 rotates, it can drive the code disk 430 to rotate through the code disk bracket 360.

[0074] The code disk 430 is positioned opposite to the corresponding reading head 420, thereby enabling the detection of the assembly accuracy of the reading head 420.

[0075] In a preferred embodiment, such as Figure 1 , Figure 2 , Figures 5 to 7 As shown, the support base 320 is disposed through the mounting base 310. Two mounting brackets 350 are provided and are respectively fixedly disposed on the two end faces of the support base 320 on the axial direction of the detection shaft 240. Similarly, the end of the detection shaft 240 away from the detection motor 220 extends to the side of the support base 320 away from the detection motor 220. Two code disk brackets 360 are fixedly disposed on the detection shaft 240 and the two code disk brackets 360 are respectively located at corresponding positions of the two mounting brackets 350. The circuit board 410 and the reading head 420 fixedly disposed on the mounting bracket 350 cooperate with the code disk 430 fixedly disposed on the corresponding code disk bracket 360.

[0076] In this embodiment, the encoder assembly accuracy detection device described above is used, and mounting brackets 350 for mounting the read heads 420 are respectively provided on both sides of the support base 320, so that the read heads 420 on the two encoders 400 can be detected at one time, which greatly improves the detection efficiency.

[0077] It is understandable that the mounting form of the encoder 400 on the support 320 is not limited to the one mentioned above. In order to increase the number of code disks 430 welded and inspected on a single detection shaft 240, multiple code disk brackets 360 can be set on the detection shaft 240, and multiple support bases 320 corresponding to the positions of the code disk brackets 360 can be set on the base 100. Circuit boards 410 and reading heads 420 corresponding to the positions of the code disk brackets 360 can be set on the support bases 320 respectively. In this way, more encoders 400 can be inspected at the same time. However, this setting method requires high precision in the fitting of the device itself and there is a problem of error superposition.

[0078] In a preferred embodiment, such as Figure 2 , Figure 9As shown, the support base 320 includes a rotating part 323 that communicates with the mounting support 310. A bearing 340 connected to the detection shaft 240 is installed inside the rotating part 323. A backing plate 321 is fixedly provided on one side end face of the rotating part 323. A first support protrusion 322 is fixedly provided on the side end face of the backing plate 321 away from the rotating part 323. A second support protrusion 324 is fixedly provided on the side end face of the rotating part 323 away from the backing plate 321.

[0079] like Figure 8 As shown, the mounting bracket 350 includes a frame 351 and a screw hole 352 that is disposed through the frame 351 and used for screw connection with the support base 320. A groove 354 that cooperates with the first support protrusion 322 or the second support protrusion 324 is provided on one side end face of the frame 351. A mounting part 353 for mounting the circuit board 410 is fixedly provided on the side end face of the frame 351 away from the groove 354.

[0080] When the mounting bracket 350 is installed on the support base 320, the mounting bracket 350 is fastened to the first support protrusion 322 or the second support protrusion 324 through the snap groove 354, and then connected to the support base 320 by screws through the screw hole 352.

[0081] It is understandable that the shape of the buckle groove 354 matches the shape of the first support protrusion 322 or the second support protrusion 324. When the first support protrusion 322 or the second support protrusion 324 is annular, the buckle groove 354 is set as a circular cavity. When the first support protrusion 322 or the second support protrusion 324 is prismatic, the buckle groove 354 is set as a prismatic cavity.

[0082] In a preferred embodiment, such as Figure 2 , Figure 10 As shown, the code disk bracket 360 includes a bracket body 361. The bracket body 361 has a mounting protrusion 363 for mounting the code disk 430, a third support protrusion 362 for supporting the code disk 430, and an adhesive groove 364 located between the third support protrusion 362 and the mounting protrusion 363 on its end face away from the bearing 340. Specifically, the code disk 430 is sleeved on the mounting protrusion 363 and abuts against the corresponding third support protrusion 362. Adhesive is poured into the adhesive groove 364 to bond it to the code disk 430.

[0083] A limiting part is provided on the detection shaft 240 at the corresponding position of the code disk bracket 360. The code disk bracket 360 is sleeved on the detection shaft 240 and the end face of the code disk bracket 360 near the bearing 340 abuts against the limiting part at the corresponding position. A locking nut 330 is also threadedly connected on the detection shaft 240 at the corresponding position of the code disk bracket 360. The end face of the code disk bracket 360 away from the bearing 340 abuts against the locking nut 330 at the corresponding position. Through the limiting part and the locking nut 330, the positioning of the code disk bracket 360 on the detection shaft 240 is realized.

[0084] In this embodiment, the encoder assembly accuracy detection device described above is used. The code disk 430 is installed on the detection shaft 240 through the code disk bracket 360. The code disk 430 is directly sleeved on the mounting protrusion 363, which realizes the rapid positioning of the code disk 430. At the same time, it is fixed by adhesive bonding, making the installation of the code disk 430 more convenient.

[0085] In a preferred embodiment, such as Figure 1 , Figure 2 , Figure 5 , Figure 7 As shown, the encoder 400 is divided into relative encoders and absolute encoders based on its structure. The difference between the two lies in the different mounting positions of the interface part 440 on the circuit board 410. In the relative encoder, the read head 420 and the interface part 440 are located on the same side of the circuit board 410; in the absolute encoder, the read head 420 and the interface part 440 are located on opposite sides of the circuit board 410.

[0086] Due to the structural differences between relative encoders and absolute encoders, for relative encoders, a larger distance must be maintained between circuit board 410 and mounting bracket 350 to ensure that interface 440 does not interfere with mounting bracket 350; while for absolute encoders, since the read head 420 and interface 440 are located on opposite sides of circuit board 410, the distance between circuit board 410 and mounting bracket 350 is relatively small, that is, the protrusion height of mounting part 353 corresponding to relative encoder is greater than that of mounting part 353 corresponding to absolute encoder.

[0087] It is understandable that when the protrusion height of the mounting part 353 corresponding to the relative encoder and the absolute encoder is different, in order to ensure that the distance between the code disk 430 and the reader 420 is constant, the relative position of the code disk 430 and the mounting bracket 350 corresponding to the two encoders is different, that is, to ensure that the encoder 400 does not cause structural interference with the mounting bracket 350 itself.

[0088] Specifically, the mounting bracket 350 on the side closer to the detection motor 220 is used to install an absolute encoder. After the code disk 430 is installed on the corresponding code disk bracket 360, the end face of the code disk 430 on the side closer to the detection motor 220 is flush with the end face of the mounting bracket 350 on the side closer to the detection motor 220. That is, the end face of the mounting protrusion 363 on the side closer to the detection motor 220 is flush with the end face of the mounting bracket 350 on the side closer to the detection motor 220. The mounting bracket 350 on the side farther from the detection motor 220 is used to install a relative encoder. After the code disk 430 is installed on the corresponding code disk bracket 360, the end face of the third support protrusion 362 on the code disk bracket 360 on the side farther from the detection motor 220 is flush with the end face of the mounting bracket 350 on the side farther from the detection motor 220. That is, the code disk 430 is located on the side of the mounting bracket 350 farther from the detection motor 220.

[0089] In this embodiment, the encoder assembly accuracy detection device described above is used. By setting the protrusion height of the mounting parts 353 on both sides and the relative positions of the code disk bracket 360 and the mounting frame 350, the welding quality of the reading head 420 of the relative encoder and the absolute encoder can be detected simultaneously. That is, it can be used to detect different types of encoders 400, which further improves the applicability and practicality of the detection device.

[0090] Understandably, if the detection device only detects relative encoders or absolute encoders, the code disk brackets 360 and mounting brackets 350 on both sides can be set to the same structure, thereby enabling the detection of two relative encoders or absolute encoders at one time and improving the detection efficiency of a single type of encoder 400.

[0091] Based on the encoder assembly accuracy detection device described above, this embodiment also provides an encoder assembly accuracy detection method, including:

[0092] S1. The circuit board 410 of the soldering read head 420 is mounted on the support base 320;

[0093] S2. The rotating component drives the code disk 430 to rotate relative to the reading head 420 at a predetermined speed;

[0094] S3. Dedicated testing equipment acquires and outputs assembly quality information from the reader 420;

[0095] S4. The circuit board 410 of the soldered read head 420 is removed from the support 320, and the circuit board 410 of the soldered read head 420 is classified based on the assembly quality information of the read head 420.

[0096] In step S4, the assembly quality information of the read head 420 is compared with the preset standard. If it meets the preset standard, the circuit board 410 of the soldered read head 420 is placed in the qualified area; otherwise, it is placed in the unqualified area.

[0097] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0098] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An encoder assembly accuracy detection device, characterized in that, include: Mounting unit for mounting the read head to the connecting circuit board; A rotating assembly is used to drive the code disk to rotate relative to the reader head at a predetermined speed; The rotating assembly includes a detection shaft rotatably mounted on a mounting frame and a power unit connected to the detection shaft and used to drive the detection shaft to rotate. The circuit board is provided with an interface for connecting the detection equipment. The code disk is fixedly mounted on the detection shaft and is coaxial with the detection shaft. The reading head is positioned corresponding to the code disk in the axial direction of the detection shaft. The installation unit includes: The mounting bracket is fixedly mounted on the base. A support base is fixedly disposed within the mounting bracket for mounting the circuit board; the detection shaft is rotatably connected to the bearing of the support base. The installation unit also includes: The mounting bracket is fixedly mounted on the support base, and a mounting part for mounting the circuit board is fixedly provided on the end face away from the support base; The code disk bracket is fixedly mounted on the detection shaft and fixedly connected to the code disk. The support base is disposed through the mounting bracket, and mounting frames are respectively fixedly installed on the two end faces of the support base on the axially upward side of the detection shaft. The detection shaft passes through the support base, and code disk brackets are fixedly installed on the detection shaft at corresponding positions of the two mounting brackets.

2. The encoder assembly accuracy detection device according to claim 1, characterized in that, The support base is provided with a support protrusion for positioning the mounting bracket, and the mounting bracket is provided with a fastening groove for engaging with the support protrusion.

3. The encoder assembly accuracy detection device according to claim 1, characterized in that, The reader and the interface are located on the same side of the circuit board; The mounting part connected to the circuit board protrudes more axially on the detection shaft than the interface part, and the code disk is mounted on the code disk bracket and maintains a predetermined distance from the reading head.

4. The encoder assembly accuracy detection device according to claim 1, characterized in that, The reader and the interface are located on opposite sides of the circuit board, respectively. The mounting part connected to the circuit board protrudes more axially on the detection shaft than the reading head, and the code disk is mounted on the code disk bracket and maintains a predetermined distance from the reading head.

5. The encoder assembly accuracy detection device according to claim 1, characterized in that, The encoder support includes: The main body of the bracket is fitted onto the detection shaft; The mounting protrusion is fixedly mounted on the main body of the bracket. The code disk is fitted onto the mounting protrusion and is bonded to the main body of the bracket.

6. The encoder assembly accuracy detection device according to claim 1, characterized in that, The power unit includes: The motor bracket is fixedly mounted on the base. The test motor is fixedly mounted on the motor bracket. A coupling is disposed between the detection motor and the detection shaft, and is connected to the power end of the detection motor and the detection shaft respectively.

7. A method for detecting encoder assembly accuracy, characterized in that, The encoder assembly accuracy detection device for any one of claims 1 to 6 comprises: The circuit board for soldering the read head is mounted on the mounting unit; The rotating component drives the code disk to rotate relative to the reader head at a predetermined speed; The testing equipment acquires and outputs the assembly quality information of the read head; The circuit board of the soldered read head is removed from the mounting unit, and the circuit board of the soldered read head is classified based on the assembly quality information of the read head; The assembly quality information of the read head is compared with the preset standard. If it meets the preset standard, the circuit board of the read head is placed in the qualified area; otherwise, it is placed in the unqualified area.

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