A test instrument for an encoder

Abstract

The utility model discloses a kind of testing instruments for encoder, it is related to encoder technical field, including fixed frame, tester, encoder, fixed mechanism and adjusting mechanism, fixed mechanism includes servo motor, transmission rod, worm, worm wheel, arc plate, fixed block, clamping plate and buffer assembly, for the centering and flexible clamping of encoder;Adjusting mechanism includes L type frame, adjusting plate, fixed seat, stroke rod, guide rod and spring, for adjusting tester height and realizing quick locking, the utility model is set by fixed mechanism and adjusting mechanism, the problem that existing in clamping process due to contact is easily damaged encoder shell, clamping positioning precision is low, and test interface docking unstable is solved, by the worm worm wheel transmission cooperation elastic buffer of servo drive, realize nondestructive clamping;By spring reset and guide sliding slot cooperation, ensure that tester is stable, docking accurate, improve test reliability and equipment versatility.

Description

Technical Field

[0001] This utility model relates to the field of encoder technology, specifically to a test instrument for encoders. Background Technology

[0002] In the field of industrial inspection, encoders, as key position and speed feedback components, often need to undergo batch performance testing on the production line. Such tests usually require the encoder to be stably clamped and reliably connected to the test equipment.

[0003] In existing technologies, most testing devices use fixed clamps to directly press the encoder housing, which lacks buffering and is prone to scratches, deformation, or even loosening of internal components during clamping. At the same time, the docking of test probes or interfaces often relies on manual fine-tuning, which can lead to problems such as misalignment and poor contact, affecting the repeatability and reliability of test results. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a testing instrument for encoders, which has the advantages of flexible clamping and stable docking, and solves the problems of device damage and inaccurate positioning.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a testing instrument for an encoder, wherein the testing component includes a fixed frame, a tester, and an encoder, the tester is disposed below the fixed frame, and the upper end of the tester contacts the lower end of the encoder; The tester surface is provided with an adjustment mechanism, and the encoder surface is provided with a fixing mechanism. The adjustment mechanism is used to adjust the height of the tester, and the fixing mechanism is used to fix the encoder.

[0006] In a preferred embodiment of this utility model, the adjustment mechanism includes a stroke rod, an L-shaped frame, an adjustment plate, a fixed seat, a spring, and a guide rod. The surface of the stroke rod is slidably connected to the inner wall of the L-shaped frame, the inner wall of the L-shaped frame is in contact with the surface of the adjustment plate, the inner side of the adjustment plate is in contact with the surface of the fixed seat, the spring is sleeved on the surface of the guide rod, and the surface of the guide rod is fixedly connected to the surface of the fixed seat.

[0007] In a preferred embodiment of this invention, the upper end of the travel rod is fixedly connected to the lower end of the fixed frame, the inner wall of the lower end of the L-shaped frame is fixedly connected to the surface of the tester, the surface of the fixed seat is fixedly connected to the surface of the fixed frame, the inner wall of the fixed seat is slidably connected to the surface of the L-shaped frame, and the two ends of the spring are fixedly connected to the surface of the adjusting plate and the end of the guide rod, respectively.

[0008] In a preferred embodiment of this invention, the fixing mechanism includes a servo motor, a transmission rod, a worm gear, a worm wheel, an arc-shaped plate, a fixing block, a clamping plate, and a protective tube. The output end of the servo motor is fixedly connected to the surface of the transmission rod, the surface of the transmission rod is fixedly connected to the surface of the worm gear, the tooth surface of the worm gear meshes with the tooth surface of the worm wheel, the inner wall of the worm wheel is rotatably connected to the surface of the arc-shaped plate via a rotating shaft, the surface of the arc-shaped plate is rotatably connected to the inner wall of the fixing block via a rotating shaft, the surface of the fixing block is fixedly connected to the surface of the clamping plate, and the protective tube is disposed on the surface of the fixing frame.

[0009] As a preferred embodiment of the present invention, the fixing mechanism includes a buffer mechanism, which includes an elastic block and a flexible plate, wherein the surface of the elastic block is fixedly connected to the surface of the flexible plate.

[0010] In a preferred embodiment of this invention, the servo motor and the surface of the protective tube are both fixedly connected to the surface of the fixed frame, the surfaces of the transmission rod and the worm gear are both rotatably connected to the inner wall of the protective tube, the surface of the protective tube is fixedly connected to the surface of the fixed frame, and the surface of the worm gear is rotatably connected to the inner wall of the fixed frame via a sliding groove.

[0011] In a preferred embodiment of this invention, the surfaces of the clamping plate and the flexible plate are both in contact with the surface of the encoder, the surface of the elastic block is fixedly connected to the inner wall of the clamping plate, the surface of the flexible plate is slidably connected to the inner wall of the clamping plate, and the surfaces of the arc-shaped plate and the fixing block are slidably connected to the inner wall of the fixing frame through a sliding groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model solves the problems of easy damage to the encoder during clamping, inaccurate positioning, and unstable docking of the tester by setting up a fixing mechanism and an adjustment mechanism, and achieves the test effect of flexible clamping, positioning and reliable connection.

[0013] 2. This utility model achieves controllable clamping force and centering clamping by setting a fixing mechanism composed of a servo motor, worm gear and flexible buffer structure, which effectively avoids scratches or deformation of the encoder shell due to clamping and improves clamping safety.

[0014] 3. This utility model achieves rapid adjustment and stable locking of the tester height by setting an adjustment mechanism including an L-shaped frame, an adjustment plate, a spring, and a guide rod, ensuring the connection of the test interface and solving the problems of cumbersome adjustment and easy deviation of traditional devices. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main three-dimensional structure provided in an embodiment of the present utility model; Figure 2This is a three-dimensional structural diagram of the adjustment mechanism provided in an embodiment of the present utility model; Figure 3 This is a three-dimensional structural diagram of the fixing mechanism provided in an embodiment of the present utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the main body in vertical cross-section provided in this embodiment of the utility model.

[0016] In the diagram: 1. Test component; 101. Fixing frame; 102. Tester; 103. Encoder; 2. Adjustment mechanism; 201. Stroke rod; 202. L-shaped frame; 203. Adjustment plate; 204. Fixing base; 205. Spring; 206. Guide rod; 3. Fixing mechanism; 301. Servo motor; 302. Transmission rod; 303. Worm gear; 304. Worm wheel; 305. Arc plate; 306. Fixing block; 307. Clamping plate; 308. Protective tube; 4. Buffer mechanism; 401. Elastic block; 402. Flexible plate. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0021] Example 1 Reference Figure 1-4In the first embodiment of this utility model, a test component 1 is provided, including a fixing frame 101, a tester 102 and an encoder 103. The tester 102 is disposed below the fixing frame 101, and the upper end of the tester 102 contacts the lower end of the encoder 103. An adjustment mechanism 2 is provided on the surface of the tester 102, and a fixing mechanism 3 is provided on the surface of the encoder 103. The adjustment mechanism 2 is used to adjust the height of the tester 102, and the fixing mechanism 3 is used to fix the encoder 103.

[0022] Specifically, the test component 1 achieves stable clamping of the encoder 103 and docking with the tester 102 through the fixing mechanism 3 and the adjusting mechanism 2. The fixing mechanism 3 adopts a servo-driven worm gear 303 and worm wheel 304 transmission combined with a flexible buffer structure to ensure that the encoder 103 is subjected to uniform force and without damage during clamping. The adjusting mechanism 2 supports rapid adjustment and reliable locking of the height of the tester 102 through spring 205 reset and guide slide. The two work together to effectively solve the problems of test failure or device damage caused by large clamping force, positioning deviation and interface misalignment in traditional test devices, thereby improving test efficiency and equipment applicability.

[0023] Furthermore, the height of the tester 102 is adjusted by the adjustment mechanism 2, and the encoder 103 is fixed by the fixing mechanism 3.

[0024] Example 2 The second embodiment of this utility model provides an adjustment mechanism 2 including a stroke rod 201, an L-shaped frame 202, an adjustment plate 203, a fixed seat 204, a spring 205, and a guide rod 206. The surface of the stroke rod 201 is slidably connected to the inner wall of the L-shaped frame 202, the inner wall of the L-shaped frame 202 is in contact with the surface of the adjustment plate 203, the inner side of the adjustment plate 203 is in contact with the surface of the fixed seat 204, the spring 205 is sleeved on the surface of the guide rod 206, the surface of the guide rod 206 is fixedly connected to the surface of the fixed seat 204, the upper end of the stroke rod 201 is fixedly connected to the lower end of the fixed frame 101, the inner wall of the lower end of the L-shaped frame 202 is fixedly connected to the surface of the tester 102, the surface of the fixed seat 204 is fixedly connected to the surface of the fixed frame 101, the inner wall of the fixed seat 204 is slidably connected to the surface of the L-shaped frame 202, and both ends of the spring 205 are fixedly connected to the surface of the adjustment plate 203 and the end of the guide rod 206, respectively.

[0025] Specifically, the adjustment mechanism 2, through the sliding engagement between the L-shaped frame 202 and the fixed base 204, combined with the guiding effect of the stroke rod 201 on vertical movement, ensures that the tester 102 operates smoothly during lifting and lowering. Under the synergistic action of the spring 205 and the guide rod 206, the adjustment plate 203 can quickly disengage or lock into the slots at different heights of the L-shaped frame 202, realizing the adjustment and reliable fixation of the position of the tester 102. This solves the problems of low docking accuracy, cumbersome adjustment, and unstable connection in traditional testing devices, improves the accuracy of the interface docking between the encoder 103 and the tester 102, and provides a guarantee for safe testing.

[0026] Furthermore, after clamping the encoder 103, the operator pulls the adjusting plate 203 outward to disengage it from the corresponding slot of the L-shaped frame 202. Under the constraint of the guide rod 206, the adjusting plate 203 slides horizontally and compresses the spring 205. Subsequently, the L-shaped frame 202 moves vertically along the inner wall groove of the fixed seat 204, driving the tester 102 to rise and fall synchronously until the upper end of the tester 102 abuts against the bottom test interface of the encoder 103. At the same time, the inner wall of the L-shaped frame 202 slides in cooperation with the stroke rod 201 to ensure stable movement and avoid deviation. After the position is adjusted to the correct position, the adjusting plate 203 is released. Under the restoring force of the spring 205, the adjusting plate 203 resets and embeds into the corresponding height slot, locking the L-shaped frame 202 and entering the testable state.

[0027] Example 3 The third embodiment of this utility model provides a fixing mechanism 3 including a servo motor 301, a transmission rod 302, a worm gear 303, a worm wheel 304, an arc plate 305, a fixing block 306, a clamping plate 307, and a protective tube 308. The output end of the servo motor 301 is fixedly connected to the surface of the transmission rod 302, the surface of the transmission rod 302 is fixedly connected to the surface of the worm gear 303, the tooth surface of the worm gear 303 meshes with the tooth surface of the worm wheel 304, the inner wall of the worm wheel 304 is rotatably connected to the surface of the arc plate 305 via a rotating shaft, the surface of the arc plate 305 is rotatably connected to the inner wall of the fixing block 306 via a rotating shaft, the surface of the fixing block 306 is fixedly connected to the surface of the clamping plate 307, and the protective tube 308 is disposed on the surface of the fixing frame 101. The fixing mechanism 3 includes a buffer mechanism 4. The system includes an elastic block 401 and a flexible plate 402. The surface of the elastic block 401 is fixedly connected to the surface of the flexible plate 402. The surfaces of the servo motor 301 and the protective tube 308 are both fixedly connected to the surface of the fixed frame 101. The surfaces of the transmission rod 302 and the worm gear 303 are both rotatably connected to the inner wall of the protective tube 308. The surface of the protective tube 308 is fixedly connected to the surface of the fixed frame 101. The surface of the worm wheel 304 is rotatably connected to the inner wall of the fixed frame 101 through a sliding groove. The surfaces of the clamping plate 307 and the flexible plate 402 are both in contact with the surface of the encoder 103. The surface of the elastic block 401 is fixedly connected to the inner wall of the clamping plate 307. The surface of the flexible plate 402 is slidably connected to the inner wall of the clamping plate 307. The surfaces of the arc plate 305 and the fixed block 306 are both slidably connected to the inner wall of the fixed frame 101 through a sliding groove.

[0028] Specifically, the fixing mechanism 3 drives the worm gear 303 and worm wheel 304 through the servo motor 301, which in turn drives the arc plate 305 and the fixing block 306 to move synchronously and center the clamping plate 307, ensuring the positioning of the encoder 103. At the same time, the clamping plate 307 is equipped with a buffer mechanism 4 composed of an elastic block 401 and a flexible plate 402, which provides elastic buffering during the clamping process, effectively avoiding contact damage to the encoder 103 housing. This solves the problems of easy off-center loading, damage to components, and insufficient adjustment accuracy of traditional clamping devices, and improves the reliability and safety of clamping before testing.

[0029] Furthermore, before testing the encoder 103, it is placed in the positioning area formed by the clamping plate 307 within the fixed frame 101. The servo motor 301 is started, and its output end drives the worm gear 303 to rotate through the transmission rod 302. The worm gear 303 meshes with the worm wheel 304, causing the worm wheel 304 to rotate synchronously. Since the worm wheel 304 is connected to the fixed block 306 through the arc plate 305, and the two ends of the arc plate 305 are rotatably connected through the rotating shaft, the rotation of the worm wheel 304 is converted into the oscillation of the arc plate 305, which drives the clamping plate 307 fixed to the fixed block 306 to move relative to the fixed block 306. The movement and control of the servo motor 301 can adjust the meshing direction of the worm gear 303 and the worm wheel 304, and control the distance between the clamping plates 307 to achieve initial positioning and clamping of the encoder 103. When the clamping plates 307 approach and contact the encoder 103 housing, the inner flexible plate 402 adheres to the surface of the encoder 103 under the support of the elastic block 401. The flexible plate 402 is made of a material with elasticity and buffering properties, which can disperse contact stress and prevent scratches or deformation of the encoder 103 housing, thereby achieving flexible protection for the device under test and providing reliable support for subsequent testing.

[0030] Working principle: Before testing the encoder 103, it must first be placed inside the mounting frame 101 in the positioning area formed by the clamping plate 307. After starting the servo motor 301, its output end drives the worm gear 303 to rotate through the transmission rod 302. The worm gear 303 meshes with the worm wheel 304, driving the worm wheel 304 to rotate synchronously. Since the worm wheel 304 is connected to the fixed block 306 through the arc plate 305, and both ends of the arc plate 305 are rotatably connected through rotating shafts, the rotational motion of the worm wheel 304 can be converted into the rotational motion of the arc plate 305. The oscillation causes the clamping plate 307, which is fixed to the fixed block 306, to move relative to the encoder 103. By controlling the direction of the servo motor 301, the meshing direction of the worm gear 303 and the worm wheel 304 can be adjusted, thereby controlling the distance between the clamping plate 307 and the encoder 103, achieving initial positioning and clamping of the encoder 103. As the clamping plate 307 gradually approaches and contacts the encoder 103 housing, the flexible plate 402 on its inner side synchronously adheres to the surface of the encoder 103 under the support of the elastic block 401. The flexible plate 402 adopts a certain... The elastic and cushioning material effectively disperses contact stress during clamping, preventing scratches or deformation of the encoder 103 housing due to clamping. This provides flexible protection for the device under test and a reliable support foundation for subsequent testing. After clamping the encoder 103, the operator pulls the adjusting plate 203 outward to disengage it from the slot corresponding to the L-shaped frame 202. At this time, the adjusting plate 203 slides horizontally under the constraint of the guide rod 206, while compressing the spring 205. Subsequently, it slides along the inner wall of the fixed base 204. The L-shaped frame 202 moves vertically along the slide, causing the tester 102 fixed at its lower end to rise and fall synchronously until the upper end of the tester 102 accurately abuts against the test interface at the bottom of the encoder 103. At the same time, the inner wall of the L-shaped frame 202 slides and engages with the travel rod 201 fixed at the lower end of the fixed frame 101 to ensure movement stability and avoid deviation. When the position is adjusted to the correct position, the adjusting plate 203 is released. Under the restoring force of the spring 205, the adjusting plate 203 resets and is embedded in the corresponding height slot, thereby locking the L-shaped frame 202 and entering the testable state.

[0031] In summary, through the coordinated operation of servo motors, worm gear drives, arc plate linkage, flexible clamping, and an adjustment plate with spring reset and L-shaped frame, reliable positioning, flexible clamping, and connection of the test interface for the encoder are achieved, effectively ensuring the stability of the testing process and the safety of the device under test.

[0032] The testers, encoders, servo motors, elastic blocks, and springs used in this application can be additionally equipped with protective measures of common knowledge in the field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0033] It should be noted that (spring, servo motor, worm, worm wheel and elastic block) are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the device, as well as the materials of each accessory and the selection of various parameters are common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0034] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0036] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A testing instrument for an encoder, characterized in that: The test assembly (1) for an encoder includes a mounting bracket (101), a tester (102), and an encoder (103). The tester (102) is located below the mounting bracket (101), and the upper end of the tester (102) contacts the lower end of the encoder (103). The tester (102) has an adjustment mechanism (2) on its surface and the encoder (103) has a fixing mechanism (3) on its surface. The adjustment mechanism (2) is used to adjust the height of the tester (102) and the fixing mechanism (3) is used to fix the encoder (103).

2. The encoder testing instrument according to claim 1, characterized in that: The adjustment mechanism (2) includes a stroke rod (201), an L-shaped frame (202), an adjustment plate (203), a fixed seat (204), a spring (205), and a guide rod (206). The surface of the stroke rod (201) is slidably connected to the inner wall of the L-shaped frame (202). The inner wall of the L-shaped frame (202) is in contact with the surface of the adjustment plate (203). The inner side of the adjustment plate (203) is in contact with the surface of the fixed seat (204). The spring (205) is sleeved on the surface of the guide rod (206). The surface of the guide rod (206) is fixedly connected to the surface of the fixed seat (204).

3. The encoder testing instrument according to claim 2, characterized in that: The upper end of the stroke rod (201) is fixedly connected to the lower end of the fixed frame (101), the inner wall of the lower end of the L-shaped frame (202) is fixedly connected to the surface of the tester (102), the surface of the fixed seat (204) is fixedly connected to the surface of the fixed frame (101), the inner wall of the fixed seat (204) is slidably connected to the surface of the L-shaped frame (202), and the two ends of the spring (205) are fixedly connected to the surface of the adjusting plate (203) and the end of the guide rod (206), respectively.

4. The encoder testing instrument according to claim 2, characterized in that: The fixing mechanism (3) includes a servo motor (301), a transmission rod (302), a worm (303), a worm wheel (304), an arc plate (305), a fixing block (306), a clamping plate (307), and a protective tube (308). The output end of the servo motor (301) is fixedly connected to the surface of the transmission rod (302). The surface of the transmission rod (302) is fixedly connected to the surface of the worm (303). The tooth surface of the worm (303) meshes with the tooth surface of the worm wheel (304). The inner wall of the worm wheel (304) is rotatably connected to the surface of the arc plate (305) via a rotating shaft. The surface of the arc plate (305) is rotatably connected to the inner wall of the fixing block (306) via a rotating shaft. The surface of the fixing block (306) is fixedly connected to the surface of the clamping plate (307). The protective tube (308) is disposed on the surface of the fixing frame (101).

5. The encoder testing instrument according to claim 4, characterized in that: The fixing mechanism (3) includes a buffer mechanism (4), which includes an elastic block (401) and a flexible plate (402), with the surface of the elastic block (401) fixedly connected to the surface of the flexible plate (402).

6. The encoder testing instrument according to claim 5, characterized in that: The surfaces of the servo motor (301) and the protective tube (308) are fixedly connected to the surface of the fixed frame (101). The surfaces of the transmission rod (302) and the worm gear (303) are rotatably connected to the inner wall of the protective tube (308). The surface of the protective tube (308) is fixedly connected to the surface of the fixed frame (101). The surface of the worm gear (304) is rotatably connected to the inner wall of the fixed frame (101) through a sliding groove.

7. The encoder testing instrument according to claim 5, characterized in that: The surfaces of the clamping plate (307) and the flexible plate (402) are in contact with the surface of the encoder (103). The surface of the elastic block (401) is fixedly connected to the inner wall of the clamping plate (307). The surface of the flexible plate (402) is slidably connected to the inner wall of the clamping plate (307). The surfaces of the arc plate (305) and the fixing block (306) are slidably connected to the inner wall of the fixing frame (101) through a sliding groove.

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