High-precision coded disc adjusting device

Abstract

The utility model relates to the technical field of coded disc installation and detection, and discloses a high-precision coded disc adjusting device which comprises a coded disc adjusting seat and a dial indicator, a guide rail is fixedly arranged on the coded disc adjusting seat, a rotary table installation plate is connected to the guide rail in a sliding mode, and a coded disc installation plate is rotationally connected to the rotary table installation plate through a rotary table. A to-be-tested code disc is fixedly connected to the code disc mounting plate, a supporting rod is fixedly arranged on the code disc adjusting seat, and a visual adjusting frame is movably connected to the supporting rod. According to the utility model, by accurately adjusting the concentricity of the glass code disc and the mounting plate, the measurement precision of the encoder can be obviously improved, the measurement deviation caused by mounting errors can be reduced, the reliability of equipment can be enhanced, meanwhile, the mechanical stress and unnecessary friction between the code disc and the mounting plate can be reduced, and the service life of the code disc can be prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to code disc installation detection technical field, concretely is a high accuracy code disc adjusting device. BACKGROUND

[0002] Glass code disc is the key component of the internal encoder of motor, is used for monitoring and feedback motor's rotation angle, speed and position information. It is usually made of a piece of glass, the surface is plated with metal chromium layer, and a series of light and shade stripes are engraved on the glass disc through laser technology. These stripes constitute the basis of the reading system of the encoder, utilize photoelectric conversion principle to detect the motion state of motor. When the motor rotates, the glass code disc also rotates with it. Because the stripe on the code disc is light and shade, therefore will produce the change of light. The change is captured by the photoelectric receiving tube and is converted into electric signal, thereby reflects the rotation angle and speed of motor.

[0003] After the code disc and the mounting plate are bonded, the concentricity of the code disc center and the mounting plate center directly affects the precision and stability of the photoelectric encoder, and the encoder precision directly affects the working performance of the DD motor. In the prior art, due to the existence of certain error in code disc processing, if the bonding between the code disc and the mounting plate is carried out with the center hole of the code disc as a reference, the concentricity between the center of the installed code disc and the center of the mounting plate is prone to deviation, thereby reducing the detection precision of the encoder. CONTENT OF THE UTILITY MODEL

[0004] (I) technical problem solved

[0005] In view of the defects of the prior art, the utility model provides a high accuracy code disc adjusting device, solves the problem that in the prior art, due to the existence of certain error in code disc processing, if the bonding between the code disc and the mounting plate is carried out with the center hole of the code disc as a reference, the concentricity between the center of the installed code disc and the center of the mounting plate is prone to deviation, thereby reducing the detection precision of the encoder.

[0006] (II) technical scheme

[0007] In order to realize the above object, the utility model is realized through the following technical scheme:

[0008] A high-precision code disc adjusting device, comprising a code disc adjusting seat and a millionth table, a guide rail is fixedly arranged on the code disc adjusting seat, a rotary table mounting plate is slidably connected to the guide rail, a code disc mounting plate is rotatably connected to the rotary table mounting plate through a rotary disc, a to-be-tested code disc is fixedly connected to the code disc mounting plate, a supporting rod is fixedly arranged on the code disc adjusting seat, a visual adjusting frame is movably connected to the supporting rod, the visual adjusting frame is locked and fixed on the supporting rod through locking screws, and an observation lens is fixedly arranged at one end of the visual adjusting frame and is located above the to-be-tested code disc and used for observing the moving track of the edge of the to-be-tested code disc.

[0009] Preferably, a sliding block is fixedly connected to the lower pad surface of the rotary table mounting plate, the sliding block is slidably connected to the guide rail, guide rail clamping plates are fixedly arranged on the two sides of the rotary table mounting plate, clamping screws are threadedly connected to the guide rail clamping plates, and the guide rail clamping plates are locked and fixed on the guide rail by screwing the clamping screws.

[0010] Preferably, a buffer rod is fixedly arranged at each end of the guide rail on the code disc adjusting seat.

[0011] Preferably, a code disc adjusting block is fixedly connected to the rotary disc, and the code disc mounting plate is detachably mounted on the code disc adjusting block.

[0012] Preferably, an adjusting belt is arranged on the outer circumferential surface of the to-be-tested code disc, and the adjusting belt is used for visual observation in cooperation with the observation lens.

[0013] (Three) beneficial effects

[0014] The high-precision code disc adjusting device has the following beneficial effects:

[0015] The high-precision code disc adjusting device can drive the rotary disc and the code disc on the rotary table mounting plate to move along the guide rail to a detection or dismounting position, so that the to-be-tested code disc can be quickly and conveniently replaced; the rotary disc and the millionth table are arranged, in the detection process, the to-be-tested code disc is made to perform circular motion by rotating the rotary disc, and the measurement result is displayed in cooperation with the millionth table; the observation lens is arranged, any displacement of the adjusting belt caused by rotation of the to-be-tested code disc can be observed, and personnel can also conveniently adjust the installation position of the to-be-tested code disc according to the measurement result displayed on the millionth table, so that the concentricity error between the to-be-tested code disc and the center of the code disc mounting plate is ensured to be within a permissible range. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is another whole structure schematic view of the utility model from another perspective;

[0018] Figure 3 The lens light source layout schematic diagram of the utility model;

[0019] Figure 4 The adjustment belt 90 degree rotation schematic diagram of the utility model;

[0020] Figure 5 The adjustment belt 90 degree rotation schematic diagram of the utility model;

[0021] Figure 6 The adjustment belt 90 degree rotation schematic diagram of the utility model;

[0022] Figure 7 The adjustment belt 90 degree rotation schematic diagram of the utility model;

[0023] In the figure: 1, code disc adjusting seat;2, guide rail;3, sliding block;4, rotary table mounting plate;41, guide rail clamping plate;42, clamping screw;43, buffer rod;5, rotary disc;6, code disc adjusting block;7, code disc mounting plate;8, code disc to be measured;9, millionth meter;10, observation lens;11, visual adjusting frame;12, supporting rod;13, locking screw. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figure 1 The utility model provides a kind of technical solutions: a high-precision code disc adjusting device, including code disc adjusting seat and millionth meter 9, code disc adjusting seat is fixedly provided with guide rail 2, rotary table mounting plate 4 is slidably connected on guide rail 2, code disc mounting plate 7 is rotatably connected on rotary table mounting plate 4 by rotary disc 5, code disc to be measured 8 is fixedly connected on code disc mounting plate 7, supporting rod 12 is fixedly set on code disc adjusting seat 1, visual adjusting frame 11 is movably connected on supporting rod 12, visual adjusting frame 11 is locked and fixed on supporting rod 12 by locking screw 13, observation lens 10 is fixedly set in visual adjusting frame one end, observation lens 10 is located in the upper of code disc to be measured 8 and is used to observe the movement track of the edge of code disc to be measured 8.

[0026] The utility model discloses, through the setting guide rail 2, can drive the carousel 5 with the code disc along guide rail 2 and move to the detection or dismounting position on the carousel mounting plate 4, convenient and fast replacement code disc 8 under measurement, through the setting carousel 5 and the millionth table 9, in the detection process, through the carousel 5 of rotation makes code disc 8 do circular motion, cooperate the millionth table 9 and show the measurement result, through the setting observation lens 10, to observe the code disc 8 rotation and adjust the displacement of any displacement, also can be convenient for personnel according to the measurement result shown on the millionth table 9, for the installation position of code disc 8 adjustment, guarantee code disc 8 and the concentricity error of code disc mounting plate 7 center is in the range of permission.

[0027] Referring to Figure 1 With 2 As shown in the figure, in the embodiment, the lower pad surface of the carousel mounting plate 4 is fixedly connected with the sliding block 3, the sliding block 3 is slidingly connected with the guide rail 2, and the two sides of the carousel mounting plate 4 are fixedly provided with the guide rail 2 clamping plates. The guide rail 2 clamping plate is threadedly connected with the clamping screw 42. By screwing the clamping screw 42, the guide rail 2 clamping plate is locked and fixed on the guide rail 2. By setting the guide rail 2 clamping plate and the clamping screw 42, the position of the carousel mounting plate 4 can be stably positioned, so that displacement of the carousel mounting plate 4 and the code disc 8 thereon during detection is avoided, and the accuracy of subsequent detection adjustment is affected.

[0028] Referring to Figure 1 With 2 As shown in the figure, in the embodiment, the code disc adjusting seat 1 is fixedly provided with the buffer rod 43 at both ends of the guide rail 2. By arranging the buffer rod 43 at both ends of the guide rail 2, the buffer rod 43 can buffer before the sliding block 3 stops when adjusting the horizontal position of the code disc 8, effectively avoiding the slight displacement of the code disc 8 on the code disc mounting plate 7 due to the buffer rod being hit when the sliding block stops.

[0029] Referring to Figure 1 As shown in the figure, in the embodiment, the carousel 5 is fixedly connected with the code disc adjusting block 6, and the code disc mounting plate 7 is detachably installed on the code disc adjusting block 6. By setting the code disc adjusting block 6, the entire code disc mounting plate 7 can be conveniently and quickly dismounted after the code disc 8 on the code disc mounting plate 7 is adjusted.

[0030] In the embodiment, the outer circumferential surface of the code disc 8 is arranged with an adjusting belt, and the adjusting belt is used for visual observation with the observation lens 10. Figures 4-7 As shown in the figure, the specific method for adjusting the accuracy of the code disc 8 on the code disc mounting plate 7 is as follows:

[0031] 1. Install the code disc mounting plate 7 on the carousel 5.

[0032] 2. Using adhesive to bond the code disk 8 to be tested to the code disk mounting plate 7, manually aligning, using the dial gauge 9 needle to align the side of the code disk 8 to be tested, rotating the turntable 5, since the code disk mounting plate 7 is installed on the turntable 5, the code disk mounting plate 7 is concentric with the device below, now rotating the turntable 5, detecting whether the code disk 8 to be tested is concentric with the code disk mounting plate 7, adjusting according to the error;

[0033] 3. Installing a microscope / camera observation lens 10 above the adjustment band of the code disk 8 to be tested, in order to observe any displacement of the adjustment band due to the rotation of the components such as the code disk 8 to be tested.

[0034] 4. Rotating the turntable 5 and the components such as the code disk 8 to be tested thereon and observing the maximum and minimum limit of the adjustment band movement, as shown in the attached Figures 4-7 , determining a point as the rotation starting point, rotating one revolution;

[0035] 5. Marking the shaft position at the movement limit;

[0036] 6. Rotating the code disk 8 to be tested, so that these movement limits one by one enter the observation field of view of the microscope;

[0037] 7. Gently moving the code disk 8 to be tested radially relative to the code disk mounting plate 7, so that the adjustment band moves to a position halfway between the maximum and minimum movement limits;

[0038] 8. Rotating the components and repeating steps 3-5 until the movement of the entire adjustment band meets the design specifications; then using the dial gauge 9 for detection;

[0039] 9. Let the adhesive cure;

[0040] 10. Rechecking the radial runout of the code disk 8 to be tested.

[0041] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying that there is any such actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed or inherent to such a process, method, article or apparatus. Without more limitations. By the sentence "including a limited element, it does not exclude the presence of another identical element in the process, method, article or apparatus including the said element".

[0042] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision code disk adjustment device, comprising a code disk adjustment base and a dial indicator, characterized in that: A guide rail is fixedly installed on the code disk adjustment base. A turntable mounting plate is slidably connected to the guide rail. A code disk mounting plate is rotatably connected to the turntable mounting plate via a turntable. A code disk to be tested is fixedly connected to the code disk mounting plate. A support rod is fixedly installed on the code disk adjustment base. A vision adjustment frame is movably connected to the support rod. The vision adjustment frame is locked and fixed to the support rod by locking screws. An observation lens is fixedly installed at one end of the vision adjustment frame. The observation lens is located above the code disk to be tested and is used to observe the movement trajectory of the edge of the code disk to be tested.

2. The high-precision code disk adjustment device according to claim 1, characterized in that: A slider is fixedly connected to the lower pad surface of the turntable mounting plate. The slider is slidably connected to the guide rail. Guide rail clamping plates are fixedly installed on both sides of the turntable mounting plate. Clamping screws are threaded onto the guide rail clamping plates. By turning the clamping screws, the guide rail clamping plates are driven to lock and fix the slider on the guide rail.

3. The high-precision code disk adjustment device according to claim 2, characterized in that: The encoder adjustment base is fixedly equipped with buffer bars at both ends of the guide rail.

4. The high-precision code disk adjustment device according to claim 3, characterized in that: A code disk adjustment block is fixedly connected to the turntable, and the code disk mounting plate is detachably mounted on the code disk adjustment block.

5. The high-precision code disk adjustment device according to claim 4, characterized in that: The outer circumferential surface of the code disk to be tested is provided with an adjustment band, which is used to cooperate with the observation lens for visual observation.

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