Encoder adjusting device

Abstract

The utility model discloses an encoder adjusting device, which belongs to the technical field of encoders and comprises a fixing seat, a fixing ring is fixedly connected to an inner cavity of the fixing seat, a plurality of supporting seats are arranged at the bottom of the fixing ring, the supporting seats are slidably connected to the side wall of the inner cavity of the fixing seat, and the bottoms of the supporting seats are slidably connected to an inner cavity of a connecting plate. One side of each connecting plate is fixedly connected with a spring, the other end of each spring is fixedly connected to the outer surface of the corresponding supporting seat, and the multiple supporting seats can be combined and spliced into a circular truncated cone. According to the device, the encoder can be fixed in the inner cavity of the fixing base, the situation that the encoder does not correspond to the axis position of the motor shaft is avoided, vibration generated when the encoder works can be reduced, and the problems that when the encoder and the motor shaft are fixed, the axis of the motor does not coincide with the axis of the encoder, and when the encoder works, the motor cannot work are solved. And vibration generated by equipment such as a motor is transmitted to the encoder, so that the encoder is easy to break down or damage.

Description

Technical Field

[0001] The utility model relates to the technical field of encoders, in particular to an encoder adjustment device. Background Art

[0002] An encoder is a sensor used to measure rotation angle, position or speed. It is usually used in conjunction with a motor to achieve precise position control and motion control. The encoder is fixed to the motor shaft with screws to ensure a firm and reliable connection between the encoder and the motor shaft. By measuring the position and motion state of the rotor, it provides feedback signals to the control system to achieve precise position control and motion control.

[0003] When the existing encoder is fixed, the fixing length of the screw cannot be kept completely consistent, so the axis center line of the motor and the axis center line of the encoder are not easy to coincide. Therefore, the encoder is prone to vibration during rotation, thereby affecting the accuracy of the encoder.

[0004] To solve the above problems, a Chinese patent now discloses an encoder coaxial adjustment device (announcement number: CN209590355U). The operator aligns the center of the guide wheel shaft with the center of the motor shaft, and then fixes the encoder in the inner cavity of the guide wheel shaft. The operator rotates the adjusting bolt to adjust the length of the bolt entering the fixed ring, so that multiple fixing rings fix the position of the encoder, thereby ensuring that the axial position of the encoder and the guide wheel shaft is in the same straight line as the motor shaft, avoiding inaccurate measurement values ​​of the encoder, thereby causing errors in position, speed or direction control.

[0005] In view of the above problems, existing patents have provided solutions. However, since the encoder is directly fixed to the motor housing through a connecting base, this connection method will directly transmit the vibration generated by the motor and other equipment to the encoder, which can easily cause the encoder to malfunction or be damaged. Summary of the invention

[0006] The utility model aims to provide an encoder adjustment device, which can solve the problem that when the encoder is working, the vibration generated by the motor and other equipment is transmitted to the encoder, which easily causes the encoder to malfunction or be damaged.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an encoder adjustment device, comprising a fixed seat, the inner cavity of the fixed seat is fixedly connected to a fixed ring, a plurality of support seats are provided at the bottom of the fixed ring, the support seats are slidably connected to the inner cavity side wall of the fixed seat, the bottom of the support seat is slidably connected to the inner cavity of a connecting plate, a spring is fixedly connected to one side of the connecting plate, the other end of the spring is fixedly connected to the outer surface of the support seat, and a plurality of the support seats can be combined and spliced ​​into a truncated cone.

[0008] Preferably, a plurality of vertical plates are equidistantly fixedly connected to the top of the connecting plate, a wedge plate is fixedly connected to the top of the vertical plate, the inclined surface of the wedge plate is in contact with the snap-in plate, and the snap-in plate is slidably connected to the inner cavity of the fixing ring.

[0009] Preferably, a sliding plate is fixedly connected to the bottom of the connecting plate, the sliding plate is slidably connected to the inner cavity side wall of the fixing seat, and a rubber pad is fixedly connected to one end of the clamping plate away from the wedge plate.

[0010] Preferably, an airbag is fixedly connected to the bottom of the sliding plate, two circumferential sides of the airbag are connected to the auxiliary bag, and the top of the auxiliary bag passes through the sliding plate and extends to the top of the sliding plate.

[0011] Preferably, a movable magnet is fixedly connected to the bottom of the sliding plate, and a fixed magnet is fixedly connected to the bottom of the inner cavity of the airbag.

[0012] Preferably, the moving magnet and the fixed magnet have opposite magnetic poles that are the same.

[0013] Preferably, a rotating shaft is fixedly connected to the bottom of the fixed magnet, and a baffle is fixedly connected to the outer surface of the rotating shaft.

[0014] Preferably, the inner cavity of the fixing seat is provided with a plurality of placement grooves at equal intervals, and the inner cavity of the placement groove is provided with a movable groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In this application, a fixed seat is set up. After the operator aligns the fixed seat with the center of the motor shaft, the encoder is placed in the inner cavity of the fixed seat. The bottom of the encoder contacts multiple support seats, so that the support seat slides in the inner cavity of the connecting plate. The support plate continuously stretches the spring until the bottom of the encoder is fixed to the bottom of the inner cavity of the fixed seat, thereby avoiding encoder deviation, resulting in the misalignment of the axis center line of the motor shaft and the encoder, making the measurement value inaccurate, and further causing errors in the position, speed or direction of the motor when measuring.

[0017] 2. The present application sets a connecting plate. When the operator places the encoder in the inner cavity of the fixed seat, the encoder drives the connecting plate to move downward, the connecting plate drives the vertical plate to move downward synchronously, the vertical plate drives the wedge plate to move downward, the wedge plate contacts the snap-on plate, and pushes the snap-on plate to slide in the inner cavity of the fixed ring until the snap-on plate contacts the outer surface of the top of the encoder, ensuring that the encoder can be stably clamped in the inner cavity of the fixed seat, thereby ensuring the stability of the encoder during measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is the overall structural view of the utility model;

[0020] Figure 2 It is a partial structural sectional view of the utility model;

[0021] Figure 3 It is a top view of the sliding plate structure of the utility model;

[0022] Figure 4 This is a bottom view of the sliding plate structure of the utility model;

[0023] Figure 5 It is a cross-sectional view of the fixing seat structure of the utility model.

[0024] Description of reference numerals:

[0025] 1. Fixed seat; 2. Fixed ring; 3. Support seat; 4. Snap-in plate; 5. Connecting plate; 6. Spring; 7. Vertical plate; 8. Sliding plate; 9. Auxiliary bag; 10. Air bag; 11. Fixed magnet; 12. Rotating shaft; 13. Moving magnet; 14. Baffle; 15. Placement slot; 16. Moving slot; 17. Wedge plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figures 1 to 5 , the utility model provides a technical solution:

[0028] An encoder adjustment device includes a fixed seat 1, the inner cavity of the fixed seat 1 is fixedly connected to a fixed ring 2, the bottom of the fixed ring 2 is provided with a plurality of support seats 3, the support seats 3 are slidably connected to the inner cavity side wall of the fixed seat 1, the bottom of the support seat 3 is slidably connected to the inner cavity of a connecting plate 5, one side of the connecting plate 5 is fixedly connected to a spring 6, the other end of the spring 6 is fixedly connected to the outer surface of the support seat 3, a plurality of support seats 3 can be combined and spliced ​​into a truncated cone, a plurality of vertical plates 7 are equidistantly fixedly connected to the top of the connecting plate 5, a wedge plate 17 is fixedly connected to the top of the vertical plate 7, the inclined surface of the wedge plate 17 contacts with a clamping plate 4, the clamping plate 4 is slidably connected to the inner cavity of the fixed ring 2, and the end of the clamping plate 4 away from the wedge plate 17 is fixedly connected to a rubber pad.

[0029] By adopting the above technical solution, when the operator wants to make the encoder correspond to the center of the motor shaft, the operator aligns the fixed seat 1 with the center of the motor shaft, and then places the encoder in the inner cavity of the fixed seat 1. The bottom of the encoder contacts multiple support seats 3, so that the support seat 3 slides in the inner cavity of the connecting plate 5, and the support plate continuously stretches the spring 6 until the bottom of the encoder is fixed at the bottom of the inner cavity of the fixed seat 1. The encoder drives the connecting plate 5 to move downward, and the connecting plate 5 drives the vertical plate 7 to move downward synchronously. The vertical plate 7 drives the wedge plate 17 to move downward, and the wedge plate 17 contacts the clamping plate 4, pushing the clamping plate 4 to slide in the inner cavity of the fixing ring 2 until the clamping plate 4 contacts the outer surface of the top of the encoder, ensuring that the encoder can be stably clamped in the inner cavity of the fixed seat 1 to avoid encoder deviation, resulting in the misalignment of the motor shaft and the axis center line of the encoder, so that the measurement value will be inaccurate, and then cause errors in the position, speed or direction of the motor during measurement.

[0030] Specifically, Figure 3 , Figure 4 As shown, the bottom of the connecting plate 5 is fixedly connected to a sliding plate 8, and the sliding plate 8 is slidably connected to the inner cavity side wall of the fixed seat 1. The bottom of the sliding plate 8 is fixedly connected to an airbag 10, and the circumferential sides of the airbag 10 are connected to the auxiliary bag 9. The top of the auxiliary bag 9 passes through the sliding plate 8 and extends to the top of the sliding plate 8.

[0031] By adopting the above technical solution, when the encoder vibrates, the encoder drives the sliding plate 8 to slide up and down in the inner cavity of the fixed seat 1. The sliding plate 8 continuously squeezes the airbag 10, causing the gas to move back and forth in the inner cavities of the airbag 10 and the auxiliary bag 9, thereby reducing the vibration generated when the encoder is used and reducing the wear of the mechanical structure, thereby avoiding failure or damage of the encoder.

[0032] Specifically, Figure 3 , Figure 4 As shown, a movable magnet 13 is fixedly connected to the bottom of the sliding plate 8, and a fixed magnet 11 is fixedly connected to the bottom of the inner cavity of the airbag 10. The opposite magnetic poles of the movable magnet 13 and the fixed magnet 11 are the same.

[0033] By adopting the above technical solution, when the encoder vibrates, the encoder drives the sliding plate 8 to slide up and down in the inner cavity of the fixed base 1. Since the opposite magnetic poles of the movable magnet 13 and the fixed magnet 11 are the same, the magnetic repulsion generated by the two magnets further reduces the vibration generated by the encoder, thereby ensuring the stability of the encoder during operation.

[0034] Specifically, Figure 4 , Figure 5 As shown, the bottom of the fixed magnet 11 is fixedly connected to a rotating shaft 12, the outer surface of the rotating shaft 12 is fixedly connected to a baffle 14, the inner cavity of the fixed seat 1 is equidistantly provided with a plurality of placement grooves 15, and the inner cavity of the placement grooves 15 is provided with a movable groove 16.

[0035] By adopting the above technical solution, the operator rotates the rotating shaft 12, and the rotating shaft 12 drives the baffle 14 to rotate in the inner cavity of the fixed seat 1 until the baffle 14 corresponds to the movable groove 16. The rotating shaft 12 is pushed to make the rotating shaft 12 drive the fixed magnet 11 to move, and then the rotating shaft 12 is rotated to engage the baffle 14 into the inner cavity of the placement groove 15. The operator adjusts the position of the fixed magnet 11 to adjust the distance between the fixed magnet 11 and the movable magnet 13 to ensure that the vibration reduction effect of the encoder is optimal.

[0036] Working principle: when the operator wants to make the encoder correspond to the center of the motor shaft, the operator makes the fixed seat 1 correspond to the center of the motor shaft, and then places the encoder in the inner cavity of the fixed seat 1. The bottom of the encoder contacts multiple support seats 3, so that the support seat 3 slides in the inner cavity of the connecting plate 5, and the support plate continuously stretches the spring 6 until the bottom of the encoder is fixed at the bottom of the inner cavity of the fixed seat 1. The encoder drives the connecting plate 5 to move downward, and the connecting plate 5 drives the vertical plate 7 to move downward synchronously. The vertical plate 7 drives the wedge plate 17 to move downward, and the wedge plate 17 contacts the clamping plate 4, pushing the clamping plate 4 to slide in the inner cavity of the fixed ring 2 until the clamping plate 4 contacts the outer surface of the top of the encoder, ensuring that the encoder can be stably clamped in the inner cavity of the fixed seat 1. When the encoder vibrates, the encoder drives the sliding plate 8 to slide up and down in the inner cavity of the fixed seat 1, and the sliding plate 8 continuously squeezes the airbag 10, so that the gas moves back and forth in the inner cavities of the airbag 10 and the auxiliary bag 9, and the moving magnet 13 has the same magnetic poles as the opposite surface of the fixed magnet 11, and the magnetic repulsion generated by the two magnets reduces the vibration generated by the encoder.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An encoder adjustment device, comprising a fixing seat (1), Features: The inner cavity of the fixing seat (1) is fixedly connected to a fixing ring (2), and a plurality of support seats (3) are provided at the bottom of the fixing ring (2). The support seats (3) are slidably connected to the inner cavity side wall of the fixing seat (1), and the bottom of the support seat (3) is slidably connected to the inner cavity of the connecting plate (5). A spring (6) is fixedly connected to one side of the connecting plate (5), and the other end of the spring (6) is fixedly connected to the outer surface of the support seat (3). A plurality of the support seats (3) can be combined and spliced ​​into a truncated cone.

2. An encoder adjustment device according to claim 1, Features: The top of the connecting plate (5) is fixedly connected to a plurality of vertical plates (7) at equal intervals, the top of the vertical plate (7) is fixedly connected to a wedge plate (17), the inclined surface of the wedge plate (17) is in contact with the clamping plate (4), and the clamping plate (4) is slidably connected to the inner cavity of the fixing ring (2).

3. An encoder adjustment device according to claim 2, Features: The bottom of the connecting plate (5) is fixedly connected to a sliding plate (8), and the sliding plate (8) is slidably connected to the inner cavity side wall of the fixing seat (1). The end of the clamping plate (4) away from the wedge plate (17) is fixedly connected to a rubber pad.

4. An encoder adjustment device according to claim 3, Features: The bottom of the sliding plate (8) is fixedly connected with an airbag (10), the circumferential sides of the airbag (10) are connected with the auxiliary bag (9), and the top of the auxiliary bag (9) penetrates the sliding plate (8) and extends to the top of the sliding plate (8).

5. An encoder adjustment device according to claim 4, Features: The bottom of the sliding plate (8) is fixedly connected to a moving magnet (13), and the bottom of the inner cavity of the airbag (10) is fixedly connected to a fixed magnet (11).

6. An encoder adjustment device according to claim 5, Features: The moving magnet (13) and the fixed magnet (11) have the same magnetic poles on opposite surfaces.

7. An encoder adjustment device according to claim 6, Features: The bottom of the fixed magnet (11) is fixedly connected to a rotating shaft (12), and the outer surface of the rotating shaft (12) is fixedly connected to a baffle (14).

8. An encoder adjustment device according to claim 7, Features: The inner cavity of the fixing seat (1) is provided with a plurality of placement grooves (15) at equal intervals, and the inner cavity of the placement groove (15) is provided with a moving groove (16).

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