Back clearance detection device for speed reducer

Abstract

The utility model relates to the technical field of detection devices, in particular to a speed reducer back clearance detection device which comprises a power assembly, a fixing assembly and a press-in assembly, the power assembly, the fixing assembly and the press-in assembly are coaxially arranged, and the power assembly and the press-in assembly are arranged at the two ends of the fixing assembly respectively. The power assembly comprises a servo motor, an installation groove is formed in the fixing assembly, the speed reducer is installed in the installation groove and fixed to the fixing assembly through the press-in assembly, after being fixed, the speed reducer is driven by the servo motor to rotate to eliminate the back clearance influence, and the servo motor returns to the original position through reverse rotation. The device provided by the utility model can solve the technical problems that the existing speed reducer back clearance detection structure is complex and the cost is relatively high.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field, especially relates to a backlash detection device of speed reducer. BACKGROUND

[0002] Speed reducer is a kind of power transmission mechanism, mainly used to reduce the rotational speed of motor, internal combustion engine or other high-speed operation power equipment, while increasing output torque. In the case of fixed output end of speed reducer, the input end rotates clockwise and counterclockwise, when the input end generates torque, the input end of speed reducer generates a small angular displacement, and the angular displacement is backlash. The size of backlash directly affects the transmission accuracy and motion stability of speed reducer, and is the main parameter for dividing the transmission accuracy grade of speed reducer. The lower the backlash, the higher the accuracy of speed reducer. The main function of backlash detection device is to measure and evaluate the backlash of speed reducer. However, the existing speed reducer needs to set a special structure for measuring backlash when detecting backlash, which has low precision and leads to complex overall device and high cost. SUMMARY

[0003] To solve the technical problems of insufficient detection accuracy, complex structure and high cost of existing speed reducer backlash, the utility model provides a kind of speed reducer backlash detection device.

[0004] The utility model solves technical problem's scheme and provides a kind of speed reducer backlash detection device, including power component, fixed component and press-in component, the power component, the fixed component and the press-in component are coaxial arrangement, the power component and the press-in component are respectively arranged in the fixed component both ends;The power component includes servo motor, the fixed component is equipped with installation groove, the speed reducer is installed in the installation groove and is fixed by the press-in component and the fixed component, after fixing, the speed reducer is driven to rotate by the servo motor and eliminates the influence of backlash, and the servo motor is returned to the original position by reversing.

[0005] Preferably, the servo motor is preset with a fixed torque value of rotation, and the fixed torque value defines the range of the servo motor driving the speed reducer to rotate and the servo motor returning to the original position.

[0006] Preferably, the power component further includes a drive rod, one end of the drive rod is fixedly connected to the servo motor, and the other end of the drive rod is in contact with the speed reducer and rotates with the servo motor, thereby driving the speed reducer to rotate.

[0007] Preferably, the power component further includes a shaft coupling, and the shaft coupling is arranged at the end of the drive rod connected to the servo motor.

[0008] Preferably, the power assembly further comprises a first base, the first base comprises three coaxially arranged first mounting plates, and three coaxially arranged first mounting holes are formed in the first mounting plates respectively, the servo motor is mounted on the first mounting plate away from the fixed assembly and corresponds to the first mounting hole, and the driving rod is arranged in the first mounting hole and exposed on the side of the mounting plate close to the fixed assembly.

[0009] Preferably, the fixed assembly further comprises a spinning air cylinder, a pressing rod and a second base, the second base comprises a second mounting plate, the mounting groove is arranged on the second mounting plate, the pressing rod is arranged above the mounting groove, and the spinning air cylinder drives the pressing rod to fix the speed reducer.

[0010] Preferably, the pressing assembly comprises a pressing head and a pressing air cylinder, the pressing head is arranged on the side close to the speed reducer, and the pressing air cylinder drives the pressing head to press the speed reducer into the mounting groove and fix the speed reducer in cooperation with the pressing rod.

[0011] Preferably, the pressing assembly further comprises a third base, the third base comprises two coaxially arranged third mounting plates, coaxially arranged third mounting holes are formed in the third mounting plates respectively, the pressing head is detachably connected to the third mounting plate close to the fixed assembly, the pressing air cylinder is connected to the third mounting plate away from the fixed assembly, and the pressing head and the pressing air cylinder are fixedly connected through the third mounting holes.

[0012] Preferably, the rack is further provided, and the first base, the second base and the third base are fixedly connected to the rack.

[0013] Preferably, the power assembly further comprises a control system, the rack further comprises a control panel, and the control system is electrically connected with the control panel and the servo motor respectively.

[0014] Compared with the prior art, the back gap detection device for the speed reducer provided by the utility model has the following advantages:

[0015] 1. The utility model provides a kind of back gap detection device of speed reducer, after eliminating the influence of back gap by servo motor driving speed reducer rotation, then read the size of gap by rotating to original position, to spare the component of measuring gap;Specifically, speed reducer is placed in mounting groove by pressing component, and speed reducer is fixed by pressing component and fixed component, improve the stability of speed reducer, avoid the problem such as incorrect measurement result caused by displacement of speed reducer in the process of rotation;After speed reducer is fixed, servo motor drives speed reducer to work, eliminate the influence of back gap in the process of speed reducer rotation, improve the precision of speed reducer;Servo motor is reversed to original position afterwards, read the size of back gap, commonly used high-precision feedback device in servo motor has the characteristics of high precision and fast response, so that servo motor has the function of providing power and measuring back gap simultaneously, without setting the component specially used for measuring and reading back gap in device, reduce detection cost, save resources.

[0016] 2. The utility model provides a kind of back gap detection device of speed reducer, fixed torque value specifies the range of the servo motor driving the rotation of the speed reducer and the servo motor rotating back to original position, avoid the driving rotation and rotation of servo motor to be out of range, affect the stability of overall device work.

[0017] 3. The utility model provides a kind of back gap detection device of speed reducer, drive rod is as the medium between servo motor and speed reducer, can drive speed reducer rotation accurately under the action of servo motor, improve work efficiency, reduce efficiency waste.

[0018] 4. The utility model provides a kind of back gap detection device of speed reducer, coupling is used to firmly connect servo motor and drive rod together and rotate, and transmit motion and torque, and can also compensate the deviation between the two due to manufacturing and installation inaccuracy, deformation or thermal expansion during work and other reasons.

[0019] 5. The utility model provides a kind of back gap detection device of speed reducer, first mounting hole ensures that drive rod is stably installed, and corresponds with the position of speed reducer, so that servo motor can drive drive rod to rotate stably.

[0020] 6. The utility model provides a kind of back gap detection device of speed reducer, can flexibly adjust the height of mounting groove by second mounting plate, so that speed reducer and drive rod, pressure head can be kept at corresponding height, and pressure rod and mounting groove limit speed reducer during rotation.

[0021] 7. The utility model provides a kind of back gap detection device of speed reducer, pressing cylinder drives the pressure head to press the speed reducer into the mounting groove and cooperate with the pressure rod to fix the speed reducer, so that speed reducer is connected with drive rod, and the pressure head can play the role of fixing speed reducer during rotation.

[0022] 8. The utility model provides a kind of back gap detection device of speed reducer, pressure head and press-in cylinder are installed on third mounting plate, it is convenient to adjust the position of both to make the connecting position correspond, press-in cylinder can accurately drive pressure head, improve work efficiency.

[0023] 9. The utility model provides a kind of back gap detection device of speed reducer, power component, fixed component and press-in component are fixedly connected on rack respectively by first base, second base and third base, to guarantee that the overall structure of detection device can stably work.

[0024] 10. The utility model provides a kind of back gap detection device of speed reducer, when user operates on control panel, instruction is transmitted to control system, to be able to control servo motor by control system.

DRAWINGS

[0025] Figure 1 It is a kind of back gap detection device structure schematic view of speed reducer provided by the utility model first embodiment.

[0026] Figure 2 It is power component structure schematic view provided by the utility model first embodiment.

[0027] Figure 3 It is fixed component structure schematic view provided by the utility model first embodiment.

[0028] Figure 4 It is press-in component structure schematic view provided by the utility model first embodiment.

[0029] Figure 5 It is speed reducer structure schematic view provided by the utility model first embodiment.

[0030] Figure mark explanation:

[0031] 1, power component;2, fixed component;3, press-in component;4, speed reducer;5, rack;

[0032] 11, servo motor;12, drive rod;13, coupling;14, first base;21, installation slot;22, spinning cylinder;23, pressure rod;24, second base;31, pressure head;32, press-in cylinder;33, third base;41, limit piece;51, control panel;

[0033] 141, first mounting plate;121, limit slot;142, first mounting hole;241, second mounting plate;331, third mounting plate;332, third mounting hole;511, touch screen;512, button.

Specific implementation ways

[0034] In order to make the purpose of the utility model, technical scheme and advantage more clear and explicit, the following will be further described in detail in combination with the drawings and the embodiment. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0035] It should be noted that the terms "first" and "second" and the like in the description and claims of the utility model are used to distinguish different objects, and are not used to describe a specific order.

[0036] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.

[0037] In the utility model, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0038] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For ordinary skilled persons in the art, the specific meaning of these terms in the utility model can be understood according to the specific situation.

[0039] In addition, the terms "mounting", "setting", "providing", "connecting", "connecting" should be broadly understood. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication between two devices, elements or components. For ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific situation.

[0040] It should be noted that the speed reducer is a power transmission mechanism used to reduce speed and increase torque, and its main function is to convert the high-speed low-torque output of the motor or other power source into low-speed high-torque output to drive mechanical equipment. Backlash is the gap between two gears in gear transmission, and the size of backlash directly affects the transmission accuracy and motion stability of the speed reducer. By detecting and adjusting the backlash, the vibration and noise during transmission can be reduced, and the operation efficiency and service life of the equipment can be improved. Backlash detection of the speed reducer is an important step to ensure the transmission accuracy and motion stability of the speed reducer, which directly affects the accuracy, efficiency and service life of the speed reducer.

[0041] Please refer to Figure 1 、 Figure 2 and Figure 3 , the utility model discloses a kind of speed reducer backlash detection devices, for the backlash detection of speed reducer 4, including power component 1, fixed component 2 and press-in component 3, power component 1, fixed component 2 and press-in component 3 are coaxially arranged, and power component 1 and press-in component 3 are respectively arranged at both ends of fixed component 2;Power component 1 includes servo motor 11, and mounting groove 21 is formed in fixed component 2, and speed reducer 4 is installed in mounting groove 21 and is fixed by press-in component 3 and fixed component 2, and after fixing, speed reducer 4 is driven to rotate by servo motor 11 to eliminate the influence of backlash, and servo motor 11 is reversed to original position again.

[0042] It can be understood that speed reducer 4 is placed in mounting groove 21 by press-in component 3, and speed reducer 4 is fixed by press-in component 3 and fixed component 2, so as to facilitate clamping to realize full detection, improve the stability of speed reducer 4, avoid displacement of speed reducer 4 during rotation to cause incorrect measurement results and other problems;After fixing speed reducer 4, servo motor 11 drives speed reducer 4 to work, and the influence of backlash is eliminated during the rotation of speed reducer 4, and the accuracy of speed reducer 4 is improved;Then servo motor 11 is reversed to original position, the size of backlash is read, and the commonly used high-precision feedback device in servo motor 11 has the characteristics of high precision and fast response, so that servo motor 11 has the functions of providing power and measuring backlash at the same time, without setting a component in the device for measuring and reading backlash, reducing detection cost, saving resources, reducing workstations, improving operation efficiency and reducing defective rate.

[0043] It should be noted that the fixed torque value of the preset rotation of the servo motor 11 is specified, and the fixed torque value specifies the range of the rotation of the servo motor 11 driving the speed reducer 4 and the rotation of the servo motor 11 returning to the original position. The fixed torque value specifies the range of the rotation of the servo motor 11 driving the speed reducer 4 and the rotation of the servo motor 11 returning to the original position, to avoid the rotation of the servo motor 11 driving and rotating out of range, affecting the stability of the whole device, and obtaining the size of backlash through the rotation process of the servo motor 11 according to the fixed torque value.

[0044] It can be understood that, since the backlash is the small angle or displacement change allowed by the gear system under the action of a fixed torque, the measurement of the backlash by the servo motor 11 is realized by applying a fixed torque to the servo motor 11 and measuring the displacement or angle change generated on the speed reducer 4, and then calculating the backlash of the speed reducer 4. In addition, the reverse rotation of the servo motor 11 can reduce the additional mechanical wear caused by the backlash, thereby prolonging the service life of the speed reducer 4, and more accurate position control can be realized after the speed reducer 4 is reversed to the original position.

[0045] In the embodiment, the feedback device integrated with the servo motor 11 is a 23-bit encoder, and the theoretical accuracy is 0.15 seconds, that is, 0.00004°. That is, the encoder can subdivide one circle of 360° into 8,388,608 position points, so that the high resolution provided by the 23-bit encoder can significantly improve the positioning accuracy of the system and has good anti-interference performance, while accurately reading the backlash data, the stability of the overall structure is improved.

[0046] Further, the power assembly 1 further comprises a driving rod 12, one end of the driving rod 12 is fixedly connected to the servo motor 11, and the other end is in contact with the speed reducer 4 and rotates with the servo motor 11, thereby driving the speed reducer 4 to rotate. The driving rod 12 serves as a medium between the servo motor 11 and the speed reducer 4, and can accurately drive the speed reducer 4 to rotate under the action of the servo motor 11, thereby improving the work efficiency and reducing the waste of efficiency.

[0047] It should be noted that when eliminating the influence of the backlash, the driving rod 12 is connected to the input end of the speed reducer 4, and the driving rod 12 is driven to rotate to eliminate the influence of the backlash between the gears in the speed reducer 4 on the working accuracy of the speed reducer 4.

[0048] Please refer to Figure 1 、 Figure 2 and Figure 5 , a limiting piece 41 is arranged on the input end of the speed reducer 4, and a limiting groove 121 is formed in the end portion of the driving rod 12. After the driving rod 12 is rotated to be connected to the input end of the speed reducer 4, the limiting piece 41 and the limiting groove 121 are matched and clamped, so that the driving rod 12 is more closely connected to the speed reducer 4, and the driving rod 12 can stably and safely drive the speed reducer 4 to rotate.

[0049] Alternatively, the positions of the limiting piece 41 and the limiting groove 121 can be interchanged.

[0050] Further, the power assembly 1 further comprises a shaft coupling 13 arranged at the end portion of the driving rod 12 connected to the servo motor 11. The shaft coupling 13 is used to firmly connect the servo motor 11 and the driving rod 12 together to rotate together, and transmit motion and torque, and can also compensate for the deviation between the two due to inaccurate manufacturing and installation, deformation during work or thermal expansion, etc.

[0051] Further, the power assembly 1 further comprises a first base 14, the first base 14 comprises three coaxially arranged first mounting plates 141, and three coaxially arranged first mounting holes 142 are respectively arranged on the first mounting plates 141, the servo motor 11 is mounted on the first mounting plate 141 away from the fixed assembly 2 and corresponds to the first mounting hole 142, and the driving rod 12 is arranged in the first mounting hole 142 and exposed to the side of the first mounting plate 141 close to the fixed assembly 2.

[0052] It can be understood that the servo motor 11 is mounted on the first mounting plate 141 to improve the stability during rotation of the servo motor 11, and the driving rod 12 is mounted in the first mounting hole 142, so that when the servo motor 11 drives the driving rod 12 to rotate, the driving rod 12 can move axially in the first mounting hole 142 to drive the speed reducer 4 to rotate.

[0053] Further, the three first mounting holes 142 are sized according to the different functions of the corresponding assemblies, and the gaps between the servo motor 11, the shaft coupling 13 and the driving rod 12 and the first mounting holes 142 are set according to the working requirements of the servo motor 11, the shaft coupling 13 and the driving rod 12, so that the servo motor 11, the shaft coupling 13 and the driving rod 12 have sufficient movement space.

[0054] Please refer to Figure 1 , Figure 2 and Figure 3 , the fixed assembly 2 further comprises a spinning air cylinder 22, a pressing rod 23 and a second base 24, the second base 24 comprises a second mounting plate 241, the mounting groove 21 is arranged on the second mounting plate 241, the pressing rod 23 is arranged above the mounting groove 21, and the spinning air cylinder 22 drives the pressing rod 23 to fix the speed reducer 4.

[0055] It can be understood that the height of the mounting groove 21 is flexibly adjusted through the second mounting plate 241, so that the speed reducer 4 and the driving rod 12 can be kept at a corresponding height, and the pressing rod 23 and the mounting groove 21 limit both ends of the speed reducer 4 during rotation to ensure that the speed reducer 4 can stably rotate in the mounting groove 21.

[0056] Please refer to Figure 1 , Figure 3 and Figure 4 , the pressing assembly 3 comprises a pressing head 31 and a pressing air cylinder 32, the pressing head 31 is arranged on the side close to the speed reducer 4, and the pressing air cylinder 32 drives the pressing head 31 to press the speed reducer 4 into the mounting groove 21 and cooperate with the pressing rod 23 to fix the speed reducer 4. The pressing air cylinder 32 drives the pressing head 31 to press the speed reducer 4 into the mounting groove 21 and cooperate with the pressing rod 23 to fix the speed reducer 4, so that the speed reducer 4 is connected with the power assembly 1, and the pressing head 31 can fix the speed reducer 4 during rotation.

[0057] It should be noted that the pressure head 31 is fixed to the output end of the speed reducer 4 to avoid the rotation of the output end affecting the accuracy of the backlash measurement when the power assembly 1 drives the rotation of the input end of the speed reducer 4.

[0058] Further, the pressing assembly 3 further comprises a third base 33, the third base 33 comprises two coaxially arranged third mounting plates 331, and coaxially arranged third mounting holes 332 are respectively formed on the third mounting plates 331, the pressure head 31 is detachably connected to the third mounting plate 331 close to the fixing assembly 2, and the pressing cylinder 32 is connected to the third mounting plate 331 away from the fixing assembly 2, and the pressure head 31 and the pressing cylinder 32 are fixedly connected through the third mounting hole 332.

[0059] It can be understood that the pressing cylinder 32 is installed on the third mounting plate 331 so that the pressing cylinder 32 can work stably, and the pressure head 31 can move along the axial direction through the third mounting hole 332, so that the pressure head 31 can press the speed reducer 4 into the mounting groove 21, and the work efficiency is improved.

[0060] It should be noted that the pressure head 31 can be replaced according to the model of different speed reducers 4 to realize universality and save cost.

[0061] It can be understood that the driving rod 12, the speed reducer 4 and the pressure head 31 are coaxially arranged, and in the process of eliminating the influence of the backlash, the pressure head 31 is responsible for fixing the output end of the speed reducer 4, so that the driving rod 12 can drive the input end of the speed reducer 4 to rotate stably, improve the precision and save the efficiency.

[0062] Further, the speed reducer backlash detection device further comprises a rack 5, the first base 14, the second base 24 and the third base 33 are fixedly connected on the rack 5. The power assembly 1, the fixing assembly 2 and the pressing assembly 3 are fixedly connected on the rack 5 through the first base 14, the second base 24 and the third base 33 respectively, so as to set the relative position between the three, so as to ensure that the overall structure of the speed reducer backlash detection device can work stably.

[0063] Further, the power assembly 1 further comprises a control system, the rack 5 further comprises a control panel 51, and the control system is electrically connected with the control panel 51 and the servo motor 11 respectively. When the user operates on the control panel 51, the instruction is transmitted to the control system, so that the servo motor 11 can be controlled through the control system.

[0064] Further, the control panel 51 is provided with a touch screen 511 and a button 512, the button 512 provides functions of turning on, turning off and resetting, etc., so as to quickly control the working state of the overall speed reducer backlash detection device; the user can also perform more fine control operation through the touch screen 511, such as controlling the fixed torque value of the servo motor 11 through the control system.

[0065] In summary, in combination withFigures 1 to 5 The working principle of the back gap detection device of the speed reducer provided by the first embodiment of the utility model is as follows:

[0066] The speed reducer 4 is put into the mounting groove 21 through the pressure head 31 controlled by the pressure cylinder 32, the servo motor 11 drives the input end of the speed reducer 4 to rotate through the driving rod 12, the speed reducer 4 is fixed in the mounting groove 21 through the pressure head 31 and the pressure rod 23 during the rotation process, and the output end is fixed by the pressure head 31, so that the driving rod 12 can stably drive the speed reducer 4 to rotate, the influence of the back gap in the speed reducer 4 is eliminated during the rotation process, and the size of the back gap in the speed reducer 4 is calculated by the servo motor 11 through the measured change of the internal angle or displacement of the speed reducer 4, and then the back gap detection is carried out, the precision and accuracy of the speed reducer 4 are improved.

[0067] Compared with the prior art, the back gap detection device of the speed reducer provided by the utility model has the following advantages:

[0068] 1. The back gap detection device of the speed reducer provided by the utility model eliminates the influence of the back gap after the speed reducer is driven to rotate by the servo motor, and then reads the gap size by rotating back to the original position, so that the component for measuring the gap is saved; specifically, the speed reducer is placed in the mounting groove through the pressure-in component, and the speed reducer is fixed through the pressure-in component and the fixing component, so that the stability of the speed reducer is improved, and problems such as incorrect measurement results caused by displacement of the speed reducer during the rotation process are avoided; after the speed reducer is fixed, the servo motor drives the speed reducer to work, the influence of the back gap is eliminated during the rotation process of the speed reducer, and the precision of the speed reducer is improved; then the servo motor reverses to the original position, the back gap size is read, the servo motor has the functions of providing power and measuring the back gap, and a component for measuring and reading the back gap does not need to be arranged in the device, so that the detection cost is reduced and resources are saved.

[0069] 2. The back gap detection device of the speed reducer provided by the utility model, the fixed torque value defines the range of the servo motor driving the speed reducer to rotate and the servo motor rotating back to the original position, so that the driving rotation and the rotation of the servo motor are prevented from deviating from the range, and the stability of the overall device is affected.

[0070] 3. The back gap detection device of the speed reducer provided by the utility model, the driving rod serves as a medium between the servo motor and the speed reducer, can accurately drive the speed reducer to rotate under the action of the servo motor, improves the operation efficiency, and reduces the waste of efficiency.

[0071] 4. The back gap detection device of the speed reducer provided by the utility model, the shaft coupling is used for firmly connecting the servo motor and the driving rod to rotate together, and transmits motion and torque, and can also compensate for the deviation between the two due to inaccurate manufacturing and installation, deformation during work or thermal expansion and the like.

[0072] 5. The utility model provides a kind of back gap detection device of speed reducer, first mounting hole ensures that driving rod is stably installed, and with the position of speed reducer corresponds, so that servo motor can drive driving rod to rotate stably.

[0073] 6. The utility model provides a kind of back gap detection device of speed reducer, can be flexibly adjusted installation groove height by second mounting plate, so that speed reducer and driving rod, anvil can be kept in corresponding height, and in the process of rotation, press bar and installation groove limit speed reducer.

[0074] 7. The utility model provides a kind of back gap detection device of speed reducer, press into cylinder drive the anvil is pressed into the installation groove of the speed reducer and cooperates the speed reducer with the press bar fixed, so that speed reducer is connected with driving rod, and in the process of rotation, anvil can play the role of fixing speed reducer.

[0075] 8. The utility model provides a kind of back gap detection device of speed reducer, anvil and press into cylinder are installed on third mounting plate, it is convenient to adjust the position of both to make connection position correspond, press into cylinder can accurately drive anvil, improve work efficiency.

[0076] 9. The utility model provides a kind of back gap detection device of speed reducer, power component, fixed component and press into component are fixedly connected on rack by first base, second base and third base respectively, to ensure that the overall structure of detection device can stably work.

[0077] 10. The utility model provides a kind of back gap detection device of speed reducer, when user operates on control panel, instruction is transmitted to control system, so that servo motor can be controlled by control system.

[0078] The above-mentioned is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the principles of the utility model are included in the protection scope of the utility model.

Claims

1. A back lash detection device for a speed reducer back lash detection, characterized by: The application relates to a power assembly, a fixing assembly and a pressing assembly, wherein the power assembly, the fixing assembly and the pressing assembly are coaxially arranged, the power assembly and the pressing assembly are arranged at two ends of the fixing assembly respectively, the power assembly comprises a servo motor, an installation groove is formed in the fixing assembly, a speed reducer is installed in the installation groove and fixed through the pressing assembly and the fixing assembly, the speed reducer is driven to rotate by the servo motor to eliminate the influence of backlash, and the servo motor is driven to rotate back to the original position.

2. The back lash detection device for a speed reducer according to claim 1, wherein: The servo motor is preset with a fixed torque value of rotation, and the fixed torque value of rotation defines the range of the servo motor driving the speed reducer to rotate and the servo motor rotating back to the original position.

3. The back lash detection device for a speed reducer according to claim 1, wherein: The power assembly further comprises a driving rod, one end of the driving rod is fixedly connected to the servo motor, the other end of the driving rod is in contact with the speed reducer and rotates with the servo motor, and the driving rod drives the speed reducer to rotate.

4. The back lash detection device for a speed reducer according to claim 3, wherein: The power assembly further comprises a shaft coupling, and the shaft coupling is arranged at the end of the driving rod connected to the servo motor.

5. A back lash detection device for a speed reducer as set forth in claim 4, wherein: The power assembly further comprises a first base, the first base comprises three coaxially arranged first installation plates, three coaxially arranged first installation holes are formed in the first installation plates respectively, the servo motor is installed on the first installation plate away from the fixing assembly and corresponds to the first installation hole, the driving rod is arranged in the first installation hole and exposed on the side of the first installation plate close to the fixing assembly.

6. A back lash detection device for a speed reducer as set forth in claim 5, wherein: The fixing assembly further comprises a spinning air cylinder, a pressing rod and a second base, the second base comprises a second installation plate, the installation groove is arranged on the second installation plate, the pressing rod is arranged above the installation groove, and the spinning air cylinder drives the pressing rod to fix the speed reducer.

7. A back lash detection device for a speed reducer as set forth in claim 6, wherein: The pressing assembly comprises a pressing head and a pressing air cylinder, the pressing head is arranged on the side close to the speed reducer, and the pressing air cylinder drives the pressing head to press the speed reducer into the installation groove and fix the speed reducer in cooperation with the pressing rod.

8. A back lash detection device for a speed reducer as set forth in claim 7, wherein: The pressing assembly further comprises a third base, the third base comprises two coaxially arranged third installation plates, coaxially arranged third installation holes are formed in the third installation plates respectively, the pressing head is detachably connected to the third installation plate close to the fixing assembly, the pressing air cylinder is connected to the third installation plate away from the fixing assembly, and the pressing head and the pressing air cylinder are fixedly connected through the third installation holes.

9. A back lash detection device for a speed reducer as set forth in claim 8, wherein: The application further comprises a rack, and the first base, the second base and the third base are fixedly connected to the rack.

10. A back lash detection device for a speed reducer as set forth in claim 9, wherein: The power assembly further comprises a control system, the rack further comprises a control panel, and the control system is electrically connected to the control panel and the servo motor respectively.

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