Micro motor worm assembly equipment integrated with coaxiality detection mechanism

Abstract

The invention relates to the technical field of micro motor assembly and detection, in particular to micro motor worm assembly equipment integrated with a coaxiality detection mechanism. The device comprises a device rack, a worm assembly module, a motor fixing module, a coaxiality detection module and an identification recording module. The worm assembly module achieves accurate alignment through a multi-dimensional adjusting assembly, the coaxiality detection module detects the coaxiality of a worm and a driving shaft in real time through a laser measuring instrument, and the recognition recording module records data through an industrial code scanning gun. According to the technical scheme, through the flexibility of the multi-dimensional adjusting assembly, the real-time monitoring capability of the pressure measuring assembly, the high-precision detection function of the laser measuring instrument and the data recording characteristic of the industrial code scanning gun, the high efficiency and reliability of the assembly process of the micro motor worm are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of micro motor assembly and detection, and particularly relates to a micro motor worm assembly equipment integrated with a coaxiality detection mechanism. BACKGROUND

[0002] With the wide application of micro motors in automobile door lock actuators, precision instruments and small automatic devices, the precision requirement for the assembly of the worm drive end of the motor is increasing. As a key component connecting the motor and the gear transmission system, the coaxiality of the assembled worm directly affects the meshing precision, running stability and service life of the motor and the gear. In the prior art, the worm is usually pressed and assembled onto the motor drive shaft by using an automatic assembly equipment, but there is generally a lack of real-time detection capability for the installation position of the worm during the assembly process or after the assembly is completed, especially a lack of online detection function for the coaxiality between the worm and the motor drive shaft. This leads to problems such as poor meshing, increased noise, and reduced transmission efficiency in subsequent assembly, which seriously affects the overall performance and reliability of the product.

[0003] A patent document with the publication number CN113300548B discloses a motor assembly equipment and an assembly method thereof, and the disclosure date is July 18, 2025. The patent proposes a motor assembly equipment integrated with a shaft virtual position detection mechanism and a core bending test mechanism, which is used for detecting the axial virtual position and the radial runout of the motor shaft, so as to realize the evaluation of the assembly quality of the motor rotor. The equipment improves the automation degree and the product qualification rate by integrating the detection link into the assembly process. However, the technical solution is mainly aimed at the assembly process of the motor rotor and the iron shell, the detection object is the rotating shaft of the motor body, and it does not involve the installation structure of the drive end worm, nor does it set a special detection module for the coaxiality between the worm and the drive shaft. In addition, the equipment cannot monitor the position deviation, inclination state or assembly force during the worm pressing process, and it is difficult to meet the demand for high-precision assembly of the micro motor worm.

[0004] Therefore, it is necessary to design a micro motor worm assembly equipment integrated with a coaxiality detection mechanism to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a micro motor worm assembly equipment integrated with a coaxiality detection mechanism to overcome the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions: A micro motor worm assembly equipment integrated with a coaxiality detection mechanism, comprising: an equipment rack as a basic support component of the entire equipment; The worm assembly module is arranged on the working platform of the equipment rack, comprising a sliding rail, a moving seat slidably arranged on the sliding rail, a first servo driving element for driving the moving seat to move along the sliding rail, a multi-dimensional adjusting assembly arranged on the moving seat, and a worm clamping block arranged on the multi-dimensional adjusting assembly. The motor fixing module is arranged in cooperation with the worm assembly module, comprising a motor support seat fixed on the equipment rack, a motor positioning tool arranged on the motor support seat, a pressure measuring assembly arranged at the rear side of the motor positioning tool, and a power supply module arranged on the motor support seat. The coaxiality detection module is located between the worm assembly module and the motor fixing module, comprising a laser measuring instrument fixed on the equipment rack. The identification recording module is arranged above the motor fixing module, comprising a camera support fixed on the equipment rack, and an industrial code scanning gun arranged on the camera support.

[0007] Preferably, the multi-dimensional adjusting assembly comprises an adjusting base fixed on the moving seat, a Z-axis sliding block slidably arranged on the adjusting base and moving in the vertical direction, a Y-axis sliding block slidably arranged on the Z-axis sliding block and moving in the horizontal direction, and a locking device for fixing the Z-axis sliding block and the Y-axis sliding block.

[0008] Preferably, the locking device comprises a locking bolt penetrating through the Z-axis sliding block and the Y-axis sliding block, and a locking nut cooperating with the locking bolt.

[0009] Preferably, the worm assembly module further comprises a displacement measuring assembly, the displacement measuring assembly comprising a measuring support fixed on the moving seat, a displacement sensor arranged on the measuring support, and a signal processing unit connected with the displacement sensor.

[0010] Preferably, the pressure measuring assembly comprises a pressure sensor fixed at the rear side of the motor positioning tool, and a data acquisition unit connected with the pressure sensor.

[0011] Preferably, the power supply module comprises a transverse driving cylinder arranged on the motor support seat, a longitudinal driving cylinder driven by the transverse driving cylinder, a conductive plate arranged on the output end of the longitudinal driving cylinder, and a conductive contact arranged at the bottom of the conductive plate.

[0012] Preferably, the motor fixing module further comprises a pressing module, the pressing module comprising a pressing cylinder fixed on the equipment rack, a pressing block arranged on the output end of the pressing cylinder, and a buffer pad arranged at the bottom of the pressing block.

[0013] The beneficial effects of the present application are: the present technical scheme realizes accurate alignment of the worm clamping block through the multi-dimensional adjusting assembly, ensures the alignment of the center axis of the worm and the motor driving shaft, and avoids assembly errors caused by position deviation; The displacement data and pressure data in the press-fitting process are monitored in real time through the displacement measuring assembly and the pressure measuring assembly, so as to ensure the stability and consistency of the press-fitting process; The coaxiality of the worm and the motor driving shaft is detected in real time through the laser measuring instrument, and assembly errors are found and corrected in time, so as to improve the assembly precision and product reliability; The motor code information is identified through the industrial code scanning gun, and the related data in the press-fitting process are input into the system for archiving, so as to facilitate subsequent tracing and analysis. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the micro motor worm assembly equipment integrated with the coaxiality detection mechanism of the present application; Figure 2 It is a partial schematic view of the micro motor worm assembly equipment integrated with the coaxiality detection mechanism of the present application; Figure 3 It is a worm assembly module and motor fixing module structural schematic view of the micro motor worm assembly equipment integrated with the coaxiality detection mechanism of the present application; Figure 4 It is a worm assembly module schematic view of the micro motor worm assembly equipment integrated with the coaxiality detection mechanism of the present application; Figure 5 It is a multi-dimensional adjusting assembly schematic view of the micro motor worm assembly equipment integrated with the coaxiality detection mechanism of the present application; Figure 6 It is a motor fixing module schematic view of the micro motor worm assembly equipment integrated with the coaxiality detection mechanism of the present application; Figure 7 It is a second perspective schematic view of the motor fixing module of the micro motor worm assembly equipment integrated with the coaxiality detection mechanism of the present application; In the figure: 1, equipment rack; 2, worm assembly module; 21, first servo driving part; 22, displacement measuring assembly; 23, sensing assembly; 3, motor fixing module; 4, coaxiality detection module; 5, identification and recording module; 6, sliding rail; 7, moving seat; 8, multi-dimensional adjusting assembly; 81, adjusting base; 82, Z-axis sliding block; 83, Y-axis sliding block; 84, locking device; 9, worm clamping block; 10, motor support seat; 11, motor positioning tooling; 12, pressure measuring assembly; 13, power supply module; 14, pressing module; 141, pressing cylinder; 142, pressing block; 15, laser measuring instrument; 16, industrial code scanning gun; 131, transverse driving cylinder; 132, longitudinal driving cylinder; 133, conductive plate; 134, conductive contact Detailed Implementation

[0015] Reference Figures 1 to 7 A micro motor worm gear assembly device integrating a coaxiality detection mechanism includes a device frame 1, a worm gear assembly module 2 set on the working platform of the device frame 1, a motor fixing module 3 set in conjunction with the worm gear assembly module 2, a coaxiality detection module 4 located between the worm gear assembly module 2 and the motor fixing module 3, and an identification and recording module 5 set above the motor fixing module 3.

[0016] The equipment frame 1 is the basic support component of the entire equipment. It is made of high-strength steel, providing excellent stability and vibration resistance. Multiple mounting holes are provided on the working platform of the equipment frame 1 for fixing various functional modules. The worm gear assembly module 2 is bolted to one side of the equipment frame 1, while the motor fixing module 3 is bolted to the other side, leaving sufficient operating space between them to facilitate alignment and press-fitting of the worm gear and the motor drive shaft. The coaxiality detection module 4 is fixed to the working platform of the equipment frame 1 by fasteners, located between the worm gear assembly module 2 and the motor fixing module 3, with its measuring end facing the joint between the motor drive shaft and the worm gear. The identification and recording module 5 is mounted via a mounting bracket, with its lens facing the motor coding area.

[0017] The worm gear assembly module 2 includes a slide rail 6, a movable seat 7 slidably mounted on the slide rail 6, a first servo drive 21 that drives the movable seat 7 to move along the slide rail 6, a multi-dimensional adjustment assembly 8 mounted on the movable seat 7, and a worm gear clamping block 9 mounted on the multi-dimensional adjustment assembly 8. The slide rail 6 is fixed to the working platform of the equipment frame 1 by bolts, and its length direction is parallel to the central axis of the motor fixing module 3. The movable seat 7 is slidably connected to the slide rail 6 by a slider, and the first servo drive 21 is connected to the movable seat 7 by a coupling, thereby driving the movable seat 7 to move linearly along the slide rail 6. The multi-dimensional adjustment assembly 8 includes an adjustment base 81 fixed on the movable seat 7, a Z-axis slider 82 slidably mounted on the adjustment base 81 and moving vertically, a Y-axis slider 83 slidably mounted on the Z-axis slider 82 and moving horizontally, and a locking device 84 for fixing the Z-axis slider and the Y-axis slider. The adjusting base 81 is fixed to the top of the movable base 7 by bolts. The Z-axis slider 82 is slidably connected to the adjusting base 81 via a dovetail groove structure, and the Y-axis slider 83 is slidably connected to the Z-axis slider 82 via a dovetail groove structure. The locking device 84 includes a locking bolt passing through the Z-axis slider 82 and the Y-axis slider 83, and a locking nut 86 that mates with the locking bolt 85. By tightening the locking bolt and the locking nut, the Z-axis slider 82 and the Y-axis slider 83 can be fixed in the desired position.

[0018] The worm clamping block 9 is retractably arranged in the Y-axis sliding block 83, and a spring clamping mechanism is arranged in the worm clamping block 9, which is used to top the worm clamping block 9, so that the worm clamping block 9 is retractably arranged in the Y-axis sliding block 83. A displacement measurement assembly 22 is arranged on one side of the moving seat 7, which includes a measurement support fixed on the moving seat 7, a displacement sensor mounted on the measurement support, and a signal processing unit connected with the displacement sensor. The probe of the displacement sensor faces the side of the moving seat 7, which is used to measure the displacement data of the moving seat 7 in real time. Induction assemblies 23 are arranged on both sides of the worm clamping block 9, which include an induction bracket fixed on the worm clamping block 9 and a photoelectric sensor mounted on the induction bracket, and the detection end of the photoelectric sensor faces the center position of the worm clamping block 9, which is used to detect whether the worm is correctly placed.

[0019] The motor fixing module 3 includes a motor support seat 10 fixed on the equipment rack 1, a motor positioning tool 11 mounted on the motor support seat 10, a pressure measurement assembly 12 arranged on the rear side of the motor positioning tool 11, and a power supply module 13 arranged on the motor support seat 10.

[0020] The motor support seat 10 is fixed on the working platform of the equipment rack 1 by bolts, and the top of the motor support seat 10 is provided with a mounting plane for fixing the motor positioning tool 11.

[0021] The pressure measurement assembly 12 includes a pressure sensor fixed on the rear side of the motor positioning tool 11 and a data acquisition unit connected with the pressure sensor. The pressure sensor is fixed on the rear side of the positioning plate by bolts, and the front end of the pressure sensor is in contact with the motor, which is used to measure the pressure data in the pressing process in real time.

[0022] The power supply module 13 includes a transverse drive air cylinder 131 mounted on the motor support seat 10, a longitudinal drive air cylinder 132 driven by the transverse drive air cylinder 131, a conductive plate 133 mounted on the output end of the longitudinal drive air cylinder 132, and a conductive contact 134 arranged on the bottom of the conductive plate 133. The transverse drive air cylinder 131 is fixed on the side of the motor support seat 10 by bolts, the longitudinal drive air cylinder 132 is fixed on the output end of the transverse drive air cylinder by bolts, the conductive plate 133 is fixed on the output end of the longitudinal drive air cylinder 132 by bolts, and the conductive contact 134 is fixed on the bottom of the conductive plate by welding or by a fixed manner.

[0023] A pressing module 14 is arranged on one side of the motor positioning tool 11, which includes a pressing air cylinder 141 fixed on the equipment rack 1, a pressing block 142 mounted on the output end of the pressing air cylinder 141, and a buffer pad arranged on the bottom of the pressing block. The pressing air cylinder 141 is fixed on the equipment rack 1 by bolts, the pressing block 142 is fixed on the output end of the pressing air cylinder by bolts, and the buffer pad is fixed on the bottom of the pressing block 142 by adhesive.

[0024] The coaxiality detection module 4 includes a laser measuring instrument 15 fixed on the equipment rack 1, a signal processing unit connected with the laser measuring instrument 15, and a display terminal connected with the signal processing unit. The laser measuring instrument 15 is fixed on the working platform of the equipment rack 1 by bolts, and its measuring end faces the joint between the motor drive shaft and the worm, which is used to detect the coaxiality of the worm and the motor drive shaft in real time. The signal processing unit is connected with the laser measuring instrument 15 through a cable, and the display terminal is connected with the signal processing unit through a cable, which is used to display the detection results.

[0025] The identification recording module 5 includes a camera support fixed on the equipment rack 1, an industrial code scanning gun 16 installed on the camera support, and an image processing unit connected with the industrial code scanning gun 16. The camera support is fixed on the equipment rack 1 by bolts, and the industrial code scanning gun 16 is fixed on the camera support by bolts, with its lens facing the coding area of the motor, which is used to identify the coding information of the motor. The image processing unit is connected with the industrial code scanning gun 16 through a cable, which is used to process image data and record relevant data into the system for archiving.

[0026] Specifically, in the process of assembling the micro motor worm, it is necessary to first ensure that the worm clamping block 9 is accurately aligned with the central axis of the motor drive shaft. The operator adjusts the positions of the Z-axis slider and the Y-axis slider in the multi-dimensional adjusting assembly 8 to gradually complete the alignment operation. Specifically, the Z-axis slider moves in the vertical direction to adjust the height of the worm clamping block 9, while the Y-axis slider moves in the horizontal direction to fine-tune the lateral position of the worm clamping block 9. After both are adjusted to the appropriate position, the locking device is used to fix the positions of the Z-axis slider and the Y-axis slider, thereby ensuring the stability and alignment accuracy of the worm clamping block 9. In this process, the photoelectric sensor detects in real time whether the worm is correctly placed on the worm clamping block 9 and feeds back signals through its detection end, avoiding subsequent assembly failure caused by incorrect installation of the worm.

[0027] The motor to be assembled is placed in the motor positioning tool 11. After starting the pressing cylinder, the pressing block 142 moves downward, and the buffer pad presses the top of the motor, further enhancing the stability of the motor.

[0028] The first servo drive is started, the moving seat 7 is driven to move linearly along the slide rail 6, the worm clamping block 9 gradually approaches the motor drive shaft. In this process, the displacement sensor in the displacement measurement assembly records the displacement data of the moving seat 7 in real time, and the data is transmitted to the system through the signal processing unit, at the same time, the pressure sensor in the pressure measurement assembly 12 starts to monitor the pressure data in the pressing process in real time, to ensure that the pressing force is moderate and uniformly distributed, to avoid deformation or damage of the motor shell due to excessive pressure. These data can not only be used to monitor the progress of the worm assembly, but also provide a reference basis for subsequent process optimization. When the worm clamping block 9 approaches the motor drive shaft, the first servo drive controls the worm to be pressed into the end of the motor drive shaft at a precise speed, completing the preliminary assembly.

[0029] After the worm pressing is completed, the reset, the coaxiality detection module 4 starts to work. The measuring end of the laser measuring instrument 15 faces the joint part of the motor drive shaft and the worm, emits a laser beam and receives the reflected signal, and calculates the coaxiality deviation value between the worm and the motor drive shaft through the signal processing unit. The deviation value is displayed on the display terminal in real time for the operator to judge the assembly quality. If the detection result shows that the coaxiality exceeds the allowed range, it is directly recycled.

[0030] The recognition recording module 5 starts the industrial code scanning gun 16, the lens of which faces the motor coding area, captures and identifies the coding information of the motor. The image processing unit processes the received image data, extracts the key information and enters the system archive together with the displacement data, pressure data and coaxiality detection data in the pressing process. This link not only realizes the whole process traceability of the assembly process, but also provides data support for subsequent quality analysis and improvement.

[0031] The beneficial aspects of the present application, the technical scheme realizes the accurate alignment of the worm clamping block through the multi-dimensional adjustment assembly, ensures that the central axes of the worm and the motor drive shaft are aligned, and avoids assembly errors caused by position deviation; The displacement measurement assembly and the pressure measurement assembly monitor the displacement data and pressure data in the pressing process in real time, to ensure the stability and consistency of the pressing process; The laser measuring instrument detects the coaxiality of the worm and the motor drive shaft in real time, discovers and corrects the assembly error in time, and improves the assembly precision and product reliability; The industrial code scanning gun identifies the motor coding information, and records the related data in the pressing process into the system for archiving, which is convenient for subsequent tracing and analysis.

[0032] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A micro motor worm assembling apparatus integrated with coaxiality detecting mechanism, characterized by: It includes: The device rack (1) is the basic support component of the whole device; The worm assembly module (2) is arranged on the working platform of the device rack (1), which comprises a sliding rail (6), a moving seat (7) slidably arranged on the sliding rail (6), a first servo driving element for driving the moving seat (7) to move along the sliding rail (6), a multi-dimensional adjusting assembly (8) arranged on the moving seat (7), and a worm clamping block (9) arranged on the multi-dimensional adjusting assembly (8); The motor fixing module (3) is arranged in cooperation with the worm assembly module (2), which comprises a motor support seat (10) fixed on the device rack (1), a motor positioning tool (11) arranged on the motor support seat (10), a pressure measuring assembly (12) arranged on the rear side of the motor positioning tool (11), and a power supply module (13) arranged on the motor support seat (10); The coaxiality detection module (4) is located between the worm assembly module (2) and the motor fixing module (3), which comprises a laser measuring instrument (15) fixed on the device rack (1); The identification recording module (5) is arranged above the motor fixing module (3), which comprises a camera support fixed on the device rack (1), and an industrial code scanning gun (16) arranged on the camera support.

2. The micro motor worm assembling apparatus integrated with coaxiality detecting mechanism according to claim 1, characterized in that: The multi-dimensional adjusting assembly (8) comprises an adjusting base (81) fixed on the moving seat (7), a Z-axis sliding block (82) slidably arranged on the adjusting base (81) and moving in the vertical direction, a Y-axis sliding block (83) slidably arranged on the Z-axis sliding block (82) and moving in the horizontal direction, and a locking device (84) for fixing the Z-axis sliding block (82) and the Y-axis sliding block (83).

3. The micro motor worm assembling apparatus integrated with coaxiality detecting mechanism according to claim 2, characterized in that: The locking device (84) comprises a locking bolt (85) penetrating through the Z-axis sliding block (82) and the Y-axis sliding block (83), and a locking nut (86) cooperating with the locking bolt (85).

4. The micro motor worm assembling apparatus integrated with coaxiality detecting mechanism according to claim 1, characterized in that: The worm assembly module (2) further comprises a displacement measuring assembly, the displacement measuring assembly comprising a measuring support fixed on the moving seat (7), a displacement sensor arranged on the measuring support, and a signal processing unit connected with the displacement sensor.

5. The micro motor worm assembling apparatus integrated with coaxiality detecting mechanism according to claim 1, characterized in that: The pressure measuring assembly (12) comprises a pressure sensor fixed on the rear side of the motor positioning tool (11), and a data acquisition unit connected with the pressure sensor.

6. The micro motor worm assembling apparatus integrated with coaxiality detecting mechanism according to claim 1, characterized in that: The power supply module (13) comprises a transverse driving cylinder (131) arranged on the motor support seat (10), a longitudinal driving cylinder (132) driven by the transverse driving cylinder (131), a conductive plate (133) arranged on the output end of the longitudinal driving cylinder (132), and a conductive contact (134) arranged at the bottom of the conductive plate (133).

7. The micro motor worm assembling apparatus integrated with coaxiality detecting mechanism according to claim 1, characterized in that: The motor fixing module (3) further comprises a pressing module (14), the pressing module (14) comprises a pressing cylinder (141) fixed on the equipment rack (1), a pressing block (142) installed on the output end of the pressing cylinder (141), and a buffer pad arranged at the bottom of the pressing block (142).

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