Motor glue cover PQ side terminal height detection mechanism and detection method

Abstract

The application discloses a motor rubber cover PQ side terminal height detection mechanism, which is used for detecting the assembled P and Q side terminals and comprises a driving assembly, a pre-pressing assembly, a conduction assembly and a displacement sensor. The driving assembly is connected with the pre-pressing assembly and drives the pre-pressing assembly to approach the motor rubber cover. The conduction assembly is slidably connected with the pre-pressing assembly and is signal-connected with the displacement sensor, and the relative position between the pre-pressing assembly and the displacement sensor is fixed. When detection is performed, the conduction assembly first presses the top end of the terminal, the driving assembly continues to drive the pre-pressing assembly to abut against the rubber cover, and the displacement sensor detects the displacement of the conduction assembly relative to the pre-pressing assembly, so that the height of the terminal is determined. The mechanism realizes accurate detection through the cooperation of the assemblies, and has the following advantages: conventional components are adopted, the structure is simple, and the cost is low; the assembly has high compactness and integration, and the production line space is saved; detection can be completed through one-time pressing, and the efficiency is high and the result is accurate.

Description

Technical Field

[0001] This invention relates to the field of motor manufacturing, and in particular to a height detection mechanism and method for the PQ side terminal of a motor cover. Background Technology

[0002] Brushed motors are widely used actuators in automobiles. A brushed motor consists of a housing and a motor cover at the end. During operation, external current is transmitted through the conductive terminals on the motor cover, thereby driving the brushed motor to control the operation of mechanisms such as windows, wipers, door locks, fuel pump, and throttle.

[0003] The aforementioned motor cover is used to support conductive terminals for electrical connection and also serves as an insulating cover component. This motor cover typically features two types of conductive terminals: a P-side terminal and a Q-side terminal, arranged in a mirror-symmetrical configuration. These terminals are used to form the electrical path connection for the motor, satisfying the motor's power supply and circuit continuity requirements.

[0004] In existing technologies, after the P-side terminals or Q-side terminals are installed on the motor cover, a separate testing device is needed to determine whether the terminal installation is qualified. This is not only cumbersome and inefficient, but also increases equipment investment. How to efficiently and quickly determine whether the P-side terminals or Q-side terminals are installed correctly within limited production line space has always been a challenging problem in the industry.

[0005] Therefore, the aforementioned problems in the existing technology still need to be improved. Summary of the Invention

[0006] The main objective of this invention is to provide a height detection mechanism and method for the PQ side terminals of a motor cover. Through the ingenious cooperation of the pre-pressing component and the conduction component, the problem of inconvenience in installing and detecting the P-side terminals or Q-side terminals on the motor cover is solved.

[0007] The first aspect of the present invention provides a height detection mechanism for the PQ side terminals of a motor cover, used for detecting the P-side and Q-side terminals of a motor cover after assembly. The mechanism includes: a driving component, a pre-pressing component, a conductive component, and a displacement sensor. The driving component is connected to the pre-pressing component and is used to drive the pre-pressing component closer to the motor cover. The conductive component is slidably connected to the pre-pressing component and is signal-connected to the displacement sensor. The relative positions of the pre-pressing component and the displacement sensor are fixed. During the process of the driving component driving the pre-pressing component closer to the motor cover, the conductive component first contacts and presses the top of the P-side or Q-side terminal. The driving component continues to drive the pre-pressing component and the displacement sensor closer to the motor cover until the pre-pressing component abuts against the motor cover. The displacement sensor detects the displacement of the conductive component relative to the pre-pressing component and determines the height of the P-side or Q-side terminal on the motor cover based on the displacement.

[0008] Preferably, the conductive component and the pre-compression component are slidably connected as follows: the pre-compression component is provided with a first slide rail, and the conductive component is disposed on the first slide rail; when the conductive component contacts and presses the top of the P-side terminal or the Q-side terminal, the conductive component remains stationary, and the first slide rail slides relative to the conductive component, so that the pre-compression component continues to approach the motor cover under the drive of the drive component.

[0009] Preferably, the pre-compression assembly includes a pre-compression plate and a mounting plate, wherein there are two mounting plates, which are respectively disposed at both ends of the pre-compression plate. One end of each mounting plate is connected to the pre-compression plate, and the other end is connected to the drive assembly. The first slide rail is disposed on the mounting plate. The pre-compression plate is provided with a clearance hole, which is used to avoid the P-side terminal or the Q-side terminal, so that the conductive assembly can contact and compress the top end of the P-side terminal or the Q-side terminal through the clearance hole.

[0010] Preferably, the transmission component is connected to the displacement sensor signal in the following manner: a first connecting rod is provided between the transmission component and the displacement sensor, the first connecting rod is fixedly connected to the transmission component, and the first connecting rod is slidably connected to the displacement sensor; the displacement sensor determines the displacement of the transmission component relative to the preload component by detecting the relative displacement of the first connecting rod.

[0011] Preferably, a first spring is sleeved on the first connecting rod, one end of the first spring is fixedly connected to the first connecting rod or the transmission assembly, and the other end of the first spring is connected to the displacement sensor.

[0012] Preferably, the conductive assembly includes a conductive plate, a conductive block, a second connecting rod, and a second spring. The conductive plate is T-shaped, and includes a vertical arm and a horizontal arm that are perpendicular to each other. The horizontal arm is connected to the conductive block, one side of the vertical arm is connected to the first connecting rod, and the other side of the vertical arm is used to contact and press the top of the P-side terminal or the Q-side terminal. The conductive block is slidably connected to the pre-compression assembly, and the second connecting rod is parallel to the sliding direction of the conductive block relative to the pre-compression assembly. The conductive block and the second spring are sequentially sleeved on the second connecting rod.

[0013] Preferably, the assembly further includes a mounting bracket, on which the drive component is mounted. The mounting bracket has a second slide rail, and the preload component is slidably connected to the mounting bracket via the second slide rail. The drive component includes a cylinder, and the output shaft of the cylinder is connected to the preload component. A magnetic element is provided at a preset position on the cylinder output shaft, and a magnetic sensor is provided on the mounting bracket. When the cylinder drives the preload component to abut against the motor cover, the relative distance between the magnetic element and the magnetic sensor is less than a preset value.

[0014] Preferably, the number of the pre-compression component is one set, and the number of the transmission component and the displacement sensor are two sets each. The two sets of the transmission component and the two sets of the displacement sensor are respectively located at both ends of the pre-compression component, and the two sets of the transmission component and the two sets of the displacement sensor correspond one-to-one. The two sets of the transmission component are respectively directly opposite to the two P-side terminals or the two Q-side terminals installed on the motor cover.

[0015] A second aspect of the present invention provides a method for detecting the height of the PQ-side terminal of a motor cover, used in any of the motor cover PQ-side terminal height detection mechanisms as described in the first aspect, comprising:

[0016] The preload assembly is driven to approach the motor cover by the drive assembly;

[0017] The conductive component is slidably connected to the preload component. When the conductive component contacts the top of the pressure P-side terminal or Q-side terminal:

[0018] The drive assembly continues to drive the preload assembly closer to the motor cover;

[0019] The displacement of the conductive component relative to the preload component is detected by a displacement sensor;

[0020] The installation height of the P-side terminal or Q-side terminal installed on the motor cover is determined based on the displacement.

[0021] Preferably, before the pre-pressure assembly is driven by the drive assembly to approach the motor cover, the method further includes:

[0022] The standard height at which the P-side terminal or Q-side terminal on the motor cover is installed is taken as the zero value.

[0023] Based on the displacement, the mounting height of the P-side terminal or Q-side terminal installed on the motor cover is determined. Then, the process further includes:

[0024] The absolute value of the difference between the displacement and the zero position value is obtained as the measured value.

[0025] When the measured value is greater than or equal to the preset value, it is determined that the installation of the P-side terminal or Q-side terminal on the motor cover is unqualified.

[0026] In summary, the motor cover PQ side terminal height detection mechanism provided by this invention is used to detect the assembled P and Q side terminals, and includes a drive, pre-pressure, and transmission component and a displacement sensor. The drive component connects to and drives the pre-pressure component close to the motor cover. The transmission component is slidably connected to the pre-pressure component and signal-connected to the displacement sensor, and the relative positions of the pre-pressure component and the displacement sensor are fixed. During detection, the transmission component first presses down on the top of the terminal, and the drive component continues to drive until the pre-pressure component abuts against the cover. The displacement sensor detects the displacement of the transmission component relative to the pre-pressure component, thereby determining the terminal height. This mechanism achieves accurate detection through component cooperation, with significant advantages: it uses conventional components, has a simple structure and low cost; the components are compact and highly integrated, saving production line space; and the detection can be completed in one press, resulting in high efficiency and accurate results. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 A three-dimensional schematic diagram of the motor cover for the P-side terminal;

[0029] Figure 2 This is a side view of the motor cover for the P-side terminal;

[0030] Figure 3 A three-dimensional schematic diagram of the motor cover for the Q-side terminal;

[0031] Figure 4 This is a side view of the motor cover for the Q-side terminal;

[0032] Figure 5 A three-dimensional schematic diagram of the PQ side terminal assembly machine;

[0033] Figure 6 This is a top view of the PQ side terminal assembly machine;

[0034] Figure 7 A perspective view of a working state of the motor cover PQ side terminal height detection mechanism provided by the present invention;

[0035] Figure 8 This is a front view of the working state of the motor cover PQ side terminal height detection mechanism provided by the present invention.

[0036] Figure 9 This is a perspective view of another working state of the motor cover PQ side terminal height detection mechanism provided by the present invention;

[0037] Figure 10This is a front view of another working state of the motor cover PQ side terminal height detection mechanism provided by the present invention;

[0038] Figure 11 This is a perspective view of another working state of the motor cover PQ side terminal height detection mechanism provided by the present invention;

[0039] Figure 12 This is a front view of another working state of the motor cover PQ side terminal height detection mechanism provided by the present invention;

[0040] Figure 13 The flowchart shows the method for detecting the height of the PQ side terminal of the motor cover provided by the present invention. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0043] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0044] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0045] Brushed motors are widely used actuating drive components in automobiles. A brushed motor consists of a housing and a rubber cover at the end. During operation, external current is transmitted through the conductive terminals on the motor cover, thereby driving the brushed motor to control the operation of mechanisms such as windows, wipers, door locks, fuel pump, and throttle. The aforementioned motor cover serves to support the conductive terminals for electrical connection and also acts as an insulating cover component. Figures 1 to 4As shown, the motor cover 10 is typically equipped with two types of conductive terminals, namely P-side terminal 11 and Q-side terminal 12. The two are arranged in a mirror symmetrical manner and are used to form the electrical path connection of the motor to meet the requirements of motor power supply and circuit conduction.

[0046] The installation of the P-side terminals and Q-side terminals on the motor cover involves two steps: pre-installation and clamping. In the pre-installation step, the pre-installation mechanism inserts the P-side terminal or Q-side terminal into the reserved installation position on the motor cover. In the clamping step, the clamping mechanism clamps the P-side terminal or Q-side terminal to ensure a secure installation.

[0047] Currently, the two types of caps supporting P-side and Q-side terminals are limited by structural symmetry and functional differentiation. The processing of these two caps typically requires two independent clamping structures to clamp the two different, symmetrical terminals separately. This necessitates separate material preparation and processing lines during production, resulting in cumbersome procedures, low production efficiency, increased equipment investment, mold management, and material control costs, hindering large-scale production and improving product versatility.

[0048] To address the aforementioned issues, this application provides a motor cover PQ side terminal clamping mechanism. By setting a switching component, a single clamping mechanism can complete the clamping process of both P-side terminal 11 and Q-side terminal 12 on the motor cover 10.

[0049] First, the overall application environment of the motor cover PQ side terminal pre-installation mechanism provided in this application embodiment will be described. For example... Figure 5 and Figure 6 As shown, the PQ side terminal assembly mechanism includes a feeding belt 01, a top-extension rotary exchange mechanism 02, and a turntable. The turntable has multiple stations, namely: a CCD vision inspection mechanism 03, a first terminal pre-assembly mechanism 04-1, a first clamping station 05-1, a second terminal pre-assembly mechanism 04-2, a second clamping mechanism 05-2, a height detection mechanism 06, and a defective material discharge station 07. The feeding belt 01 transports the motor caps 10 to be processed to the designated position. The top-extension rotary exchange mechanism 02 picks up the motor caps 10 and places them at the initial station of the turntable. The turntable then drives the motor caps 10 to sequentially flow to each station for processing and inspection. The specific workflow of each station is as follows:

[0050] The CCD vision inspection unit 03 identifies the appearance features and model markings of the motor cover 10, determines whether the current motor cover 10 is the preset processing model of this batch, filters out non-target model products, and avoids incorrect processing in subsequent processes.

[0051] The first terminal pre-installation mechanism 04-1 grabs the first terminal among the P-side terminal 11 or the Q-side terminal 12 and pre-inserts it into the corresponding mounting hole of the motor cover 10. The pre-insertion process retains a preset margin to ensure that the terminal is stable and does not fall off and is easy to tighten later.

[0052] The first clamping station 05-1 performs a second clamping on the pre-installed first terminal. By using pressure to coordinate positioning, it ensures that the terminal is installed in place and eliminates problems such as terminal floating or tilting.

[0053] The second terminal pre-installation mechanism 04-2 is structurally symmetrical to the first terminal pre-installation mechanism 04-1, and grasps and pre-inserts the second terminal in either the P-side terminal 11 or the Q-side terminal 12 according to the same principle.

[0054] The second clamping mechanism 05-2 clamps and fixes the second pre-inserted terminal, completing the entire process of pre-installation and clamping of the two terminals.

[0055] The height detection mechanism 06 adopts a contact displacement detection method, using the motor cover 10 reference surface as a reference, to measure the terminal installation height and determine whether the height deviation is within the allowable tolerance range.

[0056] Defective material discharge station 07 classifies and discharges unqualified products according to the test results, distinguishing them into three categories: CCD test failure, pressing abnormality, and height deviation. Qualified products are sent back to the feeding belt 01 by the top extension and rotation exchange mechanism 02 and enter the next processing step.

[0057] This application focuses on disclosing the high-precision testing agency 06.

[0058] The detailed plan is as follows:

[0059] This application provides a height detection mechanism for the PQ side terminals of a motor cover 10, used for detecting the height of the P-side terminals 11 and Q-side terminals 12 after assembly. The mechanism includes: a drive assembly 100, a pre-pressure assembly 200, a conduction assembly 300, and a displacement sensor 400.

[0060] The drive assembly 100 is connected to the preload assembly 200, and the drive assembly 100 is used to drive the preload assembly 200 close to the motor cover 10.

[0061] The transmission component 300 is slidably connected to the preload component 200, and the transmission component 300 is signal connected to the displacement sensor 400; the relative position of the preload component 200 and the displacement sensor 400 is fixed.

[0062] During the process of the drive assembly 100 driving the pre-pressure assembly 200 to approach the motor cover 10, the transmission assembly 300 first contacts and presses the top of the P-side terminal 11 or the Q-side terminal 12; the drive assembly 100 continues to drive the pre-pressure assembly 200 and the displacement sensor 400 to approach the motor cover 10 until the pre-pressure assembly 200 abuts against the motor cover 10; the displacement sensor 400 detects the displacement of the transmission assembly 300 relative to the pre-pressure assembly 200, and determines the height of the P-side terminal 11 or the Q-side terminal 12 on the motor cover 10 based on the displacement.

[0063] In this embodiment, the working principle of the above technical solution is explained in detail with the motor cover 10 lying flat and the P-side terminal 11 or Q-side terminal 12 facing vertically upwards. In actual applications, the relative position of the detection mechanism and the motor cover terminal can be adjusted to any direction according to the production line layout. The overall detection process is divided into four steps:

[0064] S1, such as Figure 7 and Figure 8 As shown, the drive assembly 100 starts and drives the pre-pressure assembly 200 to press down vertically towards the motor cover 10. Since the displacement sensor 400 and the pre-pressure assembly 200 are connected in a fixed relative position, and the conduction assembly 300 and the pre-pressure assembly 200 are slidably connected, when the drive assembly 100 drives the pre-pressure assembly 200 to press down, the displacement sensor 400 and the conduction assembly 300 move down synchronously with the pre-pressure assembly 200, and the three of them remain relatively stationary as they approach the motor cover 10.

[0065] S2, such as Figure 9 and Figure 10 As shown, during the process of the pre-pressing component 200, the transmission component 300 and the displacement sensor 400 pressing down together, because the detection end of the transmission component 300 is directly opposite to the P-side terminal 11 or Q-side terminal 12 on the motor cover 10, and the P-side terminal 11 or Q-side terminal 12 protrudes vertically upward on the surface of the motor cover 10, the transmission component 300 will first contact and press the top of the P-side terminal 11 or Q-side terminal 12. At this time, the terminal forms an upward supporting force on the transmission component 300, and the transmission component 300 is held down by the P-side terminal 11 or Q-side terminal 12 and stops moving downward.

[0066] S3, such as Figure 9 and Figure 10As shown, since the conduction component 300 and the preload component 200 are in a sliding connection, when the conduction component 300 is held stationary by the P-side terminal 11 or the Q-side terminal 12, the preload component 200 and the displacement sensor 400 can continue to move downward under the continuous driving force of the drive component 100. At this time, the preload component 200 slides relative to the conduction component 300, and the preload component 200 moves downward and away from the conduction component 300 in the vertical direction. During this sliding process, the relative position of the displacement sensor 400 and the preload component 200 remains fixed. Therefore, while the preload component 200 moves away from the conduction component 300, the displacement sensor 400 also moves relative to the conduction component 300. The displacement sensor 400 records the relative displacement in real time during this process.

[0067] S4, such as Figure 11 and Figure 12 As shown, when the lower end face of the pre-compression component 200 abuts against the upper end face of the motor cover 10, the motor cover 10 provides rigid support to the pre-compression component 200, and the drive component 100 stops outputting driving force and terminates its movement. At this time, the pre-compression component 200 stably abuts against the upper surface of the motor cover 10, and the conduction component 300 stably abuts against the top surface of the P-side terminal 11 or the Q-side terminal 12. The vertical distance between the upper surface of the motor cover 10 and the top surface of the terminal is the actual installation height of the P-side terminal 11 or the Q-side terminal 12. This installation height is equal to the relative displacement of the pre-compression component 200 relative to the conduction component 300. This relative displacement has been completely recorded by the displacement sensor 400. The displacement sensor 400 can directly output the height detection result of the P-side terminal 11 or the Q-side terminal 12 on the motor cover 10 based on the recorded relative displacement.

[0068] Therefore, the technical solution of this application, through the ingenious cooperation between the drive component 100 and the transmission component 300, and with the help of the displacement sensor 400, a conventional testing device, can accurately measure the installation height of the P-side terminal 11 or Q-side terminal 12 of the motor cover 10, realizing rapid detection of whether the terminal installation is qualified. It has multiple beneficial effects: 1. The drive component 100, displacement sensor 400, etc. used in the detection mechanism are all conventional industrial components, the overall structure of the equipment is simple, and the cost of equipment research and development and procurement is greatly reduced; 2. The components of the mechanism are compactly coordinated and highly integrated, and can be integrated as an independent detection unit in the production line of the motor cover PQ side terminal assembly equipment, without occupying separate production line space, and can efficiently realize the terminal height detection function within the limited production line layout space; 3. The entire detection process can be completed by only one pressing action of the drive component 100, without the need for multiple adjustments or detection operations, resulting in high detection efficiency, and the rigid cooperation of the mechanical structure ensures the speed and accuracy of the detection results.

[0069] It should be noted that the specific structures of the drive component 100, the pre-pressure component 200, the conduction component 300 and the displacement sensor 400, as well as the implementation of the relative connection relationship between each component, are not limited in the embodiments of this application. For ease of understanding, preferred embodiments are provided as follows.

[0070] First, the sliding connection between the conduction component 300 and the preload component 200 can be achieved in various ways, with the preferred method being... Figures 7 to 12 As shown, the conductive component 300 and the preload component 200 are slidably connected as follows:

[0071] The pre-compression component 200 is provided with a first slide rail 210, and the transmission component 300 is provided on the first slide rail 210;

[0072] When the conductive assembly 300 contacts the top of the P-side terminal 11 or the Q-side terminal 12, the conductive assembly 300 remains stationary, and the first slide rail 210 slides relative to the conductive assembly 300 so that the pre-pressure assembly 200 continues to approach the motor cover 10 under the drive of the drive assembly 100.

[0073] In this embodiment, in the aforementioned step S3, the transmission component 300 is held stationary by the P-side terminal 11 or the Q-side terminal 12, while the first slide rail 210 and the pre-pressure component 200 are a fixedly connected integrated structure. The transmission component 300 and the first slide rail 210 are in sliding engagement. Therefore, when the drive component 100 continues to drive the pre-pressure component 200 to press down, the first slide rail 210 fixed to the pre-pressure component 200 will slide relative to the transmission component 300 along the sliding direction of the transmission component 300, thereby driving the pre-pressure component 200 and the displacement sensor 400 fixed to the pre-pressure component 200 to continue to press down until the pre-pressure component 200 abuts against the motor cover 10. This sliding engagement method realizes the relative movement of the transmission component 300 and the pre-pressure component 200 through a simple slide rail structure, ensuring the smooth progress of the detection process.

[0074] Therefore, the sliding connection between the transmission component 300 and the pre-compression component 200 via the first slide rail 210 has significant advantages: Firstly, the slide rail is a standardized mechanical fit structure with low sliding resistance, ensuring smooth sliding of the pre-compression component 200 relative to the transmission component 300, avoiding detection errors caused by jamming, and improving the stability of the detection process; secondly, the slide rail is easy to install and debug, and the stroke and fit accuracy of the slide rail can be adjusted according to actual detection needs, adapting to different specifications of motor covers 10 and terminal detection scenarios; at the same time, the slide rail structure has a long service life and low maintenance costs, and can adapt to the continuous operation needs of industrial production lines.

[0075] The preferred embodiment of the pre-compression component 200 is described below.

[0076] It is important to emphasize that the pre-pressure component 200, as the core actuator of the testing mechanism, mainly needs to possess two core functions: 1. It must be able to avoid the P-side terminal 11 or Q-side terminal 12, ensuring that after the transmission component 300 smoothly abuts against the top of the P-side terminal 11 or Q-side terminal 12, the pre-pressure component 200 can continue to slide relative to the transmission component 300 without being obstructed by the terminal; 2. When the drive component 100 drives the pre-pressure component 200 to move to the plane where the motor cover 10 is located, the pre-pressure component 200 can achieve stable surface contact with the motor cover 10, providing a clear trigger point for the drive component 100 to stop moving, ensuring that the reference plane is consistent for each test. Based on these two functional requirements, the contact element of the pre-pressure component 200 with the motor cover 10 can be set to different structures such as needle-shaped, block-shaped, or plate-shaped according to the testing requirements. This application embodiment is not limited in this regard. For ease of understanding, a preferred embodiment is provided as follows.

[0077] like Figures 7 to 12 As shown, the pre-compression assembly 200 includes a pre-compression plate 220 and a mounting plate 230, wherein,

[0078] There are two mounting plates 230, which are respectively located at both ends of the pre-pressing plate 220. One end of each mounting plate 230 is connected to the pre-pressing plate 220, and the other end is connected to the drive assembly 100. The first slide rail 210 is located on the mounting plate 230.

[0079] The preload plate 220 has a clearance hole 221, which is used to avoid the P-side terminal 11 or the Q-side terminal 12, so that the conductive assembly 300 can contact and press the top of the P-side terminal 11 or the Q-side terminal 12 through the clearance hole 221.

[0080] In this embodiment, two mounting plates 230 are respectively vertically fixed at both ends of the pre-pressure plate 220, forming a "door" shaped overall structure. The first slide rail 210 is vertically disposed on the inner side wall of the mounting plate 230. The two ends of the transmission component 300 are slidably engaged with the first slide rail 210 on the two mounting plates 230. Thus, the two mounting plates 230 together limit the sliding space and sliding direction of the transmission component 300 relative to the pre-pressure component 200 through the first slide rail 210. This ensures that after the transmission component 300 abuts against the top surface of the P-side terminal 11 or the Q-side terminal 12, it can only slide vertically relative to the pre-pressure component 200 along the extension direction of the first slide rail 210, avoiding detection errors caused by horizontal displacement of the transmission component 300.

[0081] Furthermore, the contact element in the pre-pressure assembly 200 that abuts against the motor cover 10 is a plate-shaped pre-pressure plate 220. The plate-shaped structure can form a large-area surface contact with the upper surface of the motor cover 10, ensuring stability during contact and preventing the pre-pressure assembly 200 from tilting due to point contact or line contact, thereby improving the overall stability of the detection system. At the same time, the pre-pressure plate 220 has a clearance hole 221 at the position corresponding to the P-side terminal 11 or the Q-side terminal 12. The diameter of the clearance hole 221 is larger than the outer diameter of the terminal, achieving complete clearance of the P-side terminal 11 or the Q-side terminal 12. This ensures that the conductive assembly 300 can pass through the clearance hole 221 and contact the top of the terminal, and that the pre-pressure plate 220 can clear the P-side terminal 11 or the Q-side terminal 12. Thus, after the conductive assembly 300 abuts against the P-side terminal 11 or the Q-side terminal 12, the pre-pressure assembly 200 can continue to slide downward in the vertical direction without being blocked by the terminal.

[0082] Therefore, the pre-compression assembly 200 structure of this embodiment has significant advantages: First, both the pre-compression plate 220 and the mounting plate 230 are sheet metal or machined parts, with simple structure, low processing and manufacturing costs, and the connection between each part is fixed by bolts, making disassembly and maintenance convenient; Second, the first slide rail 210 on the two mounting plates 230 cooperates with the transmission assembly 300 to realize bidirectional limiting sliding of the transmission assembly 300, with stable sliding without deviation, ensuring detection accuracy while improving detection efficiency; Third, the large-area contact method of the plate-shaped pre-compression plate 220 combined with the avoidance design of the avoidance hole 221 ensures the consistency of the detection reference surface and realizes unobstructed contact between the transmission assembly 300 and the terminal, meeting the dual core functional requirements of the pre-compression assembly 200.

[0083] The preferred embodiment of the displacement sensor 400 will be described below.

[0084] The displacement sensor 400 can detect the relative displacement of the conductive component 300 in various ways, such as infrared ranging, ultrasonic ranging, or contact detection of physical components. This application does not limit the detection method. For ease of understanding, preferred embodiments are provided as follows.

[0085] The signal connection between the transmission component 300 and the displacement sensor 400 is as follows:

[0086] A first connecting rod 410 is provided between the transmission component 300 and the displacement sensor 400. The first connecting rod 410 is fixedly connected to the transmission component 300 and slidably connected to the displacement sensor 400.

[0087] The displacement sensor 400 determines the displacement of the transmission assembly 300 relative to the preload assembly 200 by detecting the relative displacement of the first link 410.

[0088] In this embodiment, as Figures 7 to 12 As shown, the first connecting rod 410 is arranged vertically, with its lower end fixedly connected to the upper end face of the transmission component 300, and its upper end coaxially inserted into the detection end of the displacement sensor 400, forming a sliding fit with the displacement sensor 400. Therefore, in step S3 above, when the relative position of the transmission component 300 and the displacement sensor 400 changes, the first connecting rod 410, fixed to the transmission component 300, will synchronously slide relative to the displacement sensor 400. The displacement sensor 400 can detect the sliding displacement of the first connecting rod 410 in real time through its detection end. Since the first connecting rod 410 is fixedly connected to the transmission component 300, this sliding displacement is equal to the displacement of the transmission component 300 relative to the pre-compression component 200. Therefore, the displacement sensor 400 can directly determine the displacement of the transmission component 300 relative to the pre-compression component 200 by detecting the relative displacement of the first connecting rod 410.

[0089] As a result, this signal connection and detection method has outstanding advantages: the mechanical connection and displacement transmission between the transmission component 300 and the displacement sensor 400 are achieved through the physical first link 410. Compared with non-contact ranging methods such as infrared and ultrasonic, it is not affected by environmental factors such as dust and light in industrial production lines, and the detection results are more accurate. At the same time, the first link 410 is a conventional shaft part with a simple structure and low cost. The sliding fit with the displacement sensor 400 does not require complex circuit debugging. The accurate detection of displacement can be achieved simply through the clever connection relationship of the mechanical structure, which takes into account both the high efficiency and low cost of detection.

[0090] It should be noted that, since the core movement of the entire height detection mechanism is the vertical downward pressing movement of the pre-compression component 200, each component can theoretically reach its proper position at each movement node under the action of gravity. However, factors such as equipment vibration and part fitting clearance exist in industrial production lines, which can easily cause unnecessary small movements of the components, affecting the detection accuracy of the displacement sensor 400. In order to further ensure the measurement accuracy, this application further provides the following solution.

[0091] like Figures 7 to 12 As shown, a first spring 420 is sleeved on the first connecting rod 410. One end of the first spring 420 is fixedly connected to the first connecting rod 410 or the transmission assembly 300, and the other end of the first spring 420 is connected to the displacement sensor 400.

[0092] In this embodiment, the first spring 420 is coaxially sleeved on the first connecting rod 410. Simultaneously, the lower end of the first spring 420 is fixedly connected to the upper end face of the transmission assembly 300, and the upper end of the first spring 420 is fixedly connected to the lower end face of the displacement sensor 400. Initially, the first spring 420 is in a slightly compressed state, thus continuously generating downward tension between the transmission assembly 300 and the displacement sensor 400. When the transmission assembly 300 contacts and presses the top surface of the P-side terminal 11 or the Q-side terminal 12, the tension of the first spring 420 continues to act on the transmission assembly 300, ensuring that the transmission assembly 300 always tightly abuts against the top surface of the P-side terminal 11 or the Q-side terminal 12. This prevents the transmission assembly 300 from experiencing slight upward displacement due to relative sliding with the pre-compression assembly 200, equipment vibration, or other factors, and avoids deviations in the detection value of the displacement sensor 400 caused by gaps between the transmission assembly 300 and the terminal top.

[0093] Therefore, by setting the first spring 420 on the first connecting rod 410, unnecessary movement of various components during the testing process can be effectively avoided, significantly improving the testing accuracy: Firstly, the continuous tension of the first spring 420 provides a downward preload to the transmission component 300, ensuring that the transmission component 300 is always in contact with the terminal top, eliminating the testing error caused by the gap between the parts; Secondly, the elastic buffering effect of the spring can absorb the equipment vibration in the production line, avoiding the slight shaking of the transmission component 300 caused by vibration, and improving the stability of the testing process; Thirdly, the installation method of the first spring 420 is simple, and springs with different elastic coefficients can be replaced according to the testing requirements to adapt to the testing requirements of different specifications of terminals, which is highly flexible.

[0094] The preferred embodiment of the conductive component 300 will be described below.

[0095] It should be emphasized that the conductive component 300, as a detection component that directly contacts the terminal, can be designed in various ways according to factors such as the specifications and spacing of the terminal. The specific structure of the conductive component 300 is not limited in the embodiments of this application. For ease of understanding, preferred embodiments are provided as follows.

[0096] like Figures 7 to 12 As shown, the conductive assembly 300 includes a conductive plate 310, a conductive block 320, a second connecting rod 330, and a second spring 340, wherein...

[0097] The conductive plate 310 is T-shaped. The T-shaped conductive plate 310 includes a vertical arm 312 and a horizontal arm 311 that are perpendicular to each other. The horizontal arm 311 is connected to the conductive block 320. One side of the vertical arm 312 is connected to the first connecting rod 410. The other side of the vertical arm 312 is used to contact and press the top of the P-side terminal 11 or the Q-side terminal 12.

[0098] The conductive block 320 is slidably connected to the preload assembly 200, and the second connecting rod 330 is parallel to the sliding direction of the conductive block 320 relative to the preload assembly 200. The conductive block 320 and the second spring 340 are sequentially sleeved on the second connecting rod 330.

[0099] In this embodiment, the longitudinal arm 312 of the T-shaped conductive plate 310 is a slender rod-like structure, with its lower end serving as a detection end for contacting the top of the P-side terminal 11 or the Q-side terminal 12. This allows for precise pressure against the delicate terminal structure, avoiding interference between adjacent terminals caused by an excessively wide detection end of the conductive plate 310. The transverse arm 311 of the T-shaped conductive plate 310 is a plate-like structure, with both ends fixedly connected to the conductive blocks 320 on both sides. This ensures a stable connection between the conductive plate 310 and the conductive blocks 320, balancing the precision of terminal contact with the overall stability of the conductive assembly 300's sliding motion. Preferably, the longitudinal arm 312 and the transverse arm 311 of the T-shaped conductive plate 310 are integrally formed.

[0100] Furthermore, the transmission block 320 is slidably engaged with the first slide rail 210 on the pre-compression assembly 200, and the second connecting rod 330 is arranged in a vertical direction parallel to the extension direction of the first slide rail 210. The transmission block 320 and the second spring 340 are coaxially sleeved on the second connecting rod 330 in sequence. One end of the second spring 340 is fixedly connected to the transmission block 320, and the other end is fixedly connected to the pre-compression assembly 200. In the initial state, the second spring 340 is in a slightly compressed state. The working principle of this structure is consistent with the cooperation principle of the first connecting rod 410 and the first spring 420. The second spring 340 continuously generates downward tension between the transmission block 320 and the pre-compression component 200. When the longitudinal arm 312 of the transmission plate 310 contacts the top of the terminal, the tension of the second spring 340 is transmitted to the transmission plate 310 through the transmission block 320, ensuring that the transmission plate 310 always tightly abuts the top of the terminal. At the same time, it limits the excessive swaying of the transmission block 320 on the first slide rail 210, further avoiding unnecessary movement of the transmission component 300 and improving detection accuracy.

[0101] The preferred embodiment of the drive component 100 will be described below.

[0102] It should be noted that, since the motor cover 10 is a standardized machined part, the flatness of the upper end face of the standard motor cover 10 parts after testing is consistent. The stroke of the pre-pressure component 200 from the initial position to the upper end face of the motor cover 10 is a fixed value. Therefore, the drive component 100 only needs to ensure that the pre-pressure component 200 moves by a fixed amplitude each time to achieve the uniformity of the testing benchmark. The specific implementation method of the drive component 100 is not limited in this application embodiment. Preferred embodiments are provided as follows.

[0103] like Figures 7 to 12As shown, the height detection mechanism for the side terminal of the motor cover 10PQ also includes a mounting bracket 500, a drive assembly 100 is mounted on the mounting bracket 500, a second slide rail 510 is provided on the mounting bracket 500, and a pre-pressing assembly 200 is slidably connected to the mounting bracket 500 through the second slide rail 510.

[0104] The drive assembly 100 includes a cylinder 110, the output shaft of which is connected to the preload assembly 200;

[0105] A magnetic component is provided at a preset position on the output shaft of cylinder 110, and a magnetic sensor is provided on the mounting bracket 500. When cylinder 110 drives the preload component 200 to abut against the motor cover 10, the relative distance between the magnetic component and the magnetic sensor is less than a preset value.

[0106] In this embodiment, the mounting bracket 500 is the overall support structure of the detection mechanism. The cylinder 110 is vertically fixed at the top of the mounting bracket 500. The second slide rail 510 is vertically disposed on the inner side wall of the mounting bracket 500. The pre-pressure component 200 is slidably engaged with the second slide rail 510. The output shaft of the cylinder 110 is vertically downward and fixedly connected to the pre-pressure component 200. After the cylinder 110 is started, the extension and retraction of the output shaft drives the pre-pressure component 200 to reciprocate vertically along the second slide rail 510. A magnetic component is fixed on the output shaft of cylinder 110 at the position where the pre-pressure component 200 abuts against the motor cover 10. A magnetic sensor is installed on the mounting bracket 500 at the position corresponding to the magnetic component. The magnetic sensor is electrically connected to the control system of the equipment. When cylinder 110 drives the pre-pressure component 200 to press down along the second slide rail 510 to abut against the motor cover 10, the magnetic component on the output shaft is pressed down until the relative distance between it and the magnetic sensor is less than a preset value. The magnetic sensor detects the magnetic field signal of the magnetic component and transmits the signal to the control system. After receiving the signal, the control system controls cylinder 110 to stop outputting driving force, completing one pressing detection action.

[0107] As a result, the design of the drive assembly 100 has significant advantages: through the cooperation of magnetic components and magnetic sensors, precise control of the stroke of the cylinder 110 is achieved, enabling the low-cost cylinder 110 to achieve stroke control accuracy similar to that of a servo motor, eliminating the need for a more expensive servo motor as the drive source, thus greatly reducing the cost of the drive assembly 100. At the same time, the cylinder 110 has a fast response speed and stable output force, which can meet the continuous operation requirements of industrial production lines. In addition, the second slide rail 510 provides guidance and limit for the movement of the preload assembly 200, ensuring that the preload assembly 200 always moves in the vertical direction, avoiding detection reference deviation caused by horizontal offset of the preload assembly 200, and further improving detection accuracy.

[0108] Optionally, in this embodiment, the installation method in which the relative positions of the pre-compression component 200 and the displacement sensor 400 are fixed is as follows: the pre-compression component 200 and the displacement sensor 400 are both fixedly connected to a common slider. The slider is slidably engaged with the second slide rail 510 on the mounting bracket 500. The output shaft of the cylinder 110 of the drive component 100 is fixedly connected to the slider. When the output shaft of the cylinder 110 extends or retracts, it drives the slider to slide along the second slide rail 510, thereby causing the pre-compression component 200 and the displacement sensor 400 to slide synchronously. This achieves synchronous movement with a fixed relative position between the pre-compression component 200 and the displacement sensor 400, ensuring the consistency of their movements.

[0109] It should be noted that, in the specific working process, since there are two P-side terminals 11 or Q-side terminals 12 installed on the motor cover 10, and the two terminals are symmetrically distributed, in order to accurately detect whether the installation height of a pair of terminals meets the standard, this application adopts the following solution.

[0110] like Figures 7 to 12 As shown, the preload assembly 200 is in one set, and the transmission assembly 300 and displacement sensor 400 are in two sets each.

[0111] Two sets of conductive components 300 and two sets of displacement sensors 400 are respectively located at both ends of the preload component 200, with each set of conductive components 300 corresponding to one set of displacement sensors 400.

[0112] The two sets of conductive components 300 are respectively aligned with the two P-side terminals 11 or the two Q-side terminals 12 installed on the motor cover 10.

[0113] In this embodiment, two sets of conductive components 300 are symmetrically arranged at both ends of the pre-compression component 200. Each set of conductive components 300 is connected to the corresponding displacement sensor 400 through an independent first connecting rod 410, and the detection ends of the two sets of conductive components 300 are respectively directly opposite the two symmetrically distributed P-side terminals 11 or Q-side terminals 12 on the motor cover 10. Combining the aforementioned structural scheme of the conductive component 300, the conductive plate 310 in the conductive component 300 is T-shaped, and its longitudinal arm 312 is a slender rod structure with a small detection end. Even if the distance between the two terminals on the left and right sides of the motor cover 10 is small, the longitudinal arms 312 of the two conductive plates 310 can accurately abut the top of the corresponding terminals respectively without mutual interference, thereby achieving independent and accurate detection of the two terminals.

[0114] Therefore, the beneficial effects of this solution are as follows: by setting up two sets of one-to-one corresponding conductive components 300 and displacement sensors 400, the height detection of the two P-side terminals 11 or Q-side terminals 12 on the motor cover 10 can be completed simultaneously in one pressing detection action, eliminating the need for two separate detections and greatly improving detection efficiency; at the same time, each set of conductive components 300 and displacement sensors 400 is an independent detection unit, which can output the height detection results of the two terminals separately, accurately determining whether the installation of a single terminal is qualified, avoiding misjudgment of the entire motor cover 10 due to the unqualified installation of one terminal, and improving the accuracy and reliability of the detection.

[0115] The above provides a detailed description of the motor cover PQ side terminal height detection mechanism provided in the embodiments of this application. Based on the above hardware detection mechanism, this application further provides a method for detecting the height of the motor cover PQ side terminal, such as... Figure 13 As shown, the method includes the following steps:

[0116] S100, The preload assembly is driven to approach the motor cover via the drive assembly;

[0117] S200, the transmission component and the pre-compression component are slidably connected. When the transmission component contacts the top of the P-side terminal or Q-side terminal, the pre-compression component continues to be driven to approach the motor cover through the drive component.

[0118] S300, The displacement of the transmission component relative to the preload component is detected by a displacement sensor;

[0119] S400. Determine the installation height of the P-side terminal or Q-side terminal installed on the motor cover based on the displacement.

[0120] In this embodiment, the detection method is based on the aforementioned motor cover PQ side terminal height detection mechanism. Its working principle is as follows: First, the drive component provides driving force, causing the pre-pressure component to move closer to the motor cover. The transmission component, moving synchronously with the pre-pressure component, first contacts the top of the terminal and is held stationary. Then, the drive component continues to drive the pre-pressure component closer to the motor cover, causing the pre-pressure component to slide relative to the transmission component. A displacement sensor detects the relative displacement in real time during this process. Finally, based on the displacement of the pre-pressure component relative to the transmission component, the actual installation height of the terminal is determined, and this displacement is equal to the terminal's installation height. The beneficial effects of this detection method are consistent with those of the aforementioned detection mechanism. The operation steps are simple, requiring only one drive action from the drive component to complete the detection. It has high detection efficiency, and the rigid fit of the mechanical structure ensures the accuracy of the detection results. Furthermore, this method can be integrated into an automated production line for assembling motor cover PQ side terminals, automating the detection process without manual intervention, reducing labor costs, and improving the overall automation level of the production line.

[0121] Preferably, the detection method further includes the following steps.

[0122] Before the preload assembly is driven by the drive assembly to approach the motor cover, it also includes:

[0123] S001. The standard height of the P-side terminal or Q-side terminal on the motor cover is used as the zero value.

[0124] Based on the displacement, determine the mounting height of the P-side terminal or Q-side terminal installed on the motor cover. Then, the following steps are also included:

[0125] S500: Obtain the absolute value of the difference between the displacement and the zero position value as the measured value;

[0126] S600. When the measured value is greater than or equal to the preset value, it is determined that the installation of the P-side terminal or Q-side terminal on the motor cover is unqualified.

[0127] In this embodiment, before actual testing, a standard part of the motor cover is used for calibration. The displacement sensor detection value corresponding to the standard installation height of the P-side terminal or Q-side terminal on the standard part is set as the zero value. This zero value is stored in the control system of the equipment as the reference value for subsequent testing. After completing the actual terminal height detection and obtaining the displacement detected by the displacement sensor, the control system automatically calculates the absolute value of the difference between the displacement and the zero value. This absolute value is used as the measurement value to determine whether the terminal installation is qualified. If the measurement value is less than the preset value, it means that the deviation between the actual installation height of the terminal and the standard height is within the allowable range, and the terminal installation is determined to be qualified. If the measurement value is greater than or equal to the preset value, it means that the deviation between the actual installation height of the terminal and the standard height exceeds the allowable range, and the terminal installation is determined to be unqualified.

[0128] The technical advantages of this preferred solution are significant: simply measuring the height of the terminal cannot directly determine whether its installation is qualified. By pre-calibrating the zero-point value and comparing the actual measured displacement with the zero-point value after the test, the qualification of the terminal installation can be determined immediately upon completion of the test. The test and judgment are completed in one integrated process, eliminating the need for subsequent manual comparison and judgment, thus improving the test efficiency. At the same time, the test results of non-conforming products can be transmitted to the production line control system in real time. The control system can immediately control the subsequent defective product discharge station to remove the non-conforming motor covers, achieving timely removal of non-conforming products and preventing them from flowing into subsequent processes, thereby improving the product yield of the production line.

[0129] In summary, the motor cover PQ side terminal height detection mechanism provided in this application embodiment is used to detect the assembled P and Q side terminals, including a drive, pre-pressure, and transmission component and a displacement sensor. The drive component connects to and drives the pre-pressure component close to the motor cover. The transmission component is slidably connected to the pre-pressure component and signal-connected to the displacement sensor, and the relative positions of the pre-pressure component and the displacement sensor are fixed. During detection, the transmission component first presses down on the top of the terminal, and the drive component continues to drive until the pre-pressure component abuts against the cover. The displacement sensor detects the displacement of the transmission component relative to the pre-pressure component to determine the terminal height. This mechanism achieves accurate detection through component cooperation, with significant advantages: it uses conventional components, has a simple structure and low cost; the components are compact and highly integrated, saving production line space; and the detection can be completed in one press, resulting in high efficiency and accurate results.

[0130] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A height detection mechanism for the PQ side terminals of a motor cover, used for detecting the height of the P-side terminals and Q-side terminals of a motor cover after assembly, characterized in that, include: The components include a drive assembly, a preload assembly, a transmission assembly, and a displacement sensor. The drive assembly is connected to the pre-compression assembly, and the drive assembly is used to drive the pre-compression assembly closer to the motor cover; The conductive component is slidably connected to the preload component, and the conductive component is signal-connected to the displacement sensor; the relative positions of the preload component and the displacement sensor are fixed. During the process of the drive assembly driving the pre-pressure assembly closer to the motor cover, the conduction assembly first contacts and presses the top of the P-side terminal or Q-side terminal; the drive assembly continues to drive the pre-pressure assembly and the displacement sensor closer to the motor cover until the pre-pressure assembly abuts against the motor cover; the displacement sensor detects the displacement of the conduction assembly relative to the pre-pressure assembly, and determines the height of the P-side terminal or Q-side terminal on the motor cover based on the displacement.

2. The height detection mechanism for the PQ side terminal of the motor cover according to claim 1, characterized in that, The conductive component and the pre-compression component are slidably connected as follows: The pre-compression component is provided with a first slide rail, and the transmission component is disposed on the first slide rail; When the conductive component contacts the top of the P-side terminal or Q-side terminal, the conductive component remains stationary, and the first slide rail slides relative to the conductive component so that the pre-pressure component continues to approach the motor cover under the drive of the drive component.

3. The height detection mechanism for the PQ side terminal of the motor cover according to claim 2, characterized in that, The pre-compression assembly includes a pre-compression plate and a mounting plate, wherein... The number of mounting plates is two, and the two mounting plates are respectively disposed at both ends of the pre-pressing plate. One end of the two mounting plates is connected to the pre-pressing plate, and the other end is connected to the drive assembly; the first slide rail is disposed on the mounting plate. The preload plate has clearance holes for avoiding the P-side terminal or the Q-side terminal, so that the conductive assembly can contact and press the top of the P-side terminal or the Q-side terminal through the clearance holes.

4. The height detection mechanism for the PQ side terminal of the motor cover according to claim 1, characterized in that, The conductive component is connected to the displacement sensor signal in the following manner: A first connecting rod is provided between the transmission component and the displacement sensor. The first connecting rod is fixedly connected to the transmission component and slidably connected to the displacement sensor. The displacement sensor determines the displacement of the transmission component relative to the preload component by detecting the relative displacement of the first connecting rod.

5. The height detection mechanism for the PQ side terminal of the motor cover according to claim 4, characterized in that, A first spring is fitted on the first connecting rod. One end of the first spring is fixedly connected to the first connecting rod or the transmission assembly, and the other end of the first spring is connected to the displacement sensor.

6. The height detection mechanism for the PQ side terminal of the motor cover according to claim 4, characterized in that, The conductive assembly includes a conductive plate, a conductive block, a second connecting rod, and a second spring, wherein... The conductive plate is T-shaped, and the T-shaped conductive plate includes a vertical arm and a horizontal arm that are perpendicular to each other. The horizontal arm is connected to the conductive block. One side of the vertical arm is connected to the first connecting rod, and the other side of the vertical arm is used to contact and press the top of the P-side terminal or the Q-side terminal. The conductive block is slidably connected to the pre-compression component, the second connecting rod is parallel to the sliding direction of the conductive block relative to the pre-compression component, and the conductive block and the second spring are sequentially sleeved on the second connecting rod.

7. The height detection mechanism for the PQ side terminal of the motor cover according to claim 1, characterized in that, It also includes a mounting bracket, the drive assembly is disposed on the mounting bracket, the mounting bracket is provided with a second slide rail, and the preload assembly is slidably connected to the mounting bracket through the second slide rail; The drive assembly includes a cylinder, and the output shaft of the cylinder is connected to the preload assembly. A magnetic component is provided at a preset position on the cylinder output shaft, and a magnetic sensor is provided on the mounting bracket. When the cylinder drives the pre-pressure component to abut against the motor cover, the relative distance between the magnetic component and the magnetic sensor is less than a preset value.

8. The height detection mechanism for the PQ side terminal of the motor cover according to claim 1, characterized in that, The pre-compression assembly is in one set, and the conductive assembly and the displacement sensor are each in two sets. The two sets of the transmission components and the two sets of the displacement sensors are respectively located at both ends of the pre-compression component, and the two sets of the transmission components and the two sets of the displacement sensors correspond one-to-one; The two sets of conductive components are respectively aligned with the two P-side terminals or the two Q-side terminals installed on the motor cover.

9. A method for detecting the height of the PQ-side terminal of a motor cover, used in the motor cover PQ-side terminal height detection mechanism as described in any one of claims 1 to 8, characterized in that, include: The pre-compression component is driven to approach the motor cover by the drive component; The conductive component is slidably connected to the pre-compression component. When the conductive component contacts the top of the pressure P-side terminal or Q-side terminal: The drive component continues to drive the pre-pressure component closer to the motor cover; The displacement of the conductive component relative to the preload component is detected by a displacement sensor; The installation height of the P-side terminal or Q-side terminal installed on the motor cover is determined based on the displacement.

10. The method for detecting the height of the PQ side terminal of the motor cover according to claim 9, characterized in that, Before the pre-pressure component is driven close to the motor cover by the drive component, the method further includes: The standard height at which the P-side terminal or Q-side terminal on the motor cover is installed is taken as the zero value. After determining the installation height of the P-side terminal or Q-side terminal installed on the motor cover based on the displacement, the method further includes: The absolute value of the difference between the displacement and the zero position value is obtained as the measurement value; When the measured value is greater than or equal to the preset value, it is determined that the installation of the P-side terminal or Q-side terminal on the motor cover is unqualified.

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