Motor lead terminal welding detection mechanism

Abstract

The utility model relates to the field of MGU actuators, and discloses a motor lead terminal welding detection mechanism which comprises a shell (1), a rotor and a stator are installed in the shell (1), a transmission shaft (2) extends out of one end of the shell (1), the shell (1) is of a cylindrical structure, a sealing cover (3) is arranged at the upper end of the shell (1), a connecting pin piece (4) is led out of the sealing cover (3), and a wiring terminal (5) is welded and fixed to the connecting pin piece (4). The wiring terminal (5) is of a sheet-shaped structure, the lower end of the wiring terminal (5) is bent to form a slot (6), the wiring terminal (5) on the upper side of the slot (6) is stamped to form a convex limiting point, a clamping opening (8) is formed in the upper side of the convex limiting point, and the clamping opening (8) is formed by a V-shaped sheet; and the wiring terminal (5) at the lower side of the clamping opening (8) forms a socket (9). The detection mechanism has the advantages of reliable detection, automation and the like.

Description

Technical Field

[0001] This invention relates to the field of parking brakes, and more particularly to an inspection mechanism for the welding of MGU actuator motors and motor wire terminals. Background Technology

[0002] CN218633513U discloses a connecting pin piece for a motor and a stator assembly and motor using the same, providing a structural style for a motor terminal block. However, this does not meet the requirements of MGU actuator motors. Existing MGU motor terminal blocks generally use direct soldering of wires for wiring. This approach has two main problems: unstable wiring and difficulty in managing the wires, making automation of the soldering process challenging. Furthermore, the strength of the soldered wires cannot be tested, hindering automated inspection and making it difficult to guarantee quality. Summary of the Invention

[0003] This invention addresses the shortcomings of existing technologies by providing a welding inspection mechanism for motor wire terminals.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0005] A motor wire terminal welding inspection mechanism is used for MGU actuator motors. The motor includes a housing, a rotor and a stator installed inside the housing, and a drive shaft extending from one end of the housing. The housing has a cylindrical structure, and the upper end of the housing is a cover. Connecting pins are led out from the cover, and terminals are welded and fixed on the connecting pins. The terminals have a sheet-like structure, and the lower end of the terminals is bent to form a slot. The upper side of the slot has a punched protrusion limiting point, and the upper side of the protrusion limiting point has a clamp formed by a V-shaped piece. The lower side of the clamp has a socket formed by the terminals. The clamp is perpendicular to the main body of the terminals, and the slot is a limiting structure that forms a gap between the main body of the terminals.

[0006] The testing mechanism includes a bottom clamping mechanism, a side clamping mechanism, and a top clamping mechanism. The bottom clamping mechanism is set to support the bottom of the MGU motor, the side clamping mechanism clamps the side of the motor, and the top clamping mechanism sets the axial direction of the motor and limits the connection of the wiring terminals.

[0007] Preferably, the top clamping mechanism includes a fixing plate and a positioning mechanism for connecting terminals; the fixing plate has an exposed hole in the middle, and the connecting pin extends out of the exposed hole and is pressed onto the upper end face of the motor; fixing screws are provided at the four corners of the fixing plate, and the fixing screws are fixedly connected to the top of the side clamping mechanism; the terminals extend out of the exposed hole.

[0008] Preferably, the positioning mechanism includes a top connecting seat with a connecting rod extending from it. The positioning mechanism also includes a locking rod with a limit post at its lower end. The limit post is inserted into the socket and a tension sensor is provided on the limit post.

[0009] Preferably, the connecting rod is a cylindrical rod with a slot on the side near the terminal block. The locking rod is shaped to match the slot and is installed inside the slot. The lower end of the connecting rod has a mounting hole, and a limiting post passes through the insertion hole and is installed inside the mounting hole. The limiting post is perpendicular to the locking rod and the connecting rod. The connecting rod and the locking rod have fixing holes, and the two are connected by bolts installed in the fixing holes.

[0010] Preferably, the side clamping mechanism includes a slide rail, a fixed block is provided on the upper end face of the slide rail, and a side positioning block is installed on the track of the slide rail. The side positioning block is connected to the fixed block by adjusting bolts. There are two sets of fixed blocks and positioning blocks respectively provided on the left and right sides of the motor. The positioning block is provided with a clamping groove, which clamps the outside of the motor. There is a distance between the two clamping grooves when they are clamped. The upper end face of the positioning block is located below the upper end face of the motor.

[0011] Preferably, the positioning block includes a sliding part mounted on the slide rail and a limiting part for limiting the motor, the limiting part and the sliding part being separate structures; it includes a transverse slide structure and a longitudinal slide structure, the transverse slide structure and the longitudinal slide structure being perpendicular to each other, and also includes a mounting base, the mounting base being mounted on the longitudinal slide structure, the longitudinal slide structure being mounted on the transverse slide structure; it also includes a base, the transverse slide structure being mounted on the base.

[0012] Preferably, the system also includes a frame and a crossbeam. The base is mounted on the crossbeam. The frame includes transmission chambers on both sides, in which a lead screw structure is installed. The lead screw is connected to a drive motor. The crossbeam cooperates with the lead screw, and the drive motor drives the lead screw to rotate, thereby moving the crossbeam.

[0013] Compared with existing technologies, this solution has the following advantages: the wire terminals and matching motors designed in this solution can provide a sufficiently large welding surface and contact points, while facilitating subsequent tensile tests; the designed testing mechanism can stably position the motor, ensuring the reliability of the testing process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the testing device.

[0015] Figure 2 for Figure 1 Enlarged image.

[0016] Figure 3 This is a schematic diagram of the terminal block structure.

[0017] The numbers shown in the figure are as follows: 1—House, 2—Drive shaft, 3—Cap, 4—Connecting pin plate, 5—Terminal, 6—Slot, 7—Limiting protrusion, 8—Clamping opening, 9—Insertion, 10—Limiting structure, 11—Bottom clamping mechanism, 12—Side clamping mechanism, 13—Top clamping mechanism, 14—Fixing plate, 15—Exposed hole, 16—Fixing screw, 17—Connecting seat, 18—Connecting rod, 19—Slot, 20—Locking rod, 21—Fixing hole, 22—Slide rail one, 23—Fixing block, 24—Positioning block, 26—Clamping groove, 27—Transverse slide structure, 28—Vertical slide structure, 29—Frame, 30—Crossbeam. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] The present invention will now be described in detail with reference to the accompanying drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Example 1

[0020] The MGU actuator motor includes a housing 1, within which a rotor and stator are installed. A drive shaft 2 extends from one end of the housing 1. The housing 1 has a cylindrical structure, and its upper end is a cover 3, which is connected and fixed to the housing 1 via a locking mechanism. The housing 1 is cylindrical, and a connecting pin 4 extends from the cover 3. A terminal 5 is welded and fixed to the connecting pin 4. The terminal 5 has a sheet-like structure, and its lower end is bent to form a slot 6. A protruding limiting point is formed on the upper side of the terminal 5 in the slot 6, and a clamping opening 8 is formed on the upper side of the protruding limiting point. The clamping opening 8 is formed by a V-shaped piece; the lower side of the clamping opening 8 forms a socket 9 for the terminal 5. Since the V-shaped piece is formed by stamping the socket 9, the V-shaped piece and the terminal 5 are integrally formed.

[0021] In this embodiment, the clamp 8 is perpendicular to the main body of the terminal 5. The clamp 8 serves to cover the wire, and the connecting wire is installed inside the clamp 8 and then clamped and welded. The slot 6 is formed by the gap between the limiting structure 10 and the main body of the terminal 5. The limiting structure 10 is a cylindrical structure with a semi-circular cross-section formed by bending the edge of the main body of the terminal 5. There are two semi-cylindrical structures, located on the left and right sides of the main body of the terminal 5, respectively. The connecting pin 4 is inserted into the slot 6 and abutted by the limiting protrusion 7. The edge of the connecting pin 4 is welded and fixed to the main body of the terminal 5. The connecting pin 4 and the main body of the terminal 5 are welded and fixed. This connection method has the advantages of a large welding surface and stable and reliable initial contact. Example 2

[0022] This embodiment provides a testing mechanism for detecting the reliability of the welding and fixing of the connecting pin 4 and the terminal 5 in Embodiment 1. The motor wire terminal welding testing mechanism in this solution, used for the aforementioned MGU actuator motor, includes a bottom clamping mechanism 11, a side clamping mechanism 12, and a top clamping mechanism 13. The bottom clamping mechanism 11 is provided to support the bottom of the MGU motor, the side clamping mechanism 12 clamps the side of the motor, and the top clamping mechanism 13 sets the axial direction of the motor and simultaneously limits the connection of the terminal 5.

[0023] To illustrate this solution, the top clamping mechanism 13 includes a fixing plate 14 and a positioning mechanism for connecting the terminal block 5. The fixing plate 14 has an exposed hole 15 in its center, through which the connecting pin 4 extends and is pressed against the upper surface of the motor. Fixing screws 16 are located at the four corners of the fixing plate 14, and these screws are fixedly connected to the top of the side clamping mechanism 12. The terminal block 5 extends from the exposed hole 15. In this embodiment, the terminal block 5 and the connecting pin 4 are isolated within the exposed hole 15, ensuring that subsequent inspections and pull-out tests do not affect the strength of the terminal block 5.

[0024] In this solution, the positioning mechanism includes a top connecting seat 17, a connecting rod 18 extending from the connecting seat 17, and a locking rod 20. The lower end of the locking rod 20 is provided with a limit post, which is inserted into the insertion hole. A tension sensor is provided on the limit post.

[0025] The connecting rod 18 is a cylindrical rod with a slot 19 on the side near the terminal 5. The locking rod 20 is fitted with the slot 19 and is installed inside the slot. A mounting hole is provided at the lower end of the connecting rod 18, and a limiting post passes through the insertion hole and is installed inside the mounting hole. The limiting post is perpendicular to the locking rod 20 and the connecting rod 18. Fixing holes 21 are provided on both the connecting rod 18 and the locking rod 20, and they are connected by bolts installed in the fixing holes 21. This structure is characterized by its ease of installation and fixation. Compared to a single rod structure, this structure allows for installation while positioning, without occupying extra space, and is also easy to operate.

[0026] The side clamping mechanism 12 includes a slide rail 22, with a fixing block 23 on the upper surface of the slide rail 22. A side positioning block 24 is mounted on the track of the slide rail 22, and the side positioning block 24 is connected to the fixing block 23 by adjusting bolts 25. Two sets of fixing blocks 23 and positioning blocks 24 are respectively located on the left and right sides of the motor. The positioning block 24 has a clamping groove 26 that clamps the outside of the motor, with a distance between the two clamping grooves 26 when clamped. The upper surface of the positioning block 24 is located below the upper surface of the motor. This slide rail design facilitates installation and fixation, allowing for easy adjustment and adaptation to motors of different sizes.

[0027] In this embodiment, the positioning block 24 includes a sliding part mounted on the slide rail 22 and a limiting part for limiting the motor. The limiting part and the sliding part are separate structures. This separate structure means that the limiting part can be detachably mounted on the sliding part. The sliding mechanism includes a transverse slide structure 27 and a longitudinal slide structure 28, which are perpendicular to each other. It also includes a mounting base, which is mounted on the longitudinal slide structure 28, and the longitudinal slide structure 28 is mounted on the transverse slide structure 27. It also includes a base, on which the transverse slide structure 27 is mounted.

[0028] The device also includes a frame 29 and a crossbeam 30. The base is mounted on the crossbeam 30. The frame 29 includes transmission chambers on both sides, in which a lead screw structure is installed. The lead screw is connected to a drive motor. The crossbeam 30 cooperates with the lead screw. The drive motor drives the lead screw to rotate, thereby moving the crossbeam.

[0029] In this solution, both the upper and lower sides of the crossbar are equipped with base structures, which can be connected to and installed with the aforementioned detection mechanism. During detection, simply clicking the reverse button will achieve the above function. Example 3

[0030] This embodiment discloses a testing method for the testing mechanism used in Embodiment 2. The testing mechanism installation and testing method includes the above-mentioned motor wire terminal welding testing mechanism, and the specific steps are as follows:

[0031] Step 1: Install the motor on the bottom clamping mechanism 11, and then clamp the motor with the side clamping mechanism 12;

[0032] Step 2: Fix the fixing plate 14 on the upper part of the motor, and fix it to the side clamping mechanism 12 with bolts. The motor is limited and fixed in the circumferential direction by the fixing plate 14, the bottom clamping mechanism 11 and the side clamping mechanism 12.

[0033] Step 3: Insert the limiting pin into the insertion hole and connect it with the mounting hole on the connecting rod 18; connect and lock the connecting rod 18 and the locking rod 20 with bolts.

[0034] Step 4: Start the drive motor to pull the crossbar and read the load when the connection terminal is desoldered.

Claims

1. A welding inspection mechanism for motor wire terminals, characterized in that: The motor is used for MGU actuators. The motor includes a housing (1), a rotor and a stator installed inside the housing (1), a drive shaft (2) extending from one end of the housing (1), the housing (1) is a cylindrical structure, the upper end of the housing (1) is a cover (3), a connecting pin piece (4) is led out from the cover (3), a terminal (5) is welded and fixed on the connecting pin piece (4), the terminal (5) is a sheet structure, the lower end of the terminal (5) is bent to form a slot (6), the upper side of the terminal (5) of the slot (6) is stamped to form a protruding limiting point, the upper side of the protruding limiting point is formed with a clamp (8), the clamp (8) is formed by a V-shaped piece; the lower side of the clamp (8) is formed with a socket (9); the clamp (8) is perpendicular to the main body of the terminal (5), and the gap between the slot (6) and the main body of the terminal (5) is formed by the limiting structure (10); The testing mechanism includes a bottom clamping mechanism (11), a side clamping mechanism (12), and a top clamping mechanism (13). The bottom clamping mechanism (11) is set to support the bottom of the MGU motor, the side clamping mechanism (12) is clamped on the side of the motor, and the top clamping mechanism (13) sets the axial direction of the motor and limits the connection of the wiring terminal (5).

2. The motor wire terminal welding inspection mechanism according to claim 1, characterized in that: The top clamping mechanism (13) includes a fixing plate (14) and a positioning mechanism for connecting the terminal block (5); the fixing plate (14) has an exposed hole (15) in the middle, and the connecting pin (4) extends out from the exposed hole (15) and is pressed on the upper end face of the motor; fixing screws (16) are provided at the four corners of the fixing plate (14), and the fixing screws (16) are fixedly connected to the top of the side clamping mechanism (12); the terminal block (5) extends out from the exposed hole (15).

3. The motor wire terminal welding inspection mechanism according to claim 2, characterized in that: The positioning mechanism includes a top connecting seat (17), a connecting rod (18) extending from the connecting seat (17), and a locking rod (20). The lower end of the locking rod (20) is provided with a limit post, which is inserted into the socket. A tension sensor is provided on the limit post.

4. The motor wire terminal welding inspection mechanism according to claim 3, characterized in that: The connecting rod (18) is a cylindrical rod. A slot (19) is provided on the side of the connecting rod (18) near the terminal (5). The shape of the locking rod (20) is adapted to the shape of the slot (19). The locking rod (20) is installed in the slot (19). An installation hole is provided at the lower end of the connecting rod (18). The limiting post passes through the insertion hole and is installed in the installation hole. The limiting post is set perpendicularly to the locking rod (20) and the connecting rod (18). Fixing holes (21) are provided on the connecting rod (18) and the locking rod (20). The two are connected by bolts installed in the fixing holes (21).

5. The motor wire terminal welding inspection mechanism according to claim 2, characterized in that: The side clamping mechanism (12) includes a slide rail (22), a fixed block (23) is provided on the upper end face of the slide rail (22), and a side positioning block (24) is installed on the track of the slide rail (22). The side positioning block (24) is connected to the fixed block (23) by adjusting bolts (25). There are two sets of fixed blocks (23) and positioning blocks (24) respectively located on the left and right sides of the motor. A clamping groove (26) is provided on the positioning block (24). The clamping groove (26) is clamped on the outside of the motor. There is a distance between the two clamping grooves (26) when they are clamped. The upper end face of the positioning block (24) is located below the upper end face of the motor.

6. The motor wire terminal welding inspection mechanism according to claim 5, characterized in that: The positioning block (24) includes a sliding part installed on the slide rail (22) and a limiting part for limiting the motor. The limiting part and the sliding part are separate structures. It includes a transverse slide structure (27) and a longitudinal slide structure (28). The transverse slide structure (27) and the longitudinal slide structure (28) are perpendicular to each other. It also includes a mounting base. The mounting base is installed on the longitudinal slide structure (28), and the longitudinal slide structure (28) is installed on the transverse slide structure (27). It also includes a base. The transverse slide structure (27) is installed on the base.

7. The motor wire terminal welding inspection mechanism according to claim 6, characterized in that: It also includes a frame (29) and a crossbeam (30). The base is installed on the crossbeam (30). The frame (29) includes transmission chambers on both sides, in which a lead screw structure is installed. The lead screw is connected to a drive motor. The crossbeam (30) cooperates with the lead screw. The drive motor drives the crossbar to move by rotating the lead screw.

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