Red dot detection device for riveting points on motor

By combining the red dot inspection mechanism with the conveying and moving mechanism, the automated inspection of the rivet points on the finished motor cover was achieved, solving the problems of missed and false inspections caused by manual inspection, improving the reliability and efficiency of inspection, and reducing costs.

CN223798078UActive Publication Date: 2026-01-13DONGGUAN QIXUN MOTOR TECH CO LTD
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Patent Information

Application Number
CN202520166722.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-01-13
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

In the existing technology, the quality inspection of the rivet points of the rubber cover of the finished motor requires manual visual inspection, which may lead to missed or false inspections and cannot achieve automated assembly line inspection.

Method used

By combining the red dot inspection mechanism and the conveying and moving mechanism, the quality of the rivet points of the finished motor cover is detected by the inspection head, and the defective products are magnetically attracted to the inclined slide groove by the magnetic component, so as to realize the automated inspection of the assembly line.

Benefits of technology

It enables automated inspection of the rivet points on finished motor covers, reducing fatigue and false detection rates associated with manual inspection, improving the reliability and efficiency of inspection, and at a lower cost than visual inspection equipment.

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Abstract

The utility model discloses a red dot detection device for riveting points on a motor, which comprises a carrying and moving mechanism, the carrying and moving mechanism comprises a front-back moving assembly and a left-right moving assembly, the left-right moving assembly is arranged on the front-back moving assembly, and a plurality of carrying jigs are arranged on the left-right moving assembly. The carrying jig clamps the motor finished product and moves front and back and left and right in the horizontal direction. The red dot detection mechanism comprises a detection plate, the detection plate is provided with a limiting passage for supporting a finished motor product, the limiting passage is provided with a light hole in the length direction, a detection head is installed below the light hole, the side portion of the detection plate is fixedly provided with an inclined sliding groove, a second baffle and a magnetic piece, the inclined sliding groove is formed below the second baffle, and the magnetic piece is arranged below the second baffle. A through hole is machined in the second baffle, and the magnetic piece does reciprocating rectilinear motion in the through hole and can magnetically attract the motor finished product. According to the device, the red dot detection mechanism is combined with the carrying and moving mechanism, whether the riveting dot quality of a rubber cover of a finished motor is qualified or not is detected in an assembly line mode, and the cost performance is high.
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Description

Technical Field

[0001] This utility model relates to the technical field of partial improvement design of motor testing mechanisms, and in particular to a red dot detection device for rivets on motors. Background Technology

[0002] Miniature motors have many components. The outer casing consists of a metal front cover and a metal rear cover. The rear cover is assembled to the internal components via multiple rubber cap rivets. Two rubber cap rivets are located on each side of the motor's terminals, such as... Figure 6 As shown, current quality inspection of finished motors still requires manual visual inspection, making automated assembly line inspection impossible. This is especially true for the inspection of the quality of rubber caps and rivets on finished motors. This repetitive, manual inspection can easily lead to operator fatigue, resulting in missed or incorrect inspections.

[0003] In the prior art, patent CN219201358U discloses a device for detecting stator rivets and weld points of an electric motor, including a conveying component and an identification component. The conveying component includes a first reciprocating device and a positioning seat disposed on the movable end of the first reciprocating device. The first reciprocating device has a detection point, and the movable end of the first reciprocating device passes through the detection point. The identification component includes a computer and a CCD camera that are interconnected, with the camera end of the CCD camera facing the detection point. This invention can improve the reliability of detecting rivets and weld points on the stator and terminal block.

[0004] Patent CN208924054U discloses an electric motor production line, including a line body with a material unloading station, an oiling station, an assembly station, a magnetizing station, a pressing station, an inspection station, a parameter download station, a break-in station, a hot riveting station, and a marking station. The oiling station includes a first oiling station and a second oiling station; the first oiling station is used for oiling the stator and gearbox; the second oiling station is used for oiling the turbine disk. The assembly station includes a first assembly station, a second assembly station, a third assembly station, and a fourth assembly station; the first assembly station is used for assembling the rotor; the fourth assembly station is used for automatically assembling the sealing ring and the turbine disk. This achieves automatic assembly, automatic inspection, automatic feeding, and automatic pressing of the electric motor, with a fast cycle time, low scrap rate, improved product quality, guaranteed product stability, reduced number of operators, and reduced manufacturing costs.

[0005] In order to solve one of the above problems, this application provides a red dot detection device for rivets on motors. Utility Model Content

[0006] The purpose of this utility model is to solve the problems existing in the prior art and to propose a red dot detection device for rivets on motors. By combining the red dot detection mechanism with the conveying and moving mechanism, the device can perform assembly-line inspection of the quality of the rivets on the rubber caps of finished motors, which is cost-effective.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a red dot detection device for rivets on a motor, comprising a conveying and moving mechanism, wherein the conveying and moving mechanism comprises a front-to-back moving component and a left-to-right moving component, the left-to-right moving component is mounted on the front-to-back moving component, and the left-to-right moving component is provided with a plurality of conveying jigs, the conveying jigs clamp the finished motor and move it back and forth and left and right in the horizontal direction.

[0008] The red dot detection mechanism includes a detection plate with a limiting passage for supporting the finished motor. The limiting passage has a light-transmitting hole processed along its length. A detection head is installed below the light-transmitting hole. An inclined slide groove, a second baffle, and a magnetic component are fixed to the side of the detection plate. The inclined slide groove is located below the second baffle. A through hole is processed on the second baffle. The magnetic component reciprocates linearly within the through hole and can magnetically attract the finished motor.

[0009] Furthermore, as described above, the forward and backward moving assembly includes a third cylinder and a forward and backward moving plate, the forward and backward moving plate being fixed on the telescopic shaft of the third cylinder, and the third cylinder being mounted on the third fixed plate.

[0010] Furthermore, as described above, the left and right moving assembly includes a fourth cylinder and a left and right moving plate. The left and right moving plate is connected to an intermediate plate, the intermediate plate is fixed on the telescopic shaft of the fourth cylinder, and the fourth cylinder is mounted on a fourth fixed plate.

[0011] Furthermore, as described above, the front and rear moving plates are fixed on the third slider, the third slider is slidably mounted on the third linear guide rail, and the third linear guide rail is fixed on the second vertical plate; the left and right moving plates are fixed on the fourth slider, the fourth slider is slidably mounted on the fourth linear guide rail, and the fourth linear guide rail and the fourth fixed plate are both fixed on the front and rear moving plates.

[0012] Furthermore, as described above, the handling fixture includes grippers, with positioning sleeves provided below the grippers and mounted on the left and right moving plates via fixing sleeves.

[0013] Furthermore, as described above, the bottom of the detection plate is supported by a third upright plate, on which a mounting plate is fixed, and the detection head is mounted.

[0014] Furthermore, as described above, the length direction of the limiting passage is parallel to the left and right movement direction of the transport fixture.

[0015] Furthermore, as described above, a fifth fixing plate is provided on the side of the detection plate. A second baffle and a fifth cylinder are installed on the fifth fixing plate. A magnetic component is fixed on the telescopic shaft of the fifth cylinder, and the movement direction of the magnetic component is perpendicular to the length direction of the limiting passage.

[0016] Furthermore, as described above, the fifth fixing plate is located on the side of the inclined slide.

[0017] Furthermore, as described above, the bottoms of both the conveying and moving mechanism and the red-point detection mechanism are mounted on the workbench.

[0018] Compared with the prior art, the beneficial effects of this utility model are: several handling fixtures move back and forth and left and right in the horizontal direction to place the delivered motor finished products on each testing station for subsequent testing processes. The overall handling and transfer operation is continuous, simple and stable.

[0019] This device combines a red dot inspection mechanism with a conveying and moving mechanism to inspect the quality of the rubber caps and rivets on finished motor products in an assembly line manner. Qualified products continue to be held and moved to the left along the limit channel by the conveying fixture, while unqualified products are magnetically attracted and blocked by the magnetic components and fall into the inclined slide. The cost of the red dot inspection mechanism is lower than that of visual inspection equipment with the same function, making it cost-effective. Attached Figure Description

[0020] Figure 1 This is a top view of the present invention;

[0021] Figure 2 This is a perspective view of the conveying and moving mechanism of this utility model;

[0022] Figure 3 for Figure 2 An explosion diagram;

[0023] Figure 4 This is a perspective view of the red dot detection mechanism of this utility model;

[0024] Figure 5 for Figure 4 An explosion diagram;

[0025] Figure 6 This is a 3D view of the finished motor.

[0026] In the diagram: 2. Conveying and moving mechanism; 22. Third fixed plate; 23. Second upright plate; 24. Forward and backward moving assembly; 241. Third cylinder; 242. Third linear guide rail; 243. Third slider; 244. Forward and backward moving plate; 25. Fourth fixed plate; 26. Left and right moving assembly; 261. Fourth cylinder; 262. Fourth linear guide rail; 263. Fourth slider; 264. Left and right moving plate; 265. Intermediate plate; 2 8. Handling fixture; 280. Gripper; 281. Positioning sleeve; 282. Fixing sleeve; 3. Red dot inspection mechanism; 30. Fifth cylinder; 31. Magnetic component; 32. Fifth fixing plate; 33. Second baffle; 34. Inclined slide; 35. Detection plate; 350. Limiting passage; 3500. Light-transmitting hole; 36. Detection head; 37. Mounting plate; 38. Third upright plate; 4. Finished motor; 40. Glue cap rivet point; 41. Terminal. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," "set," etc., should be interpreted broadly. For example, when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "installed" on another element, it can be directly installed on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within the two elements.

[0029] Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] Reference Figure 1-6 As shown, this utility model discloses a red dot detection device for rivets on a motor, comprising a conveying and moving mechanism 2, which includes a front-to-back moving component 24 and a left-to-right moving component 26. The left-to-right moving component 26 is mounted on the front-to-back moving component 24, and a plurality of conveying jigs 28 are provided on the left-to-right moving component 26. The conveying jigs 28 clamp the finished motor 4 and move it back and forth and left and right in the horizontal direction. A red dot detection mechanism 3 includes a detection plate 35, which has a limiting passage 350 supporting the finished motor 4. The limiting passage 350 has a light-transmitting hole 3500 processed in the length direction. A detection head 36 is installed below the light-transmitting hole 3500. The side of the detection plate 35 is fixed with an inclined slide groove 34, a second baffle 33 and a magnetic component 31. The inclined slide groove 34 is located below the second baffle 33. The second baffle 33 has a through hole processed in it. The magnetic component 31 reciprocates linearly within the through hole and can magnetically attract the finished motor 4.

[0033] A schematic diagram of the finished motor 4 of this device is shown below. Figure 6As shown, the outer casing consists of an iron cover and an iron rear cover. The iron rear cover is assembled with internal components via multiple rubber cap rivets 40. Two rubber cap rivets 40 are provided on each side of the two terminals 41 of the motor. The two rubber cap rivets 40 are red dots and another dot of a different color that is symmetrical to the red dot. The function of the conveying and moving mechanism 2 is as follows: First, after the front-to-back moving component 24 moves forward to its position, the conveying fixture 28 clamps the finished motor 4. Then, the left-to-right moving component 26 moves to the left to transport the finished motor 4 to the red dot inspection station to cooperate with the red dot inspection mechanism 3 (the inspection equipment has multiple inspection stations with different functions). After being transported to its position, the finished motor 4 is located on the limiting passage 350 of the inspection plate 35. After the red dot inspection operation is completed, the front-to-back moving component 24 and the left-to-right moving component 26 are reset, and the entire operation process is completed, and the next operation process is repeated. The function of the red dot detection mechanism 3 is that the detection head 36 illuminates the rubber cap rivet point 40 on the bottom of the finished motor 4. The sensor on the detection head 36 is a special color-differentiation sensor. When the actual detected data exceeds the set value (such as the red dot being misplaced / not being spotted / both rubber cap rivet points 40 being spotted with red dots, etc.), the magnetic component 31 moves outward linearly through the through hole of the second baffle 33 and contacts the finished motor 4. Then it moves backward and removes the magnetically attracted finished motor 4 from the limit passage 350. When the finished motor 4 touches the second baffle 33, it is blocked and detaches from the magnetic component 31. Under its own gravity, it falls into the inclined slide 34 next to the second baffle 33 and finally falls into the special defective product placement box (not shown in the figure). Conversely, when the actual detected data meets the set value, the magnetic component 31 remains in place, the quality of the red dot detection of the finished motor 4 is qualified, and the conveying and moving mechanism 2 repeats the above actions.

[0034] Example 2

[0035] Reference Figure 1-6 As shown, based on the technical solution of Embodiment 1, a red dot detection device for rivets on a motor, for the specific structure of the conveying and moving mechanism 2, is as follows: Figure 2-3It is understood that the forward and backward moving assembly 24 includes a third cylinder 241 and a forward and backward moving plate 244. The forward and backward moving plate 244 is fixed on the telescopic shaft of the third cylinder 241. The third cylinder 241 is mounted on the third fixed plate 22. The third cylinder 241 pushes the forward and backward moving plate 244 to move forward or backward. In addition, the left and right moving assembly 26 includes a fourth cylinder 261 and a left and right moving plate 264. The left and right moving plate 264 is connected to an intermediate plate 265. The intermediate plate 265 is fixed on the telescopic shaft of the fourth cylinder 261. The fourth cylinder 261 is mounted on the fourth fixed plate 25. The fourth cylinder 261 pushes the intermediate plate 265 to move left and right, thereby driving the left and right moving plate 264 to move linearly to the left or right. To ensure the directional linear motion of the front-to-back moving plate 244 and the left-to-right moving plate 264, the front-to-back moving plate 244 is fixed on the third slider 243, which is slidably mounted on the third linear guide rail 242, which is fixed on the second upright plate 23; the left-to-right moving plate 264 is fixed on the fourth slider 263, which is slidably mounted on the fourth linear guide rail 262, and both the fourth linear guide rail 262 and the fourth fixed plate 25 are fixed on the front-to-back moving plate 244.

[0036] Furthermore, the transport fixture 28 includes a gripper 280, with a positioning sleeve 281 below the gripper 280 and mounted on the left and right moving plates 264 via a fixing sleeve 282. One end of the gripper 280 is partially covered by the sleeve, which connects to the left and right moving plates 264 and abuts one end of the gripper against the upper surface of the plates 264. The other end of the gripper is a semi-circular groove that matches the outer diameter of the finished motor 4. The positioning sleeve 281 is added to lift and support the bottom of the finished motor 4, and also to position and limit the terminals 41 at the bottom of the finished motor 4, facilitating subsequent testing operations. In addition, the bottoms of the transport mechanism 2 and the inspection point mechanism 3 are both mounted on a workbench. The workbench, as part of the motor testing equipment, provides installation space for mechanisms at various subsequent testing stations.

[0037] Example 3

[0038] Reference Figure 1-6 As shown, based on the technical solution of the above embodiments, a red dot detection device for rivets on a motor, regarding the specific structure of the red dot detection mechanism 3, is as follows: Figure 4-5 It is understood that the bottom of the detection plate 35 is supported by the third upright plate 38, which is mounted on the workbench. A mounting plate 37 is fixed on the third upright plate 38, and a detection head 36 is mounted on the mounting plate 37. Since there are four end cap rivet points and two terminals 41, with two end cap rivet points on each side of each terminal 41, two detection heads 36 are also required. Two light-transmitting holes 3500 are correspondingly machined on the limiting passage 350.

[0039] Furthermore, the length direction of the limiting passage 350 is parallel to the left-right movement direction of the transport fixture 28, facilitating the smooth transfer of the finished motor 4. Additionally, a fifth fixing plate 32 is provided on the side of the detection plate 35. A second baffle 33 and a fifth cylinder 30 are mounted on the fifth fixing plate 32. A magnetic component 31, typically a magnet or lodestone, is fixed to the telescopic shaft of the fifth cylinder 30. The magnetic component 31 is cylindrical and matches the shape of the through-hole machined on the second baffle 33. Driven by the fifth cylinder 30, the magnetic component 31 reciprocates linearly in a direction perpendicular to the length direction of the limiting passage 350. Furthermore, the fifth fixing plate 32 is located on the side of the inclined slide 34, allowing the second baffle 33 to block the finished motor 4 magnetically attracted to the magnetic component 31 and allow it to slide into the inclined slide 34.

[0040] The operation steps of this utility model device are as follows: the front-end feeding device conveys the finished motor 4; the third cylinder 241 operates, driving the transport fixture 28 to move forward so that the finished motor 4 is clamped by the transport fixture 28; then the fourth cylinder 261 operates, driving the transport fixture 28 to move to the left, moving the finished motor 4 one station to the corresponding position of the red dot inspection station, that is, the rubber cap rivet point 40 of the finished motor 4 is above the light-transmitting hole 3500; the two detection heads 36 begin the red dot inspection operation. The specific detection principle is not described in detail here. When the detection head... When the finished product 4 fails to meet quality standards, the fifth cylinder 30 drives the magnetic component 31 to extend outward through the through hole on the second baffle 33 and magnetically attract the finished product 4. Then, the fifth cylinder 30 resets and drives the magnetic component 31 and the finished product 4 to retreat until the finished product 4 is blocked by the second baffle 33 and falls into the inclined slide 34. The conveying and moving mechanism 2 then resets. When the finished product 4 passes quality inspection, the fifth cylinder 30 does not start working, the conveying and moving mechanism 2 resets and repeats the above actions to move the finished product 4 to the next inspection station.

[0041] In this utility model device, the assembly and cooperation of various components, sensors, cylinders and motors and their supporting control software are existing technologies or materials. The relevant technical personnel can directly purchase or order them from the market according to the required product model and specifications.

[0042] All electrical components mentioned in the text are connected to an external main controller and 220V AC mains power or industrial power. The main controller can be a conventional known device such as a computer that plays a control role.

[0043] The above description is merely a preferred embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It is obvious to those skilled in the art that this utility model is not limited to the details of the above embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model.

Claims

1. A red dot detection device for rivets on an electric motor, characterized in that, The conveying mechanism (2) includes a front-to-back moving component (24) and a left-to-right moving component (26). The left-to-right moving component (26) is installed on the front-to-back moving component (24). The left-to-right moving component (26) is provided with a plurality of transport jigs (28). The transport jigs (28) clamp the finished motor (4) and move it back and forth and left and right in the horizontal direction. The red dot detection mechanism (3) includes a detection plate (35). The detection plate (35) is provided with a limiting passage (350) for supporting the finished motor (4). The limiting passage (350) has a light-transmitting hole (3500) in the length direction. A detection head (36) is installed below the light-transmitting hole (3500). The side of the detection plate (35) is fixed with an inclined slide groove (34), a second baffle (33) and a magnetic component (31). The inclined slide groove (34) is located below the second baffle (33). A through hole is processed on the second baffle (33). The magnetic component (31) moves back and forth linearly in the through hole and can magnetically attract the finished motor (4).

2. The red dot detection device for rivets on a motor according to claim 1, characterized in that, The aforementioned forward and backward moving assembly (24) includes a third cylinder (241) and a forward and backward moving plate (244). The forward and backward moving plate (244) is fixed on the telescopic shaft of the third cylinder (241), and the third cylinder (241) is mounted on the third fixed plate (22).

3. The red dot detection device for rivets on a motor according to claim 2, characterized in that, The left and right moving assembly (26) includes a fourth cylinder (261) and a left and right moving plate (264). The left and right moving plate (264) is connected to an intermediate plate (265). The intermediate plate (265) is fixed on the telescopic shaft of the fourth cylinder (261). The fourth cylinder (261) is mounted on a fourth fixed plate (25).

4. The red dot detection device for rivets on a motor according to claim 3, characterized in that, The front and rear moving plate (244) is fixed on the third slider (243), the third slider (243) is slidably mounted on the third linear guide (242), and the third linear guide (242) is fixed on the second upright plate (23); the left and right moving plate (264) is fixed on the fourth slider (263), the fourth slider (263) is slidably mounted on the fourth linear guide (262), and the fourth linear guide (262) and the fourth fixed plate (25) are both fixed on the front and rear moving plate (244).

5. The red dot detection device for rivets on a motor according to claim 4, characterized in that, The transport fixture (28) includes a gripper (280), a positioning sleeve (281) is provided below the gripper (280) and is installed on the left and right moving plates (264) through a fixing sleeve (282).

6. The red dot detection device for rivets on a motor according to claim 1, characterized in that, The bottom of the detection plate (35) is supported by a third upright plate (38), and an mounting plate (37) is fixed on the third upright plate (38). The detection head (36) is mounted on the mounting plate (37).

7. The red dot detection device for rivets on a motor according to claim 6, characterized in that, The length direction of the limiting passage (350) is parallel to the left and right movement direction of the transport fixture (28).

8. The red dot detection device for rivets on a motor according to claim 7, characterized in that, The detection plate (35) is provided with a fifth fixing plate (32) on its side. A second baffle (33) and a fifth cylinder (30) are installed on the fifth fixing plate (32). A magnetic component (31) is fixed on the telescopic shaft of the fifth cylinder (30). The movement direction of the magnetic component (31) is perpendicular to the length direction of the limiting passage (350).

9. The red dot detection device for rivets on a motor according to claim 8, characterized in that, The fifth fixing plate (32) is located on the side of the inclined slide (34).

10. A red dot detection device for rivets on a motor according to any one of claims 1-9, characterized in that, The bottoms of the conveying and moving mechanism (2) and the red spot detection mechanism (3) are both mounted on the workbench.

Citation Information

Patent Citations

  • Motor production line

    CN208924054U

  • Stator riveting point and welding point detection device of motor

    CN219201358U