Length detection device for output shaft of motor

Abstract

The utility model discloses a length detection device for an output shaft of 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 front-back moving assembly is provided with the left-right moving assembly, and the left-right moving assembly is provided with a plurality of carrying jigs. The carrying jig clamps the motor finished product and moves front and back and left and right in the horizontal direction. The shaft length detection mechanism comprises a detection plate and a shaft length detection assembly, the motor finished product clamped by the carrying jig is placed on the detection plate, the shaft length detection assembly is arranged above the detection plate and comprises a liftable sliding plate, a detection column and a detection head which move up and down are installed on the sliding plate, an induction plate is arranged outside the detection column, and the induction plate is arranged on the detection plate. The induction plate is located below the detection head, and the sliding plate descends to make the detection column contact the output shaft of the motor finished product and make contact with the detection head through the induction plate to detect whether the length of the output shaft is qualified. The device can quickly detect whether the length of the output shaft of the motor is qualified or not through the shaft length detection mechanism.

Description

Technical Field

[0001] This utility model relates to the technical field of partial improvement design of motor product quality inspection equipment, and in particular to a device for detecting the output shaft length of a motor. Background Technology

[0002] For micro motors, the output shaft is a crucial transmission component, and the required length varies depending on the size of the motor. Currently, the length of the motor output shaft is typically measured manually with a ruler, which can lead to inaccuracies. Alternatively, machine vision length measurement equipment can be used, employing one or more industrial cameras to capture clear images of the object being measured, depending on the length range and accuracy requirements. However, this process is complex and costly.

[0003] In the prior art, patent CN222211485U discloses a motor shaft length detection device, including a fixed plate. Multiple motor shaft supports are evenly distributed on the upper surface of the fixed plate. An L-shaped guard plate is provided at the upper end of the fixed plate. A crossbar is vertically fixed to one side of the L-shaped guard plate. The surface of the crossbar is evenly distributed with graduations. A slider is slidably connected to the outer side of the crossbar. A groove is provided at the lower end of the slider. A rotatable shaft is disposed within the groove. A connecting rod is fixed to the outer side of the shaft. A clamping plate is fixed to one end of the connecting rod. This motor shaft length detection device can improve the accuracy of motor shaft length detection and eliminates the need for reciprocating transport of the motor shaft, saving time and improving work efficiency.

[0004] Patent CN117029748B discloses a motor shaft length detection device, including a detection platform. The top surface of the detection platform has a notch, within which a conveyor belt is installed. A pair of fixed plates are centrally symmetrically arranged on the top surface of the detection platform, and a sliding groove is formed on one side of each pair of fixed plates. In this motor shaft length detection device, a pressure plate presses against the end of the motor shaft during detection. The pressure plate then pushes an inclined block to move, and the moving distance is detected by a displacement sensor connected to a microcomputer. The microcomputer calculates the length of the motor shaft based on the displacement of the sensor. Afterward, the pressure plate releases the motor shaft, and the length detection is repeated through the cooperation of a first telescopic rod, a second telescopic rod, and the conveyor belt. The entire detection process is automatic according to a pre-set program, making it convenient to operate and cheaper than machine vision length measurement systems, thus saving costs for enterprises.

[0005] In order to solve one of the above problems, this application provides a device for detecting the output shaft length of a motor. Utility Model Content

[0006] The purpose of this invention is to solve the problems existing in the prior art by proposing a motor output shaft length detection device, which can quickly detect whether the output shaft length of the finished motor is qualified through a shaft length detection mechanism.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an output shaft length detection device for 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 shaft length detection mechanism includes a detection plate and a shaft length detection component. The finished motor held by the transport fixture is placed on the detection plate. The shaft length detection component is located above the detection plate. The shaft length detection component includes a liftable sliding plate. A detection column and a detection head that can move up and down are installed on the sliding plate. A sensing plate is set outside the detection column and is located below the detection head. The sliding plate descends so that the detection column contacts the output shaft of the finished motor and then contacts the detection head through the sensing plate to detect whether the length of the output shaft is qualified.

[0009] Furthermore, as described above, the sliding plate is provided with an upper boss and a lower boss, the upper boss and the lower boss are arranged opposite each other and are machined with through holes to accommodate the detection column, the detection column is fitted into the mounting sleeve, and the mounting sleeve is arranged between the upper boss and the lower boss.

[0010] Furthermore, as described above, a mounting plate is placed on the mounting sleeve, and a sensing plate is mounted on the mounting plate. Both the mounting plate and the sensing plate have openings to accommodate the detection column.

[0011] Furthermore, as described above, a locking block is fixed to the side of the sliding plate. The locking block is machined with a locking hole to accommodate the detection head. The detection head moves within the locking hole and has a lower limit position. The detection head includes two detection heads with different lower limit positions: a long axis detection head and a short axis detection head.

[0012] Furthermore, as described above, the sliding plate is mounted on the tenth slider, the tenth slider is slidably mounted on the tenth linear guide rail, the tenth linear guide rail is fixed on the vertical plate, the vertical plate is mounted on the tenth fixed plate, the tenth cylinder is mounted on the tenth fixed plate, the tenth cylinder is connected to the first connecting plate, the second connecting plate is fixed on the first connecting plate, and the sliding plate is connected to the side of the second connecting plate; the tenth fixed plate is mounted on the baffle, the baffle is fixed on the detection plate, and the detection plate is mounted on the vertical plate.

[0013] Furthermore, as described above, both the detection head and the sensing plate are made of conductive materials and are connected to an external controller via signal lines.

[0014] Furthermore, as described above, the bottoms of both the conveying and moving mechanism and the shaft length inspection mechanism are mounted on the worktable.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the structure of this device is ingenious and the operation is simple. The addition of the shaft length detection mechanism can quickly detect whether the output shaft length of the finished motor is qualified. First, the detection head descends with the sliding plate and abuts against the output shaft of the finished motor. Then the sliding plate continues to lower its height until the sensing plate contacts the detection head. The two detection heads with different heights contact the sensing plate. The feedback signal of the contact between the sensing plate and the detection head is used to determine whether the length of the output shaft is qualified. Attached Figure Description

[0016] Figure 1 This is a top view of the present invention;

[0017] Figure 2 This is a perspective view of the conveying and moving mechanism of this utility model;

[0018] Figure 3 for Figure 2 An explosion diagram;

[0019] Figure 4 The three-dimensional structure of the shaft length detection mechanism of this utility model Figure 1 ;

[0020] Figure 5 for Figure 4 An explosion diagram;

[0021] Figure 6 The three-dimensional structure of the shaft length detection mechanism of this utility model Figure 1 ;

[0022] Figure 7 for Figure 4 The front view of the vertical panel is omitted.

[0023] 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; 28. Handling fixture; 280. Gripper. ; 281. Positioning sleeve; 282. Fixing sleeve; 4. Finished motor; 8. Shaft length inspection mechanism; 80. Vertical plate; 81. Detection plate; 82. Baffle; 83. First connecting plate; 84. Tenth fixing plate; 85. Second connecting plate; 86. Tenth linear guide rail; 87. Vertical plate; 88. Tenth cylinder; 890. Detection column; 891. Mounting sleeve; 892. Mounting plate; 893. Sensing plate; 894. Sliding plate; 895. Detection head; 896. Clamping block. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] 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.

[0028] Example 1

[0029] Reference Figure 1-7As shown, this utility model discloses a motor output shaft length detection device, including a conveying and moving mechanism 2. The conveying and moving 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 conveying jigs 28. The conveying jigs 28 clamp the finished motor 4 and move it back and forth and left and right in the horizontal direction. The shaft length detection mechanism 8 includes a detection plate 81 and a shaft length detection component. The finished motor 4 clamped by the conveying jigs 28 is placed on the detection plate 81. The shaft length detection component is provided above the detection plate 81. The shaft length detection component includes a liftable sliding plate 894. The sliding plate 894 is equipped with a vertically movable detection column 890 and a detection head 895. A sensing plate 893 is provided outside the detection column 890. The sensing plate 893 is located below the detection head 895. The sliding plate 894 descends so that the detection column 890 contacts the output shaft of the finished motor 4 and contacts the detection head 895 through the sensing plate 893 to detect whether the length of the output shaft is qualified. In actual production, the detection head 895 includes two long-axis detection heads and a short-axis detection head with different lower limit positions. Both detection heads 895 and the sensing plate 893 are made of conductive materials (such as copper) and are respectively connected to an external controller through signal lines. The controller is a device of existing mature technology and will not be described in detail here.

[0030] This device is suitable for detecting the output shaft length of small or micro motor finished products 4. When the conveying and moving mechanism 2 transports the motor finished product 4 to the detection plate 81 of the shaft length detection station, the shaft length detection mechanism 8 starts to work, the sliding plate 894 starts to descend, and the height of the shaft length detection component decreases. When the detection column 890 contacts the output shaft of the motor finished product 4, the detection column 890 stops descending and the sensing plate 893 remains stationary. At this time, the sliding plate 894 continues to descend until it reaches the working position, pauses briefly, and then rises to reset, completing the operation. Since signal lines are led from the controller to the sensing plate 893 and two detection heads 895, when the sliding plate 894 is pressed down to the position (the lifting height is set according to the detection requirements), the detection signal will return to the controller through the detection head 895 that is in contact with the sensing plate 893, so as to determine whether the shaft length of the output shaft is qualified. The specific judgment criteria are as follows: if the short shaft detection head in the lower position is not in contact, no signal is input to the controller, and it is judged as short shaft, which is unqualified; if the long shaft detection head in the higher position is in contact, it is judged as long shaft, which is unqualified; if the short shaft detection head is in contact but the long shaft detection head is not in contact, it is judged as good product, which is qualified.

[0031] Example 2

[0032] Reference Figure 1-7 As shown, based on the technical solution of Embodiment 1, a motor output shaft length detection device, 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.

[0033] 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 at the bottom of the finished motor 4, facilitating subsequent testing operations. In addition, the bottoms of the transport mechanism 2 and the shaft length inspection mechanism 8 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.

[0034] Example 3

[0035] Reference Figure 1-7 As shown, based on the technical solution of the above embodiments, a motor output shaft length detection device, regarding the specific structure of the shaft length detection mechanism 8, is as follows: Figure 4-7It is understood that the sliding plate 894 has an upper boss and a lower boss, which serve as upper and lower limits. The upper and lower bosses are arranged opposite each other and machined with through holes to accommodate the detection column 890. The through holes can serve as guides and are in clearance fit with the detection column 890. The detection column 890 is fitted into the mounting sleeve 891, which is located between the upper and lower bosses. The lifting range of the mounting sleeve 891 is limited to the area between the upper and lower bosses. In addition, a mounting plate 892 is placed on the mounting sleeve 891, and a sensing plate 893 is mounted on the mounting plate 892. Both the mounting plate 892 and the sensing plate 893 have openings to accommodate the detection column 890. The positions of the mounting plate 892 and the sensing plate 893 change with the height of the mounting sleeve 891.

[0036] Furthermore, a locking block 896 is fixed to the side of the sliding plate 894. The locking block 896 is machined with a locking hole to accommodate the detection head 895. The detection head 895 moves within the locking hole and has a lower limit position, that is, the detection head 895 can move up and down within the locking block 896. A step or other limiting insert is machined within the locking hole so that the detection head 895 meets the minimum height requirement of the bottom of the detection head 895 under its own weight. Furthermore, the sliding plate 894 is mounted on the tenth slider, which is slidably mounted on the tenth linear guide rail 86, providing both guiding and sliding functions. The tenth linear guide rail 86 is fixed to the vertical plate 87, which is mounted on the tenth fixed plate 84. The tenth cylinder 88 is mounted on the tenth fixed plate 84 and connected to the first connecting plate 83. The second connecting plate 85 is fixed to the first connecting plate 83, and the sliding plate 894 is fixed to the second connecting plate 85. Since the tenth cylinder 88 is mounted laterally, reducing the vertical installation space, it is necessary to design two connecting plates to indirectly drive the sliding plate 894 to move up and down. The tenth fixed plate 84 is mounted on the baffle 82, which is fixed to the detection plate 81. The detection plate 81 is mounted on the vertical plate 80, which is fixed to the workbench of the motor testing equipment.

[0037] Working principle: For the conveying and moving mechanism 2, the forward and backward moving component 24 first moves forward to its position, causing the conveying fixture 28 to hold the finished motor 4. Then, the left and right moving component 26 moves to the left to move the finished motor 4 to the shaft length inspection station to work with the shaft length inspection component (the inspection equipment is equipped with multiple inspection stations with different functions). After the finished motor 4 is in place, it is located on the inspection plate 65. After the shaft length inspection operation is completed, the forward and backward moving component 24 and the left and right moving component 26 are reset, and the entire action process is completed. The next operation process is repeated. Regarding the operation of the shaft length inspection mechanism 8, when the conveying and moving mechanism 2 transports the finished motor 4 to the inspection plate 81 at the shaft length inspection station, the tenth cylinder 88 of the shaft length inspection component starts to work, driving the sliding plate 894 to begin to descend, causing the height of the inspection column 890 to continuously decrease until it contacts the output shaft of the finished motor 4. At this time, the inspection column 890 stops descending and the sensing plate 893 remains stationary, while the sliding plate 894 continues to descend under the drive of the tenth cylinder 88 until it reaches the working position (that is, the descending height of the tenth cylinder 88 is set according to the actual situation, specifically referring to the descending height from the time the inspection column 890 contacts the output shaft until the tenth cylinder 88 stops working). After the controller receives the signal, the tenth cylinder 88 rises and resets, and the entire shaft length inspection operation is completed.

[0038] In this utility model device, the assembly and coordination relationships of the various components, the cylinder and controller and their supporting control software are existing technologies or materials, and the relevant technical personnel can directly purchase or order them from the market according to the required product model and specifications.

[0039] 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.

[0040] 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 device for detecting the output shaft length of a motor, characterized in that, The application relates to a motor product conveying device, which comprises a conveying moving mechanism (2), a front-back moving assembly (24) and a left-right moving assembly (26), the left-right moving assembly (26) is installed on the front-back moving assembly (24), a plurality of conveying jigs (28) are arranged on the left-right moving assembly (26), the conveying jigs (28) clamp motor products (4) and move in the horizontal direction forward and backward and left and right; The application also discloses a shaft length detecting mechanism (8), the motor product (4) clamped by the conveying jig (28) is placed on a detection plate (81), a shaft length detecting assembly is arranged above the detection plate (81), the shaft length detecting assembly comprises a liftable sliding plate (894), a detection column (890) and a detection head (895) which can move up and down are installed on the sliding plate (894), a sensing plate (893) is arranged outside the detection column (890), the sensing plate (893) is located below the detection head (895), the sliding plate (894) is lowered to make the detection column (890) contact the output shaft of the motor product (4) and contact the detection head (895) through the sensing plate (893) to detect whether the length of the output shaft is qualified.

2. The output shaft length detection device of an electric motor according to claim 1, characterized by The front-back moving assembly (24) comprises a third cylinder (241) and a front-back moving plate (244), the front-back moving plate (244) is fixed on the telescopic shaft of the third cylinder (241), and the third cylinder (241) is installed on the third fixed plate (22).

3. The output shaft length detection device of an electric motor according to claim 2, characterized by The left-right moving assembly (26) comprises a fourth cylinder (261) and a left-right moving plate (264), the left-right moving plate (264) is connected with an intermediate plate (265), the intermediate plate (265) is fixed on the telescopic shaft of the fourth cylinder (261), and the fourth cylinder (261) is installed on the fourth fixed plate (25).

4. The output shaft length detection device of an electric motor according to claim 3, characterized by The front-back moving plate (244) is fixed on a third sliding block (243), the third sliding block (243) is slidably arranged on a third linear guide rail (242), and the third linear guide rail (242) is fixed on the second vertical plate (23); the left-right moving plate (264) is fixed on a fourth sliding block (263), the fourth sliding block (263) is slidably arranged on a fourth linear guide rail (262), and the fourth linear guide rail (262) and the fourth fixed plate (25) are both fixed on the front-back moving plate (244).

5. The output shaft length detection device of an electric motor according to claim 1, characterized by The sliding plate (894) is provided with an upper convex platform and a lower convex platform, the upper convex platform and the lower convex platform are oppositely arranged and are processed with through holes for accommodating the detection column (890), the detection column (890) is sleeved in a mounting sleeve (891), and the mounting sleeve (891) is arranged between the upper convex platform and the lower convex platform.

6. The output shaft length detection device of an electric motor according to claim 5, characterized by The mounting sleeve (891) is placed with a mounting plate (892), the mounting plate (892) is installed with the sensing plate (893), and the mounting plate (892) and the sensing plate (893) are both punched to accommodate the detection column (890).

7. The output shaft length detection device of an electric motor according to claim 6, characterized by The side of the sliding plate (894) is fixed with a clamping block (896), the clamping block (896) is processed with a clamping hole for accommodating a detection head (895), the detection head (895) is movable in the clamping hole and is provided with a lower limit position, the detection head (895) comprises two long axis detection heads and short axis detection heads with different lower limit positions.

8. The output shaft length detection device of an electric motor according to claim 7, characterized by The sliding plate (894) is installed on the tenth sliding block, the tenth sliding block is slidably arranged on the tenth linear guide rail (86), the tenth linear guide rail (86) is fixed on the vertical plate (87), the vertical plate (87) is installed on the tenth fixed plate (84), the tenth fixed plate (84) is installed on the tenth cylinder (88), the tenth cylinder (88) is connected with the first connecting plate (83), the first connecting plate (83) is fixed with the second connecting plate (85), the side of the second connecting plate (85) is connected with the sliding plate (894); the tenth fixed plate (84) is installed on the baffle (82), the baffle (82) is fixed on the detection plate (81), the detection plate (81) is installed on the vertical plate (80).

9. The apparatus for detecting the length of the output shaft of an electric motor according to any one of claims 1 to 8, characterized in that, The detection head (895) and the induction plate (893) are both made of conductive material and are connected with an external controller through signal lines respectively.

10. The output shaft length detection device of an electric motor according to claim 9, wherein The bottom of the conveying movement mechanism (2) and the shaft length detection mechanism (8) are both installed on a workbench.

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