Automatic tapping equipment for motor shell

Abstract

The invention is suitable for the technical field of machining, and particularly relates to automatic tapping equipment for a motor shell, the automatic tapping equipment for the motor shell comprises a base, a rotary workbench is mounted on the base, a tapping mechanism and an image acquisition device are further mounted on the base, the image acquisition direction of the image acquisition device is perpendicular to the plane where the rotary workbench is located, and the rotary workbench is mounted on the base. An inner clamping control mechanism is arranged on the rotary workbench, and the tapping mechanism conducts automatic tapping treatment on the motor shell according to the machining scheme. The image collecting device is arranged to collect images of the motor shell for multiple times, the model and the placing posture of the motor shell can be automatically recognized, the position of the motor shell is automatically adjusted according to the model and the placing posture of the motor shell, and the motor shell of any size and model can be adjusted to be matched with a machining main shaft for machining; the automation degree is greatly improved, and the machining efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of machining technology, and in particular relates to an automatic tapping device for motor housings. Background Technology

[0002] Automatic tapping of motor housing refers to the process of machining threaded holes on the motor housing using automated equipment.

[0003] Existing motors come in various sizes, resulting in a variety of motor housing sizes. Different processing programs are required for different sized motor housings to achieve one-to-one processing, which leads to low processing efficiency and affects production efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic tapping device for motor housings, which aims to solve the problem that different processing programs are required for one-to-one processing of motor housings of different sizes, resulting in low processing efficiency and affecting production efficiency.

[0005] This invention is implemented as follows: an automatic tapping device for motor housings, comprising a base, a rotary worktable mounted on the base, a tapping mechanism and an image acquisition device mounted on the base, the image acquisition direction of the image acquisition device being perpendicular to the plane of the rotary worktable, and an internal clamping control mechanism provided on the rotary worktable. The image acquisition device is used to identify the model and position of the motor housing through image acquisition, retrieve the corresponding processing scheme according to the model of the motor housing, adjust the position of the motor housing through the internal clamping control mechanism, and the tapping mechanism automatically taps the motor housing according to the processing scheme.

[0006] Preferably, the tapping mechanism includes a side bracket and a machining spindle. The side bracket is fixedly mounted on a base, and a slide block is fixedly mounted on the side bracket. A slide rail is slidably connected to the slide block. The slide rail is driven by a fixed motor mounted on the slide block. A mounting seat is fixedly mounted on the slide rail, and a first telescopic rod is mounted on the mounting seat. The machining spindle is fixedly mounted on the telescopic end of the first telescopic rod.

[0007] Preferably, the internal clamping control mechanism includes a support frame, on which multiple sets of second telescopic rods are rotatably mounted. A connecting ring is fixedly sleeved on each of the second telescopic rods, and a support arm is rotatably connected to the connecting ring. The support frame is a hollow structure, and a screw is rotatably mounted inside the hollow structure. A threaded sleeve is provided on the screw. The end of the support arm away from the second telescopic rod is rotatably connected to the threaded sleeve. A positioning plate is rotatably connected to the end of the second telescopic rod. An adjusting motor is fixedly mounted on the top of the support frame, and the adjusting motor is used to drive the screw to rotate.

[0008] Preferably, the step of identifying the model and location of the motor housing through image acquisition includes: The motor housing is imaged in real time by an image acquisition device, with the motor housing centered in the image. The image acquisition device is then raised to its maximum height to acquire an image, resulting in a first detection image. The shooting height of the image acquisition device is then adjusted, and an image is acquired again to obtain a second detection image. The inner diameter and length of the motor housing are calculated based on the difference between the first and second detection images, thereby determining the required processing position of the motor housing.

[0009] Preferably, in the process of adjusting the position of the motor housing through the internal clamping control mechanism, the adjustment range of the internal clamping control mechanism is determined according to the size of the motor housing. Based on the adjustment range, the motor is controlled to work. The motor drives the screw to rotate, and the screw drives the threaded sleeve to rise and fall. The threaded sleeve drives the second telescopic rod to rotate relative to the support frame through the support arm. When it is necessary to control the movement of the motor housing, the axis position of the motor housing is identified by the image acquisition device, and control commands are sent to each of the second telescopic rods to control the second telescopic rods to extend and retract independently to adjust the position of the motor housing. The rotating worktable drives the motor housing to rotate so that the area to be processed is located below the processing spindle.

[0010] Preferably, the surface of the positioning plate is covered with anti-slip strips, which are arranged in parallel.

[0011] Preferably, the automatic tapping equipment for motor housing is equipped with a robotic arm, which is used to perform the picking and placing of motor housing.

[0012] This invention provides an automatic tapping device for motor housings. By setting up an image acquisition device to acquire multiple images of the motor housing, it can automatically identify the model and placement posture of the motor housing. Based on the model and placement posture, it can automatically adjust the position of the motor housing, enabling adjustment of motor housings of any size and model to cooperate with the machining spindle for processing, greatly improving the degree of automation and processing efficiency. Attached Figure Description

[0013] Figure 1 This is a first-view structural schematic diagram of an automatic tapping device for motor housing provided in an embodiment of the present invention; Figure 2 This is a first-view structural schematic diagram of an automatic tapping device for motor housing provided in an embodiment of the present invention; Figure 3 This is a first-view structural schematic diagram of an automatic tapping device for motor housing provided in an embodiment of the present invention; Figure 4 for Figure 3 A magnified view of a section at point A in the middle; Figure 5 This is a schematic diagram showing the height and dimensions of a computer casing provided in an embodiment of the present invention.

[0014] In the attached diagram: 1. Base; 2. Side support; 3. Adjusting motor; 4. Rotary worktable; 5. Mounting base; 6. Slide block; 7. Slide rail; 8. Machining spindle; 9. First telescopic rod; 10. Support frame; 11. Second telescopic rod; 12. Connecting ring; 13. Support arm; 14. Slider; 15. Positioning plate; 16. Image acquisition device; 17. Support base. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0016] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0017] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, an automatic tapping device for motor housings provided in an embodiment of the present invention includes a base 1, a rotary worktable 4 mounted on the base 1, a tapping mechanism and an image acquisition device 16 mounted on the base 1, the image acquisition direction of the image acquisition device 16 being perpendicular to the plane of the rotary worktable 4, and an internal clamping control mechanism provided on the rotary worktable 4. The image acquisition device 16 is used to identify the model and position of the motor housing through image acquisition, retrieve the corresponding processing scheme according to the model of the motor housing, adjust the position of the motor housing through the internal clamping control mechanism, and the tapping mechanism automatically taps the motor housing according to the processing scheme.

[0018] In this step, a support base 17 is installed on the base 1, and the rotary table 4 is installed on the support base 17. During use, the motor housing is fitted around the inner clamping control mechanism. The image acquisition device 16 is used to acquire images of the motor housing to identify its model. The specific steps are as follows: the tapping mechanism drives the image acquisition device 16 to its highest position, while the inner clamping control mechanism clamps and fixes the motor housing from the inside, aligning the axis of the motor housing with the rotation axis of the rotary table 4; the image acquisition device 16 acquires real-time images of the motor housing, centering the motor housing in the image; the image acquisition device 16 is raised to its maximum height for one image acquisition to obtain the first detection image; then the shooting height of the image acquisition device 16 is adjusted, and another image acquisition is performed. The system acquires a second detection image. Based on the difference between the first and second detection images, it calculates the inner diameter and length of the motor housing, thereby determining the required processing position for the motor housing. The first and second detection images are then processed into line images, resulting in first and second line images. Since the rotating table 4 serves as the background of the images, the outline of the motor housing can be identified based on the two sets of line images, determining the edges of the inner wall of the motor housing, thus obtaining the first and second edges. Because the cross-section of the inner cavity of the motor housing is circular, both the first and second edges are circular. A two-dimensional coordinate system is constructed, with the horizontal axis located in the plane of the rotating table 4 and the vertical axis coinciding with the rotation axis of the rotating table 4. The two image acquisition positions of the image acquisition device 16 are marked on the vertical axis, which is the... Figure 5 Points A and B in the image are known because the distance between the image acquisition device 16 and the rotating stage 4 is known. Therefore, when image acquisition is performed at point A, the edge of the first detection image is located at point D, and the radius of the first edge is OE. Point E is the edge of the motor housing in the first detection image. Similarly, when image acquisition is performed at point B, the edge of the second detection image is located at point C, and the radius of the second edge is OF. Point F is the edge of the motor housing in the second detection image. Since the resolution of the first and second detection images is the same, and both the first and second detection images are circular images, the number of pixels M on the diameter of the first and second detection images is the same. Since OC and OD are known values, the actual length represented by each pixel in the first detection image is L. OD / M,L OD Let L be the length of OD. Then, the actual length of OE is determined based on the number of pixels corresponding to OE in the first detection image, thus obtaining the coordinates of point E. Similarly, in the second detection image, the actual length represented by each pixel is L. OC / M,L OCThe length of OC is determined by the number of pixels corresponding to OF in the second detection image, thus obtaining the coordinates of point F. After determining the coordinates of points A, B, C, and D, a function is constructed for the straight line containing line AE, which is the first function. At the same time, the second function corresponding to the straight line BF is determined. The intersection of the first and second functions is calculated. Perpendiculars are drawn from this intersection to the horizontal and vertical axes. The vertical distance between the intersection and the horizontal axis is the length of the motor housing, and the vertical distance between the intersection and the vertical axis is the radius of the inner diameter of the motor housing. Based on the radius, contour shape, and length of the motor housing, a preset motor housing database is queried. The motor housing model and corresponding processing scheme are recorded in the motor housing database. The position of the motor housing can be adjusted and offset by rotating the worktable 4 and the internal clamping control mechanism, thereby moving it below the processing spindle 8 for processing. To facilitate processing, a robotic arm can be configured for this equipment. By installing a clamp on the robotic arm, the motor housing can be picked up, placed, and flipped.

[0019] like Figure 1 , Figure 2 , Figure 3 and Figure 4 In a preferred embodiment of the present invention, the tapping mechanism includes a side bracket 2 and a machining spindle 8. The side bracket 2 is fixedly mounted on the base 1. A slide block 6 is fixedly mounted on the side bracket 2. A slide rail 7 is slidably connected to the slide block 6. The slide rail 7 is driven by a fixed motor mounted on the slide block 6. A mounting seat 5 is fixedly mounted on the slide rail 7. A first telescopic rod 9 is mounted on the mounting seat 5. The machining spindle 8 is fixedly mounted on the telescopic end of the first telescopic rod 9.

[0020] In this embodiment, during processing, by controlling the slide block 6 to move relative to the slide rail 7, the relative position between the slide rail 7 and the slide block 6 can be changed, thereby driving the machining spindle 8 to move in a straight line on the horizontal plane. The projection of the movement trajectory of the machining spindle 8 on the rotary table 4 passes through the axis of the rotary table 4. The position is adjusted by the internal clamping control mechanism and the drive motor housing of the rotary table 4, thereby adjusting the processing position to the movement trajectory of the machining spindle 8. The first telescopic rod 9 is used to drive the machining spindle 8 to rise and fall to complete the tapping operation. Drilling operation can be achieved by changing the drill bit on the machining spindle 8.

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4In a preferred embodiment of the present invention, the internal clamping control mechanism includes a support frame 10, on which multiple sets of second telescopic rods 11 are rotatably mounted. A connecting ring 12 is fixedly sleeved on each of the second telescopic rods 11, and a support arm 13 is rotatably connected to the connecting ring 12. The support frame 10 is a hollow structure, and a screw is rotatably mounted inside the hollow structure. A threaded sleeve is provided on the screw. The end of the support arm 13 away from the second telescopic rod 11 is rotatably connected to the threaded sleeve. A positioning plate 15 is rotatably connected to the end of the second telescopic rod 11. An adjusting motor 3 is fixedly mounted on the top of the support frame 10, and the adjusting motor 3 is used to drive the screw to rotate. In this embodiment, the process of adjusting the position of the motor housing through the internal clamping control mechanism involves determining the adjustment range of the internal clamping control mechanism based on the size of the motor housing. The adjustment motor 3 is then controlled to operate within this range. The adjustment motor 3 drives the screw to rotate, which in turn drives the threaded sleeve to rise and fall. The threaded sleeve, via the support arm 13, drives the second telescopic rod 11 to rotate relative to the support frame 10. When it is necessary to control the movement of the motor housing, the image acquisition device 16 identifies the axial position of the motor housing and sends control commands to each of the second telescopic rods 11, controlling the second telescopic rods 11 to extend and retract independently to adjust the position of the motor housing. The rotating worktable 4 drives the motor housing to rotate, ensuring that the area to be processed is located below the machining spindle 8. When the second telescopic rod 11 swings relative to the support frame 10, the minimum radius of the positioning plate 15 is limited. By changing the extension and retraction length of the second telescopic rod 11, any one of the positioning plates 15 can be adjusted. The distance between the support frame 10 and the motor housing can be shifted by simultaneously changing the positions of the three sets of positioning plates 15. When it is necessary to move the machining position to below the machining spindle 8, the position of the machining spindle 8 is determined according to the relative position between the slide rail 7 and the slide block 6, thereby determining the distance L1 between the machining spindle 8 and the axis of the rotary table 4. By synchronously adjusting the position of the positioning plates 15, the position of the motor housing on the rotary table 4 is adjusted, thereby shifting the motor housing so that the distance between the machining position and the rotation axis of the rotary table 4 is also L1, thereby controlling the rotation of the rotary table 4 and moving the machining position to below the machining spindle 8.

[0022] In this embodiment, the surface of the positioning plate 15 is covered with anti-slip strips, which are arranged in parallel.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic tapping device for motor housings, characterized in that, The automatic tapping equipment for motor housing includes a base (1), a rotary worktable (4) is installed on the base (1), and a tapping mechanism and an image acquisition device (16) are also installed on the base (1). The image acquisition direction of the image acquisition device (16) is perpendicular to the plane where the rotary worktable (4) is located. An internal clamping control mechanism is provided on the rotary worktable (4). The image acquisition device (16) is used to identify the model and position of the motor housing through image acquisition, retrieve the corresponding processing scheme according to the model of the motor housing, adjust the position of the motor housing through the internal clamping control mechanism, and the tapping mechanism performs automatic tapping processing on the motor housing according to the processing scheme.

2. The automatic tapping equipment for motor housings according to claim 1, characterized in that, The tapping mechanism includes a side bracket (2) and a machining spindle (8). The side bracket (2) is fixedly installed on the base (1). A slide block (6) is fixedly installed on the side bracket (2). A slide rail (7) is slidably connected to the slide block (6). The slide rail (7) is driven by a fixed motor installed on the slide block (6). A mounting seat (5) is fixedly installed on the slide rail (7). A first telescopic rod (9) is installed on the mounting seat (5). The machining spindle (8) is fixedly installed at the telescopic end of the first telescopic rod (9).

3. The automatic tapping equipment for motor housings according to claim 1, characterized in that, The internal clamping control mechanism includes a support frame (10), on which multiple sets of second telescopic rods (11) are rotatably mounted. A connecting ring (12) is fixedly sleeved on the second telescopic rod (11), and a support arm (13) is rotatably connected to the connecting ring (12). The support frame (10) is a hollow structure, and a screw is rotatably mounted inside the hollow structure. A threaded sleeve is provided on the screw. The end of the support arm (13) away from the second telescopic rod (11) is rotatably connected to the threaded sleeve. A positioning plate (15) is rotatably connected to the end of the second telescopic rod (11). An adjusting motor (3) is fixedly mounted on the top of the support frame (10), and the adjusting motor (3) is used to drive the screw to rotate.

4. The automatic tapping equipment for motor housings according to claim 1, characterized in that, The steps for identifying the model and location of the motor housing through image acquisition include: The motor housing is imaged in real time by the image acquisition device (16) so that the motor housing is centered in the image. The image acquisition device (16) is raised to its maximum height to acquire an image once to obtain the first detection image. Then the shooting height of the image acquisition device (16) is adjusted and the image is acquired again to obtain the second detection image. The inner diameter and length of the motor housing are calculated based on the difference between the first detection image and the second detection image, and the required processing position of the motor housing is determined accordingly.

5. The automatic tapping equipment for motor housings according to claim 3, characterized in that, The process of adjusting the position of the motor housing through the internal clamping control mechanism involves determining the adjustment range of the internal clamping control mechanism based on the size of the motor housing, controlling the operation of the adjustment motor (3) based on this adjustment range, driving the screw to rotate through the adjustment motor (3), driving the threaded sleeve to rise and fall, and driving the second telescopic rod (11) to rotate relative to the support frame (10) through the support arm (13). When it is necessary to control the movement of the motor housing, the image acquisition device (16) identifies the axis position of the motor housing and sends control commands to each of the second telescopic rods (11) to control the second telescopic rods (11) to extend and retract independently in order to adjust the position of the motor housing. The rotating worktable (4) drives the motor housing to rotate so that the area to be processed is located below the processing spindle (8).

6. The automatic tapping equipment for motor housings according to claim 3, characterized in that, The surface of the positioning plate (15) is covered with anti-slip strips, which are arranged in parallel.

7. The automatic tapping equipment for motor housings according to claim 1, characterized in that, The automatic tapping equipment for motor housings is equipped with a robotic arm, which is used to perform the picking and placing of motor housings.

Images