Cover plate detection device

Abstract

The utility model discloses a cover plate detection device, which comprises a mounting frame, a lifting mechanism and a detection device body, the lifting mechanism comprises a driving part and a pressing seat, the driving part is used for driving the pressing seat to do lifting motion along the vertical direction, and the detection device body comprises a pre-pressing mechanism and a detection mechanism. The detection mechanism comprises a first detection mechanism and a second detection mechanism which are arranged above the two ends of a workpiece, the pre-pressing mechanism is used for pre-pressing the floating workpiece, and the detection mechanism judges whether the workpiece is assembled in place or not according to the compression distance detected by the first detection mechanism and the compression distance detected by the second detection mechanism. The device is simple in structure, good in detection effect, capable of achieving automatic detection of a production line and high in production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of detection devices, in particular to a cover plate detection device. Background Art

[0002] In some cases, the assembly quality inspection still relies on manual visual inspection, which is not only inefficient but also has the problems of strong subjectivity and easy errors. For example, Figure 6 as shown, the cover plate workpiece 6 is assembled on the motor product. After assembly, it is necessary to detect whether the cover plate workpiece 6 is successfully assembled on the motor product. When it is not successfully assembled, the cover plate workpiece 6 cannot be fully embedded in the product. However, due to the small size of the workpiece, the appearance of the unassembled state is not significantly different from that of the correctly assembled state, and manual inspection requires careful discrimination. Moreover, even when the assembly is correct, there may be a situation where the cover plate workpiece 6 is floating and not fully embedded in the product although the assembly position is correct. Manual judgment is extremely prone to errors and is inefficient. Summary of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a cover plate detection device, which has a simple structure, good detection effect, can realize automatic detection on the production line, and has high production efficiency.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] An embodiment of the utility model provides a cover plate detection device, including:

[0006] A mounting frame;

[0007] A lifting mechanism, arranged on the mounting frame, the lifting mechanism includes a driving part and a pressing seat, and the driving part is used to drive the pressing seat to move up and down in the vertical direction;

[0008] A detection device body, including a pre-pressing mechanism fixed on the pressing seat and a detection mechanism fixed on the pressing seat. The detection mechanism includes a first detection mechanism and a second detection mechanism arranged above the two ends of the workpiece. The pre-pressing mechanism is used to pre-press the floating workpiece, and both the first detection mechanism and the second detection mechanism are used to detect the compression distance of the workpiece. The detection mechanism judges whether the workpiece is assembled in place according to the compression distance detected by the first detection mechanism and the compression distance detected by the second detection mechanism.

[0009] According to some embodiments of the utility model, there are at least two pre-pressing mechanisms, and the two pre-pressing mechanisms are respectively a first pre-pressing mechanism and a second pre-pressing mechanism arranged on the pressing seat above the two ends of the workpiece.

[0010] According to some embodiments of the present utility model, the distribution directions of the first detection mechanism and the second detection mechanism on the horizontal plane form an angle greater than 0° with the distribution directions of the first preloading mechanism and the second preloading mechanism on the horizontal plane.

[0011] According to some embodiments of the present utility model, the preloading mechanism includes a preloading main body fixed on the lower pressing seat and a preloading end connected to the preloading main body. After the preloading end contacts and is pressed by the workpiece, it can expand and contract.

[0012] According to some embodiments of the present utility model, the preloading mechanism is an oil buffer.

[0013] According to some embodiments of the present utility model, the detection mechanism includes a detection main body fixed on the lower pressing seat and a detection end connected to the detection main body. The detection end detects the distance of the workpiece by contacting and being pressed by the workpiece.

[0014] According to some embodiments of the present utility model, the detection mechanism is a displacement sensor.

[0015] According to some embodiments of the present utility model, it further includes a guiding mechanism arranged on the lifting mechanism. The guiding mechanism includes a guiding seat connected to the lower pressing seat and a guiding part slidably connected to the driving part. The guiding mechanism is used to guide the lower pressing seat to move up and down in the vertical direction.

[0016] According to some embodiments of the present utility model, it further includes a limiting structure arranged on the lower pressing seat. The limiting structure is used to limit the distance that the lower pressing seat moves downward.

[0017] According to some embodiments of the present utility model, the limiting structure includes limiting blocks arranged on both sides of the lower pressing seat. When the lower pressing seat moves downward by a preset distance, the limiting blocks abut against the tooling on which the workpiece is placed.

[0018] The present utility model has at least the following beneficial effects:

[0019] The lifting mechanism can lower and detect when the workpiece arrives, and rise after the detection is completed. It is automated and can adapt to workpieces of different heights. The preloading mechanism applies a certain pressure to the product before detection, further assembles the floating workpiece, and also ensures the stability and consistency of the product during the detection process. The detection mechanism detects whether the workpiece is assembled by the compression distance difference on both sides of the workpiece. The structure is simple and there is no misjudgment, and the detection effect is good. It can realize automatic detection on the production line and has high production efficiency. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0021] Figure 2 Side view of an embodiment of the present utility model;

[0022] Figure 3 along Figure 2 Cross-sectional view taken along line A-A of;

[0023] Figure 4 Side view of the preloading process of an embodiment of the present utility model;

[0024] Figure 5 Side view of the detection process of an embodiment of the present utility model;

[0025] Figure 6 Side view of the limiting process of an embodiment of the present utility model;

[0026] Figure 7 Schematic structural diagram of the driving part and the guiding mechanism of an embodiment of the present utility model. Detailed implementation manners

[0027] The present utility model provides the following description with reference to the drawings to help a comprehensive understanding of various embodiments of the present utility model as defined by the claims and their equivalents. The description includes various specific details to facilitate understanding, but these details should be regarded as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the present utility model.

[0028] In the description of the present utility model, the orientation description is involved. For example, the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present utility model.

[0029] It should be understood that when an element (for example, the first element) is "connected" to another element (for example, the second element), the element can be directly connected to the other element, or there can be an intermediate element (for example, the third element) between the element and the other element.

[0030] An embodiment of the present utility model provides a cover plate detection device, as Figures 1-7 shown, including:

[0031] Mounting frame 1;

[0032] Lifting mechanism 2, arranged on the mounting frame 1, the lifting mechanism 2 includes a driving part 210 and a pressing seat 220, and the driving part 210 is used to drive the pressing seat 220 to perform lifting movement along the vertical direction;

[0033] The detection device body 3 includes a pre-pressing mechanism 310 fixed on the lower pressure seat 220 and a detection mechanism 320 fixed on the lower pressure seat 220. The detection mechanism 320 includes a first detection mechanism 321 and a second detection mechanism 322 arranged above the two end positions of the workpiece. The pre-pressing mechanism 310 is used to pre-press the floating workpiece. The first detection mechanism 321 and the second detection mechanism 322 are both used to detect the compression distance of the workpiece. The detection mechanism 320 determines whether the workpiece is assembled in place based on the compression distance detected by the first detection mechanism 321 and the compression distance detected by the second detection mechanism 322.

[0034] The mounting frame 1 of the utility model is mainly used to connect and support the entire detection device, so that the lifting mechanism 2 can be installed on the mounting frame 1. The lifting mechanism 2 can be installed vertically above the workpiece 6 for lifting movement, or it can be arranged on the side of the mounting frame 1 relative to the workpiece 6 for lifting movement, so that it is convenient to adjust the lifting mechanism 2 to adapt to the detection of workpieces of other different heights. The lifting mechanism 2 includes a driving part 210 and a lower pressure seat 220. The driving part 210 can be driven by hydraulic drive, pneumatic drive or screw drive. The lower pressure seat 220 can be fixed to the driving part 210 by threaded fastening, welding fixation, etc. The pre-pressing mechanism 310 and the detection mechanism 320 are arranged on the lower pressure seat 220, so that when the driving part 210 drives the lower pressure seat 220, the pre-pressing mechanism 310 and the detection mechanism 320 can simultaneously perform lifting movement relative to the position of the workpiece 6, and the pre-pressing mechanism 310 is used to further The step of pressing down assembly can be specifically a pre-pressing mechanism 310 pressing down at the center force point, or multiple pre-pressing mechanisms 310 can be dispersed at the required force points to press down, which can adapt to workpieces of different shapes. The pre-pressing mechanism can prevent the floating workpiece 6 that is correctly installed but not fully installed from being misjudged by the detection mechanism 320. There are at least two detection mechanisms 320, which are arranged above the positions of the two ends of the workpiece 6 according to the shape of the workpiece 6. The unassembled workpiece 6 will be tilted during the pressing period. Therefore, when the two ends of the workpiece 6 are contacted by a detection mechanism 321 and a second detection mechanism 322, there will be a difference in the compression distance. The detection mechanism 320 determines whether the workpiece is assembled in place based on the compression distance detected by the first detection mechanism 321 and the compression distance detected by the second detection mechanism 322. The device has a simple structure, good detection effect, and high space utilization. It can realize automatic side-by-side detection of multiple detection equipment on the production line, and has high production efficiency.

[0035] In some embodiments, as shown in FIGS. 1-3 , there are at least two pre-pressing mechanisms 310 , which are respectively a first pre-pressing mechanism 311 and a second pre-pressing mechanism 312 arranged on the lower press seat 220 above the two end positions of the workpiece.

[0036] The preloading mechanism 310 is based on Figure 3The shape setting of the workpiece 6 shown. Having more than two settings can reduce the occasional warping during preloading by a preloading mechanism 310, facilitating more stable downward pressing and assembling of the workpiece 6.

[0037] Furthermore, as Figure 3 shown, the distribution directions of the first detection mechanism 321 and the second detection mechanism 322 on the horizontal plane form an angle greater than 0° with the distribution directions of the first preloading mechanism 311 and the second preloading mechanism 312 on the horizontal plane.

[0038] The first preloading mechanism 311, the second preloading mechanism 312, the first detection mechanism 321, and the first detection mechanism 321 are all arranged at both ends of the workpiece 6, facilitating better preloading and detection of the workpiece 6. The distribution directions of the two on the horizontal plane form an angle, which saves space more than collinear or disordered settings without causing interference and also makes the downward pressure better.

[0039] In some embodiments, as shown in FIGS. 2 - 6, the preloading mechanism 310 includes a preloading main body 313 fixed on the downward pressing seat 220 and a preloading end 314 connected to the preloading main body 313. The preloading end 314 can expand and contract after being in contact with and pressed by the workpiece.

[0040] In practice, the preloading main body 313 is fixed on the downward pressing seat 220 by threads. The distance between the preloading mechanism 310 and the workpiece 6 can be adjusted according to the threads. It can also be fixedly connected by means such as welding or fixing with a limit block 510. When the driving part 210 descends, it drives the preloading mechanism on the downward pressing seat 220 to descend. When the preloading end 314 on the preloading mechanism contacts the workpiece 6, while pressing downward, the preloading end 314 contracts towards the preloading main body 313, facilitating the subsequent follow-up detection by the detection structure 320. After the detection is completed, it resumes to extend as the driving part 210 rises, facilitating the automatic preloading of the next workpiece 6.

[0041] Furthermore, the preloading mechanism 310 is an oil buffer, which facilitates preloading the workpiece 6 without damaging the workpiece 6.

[0042] In some embodiments, as shown in FIGS. 2 - 6, the detection mechanism 320 includes a detection main body 323 fixed on the downward pressing seat 220 and a detection end 324 connected to the detection main body 323. The detection end 324 detects the distance of the workpiece by being in contact with and pressed by the workpiece.

[0043] In practice, the detection body 323 is fixed to the lower pressing seat 220 by threads, and the distance between the detection mechanism 320 and the workpiece 6 can be adjusted according to the threads. It can also be fixed to the lower pressing seat 220 by means such as welding or fixing with a limit block 510. When the driving part 210 descends, it drives the detection structure on the lower pressing seat 220 to descend. When the detection end 324 on the detection structure contacts the workpiece 6, the detection end 324 contracts towards the detection body 323, which is convenient for analyzing whether the workpiece 6 is assembled by the compression distances between the first detection mechanism 321 and the second detection mechanism 322 and the workpiece 6 respectively. Specifically, the assembly situation is judged by determining whether the compression distance is within the preset detection interval value. When the compression distance values detected by the first detection mechanism 321 and the second detection mechanism 322 respectively fall within the set detection interval values, the workpiece 6 is assembled correctly. The two detection interval values can be the same or different. At the same time, a display screen can also be configured on one side to display the detection values, which is convenient for observing the change of data. After the detection is completed, the detection mechanism 320 returns to its extended state as the driving part 210 rises, which is convenient for the automatic detection of the next workpiece 6.

[0044] Furthermore, the detection mechanism 320 is a displacement sensor, and the displacement sensor can be a magnetostrictive displacement sensor. It accurately detects the absolute position of the moving magnetic ring through the internal non-contact measurement and control technology to measure the actual displacement value of the detected product, which is convenient for the detection mechanism 320 to automatically process the detection information after obtaining the compression distance and is convenient for connecting the subsequent defective product processing program.

[0045] In some embodiments, as Figures 1-7 shown, a cover plate detection device further includes a guiding mechanism 4 provided on the lifting mechanism 2. The guiding mechanism 4 includes a guiding seat 410 connected to the lower pressing seat 220 and a guiding part 420 slidably connected to the driving part 210. The guiding mechanism 4 is used to guide the lower pressing seat 220 to move up and down in the vertical direction.

[0046] The guiding mechanism 4 can be structures such as a guide rail and a slider, which is convenient for the stable movement of the lifting mechanism 2 in the moving direction. The guiding seat 410 is connected to the lower pressing seat 220, which is convenient for the preloading mechanism 310 and the detection mechanism 320 fixed on the lower pressing seat 220 to move up and down more stably under the sliding connection with the driving guiding part 420, preventing tilting or shaking.

[0047] In some embodiments, as Figures 1-6 shown, a cover plate detection device further includes a limiting structure 5 provided on the lower pressing seat 220. The limiting structure 5 is used to limit the distance that the lower pressing seat 220 moves downward.

[0048] When the lifting mechanism 2 is lifted or lowered, it will generate a certain amount of jitter, which may have a certain impact on the detection process. The limit structure 5 can ensure the stability of the starting detection position. At the same time, the limit structure 5 can prevent the detection mechanism 320 from damaging the workpiece 6 due to excessive downward movement during the detection process.

[0049] Further, the limit structure 5 includes limit blocks 510 provided on both sides of the lower pressing seat 220. After the lower pressing seat 220 moves downward by a preset distance, the limit blocks 510 abut against the tooling on which the workpiece is placed.

[0050] The limit blocks 510 provided on both sides of the lower pressing seat 220 facilitate abutting directly against the tooling for placing the workpiece 6 below after reaching a certain distance during the downward movement, supporting the lower pressing seat 220, enabling stable detection while effectively protecting the workpiece 6, preventing jitter from affecting the detection accuracy, and preventing the lifting mechanism from damaging the workpiece 6 when pressing downward after reaching the limit position.

[0051] The terms and words used in the above description and claims are not limited to their literal meanings, but are used by the applicant to enable a clear and consistent understanding of the present utility model. Therefore, those skilled in the art should clearly understand that the above description of various embodiments of the present utility model is provided for illustration purposes only and not for limiting the present utility model as defined by the appended claims and their equivalents.

Claims

1. A cover plate detection device, characterized in that, Comprising: Mounting bracket (1); Lifting mechanism (2), arranged on the mounting bracket (1), the lifting mechanism (2) includes a driving part (210) and a pressing seat (220), and the driving part (210) is used to drive the pressing seat (220) to move up and down in the vertical direction; Detection device body (3), including a preloading mechanism (310) fixed on the pressing seat (220) and a detection mechanism (320) fixed on the pressing seat (220), the detection mechanism (320) includes a first detection mechanism (321) and a second detection mechanism (322) arranged above the two ends of the workpiece, the preloading mechanism (310) is used to preload the floating workpiece, both the first detection mechanism (321) and the second detection mechanism (322) are used to detect the compression distance of the workpiece, and the detection mechanism (320) judges whether the workpiece is assembled in place according to the compression distance detected by the first detection mechanism (321) and the compression distance detected by the second detection mechanism (322).

2. The cover plate detection device according to claim 1, wherein: There are at least two preloading mechanisms (310), and the two preloading mechanisms (310) are respectively a first preloading mechanism (311) and a second preloading mechanism (312) arranged on the pressing seat (220) above the two ends of the workpiece.

3. The cover plate detection device according to claim 2, wherein: The distribution direction of the first detection mechanism (321) and the second detection mechanism (322) on the horizontal plane forms an angle greater than 0° with the distribution direction of the first preloading mechanism (311) and the second preloading mechanism (312) on the horizontal plane.

4. A cover plate detection device according to any one of claims 1-3, characterized in that: The preloading mechanism (310) includes a preloading main body (313) fixed on the pressing seat (220) and a preloading end (314) connected to the preloading main body (313), and the preloading end (314) can expand and contract after being in contact with and pressed by the workpiece.

5. The cover plate detection device according to claim 4, wherein: The preloading mechanism (310) is an oil buffer.

6. A cover plate detection device according to any one of claims 1-3, characterized in that: The detection mechanism (320) includes a detection main body (323) fixed on the pressing seat (220) and a detection end (324) connected to the detection main body (323), and the detection end (324) detects the distance of the workpiece by being in contact with and pressed by the workpiece.

7. The cover plate detection device according to claim 6, characterized in that: The first detection mechanism (321) and the second detection mechanism (322) are displacement sensors.

8. The cover plate detection device according to claim 1, characterized in that, Further comprising: A guiding mechanism (4) arranged on the lifting mechanism (2), the guiding mechanism (4) includes a guiding seat (410) connected to the pressing seat (220) and a guiding part (420) slidably connected to the driving part (210), and the guiding mechanism (4) is used to guide the pressing seat (220) to move up and down in the vertical direction.

9. The cover plate detection device according to claim 1, characterized in that, Further comprising: A limiting structure (5) arranged on the pressing seat (220), and the limiting structure (5) is used to limit the downward movement distance of the pressing seat (220).

10. A cover plate detection device according to claim 9, characterized in that: The limiting structure (5) includes limiting blocks (510) arranged on both sides of the pressing seat (220), and when the pressing seat (220) moves downward by a preset distance, the limiting blocks (510) abut against the tooling on which the workpiece is placed.

Images