Stopwatch calibrating device

Abstract

The utility model belongs to the technical field of stopwatch detection, and provides a stopwatch calibrating device, which comprises a machine body, an image acquisition device, a turntable, a clamp and a trigger mechanism, a mounting rack is fixedly arranged on the machine body, the image acquisition device is arranged on the mounting rack, and the image acquisition device is a camera; the rotary table is rotationally arranged on the machine body and located below the image acquisition device, and the central axis of the rotary table is transversely arranged; the multiple clamps are arranged on the rotary disc in a surrounding mode. The multiple trigger mechanisms are arranged on the rotary disc and correspond to the clamps one to one, and specifically, the four clamps are evenly distributed on the rotary disc in a surrounding mode. According to the technical scheme, the problem that the efficiency is low due to the fact that multidirectional detection cannot be carried out at the same time in the existing stopwatch verification process is solved.

Description

Technical Field

[0001] This utility model relates to the field of stopwatch testing technology, specifically a stopwatch calibration device. Background Technology

[0002] The timing accuracy of stopwatches needs to be verified during the production, calibration, and quality inspection processes. Traditional stopwatch verification methods rely heavily on manual operation, which is not only inefficient but also prone to introducing errors through manual reading and operation, making it difficult to guarantee the accuracy and consistency of the test results.

[0003] The utility model patent with authorization announcement number CN 209215881 U discloses a fully automatic stopwatch calibration device, including a control unit, a push rod unit, an image acquisition unit, a standard signal unit, a clamping unit, and a printing unit, which solves the problems of low efficiency and easy error caused by manual reading.

[0004] However, the aforementioned calibration device cannot simultaneously test multiple stopwatches from different angles, making it difficult to meet the needs of large-scale production and efficient testing. Therefore, developing a device capable of efficiently and accurately calibrating stopwatches is of significant practical importance. Utility Model Content

[0005] The purpose of this invention is to provide a stopwatch calibration device to solve the problem of low efficiency caused by the inability to perform multi-directional testing simultaneously in the existing stopwatch calibration process.

[0006] This utility model is implemented as follows:

[0007] A stopwatch calibration device, comprising:

[0008] Organism;

[0009] An image acquisition device is disposed on the body;

[0010] A turntable, which is rotatably mounted on the machine body and located below the image acquisition device, with the central axis of the turntable arranged horizontally;

[0011] The clamps are multiple, and the multiple clamps are arranged around the turntable;

[0012] The triggering mechanism comprises multiple triggering mechanisms, all of which are disposed on the turntable and correspond one-to-one with the clamp.

[0013] As a further technical solution, the turntable is rotatably mounted on the machine body via a driving device, the driving device comprising:

[0014] An electric motor, which is fixedly mounted inside the machine body;

[0015] A rotating shaft is rotatably disposed within the machine body, with one end fixedly connected to the output shaft of the motor. A turntable is rotatably disposed on the outer side wall of the machine body. A first through hole is provided on the side wall of the machine body. The other end of the rotating shaft extends out of the first through hole and is fixedly connected to the center of the turntable.

[0016] As a further technical solution, a mounting base is fixedly provided inside the machine body, the motor is fixedly mounted on the mounting base, and the rotating shaft is rotatably connected to the mounting base through a bearing seat.

[0017] As a further technical solution, the clamps are four in number, evenly distributed around the turntable.

[0018] As a further technical solution, a supplementary light is provided below the image acquisition device.

[0019] As a further technical solution, a mounting bracket is fixedly installed on the machine body, the mounting bracket being located above the turntable, and the mounting bracket comprising:

[0020] A connecting part is fixedly disposed on the outer side wall of the top of the body;

[0021] A first support portion, one end of which is perpendicularly connected to the connecting portion, and the image acquisition device is fixedly disposed at the other end of the first support portion;

[0022] The second support part is perpendicularly connected to the connecting part and is located below the first support part. The second support part has a second through hole in the middle and is located below the image acquisition device. The fill light is ring-shaped and fixedly installed at the bottom of the second support part. The central axis of the fill light coincides with the central axis of the second through hole.

[0023] As a further technical solution, the triggering mechanism includes:

[0024] An electromagnet, one end of which is located inside the machine body and the other end extends out of the first through hole and is fixedly mounted on the turntable;

[0025] An actuating head is disposed at the end of the electromagnet near the turntable, and the electromagnet drives the actuating head to extend and retract at one end of the clamp.

[0026] As a further technical solution, the fixture includes:

[0027] Mounting plate, one end of which is fixedly mounted on the turntable, and the other end of which has a sliding groove;

[0028] The first positioning post, there are two first positioning posts, both of which are set at the end of the mounting plate near the turntable;

[0029] A slider, which is slidably disposed in the groove by means of an adjusting screw;

[0030] The second positioning post, there are two of them, both of which are set on the slider.

[0031] As a further technical solution, the mounting plate has multiple adjustment holes on the side near the turntable, each of the first positioning posts corresponds to multiple adjustment holes, and each of the first positioning posts is inserted into any corresponding adjustment hole.

[0032] As a further technical solution, a rotating disk is rotatably mounted on the slider, and the second positioning post is fixedly mounted on the rotating disk.

[0033] The beneficial effects of this utility model are:

[0034] This invention features a simple structure. By incorporating multiple clamps and triggering mechanisms, along with the rotation of a turntable, it can simultaneously verify the horizontal and vertical positions of multiple stopwatches, significantly improving testing efficiency. After testing, the stopwatches are driven by the turntable and clamps, sequentially passing under an image acquisition device. The image acquisition device reads and records their data sequentially, effectively completing automatic testing, reducing manual intervention, and avoiding errors caused by manual identification and judgment. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of the utility model in use;

[0036] Figure 2 This is a three-dimensional structural diagram of the internal structure of the machine body of this utility model;

[0037] Figure 3 yes Figure 2 A magnified structural diagram of part A in the middle.

[0038] Explanation of reference numerals in the attached figures

[0039] 1. Body; 2. Camera; 3. Turntable; 4. Fixture; 41. Mounting plate; 42. First positioning post; 43. Slide groove; 44. Slider; 45. Adjusting screw; 46. Second positioning post; 47. Handle; 48. Adjustment hole; 49. Rotating disk; 5. Triggering mechanism; 51. Electromagnet; 52. Actuating head; 6. Drive device; 61. Motor; 62. Rotating shaft; 7. First through hole; 8. Mounting base; 9. Bearing seat; 10. Mounting bracket; 101. Connecting part; 102. First support part; 103. Second support part; 11. Fill light; 12. Stopwatch; 13. Base plate. Detailed Implementation

[0040] like Figures 1-3 As shown, this utility model provides a stopwatch calibration device, which mainly includes a body 1, an image acquisition device, a turntable 3, a clamp 4, and a triggering mechanism 5.

[0041] A mounting bracket 10 is fixedly installed on the body 1. The mounting bracket 10 includes a connecting part 101, a first support part 102, and a second support part 103. The connecting part 101 is fixedly installed on the outer side wall of the top of the body 1, serving as a connection and support. One end of the first support part 102 is perpendicularly connected to the connecting part 101. The image acquisition device is fixedly installed at the other end of the first support part 102 to ensure stable installation and a suitable installation position for the image acquisition device. In this utility model, the image acquisition device is a camera 2, which can quickly and accurately read the timing data of the stopwatch 12 to achieve automated detection. The second support part 103 is perpendicularly connected to the connecting part 101 and is located below the first support part 102. A second through hole is opened in the middle of the second support part 103, which is located directly below the camera 2. A supplementary light 11 is provided at the bottom of the second support part 103. The supplementary light 11 is ring-shaped, and the central axis of the supplementary light 11 coincides with the central axis of the second through hole. The supplementary light can provide sufficient light during detection to ensure that the camera 2 can clearly read the data of the stopwatch 12. This invention uses a camera 2 as an image acquisition device, combined with a supplementary light 11, to realize the automatic reading of stopwatch 12 data, reducing errors caused by manual reading and improving the accuracy of detection.

[0042] The turntable 3 is rotatably mounted on the outer wall of the body 1 via the drive device 6, and is located below the mounting bracket 10. The central axis of the turntable 3 is arranged horizontally, providing a basis for the repositioning of the stopwatch 12. Specifically, the drive device 6 includes a motor 61 and a rotating shaft 62. A mounting base 8 is fixedly installed inside the body 1 to provide a stable mounting position for the motor 61. The motor 61 is fixedly mounted on the mounting base 8 to provide power for the rotation of the turntable 3. The motor 61 in this utility model is a stepper motor. The rotating shaft 62 is located inside the body 1 and is rotatably connected to the mounting base 8 via a bearing seat 9 to ensure the smooth rotation of the rotating shaft 62. One end of the rotating shaft 62 is fixedly connected to the output shaft of the motor 61. A first through hole 7 is opened on the side wall of the body 1 near the turntable 3. The other end of the rotating shaft 62 extends out of the first through hole 7 and is fixedly connected to the center of the turntable 3, realizing the transmission of power from the motor 61 to the turntable 3.

[0043] Multiple clamps 4 are arranged around the turntable 3 to fix different stopwatches 12. Preferably, there are four clamps 4, evenly distributed on the side of the turntable 3 around the central axis of the turntable 3, that is, adjacent clamps 4 are perpendicular to each other. Specifically, the clamp 4 includes a mounting plate 41, a first positioning post 42, a slider 44, and a second positioning post 46. One end of the mounting plate 41 is fixedly set on the turntable 3, and the other end has a groove 43. There are two first positioning posts 42, each set on the end of the mounting plate 41 near the turntable 3, with a certain distance between the two first positioning posts 42. An adjusting screw 45 is rotatably set in the groove 43 in the horizontal direction. One end of the adjusting screw 45 near the turntable 3 rotatably passes through the inner wall of the groove 43, and the other end extends out from the side wall of the groove 43 and is fixedly connected to the handle 47. Next, the slider 44 is slidably disposed in the slide groove 43. A threaded hole is provided on the slider 44, and an adjusting screw 45 is screwed through the threaded hole. By rotating the adjusting screw 45, the position of the slider 44 in the slide groove 43 is adjusted. A rotating disk 49 is rotatably disposed on the slider 44. Two second positioning posts 46 are fixedly disposed on the rotating disk 49, with a certain distance between them. The space between the two first positioning posts 42 and the two second positioning posts 46 forms a space for placing the stopwatch 12, which is located directly below the camera 2. Multiple adjusting holes 48 are provided on the side of the mounting plate 41 near the turntable 3. Each first positioning post 42 corresponds to multiple adjusting holes 48, and each first positioning post 42 is inserted into any corresponding adjusting hole 48.

[0044] The specific operation process of clamp 4 is as follows: According to the shape of stopwatch 12, insert the first positioning post 42 into the appropriate adjustment hole 48, then turn the handle 47. The handle 47 drives the adjustment screw 45 to rotate, causing the slider 44 to slide in the slide groove 43 to the appropriate position, thus securing the stopwatch 12 between the first positioning post 42 and the second positioning post 46. Align the button to be activated on the stopwatch 12 with the trigger head 52. Then, continue to turn the handle 47, causing the slider 44 to move closer to the stopwatch 12. As the slider 44 moves, the rotating disk 49 rotates at a certain angle, causing the two second positioning posts 46 to adapt to the shape of the stopwatch 12 and engage with the edge of the stopwatch 12. Finally, the two first positioning posts 42 and the two second positioning posts 46 simultaneously lock the stopwatch 12, completing the clamping of the stopwatch 12. The clamping operation of this clamp 4 is simple and has good stability. The various adjustment structures of the clamp 4, such as the adjustment screw 45, the adjustment hole 48, and the rotating disk 49, enable it to adapt to stopwatches 12 of different sizes and shapes, thus enhancing the versatility of the device.

[0045] Multiple triggering mechanisms 5 are installed on the turntable 3 and correspond one-to-one with the clamps 4 to trigger the stopwatch 12. Specifically, the triggering mechanism 5 includes an electromagnet 51 and a trigger head 52. One end of the electromagnet 51 is located inside the body 1, and the other end extends out of the first through hole 7 and is fixedly installed on the turntable 3. The trigger head 52 is located at the end of the electromagnet 51 near the turntable 3. The electromagnet 51 drives the trigger head 52 to extend and retract at the end of the mounting plate 41 near the turntable 3, and the extension and retraction action triggers the stopwatch 12.

[0046] In this invention, a base plate 13 is fixedly installed on one side of the bottom of the body 1. The base plate 13 is located directly below the clamp 4 and, together with the bottom of the body 1, provides support for the device, ensuring its stability and preventing the entire device from tipping over due to excessive weight of the clamp 4. Furthermore, to further ensure the stability of the device, a counterweight can be installed on the floor inside the body 1. Specifically, the counterweight can be installed below the mounting base 8, which helps to enhance the overall weight distribution and ensure the stability of the device.

[0047] The specific operating steps of this utility model are as follows:

[0048] First, fix the stopwatch 12 between the first positioning post 42 and the second positioning post 46 of the clamp 4. After installing one stopwatch 12, rotate the turntable 3 to facilitate the clamping of other stopwatches 12. After all the stopwatches 12 are clamped, rotate the turntable 3 in the opposite direction to rotate the first stopwatch 12 to the top, so that the dial of the first stopwatch 12 is aligned with the camera 2.

[0049] After power is applied, fill light 11 illuminates. Adjust camera 2 to a suitable focal length so that the data on the stopwatch 12 dial can be clearly read.

[0050] It can simultaneously mount four stopwatches 12, with two stopwatches 12 in a horizontal position and two stopwatches 12 in a vertical position. At this time, the first and third stopwatches are in a horizontal position, and the second and fourth stopwatches are in a vertical position.

[0051] The start and stop times of the electromagnet 51's strike are controlled by an electrical signal input from an external calibrator (not shown in the figure).

[0052] After the strike is completed, camera 2 reads and records the data of the first stopwatch (this stopwatch data is horizontal). Then, motor 61 rotates, causing turntable 3 to rotate 90 degrees via shaft 62, so that the second stopwatch rotates to the top. Camera 2 reads and records the data of the second stopwatch (this stopwatch 12 data is vertical). This process is repeated, with turntable 3 rotating to read and record the data of all stopwatches 12, including the horizontal data of two stopwatches 12 (the first and third stopwatches) and the vertical data of two stopwatches 12 (the second and fourth stopwatches).

[0053] Then, by rotating the turntable 3 in the opposite direction, the first and third stopwatches are adjusted to a vertical position, and the second and fourth stopwatches are adjusted to a horizontal position. Then, the electromagnet 51 and the trigger head 52 are used to strike them. After the camera 2 reads and records the data of the second stopwatch, the other three stopwatches 12 are rotated to the top in sequence, and the data is read by the camera 2. At this time, the camera 2 reads the vertical state data of the first and third stopwatches and the horizontal state data of the second and fourth stopwatches. In this way, the striking and data reading of the horizontal and vertical states of all stopwatches 12 are completed.

[0054] By comparing the time set by the external calibrator with the time of the stored stopwatch 12 identified by the image acquisition device, it can be automatically determined whether the stopwatch 12 time is accurate.

[0055] After the inspection is completed, the turntable 3 is reset under the reverse rotation of the motor 61.

Claims

1. A stopwatch calibration device, characterized in that, include: Organism; An image acquisition device is disposed on the body; A turntable, which is rotatably mounted on the machine body and located below the image acquisition device, with the central axis of the turntable arranged horizontally; The clamps are multiple, and the multiple clamps are arranged around the turntable; The triggering mechanism comprises multiple triggering mechanisms, all of which are disposed on the turntable and correspond one-to-one with the clamp.

2. The stopwatch calibration device according to claim 1, characterized in that, The turntable is rotatably mounted on the machine body via a driving device, the driving device comprising: An electric motor, which is fixedly mounted inside the machine body; A rotating shaft is rotatably disposed within the machine body, with one end fixedly connected to the output shaft of the motor. A turntable is rotatably disposed on the outer side wall of the machine body. A first through hole is provided on the side wall of the machine body. The other end of the rotating shaft extends out of the first through hole and is fixedly connected to the center of the turntable.

3. The stopwatch calibration device according to claim 2, characterized in that, A mounting base is fixedly installed inside the machine body, the motor is fixedly installed on the mounting base, and the rotating shaft is rotatably connected to the mounting base through a bearing seat.

4. The stopwatch calibration device according to claim 1, characterized in that, There are four clamps, evenly distributed around the turntable.

5. The stopwatch calibration device according to claim 1, characterized in that, A fill light is provided below the image acquisition device.

6. The stopwatch calibration device according to claim 5, characterized in that, A mounting bracket is fixedly installed on the machine body, the mounting bracket being located above the turntable, and the mounting bracket includes: A connecting part, which is fixedly disposed on the outer side wall of the top of the body; A first support portion, one end of which is perpendicularly connected to the connecting portion, and the image acquisition device is fixedly disposed at the other end of the first support portion; The second support part is perpendicularly connected to the connecting part and is located below the first support part. The second support part has a second through hole in the middle and is located below the image acquisition device. The fill light is ring-shaped and fixedly installed at the bottom of the second support part. The central axis of the fill light coincides with the central axis of the second through hole.

7. The stopwatch calibration device according to claim 2, characterized in that, The triggering mechanism includes: An electromagnet, one end of which is located inside the machine body and the other end extends out of the first through hole and is fixedly mounted on the turntable; An actuating head is disposed at the end of the electromagnet near the turntable, and the electromagnet drives the actuating head to extend and retract at one end of the clamp.

8. The stopwatch calibration device according to claim 1, characterized in that, The clamp includes: Mounting plate, one end of which is fixedly mounted on the turntable, and the other end of which has a sliding groove; The first positioning post, there are two first positioning posts, both of which are set at the end of the mounting plate near the turntable; A slider, which is slidably disposed in the groove by means of an adjusting screw; The second positioning post, there are two of them, both of which are set on the slider.

9. The stopwatch calibration device according to claim 8, characterized in that, The mounting plate has multiple adjustment holes on the side near the turntable. Each first positioning post corresponds to multiple adjustment holes, and each first positioning post is inserted into any corresponding adjustment hole.

10. The stopwatch calibration device according to claim 8, characterized in that, A rotating disk is rotatably mounted on the slider, and the second positioning post is fixedly mounted on the rotating disk.

Images