Timer power-on detection method and detection device

Abstract

The invention discloses a timer power-on detection device which comprises a circulation line, and the circulation line is provided with a screwing unit used for screwing a timer, a plug-in unit used for detecting whether the timer is powered on or not and a circulation box where the timer is placed. The screwing unit comprises a pressing mechanism used for positioning and pressing the timer in the circulation box, a plurality of sets of screwing mechanisms used for screwing the timer and a lifting device used for driving the screwing mechanisms to move up and down to be matched with the timer. According to the timer power-on detection method and detection device provided by the invention, screwing and power-on detection work is automatically completed on the timer positioned and placed in the circulation box through automatic equipment, so that the condition of missing detection is avoided, the detection accuracy is improved, meanwhile, the labor intensity of operators is reduced, and the detection efficiency of the timer is improved.

Description

Technical Field

[0001] This invention relates to the field of timer detection technology, and in particular to a method and device for detecting the power-on status of a timer. Background Technology

[0002] A timer is a device used to keep a circuit open for a specified time. It is set by turning a knob, and the circuit is in a closed state within the set time. It has been widely used in many fields such as industrial automation, home appliances, smart devices, and medical instruments.

[0003] For example, patent CN110697412A discloses an automated detection method for timers. This method requires the use of a rotating disc. After the detection is completed, all timers need to be removed and then placed back. However, in actual manual detection, timers are often detected before leaving the factory. The timers are placed in ordinary packaging boxes, and the operators take them out one by one for detection and then put them back in their original positions. After all the detections are completed, they are packaged. Therefore, there is a need for a device and method that can achieve automatic detection using ordinary packaging boxes. Summary of the Invention

[0004] This invention addresses the shortcomings of existing technologies by providing a timer power-on detection method and device. An automatic screw-on unit screws the timer in place, then a transfer line moves the timer to the power-on station. The power-on component descends to perform a power-on detection on the screwed-in timer.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a timer power-on detection device, comprising a conveyor line, wherein the conveyor line is configured with a screwing unit for screwing the timer, a plug-in unit for detecting whether the timer is powered on, and a conveyor box containing the timer. The screwing unit includes a clamping mechanism for positioning and clamping the timer in the conveyor box, multiple sets of screwing mechanisms for screwing the timer, and a lifting device for driving the screwing mechanism to move up and down in coordination with the timer. The screwing mechanism includes a screwing component and a driving component for driving the screwing component to rotate. The lifting device drives the screwing component to descend and connect with the rotating shaft on the timer clamped by the clamping mechanism. The driving component drives the screwing component to rotate, thereby screwing the timer. The plug-in unit detects the power-on of the timer after the screwing mechanism has completed screwing.

[0006] Its beneficial effects are that, through automated equipment, the timer in the transfer box can be automatically turned and powered on, thereby avoiding missed detections, improving the accuracy of detection, reducing the labor intensity of operators, and improving the detection efficiency of the timer.

[0007] In the above scheme, preferably, the screwing unit further includes a first sliding plate, the screwing component is rotatably disposed on the first sliding plate, and the screwing component is provided with a gear, the driving component is guided and slidably disposed on the first sliding plate, and the driving component is a rack and pinion, the driving component is meshed with the gear, and the movement of the driving component drives the screwing component to rotate.

[0008] In the above scheme, preferably, the first sliding plate is evenly configured with multiple sets of rotating mechanisms, the driving components on the same column are connected to each other by adjusting components, and the rotating component is configured with a rotating sleeve adapted to the rotating shaft on the timer. The adjusting component is used to make the rotating sleeves before and after the initial position at the same angle.

[0009] In the above scheme, preferably, multiple timers are evenly placed inside the transfer box, and the distance between two screwing parts in the same column is twice that between two adjacent timers inside the transfer box.

[0010] In the above scheme, preferably, the screwing unit further includes a first lifting plate that is slidably arranged on the transfer line. The first sliding plate is slidably arranged on the first lifting plate and is driven to move back and forth by a first telescopic member. The moving distance is the distance between two adjacent timers in the transfer box.

[0011] In the above scheme, preferably, the first lifting plate is provided with a sliding groove to provide clearance for the rotating sleeve to move back and forth.

[0012] In the above scheme, preferably, the plug-in unit includes a plug-in component and a third lifting plate. The plug-in component is equipped with a plug-in port that is compatible with the guide plate on the timer. The plug-in component is disposed on the third lifting plate to drive the plug-in component to connect with the guide plate on the timer.

[0013] In the above scheme, preferably, the plug-in unit is also equipped with a clamping mechanism, which is used to lock and clamp the timer in the transfer box. After clamping, the plug-in component is then tested for plugging in.

[0014] In the above scheme, preferably, the pressing unit includes a second lifting plate disposed on the transfer line for moving up and down relative to the transfer line. The second lifting plate is provided with the same number of pressing heads as the timer in the transfer box. When pressing, the pressing heads avoid the guide plate and the rotating shaft on the timer.

[0015] Power-on detection method using a timer-based power-on detection device: S1: The robotic arm or a person places the transfer box on the transfer line. The transfer line then moves the box into the screwing station, where the positioning device clamps it in place, and the transfer line stops moving.

[0016] S2: The clamping mechanism clamps the timer in the transfer box, and the screwing mechanism screws the timer in the transfer box in batches. The clamping mechanism is always in a clamping state.

[0017] S3: After all the screwing is completed, the clamping mechanism and the screwing mechanism return to their initial positions, the positioning device releases the transfer box, and the transfer line begins to move, moving the transfer box to the power-on station.

[0018] S4: Inside the power-on station, the positioning device clamps the transfer box, the transfer line stops moving, the clamping mechanism clamps the timer inside the transfer box, and the power-on unit descends to simultaneously power on all the timers inside the transfer box for testing. Any timers that fail are recorded.

[0019] The beneficial effects of the present invention are as follows: The present invention provides a timer power-on detection method and detection device. Through automated equipment, the timer placed in the transfer box is automatically rotated and powered on, thereby avoiding missed detection, improving the accuracy of detection, reducing the labor intensity of operators, and improving the detection efficiency of the timer. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the present invention.

[0021] Figure 2 This is a cross-sectional view of the present invention.

[0022] Figure 3 This is a schematic diagram of the screwing unit of the present invention.

[0023] Figure 4 This is a schematic diagram of the internal structure of the screwing unit of the present invention.

[0024] Figure 5 This is a schematic diagram of the plug-in unit of the present invention.

[0025] Figure 6 This is a schematic diagram of the insertion of the plug-in unit of the present invention.

[0026] Figure 7 This is a partially enlarged view of the connection between the plug-in component and the timer in this invention.

[0027] Figure 8 This is a schematic diagram of the transfer box of the present invention. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Example 1:

[0029] See Figures 1-8A method and device for detecting the power-on status of a timer are disclosed. The detection device includes a conveyor line 1, a screwing unit 2, a plugging unit 3, and a transfer box 4. The conveyor line 1 is a production line. The screwing unit 2 and the plugging unit 3 are both fixedly configured on the frame of the conveyor line 1. The transfer box 4 is a partition box for placing the timer. The interior is evenly divided into a series of frames for positioning and placing the timer. The timer is positioned and placed in the frames. The transfer box 4 is placed on the conveyor line 1 by a robotic arm or manually and is moved by the conveyor line 1.

[0030] The transfer line 1 is equipped with a positioning device, which includes a photoelectric sensor and left and right clamping devices. When the transfer box 4 enters the screwing unit 2 and reaches the set position, the photoelectric sensor recognizes the photoelectric signal of the transfer box 4 entering, and then the control unit controls the clamping device to clamp the transfer box 4 left and right, and at the same time, the transfer line 1 stops running, so that the screwing unit 2 or the plug-in unit 3 can operate the timer in the lower positioning and clamping transfer box 4. The clamping device is a pneumatic telescopic component, and a positioning clamping head is provided at the telescopic rod position of the pneumatic telescopic component. The pneumatic telescopic component extends forward under the control of the control unit. Since the transfer box 4 is rectangular, the positioning clamping head is designed in the shape of a "7". When the pneumatic telescopic component extends, the "7" shaped positioning clamping head clamps the front end of the transfer box 4 at right angles.

[0031] The screwing unit 2 and the plugging unit 3 are located at two stations on the transfer line 1, namely the screwing station and the plugging station. The screwing unit 2 includes a pressing mechanism 21, a screwing mechanism 22, a first lifting plate 24 and a first sliding plate 25. The first lifting plate 24 is guided and slidably disposed on the edge of the transfer line 1 by a guide post, and is driven to move up and down by a first cylinder. At the same time, the extension and retraction of the cylinder is controlled by a control unit. The first sliding plate 25 is guided and slidably disposed on the upper end surface of the first lifting plate 24, and a second cylinder is connected to the first sliding plate 25. The second cylinder enables the first sliding plate 25 to move left and right on the first lifting plate 24.

[0032] The screwing mechanism 22 includes a screwing component 221 and a driving component 222. Since independent motors or other driving units occupy a large volume and have a high cost, the driving component 222 that drives the screwing component 221 to rotate in this application is not a direct motor or other independent driving unit.

[0033] The screwing component 221 is a rotating component with upper and lower limits and rotatably arranged on the first sliding plate 25. The number of columns of the screwing component 221 is the same as the number of columns of the frames in the transfer box 4, while the number of rows is half of the number of frames in the transfer box 4. The distance between every two screwing components 221 is twice the distance between the frames in the transfer box 4. In the initial state, the second cylinder is in the retracted state, and the screwing component 221 is aligned with the rotating shaft of the odd-numbered rows of timers in the lower locked transfer box 4. The second cylinder extends, causing the first sliding plate 25 to slide, thereby aligning the screwing component 221 with the rotating shaft of the even-numbered rows of timers in the lower locked transfer box 4, thus enabling the screwing operation of all timers in the transfer box 4.

[0034] The upper end of the screwing component 221 is equipped with a gear 2211, and the lower end of the screwing component 221 is equipped with a rotating sleeve 223 adapted to the rotating shaft of the timer. The center of the lower end of the rotating sleeve 223 is provided with a groove. It can only be fitted onto the rotating shaft of the timer when it is aligned with the rotating shaft, so as to perform the screwing operation. The angle of the rotating shaft on the timer is uniform at the initial stopping position. Therefore, the rotating shaft angle of the timers positioned in the transfer box 4 is uniform. The first lifting plate 24 descends and drives the first sliding plate 25, which is equipped with the screwing component 221, to descend together, so that the rotating sleeve 223 is fitted onto the rotating shaft of the timer. The drive gear 2211 rotates, thereby driving the screwing component 221 to rotate, thus completing the screwing operation.

[0035] A slider is disposed below the driving component 222, and a slide rail is disposed on the first sliding plate 25. The driving component 222 is guided and slidably disposed on the slide rail by the slider. The driving component 222 is a rack and pinion, which meshes with the gear 2211. The driving component 222 is guided and slids on the first sliding plate 25. Through the transmission of the rack and pinion, it drives the rotating component 221 to rotate. The number of driving components 222 is the same as the number of rotating components 221. The driving components 222 in each row are connected by adjusting components 26. The two ends of the adjusting component 26 are respectively screwed onto two adjacent driving components 222 by screwing. The two driving components 222 are adjusted by screwing the adjusting rod 26. The distance between adjacent drive components 222 is such that the drive component 222 meshes with the gear on the screwing component 221, thereby driving the screwing component 221 to rotate, so that the rotating sleeve 223 on each screwing component 221 is uniform and adapted to the rotating shaft on the timer. At the same time, a locking nut is provided on the adjusting rod 26. After the adjusting rod 26 is adjusted, the adjusting rod 26 and the drive component 222 are locked. Each row of drive components 222 on the first sliding plate 25 is provided with a third cylinder. The third cylinder is fixedly mounted on the first sliding plate 25 by bolts. Its extension and retraction drive the drive component 222 in this row to move left and right, thereby driving the screwing component 221 to rotate.

[0036] The first lifting plate 24 has a sliding groove, which provides clearance for the rotating sleeve 223 on the screwing component 221 when the first sliding plate 25 slides, allowing it to pass through the first lifting plate 24 and be fitted onto the rotating shaft of the timer.

[0037] The pressing mechanism 21 includes a second lifting plate 211 and a fourth cylinder that drives the second lifting plate 211 to move up and down. The fourth cylinder is fixedly configured on the frame of the transfer line 1, and its telescopic end is fixedly configured on the second lifting plate 211. The fourth cylinder is symmetrically configured on the left and right, and the two move synchronously, thereby driving the second lifting plate 211 to move up and down smoothly. A pressing head 212 for pressing the timer is provided on the second lifting plate 211. The second lifting plate 211 is located below the first lifting plate 24. The number and position of the pressing heads 212 are adapted to the timers in the transfer box 4 after pressing. Therefore, when the second lifting plate 211 moves downward under the drive of the fourth cylinder, all the timers in the transfer box 4 can be pressed.

[0038] The clamping head 212 has a through hole in the center. When the clamping head 212 is clamped on the timer, the through hole in the middle is coaxial with the rotating shaft on the timer. At the same time, the rotating sleeve 223 on the screwing mechanism 2 above the clamping mechanism 21 can pass through the through hole and be sleeved on the rotating shaft of the timer. At this time, the screwing component 22 rotates, thereby performing screwing work on the timer.

[0039] In this embodiment, there are two workstations: a screwing workstation and an electrical insertion workstation. The transfer box 4, filled with timers, is clamped and positioned by a positioning device after entering the screwing workstation. At this time, the second lifting plate 211 descends, and its pressing head 212 presses all the timers in the transfer box 4. The screwing component 221 on the first sliding plate 25 aligns with the timers in the odd-numbered rows of the transfer box 4. The first lifting plate 24 moves downward, causing the screwing component 221 to descend, allowing the rotating sleeve 223 to pass through the through hole and be fitted onto the rotating shaft of the timers in the odd-numbered rows. At this time, the driving component 222 moves, driving the screwing component 221... The timer rotates and is screwed on. After screwing, the first lifting plate 24 moves upward, causing the rotating sleeve 223 to disengage from the timer. Then, the driving component 222 returns to its original position, and the second cylinder pushes the first sliding plate 25 to move, so that the screwing component 221 aligns with the timer on the even-numbered rows. After alignment, the first lifting plate 24 descends again, and the rotating sleeve 223 passes through the through hole and is fitted onto the rotating shaft of the even-numbered row timer. At this time, the driving component 222 extends again, and the screwing component 221 completes the screwing operation on the even-numbered row timer, thus completing the screwing operation of the timers in the entire transfer box 4.

[0040] The plug-in unit 3 includes a plug-in component 31, a third lifting plate 32, and a clamping mechanism 21 for pressing. A positioning device is also configured on the plug-in station. When the transfer box 4 is transferred to the plug-in station, the positioning device positions and clamps it, while the clamping mechanism 21 clamps the timer inside the transfer box 4. The third lifting plate 32 is guided by guide posts to slide on the frame on which the transfer line 1 is mounted, and is driven by a fifth cylinder to move up and down relative to the transfer line 1. The plug-in component 31 is mounted on the third lifting plate 32, and the up and down movement of the third lifting plate 32 drives the plug-in component 31 to move up and down together. Multiple plug-in components 31 are evenly arranged and adapted to the timers inside the clamped transfer box 4. When the third lifting plate 32 descends, the plug-in components 31 on it perform power-on detection on all the timers. A channel hole is opened on the second lifting plate 211 at the plug-in station so that the plug-in component 31 can pass through the second lifting plate 211 and contact the guide plate on the timer to perform power-on detection.

[0041] The plug-in component 31 is equipped with a frame 311 for contacting the timer guide plate. The frame 311 is a slot design with an open bottom. Contact guide plates 312 are elastically guided and slidably arranged on the left and right inner walls of the slot of the frame 311. The left and right contact guide plates 312 are elastically pressed together. At the same time, an inclined chamfer is opened at the bottom. The two contact guide plates 312 combine to form an inverted V-shaped bevel. When the plug-in component 31 moves downward, the inverted V-shaped bevel formed by the two contact guide plates 312 presses against the timer guide plate. Then, the two contact guide plates 312 open to both sides and press against the two end faces of the timer guide plate, realizing the electrical connection between the plug-in component 31 and the timer guide plate, thereby enabling the plug-in component 31 to perform power-on detection of the timer.

[0042] Its working principle or usage method is as follows: In the initial state, the transfer box 4, which is equipped with a timer, is placed on the transfer line 1 by a robot or manually. The transfer line 1 moves the transfer box 4 and first moves it to the screwing station. The screwing unit 2 screws the timer in the transfer box 4. After the screwing is completed, the transfer line 1 moves the transfer box 4 to the power-on station for power-on testing.

[0043] After the transfer box 4 enters the tightening station, it is clamped and positioned by the positioning device. At this time, the second lifting plate 211 descends, and the clamping head 212 on it clamps all the timers inside the transfer box 4. At this time, the tightening component 221 on the first sliding plate 25 aligns with the timers in the odd-numbered rows inside the transfer box 4. The first lifting plate 24 moves downward, thereby driving the tightening component 221 to descend, so that the rotating sleeve 223 passes through the through hole of the clamping head 212 and is sleeved on the rotating shaft of the timers in the odd-numbered rows. At this time, the driving component 222 moves and drives the tightening component 221 to rotate, performing a tightening operation on the timers. After tightening is completed, the first lifting plate 24 moves upward, thereby causing the rotating sleeve 223 to pass through the through hole of the clamping head 212 and be sleeved on the rotating shaft of the timers in the odd-numbered rows. At this time, the driving component 222 moves and drives the tightening component 221 to rotate, performing a tightening operation on the timers. Sleeve 223 disengages from the timer, then drive component 222 resets backward, and at the same time the second cylinder pushes the first sliding plate 25 to move, so that the screwing component 221 aligns with the timers on the even-numbered rows. After alignment, the first lifting plate 24 descends again, and sleeve 223 passes through the through hole and is sleeved on the rotating shaft of the even-numbered row timer. At this time, drive component 222 extends again, and screwing component 221 completes the screwing operation on the even-numbered row timers, thereby completing the screwing operation on the timers in the entire transfer box 4. After all screwing is completed, pressing mechanism 21 and screwing mechanism 22 reset upward, and transfer line 1 begins to move, moving transfer box 4 to the power-on station.

[0044] When the transfer box 4 is transferred to the plug-in station, the positioning device clamps it in place, and at the same time, the pressing mechanism 21 presses the timer inside the transfer box 4. The third lifting plate 32 drives the plug-in component 31 to move downward. The inverted V-shaped oblique opening formed by the combination of two contact guide plates 312 presses against the guide plate of the timer. The two contact guide plates 312 open to both sides and press against the two end faces of the timer guide plate, realizing the electrical connection between the plug-in component 31 and the timer guide plate. The plug-in component 31 is equipped with two frame pieces 311, and the timer is also equipped with two guide plates. After the third lifting plate 32 descends to the position, the two frame pieces 311 cooperate with the two guide plates on the timer, the plug-in component 31 is energized, the energization status of the timer is detected, and the energization detection is completed.

[0045] Example 2:

[0046] The difference from Embodiment 1 lies in the structure of the plug-in component 31; all other aspects are the same. See also... Figures 1-8 The frame 311 is equipped with a calibration component, which is telescopically mounted on the upper wall of the frame 311. The upper ends of the two contact guide plates 312 are also equipped with chamfers. The chamfers at the upper ends of the two contact guide plates 312 combine to form a V-shaped bevel. The calibration component is perpendicular to the V-shaped bevel and can extend downward to touch the V-shaped bevel, so that the two contact guide plates 312 open to both sides and the end faces of the contact guide plates 312 contact the end faces of the calibration component.

[0047] After prolonged use, the contact guide plate 312 may lose its elasticity or become stained on the contact surface, thus affecting its conductivity. Therefore, when the timer is not powered on, the plug-in component 31 needs to be calibrated. The thickness of the calibration component is consistent with the thickness of the timer's guide plate, and the contact guide plate 312 of the plug-in component 31 can be tested through the calibration component.

[0048] The plug-in component 31 is equipped with two frames 311, which are respectively connected to the positive and negative terminals of the power supply. The calibration components inside the two frames 311 are connected by wires. After the calibration component extends out and is inserted into the two contact guide plates 312, the plug-in component 31 is powered on and the circuit is checked for continuity. If the circuit is not in a closed circuit, it is determined that the two contact guide plates 312 on the frame 311 are damaged or have a fault.

[0049] In this embodiment, the power-on detection in Example 1 detects a timer that is not powered on. At this time, the control system records this first and resets the plug-in unit 3 upward. Then, the calibration piece on the plug-in 31 that is not powered on extends downward to perform calibration on the plug-in 31. When the calibration piece extends, the plug-in 31 is powered on again. If the detection circuit is found to be closed, it is determined that there is a problem with the timer. If the detection circuit is open, it is determined that the plug-in 31 is faulty, and the operator is reminded to repair the plug-in 31 and manually test the timer at this location.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A timer power-on detection device, characterized in that: It includes a transfer line (1), on which a screwing unit (2) for screwing the timer, a plugging unit (3) for detecting whether the timer is powered on, and a transfer box (4) on which the timer is placed. The screwing unit (2) includes a clamping mechanism (21) for positioning and clamping the timer in the transfer box (4), multiple screwing mechanisms (22) for screwing the timer, and a lifting device for driving the screwing mechanism (22) to move up and down in coordination with the timer. The screwing mechanism (22) includes a screwing component (221) and a driving component (222) for driving the screwing component (221) to rotate. The lifting device (23) drives the screwing component (221) to descend and connect with the rotating shaft on the timer that is pressed by the pressing mechanism (21). The driving component (222) drives the screwing component (221) to rotate, thereby screwing the timer. After the screwing mechanism (22) completes the screwing, the plug-in unit (3) performs a power-on test on the timer.

2. The timer power-on detection device according to claim 1, characterized in that: The screwing unit (2) further includes a first sliding plate (25), a screwing component (221) is rotatably disposed on the first sliding plate (25), and a gear is disposed on the screwing component (221). A driving component (222) is guided and slidably disposed on the first sliding plate (25), and the driving component (222) is a rack. The driving component (222) is meshed with the gear, and the movement of the driving component (222) drives the screwing component (222) to rotate.

3. A timer power-on detection device according to claim 1 or 2, characterized in that: The first sliding plate (25) is evenly configured with multiple sets of rotating mechanisms (22). The driving members (222) on the same column are connected to each other by adjusting members (26). The rotating member (221) is configured with a rotating sleeve (223) adapted to the rotating shaft on the timer. The adjusting member (26) is used to make the initial rotating sleeve at the same angle.

4. The timer power-on detection device according to claim 3, characterized in that: Multiple timers are evenly placed inside the transfer box (4), and the distance between the two screwing parts (221) in the same column is twice that between two adjacent timers inside the transfer box (4).

5. The timer power-on detection device according to claim 3, characterized in that: The screwing unit (2) further includes a first lifting plate (24) that is slidably arranged on the transfer line (1) and guided by the upper and lower guides. The first sliding plate (25) is slidably arranged on the first lifting plate (24) and is driven to move back and forth by the first telescopic member. The moving distance is the distance between two adjacent timers in the transfer box (4).

6. The timer power-on detection device according to claim 3, characterized in that: The first lifting plate (24) is provided with a sliding groove for the rotating sleeve to move back and forth to provide clearance space.

7. The timer power-on detection device according to claim 1, characterized in that: The plug-in unit (3) includes a plug-in component (31) and a third lifting plate (32). The plug-in component (31) is equipped with a plug-in port that is compatible with the guide plate on the timer. The plug-in component (31) is disposed on the third lifting plate (32) to drive the plug-in component (31) to connect with the guide plate on the timer.

8. The timer power-on detection device according to claim 7, characterized in that: The plug-in unit (3) is also equipped with a clamping mechanism (21), which is used to lock and clamp the timer in the transfer box (4). After clamping, the plug-in component (31) is then tested for plugging in.

9. A timer power-on detection device according to claim 8, characterized in that: The pressing unit (21) includes a second lifting plate (211) disposed on the transfer line (1) for moving up and down relative to the transfer line (1). The second lifting plate (211) is provided with the same number of pressing heads (212) as the timer in the transfer box (4). The pressing heads (212) avoid the guide plate and the rotating shaft on the timer when pressing.

10. A power-on detection method using a timer power-on detection device as described in any one of claims 1-7: S1: The robot or manual person places the transfer box (4) on the transfer line (1). The transfer line (1) drives it to enter the screwing station first, and then the positioning device positions and clamps it, and the transfer line (1) stops moving. S2: The clamping mechanism (21) clamps the timer in the transfer box (4), and the screwing mechanism (22) screws the timer in the transfer box (4) in batches. The clamping mechanism (21) is always in the clamping state. S3: After all the screwing is completed, the clamping mechanism (21) and the screwing mechanism (22) return to their initial positions, the positioning device releases the transfer box (4), and the transfer line (1) begins to move, moving the transfer box (4) to the plug-in station; S4: Inside the power-on station, the positioning device positions and clamps the transfer box (4), while the transfer line (1) stops moving. The clamping mechanism (21) clamps the timer inside the transfer box (4), and the power-on unit (3) descends to simultaneously power on all the timers inside the transfer box (4) for testing. Any unqualified timers are recorded.

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