CN102854008A - Inspection device of clockwork timer - Google Patents

Abstract

The invention discloses an inspection device of a clockwork timer. The inspection device comprises a base, a clamping mechanism, a feeding and controlling mechanism and an executing mechanism, wherein the clamping mechanism, the feeding and controlling mechanism and the executing mechanism are sequentially connected with one another and are fixedly arranged on the base; the clamping mechanism comprises a clamping slot, and the clamping slot is fixedly formed on the base; the feeding and controlling mechanism comprises a sensor, and the sensor is arranged on the base; the executing mechanism comprises a tightening device, a motor, a sliding block, a guide rail, an air cylinder and a PLC (programmable logic controller) system; the tightening device is connected with an output shaft of the motor; the motor is arranged on the sliding block; the sliding block is arranged on the guide rail and can slide along the guide rail; the guide rail is arranged on the base; the air cylinder is arranged on the base, and the output shaft of the air cylinder is connected with the sliding block; and the PLC system is connected with the air cylinder through a control electromagnetic valve. By the inspection device, the whole inspection process can be automatically finished, the production efficiency is improved, the manual operation is replaced, and the accuracy is improved.

Description

Checking device for wind-up timers

technical field

The invention relates to a testing device for a clockwork timer.

Background technique

A clockwork timer is a timer with a spring as the main energy storage component, which is widely used in electric ovens, washing machines and other products.

At present, the inspection process of the wind-up timer is all done manually, which has many problems such as low efficiency and large error.

Contents of the invention

In order to overcome the problems of low manual operation efficiency and large error in the inspection process of the existing clockwork timer, the present invention provides an inspection device for the clockwork timer.

The technical scheme adopted in the present invention is:

The inspection device of a clockwork timer is characterized in that it includes a base, a clamping mechanism, a feedback and control mechanism, and an executing mechanism that are fixed on the base and connected in sequence;

The clamping mechanism includes a clamping groove, and the clamping groove is fixedly installed on the base;

The feedback and control mechanism includes a sensor mounted on the base;

The executive mechanism includes a tightening device, a motor, a slider, a guide rail, a cylinder and a PLC control system, the tightening device is connected with the output shaft of the motor, the motor is arranged on the slider, and the slider is arranged on the on the guide rail and can slide along the guide rail, the guide rail is installed on the base, the cylinder is arranged on the base and its output shaft is connected with the slider, and the PLC control system controls the electromagnetic The valve controls the cylinder to push the slider to slide on the guide rail.

Further, the motor is mounted on a motor mounting plate, and the motor mounting plate is mounted on the slider.

Further, the cylinder is installed on the cylinder installation frame, and the cylinder installation frame is fixedly installed on the base.

Further, the length and width of the clamping groove are the same as those of the timer; the height of the clamping groove does not exceed the height of the protruding shaft at the front end of the timer.

Further, the tightening device is connected to the output shaft of the motor through bolts.

Further, the tail of the slider is connected with the output shaft of the cylinder through threads and nuts.

Further, the base is provided with installation holes for installing the clamping groove, the sensor, the guide rail and the cylinder installation frame.

Further, the tightening device includes a rotating shaft, an end cover, a ball, a spring and a sleeve, the end cover is fixedly mounted on the sleeve by bolts, the rotating shaft is arranged in the sleeve, and the ball Set in the groove in the sleeve, the groove is opened on the sleeve at the lower end of the rotating shaft, one end of the spring is fixed on the ball, and the other end is fixed at the bottom of the groove.

The type of sensor described in the present invention is a photoelectric sensor, which can detect tiny objects of 0.85 mm at a distance of 2 m.

The working process of the present invention is as follows: the timer to be checked is placed in the clamping groove, and the PLC control system controls the cylinder to push the slider by controlling the solenoid valve, that is, pushes the motor to move along the guide rail at the same time. Move forward until the card at the front end of the tightening device just hits the extension shaft of the timer, and then the PLC control system controls the rotation of the motor until the card at the front end of the tightening device just snaps into the front end of the extension shaft of the timer In the small slot, the entire positioning process is completed. Next, the motor drives the tightening device and the protruding shaft of the timer to continue to rotate until the clockwork inside the timer is screwed to death, and then continues to increase the torsional force, at this time the tightening device will slip, thereby To protect the spring from being twisted, when the motor drives the tightening device to rotate 10 times, the PLC control system controls the motor to reverse until the pin on the timer extension shaft reaches the horizontal position for the first time, and at the same time , the sensor will transmit this information to the PLC control system, and then the PLC control system controls the motor to continue to rotate for two more turns, then the motor stops rotating, and the PLC control system controls the cylinder to drive the The motor returns to the initial position, and after waiting for the timer to complete, a complete inspection process ends.

The tightening device of the present invention transmits force by the contact between the rotating shaft and the ball. When the motor twists the mainspring to death and further increases the torsional force of the motor, since the contact surface between the rotating shaft and the ball is an inclined plane, they When the friction between them is not enough to overcome this torsional force, slippage will occur, so as to protect the mainspring from being twisted.

The beneficial effects of the present invention are reflected in:

1. The entire inspection process can be automatically completed to improve production efficiency;

2. If necessary, multiple production lines can be inspected at the same time, greatly improving production efficiency;

3. Instead of manual work, the accuracy is improved.

Description of drawings

Fig. 1 is a front view of the overall structure of the present invention.

Fig. 2 is a top view of the overall structure of the present invention.

Fig. 3 is a state diagram A of the interface between the present invention and the timer.

Fig. 4 is a state diagram B of the interface between the present invention and the timer.

Fig. 5 is a structural schematic diagram of the tightening device of the present invention.

Fig. 6 is a sectional view of the tightening device of the present invention.

Detailed ways

Referring to Fig. 1 to Fig. 6, the inspection device of the clockwork timer includes a base 11, a clamping mechanism, a feedback and control mechanism and an actuator fixed on the base 11 and connected in sequence;

The clamping mechanism includes a clamping groove 1, and the clamping groove 1 is fixedly installed on the base 11;

The feedback and control mechanism includes a sensor 3, and the sensor 3 is installed on the base 11;

The executive mechanism comprises a tightening device 4, a motor 5, a slide block 7, a guide rail 8, a cylinder 9 and a PLC control system, the tightening device 4 is connected to the output shaft of the motor 5, and the motor 5 is located on the slide block 7, the slider 7 is set on the guide rail 8 and can slide along the guide rail 8, the guide rail 8 is installed on the base 11, the cylinder 9 is set on the base 11 and its output The shaft is connected with the slider 7, and the PLC control system controls the cylinder 9 to push the slider 7 to slide on the guide rail 8 by controlling the solenoid valve.

Further, the motor 5 is mounted on a motor mounting plate 6 , and the motor mounting plate 6 is mounted on the slider 7 .

Further, the cylinder 9 is installed on the cylinder mounting frame 10 , and the cylinder mounting frame 10 is fixedly mounted on the base 11 .

Further, the length and width of the clamping groove 1 are the same as those of the timer 2;

Further, the tightening device 4 is connected to the output shaft of the motor 5 through bolts.

Further, the tail of the slider 7 is connected with the output shaft of the cylinder 9 through threads and nuts.

Further, the base 11 is provided with installation holes for installing the clamping groove 1 , the sensor 3 , the guide rail 8 and the cylinder installation frame 10 .

Further, the tightening device 4 includes a rotating shaft 12, an end cover 13, a ball 14, a spring 15 and a sleeve 16, the end cover 13 is fixedly mounted on the sleeve 16 by bolts, and the rotating shaft 12 is arranged on In the sleeve 16, the ball 14 is arranged in a groove in the sleeve 16, the groove is opened on the sleeve 16 at the lower end of the rotating shaft 12, and one end of the spring 15 is fixed on the sleeve 16. On the ball 14, the other end is fixed on the bottom of the groove.

The type of sensor 3 in the present invention is a photoelectric sensor, which can detect tiny objects of 0.85 mm at a distance of 2 m.

The working process of the present invention is: place the timer 2 that needs to be checked in the clamping groove 1, and the PLC control system controls the cylinder 9 to push the slider 7 by controlling the solenoid valve, that is, pushes the motor 5 at the same time Move forward along the guide rail 8 until the card at the front end of the tightening device 4 just hits the extension shaft of the timer 2, and then the PLC control system controls the rotation of the motor 5 until the card at the front end of the tightening device 4 The card just snaps into the small groove that the timer 2 stretches out from the front end of the shaft, so that the whole positioning process has been completed. Next, the motor 5 drives the protruding shaft of the tightening device 4 and the timer 2 to continue to rotate until the clockwork inside the timer 2 is screwed to death, and then continues to increase the torsional force. At this time, the tightening device 4 It will slip, so as to protect the mainspring from being unscrewed. When the motor 5 drives the tightening device 4 to rotate 10 times, the PLC control system controls the motor 5 to reverse until the timer 2 extends out of the shaft. When the pin reaches the horizontal position for the first time, at the same time, the sensor 3 will transmit this information to the PLC control system, and then the PLC control system controls the motor 5 to continue to rotate for two more circles, and then the motor 5 stops rotating , the PLC control system controls the cylinder 9 to drive the motor 5 to return to the initial position, and waits for the timer 2 to complete a complete inspection process.

The tightening device 4 of the present invention transmits power by contacting the rotating shaft 12 with the ball 14. When the motor 5 screwed the clockwork to death, when the torsional force of the motor 5 was further increased, due to the contact between the rotating shaft 12 and the ball 14 The contact surface is an inclined plane, so when the friction force between them is not enough to overcome the torsional force, slippage will occur, so as to protect the mainspring from being twisted.

The content described in the embodiments of this specification is only an enumeration of the implementation forms of the inventive concept. The protection scope of the present invention should not be regarded as limited to the specific forms stated in the embodiments. Equivalent technical means that a person can think of based on the concept of the present invention.

Claims (8)

1. the verifying attachment of wind-up timer is characterized in that: comprise base, be installed in clamping mechanism, feedback and the control gear and the topworks that connect successively on the described base;

Described clamping mechanism comprises the clamping groove, and described clamping groove is fixedly mounted on the described base;

Described feedback and control gear comprise sensor, and described installation of sensors is on described base;

Described topworks comprises device for screwing up, motor, slide block, guide rail, cylinder and PLC control system, described device for screwing up links to each other with described motor output shaft, described motor is located on the described slide block, described slide block is located on the described guide rail and can slides along described guide rail, described guide rails assembling is on described base, described cylinder is located on the described base and its output shaft is connected with described slide block, and described PLC control system promotes described slide block by the described cylinder of control solenoid control and slides at described guide rail.

2. the verifying attachment of wind-up timer as claimed in claim 1, it is characterized in that: described motor is installed on the motor mounting plate, and described motor mounting plate is installed on the described slide block.

3. the verifying attachment of wind-up timer as claimed in claim 1, it is characterized in that: described cylinder is installed on the described cylinder erecting frame, and described cylinder erecting frame is fixedly mounted on the described base.

4. the verifying attachment of wind-up timer as claimed in claim 1, it is characterized in that: the length of described clamping groove is identical with length and the width of timer with width.

5. the verifying attachment of wind-up timer as claimed in claim 1, it is characterized in that: described device for screwing up is connected with described motor output shaft by bolt.

6. the verifying attachment of wind-up timer as claimed in claim 1, it is characterized in that: the afterbody of described slide block links to each other with described cylinder output shaft with nut by screw thread.

7. the verifying attachment of wind-up timer as claimed in claim 1 is characterized in that: offer the mounting hole that described clamping groove, sensor, guide rail and cylinder erecting frame are installed on the described base.

8. the verifying attachment of wind-up timer as claimed in claim 1, it is characterized in that: described device for screwing up comprises turning axle, end cap, ball, spring and sleeve, described end cap is mounted by means of bolts on the described sleeve, described turning axle is arranged in the described sleeve, described ball is located in the groove in the described sleeve, described groove is opened on the described sleeve of described turning axle lower end, and described spring one end is fixed on the described ball, and the other end is fixed on the bottom of described groove.

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