Push rod length measuring device in electromagnet production

Abstract

A push rod length measuring device in electromagnet production comprises a vibration disc, the vibration disc is connected to a controller for control, a discharge port of the vibration disc is connected with a push rod discharge channel, push rods are sequentially arranged in the discharge channel, the push rod length measuring device further comprises a servo motor, the servo motor is fixed to a machine frame, and the servo motor is connected with the controller. The rotating disc is fixedly connected to an output shaft of the servo motor, a circle of through holes are formed in the rotating disc, the diameter of the through holes is larger than that of the push rod, when the rotating disc rotates, the through holes can directly face the discharging channel in sequence, an air cylinder is fixedly installed on the portion, in front of the rotating disc, of the rack, the air cylinder is connected to the controller, and the capacitive grating ruler is fixedly connected to an action part of the air cylinder. A positioning surface is fixedly arranged at the rear part of the turntable corresponding to a moving contact of the capacitive grating ruler, the positioning surface is positioned behind the through hole rotating to the positioning surface, a photoelectric switch is arranged behind the turntable opposite to the discharging channel, and the photoelectric switch can control the starting and stopping of the vibration disc. The device can save force.

Description

Technical Field

[0001] This utility model relates to electromagnet production equipment, and in particular to a push rod length measuring device used in electromagnet production, belonging to the technical field of electromagnet production equipment. Background Technology

[0002] A push rod is a component of an electromagnet, usually integrated with the armature (moving iron). When the electromagnet acts as a control element, it moves with the armature to drive the valve's opening or closing. In electromagnet production, the push rods corresponding to specific models have a designed standard length range. Push rods exceeding this range are considered unqualified and cannot proceed to the next process. Therefore, a full inspection of the push rod length is required during electromagnet production. The conventional method is to manually pick up the push rod and measure it with measuring tools. This method is labor-intensive and prone to errors during measurement, leading to push rods with unqualified lengths entering the next process and resulting in the scrapping of components or products after assembly. Summary of the Invention

[0003] The purpose of this invention is to overcome the aforementioned problems in the measurement of push rod length in existing electromagnet production, and to provide a push rod length measuring device for electromagnet production.

[0004] To achieve the purpose of this utility model, the following technical solution is adopted: a push rod length measuring device in electromagnet production, including a vibratory plate, which is connected to a controller for control. The vibratory plate has a push rod discharge channel connected to its discharge port, and the push rods are arranged sequentially in the discharge channel. It also includes a servo motor, which is fixed on a frame. A turntable is fixedly connected to the output shaft of the servo motor. A ring of through holes is formed on the turntable, the diameter of which is larger than the diameter of the push rods. When the turntable rotates, each through hole can be aligned with the discharge channel in sequence. A cylinder is fixedly installed on the frame in front of the turntable and is connected to the controller. A grating ruler is fixedly connected to the actuating part of the cylinder. A positioning surface is fixedly provided on the rear part of the turntable corresponding to the moving contact of the grating ruler. The positioning surface is located after the through hole of the positioning surface. A photoelectric switch is installed behind the turntable directly opposite the discharge channel. The photoelectric switch can control the start and stop of the vibratory plate.

[0005] Furthermore, the extension line of the moving contact intersects the radial line in the vertical direction of the turntable.

[0006] Furthermore, the number of through holes is 15-30, and the servo motor receives one pulse to drive the rotation angle to be the angle between two adjacent through holes.

[0007] The positive and beneficial technical effects of this utility model are as follows: after the push rods are sorted and enter the through hole, the length of the push rods is measured by a cylinder-driven scale, which saves manpower and has high measurement reliability. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the entire device.

[0009] Figure 2 This is a schematic diagram showing the locations of the discharge channel, through holes, and photoelectric switches. Detailed Implementation

[0010] To more fully explain the implementation of this utility model, implementation examples are provided. These implementation examples are merely illustrative of this utility model and do not limit its scope.

[0011] The present invention will be further explained in detail with reference to the accompanying drawings, in which the following references are made: 1: frame; 2: servo motor; 3: cylinder; 4: scale ruler; 5: moving contact; 6: vibratory feeder; 7: discharge channel; 8: positioning surface; 9: turntable; 10: through hole; 11: photoelectric switch; 12: push rod.

[0012] As shown in the attached diagram, a push rod length measuring device in electromagnet production includes a vibratory feeder 6, which is connected to a controller. A push rod discharge channel 7 is connected to the discharge port of the vibratory feeder 6. The push rods are arranged sequentially in the discharge channel. The vibratory feeder can be purchased commercially. Using a vibratory feeder to sort the push rods and discharge them through the discharge channel is existing technology. The structure and principle of the vibratory feeder will not be elaborated further. The device also includes a servo motor 2, which can be a servo geared motor with a reducer. The servo motor is fixed to the frame 1, and a turntable 9 is fixedly connected to the output shaft of the servo motor. A ring of through holes 10 is formed on the turntable, with 15-30 through holes. A pulse drives the servo motor to rotate by the angle between two adjacent through holes. For example, when the interval between two through holes is 20 degrees, a pulse drives the servo motor to rotate by 20 degrees.

[0013] The diameter of the through hole is larger than the diameter of the push rod 12. When the turntable 9 rotates, each through hole can be aligned with the discharge channel in sequence. A cylinder 3 is fixedly installed on the frame in front of the turntable. The cylinder is connected to the controller. The scale 4 is fixedly connected to the actuating part of the cylinder. The moving contact 5 of the scale 4 is located at the rear of the turntable with a positioning surface 8 fixedly provided. The positioning surface is located after the through hole rotates to the positioning surface. A photoelectric switch 11 is installed behind the turntable that is aligned with the discharge channel. The photoelectric switch controls the start and stop of the vibratory feeder. In this embodiment, the extension line of the moving contact intersects the radial line in the vertical direction of the turntable, so that the push rod is located at the bottom of the through hole during measurement.

[0014] The working process of this utility model is as follows: After being conditioned by the vibratory feeder, the push rods are arranged sequentially in the discharge channel. Each end of the discharge channel corresponds to a through hole. Driven by the vibratory feeder, the last push rod enters the through hole. After entering to a certain depth, the push rod disengages from the discharge channel. A photoelectric switch senses the push rod, controlling the vibratory feeder to stop. The servo motor drives the turntable to rotate once, and the cylinder drives the calibration scale to move towards the turntable. If there is no push rod in the through hole, the moving contact of the calibration scale does not retract and no data is displayed. If there is a push rod in the through hole, the moving contact will push the push rod against the positioning surface. As the cylinder advances, the push rod retracts against the moving contact, at which point the calibration scale will display data. Based on the data displayed by the calibration scale, it can be determined whether the push rod is qualified. The calibration scale is an existing measuring instrument and can be purchased on the market.

[0015] After a detailed description of the embodiments of this utility model, those skilled in the art will clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above-mentioned patent applications. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the scope of the technical solution of this utility model, and this utility model is not limited to the embodiments of the examples given in the specification.

Claims

1. A push rod length measuring device for electromagnet production, comprising a vibratory feeder connected to a controller, wherein a push rod discharge channel is connected to the discharge port of the vibratory feeder, and push rods are arranged sequentially in the discharge channel, characterized in that: It also includes a servo motor, which is fixed on the frame. The turntable is fixedly connected to the output shaft of the servo motor. A ring of through holes is opened on the turntable, and the diameter of the through holes is larger than the diameter of the push rod. When the turntable rotates, each through hole can be aligned with the discharge channel in sequence. A cylinder is fixedly installed on the frame in front of the turntable and is connected to a controller. A scale is fixedly connected to the actuating part of the cylinder. A positioning surface is fixedly set on the rear of the turntable corresponding to the moving contact of the scale. The positioning surface is located after the through hole of the positioning surface. A photoelectric switch is installed behind the turntable that is aligned with the discharge channel. The photoelectric switch can control the start and stop of the vibratory feeder.

2. The push rod length measuring device in electromagnet production according to claim 1, characterized in that: The extension line of the moving contact intersects the radial line in the vertical direction of the turntable.

3. The push rod length measuring device in electromagnet production according to claim 1, characterized in that: The number of through holes is 15-30, and the servo motor receives one pulse to drive the rotation angle to be the angle between two adjacent through holes.

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