Electromagnet push rod extension length adjusting device

Abstract

The utility model provides an electromagnet push rod extension length adjusting device, including frame, fixedly installed water platform on frame, fixedly installed U limit frame on water platform, two through holes are set up in water platform in U limit board, two through holes correspond with two push rods on electromagnet, two capacitance gages are fixedly installed under water platform, and the movable contact of two capacitance gages stretches into the through hole, and the movable contact of capacitance gage is pushed down by push rod after electromagnet is electrified, fixedly installed slide platform pneumatic cylinder on the frame above water platform, and the movable end of slide platform pneumatic cylinder is installed with two sets of adjusting mechanism in parallel, and each set of adjusting mechanism includes servo motor fixedly connected in the movable end of slide platform pneumatic cylinder, and pneumatic finger is fixedly connected on the output shaft of servo motor, and pneumatic finger corresponds with push rod up and down.

Description

Technical Field

[0001] This utility model relates to electromagnets, and in particular to an electromagnet push rod extension length adjustment device, belonging to the field of electromagnet manufacturing technology. Background Technology

[0002] The SM-10 dual-position electromagnet is widely used to control hydraulic valves on hydraulic supports. When the product is energized, the coil extends, pushing the push rod against the hydraulic valve connecting rod, causing the valve to switch direction. The extension length of the push rod directly affects whether the valve can switch smoothly. Therefore, the extension length of the push rod when energized is a critical dimension in the production of the electromagnet. To facilitate manufacturing and adjustment, the push rod on the current design is screwed into the screw hole of the armature via an external thread. The extension length of the push rod can be adjusted relative to the push rod and armature. Specifically, during production, the female plug of the power supply is manually inserted into the male plug of the semi-finished product with its casing assembled. After energizing, the extension length of the push rod is measured with calipers and compared with the required extension length. If they do not match, the push rod and armature are adjusted relative to each other to the target range. This adjustment method relies entirely on manual labor, which is labor-intensive, and the manual reading of calipers introduces significant personal biases, leading to poor product consistency. Summary of the Invention

[0003] The purpose of this invention is to overcome the aforementioned problems in adjusting the extension length of an electromagnet push rod with an armature, and to provide an electromagnet push rod extension length adjustment device.

[0004] To achieve the purpose of this utility model, the following technical solution is adopted: an electromagnet push rod extension length adjustment device includes a frame, a water platform fixedly installed on the frame, a U-shaped limiting frame fixedly installed on the water platform, two through holes opened in the water platform within the U-shaped limiting plate, the two through holes corresponding to two push rods on the electromagnet, two grating rulers fixedly installed under the water platform, the moving contacts of the two grating rulers extending into the through holes, after the electromagnet is energized, the push rod pushes the moving contacts of the grating rulers to move downward; a slide cylinder is fixedly installed on the frame above the water platform, two sets of adjustment mechanisms are installed side by side on the actuating end of the slide cylinder, each set of adjustment mechanisms includes a servo motor fixedly connected to the actuating end of the slide cylinder, a pneumatic finger fixedly connected to the output shaft of the servo motor, the pneumatic finger corresponding vertically to the push rod.

[0005] Furthermore, the pneumatic finger is a 360-degree unlimited rotating capping pneumatic gripper.

[0006] Furthermore, the through hole is an inverted T-shaped hole, and the moving contact of the grating ruler is located within the height range of the horizontal side of the inverted T-shaped hole.

[0007] The positive and beneficial technical effects of this utility model are as follows: This adjustment device can prevent errors caused by manual reading of calipers, and the consistency of the adjusted product is better. The specific implementation method will be described in detail. Attached Figure Description

[0008] Figure 1 This is a front view schematic diagram of this utility model.

[0009] Figure 2 A top-down view of the water platform.

[0010] Figure 3 This is a cross-sectional view of the through-hole area. Detailed Implementation

[0011] 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.

[0012] 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: horizontal platform; 3: capacity scale A; 4: capacity scale B; 5: electromagnet; 6: push rod A; 7: push rod B; 8: pneumatic finger A; 9: pneumatic finger B; 10: servo motor A; 11: servo motor B; 12: slide cylinder; 13: limit frame; 14: inverted T-shaped hole.

[0013] As shown in the attached figure, an electromagnet push rod extension length adjustment device is provided. The electromagnet in this application is a dual-position electromagnet SM-10, including a frame 1. A horizontal platform 2 is fixedly installed on the frame, and a U-shaped limiting frame 13 is fixedly installed on the horizontal platform. Two through holes are opened in the horizontal platform within the U-shaped limiting plate. The through holes are inverted T-shaped holes 14. The two through holes correspond to two push rods on the electromagnet. Figure 5 shows the electromagnet, which has two push rods A6 and B7. After the outer shell is assembled to form a semi-finished product, the front and rear ends of the push rods are located outside the electromagnet shell. Two grating rulers A3 and B4 are fixedly installed under the horizontal platform. The grating rulers are connected to a display device, and the moving contacts of the two grating rulers extend into the through holes. The moving contacts of the grating rulers are located within the horizontal height range of the inverted T-shaped holes, which can prevent foreign objects from falling in. The error is caused by the movement of the moving contact after the through hole falls onto the moving contact. After the electromagnet is energized, the push rod pushes the moving contact of the scale ruler downward. A slide cylinder 12 is fixedly installed on the frame above the platform. Two sets of adjustment mechanisms are installed side by side on the actuating end of the slide cylinder. Each set of adjustment mechanisms includes a servo motor fixedly connected to the actuating end of the slide cylinder. The two servo motors in the figure are servo motor A10 and servo motor B11. A pneumatic finger is fixedly connected to the output shaft of the servo motor. The pneumatic finger corresponds to the push rod vertically. The two pneumatic fingers in the figure are pneumatic finger A8 and pneumatic finger B9. The pneumatic finger is a 360-degree unlimited rotating capping pneumatic gripper. The 360-degree unlimited rotating capping pneumatic gripper is an existing product. It can rotate continuously for multiple revolutions. While rotating, the air pipe supplying air to the pneumatic finger does not rotate, so there is no need to consider the problem of entanglement.

[0014] When adjusting the extension length of the push rod using this device, place the two push rods of the semi-finished electromagnet into the inverted T-shaped holes, plug the female power plug into the male plug of the electromagnet, and energize the electromagnet. After energizing, the push rod moves and extends, driving the moving contact of the scale downward. The extension length of the push rod can be obtained according to the change in the scale value. Compare the extension length of the push rod measured by the scale with the required extension length of the push rod to obtain the adjustment amount. The pitch of the threaded connection between the armature and the push rod is a fixed value, so the rotation direction and number of rotations (angle value) of the servo motor can be obtained according to the adjustment amount. The stage cylinder can be driven to descend (manually), and the two pneumatic fingers can clamp the corresponding push rods respectively. Then (the rotation angle can be manually input) the servo motor to rotate the corresponding angle. After the adjustment is completed, the pneumatic fingers are released, and the stage cylinder rises. To ensure quality, the electromagnet can be energized again after adjustment to verify whether the extension length requirement of the push rod has been met. If it has, the semi-finished product is removed and proceeded to the next process. If it has not met the requirements, the above adjustment process is repeated.

[0015] This device can also serve as the hardware foundation for the subsequent development of fully automatic adjustment devices.

[0016] 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. An electromagnet push rod extension length adjustment device, comprising a frame, characterized in that: A water platform is fixedly installed on the frame, and a U-shaped limiting frame is fixedly installed on the water platform. Two through holes are opened in the water platform inside the U-shaped limiting plate, and the two through holes correspond to two push rods on the electromagnet. Two capacitive scales are fixedly installed under the water platform, and the moving contacts of the two capacitive scales extend into the through holes. When the electromagnet is energized, the push rod pushes the moving contacts of the capacitive scales to move down. A slide cylinder is fixedly installed on the frame above the water platform. Two sets of adjustment mechanisms are installed side by side on the actuating end of the slide cylinder. Each set of adjustment mechanisms includes a servo motor fixedly connected to the actuating end of the slide cylinder. A pneumatic finger is fixedly connected to the output shaft of the servo motor, and the pneumatic finger corresponds vertically to the push rod.

2. The electromagnet push rod extension length adjustment device according to claim 1, characterized in that: The pneumatic finger is a 360-degree unlimited rotating capping pneumatic gripper.

3. The electromagnet push rod extension length adjustment device according to claim 1, characterized in that: The through hole is an inverted T-shaped hole, and the moving contact of the scale ruler is located within the height range of the horizontal side of the inverted T-shaped hole.

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