CN206348670U - A kind of free release control instrument of high accuracy based on electromagnet - Google Patents

Abstract

The utility model is related to the technical field of physical mechanics test, relates more specifically to the free release process of this kind of experiment, is related to a kind of free release control instrument of high accuracy based on electromagnet.A kind of free release control instrument of high accuracy based on electromagnet, wherein, including electromagnet, connect electromagnet fastener, the attitude controller of different postures, the height adjuster being connected on attitude controller, the D.C. regulated power supply and switching device that are connected with electromagnet can be designed to according to different test requirements documents.The utility model possesses high precision, simplification and the stability that parts are changed in the flexibility for adapting to different tests condition, assembling.

Description

A high precision free release control instrument based on electromagnet

technical field

The utility model relates to the technical field of physical and mechanical tests, more specifically to the free release process of this type of test, and relates to a high-precision free release control instrument based on electromagnets.

Background technique

In physical and mechanical experiments, the problem of limiting the test object is often encountered. In particular, for tests such as free fall, free release, and free fall, the test object is required to be released from a fixed height and a fixed initial state, and even some tests have very strict requirements for this free release process, such as requiring the release process No interference, good repeatability of multiple tests, high stability, etc. The common release methods include the release method of letting go, the method of cutting the suspension line, and the method of mechanical release. The release method is a rough method, which is not suitable for high-precision tests; in the method of cutting the suspension line, the center of gravity of the test object must pass through the suspension line. If the test requires that the center of gravity of the test object does not pass through the suspension line, then it must It is required to add several suspension wires, so that it is impossible to guarantee that these wires are broken at the same time at the moment of thread cutting; the accuracy of the mechanical release method is high, but this method requires special mechanical equipment, and this method generally It is designed for some special experiments, and does not have universality and flexibility.

Contents of the invention

In order to overcome at least one defect of the above-mentioned prior art, the utility model provides a high-precision free-release control instrument based on an electromagnet, which has high precision and flexibility.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a high-precision free-release control instrument based on electromagnets, which includes electromagnets, clamps connected to electromagnets, and can be designed into different types according to different test requirements. The attitude controller of the attitude, the altitude regulator connected to the attitude controller, the DC stabilized power supply connected with the electromagnet, and the switching device.

In the utility model, it has the characteristics of flexibility: it can adapt to different test conditions, including specific initial postures of test objects, different initial adsorption forces, and different test heights, and is even suitable for test objects with particularly irregular shapes.

Further, as an optimal technical solution, a series of attitude controllers with different attitudes (such as different inclination angles) can be manufactured to facilitate selection and replacement for different tests.

Further, as a preferred technical solution, for more complex tests, a spherical hinge can be used to connect the attitude controller and the height adjuster.

Furthermore, as an optimal technical solution, the control instrument, especially the attitude controller, can be easily produced by using 3D printing technology, and the experimenters can make any attitude controller they want according to their own needs.

Further, as an optimal technical solution, select appropriate electromagnets according to different test requirements, mainly to select different rated voltages and rated currents to achieve sufficient initial adsorption force. Moreover, the power supply used must use a DC stabilized power supply, because when the power supply is turned off at the moment of the switch, some internal capacitances will make the electromagnet be in a slow charging and discharging process and the magnetism will not disappear immediately, which will cause large errors in the test and Reproducibility is poor.

Further, the attitude controller includes a controller main body, a clamping slot provided in the controller main body, and a direction positioning part provided on the controller main body which can face different directions, and the clamping slot is clamped and fixed with the clip, The direction positioning part is connected with the height adjuster. A positioning rod is also connected to the direction positioning part, a cavity is provided inside the height adjuster, and the height adjuster is sleeved on the positioning rod through the cavity. The clamping part includes a clamping part and a connecting part arranged under the clamping part, the clamping part is connected with the clamping groove, and the connecting part is connected with the electromagnet.

In the utility model, the shape of the positioning rod matches the shape of the cavity inside the height adjuster, and the entire height adjuster can be sleeved on the positioning rod. The positioning rod is fixed to the direction positioning part, the clamping part can slide along the clamping groove, and the clamping part can be clamped inside the clamping groove.

Further, the connection between the clip and the attitude controller and the connection between the attitude controller and the height adjuster are all connected by tightening bolts.

A control method for a high-precision free-release control instrument based on an electromagnet, comprising the following steps:

A． Make each component of the control instrument: according to the specific requirements of the test, make several specific attitude controllers and other components;

B. Assemble the various components: Assemble the various components according to the schematic diagram. Note that the power supply mentioned above is a DC regulated power supply and cannot use AC power, because some internal capacitances of the AC power supply will make the electromagnet In the slow charge and discharge process and the magnetism does not disappear immediately, this will cause large test errors and poor repeatability;

C. Test process: Turn on the switch, the electromagnet is magnetic when it is energized, then hang the test object (iron or with a patch or magnetic strip) on the electromagnet; turn off the switch, the electromagnet is powered off and the magnetism disappears , the test object is accurately and stably separated from the electromagnet;

D. Replace the attitude controller: replace different attitude controllers to test in other working conditions.

Compared with the prior art, the beneficial effect is: the utility model has the characteristics of flexibility: it can adapt to different test conditions, including the specific initial posture of the test object, different initial adsorption force, different test heights, and even suitable for shapes Especially irregular test objects, and then borrowing the support of 3D printing technology, the control instrument provided by the utility model can adapt to the installation and erection of all tests; secondly, the control instrument provided by the utility model has the characteristics of simplicity: the control instrument is in The assembly is very simple, and the attitude controller can be easily replaced during the test to meet different test conditions; again, the control instrument provided by the utility model has the characteristics of high precision: because the electromagnet Its magnetism disappears, so the test object will not be disturbed by the outside world like the method of cutting the suspension wire at the moment of release. In addition, the accuracy of 3D printing can reach 0.1mm, so the entire control instrument can reach the accuracy of 0.1mm; finally, The control instrument provided by the utility model has the characteristics of stability: due to the various advantages mentioned above, the use of the control instrument provided by the utility model can improve the repeatability of the test, so it has stability.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is a schematic diagram of the overall explosion structure of the utility model.

Fig. 3 is a schematic diagram of the first form of the attitude controller of the present invention.

Fig. 4 is a schematic diagram of the second form of the attitude controller of the present invention.

Fig. 5 is a schematic diagram of a third configuration of the attitude controller of the present invention.

Fig. 6 is a schematic diagram of the test state of the utility model.

detailed description

The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate this embodiment, certain components in the accompanying drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art It is understandable that some well-known structures and descriptions thereof may be omitted in the drawings. The positional relationship described in the drawings is for illustrative purposes only, and should not be construed as a limitation on this patent.

As shown in Figures 1, 2, and 6, a high-precision free-release control instrument based on an electromagnet includes an electromagnet 1, a clip 2 connected to the electromagnet 1, and can be designed into different postures according to different test requirements. An attitude controller 3, a height adjuster 4 connected to the attitude controller 3, a DC stabilized power supply 5 and a switch device 6 connected to the electromagnet 1.

In this embodiment, the posture controller 3 includes a controller main body 31, a locking groove 32 provided in the controller main body 31, and a direction positioning part 33 arranged on the controller main body 31 that can face in different directions. The locking groove 32 and the The clip 2 is clamped and fixed, and the direction positioning part 33 is connected with the height adjuster 4 . A positioning rod 8 is also connected to the direction positioning part 33 , a cavity is provided inside the height adjuster 4 , and the height adjuster 4 is sleeved on the positioning rod 8 through the cavity. The clamp 2 includes a clamping portion 21 and a connecting portion 22 disposed under the clamping portion 21 , the clamping portion 21 is connected to the clamping groove 32 , and the connecting portion 22 is connected to the electromagnet 1 .

The shape of the positioning rod 8 is adapted to the shape of the cavity inside the height adjuster 4 , and the height adjuster 4 can be completely sleeved on the positioning rod 8 . The positioning rod 8 is fixed to the direction positioning part 33 , the engaging part 21 can slide along the engaging groove 32 , and the engaging part 21 can be engaged inside the engaging groove 32 . The connection between clamp 2 and attitude controller 3 and the connection between attitude controller 3 and height adjuster 4 are all connected by tightening bolt 7 .

As shown in Fig. 3-5, there are three different attitude sensors, and the inclination angles of the direction positioning part 33 are different. And it can be seen that its inclination direction in space is arbitrary.

In this embodiment, the instrument is manufactured by a 3D printer, and what is suspended at the bottom of the electromagnet is the test object used for the free release test, as shown in FIG. 6 .

A control method for a high-precision free-release control instrument based on an electromagnet, which includes the following steps:

A． Make each component of the control instrument: according to the specific requirements of the test, make several specific attitude controllers and other components. In this example, a 3D printer is used to make each component;

B. Assemble each component: Assemble each component according to Figure 1;

C. Test process: Turn on the switch, the electromagnet is magnetic when it is energized, then hang the test object (iron or with a patch or magnetic strip) on the electromagnet; turn off the switch, the electromagnet is powered off and the magnetism disappears , the test object is accurately and stably separated from the electromagnet;

D. Replacing the attitude controller: replace different attitude controllers to conduct tests in other working conditions, as shown in Figure 3-5.

Apparently, the above-mentioned embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manner of the present utility model. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. All modifications, equivalent replacements and improvements made within the spirit and principles of the utility model shall be included in the protection scope of the claims of the utility model.

Claims (5)

1. a kind of free release control instrument of high accuracy based on electromagnet, it is characterised in that including electromagnet（1）, connection electricity Magnet（1）Fastener（2）, the attitude controller of different postures can be designed to according to different test requirements documents（3）, be connected to appearance State controller（3）On height adjuster（4）With electromagnet（1）Connected D.C. regulated power supply（5）And switching device（6）.

2. a kind of free release control instrument of high accuracy based on electromagnet according to claim 1, it is characterised in that：Institute The attitude controller stated（3）Including controller main body（31）, located at controller main body（31）Interior buckling groove（32）, located at control Device main body（31）On can be towards the direction location division of different directions（33）, buckling groove（32）With fastener（2）Connect and fix, direction is fixed Position portion（33）With height adjuster（4）Connection.

3. a kind of free release control instrument of high accuracy based on electromagnet according to claim 2, it is characterised in that：Institute The direction location division stated（33）On be also associated with locating rod（8）, described height adjuster（4）Inside is provided with cavity, and height is adjusted Save device（4）Locating rod is socketed in by cavity（8）On.

4. a kind of free release control instrument of high accuracy based on electromagnet according to claim 3, it is characterised in that：Institute The fastener stated（2）Including Access Division（21）, located at Access Division（21）Under connecting portion（22）, Access Division（21）With buckling groove（32） Connection, connecting portion（22）With electromagnet（1）Connection.

5. according to a kind of any described free release control instrument of high accuracy based on electromagnet of Claims 1-4, its feature It is：Described fastener（2）With attitude controller（3）Connection and attitude controller（3）With height adjuster（4）Connection All it is by tightening bolt（7）Connection.