Electromagnetic driving module

Abstract

The utility model discloses an electromagnetic driving module. The electromagnetic driving module comprises a mounting base, a winding drum coil is arranged on one side of the mounting base, a linear bearing is arranged on the other side of the mounting base, a telescopic core rod extending into the winding drum coil penetrates through the linear bearing, the mounting base comprises a bottom plate, and two first bosses are integrally formed on one side of the bottom plate; a first boss is arranged on one side of the bottom plate, a first arc-shaped groove used for bearing a reel coil is formed in the top face of the first boss, a hoop used for fixing the reel coil is arranged above the first arc-shaped groove, a second arc-shaped groove used for positioning a linear bearing is formed in the other side of the bottom plate, the first arc-shaped groove and the second arc-shaped groove are coaxial, and a second boss is arranged at at least one end of the second arc-shaped groove. The second boss is used for fixing the linear bearing, the second boss and the bottom plate are integrally formed, and a through hole allowing the telescopic core rod to penetrate through is formed in the second boss. The utility model solves the problems of large assembly difficulty and low production efficiency in the prior art.

Description

Technical Field

[0001] The utility model relates to the field of home furnishing manufacturing, in particular to an electromagnetic driving module. Background Art

[0002] The existing Chinese utility model patent with publication number CN218355243U and name "An electromagnetically driven swinging iron frame" discloses a swinging driving device including a bottom plate fixed to a base, two symmetrical reels arranged on the rear side of the bottom plate, front and rear sides of the reels fixedly connected to mounting seats, the mounting seats fixedly connected to the bottom plate, the outer circumference of the reel is wrapped with a conductive coil, a telescopic core rod is arranged on the front side of the conductive coil, the front side of the telescopic core rod is slidably connected to two spaced guide seats, the guide seats are fixed to the bottom plate, three guide wheels are pivotally connected to the inner side of the guide seats, and the three guide wheels evenly distributed on the circumference cooperate to clamp the telescopic core rod. Combined with the drawings in the disclosed specification, it can be determined that the reel is fixed to the base plate through two mounting seats, and the telescopic core rod is mounted on the base plate through two guide seats. Since the mounting seat and the guide seat are both split, they are fixed to the base plate by bolts during installation. However, there will be processing errors when processing the threaded holes on the base plate for installing the mounting seat and the guide seat. When installing the mounting seat and the guide seat, there will also be assembly errors due to the gap between the bolts and the mounting seat and the bolt holes on the guide seat. The above two errors will increase the difficulty of assembling each component and lead to low production efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an electromagnetic drive module which reduces assembly difficulty and improves production efficiency.

[0004] In order to achieve the above purpose, the technical solution adopted by the electromagnetic drive module of the utility model is:

[0005] An electromagnetic drive module includes a mounting base, a drum coil is arranged on one side of the mounting base, and a linear bearing is arranged on the other side. The linear bearing passes through a telescopic core rod extending into the drum coil. The mounting base includes a bottom plate, and two first bosses are integrally formed on one side of the bottom plate. A first arc groove for supporting the drum coil is provided on the top surface of the first boss, and a clamp for fixing the drum coil is provided above the first arc groove. A second arc groove for positioning the linear bearing is provided on the other side of the bottom plate. The first and second arc grooves are coaxial, and a second boss is provided at least at one end of the second arc groove for fixing the linear bearing. The second boss is integrally formed with the bottom plate, and the second boss is provided with a through hole allowing the telescopic core rod to pass through.

[0006] Preferably, the linear bearing includes a tube body, a plurality of cocircular first rolling elements are provided at one end of the tube body, and a plurality of cocircular second rolling elements are provided at the other end, the first and second rolling elements cooperate to clamp a telescopic core rod passing through the tube body, and the outer peripheral surface of the tube body is provided with four circumferentially evenly distributed positioning grooves, and ribs parallel to the axis of the tube body are formed between adjacent positioning grooves, one pair of which are horizontal ribs and the other pair of which are vertical ribs.

[0007] Preferably, the centers of the circles where the first and second rolling elements are located are both located on the vertical plane where the axis of the tube body is located, and there is a height difference of 0-1 mm between the centers of the circles where the first rolling element is located and the centers of the circles where the second rolling element is located.

[0008] Preferably, at least one vertical rib or horizontal rib is provided with an error-proofing mark.

[0009] Preferably, a plurality of threaded holes are provided at both ends of the tube body, and at least one vertical rib or horizontal rib is provided with a bolt through hole.

[0010] Preferably, the first and second rolling members are rollers pivotally connected to the tube body.

[0011] Preferably, one end of the telescopic mandrel extending out of the linear bearing is provided with a connecting mechanism, the connecting mechanism includes a rod end joint bearing fixedly connected to the telescopic mandrel, the rod end joint bearing is hinged with a transmission member through a bolt assembly, and the other end of the transmission member is provided with a bearing.

[0012] Preferably, the mounting base is formed by injection molding or die casting.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The first arc groove is used to position the winding coil, and the second arc groove is used to position the linear bearing, so that the coaxiality of the winding coil and the linear bearing can be improved, the difficulty of parts assembly is reduced, and the production efficiency is improved.

[0015] 2. The winding coil is energized to attract the telescopic mandrel to move toward one side of the winding coil. The center of gravity of the telescopic mandrel is biased toward one side of the winding. At this time, the first or second rolling element on the same side as the winding coil and below the telescopic mandrel is subject to greater friction and more severe wear. Therefore, a certain amount of height difference is set as the wear compensation amount of the rolling element, thereby increasing the service life of the linear bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the application of the electromagnetic drive module of the utility model;

[0017] Figure 2 yes Figure 1 Exploded diagram of the structure;

[0018] Figure 3 It is a top view of the electromagnetic drive module of the utility model;

[0019] Figure 4 yes Figure 3 AA section view;

[0020] Figure 5 yes Figure 3 BB cross-sectional view;

[0021] Figure 6 It is a schematic diagram of the structure of the installation base;

[0022] Figure 7 It is a schematic diagram of the structure of a linear bearing;

[0023] Figure 8 It is a top view of the linear bearing;

[0024] Fig. 9 yes Figure 8 DD cross-sectional view;

[0025] Fig.10 It is a structural diagram of the connecting mechanism.

[0026] Among them, 1 is a mounting base, 11 is a bottom plate, 12 is a first boss, 13 is a first arc groove, 14 is a second arc groove, 15 is a stop boss, 16 is a second boss, 17 is a through hole, 18 is an anti-error boss, 2 is a winding coil, 21 is an annular hanging platform, 3 is a clamp, 4 is a linear bearing, 41 is a tube body, 42 is a first rolling element, 43 is a second rolling element, 44 is a positioning groove, 45 is a horizontal rib, 46 is a vertical rib, 47 is an anti-error mark, 48 is a bolt through hole, 49 is a threaded hole, 5 is a telescopic core rod, 6 is a connecting mechanism, 61 is a rod end joint bearing, 62 is a bolt assembly, 63 is a transmission element, 64 is a bearing, and 7 is a rocker arm. DETAILED DESCRIPTION

[0027] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0028] like Figure 1-10As shown, an electromagnetic drive module includes a mounting base 1, which is formed by injection molding, and consistency and precision can be guaranteed. The mounting base includes a bottom plate 11, and two first bosses 12 are integrally formed on the right side of the bottom plate. A first arc groove 13 is provided on the top surface of the first boss, and the first arc groove supports a winding coil 2. The diameter of the first arc groove matches the diameter of the annular hanging platform 21 at the end of the winding coil. A clamp 3 is connected above the first arc groove by bolts, and the clamp is an annular clamp. The annular clamp and the first arc groove cooperate to lock the winding coil. A second arc groove 14 is provided on the left side of the bottom plate, and the first and second arc grooves are coaxial. A linear bearing 4 is placed in the second arc groove, including a tube body 41, and four cocircular and evenly distributed first rollers are installed on the left end of the tube body. The right end of the two first rolling element tube bodies is equipped with four cocircular and evenly distributed second rolling elements 43. The first and second rolling elements cooperate to clamp the telescopic core rod that passes through the tube body. The first and second rolling elements are rollers pivoted to the tube body. The centers of the circles where the first and second rolling elements are located are both located on the vertical plane where the axis of the tube body is located. The center of the circle where the second rolling element is located is 0.4mm higher than the center of the circle where the first rolling element is located. When the linear bearing is installed, the second rolling element faces the winding coil. After the winding coil is energized, the telescopic core rod slides to one side of the winding coil due to gravity, and the center of gravity of the telescopic core rod is offset to one side of the winding. At this time, the second rolling element located below the telescopic core rod is worn more, so the second rolling element is raised by 0.4mm relative to the first rolling element.4mm, as the wear compensation amount of the second rolling element under the telescopic mandrel, the end of the telescopic mandrel that extends into the winding coil is slightly tilted in the early working stage, is in a horizontal state in the middle working stage, and is tilted downward in the later working stage until the telescopic mandrel interferes with the inner wall of the winding coil, causing the linear bearing to fail. It can be seen that after the second rolling element is raised as a whole, the service life of the linear bearing can be improved without causing motion interference with the inner wall of the winding coil. Four circumferentially evenly distributed positioning grooves 44 are provided on the outer circumference of the tube body, and ribs parallel to the axis of the tube body are formed between adjacent positioning grooves, one pair is horizontal ribs 45, and the other pair is vertical ribs 46. An anti-error mark 47 is made on the vertical rib on the lower side, and the anti-error mark is an anti-error groove provided on the vertical rib , the anti-error groove is next to one side of the second rolling element. The direction of the second rolling element can be identified through the anti-error groove to avoid installation errors. Two bolt holes 48 are respectively provided on the two horizontal ribs. Four threaded holes 49 are evenly distributed on the circumference at both ends of the tube body. When the swing rod 7 swings, the telescopic mandrel will generate an oblique upward force on the tube body during the movement. The bolts in the bolt holes are used to overcome the vertical force of the telescopic mandrel, and the bolts in the threaded holes are used to overcome the horizontal force of the telescopic mandrel, thereby improving the installation firmness of the tube body. The end of the telescopic mandrel extending out of the linear bearing is installed with a connecting mechanism 6. The connecting mechanism includes a rod end joint bearing 61 fixed to the telescopic mandrel. The rod end joint bearing is hinged to a transmission member 63 through a bolt assembly 62. A bearing 64 is installed at the front end of the transmission member. The bearing is inserted into a rivet and hinged to the swing rod 7. .

[0029] The specific working process and principle of the utility model are as follows: when the winding coil is energized, a magnetic field is generated to attract the telescopic core rod to move to the right side, and the telescopic core rod drives the pendulum rod through the connecting mechanism, and the pendulum rod swings to the upper right side. At this time, the winding coil is de-energized, the magnetic field disappears, the telescopic core rod loses its gravitational force, and the pendulum rod falls back due to gravity and swings to the upper left, while driving the telescopic core rod to move to the left side through the connecting mechanism. When the pendulum rod falls back from the upper left, the winding coil can be energized again to provide gravitational force for the telescopic core rod again. At this time, the pendulum rod is subjected to both inertial force and electromagnetic gravitational force, thereby increasing its deflection amplitude. By this cycle, the deflection amplitude of the pendulum rod can be stabilized at a certain value. When the pendulum rod needs to stop swinging, when the pendulum rod swings to the upper left, the winding coil is energized, and the gravitational force received by the telescopic core rod is used as the resistance for the pendulum rod to swing to the upper left. By this cycle, the deflection amplitude of the pendulum rod is gradually reduced until the pendulum rod stays in the middle position.

[0030] The installation steps of the utility model are as follows: firstly, the linear bearing is placed on the second arc groove. When placing, the anti-error groove corresponds to the anti-error boss, and the positioning groove corresponds to the positioning boss. Then, bolts are used to tighten it. Then, the winding coil is placed on the first arc groove, fastened by a clamp, and finally, the telescopic core rod with a connecting structure is inserted.

[0031] The utility model ensures the coaxiality of the winding coil and the linear bearing by providing coaxial first and second arc grooves on the mounting base, and provides a mutually matching positioning structure between the linear bearing and the mounting base to ensure the accuracy of the installation of the linear bearing, thereby reducing the difficulty of assembling the winding coil and the linear bearing and improving production efficiency.

Claims

1. An electromagnetic drive module, comprising a mounting base, a winding coil is arranged on one side of the mounting base, and a linear bearing is arranged on the other side, wherein the linear bearing passes through a telescopic core rod extending into the winding coil, and is characterized in that: The mounting base includes a bottom plate, one side of the bottom plate is integrally formed with two first bosses, the top surface of the first boss is provided with a first arc-shaped groove for supporting the winding coil, a clamp for fixing the winding coil is arranged above the first arc-shaped groove, and the other side of the bottom plate is provided with a second arc-shaped groove for positioning the linear bearing, the first and second arc-shaped grooves are coaxial, and at least one end of the second arc-shaped groove is provided with a second boss for fixing the linear bearing, the second boss is integrally formed with the bottom plate, and the second boss is provided with a through hole for allowing the telescopic core rod to pass through.

2. The electromagnetic drive module according to claim 1, characterized in that: The linear bearing includes a tube body, one end of the tube body is provided with a plurality of cocircular first rolling members, and the other end is provided with a plurality of cocircular second rolling members, the first and second rolling members cooperate to clamp a telescopic core rod passing through the tube body, the outer peripheral surface of the tube body is provided with four circumferentially evenly distributed positioning grooves, and ribs parallel to the axis of the tube body are formed between adjacent positioning grooves, one pair of which are horizontal ribs and the other pair of which are vertical ribs.

3. The electromagnetic drive module according to claim 2, characterized in that: The centers of the circles where the first and second rolling elements are located are both located on the vertical plane where the axis of the tube body is located, and there is a height difference of 0-1mm between the centers of the circles where the first rolling element is located and the centers of the circles where the second rolling element is located.

4. The electromagnetic drive module according to claim 3, characterized in that: At least one vertical rib or horizontal rib is provided with an error-proofing mark.

5. The electromagnetic drive module according to claim 3, characterized in that: A plurality of threaded holes are provided at both ends of the tube body, and at least one vertical rib or horizontal rib is provided with a bolt through hole.

6. The electromagnetic drive module according to claim 3, characterized in that: The first and second rolling members are both rollers pivotally connected to the tube body.

7. The electromagnetic drive module according to claim 1, characterized in that: The end of the telescopic mandrel extending out of the linear bearing is provided with a connecting mechanism, the connecting mechanism includes a rod end joint bearing fixedly connected to the telescopic mandrel, the rod end joint bearing is hinged with a transmission member through a bolt assembly, and the other end of the transmission member is provided with a bearing.

8. The electromagnetic driving module according to claim 1, characterized in that: The mounting base is formed by injection molding or die casting.

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