阅读说明：本技术 电磁装置用磁心及具有该电磁装置用磁心的电磁装置 (Magnetic core for electromagnetic device and electromagnetic device having the same ) 是由 葛楠 王立明 黄蕾 于 2020-12-22 设计创作，主要内容包括：本发明适用于电磁夹具技术领域,提供了电磁装置用磁心及具有该电磁装置用磁心的电磁装置,包括：包括:两相对设立的立柱,所述立柱设有横向段；横杆,其固定连接两个所述立柱；对应所述横向段的止回杆,其设有铰接端和自由端,所述铰接端铰接所述横向段。借此,本发明能防止意外断电时,电磁夹具因磁力消失造成夹具失效,结构简单。(The invention is suitable for the technical field of electromagnetic clamp, has provided the magnetic core for electromagnetic device and electromagnetic device with magnetic core for electromagnetic device, including: comprises two oppositely arranged upright posts, wherein the upright posts are provided with transverse sections; the cross bar is fixedly connected with the two upright posts; the non-return rod corresponding to the transverse section is provided with a hinged end and a free end, and the hinged end is hinged with the transverse section. Therefore, the electromagnetic clamp can prevent the electromagnetic clamp from losing effectiveness due to the disappearance of magnetic force when power is cut off accidentally, and has a simple structure.)

1. A magnetic core for an electromagnetic device, comprising:

the two upright columns are oppositely arranged and provided with transverse sections;

the cross bar is fixedly connected with the two upright posts;

the non-return rod corresponding to the transverse section is provided with a hinged end and a free end, and the hinged end is hinged with the transverse section.

2. A magnetic core for an electromagnetic device according to claim 1, wherein said lateral section is located between two of said legs.

3. An electromagnetic device having a magnetic core for an electromagnetic device according to any one of claims 1 to 2, characterized by further comprising:

the shell is provided with a guide groove, and a limiting block is arranged on the guide groove;

the suction plate corresponds to the limiting guide groove, a long rod is arranged in the middle of the suction plate, and the suction plate is elastically connected with the shell;

the releasing assembly comprises a rotating rod, a rocker and two releasing rods, the rotating rod is connected with the rocker in a shaft mode, one end of each releasing rod is hinged to the rotating rod, the other end of each releasing rod is hinged to the non-return rod, the rotating rod is elastically connected with the shell, and the rocker is located on the outer side of the shell;

the magnetic core is located inside the housing.

4. The electromagnetic device according to claim 3, wherein the suction plate is provided with an external interface.

5. The electromagnetic device according to claim 3, wherein the long rod is provided with an anti-slip structure.

6. The electromagnetic device according to claim 5, wherein the anti-slip structure is a toothed structure.

7. The electromagnetic device according to claim 3, characterized in that the free end of the non-return rod is provided with a unidirectional rotation mechanism.

8. The electromagnetic device according to claim 7, wherein the one-way rotating mechanism comprises a one-way clutch and a gear, wherein an inner ring of the one-way clutch is rotatably connected with the free end, and an outer ring of the one-way clutch is fixedly connected with the gear.

Technical Field

The present invention relates to the field of electromagnetic clamping devices, and more particularly, to a magnetic core for an electromagnetic device and an electromagnetic device having the same.

Background

The magnetic force of the electromagnetic clamp can be controlled by the power-on and power-off because of the existence of the magnetism of the electromagnetic clamp, the strength of the magnetism of the electromagnetic clamp can be controlled by the strength of current, and the north and south poles of the electromagnetic clamp can be controlled by changing the direction of the current, so that the electromagnetic clamp is convenient to use. However, when power is cut off accidentally, the electromagnetic clamp is automatically demagnetized, and the magnetic force disappears, so that the clamping force disappears, the clamp fails, and the machining precision of the workpiece is affected or the workpiece is directly scrapped.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

Disclosure of Invention

In view of the above-described drawbacks, an object of the present invention is to provide a magnetic core for an electromagnetic device and an electromagnetic device having the same, which can prevent loosening of a jig when an unexpected power failure occurs and ensure reliability of the jig.

In order to achieve the above object, the present invention provides a magnetic core for an electromagnetic device, comprising:

the two upright columns are oppositely arranged and provided with transverse sections;

the cross bar is fixedly connected with the two upright posts;

the non-return rod corresponding to the transverse section is provided with a hinged end and a free end, and the hinged end is hinged with the transverse section.

According to the magnetic core for an electromagnetic device of the present invention, the lateral section is located between the two columns.

The present invention also provides an electromagnetic device having the magnetic core for an electromagnetic device, further comprising:

the shell is provided with a guide groove, and a limiting block is arranged on the guide groove;

the suction plate corresponds to the limiting guide groove, a long rod is arranged in the middle of the suction plate, and the suction plate is elastically connected with the shell;

the releasing assembly comprises a rotating rod, a rocker and two releasing rods, the rotating rod is connected with the rocker in a shaft mode, one end of each releasing rod is hinged to the rotating rod, the other end of each releasing rod is hinged to the non-return rod 13, the rotating rod is elastically connected with the shell, and the rocker is located on the outer side of the shell;

the magnetic core is located inside the housing.

According to the electromagnetic device with the magnetic core for the electromagnetic device, the attraction plate is provided with an external interface.

According to the electromagnetic device having the magnetic core for the electromagnetic device of the present invention, the long rod is provided with an anti-slip structure.

According to the electromagnetic device having the magnetic core for an electromagnetic device of the present invention, the anti-slip structure is a tooth-shaped structure.

According to the electromagnetic device having the magnetic core for the electromagnetic device of the present invention, the free end of the check rod is provided with the unidirectional rotation mechanism.

According to the electromagnetic device having the magnetic core for the electromagnetic device of the present invention, the one-way rotating mechanism includes the one-way clutch and the gear, the inner ring of the one-way clutch is rotatably connected to the free end, and the outer ring of the one-way clutch is fixedly connected to the gear.

The invention utilizes the magnetic core with a special structure, the non-return rod is reserved on the magnetic core to provide structural support for the connection of subsequent mechanical structures, and meanwhile, the magnetic core is arranged in the shell, and the attraction plate with the long rod is additionally arranged, so that the attraction plate can keep an attraction state after being electrified, the attraction plate can not be accidentally separated due to accidental power failure, and the attraction reliability and the attraction continuity are improved.

Drawings

FIG. 1 is a schematic view of the structure of a magnetic core of the present invention;

FIG. 2 is a schematic diagram of an external structure of the electromagnetic device of the present invention;

FIG. 3 is a schematic diagram of the structure of the electromagnetic apparatus of the present invention;

FIG. 4 is a schematic front view of an electromagnetic apparatus of the present invention;

FIG. 5 is a schematic view of the fitting structure of the check rod and the long rod of the present invention;

FIG. 6 is a schematic structural diagram of another embodiment of an electromagnetic apparatus of the present invention;

FIG. 7 is a schematic view of a gear and rod assembly of another embodiment of the electromagnetic device of the present invention;

in the figure, 1-magnetic core, 11-cross bar, 12-upright post, 121-transverse segment, 13-check bar, 131-free end, 132-hinged end, 14-coil, 15-one-way rotating mechanism, 151-one-way clutch, 152-gear, 2-shell, 21-guide groove, 22-limiting block, 3-attraction plate, 31-long bar, 311-rack structure, 32-external interface, 4-release component, 41-release bar, 42-rotary bar and 43-rocker bar.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, the present invention provides a magnetic core for an electromagnetic device. The magnetic core 1 for an electromagnetic device includes:

the anti-return device comprises two upright columns 12, a cross rod 11 and two check rods 13, wherein the two upright columns 12 are fixedly connected to two sides of the cross rod 11, each upright column 12 is provided with a transverse section 121, the transverse sections 121 are oppositely arranged, each check rod 13 comprises a free end 131 and a hinged end 132, and the hinged end 132 is hinged with the transverse section 121; the post 12 is wound around the coil 14 to create suction and the check rod 13 at the end of the transverse segment 121 provides structural support for subsequent mechanisms.

Referring to fig. 2 and 3, the present invention provides an electromagnetic device having a magnetic core for the electromagnetic device, the device including: magnetic core 1, casing 2, suction plate 3 and release subassembly 4, the syntropy coil 14 of having twined on the magnetic core 1, be equipped with guide slot 21 on the casing 2, be equipped with stopper 22 on the guide slot 21, suction plate 3 slides from top to bottom along guide slot 21, stopper 22 plays limiting displacement to suction plate 3, stopper 22 adopts the removable connection with guide slot 21 to can adjust the range of motion of suction plate 3 from top to bottom. The size of the suction plate 3 is slightly smaller than the opening size of the guide groove 21, so that the suction plate 3 can move smoothly and cannot rotate, the long rod 31 is arranged in the middle of the suction plate 3, the suction plate 3 is elastically connected with the magnetic core 1, and a spring is preferably selected; release assembly 4 includes two release levers 41, rotary rod 42 and rocker 43, release lever 41 both ends articulate non return pole 13 and rotary rod 42 respectively, release assembly 4 is located stock 31 one side, rocker 43 is located the casing 2 outside, rotary rod 42 and release lever 41 are located the casing 2 inboard, rocker 43 hub connection rotary rod 42, through torsional spring connection between rotary rod 42 and the casing 2, provide the revolving force, under the effect of torsional spring, two non return poles 13 automatic butt stock 31 to maintain the normality.

Referring to fig. 4, when the suction plate 3 is down, stock 31 downstream, overcome torsional spring torsion, promote non return pole 13 and put down, when the suction plate 3 goes upward, stock 31 upward movement, non return pole 13 butt is on stock 31 under the torsional spring effect, have the pendulum motion trend, two non return poles 13 can press from both sides tight stock 31, prevent stock 31's upward movement, and the clamp force is provided by non return pole 13 rotation in opposite directions and torsional spring, and the strength is huge, thereby stock 31 can only be down can not go upward, have the locking function.

When the rocking lever 43 is rotated at the outside, the release lever 41 is supported outward the check lever 13 by the rotating lever 42 so that the check lever 13 is separated from the long lever 31, and the long lever 31 is not locked and can be freely moved according to the stress.

Referring to fig. 5, further, as a preferred embodiment of the present invention, the long rod 31 is provided with an anti-slip structure, and the anti-slip structure is preferably a rack structure 311, so that the contact between the check rod 13 and the long rod 31 is more reliable, and the anti-loose effect is better.

Referring to fig. 6, further, the free end 131 of the check rod 13 is provided with the one-way rotation mechanism 15, the one-way rotation mechanism 15 abuts against the long rod 31 under the action of the release lever 41, the one-way rotation mechanism 15 changes the sliding friction into the rotating friction through one-way rotation, the abrasion between the check rod 13 and the long rod 31 is reduced, and the check effect is better.

Referring to fig. 7, further, the one-way rotating mechanism 15 includes a one-way clutch 151 and a gear 152, the inner ring of the one-way clutch 151 is rotatably connected to the free end 131 of the check rod 13, the outer ring of the one-way clutch 151 is fixedly connected to the gear 152, and the rotating direction of the one-way clutch 151 is adapted to the downward direction of the long rod 31, so that the gear 152 is rotatably engaged with the rack structure 311, sliding friction is changed into rotating friction, when the long rod 31 moves upward, the contact area between the gear 152 and the rack structure 311 is larger, and the check effect is better.

Further, as a preferred embodiment of the present invention, the suction plate 3 is provided with an external interface 32, which can provide a power source with a self-locking function to the outside to prevent the fixture from falling off accidentally due to power failure.

When the coil 14 is not energized, the suction plate 3 is spaced from the magnetic core 1 by the spring, and the check rod 13 abuts against the long rod 31 by the torsion spring on the rotating rod 42.

When the electromagnetic device is used, firstly, the coil 14 is electrified to generate magnetic force to attract the attraction plate 3 to move downwards to be attached to the magnetic core 1, the long rod 31 on the attraction plate 3 moves downwards, the rack structure 311 on the long rod 31 pushes the gear 152 to rotate, and after the state is stable, the attraction plate 3 is firmly attracted to the magnetic core 1.

When power is unexpectedly cut off, the coil 14 is powered off, the magnetic force disappears, the attraction plate 3 is under the action of the spring, the attraction plate 3 tends to reset and pop up, the long rod 31 pops up along the trend, the gear 152 is prohibited from reversing under the action of the one-way clutch 151, the gear 152 is meshed with the rack structure 311 to prevent the long rod 31 from moving, the long rod 31 pops up and also can be subjected to extrusion forces of the two gears 152, the popping up force is in direct proportion to the extrusion forces, the long rod 31 can be firmly locked, and the attraction plate 3 is prevented from moving upwards.

When the electromagnetic device is used and is determined to be loosened, the coil 14 is powered off, the rocker 43 is rotated to separate the gear 152 from the rack structure 311, the attraction plate 3 is lifted under the action of the spring, and the long rod 31 is not hindered by the gear 152 and does not influence the lifting of the attraction plate 3. When the suction plate 3 is reset, the rocker 43 is reset under the action of the torsion spring, and the gear 152 is engaged with the rack structure 311.

In conclusion, the magnetic core with a special structure is utilized, the non-return rod is reserved on the magnetic core to provide structural support for the connection of a subsequent mechanical structure, meanwhile, the magnetic core is arranged in the shell, and the attraction plate with the long rod is additionally arranged, so that the attraction plate can keep in an attraction state after being electrified, the attraction plate cannot be accidentally separated due to accidental power failure, and the reliability and the continuity of attraction are improved.

In the description of the present invention, it is to be understood that the terms "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.