CN108818092A - Combined electrical permanent magnetic chuck - Google Patents

Abstract

The invention discloses a combined electric permanent magnet chuck, which comprises a workbench and an electropermanent magnet chuck unit. The electropermanent magnet chuck unit is detachably fixed on the workbench. Groups, multiple groups of electric permanent magnet chuck units are connected as a whole through the detachable combination of the circuit. The combined electric permanent magnetic chuck of the present invention has the advantages of simple structure, strong practicability, energy saving and environmental protection, and the shape, size and position can be adjusted according to the workpiece to be clamped.

Description

Combined electric permanent magnetic chuck

technical field

The invention relates to an electric permanent magnetic clamp, in particular to a combined electric permanent magnetic sucker.

Background technique

As an economical and environment-friendly clamping device, the electro-permanent magnetic chuck has been widely used in the machinery manufacturing industry. The electric permanent magnetic chuck not only has the safety characteristics of the permanent magnetic chuck, but also has the characteristics of energy saving and environmental protection. It only consumes electric energy within 0.1 seconds to 0.6 seconds of magnetization and demagnetization. It is a very practical magnetic clamping tool. However, ordinary electro-permanent magnetic chucks need to be customized according to the shape of the machine tool table and the workpiece to be clamped, while the production cost of customized electro-permanent magnetic chucks is high and the production time is relatively long; and the customized single-type chuck can clamp workpieces The size and shape are limited and cannot be used for clamping other workpieces.

Contents of the invention

The problem to be solved by the present invention is to provide a combined electro-permanent magnetic chuck with simple structure, strong practicability, energy saving and environmental protection, and whose shape, size and position can be adjusted according to the workpiece to be clamped.

In order to solve the problems of the technologies described above, the technical solution proposed by the present invention is:

A combined electro-permanent magnetic chuck, including a worktable and an electro-permanent magnetic chuck unit, the electro-permanent magnetic chuck unit is detachably fixed on the workbench, and the electro-permanent magnetic chuck unit is not less than one group, and multiple groups The electro-permanent magnetic chuck unit is connected as a whole through a detachable circuit combination.

As a further improvement of the above technical solution:

The electro-permanent magnetic chuck units can be disassembled from the workbench in a single group.

Both opposite ends of the electro-permanent magnetic chuck unit are provided with magnetic poles, and the electro-permanent magnetic chuck unit is detachably adsorbed and fixed on the workbench through the magnetic poles on one of the end surfaces.

The electro-permanent magnetic chuck unit includes a housing, the housing includes a middle plate and two end shells, the two end shells are respectively arranged on the two end faces of the middle plate, and the magnetic poles are embedded in the outer shell of the end shells. inside the end face.

The electro-permanent magnetic chuck unit also includes a permanent magnet, a reversible magnet and a coil. The magnetic pole and the end shell surround a cavity with an opening facing the middle plate. The reversible magnet is placed in the cavity, and the The coil is wound on the periphery of the reversible magnetic steel; the connection between the magnetic pole and the end shell is provided with an accommodating groove, and the permanent magnetic steel is arranged in the accommodating groove.

The electro-permanent magnet chuck unit is provided with an input interface and an output interface. When the multiple groups of electro-permanent magnet chuck units are arranged and combined, the input interface of the electro-permanent magnet chuck unit positioned at the head end serves as an electrical signal input port; The output interface of the permanent magnetic chuck unit is empty-connected, and each adjacent input interface and output interface are connected in sequence.

Each group of electro-permanent magnetic chuck units is connected in parallel.

In a group of electro-permanent magnetic chuck units, the coils located in one end shell are not connected to the coils located in the other end shell.

There are no less than four wires between the input interface and the output interface of the electro-permanent magnetic chuck unit, the coil in the one end shell is connected in parallel to two of the wires, and the coil in the other end shell The coil is connected in parallel to the other two wires.

There is no less than one magnetic pole embedded on the end shell.

Compared with the prior art, the present invention has the advantages of:

The combined electro-permanent magnetic chuck of the present invention includes a workbench matched with the workpiece to be clamped and multiple sets of electro-permanent magnetic chuck units. The electro-permanent magnetic chuck unit is detachably fixed on the workbench. When different workpieces need to be clamped , it is not necessary to customize the entire electro-permanent magnetic chuck, only need to customize the work platform of the corresponding shape, and install the required number of electro-permanent magnetic chuck units, the production cost is low and the production efficiency is high; and when one of the groups or When multiple sets of electro-permanent magnet chuck units are damaged, there is no need to replace the entire electro-permanent magnet chuck, only the damaged electro-permanent magnet chuck units need to be removed and replaced, which avoids waste of materials and has strong practicability; and the electro-permanent magnet chuck of the present invention The unit can increase or decrease the number of groups according to the required magnetic force, avoiding the waste of electric energy, and has the advantages of energy saving and environmental protection.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of combined electric permanent magnetic sucker of the present invention;

Fig. 2 is the schematic diagram of the three-dimensional structure of the electro-permanent magnet chuck unit in the combined electro-permanent magnet chuck of the present invention;

Fig. 3 is the sectional structure schematic diagram of the electro-permanent magnet chuck unit in the combined electro-permanent magnet chuck of the present invention;

Fig. 4 is a schematic diagram of the connection circuit of the electro-permanent magnet chuck unit in the combined electro-permanent magnet chuck of the present invention.

Legend: 1. Workbench; 2. Electric permanent magnet chuck unit; 21. Shell; 211. Magnetic pole; 212. End shell; 213. Middle plate; 22. Permanent magnet steel; 23. Reversible magnet steel; 24. coil; 25, input interface; 26, output interface.

Detailed ways

In order to facilitate the understanding of the present invention, the invention will be described more comprehensively and in detail below in conjunction with the accompanying drawings and preferred embodiments, but the protection scope of the present invention is not limited to the following specific embodiments.

Example:

As shown in Figures 1 and 2, the combined electro-permanent magnetic chuck of this embodiment includes a workbench 1 and an electro-permanent magnetic chuck unit 2, the electro-permanent magnetic chuck unit 2 is detachably fixed on the workbench 1, and the electro-permanent magnetic chuck unit There is not less than one set of magnetic chuck units 2 , multiple groups of electric permanent magnetic chuck units 2 are connected as a whole through detachable circuit combinations, and the electric permanent magnetic chuck units 2 can be disassembled from the workbench 1 in a single group. The combination of this embodiment makes it unnecessary to customize the entire electro-permanent magnetic chuck when different workpieces need to be clamped during the use of the electro-permanent magnetic chuck. It is only necessary to customize and produce the workbench 1 of the corresponding shape, and assemble the required number of groups. The electro-permanent magnetic chuck unit 2 is enough, the production cost is low, and the production efficiency is high; and when one or more sets of electro-permanent magnetic chuck units 2 are damaged, there is no need to replace the entire electro-permanent magnetic chuck, only the damaged ones need to be removed and replaced. The electro-permanent magnetic chuck unit 2 is enough to avoid waste of materials and has strong practicability; and the electro-permanent magnetic chuck unit 2 can increase or decrease the number of groups according to the required magnetic force, avoiding waste of electric energy, and has the advantages of energy saving and environmental protection. Figure 1 shows the combined electro-permanent magnetic chuck to be tested. The workbench 1 is rectangular, and six sets of electro-permanent magnetic chuck units 2 are arranged on it. When the required magnetic force is small, several groups of electro-permanent magnetic chucks can also be removed. Unit 2.

In this embodiment, as shown in FIG. 3 , magnetic poles 211 are provided on opposite ends of the electro-permanent magnetic chuck unit 2 , and the electro-permanent magnetic chuck unit 2 is detachably adsorbed and fixed on the workbench 1 through the magnetic poles 211 on one of the end faces. On the other hand, the magnetic pole 211 on the other end surface is used to absorb the workpiece to be clamped, and the adsorption operation of the two end surfaces of the electro-permanent magnetic chuck unit 2 can be performed separately.

In this embodiment, the electro-permanent magnetic chuck unit 2 includes a housing 21, a permanent magnet steel 22, a reversible magnetic steel 23 and a coil 24, the housing 21 includes a middle plate 213 and two end shells 212, and the two end shells 212 They are respectively arranged on both ends of the middle plate 213. The magnetic poles 211 are embedded in the outer end surfaces of the end shells 212, and the magnetic poles 211 and the end shells 212 form a cavity with an opening facing the middle plate 213. The reversible magnetic steel 23 is placed in the cavity Among them, the coil 24 is wound around the periphery of the reversible magnetic steel 23; the connection between the magnetic pole 211 and the end shell 212 is provided with an accommodating groove, and the permanent magnet steel 22 is arranged in the accommodating groove.

When it is necessary to adjust the position or adsorption state of the electro-permanent magnetic chuck unit 2 on the workbench 1, adjust the current direction in the coil 24 of the electro-permanent magnet chuck unit 2 and the contact end surface of the workbench 1, so that the corresponding magnetic pole 211 is displayed externally It can be non-magnetic or magnetic; when it is necessary to adjust the adsorption state of the workpiece, correspondingly adjust the current direction in the coil 24 of the electro-permanent magnetic chuck unit 2 and the contact end surface of the workpiece, so that the corresponding magnetic pole 211 shows no magnetism to the outside. Or it only needs to be magnetic; since the external adsorption states of the magnetic poles 211 on the two end faces are controlled by the coils 24 below them, the adsorption operation can be individually controlled. For the convenience of the operator, a two-stage switch can be set in the external circuit, and the power supply is connected to the coil 24 on the two end faces respectively by its designated position.

In this embodiment, the electro-permanent magnet chuck unit 2 is provided with an input interface 25 and an output interface 26. When multiple groups of electro-permanent magnet chuck units 2 are arranged and combined, the input interface 25 of the electro-permanent magnet chuck unit 2 at the head end serves as an electrical signal Input port; the output interface 26 of the electro-permanent magnet chuck unit 2 at the tail end is empty, and each adjacent input interface 25 and output interface 26 are connected in sequence; as shown in Figure 4, each group of electro-permanent magnet chucks The external units 2 are connected in series through the input interface 25 and the output interface 26, and their internal circuits are connected in parallel. This connection mode makes each group of electro-permanent magnetic chuck units 2 have no influence on each other, and avoids when one group fails. , affect other groups to attract workpieces to be clamped, and the external form is series connection, which can greatly reduce the complexity of connection and facilitate the operator to perform combined connection.

In this embodiment, in a group of electro-permanent magnetic chuck units 2, the coil 24 located in one end shell 212 is not connected to the coil 24 located in the other end shell 212. There are no less than four wires between the input interface 25 and the output interface 26 of the unit 2, the coil 24 in one end shell 212 is connected in parallel to two of the wires, and the coil 24 in the other end shell 212 is connected in parallel Connected to the other two wires, that is, the charging and demagnetization of the magnetic poles 211 in the two end shells 212 do not interfere with each other, so that the connection and disassembly of the electro-permanent magnetic chuck unit 2 and the worktable 1 and the clamping and loosening of the workpiece They do not affect each other, avoiding dangerous situations, and the operation is simple and convenient.

In this embodiment, no less than one magnetic pole 211 is embedded on the end shell 212 , and the polarity of the electromagnetic field generated by the coil 24 below the adjacent magnetic pole 211 is opposite.

The above descriptions are only preferred implementations of the present invention, and the scope of protection of the present invention is not limited to the above examples. For those skilled in the art, improvements and transformations obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.

Claims (10)

1. a kind of combined electrical permanent magnetic chuck, it is characterised in that：Including workbench (1) and electric permanent-magnet suction disc unit (2), the electricity Permanent magnetic chuck unit (2) is detachably secured on workbench (1), and the electric permanent-magnet suction disc unit (2) is no less than one group, multiple groups Electric permanent-magnet suction disc unit (2) is connected as one by the detachable combination of circuit.

2. combined electrical permanent magnetic chuck according to claim 1, it is characterised in that：Electric permanent-magnet suction disc unit (2) energy Single group is dismantled from workbench (1).

3. combined electrical permanent magnetic chuck according to claim 1 or 2, it is characterised in that：The electric permanent-magnet suction disc unit (2) Opposite both ends of the surface are equipped with magnetic pole (211), and the electric permanent-magnet suction disc unit (2) passes through the magnetic pole on one of end face (211) dismountable absorption is fixed on workbench (1).

4. combined electrical permanent magnetic chuck according to claim 3, it is characterised in that：Electric permanent-magnet suction disc unit (2) packet It includes shell (21), the shell (21) includes intermediate plate (213) and two end shells (212), described two end shells (212) point Not She Yu intermediate plate (213) both ends of the surface, in the outer end face of the magnetic pole (211) insertion end shell (212).

5. combined electrical permanent magnetic chuck according to claim 4, it is characterised in that：The electric permanent-magnet suction disc unit (2) is also Including permanent-magnet steel (22), reversible magnet steel (23) and coil (24), the magnetic pole (211) and end shell (212) surround an opening court To the cavity of intermediate plate (213), the reversible magnet steel (23) is placed in cavity, and the coil (24) is wound in reversible magnet steel (23) Periphery；The junction of the magnetic pole (211) and end shell (212) is equipped with accommodation groove, and the permanent-magnet steel (22) is set to accommodating In slot.

6. combined electrical permanent magnetic chuck according to claim 5, it is characterised in that：On the electric permanent-magnet suction disc unit (2) Equipped with input interface (25) and output interface (26), when multiple groups electric permanent-magnet suction disc unit (2) permutation and combination, positioned at head end The input interface (25) of electric permanent-magnet suction disc unit (2) is used as electric signal input port；Positioned at the electric permanent-magnet suction disc unit (2) of tail end Output interface (26) sky connects, between each adjacent input interface (25) sequentially connect with output interface (26).

7. combined electrical permanent magnetic chuck according to claim 6, it is characterised in that：Each group electric permanent-magnet suction disc unit (2) it Between to be connected in parallel.

8. combined electrical permanent magnetic chuck according to claim 6, it is characterised in that：In one group of electric permanent-magnet suction disc unit (2), Coil (24) in an end shell (212) is not connected to mutually with the coil (24) being located in another end shell (212).

9. combined electrical permanent magnetic chuck according to claim 8, it is characterised in that：The electric permanent-magnet suction disc unit (2) It include no less than four conducting wires between input interface (25) and output interface (26), the line in one end shell (212) Circle (24) is connected in parallel on wherein two conducting wires, and the coil (24) in another described end shell (212) is connected in parallel in separately On outer two conducting wires.

10. combined electrical permanent magnetic chuck according to claim 4, it is characterised in that：It is embedded on the end shell (212) Magnetic pole (211) is no less than one.