Electric control permanent magnetic chuck

Abstract

The utility model discloses an electric control permanent magnetic chuck which comprises reversible magnetic steel and a protection device. According to the utility model, through the arrangement of the protection device, namely through the combination of the protection plate and the wear-resisting plate, the magnetic pole and the cargo main body can be separated and magnetically attracted, the magnetic pole is prevented from being directly contacted with the cargo main body, the wear rate of the magnetic pole is reduced, and the safety of magnetic attraction hoisting is ensured; the connecting frame can indirectly move the pressing frame up and down, the ball and the upper end of the connecting rod are oppositely clamped or conveniently locked, and therefore the protection plate and the magnetic pole can be rapidly disassembled and assembled and conveniently overhauled and replaced, and the advantages that the whole protection plate is rapidly disassembled and assembled, and convenience and rapidness in separation and magnetic attraction use are achieved are achieved.

Description

Technical Field

[0001] The utility model relates to the relevant field of permanent magnetic chucks, in particular to an electrically controlled permanent magnetic chuck. Background Art

[0002] Permanent magnetic chuck, also known as magnetic chuck, is a magnetic fixture widely used in lifting equipment technology. It can greatly improve the clamping efficiency of magnetic steel materials. The permanent magnetic chuck uses high-performance rare earth material NdFeB (N>40) as the core, and then changes the magnetic system of NdFeB inside the chuck to achieve the purpose of holding or releasing the workpiece.

[0003] Most of the electric permanent magnetic chucks used today are in direct contact with the adsorbed objects. After long-term use, the electric permanent magnetic chucks are prone to wear. Over time, after the outer surface of the electric permanent magnetic chucks is worn, it is easy to cause the overall adsorption force of the electric permanent magnetic chucks to be affected, that is, the adsorption force of the electric permanent magnetic chucks is reduced, so that when the electric permanent magnetic chucks are used for adsorption and lifting of materials, there is a risk of falling from high altitude;

[0004] Therefore, it is necessary to adjust the structure of the electric-controlled permanent magnetic chuck so that the magnetic end of the electric-controlled permanent magnetic chuck does not directly contact the material, and the auxiliary contact end can be easily disassembled and replaced. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides an electrically controlled permanent magnetic chuck.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an electrically controlled permanent magnetic suction cup, comprising a reversible magnetic steel, a coil, an irreversible magnetic steel, a magnetic conductive plate, a yoke, a magnetic pole, a non-magnetic conductor, a cargo body and a protective device, wherein a coil is installed on the outside of the reversible magnetic steel, irreversible magnetic steel is installed on both sides of the outer end of the reversible magnetic steel, a magnetic conductive plate is connected to the bottom of the irreversible magnetic steel, a yoke is arranged on both sides of the outer ends of the reversible magnetic steel and the irreversible magnetic steel, and a magnetic pole is installed at the bottom of the yoke, the reversible magnetic steel, the coil, the irreversible magnetic steel, the magnetic conductive plate, the magnetic yoke and the magnetic pole are installed with a non-magnetic conductor outside, the cargo body is adsorbed at the bottom of the magnetic pole, and a protective device is installed between the cargo body and the magnetic pole, the protective device comprises a protective plate connected to the lower end of the magnetic pole, a side plate installed on both sides of the outer end of the protective plate, a connecting rod inserted into the side plate and connected to the inside of the magnetic pole, a connecting ring fastened to the right side of the connecting rod, a locking structure installed inside the side plate and a wear-resistant plate arranged at the lower end of the protective plate.

[0007] Preferably, the locking structure includes an adjusting rod rotatably connected to the inside of the side panel, a knob installed on the upper end of the adjusting rod, a connecting frame threadedly connected to the outside of the adjusting rod, a first guide rod plugged into both sides of the connecting frame, a pressure frame connected to the lower end of the connecting frame, a ball installed at the lower end of the pressure frame, a second guide rod plugged into both sides of the pressure frame, a compression spring arranged on the outside of the second guide rod, and a fixed block fastened to the lower end of the second guide rod and fixedly connected to the inside of the side panel.

[0008] Preferably, the reversible magnetic steel, coil, yoke and magnetic pole constitute a main magnetic circuit, and the irreversible magnetic steel and non-magnetic conductor constitute a secondary magnetic circuit.

[0009] Preferably, the protective plate is embedded and connected corresponding to the bottom of the magnetic pole, and the protective plate is made of magnetic conductive material.

[0010] Preferably, the connecting rod is transversely penetrated through the upper end of the protective plate, and the connecting rod passes through the inside of the magnetic pole.

[0011] Preferably, the adjusting rod is vertically rotatably connected to the middle part of the upper end of the side plate, and an external thread is correspondingly provided on the outer side of the lower end of the adjusting rod.

[0012] Preferably, vertical rods are integrally fixed on both sides of the middle of the connecting frame, and the connecting frame is combined and connected with the pressing frame through the integrally provided vertical rods.

[0013] Preferably, the ball is rotatably embedded in the middle of the lower end of the pressing frame, and the ball is correspondingly engaged with the inner part of the upper end of the connecting rod.

[0014] Beneficial effects of the utility model:

[0015] Advantage 1: The utility model is provided with a protective device, that is, through the combination of a protective plate and a wear-resistant plate, the magnetic pole and the cargo body can be separated and magnetically attracted to avoid direct contact between the magnetic pole and the cargo body, thereby reducing the wear rate of the magnetic pole and ensuring the safety of magnetic lifting.

[0016] Advantage 2: The utility model is provided with a locking structure, that is, by rotating the adjusting rod, the connecting frame can indirectly move the pressing frame up and down, so that the ball and the upper end of the connecting rod are relatively engaged or conveniently locked, so that the protective plate and the magnetic pole can be quickly disassembled and assembled, and conveniently inspected and replaced, thereby achieving the advantage of quick disassembly and assembly of the protective plate as a whole and satisfying the convenience of using the separated magnetic suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front view structure of the protective device of the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the protective device of the utility model;

[0020] Figure 4 It is a front view structural schematic diagram of the locking structure of the utility model.

[0021] Among them: reversible magnetic steel-1, coil-2, irreversible magnetic steel-3, magnetic plate-4, yoke-5, magnetic pole-6, non-magnetic body-7, cargo body-8, protective device-9, protective plate-91, side plate-92, connecting rod-93, connecting ring-94, locking structure-95, adjusting rod-951, knob-952, connecting frame-953, first guide rod-954, pressure frame-955, ball-956, second guide rod-957, compression spring-958, fixing block-959, wear-resistant plate-96. DETAILED DESCRIPTION

[0022] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0023] See also Figure 1 The utility model provides an electric-controlled permanent magnetic suction cup, comprising a reversible magnetic steel 1, a coil 2, an irreversible magnetic steel 3, a magnetic conductive plate 4, a yoke 5, a magnetic pole 6, a non-magnetic conductive body 7, a cargo body 8 and a protective device 9. The coil 2 is installed on the outside of the reversible magnetic steel 1, and irreversible magnetic steel 3 is installed on both sides of the outer end of the reversible magnetic steel 1. A magnetic conductive plate 4 is connected to the bottom of the irreversible magnetic steel 3. A yoke 5 is arranged on both sides of the outer ends of the reversible magnetic steel 1 and the irreversible magnetic steel 3, and three magnetic poles 6 are installed at the bottom of the yoke 5. The reversible magnetic steel 1, the coil 2, the irreversible magnetic steel 3, the magnetic conductive plate 4, the yoke 5 and the magnetic pole 6 are installed with a non-magnetic conductive body 7 outside. The cargo body 8 is adsorbed on the bottom of the magnetic pole 6, and a protective device 9 is installed between the cargo body 8 and the magnetic pole 6.

[0024] Among them, the reversible magnetic steel 1, the coil 2, the yoke 5 and the magnetic pole 6 constitute the main magnetic circuit, and the irreversible magnetic steel 3 and the non-magnetic conductor 7 constitute the secondary magnetic circuit, and the main magnetic circuit and the secondary magnetic circuit are combined into a whole through the non-magnetic conductor 7, thereby realizing the rapid construction of the electric-controlled permanent magnetic suction cup.

[0025] The electrically controlled permanent magnetic chuck includes a structural unit or a combined structural unit consisting of one or at least two main magnetic circuits and auxiliary magnetic circuits.

[0026] See also Figure 2-3The protective device 9 in this embodiment includes a protective plate 91 connected to the lower ends of the three magnetic poles 6 to achieve protective wear-resistant magnetic attraction, side plates 92 symmetrically fastened to the left and right sides of the protective plate 91, and a connecting rod 93 correspondingly plugged into the inside of the side plate 92 and connected to the inside of the three magnetic poles 6. In this way, a serial locking combination of the connecting rod 93 can be achieved, and a connecting ring 94 correspondingly fastened to the right side of the connecting rod 93 can be used to conveniently pull or insert the connecting rod 93, and the left and right sides of the upper end of the connecting ring 94 are provided with a clamping groove, a locking structure 95 correspondingly installed in the inside of the side plates 92 on both sides to achieve auxiliary plug-in locking cooperation, and a wear-resistant plate 96 correspondingly installed at the lower end of the protective plate 91. In this way, the wear resistance of the protective plate 91 can be improved, and the overall service life of the protective plate 91 can be improved.

[0027] Specifically, the protective plate 91 is embedded and connected corresponding to the bottom of the magnetic pole 6, and the protective plate 91 is made of a magnetic conductive material, and the protective plate 91 is made of silicon steel sheet or ferrite, thereby ensuring the stability of the adsorption and lifting effect of the electric permanent magnetic suction cup on the cargo body 8; the connecting rod 93 is horizontally penetrated at the upper end of the protective plate 91, and the connecting rod 93 runs through the inside of the magnetic pole 6, so that the connecting rod 93 can be connected in series with multiple magnetic poles 6, so that multiple magnetic poles 6 and the protective plate 91 can achieve rapid combination and docking activities.

[0028] See also Figure 4 The locking structure 95 in this embodiment includes an adjusting rod 951 that is rotatably connected to the inside of the side plate 92 to realize rotation adjustment transmission, a knob 952 corresponding to the upper end of the adjusting rod 951, a connecting frame 953 that is threadedly connected to the outside of the adjusting rod 951, and the connecting frame 953 moves up and down to realize downward squeeze locking or upward convenient locking, and a first guide rod 954 that is symmetrically vertically plugged into the left and right sides of the connecting frame 953, and the first guide rods 954 on both sides are fastened to the inside of the side plate 92, thereby realizing auxiliary locking. The movable guide cooperates with the pressure frame 955 connected to the lower end of the connecting frame 953, and the ball 956 installed on the lower end of the pressure frame 955 to realize the extrusion and clamping cooperation, and the second guide rod 957 symmetrically and vertically inserted on the left and right sides of the pressure frame 955 to ensure the stability of the up and down movement of the pressure frame 955, and the compression spring 958 installed on the outer side of the lower end of the second guide rod 957 on both sides to realize the elastic compression support, and the fixed block 959 which is tightly connected to the lower end of the second guide rod 957 on both sides and fixedly connected to the inside of the side plate 92.

[0029] To further explain, the adjusting rod 951 is vertically rotatably connected to the middle part of the upper end of the side plate 92, and an external thread is correspondingly opened on the outer side of the lower end of the adjusting rod 951, ensuring that the adjusting rod 951 as a whole can realize stable thread transmission adjustment activities; vertical rods are integrally fixed on both sides of the middle part of the connecting frame 953, and the connecting frame 953 is combined and docked with the pressure frame 955 through the integral vertical rods, ensuring that the connecting frame 953 and the pressure frame 955 are stably docked, and the stability of the up and down movement adjustment process is achieved; the ball 956 is rotatably embedded in the middle part of the lower end of the pressure frame 955, and the ball 956 is correspondingly engaged with the engaging groove opened inside the upper end of the connecting rod 93, ensuring that the pressure frame 955 squeezes the ball 956, realizes the squeezing and locking of the connecting rod 93, and ensures that the protective plate 91 and the magnetic pole 6 are firmly combined and docked.

[0030] Here’s how it works:

[0031] When the electric-controlled permanent magnetic suction cup is to be used, the electric-controlled permanent magnetic suction cup is first connected to an external lifting device. When the polarity of the main magnetic circuit composed of the reversible magnetic steel 1, the coil 2, the magnetic yoke 5 and the magnetic pole 6 is different from the polarity of the secondary magnetic circuit composed of the irreversible magnetic steel 3 and the non-magnetic conductor 7, the internal magnetic field of the electric-controlled permanent magnetic suction cup forms a loop inside it. In this way, the electric-controlled permanent magnetic suction cup does not generate a magnetic attraction force on the cargo body 8. If the polarity of the main magnetic circuit and the secondary magnetic circuit is the same, the generated magnetic field can flow to the magnetic yoke 5 and cooperate with the magnetic pole 6 connected at the bottom to magnetically lift the cargo body 8. In this way, under reciprocating cooperation, the cargo body 8 can be conveniently lifted and transported by magnetic attraction as a whole.

[0032] When the electric-controlled permanent magnetic suction cup is in use, in order to prevent the magnetic pole 6 from contacting the outer side of the cargo body 8 for a long time, resulting in wear on the outer side of the magnetic pole 6, reducing the magnetic attraction effect, and causing the risk of falling from a high altitude, a protective device 9 is installed on the outer side of the magnetic pole 6 to achieve separation of magnetic attraction and convenient replacement, that is, a protective plate 91 is installed at the bottom of the three magnetic poles 6 respectively, and the protective plate 91 is made of a magnetic conductive material. In this way, when the cargo body 8 is magnetically lifted, the protective plate 91 can simultaneously stably lift the cargo body 8 by magnetic attraction, thereby ensuring the magnetic attraction lifting effect of the electric-controlled permanent magnetic disk on the cargo body 8. At the same time, a wear-resistant plate 96 is installed at the bottom of the protective plate 91 to improve the wear resistance of the protective plate 91, so that the auxiliary magnetic attraction lifting service life of the protective plate 91 is increased, and there is no need to replace it in a short time.

[0033] If the outer part of the subsequent protection plate 91 is worn, the knobs 952 provided at the upper ends of the side plates 92 on both sides can be turned to rotate the knobs 952 to realize the rotation of the adjusting rod 951 connected to the bottom. As the adjusting rod 951 rotates, the connecting frame 953 threadedly connected to the outer part of the adjusting rod 951 will cooperate with the first guide rods 954 vertically plugged on the left and right sides to realize stable upward movement. As the connecting frame 953 moves up and down, the pressing frame 955 combined and docked with the bottom of the connecting frame 953 can be moved up synchronously. The pressing frame 955 can cooperate with the second guide rods 957 inserted on the left and right sides to move upward stably. In this way, the ball 956 installed at the bottom of the pressing frame 955 will move out of the clamping groove opened on the left or right side of the upper end of the connecting rod 93 to realize the release of the squeeze locking state. In this way, by pulling the connecting ring 94 set on the right side of the connecting rod 93, the connecting rod 93 can be pulled out horizontally as a whole to release the serial connection of the magnetic pole 6. In this way, the three magnetic poles 6 can be quickly disassembled and separated from the protective plate 91;

[0034] When the protective plate 91 and the three magnetic poles 6 are re-joined, the protective plate 91 and the three magnetic poles 6 need to be joined in advance, and then the connecting rod 93 is inserted horizontally to connect the side plates 92 on both sides and the three magnetic poles 6 in series to achieve the pre-combination activity. Then, the knob 952 can be turned again to rotate the adjustment rod 951 to move the connecting frame 953 downward, thereby, the pressing frame 955 can be moved downward accordingly, so that the ball 956 provided at the bottom is correspondingly inserted into the inner part of the clamping groove opened on the left or right side of the upper end of the connecting rod 93, so that the connecting rod 93 is In a stable transverse locking state, when the connecting rod 93 is locked, the three magnetic poles 6 can be stably combined and docked with the protective plate 91 to ensure the stability of the separation magnetic attraction. Secondly, when the pressure frame 955 moves down, the compression springs 958 arranged on the outside of the second guide rods 957 on both sides are squeezed to enable the compression springs 958 to achieve elastic compression and support cooperation, thereby strengthening the firmness of the transverse locking state of the connecting rod 93. In this way, the magnetic pole 6 can be re-combined with the protective plate 91, thereby achieving the overall rapid disassembly and assembly of the protective plate 91, which meets the advantages of convenient separation magnetic attraction.

[0035] The utility model provides an electrically controlled permanent magnetic suction cup, which is provided with a protective device 9, that is, through the combination of a protective plate 91 and a wear-resistant plate 96, the magnetic pole 6 and the cargo body 8 can be separated and magnetically attracted, so as to avoid direct contact between the magnetic pole 6 and the cargo body 8, reduce the wear rate of the magnetic pole 6, and ensure the safety of magnetic lifting, and a locking structure 95 is provided, that is, by rotating the adjusting rod 951, the connecting frame 953 can indirectly move the pressing frame 955 up and down, so that the ball 956 and the upper end of the connecting rod 93 are relatively engaged or conveniently locked, so that the protective plate 91 and the magnetic pole 6 can be quickly disassembled and assembled, and conveniently repaired and replaced, thereby achieving the advantages of quick disassembly and assembly of the protective plate 91 as a whole and satisfying the advantages of convenient use of separated magnetic attraction.

[0036] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrically controlled permanent magnetic chuck, characterized in that: The invention comprises a reversible magnetic steel (1), a coil (2), an irreversible magnetic steel (3), a magnetic conductive plate (4), a yoke (5), a magnetic pole (6), a non-magnetic conductive body (7), a cargo body (8) and a protective device (9), wherein the reversible magnetic steel (1) is provided with a coil (2) on the outside, the irreversible magnetic steel (1) is provided with irreversible magnetic steel (3) on both sides of the outer end, the irreversible magnetic steel (3) is connected with a magnetic conductive plate (4) at the bottom, the reversible magnetic steel (1) and the irreversible magnetic steel (3) are provided with a yoke (5) on both sides of the outer ends, and a magnetic pole (6) is provided at the bottom of the yoke (5), the reversible magnetic steel (1), the coil (2), the irreversible magnetic steel (3), the magnetic conductive plate (4), A non-magnetic conductive body (7) is installed outside the yoke (5) and the magnetic pole (6), a cargo body (8) is adsorbed on the bottom of the magnetic pole (6), and a protective device (9) is installed between the cargo body (8) and the magnetic pole (6), the protective device (9) comprising a protective plate (91) connected to the lower end of the magnetic pole (6), side plates (92) installed on both sides of the outer end of the protective plate (91), a connecting rod (93) inserted into the side plate (92) and connected to the inside of the magnetic pole (6), a connecting ring (94) fastened to the right side of the connecting rod (93), a locking structure (95) installed inside the side plate (92), and a wear-resistant plate (96) provided at the lower end of the protective plate (91).

2. The electrically controlled permanent magnetic chuck according to claim 1, characterized in that: The locking structure (95) comprises an adjusting rod (951) rotatably connected to the inside of the side plate (92), a knob (952) mounted on the upper end of the adjusting rod (951), a connecting frame (953) threadedly connected to the outside of the adjusting rod (951), a first guide rod (954) plugged into both sides of the connecting frame (953), a pressing frame (955) connected to the lower end of the connecting frame (953), a ball (956) mounted on the lower end of the pressing frame (955), a second guide rod (957) plugged into both sides of the pressing frame (955), a compression spring (958) arranged on the outside of the second guide rod (957), and a fixing block (959) fastened to the lower end of the second guide rod (957) and fixedly connected to the inside of the side plate (92).

3. The electrically controlled permanent magnetic chuck according to claim 1, characterized in that: The reversible magnetic steel (1), the coil (2), the magnetic yoke (5) and the magnetic pole (6) form a main magnetic circuit, and the irreversible magnetic steel (3) and the non-magnetic conductive body (7) form a secondary magnetic circuit.

4. The electrically controlled permanent magnetic chuck according to claim 1, characterized in that: The protective plate (91) is embedded and connected correspondingly to the bottom of the magnetic pole (6), and the protective plate (91) is made of a magnetic conductive material.

5. The electrically controlled permanent magnetic chuck according to claim 1, characterized in that: The connecting rod (93) is transversely arranged on the upper end of the protection plate (91), and the connecting rod (93) passes through the interior of the magnetic pole (6).

6. The electrically controlled permanent magnetic chuck according to claim 2, characterized in that: The adjusting rod (951) is vertically rotatably connected to the middle portion of the upper end of the side plate (92), and an external thread is correspondingly provided on the outer side of the lower end of the adjusting rod (951).

7. The electrically controlled permanent magnetic chuck according to claim 2, characterized in that: Vertical rods are integrally fixed on both sides of the middle of the connecting frame (953), and the connecting frame (953) is combined and docked with the pressing frame (955) through the integrally arranged vertical rods.

8. The electrically controlled permanent magnetic chuck according to claim 2, characterized in that: The ball (956) is rotatably embedded in the middle of the lower end of the pressing frame (955), and the ball (956) is correspondingly engaged with the inner part of the upper end of the connecting rod (93).

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