Electric permanent magnetic chuck convenient for replacing suction head

Abstract

The utility model discloses an electric permanent magnetic chuck convenient for replacing a suction head, and relates to the technical field of electric permanent magnetic chucks. The electric permanent magnetic chuck with the suction head convenient to replace comprises a shell, a base and a magnetic circuit unit, the base is located below the shell, the magnetic circuit unit is located in the shell and located above the base, the shell comprises an outer shell and a plug, and the plug is located on the outer side of the outer shell and fixedly connected with the outer shell through a bolt. According to the electro-permanent magnetic chuck with the suction heads convenient to replace, the suction heads are arranged at the top of the shell, the bottoms of the suction heads are sleeved with the insulating bases to guarantee insulation between the suction heads and between the suction heads and the shell, the suction heads are fixed through the positioning bolts, and the suction heads are greatly convenient to replace; the shell is sleeved on the base, the shell and the base are respectively provided with the upper sealing groove and the lower sealing groove which correspond to each other, and the sealing rings are clamped in the upper sealing groove and the lower sealing groove, so that the sealing performance of the electric permanent magnetic chuck is ensured.

Description

Technical Field

[0001] This utility model relates to the field of electro-permanent magnet chuck technology, specifically an electro-permanent magnet chuck that facilitates the replacement of the chuck head. Background Technology

[0002] An electro-permanent magnet chuck is a device that uses electromagnetic principles to hold workpieces. It combines the permanent magnetism of a permanent magnet with the controllable characteristics of an electromagnet, using electrical pulses to control the generation and disappearance of the magnetic field, thereby achieving the holding and releasing of the workpiece.

[0003] In existing electro-permanent magnet chucks, the suction head is set on the working surface of the chuck. There are gaps between the suction heads and between the suction head and the housing. Existing electro-permanent magnet chucks use epoxy resin filler to fill the gaps to ensure insulation between the suction heads and between the suction head and the housing. However, the epoxy resin filler of existing electro-permanent magnet chucks is prone to water ingress, and prolonged operation can cause cracking at the filler, reducing the insulation of the chuck, leading to damage to the chuck, and affecting its working performance and service life.

[0004] Epoxy resin filling makes it difficult to replace the suction head, requiring the removal of epoxy resin, which is time-consuming and laborious. After replacing the suction head, epoxy resin needs to be refilled, wasting resources. Epoxy resin filler is prone to water ingress, and after long-term use, the epoxy resin ages and cracks at the filling point, reducing the insulation of the suction cup, causing damage to the suction cup, and affecting the working performance and service life of the suction cup. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an electro-permanent magnet chuck that facilitates the replacement of suction heads. It solves the problems of difficult suction head replacement due to epoxy resin filling, the need to remove epoxy resin, which is time-consuming and laborious, and the need to refill epoxy resin after replacing the suction head, which wastes resources; epoxy resin filler is prone to water ingress, and after long-term use, epoxy resin aging causes cracking at the filling point, reducing the insulation of the suction cup, leading to suction cup damage, and affecting the working performance and service life of the suction cup.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electro-permanent magnet chuck for easy replacement of the suction head, comprising a housing, a base, and a magnetic circuit unit. The base is located below the housing, and the magnetic circuit unit is located inside the housing and above the base. The housing includes an outer shell and a plug. The plug is located outside the outer shell and is fixedly connected to the outer shell by bolts. A slot is provided on the outer shell, and a clamping block is inserted into the slot. The suction head has a positioning bolt inserted into its inner side, and an insulating seat is sleeved on its outer side. The insulating seat is located at the bottom of the suction head, and the positioning bolt passes through the suction head and the insulating seat and is threadedly connected to the outer shell.

[0007] Preferably, the inner side of the housing is provided with an upper sealing groove, the outer side of the housing is provided with a plug, the plug is connected to the housing with a bolt, and a cable is sleeved on the outer side of the plug.

[0008] Preferably, the base includes a base plate and a sealing ring, the sealing ring is located above the base plate, the top of the base plate has a lower sealing groove corresponding to the upper sealing groove, and a number of evenly distributed fixing bolts are inserted into the outer side of the base plate.

[0009] Preferably, the magnetic circuit unit includes magnetic poles and filling material. The magnetic poles are located inside the filling material. The filling material has a placement groove, in which a magnet is engaged. An electromagnetic coil is provided at the bottom of the filling material.

[0010] Preferably, the sealing ring is snapped into the inner side of the upper and lower sealing grooves, and the fixing bolt is inserted through the outer shell and threadedly connected to the base plate.

[0011] Preferably, the magnetic pole is fixed to the top of the inner side of the housing, the filling material, the magnet and the electromagnetic coil are snapped into the inner side of the housing, the filling material abuts against the electromagnetic coil, and the electromagnetic coil is located at the top of the base plate.

[0012] This utility model discloses an electro-permanent magnet chuck that facilitates the replacement of the suction head. Its beneficial effects are as follows: the suction head is located on the top of the outer shell, and an insulating seat is fitted onto the bottom of the suction head to ensure insulation between suction heads and between the suction head and the outer shell. A positioning bolt is provided to fix the suction head, greatly facilitating its replacement. The outer shell is fitted onto the base, and both the outer shell and the base have corresponding upper and lower sealing grooves. Sealing rings are engaged in the upper and lower sealing grooves to ensure the sealing performance of the electro-permanent magnet chuck. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the shell of this utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the base of this utility model;

[0018] Figure 5 This is a schematic diagram of the magnetic circuit unit of this utility model.

[0019] In the diagram: 1. Housing; 11. Outer shell; 111. Slot; 112. Clamping block; 113. Upper sealing groove; 12. Plug; 121. Cable; 13. Suction head; 131. Positioning bolt; 132. Insulating seat; 2. Base; 21. Seat plate; 211. Lower sealing groove; 212. Fixing bolt; 22. Sealing ring; 3. Magnetic circuit unit; 31. Magnetic pole; 32. Filling material; 33. Magnet; 34. Electromagnetic coil. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] This application provides an electro-permanent magnet chuck that facilitates tip replacement. It solves the problems of difficult tip replacement due to epoxy resin filling, the need for time-consuming and laborious epoxy resin removal, the need for refilling with epoxy resin after tip replacement, which wastes resources; the ease with which water can enter the epoxy resin filler, and the cracking of the filler after prolonged use due to epoxy resin aging, which reduces the insulation of the chuck, leading to chuck damage and affecting its performance and lifespan. This invention enables convenient and quick tip replacement.

[0022] This utility model discloses an electro-permanent magnet chuck that facilitates the replacement of the suction head.

[0023] According to the appendix Figure 1-5 As shown, the device includes a housing 1, a base 2, and a magnetic circuit unit 3. The base 2 is located below the housing 1, and the magnetic circuit unit 3 is located inside the housing 1 and above the base 2. The housing 1 includes an outer shell 11 and a plug 12. The plug 12 is located outside the outer shell 11 and is fixedly connected to the outer shell 11 by bolts. A slot 111 is provided on the outer side of the outer shell 11, and a clamping block 112 and a suction head 13 are inserted into the slot 111. A positioning bolt 131 is inserted into the inner side of the slot 111. An insulating seat 132 is sleeved on the outer side of the suction head 13. The insulating seat 132 is located at the bottom of the suction head 13. The positioning bolt 131 passes through the suction head 13 and the insulating seat 132 and is threadedly connected to the outer shell 11.

[0024] The suction head 13 is located on the top of the outer shell 11, and an insulating seat 132 is sleeved on the bottom of the suction head 13 to ensure insulation between suction heads 13 and between suction heads 13 and the outer shell 11. A positioning bolt 131 is provided to fix the suction head 13, which greatly facilitates the replacement of the suction head 13. The outer shell 11 is sleeved on the outside of the base 2. The outer shell 11 and the base 2 are respectively provided with corresponding upper sealing grooves 113 and lower sealing grooves 211. Sealing rings 22 are snapped into the upper sealing grooves 113 and lower sealing grooves 211 to ensure the sealing performance of the electro-permanent magnet chuck.

[0025] Furthermore, an upper sealing groove 113 is provided on the inner side of the outer casing 11, and a plug 12 is provided on the outer side of the outer casing 11. The plug 12 is connected to the outer casing 11 by a bolt, and a cable 121 is sleeved on the outer side of the plug 12.

[0026] Furthermore, the base 2 includes a base plate 21 and a sealing ring 22. The sealing ring 22 is located above the base plate 21. A lower sealing groove 211 is provided on the top of the base plate 21. The lower sealing groove 211 corresponds to the upper sealing groove 113. Several evenly distributed fixing bolts 212 are inserted into the outer side of the base plate 21.

[0027] Specifically disclosed, the magnetic circuit unit 3 includes a magnetic pole 31 and a filling material 32. The magnetic pole 31 is located inside the filling material 32. A placement groove is provided on the filling material 32, and a magnet 33 is snapped into the placement groove. An electromagnetic coil 34 is provided at the bottom of the filling material 32.

[0028] Specifically disclosed, the sealing ring 22 is snapped into the inner side of the upper sealing groove 113 and the lower sealing groove 211, and the fixing bolt 212 is inserted through the outer shell 11 and threadedly connected to the seat plate 21.

[0029] It should be emphasized that the magnetic pole 31 is fixed to the top of the inner side of the outer casing 11, and the filling material 32, the magnet 33 and the electromagnetic coil 34 are snapped into the inner side of the outer casing 11. The filling material 32 abuts against the electromagnetic coil 34, and the electromagnetic coil 34 is located at the top of the base plate 21.

[0030] Working principle: The electro-permanent magnet chuck contains a magnet 33 and an electromagnetic coil 34. When no power is applied, the magnetic field generated by the magnet 33 gives the suction head 13 a certain attractive force, allowing it to hold lighter workpieces. When a positive pulse current is applied, the magnetic field generated by the electromagnetic coil 34 superimposes with the magnetic field of the magnet 33, greatly enhancing the attractive force and enabling it to firmly hold heavier workpieces. When a reverse pulse current is applied, the magnetic field generated by the electromagnetic coil 34 cancels out the magnetic field of the magnet 33, the attractive force disappears, and the workpiece can be easily removed.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electro-permanent magnet chuck with an easily replaceable suction head, comprising a housing (1), a base (2), and a magnetic circuit unit (3), wherein the base (2) is located below the housing (1), and the magnetic circuit unit (3) is located inside the housing (1) and above the base (2), characterized in that, The housing (1) includes an outer shell (11) and a plug (12). The plug (12) is located outside the outer shell (11) and is fixedly connected to the outer shell (11) by bolts. A slot (111) is provided on the outer side of the outer shell (11). A clamping block (112) is inserted into the slot (111). A positioning bolt (131) is inserted into the inner side of the suction head (13). An insulating seat (132) is sleeved on the outer side of the suction head (13). The insulating seat (132) is located at the bottom of the suction head (13). The positioning bolt (131) passes through the suction head (13) and the insulating seat (132) and is threadedly connected to the outer shell (11).

2. The electro-permanent magnet chuck with an easily replaceable suction head according to claim 1, characterized in that, The inner side of the outer shell (11) is provided with an upper sealing groove (113), and the outer side of the outer shell (11) is provided with a plug (12). The plug (12) is connected to the outer shell (11) by a bolt, and a cable (121) is sleeved on the outer side of the plug (12).

3. The electro-permanent magnet chuck with an easily replaceable suction head according to claim 1, characterized in that, The base (2) includes a seat plate (21) and a sealing ring (22). The sealing ring (22) is located above the seat plate (21). A lower sealing groove (211) is provided on the top of the seat plate (21). The lower sealing groove (211) corresponds to the upper sealing groove (113). Several evenly distributed fixing bolts (212) are inserted into the outer side of the seat plate (21).

4. The electro-permanent magnet chuck with an easily replaceable suction head according to claim 1, characterized in that, The magnetic circuit unit (3) includes a magnetic pole (31) and a filling material (32). The magnetic pole (31) is located inside the filling material (32). A placement groove is provided on the filling material (32). A magnet (33) is snapped into the placement groove. An electromagnetic coil (34) is provided at the bottom of the filling material (32).

5. The electro-permanent magnet chuck with an easily replaceable suction head according to claim 3, characterized in that, The sealing ring (22) is snapped into the inner side of the upper sealing groove (113) and the lower sealing groove (211), and the fixing bolt (212) is inserted through the outer shell (11) and threadedly connected to the seat plate (21).

6. The electro-permanent magnet chuck with an easily replaceable suction head according to claim 4, characterized in that, The magnetic pole (31) is fixed to the top of the inner side of the outer shell (11). The filling material (32), the magnet (33) and the electromagnetic coil (34) are snapped into the inner side of the outer shell (11). The filling material (32) abuts against the electromagnetic coil (34). The electromagnetic coil (34) is located on the top of the base plate (21).

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