Electromagnetic chuck of bearing grinding machine
By incorporating a non-magnetic mounting base and a cooling design, the electromagnetic chuck for grinding machines solves the problems of unstable fixation and high temperature in harsh environments, thereby improving the flexibility, precision, and efficiency of machining.
Patent Information
- Application Number
- CN202520288993.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-21
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-21
AI Technical Summary
The existing electromagnetic chucks for grinding machines are unstable in certain environments, and the high temperature and heat problems during grinding have not been effectively solved.
Featuring a non-magnetic mounting base design, combined with a cooling layer and heat sink structure, the electromagnet chuck is divided into an inner ring, a middle ring, and an outer ring, which are independently controlled and suitable for bearing grinding machines.
It achieves stable fixation in harsh environments, rapid adjustment, reduced energy consumption, improved processing accuracy and efficiency, and ensures processing quality.
Smart Images

Figure CN223762968U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electromagnetic chuck manufacturing, and in particular to an electromagnetic chuck for a bearing grinding machine. Background Technology
[0002] Electromagnetic chucks are used in various machine tools, such as surface grinders, milling machines, and planers, to replace bolts in fixing workpieces. Utilizing electromagnetic principles, energizing the coil inside the electromagnetic chuck generates magnetic force. This magnetic force passes through the chuck's panel, firmly adhering the workpiece to the panel. Once processing is complete, stopping the energization of the coil allows the workpiece to be removed from the panel.
[0003] The electromagnetic chucks currently used in grinding machines have the following drawbacks:
[0004] 1. The electromagnetic chuck and the grinding machine are usually fixed with bolts or clamps. However, in some specific environments, such as when the electromagnetic chuck is replaced frequently, the grinding machine has limited space, or there is a lot of oil and dust that may cause mechanical fixation failure, the fixing with bolts or clamps is often not satisfactory.
[0005] 2. Grinding machines generate high temperatures and heat during processing. Cooling is usually achieved by spraying coolant, but this can have a significant impact on the workshop environment. Utility Model Content
[0006] The purpose of this invention is to provide an electromagnetic chuck for a bearing grinding machine to solve the above-mentioned defects.
[0007] To achieve the above objectives, the technical solution of this utility model is as follows:
[0008] An electromagnetic chuck for a bearing grinding machine includes a mounting base. An electromagnet chuck one is mounted on the front side of the mounting base, and the front side of the electromagnet chuck one is used to adsorb the workpiece to be processed. An electromagnet chuck two is mounted on the back side of the mounting base, and the electromagnet chuck two is used to adsorb and fix with the grinding machine. The mounting base is a non-magnetic mounting base.
[0009] Furthermore, the mounting base is made of a non-magnetic alloy material.
[0010] Furthermore, a cooling layer is provided between the mounting base and the electromagnet chuck.
[0011] Furthermore, the cooling layer includes a coolant circulation pipe that is coiled on the back of the electromagnet chuck to absorb heat from the electromagnet chuck. The coolant circulation pipe includes a coolant inlet and a coolant outlet.
[0012] Furthermore, the cooling layer includes a heat sink layer, which is disposed between the coolant circulation pipe and the mounting base to absorb heat from the coolant circulation pipe.
[0013] Furthermore, several pre-drilled screw holes are provided on the connection surface between the electromagnet chuck and the grinding machine.
[0014] Furthermore, the electromagnet chuck is a circular chuck, and the multiple electromagnetic coils inside it are distributed in concentric circles from the center outwards. The multiple electromagnetic coils are divided into an inner ring region, a middle ring region, and an outer ring region on the surface of the electromagnet chuck. The electromagnetic coils in the inner ring region, the middle ring region, and the outer ring region are independently controlled by three circuits.
[0015] The advantages of this utility model are:
[0016] 1. Electromagnetic chucks are installed on both the front and back of the mounting base. The electromagnetic chuck on the front is used to attract the workpiece to be processed, while the chuck on the back is used to achieve a fixed connection with the grinding machine. The non-magnetic mounting base is used to isolate magnetic interference between the front and back sides. The magnetic fixation with the grinding machine can greatly simplify the connection structure between the electromagnetic chuck and the grinding machine and optimize the processing space. At the same time, it can meet the needs of quick adjustment when the position of the electromagnetic chuck needs to be adjusted frequently or different sizes of chucks need to be replaced due to frequent changes in the process. In addition, the magnetic fixation also provides good safety assurance in harsh oil and dust conditions.
[0017] 2. A water-cooling and heat sink structure has been added to accelerate the dissipation of heat generated during grinding, ensuring the normal operation of the equipment and the processing quality and efficiency;
[0018] 3. The electromagnetic chuck of the grinding machine adopts a concentric circle design, which mainly improves the flexibility, accuracy and efficiency of processing. At the same time, through the independent zone control of the inner ring, middle ring and outer ring, it can meet the processing needs of workpieces of different sizes and shapes. Attached Figure Description
[0019] Figure 1 This is a side view of the electromagnetic chuck of the bearing grinding machine in the embodiment;
[0020] Figure 2 This is a three-dimensional structural diagram of the electromagnetic chuck of the bearing grinding machine in the embodiment;
[0021] Figure 3 This is a front view of the electromagnetic chuck of the bearing grinding machine in the embodiment.
[0022] Label Explanation
[0023] 1. Mounting base; 2. Electromagnet chuck one; 3. Electromagnet chuck two; 4. Coolant circulation pipe; 5. Coolant inlet; 6. Coolant outlet; 7. Heat sink layer; 8. Reserved screw hole; 9. Electromagnetic coil. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to the embodiments. It should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" etc. indicated by the accompanying drawings are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.
[0025] This embodiment proposes an electromagnetic chuck for a bearing grinding machine, such as... Figures 1 to 3 As shown, the device includes a circular mounting base 1. A circular electromagnet chuck 2 is mounted on the front of the mounting base 1, and a circular electromagnet chuck 3 is mounted on the back of the mounting base 1. The electromagnet chuck 2 on the front is used to attract the workpiece to be processed, while the electromagnet chuck 3 on the back is used to achieve a magnetic connection with the grinding machine. This magnetic fixation to the grinding machine significantly simplifies the connection structure between the electromagnet chuck and the grinding machine, optimizing the processing space. It also meets the need for rapid adjustment when the position of the electromagnet chuck needs to be frequently adjusted or different sizes of chucks need to be replaced due to frequent changes in the process. Furthermore, the magnetic fixation provides better safety assurance in harsh oil and dusty working conditions.
[0026] To avoid magnetic interference when electromagnet chuck 12 and electromagnet chuck 23 are turned on simultaneously, the mounting base 1 of this application is a non-magnetic mounting base made of non-magnetic materials, such as high-strength plastics or non-magnetic alloys, and has a certain thickness to effectively isolate the magnetic interference between electromagnet chuck 12 and electromagnet chuck 23.
[0027] However, considering that some grinding machines still require mechanical fixing with the electromagnet chuck (such as bolt fixing or clamp fixing), such as Figure 2 As shown, in this embodiment, several pre-drilled screw holes 8 are provided on the connection surface between the electromagnet chuck 2 3 and the grinding machine. When bolt fixing is required, studs can be screwed into the pre-drilled screw holes 8 and a mounting plate (or transition plate) that can be mechanically connected to the grinding machine can be connected and fixed. The mounting plate has a structure for mechanical fixing to the grinding machine, thereby realizing the mechanical connection with the grinding machine.
[0028] like Figure 1 and Figure 2As shown, a cooling layer is provided between the mounting base 1 and the electromagnet chuck 2 in this embodiment. The cooling layer includes a coolant circulation pipe 4, which is coiled around the back of the electromagnet chuck 2 to absorb heat from it. The coolant circulation pipe 4 includes a coolant inlet 5 and a coolant outlet 6. The cooling layer also includes a heat sink layer 7, which is positioned between the coolant circulation pipe and the mounting base 1 to absorb excess heat that cannot be dissipated quickly from the coolant circulation pipe 4. This cooling layer design accelerates the dissipation of heat generated during grinding on the electromagnet chuck 2, ensuring the normal operation of the equipment and maintaining processing quality and efficiency.
[0029] like Figure 3 As shown, the multiple electromagnetic coils 9 inside the electromagnet chuck 2 are distributed in concentric circles from the center outwards. The multiple electromagnetic coils 9 are divided into an inner ring region, a middle ring region, and an outer ring region on the surface of the electromagnet chuck 2. The electromagnetic coils 9 in the inner ring region, the middle ring region, and the outer ring region are controlled independently by three circuits.
[0030] The concentric circle design of the internal electromagnetic coil 9 of the electromagnet chuck 2 can improve the flexibility, accuracy and efficiency of processing, which is common knowledge. Based on this, this application divides the surface of the electromagnet chuck 2 into independent zones for control. For example, when processing small-sized bearings, only the magnetic force of the inner ring and / or the middle ring is activated, while when processing large-sized bearings, only the magnetic force of the outer ring is activated. This can meet the processing needs of workpieces of different sizes and shapes, further improving processing flexibility and reducing energy consumption. For precision parts or workpieces requiring high surface finish, such independent zone control can more precisely control the magnetic field and ensure processing quality.
[0031] The above embodiments are only used to explain the concept of this utility model, and are not intended to limit the protection of this utility model. Any non-substantial modifications made to this utility model using this concept should fall within the protection scope of this utility model.
Claims
1. A bearing grinder electromagnetic chuck comprising a mounting base, a front surface of the mounting base is provided with an electromagnet chuck 1, a front surface of the electromagnet chuck 1 is used for adsorbing a workpiece to be processed, characterized in that, The back of the mounting seat is mounted with an electromagnet chuck two, which is used for adsorbing and fixing with the grinding machine, and the mounting seat is a non-magnetic mounting seat.
2. The electromagnetic chuck for a bearing grinder as set forth in claim 1, wherein The mounting seat and the electromagnet chuck one are provided with a cooling layer.
3. The electromagnetic chuck for a bearing grinder as set forth in claim 2, wherein The cooling layer comprises a cooling liquid circulation pipeline, which is coiled on the back of the electromagnet chuck one and is used for absorbing the heat on the electromagnet chuck one, and the cooling liquid circulation pipeline comprises a cooling liquid inlet and a cooling liquid outlet.
4. The electromagnetic chuck for a bearing grinder as set forth in claim 3, wherein The cooling layer comprises a fin layer, which is arranged between the cooling liquid circulation pipeline and the mounting seat and is used for absorbing the heat on the cooling liquid circulation pipeline.
5. The electromagnetic chuck for a bearing grinder as set forth in claim 1, wherein A plurality of reserved screw holes are arranged on the connecting surface of the electromagnet chuck two and the grinding machine.
6. The electromagnetic chuck for a bearing grinder as set forth in claim 1, wherein The electromagnet chuck one is a circular chuck, a plurality of electromagnetic coils in the circular chuck are distributed in concentric circles from the center to the outside, the plurality of electromagnetic coils are divided into an inner ring area, a middle ring area and an outer ring area on the disc surface of the electromagnet chuck one, and the electromagnetic coils in the inner ring area, the middle ring area and the outer ring area are respectively controlled by three circuits.
Citation Information
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