Novel electric spindle of vertical grinding machine

Abstract

When a bearing needs to be detached and cleaned, after a sleeve is pushed upwards, a trapezoidal block is pulled outwards, so that the trapezoidal block is pulled out of a lower protective shell, and the installation state of an upper protective shell and the lower protective shell is relieved. When the bearing needs to be disassembled and cleaned, after the sleeve is pushed upwards, the trapezoidal block is pulled outwards, so that the trapezoidal block is pulled out of the lower protective shell, the mounting state of the upper protective shell and the lower protective shell is relieved, the lower protective shell is opened, and the part of the bearing is cleaned, so that the bearing has the advantages that the bearing is quickly disassembled and maintained, and the service life of the bearing is prolonged. When the whole motorized spindle body is cooled, cooling water can be introduced into the U-shaped water flow channel in the motorized spindle body for water cooling, meanwhile, the ceramic protective sleeve is matched, the ceramic protective sleeve is made of a ceramic material, heat transfer can be conducted in a radiation mode, and therefore the heat absorption and dissipation effects are achieved; and the service life of the motorized spindle body is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of mechanical grinding device technology, and in particular to a novel electric spindle for a vertical grinding machine. Background Technology

[0002] The grinding spindle is the core component of a grinding machine. It carries the grinding head and grinding tools, and provides the required speed and precision to complete the machining of the workpiece. Its quality and performance play a crucial role in the overall operating efficiency and machining accuracy of the grinding machine.

[0003] Existing electric spindles use bearings installed inside to reduce friction during rotation. However, the bearings wear down the spindle surface over time. Tiny metal fragments from this wear mix with the lubricating oil on the bearing surface, requiring regular maintenance and replacement. Current installation methods, such as bolt fixing, make internal maintenance inconvenient. Additionally, the high internal temperature of the electric spindle during rotation necessitates timely cooling to extend its service life. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel vertical grinding machine electric spindle.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel vertical grinding machine electric spindle includes an electric spindle body, an upper protective shell and a lower protective shell fitted onto the surface of the electric spindle body, the lower protective shell being installed below the upper protective shell, a ceramic protective sleeve being fixedly connected to the inner wall of the upper protective shell, a bearing being installed on the inner wall of the upper protective shell, the inner surface of the bearing being in close contact with the outer surface of the electric spindle body, and a cooling and easy-to-remove mechanism being provided on the surface of the upper protective shell.

[0007] Preferably, the cooling disassembly mechanism includes a fixing plate fixedly connected to the surface of the upper protective shell, a sleeve slidably connected to the surface of the upper protective shell, a return spring sleeved on the surface of the upper protective shell, the top end of the return spring being fixedly connected to the lower surface of the fixing plate, and the bottom end of the return spring being fixedly connected to the upper surface of the sleeve.

[0008] Furthermore, multiple connecting plates are fixedly connected to the lower surface of the upper protective shell, and trapezoidal blocks are slidably connected to the inner walls of the multiple connecting plates. The same sealing ring is installed and pressed on the opposite surfaces of the lower protective shell and the upper protective shell.

[0009] Preferably, the surface of the lower protective shell is provided with a through hole, and the trapezoidal block is adapted to the inner wall of the through hole.

[0010] Furthermore, a cooling box is fixedly connected to the upper surface of the upper protective shell, the inner wall of the cooling box is sealed and fitted to the surface of the electric spindle body, and an inlet pipe and an outlet pipe are fixedly connected to the inner wall of the cooling box.

[0011] Preferably, a U-shaped water channel is formed on the surface of the electric spindle body, and a protective plate is fixedly connected to the upper surface of the cooling box.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. When it is necessary to disassemble and clean the bearing, push the sleeve upward and then pull the trapezoidal block outward to remove the trapezoidal block from the lower protective shell, thereby releasing the installation state of the upper and lower protective shells, opening the lower protective shell, and cleaning the bearing area. The advantage of doing this is that it allows for quick disassembly and maintenance.

[0014] 2. When cooling the entire electric spindle body, cooling water can be introduced into the U-shaped water channel inside the electric spindle body for water cooling. At the same time, a ceramic protective sleeve is used. The ceramic protective sleeve is made of ceramic material and can transfer heat through radiation, thereby achieving the effect of heat absorption and heat dissipation, thus extending the service life of the electric spindle body. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a novel vertical grinding machine electric spindle proposed in this utility model;

[0016] Figure 2 This is a cross-sectional view of the upper protective shell of a novel vertical grinding machine electric spindle proposed in this utility model.

[0017] Figure 3 This utility model proposes a novel vertical grinding machine electric spindle. Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This is a cross-sectional structural schematic diagram of the electric spindle in a novel vertical grinding machine electric spindle proposed in this utility model.

[0019] In the diagram: 1. Main body of the electric spindle; 2. Upper protective shell; 3. Cooling box; 4. Sleeve; 5. Return spring; 6. Fixing plate; 7. U-shaped water passage; 8. Water inlet pipe; 9. Ceramic protective sleeve; 10. Bearing; 11. Lower protective shell; 12. Sealing ring; 13. Connecting plate; 14. Trapezoidal block; 15. Through hole; 16. Protective plate; 17. Water outlet pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-4 A novel vertical grinding machine electric spindle includes an electric spindle body 1. An upper protective shell 2 and a lower protective shell 11 are fitted onto the surface of the electric spindle body 1. The lower protective shell 11 is installed below the upper protective shell 2. A ceramic protective sleeve 9 is fixedly connected to the inner wall of the upper protective shell 2. A bearing 10 is installed on the inner wall of the upper protective shell 2. The inner surface of the bearing 10 is in contact with the outer surface of the electric spindle body 1. A cooling and easy-to-remove mechanism is provided on the surface of the upper protective shell 2.

[0022] The upper protective shell 2 and the lower protective shell 11 are used to position and protect the internally installed electric spindle body 1. The ceramic protective sleeve 9 has both heat absorption and heat dissipation functions. The ceramic material can transfer heat through radiation, thereby achieving the effects of heat absorption and heat dissipation. The cooling and disassembly mechanism allows for quick disassembly of the upper protective shell 2 and the lower protective shell 11, enabling the replacement and cleaning of the lubricant inside the bearing 10. The electric spindle body 1 is cooled down when rotating at high speed.

[0023] In this utility model, reference is made to Figure 2 The cooling and disassembly mechanism includes a fixing plate 6 fixedly connected to the surface of the upper protective shell 2, a sleeve 4 slidably connected to the surface of the upper protective shell 2, a return spring 5 sleeved on the surface of the upper protective shell 2, the top end of the return spring 5 being fixedly connected to the lower surface of the fixing plate 6, and the bottom end of the return spring 5 being fixedly connected to the upper surface of the sleeve 4.

[0024] By setting the fixing plate 6, the installation support of the reset spring 5 is realized. By setting the reset spring 5, the sleeve 4 is driven to reset, thereby indirectly maintaining the stability of the upper protective shell 2 and the lower protective shell 11 after installation.

[0025] In this utility model, reference is made to Figure 3 Multiple connecting plates 13 are fixedly connected to the lower surface of the upper protective shell 2. Trapezoidal blocks 14 are slidably connected to the inner walls of the multiple connecting plates 13. The same sealing ring 12 is installed and pressed on the opposite surfaces of the lower protective shell 11 and the upper protective shell 2.

[0026] By setting the connecting plate 13, the sliding stability of the trapezoidal block 14 is maintained, and by setting the sealing ring 12, the leakage of lubricant adhering to the surface of the bearing 10 is prevented.

[0027] In this utility model, reference is made to Figure 3 The surface of the lower protective shell 11 is provided with a through hole 15, and the trapezoidal block 14 is adapted to the inner wall of the through hole 15.

[0028] By setting through holes 15, the sliding stability of trapezoidal block 14 is maintained, and the insertion and positioning stability of upper protective shell 2 and lower protective shell 11 is achieved.

[0029] In this utility model, reference is made to Figure 4 A cooling box 3 is fixedly connected to the upper surface of the upper protective shell 2. The inner wall of the cooling box 3 is sealed and fitted to the surface of the electric spindle body 1. A water inlet pipe 8 and a water outlet pipe 17 are fixedly connected to the inner wall of the cooling box 3.

[0030] Cooling water is collected by setting up cooling box 3, and water inlet pipe 8 and water outlet pipe 17 are set up for water inlet and water outlet operations to ensure that the cooling water after heat absorption circulates.

[0031] In this utility model, reference is made to Figure 4 The surface of the electric spindle body 1 is provided with a U-shaped water passage 7, and a protective plate 16 is fixedly connected to the upper surface of the cooling box 3.

[0032] By setting up a U-shaped water flow channel 7, cooling water can be quickly cooled when it enters the U-shaped water flow channel 7. By setting up a protective plate 16, the upper part of the cooling box 3 is protected after the electric spindle body 1 and the upper protective shell 2 are installed as a whole, preventing the cooling box 3 from being deformed or damaged by accidental impact.

[0033] Working principle: The bottom end of the electric spindle body 1 is installed with the grinding disc for rotating grinding operations. When the electric spindle body 1 is in use, it generates a large amount of heat. The ceramic protective sleeve 9 can transfer heat through radiation, thereby achieving the effects of heat absorption and dissipation. At this time, cooling water can also be introduced into the water inlet pipe 8. The cooling water enters the U-shaped water passage 7 through the cooling box 3 to achieve the cooling effect of the electric spindle body 1, and is discharged through the water outlet pipe 17. When the electric spindle body 1 is not in use and the surface lubricant of the bearing 10 needs to be cleaned, the sleeve 4 is pushed upward to release the obstruction of one end of the multiple trapezoidal blocks 14. Then, the trapezoidal blocks 14 are pulled outward to remove them from the lower protective shell 11, thus releasing the installation state of the upper protective shell 2 and the lower protective shell 11. The lower protective shell 11 is then opened to clean the bearing 10. With the above structure, disassembly and maintenance can be carried out conveniently, extending the service life of the electric spindle body 1.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new type of vertical grinder electric spindle comprising an electric spindle body (1), characterized in that, The surface of the electric spindle body (1) is sleeved with an upper protective shell (2) and a lower protective shell (11), the lower protective shell (11) is installed below the upper protective shell (2), the inner wall of the upper protective shell (2) is fixedly connected with a ceramic protective sleeve (9), the inner wall of the upper protective shell (2) is provided with a bearing (10), the inner surface of the bearing (10) is in contact with the outer surface of the electric spindle body (1), and the surface of the upper protective shell (2) is provided with a cooling and easy-to-disassemble mechanism.

2. A new vertical grinding machine electric spindle according to claim 1, characterized in that, The cooling and easy-to-disassemble mechanism comprises a fixed plate (6) fixedly connected to the surface of the upper protective shell (2), a sleeve (4) slidably connected to the surface of the upper protective shell (2), and a reset spring (5) sleeved on the surface of the upper protective shell (2), wherein the top end of the reset spring (5) is fixedly connected with the lower surface of the fixed plate (6), and the bottom end of the reset spring (5) is fixedly connected with the upper surface of the sleeve (4).

3. A new type of vertical grinding machine electric spindle according to claim 1, characterized in that, The lower surface of the upper protective shell (2) is fixedly connected with a plurality of connecting plates (13), the inner walls of the plurality of connecting plates (13) are slidably connected with trapezoidal blocks (14), and the opposite surfaces of the lower protective shell (11) and the upper protective shell (2) are installed with the same sealing ring (12).

4. A new type of vertical grinding machine electric spindle according to claim 3, characterized in that, The surface of the lower protective shell (11) is provided with a through hole (15), and the trapezoidal block (14) is matched with the inner wall of the through hole (15).

5. A new vertical grinding machine electric spindle as claimed in claim 1, wherein, The upper surface of the upper protective shell (2) is fixedly connected with a cooling box (3), the inner wall of the cooling box (3) is sealingly and closely attached to the surface of the electric spindle body (1), and the inner wall of the cooling box (3) is fixedly connected with a water inlet pipe (8) and a water outlet pipe (17).

6. A new vertical grinder electric spindle according to claim 5, characterized in that, The surface of the electric spindle body (1) is provided with a U-shaped water flow channel (7), and the upper surface of the cooling box (3) is fixedly connected with a protective plate (16).

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