High-speed dynamic and static pressure dustproof device for permanent magnet motorized spindle

Abstract

The utility model relates to permanent magnet electric spindle technical field, concretely is a kind of high-speed dynamic static pressure permanent magnet electric spindle dustproof device, including shaft body ontology, the surface of the shaft body ontology is fixedly connected with mounting seat, the side of the shaft body ontology is provided with end head. The utility model, by setting dustproof mechanism can be driven connecting rod rotation by movable shaft, rotate simultaneously and drive protective outer cover simultaneously, can its protective outer cover and protective inner cover to its bearing and end head under the use of sealing ring, reach more conformal dustproof effect, when its protective sleeve is adjusted to the appropriate position, can be moved in the inside of moving groove by its moving rod, drive its limit rod is connected in the inside of limit slot, and to its limit ring reach the effect of limiting, make its limit rod fixed avoid the rotation of its movable shaft cause hindrance, dustproof mechanism can effectively block foreign matter into bearing, can reduce the abrasion of bearing, reduce the bearing failure probability caused by foreign matter entering.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet electric spindle technology, and in particular to a dustproof device for a high-speed dynamic and static pressure permanent magnet electric spindle. Background Technology

[0002] An electric spindle is a set of components, including the electric spindle itself and its accessories: electric spindle, high-frequency inverter, oil mist lubricator, cooling device, built-in encoder, tool changer, etc. The electric spindle is a new technology that integrates the machine tool spindle and spindle motor in the field of CNC machine tools. Together with linear motor technology and high-speed tool technology, it has pushed high-speed machining into a new era.

[0003] In existing high-speed dynamic and static pressure permanent magnet electric spindle dustproof devices, the protective sleeves of some components are fixed, making it easier for dust to enter the electric spindle through fixed gaps or channels. Especially during high-speed operation, debris and dust may directly impact the fixed parts of the dustproof device due to inertia, reducing the dustproof effect and increasing the risk of contamination of the internal components of the electric spindle. Therefore, this needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that in the prior art, the protective sleeves of some devices are fixed and dust can more easily enter the electric spindle through the fixed gaps or channels. Especially when running at high speed, debris and dust may directly impact the fixed part of the dustproof device due to inertia, reducing the dustproof effect and increasing the risk of contamination of the internal components of the electric spindle. Therefore, a dustproof device for high-speed dynamic and static pressure permanent magnet electric spindles is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-speed dynamic and static pressure permanent magnet electric spindle dustproof device, comprising a spindle body, a mounting base fixedly connected to the surface of the spindle body, an end provided on one side of the spindle body, a bearing provided on one side of the end, mounting plates fixedly connected to both sides of the mounting base, and dustproof mechanisms provided on both sides of the mounting base. The dustproof mechanism includes a fixed frame, the fixed frame being fixedly connected to the surface of the mounting plate, a movable shaft rotatably connected between the inner walls of the fixed frame, one side of the movable shaft being located on the outer side of the fixed frame, a connecting rod fixedly connected to the surface of the movable shaft, a protective sleeve fixedly connected to the side of the connecting rod away from the movable shaft, and the protective sleeve being movably connected to the surface of the bearing.

[0006] Furthermore, a protective inner sleeve is fixedly connected inside the protective outer sleeve, and a sealing ring is provided on the upper surface of the protective inner sleeve.

[0007] Furthermore, a limiting ring is fixedly connected to the side of the movable shaft away from the mounting plate, and a limiting groove is formed on the surface of the limiting ring, with a plurality of limiting grooves distributed on the surface of the limiting ring.

[0008] Furthermore, a mounting frame is fixedly connected to the side of the fixed frame near the limiting ring, and a limiting spring is fixedly connected to the inside side of the mounting frame.

[0009] Furthermore, a limiting rod is fixedly connected to one side of the limiting spring, and the side of the limiting rod away from the limiting spring is engaged inside the limiting groove.

[0010] Furthermore, the top of the mounting frame is provided with a movable groove, and a movable rod is movably connected inside the movable groove. The bottom of the movable rod is fixedly connected to the top of the limiting rod.

[0011] Furthermore, a fixing hole is provided on one side of the mounting frame. The fixing hole is respectively opened on one side of the mounting frame and on the surface of the moving rod. A fixing rod is movably connected inside the fixing hole. The fixing rod is movably connected to one side of the mounting frame and extends through to the surface of the moving rod.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, by setting a dustproof mechanism, when dustproofing is applied, the connecting rod is first rotated by the movable shaft. Simultaneously, the protective outer sleeve rotates, allowing the protective outer sleeve and inner sleeve to fit more snugly against the bearings and ends with the use of sealing rings, achieving a more effective dustproof fit. When the protective sleeve is adjusted to a suitable position, the moving rod can move within the moving groove, causing the limiting rod to engage with the limiting groove and the limiting ring to achieve a limiting effect, thereby limiting the movable shaft and keeping it stable. When the protective outer sleeve needs to be adjusted for rotation, the moving rod can be used to drive the limiting... The rod moves inside the mounting frame, releasing its restriction on the limiting groove. It is then fixed inside the fixing hole by a fixing rod, ensuring the limiting rod is fixed and preventing obstruction of the rotation of the movable shaft. The dustproof mechanism effectively prevents foreign objects from entering the bearing, reducing bearing wear and lowering the probability of bearing failure due to foreign object ingress. The rotatable and adjustable protective sleeve rotates with the bearing, helping to disrupt the dust's movement trajectory and making it more difficult for dust to enter the bearing. Simultaneously, the protective sleeve can be adjusted according to actual working conditions to better fit the bearing surface, reducing gaps and further preventing the entry of dust, cutting fluid, and other foreign objects, protecting the stability of the bearing and electric spindle. Attached Figure Description

[0013] Figure 1 This utility model provides a schematic diagram of the overall structure of a dustproof device for a high-speed dynamic and static pressure permanent magnet electric spindle. Figure 2 This utility model provides a schematic diagram of the dustproof mechanism structure of a high-speed dynamic and static pressure permanent magnet electric spindle dustproof device; Figure 3This utility model proposes a dustproof device for a high-speed dynamic and static pressure permanent magnet electric spindle. Figure 2 Enlarged view of point A in the middle; Figure 4 This utility model provides a partial structural diagram of a dustproof device for a high-speed dynamic and static pressure permanent magnet electric spindle; Figure 5 This utility model proposes a dustproof device for a high-speed dynamic and static pressure permanent magnet electric spindle. Figure 4 Enlarged view of section B in the middle.

[0014] Legend: 1. Shaft body; 2. Mounting base; 3. End; 4. Bearing; 5. Mounting plate; 6. Dustproof mechanism; 61. Fixed frame; 62. Movable shaft; 63. Connecting rod; 64. Protective outer sleeve; 65. Protective inner sleeve; 66. Sealing ring; 67. Limiting ring; 68. Limiting groove; 69. Mounting frame; 610. Limiting spring; 611. Limiting rod; 612. Moving groove; 613. Moving rod; 614. Fixing hole; 615. Fixing rod. Detailed Implementation

[0015] Please see Figure 1-5 This utility model provides a technical solution: a dustproof device for a high-speed dynamic and static pressure permanent magnet electric spindle, including a spindle body 1, a mounting base 2 fixedly connected to the surface of the spindle body 1, an end 3 provided on one side of the spindle body 1, a bearing 4 provided on one side of the end 3, mounting plates 5 fixedly connected to both sides of the mounting base 2, and dustproof mechanisms 6 provided on both sides of the mounting base 2.

[0016] The specific setup and function of its dustproof mechanism 6 will be explained below.

[0017] In this embodiment: the dustproof mechanism 6 includes a fixed frame 61, which is fixedly connected to the surface of the mounting plate 5. A movable shaft 62 is rotatably connected between the inner walls of the fixed frame 61. A connecting rod 63 is fixedly connected to the surface of the movable shaft 62. A protective sleeve 64 is fixedly connected to the side of the connecting rod 63 away from the movable shaft 62. The protective sleeve 64 is movably connected to the surface of the bearing 4.

[0018] Specifically, the protective outer jacket 64 is internally fixedly connected to a protective inner sleeve 65, and a sealing ring 66 is provided on the upper surface of the protective inner sleeve 65.

[0019] Specifically, a limiting ring 67 is fixedly connected to the side of the movable shaft 62 away from the mounting plate 5, and a limiting groove 68 is formed on the surface of the limiting ring 67.

[0020] The aforementioned components achieve the following effects: the connecting rod 63 is driven to rotate by the movable shaft 62, which in turn drives the protective sleeve 64 to rotate simultaneously. This allows the protective sleeve 64 and the inner protective sleeve 65 to achieve a more secure dustproof fit against the bearing 4 and the end 3, thanks to the use of the sealing ring 66. The movable rod 613 can move within the movable groove 612, causing the limiting rod 611 to engage with the limiting groove 68 and the limiting ring 67 to achieve a limiting effect, thereby limiting the movable shaft 62 and keeping it stable. The adjustable protective sleeve increases the flexibility of the device during use and the comprehensiveness of protection.

[0021] Specifically, a mounting frame 69 is fixedly connected to the side of the fixed frame 61 near the limiting ring 67, and a limiting spring 610 is fixedly connected to the inside side of the mounting frame 69.

[0022] Specifically, a limiting rod 611 is fixedly connected to one side of the limiting spring 610, and the side of the limiting rod 611 away from the limiting spring 610 is engaged inside the limiting groove 68.

[0023] Specifically, the top of the mounting frame 69 is provided with a movable groove 612, and a movable rod 613 is movably connected inside the movable groove 612. The bottom of the movable rod 613 is fixedly connected to the top of the limiting rod 611.

[0024] Specifically, a fixing hole 614 is provided on one side of the mounting frame 69. The fixing hole 614 is provided on one side of the mounting frame 69 and on the surface of the moving rod 613. The fixing rod 615 is movably connected inside the fixing hole 614.

[0025] The effects achieved by the above components are as follows: by moving the moving rod 613 to move the limiting rod 611 inside the mounting frame 69, the limiting rod 611 is removed from the limiting groove 68. The limiting rod 615 is fixed inside the fixing hole 614, so that the limiting rod 611 is fixed and does not obstruct the rotation of the movable shaft 62. The dustproof mechanism 6 can effectively block foreign objects from entering the bearing 4, which can reduce the wear of the bearing 4, reduce the probability of bearing 4 failure caused by foreign objects entering, increase its protection of the shaft, and improve the service life of the equipment.

[0026] Working principle: By setting up the dustproof mechanism 6, when dustproofing is required, the connecting rod 63 is first rotated by the movable shaft 62. Simultaneously, the protective outer sleeve 64 rotates, allowing the protective outer sleeve 64 and the inner protective sleeve 65 to achieve a more secure dustproof fit against the bearing 4 and end 3 using the sealing ring 66. When the protective sleeve is adjusted to the appropriate position, the moving rod 613 moves within the moving groove 612, causing the limiting rod 611 to engage with the limiting groove 68 and the limiting ring 67, thus limiting the movable shaft 62 and keeping it stable. When the protective outer sleeve 64 needs to be adjusted for rotation, the moving rod 613 can be used to rotate it. The movable limit rod 611 moves inside the mounting frame 69, thus releasing its limit on the limit groove 68. It is then fixed inside the fixing hole 614 by the fixing rod 615, which fixes the limit rod 611 to avoid obstructing the rotation of its movable shaft 62. The dustproof mechanism 6 can effectively block foreign objects from entering the bearing 4, which can reduce the wear of the bearing 4 and reduce the probability of bearing 4 failure due to foreign object entry. The rotatable and adjustable protective sleeve can rotate with the bearing 4, which helps to disrupt the movement trajectory of dust and make it more difficult for dust to enter the bearing 4. At the same time, the protective sleeve can be adjusted according to the actual working conditions to better fit the surface of the bearing 4, reduce gaps, and further prevent foreign objects such as dust and cutting fluid from entering, thus protecting the stability of the bearing 4 and the electric spindle.

Claims

1. A dustproof device for high-speed dynamic and static pressure permanent magnet electric spindle, comprising a shaft body (1), characterized in that: A mounting base (2) is fixedly connected to the surface of the shaft body (1). An end (3) is provided on one side of the shaft body (1). A bearing (4) is provided on one side of the end (3). Mounting plates (5) are fixedly connected to both sides of the mounting base (2). Dustproof mechanisms (6) are provided on both sides of the mounting base (2). The dustproof mechanism (6) includes a fixed frame (61). The fixed frame (61) is fixedly connected to the surface of the mounting plate (5). A movable shaft (62) is rotatably connected between the inner walls of the fixed frame (61). A connecting rod (63) is fixedly connected to the surface of the movable shaft (62). A protective sleeve (64) is fixedly connected to the side of the connecting rod (63) away from the movable shaft (62). The protective sleeve (64) is movably connected to the surface of the bearing (4).

2. The dustproof device of a high-speed dynamic-hydrostatic pressure permanent magnet electric spindle according to claim 1, characterized in that: The protective outer jacket (64) is fixedly connected to the inner protective sleeve (65), and a sealing ring (66) is provided on the upper surface of the inner protective sleeve (65).

3. The dustproof device of the high-speed dynamic-static pressure permanent magnetic motorized spindle according to claim 1, characterized in that: The movable shaft (62) is fixedly connected to a limiting ring (67) on the side away from the mounting plate (5), and a limiting groove (68) is formed on the surface of the limiting ring (67).

4. The dustproof device of the high-speed dynamic-static pressure permanent magnetic motorized spindle according to claim 3, characterized in that: The mounting frame (69) is fixedly connected to the side of the fixed frame (61) near the limiting ring (67), and the limiting spring (610) is fixedly connected to the inside side of the mounting frame (69).

5. The dustproof device of a high-speed dynamic-hydrostatic pressure permanent magnet electric spindle according to claim 4, characterized in that: One side of the limiting spring (610) is fixedly connected to a limiting rod (611), and the side of the limiting rod (611) away from the limiting spring (610) is engaged inside the limiting groove (68).

6. The dustproof device of a high-speed dynamic-hydrostatic pressure permanent-magnet electric main shaft according to claim 5, characterized in that: The top of the mounting frame (69) is provided with a movable groove (612), and a movable rod (613) is movably connected inside the movable groove (612). The bottom of the movable rod (613) is fixedly connected to the top of the limiting rod (611).

7. The dustproof device of a high-speed dynamic-hydrostatic pressure permanent magnet electric spindle according to claim 6, characterized in that: A fixing hole (614) is provided on one side of the mounting frame (69). The fixing hole (614) is respectively opened on one side of the mounting frame (69) and the surface of the moving rod (613). A fixing rod (615) is movably connected inside the fixing hole (614).

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