Reinforced spindle head for machine tool

Abstract

The utility model discloses a reinforced spindle head for a machine tool, which relates to the technical field of machine tool spindles and comprises a spindle body, a driving shaft and a stable reinforcing component, the bottom of the spindle body is connected with the driving shaft, a driving gear is fixed on the outer side of the middle of the driving shaft, and the stable reinforcing component is mounted on the outer side of the spindle body. And the stability reinforcing assembly comprises a thrust ball bearing, angular contact ball bearings, a reinforcing outer sleeve and a limiting groove, the thrust ball bearing is installed on the outer side of the middle of the main shaft body, and the angular contact ball bearings are installed on the outer sides of the upper edge and the lower edge of the main shaft body correspondingly. According to the reinforced spindle head for the machine tool, the reinforcing outer sleeve is used for reinforcing protection of the spindle body, the situation that rotation is affected due to damage and deformation of the spindle body caused by external force impact is avoided, and the thrust ball bearing and the angular contact ball bearing arranged between the reinforcing outer sleeve and the spindle body can bear axial loads in two directions; and the rotation stability of the main shaft body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool spindles, in particular to a reinforced spindle head for machine tools. Background Art

[0002] A machine tool spindle is the shaft that rotates the workpiece or tool on a machine tool. It typically consists of a spindle, bearings, and transmission components (gears or pulleys). In a machine, it primarily supports transmission components like gears and pulleys, transmitting motion and torque.

[0003] Existing spindle heads usually adopt a single shaft body structure, which is easily damaged and deformed by external force during use, thereby affecting the rotation, affecting the rotation accuracy, and interfering with the processing of the machine tool.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a reinforced spindle head for machine tools is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a reinforced spindle head for a machine tool to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reinforced spindle head for a machine tool, comprising a spindle body, a drive shaft and a stabilizing reinforcement assembly, the bottom of the spindle body being connected to the drive shaft, and a drive gear being fixed to the outer side of the middle part of the drive shaft, a stabilizing reinforcement assembly being installed on the outer side of the spindle body, and the stabilizing reinforcement assembly comprising a thrust ball bearing, an angular contact ball bearing, a reinforcing sleeve and a limit groove, a thrust ball bearing being installed on the outer side of the middle part of the spindle body, and angular contact ball bearings being installed on the outer sides of the upper and lower sides of the spindle body, a reinforcing sleeve being installed on the outer sides of the thrust ball bearing and the angular contact ball bearing, and a limit groove corresponding to the thrust ball bearing and the angular contact ball bearing being provided on the inner side of the reinforcing sleeve.

[0007] Furthermore, the stabilizing reinforcement component also includes a flange and a slide frame. Flanges are integrally fixed to the outer sides of the upper and lower ends of the reinforcement sleeve. A slide frame is provided above the upper flange, and a support frame is connected below the lower flange.

[0008] Furthermore, a top plate is fixed above the main shaft body, and an annular sliding cover is fixed on the lower side of the top plate, and the annular sliding cover is slidably connected to the slide frame.

[0009] Furthermore, a connecting assembly is installed above the top plate, and the connecting assembly includes a circular boss and a cross slot. The circular boss is fixedly connected to the top plate, and a cross slot is provided in the middle of the circular boss.

[0010] Furthermore, the connecting assembly also includes a mounting seat, a cross insert and a threaded barrel. The mounting seat is installed on the upper outer side of the circular boss, and a threaded barrel is fixed on the outer side of the mounting seat. A cross insert is fixed in the middle inner groove of the mounting seat, and the cross insert and the cross groove are snap-fitted.

[0011] Furthermore, a fixing seat is fixed above the middle of the mounting seat, and the vertical center lines of the fixing seat, the mounting seat and the main shaft body coincide with each other.

[0012] The utility model provides a reinforced spindle head for machine tools, which has the following beneficial effects:

[0013] The utility model is provided with a stabilizing reinforcement component. The reinforcing sleeve is used to provide reinforced protection for the main shaft body to prevent the main shaft body from being damaged and deformed by external force impact and thus affecting the rotation. The support frame is used to support the reinforcing sleeve. The thrust ball bearing and angular contact ball bearing arranged between the reinforcing sleeve and the main shaft body can withstand axial loads in two directions, thereby improving the rotation stability of the main shaft body. When the main shaft body drives the top plate at its top to rotate, the annular sliding cover of the top plate can be slidably connected to the slide frame, thereby making the top plate and the mounting seat and fixed seat above it rotate stably.

[0014] The utility model is provided with a connecting assembly, and the mounting seat can be installed above the top plate, that is, on the outside of the circular boss. At this time, the cross insert in the middle inner groove of the mounting seat can be clamped into the cross groove so that they are clamped in pairs, and the mounting seat is fixedly connected to the fixing seat. The mounting seat, the fixing seat and the top plate can be assembled by passing the threaded tube of the mounting seat and the top plate through the bolt, so that when the fixing seat is damaged, only the component can be replaced without replacing the entire spindle head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the exploded structure of a reinforced spindle head for a machine tool according to the utility model;

[0016] Figure 2 This is a schematic diagram of a half-section structure of a reinforced spindle head for a machine tool according to the present invention;

[0017] Figure 3 The utility model is a schematic diagram of the external structure of a reinforced spindle head for a machine tool.

[0018] In the figure: 1. Spindle body; 2. Drive shaft; 3. Drive gear; 4. Stabilizing reinforcement assembly; 401. Thrust ball bearing; 402. Angular contact ball bearing; 403. Reinforced sleeve; 404. Limiting groove; 405. Flange; 406. Slide frame; 5. Support frame; 6. Top plate; 7. Annular sliding cover; 8. Connecting assembly; 801. Circular boss; 802. Cross groove; 803. Mounting seat; 804. Cross insert; 805. Threaded barrel; 9. Fixed seat. DETAILED DESCRIPTION

[0019] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] like Figure 1-Figure 2 As shown, a reinforced spindle head for a machine tool comprises a spindle body 1, a drive shaft 2 and a stabilizing and reinforcing assembly 4. The bottom of the spindle body 1 is connected to the drive shaft 2, and a drive gear 3 is fixed to the middle outer side of the drive shaft 2. The outer side of the spindle body 1 is provided with a stabilizing and reinforcing assembly 4, and the stabilizing and reinforcing assembly 4 comprises a thrust ball bearing 401, an angular contact ball bearing 402, a reinforcing sleeve 403 and a limiting groove 404. The outer side of the middle of the spindle body 1 is provided with a thrust ball bearing 401, and the outer sides of the upper and lower sides of the spindle body 1 are provided with angular contact ball bearings 402. The thrust ball bearings 401, angular contact ball bearings 402, A reinforcing sleeve 403 is installed on the outer side of the contact ball bearing 402, and a limiting groove 404 corresponding to the thrust ball bearing 401 and the angular contact ball bearing 402 is provided on the inner side of the reinforcing sleeve 403; the reinforcing sleeve 403 is used to strengthen the protection of the main shaft body 1 to prevent the main shaft body 1 from being damaged and deformed by external force impact and thus affecting the rotation. The support frame 5 is used to support the reinforcing sleeve 403. The thrust ball bearing 401 and the angular contact ball bearing 402 arranged between the reinforcing sleeve 403 and the main shaft body 1 can withstand axial loads in two directions, thereby improving the rotation stability of the main shaft body 1.

[0021] like Figure 2-Figure 3 As shown, the stabilizing reinforcement component 4 also includes a flange 405 and a slide frame 406. The flanges 405 are integrally fixed to the outer sides of the upper and lower ends of the reinforcing sleeve 403. A slide frame 406 is provided above the upper flange 405, and a support frame 5 is connected below the lower flange 405. A top plate 6 is fixed above the spindle body 1, and an annular sliding cover 7 is fixed to the lower side of the top plate 6, and the annular sliding cover 7 is slidably connected to the slide frame 406. A connecting component 8 is installed above the top plate 6, and the connecting component 8 includes a circular boss 801 and a cross groove 802. The circular boss 801 is fixedly connected to the top plate 6, and a cross groove 802 is provided in the middle of the circular boss 801; when the spindle body 1 drives the top plate 6 at its top to rotate, the annular sliding cover 7 of the top plate 6 can be slidably connected to the slide frame 406, thereby making the top plate 6 and the mounting seat 803 and the fixing seat 9 above it rotate stably.

[0022] like Figure 1-Figure 2As shown, the connecting assembly 8 also includes a mounting seat 803, a cross insert 804 and a threaded barrel 805. The mounting seat 803 is installed on the upper outer side of the circular boss 801, and the threaded barrel 805 is fixed on the outer side of the mounting seat 803. The cross insert 804 is fixed in the middle inner groove of the mounting seat 803, and the cross insert 804 is connected to the cross groove 802 in a snap-fitting manner. A fixing seat 9 is fixed on the upper middle part of the mounting seat 803, and the vertical center lines of the fixing seat 9, the mounting seat 803 and the spindle shaft body 1 coincide with each other; The seat 803 can be installed above the top plate 6, that is, on the outside of the circular boss 801. At this time, the cross insert 804 in the middle inner groove of the mounting seat 803 can be inserted into the cross groove 802 to make them connected in pairs. The mounting seat 803 is fixedly connected to the fixing seat 9. The mounting seat 803, the fixing seat 9 and the top plate 6 can be assembled by bolts passing through the threaded tube 805 of the mounting seat 803 and the top plate 6. Therefore, when the fixing seat 9 is damaged, only the component can be replaced without replacing the entire spindle head.

[0023] In summary, if Figure 1-Figure 3 As shown, the machine tool uses a reinforced spindle head. When in use, a thrust ball bearing 401, an angular contact ball bearing 402 and a reinforced sleeve 403 can be first arranged on the outside of the spindle shaft body 1, so that the reinforced sleeve 403 can provide enhanced protection for the spindle shaft body 1, and the support frame 5 can support the reinforced sleeve 403. Then, during use, the thrust ball bearing 401 and the angular contact ball bearing 402 arranged between the reinforced sleeve 403 and the spindle shaft body 1 can withstand axial loads in two directions, thereby improving the rotational stability of the spindle shaft body 1. When the spindle shaft body 1 drives the top plate 6 on its top to rotate, the annular sliding cover 7 of the top plate 6 can be aligned with the slide frame 40 6 is slidably connected, thereby making the top plate 6 and the mounting seat 803 and the fixing seat 9 above it rotate stably. When the fixing seat 9 needs to be replaced, the fixing seat 9 and the mounting seat 803 can be removed, and then the new mounting seat 803 can be installed above the top plate 6, that is, on the outside of the circular boss 801. At this time, the cross insert 804 in the middle inner groove of the mounting seat 803 can be inserted into the cross groove 802 to make them connected in pairs. Then, the threaded barrel 805 of the mounting seat 803 and the top plate 6 are penetrated by bolts to realize the assembly between the mounting seat 803, the fixing seat 9 and the top plate 6, thereby completing the use process of the reinforced spindle head for the machine tool.

[0024] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. A reinforced spindle head for a machine tool, comprising a spindle shaft body (1), a drive shaft (2) and a stabilizing and reinforcing assembly (4), characterized in that: The bottom of the main shaft body (1) is connected to a driving shaft (2), and a driving gear (3) is fixed to the outer side of the middle part of the driving shaft (2); a stabilizing reinforcement component (4) is installed on the outer side of the main shaft body (1), and the stabilizing reinforcement component (4) includes a thrust ball bearing (401), an angular contact ball bearing (402), a reinforcing sleeve (403) and a limiting groove (404); a thrust ball bearing (401) is installed on the outer side of the middle part of the main shaft body (1), and angular contact ball bearings (402) are installed on the outer sides of the upper and lower sides of the main shaft body (1); a reinforcing sleeve (403) is installed on the outer sides of the thrust ball bearing (401) and the angular contact ball bearing (402), and a limiting groove (404) corresponding to the thrust ball bearing (401) and the angular contact ball bearing (402) is provided on the inner side of the reinforcing sleeve (403).

2. The reinforced spindle head for machine tools according to claim 1, characterized in that: The stabilizing reinforcement component (4) further comprises a flange (405) and a slide frame (406); flanges (405) are integrally fixed to the outer sides of the upper and lower ends of the reinforcement jacket (403); a slide frame (406) is provided above the upper flange (405); and a support frame (5) is connected below the lower flange (405).

3. The reinforced spindle head for machine tools according to claim 2, characterized in that: A top plate (6) is fixed above the main shaft body (1), and an annular sliding cover (7) is fixed on the lower side of the top plate (6), and the annular sliding cover (7) is slidably connected to the slide frame (406).

4. The reinforced spindle head for machine tools according to claim 3, characterized in that: A connecting assembly (8) is installed above the top plate (6), and the connecting assembly (8) includes a circular boss (801) and a cross slot (802). The circular boss (801) is fixedly connected to the top plate (6), and a cross slot (802) is provided in the middle of the circular boss (801).

5. The reinforced spindle head for machine tools according to claim 4, characterized in that: The connecting assembly (8) further comprises a mounting seat (803), a cross insert (804) and a threaded barrel (805); the mounting seat (803) is mounted on the upper outer side of the circular boss (801), and the threaded barrel (805) is fixed on the outer side of the mounting seat (803); a cross insert (804) is fixed in the middle inner groove of the mounting seat (803), and the cross insert (804) and the cross groove (802) are snap-fitted.

6. The reinforced spindle head for machine tools according to claim 5, characterized in that: A fixing seat (9) is fixed above the middle of the mounting seat (803), and the vertical center lines of the fixing seat (9), the mounting seat (803), and the main shaft body (1) coincide with each other.

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