Machining center spindle box body protective cover

Abstract

The utility model discloses a machining center spindle box body protective cover which comprises a machining stand column and a spindle installation frame, the spindle installation frame is movably arranged in the machining stand column, the top side of the inner wall of the machining stand column is fixedly connected with a first fixed protective cover, and the bottom side of the inner wall of the machining stand column is fixedly connected with a second fixed protective cover. The bottom side of the second fixed protective cover is movably connected with a first movable protective cover, the second movable protective cover does not need to be lifted, shrunk and pulled down to extend through a driving mechanism of the spindle box, power consumption of the driving mechanism of the spindle box is reduced, and when the internal structure of the machining stand column is overhauled, the machining stand column is not damaged. The second movable protective cover can be controlled to automatically contract, the interior of the machining stand column is exposed, detection and maintenance are convenient, the impact strength of the whole protective cover structure can be improved, the movable cover plate can be conveniently detached and replaced, and the cost for replacing and detaching the whole protective cover is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machining centers, in particular to a protective cover for a spindle box of a machining center. Background Art

[0002] Usually, the protective cover of the gantry spindle box is an integral structure. The advantage of the integral structure is good rigidity, but the disadvantage is poor maintainability. When the components in the spindle box are damaged or have problems and need repair, the entire cover must be removed. However, the integral cover is heavy and large in size, and requires the cooperation of multiple people to disassemble and assemble, which makes maintenance very inconvenient.

[0003] In the prior art, application No. 202223357062.7 discloses a protective cover for the spindle box of a gantry machining center, comprising an upper protective cover, a lower protective cover and an oil receiving pan, wherein the upper protective cover is bent backward to form a top cover, the bottom of the upper protective cover is connected to the lower protective cover, and the bottom end of the lower protective cover is connected to the oil receiving pan; balancing cylinder protective covers are arranged on both sides of the upper protective cover; the protective effect of the above-mentioned device is not comprehensive enough, and the machining head of the machining center is mostly driven by a screw rod. Since metal debris flies up when the machining head processes the workpiece, these metal debris are easy to cause damage to the screw rod once they fly into the inside of the screw rod, but the existing folding protective cover is folded and stretched by the lifting of the spindle box, which will increase the power consumption of the spindle box lifting mechanism, and the protective cover is an integral structure, and it is impossible to quickly detect and repair the internal structure of the column of the machining center. The protective cover needs to be disassembled to complete the detection and maintenance operations, and the strength of the protective cover is not high, and it is easy to be dented after long-term use, and the protective cover cannot be conveniently replaced.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a spindle box protective cover for a machining center to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A protective cover for a spindle box of a machining center comprises a machining column and a spindle mounting frame, wherein the spindle mounting frame is movably arranged inside the machining column, a first fixed protective cover is fixedly connected to the top side of the inner wall of the machining column, a second fixed protective cover is fixedly connected to the bottom side of the inner wall of the machining column, a first movable protective cover is movably connected to the bottom side of the second fixed protective cover, a second movable protective cover is movably engaged with the inner side of the first fixed protective cover, a drive plate is fixedly connected to the front side of the left portion of the machining column, and the drive plate passes through the inner side of the machining column.

[0008] Preferably, the first movable protective cover comprises a first movable cover plate and a second movable cover plate, wherein the second movable cover plate is movably embedded in the first movable cover plate and is slidably connected to the inner wall of the first movable cover plate.

[0009] Preferably, the bottom side of the second movable cover plate is movably abutted against the top side of the main shaft mounting frame, the top side of the first movable protective cover is fixedly connected to the bottom side of the main shaft mounting frame, the top side of the inner wall of the first movable cover plate and the top side of the inner wall of the second movable cover plate are respectively fixedly connected with limiting plates, and the middle part of the front side of the limiting plates is symmetrically connected with connecting rods through a rotating axis.

[0010] Preferably, the bottom end of the upper connecting rod and the top end of the lower connecting rod are respectively connected by a rotating shaft, and a buffer pad is symmetrically embedded and fixed on the front side of the top of the lower limiting plate, and the buffer pad runs through the front side of the limiting plate.

[0011] Preferably, a servo motor is provided above the driving plate wall cavity, a rectangular groove is dug inside the driving plate, a threaded rod is connected to the bottom side of the inner wall of the rectangular groove through a bearing, and guide rods are provided on both sides of the threaded rod.

[0012] Preferably, both ends of the guide rod are fixedly connected to the inner wall of the rectangular groove, a lifting block is sleeved on the outer side of the guide rod and the threaded rod, a nut is passed through the inside of the lifting block through a bearing, and the nut is threadedly connected to the threaded rod through a matching thread, and the inner side of the lifting block is fixedly connected to the left bottom of the second movable cover plate.

[0013] Preferably, connecting grooves are dug on the outer walls of the first fixed protective cover, the second fixed protective cover, the first movable cover plate, and the second movable cover plate, and a steel plate mesh is fixed through the rear side of the inner wall of the connecting groove.

[0014] Preferably, a movable cover plate is movably engaged inside the connecting groove, and positioning bolts are respectively provided at the four corners of the outer wall of the movable cover plate, and the inner ends of the positioning bolts are threadedly connected to the four corners of the rear side of the inner wall of the connecting groove.

[0015] The beneficial effects of the utility model are as follows: there is no need to lift, retract, or pull down and extend the second movable protective cover through the driving mechanism of the spindle box, thereby reducing the power consumption of the driving mechanism of the spindle box, and when the internal structure of the processing column is inspected and repaired, the second movable protective cover can be controlled to shrink autonomously to expose the inside of the processing column, which is convenient for inspection and maintenance, and can increase the impact resistance of the overall protective cover structure, facilitate the removal and replacement of the movable cover plate, and reduce the cost of replacing and disassembling the overall protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of a spindle box protective cover of a machining center according to an embodiment of the utility model;

[0018] Figure 2 It is a schematic diagram of the internal structure of a second movable protective cover of a spindle box protective cover of a machining center according to an embodiment of the utility model;

[0019] Figure 3 It is a schematic diagram of the internal structure of a driving plate of a spindle box protective cover of a machining center according to an embodiment of the utility model;

[0020] Figure 4 The utility model is a schematic diagram of the cross-sectional structure of a first movable cover plate of a spindle box protective cover of a machining center according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Processing column; 2. Spindle mounting frame; 3. First fixed protective cover; 4. Second fixed protective cover; 5. First movable protective cover; 6. Second movable protective cover; 7. Driving plate; 8. First movable cover plate; 9. Second movable cover plate; 10. Limiting plate; 11. Connecting rod; 12. Buffer pad; 13. Servo motor; 14. Rectangular groove; 15. Threaded rod; 16. Guide rod; 17. Lifting block; 18. Connecting groove; 19. Steel plate mesh; 20. Movable cover plate; 21. Positioning bolt. DETAILED DESCRIPTION

[0023] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] According to an embodiment of the utility model, a protective cover for a spindle box of a machining center is provided.

[0025] Embodiment 1

[0026] like Figure 1-4As shown, according to an embodiment of the utility model, a protective cover for a spindle box of a machining center comprises a machining column 1 and a spindle mounting frame 2. The spindle mounting frame 2 is movably arranged inside the machining column 1. A first fixed protective cover 3 is fixedly connected to the top side of the inner wall of the machining column 1. A second fixed protective cover 4 is fixedly connected to the bottom side of the inner wall of the machining column 1. A first movable protective cover 5 is movably connected to the bottom side of the second fixed protective cover 4. A second movable protective cover 6 is movably engaged inside the first fixed protective cover 3. A second movable protective cover 6 is fixedly connected to the front side of the left part of the machining column 1. The driving plate 7 penetrates the inner side of the processing column 1, the first movable protective cover 5 includes a first movable cover plate 8 and a second movable cover plate 9, the second movable cover plate 9 is movably embedded in the first movable cover plate 8, and is slidably connected to the inner wall of the first movable cover plate 8, the bottom side of the second movable cover plate 9 is movably abutted against the top side of the spindle mounting frame 2, the top side of the first movable protective cover 5 is fixedly connected to the bottom side of the spindle mounting frame 2, the top side of the inner wall of the first movable cover plate 8 and the top side of the inner wall of the second movable cover plate 9 are respectively fixedly connected to the limit plate 10, the limit plate 1 0 is symmetrically connected with connecting rods 11 through rotating shafts in the middle of the front side, the bottom end of the upper connecting rod 11 is connected with the top end of the lower connecting rod 11 through rotating shafts, and a buffer pad 12 is symmetrically embedded and fixed on the front side of the top of the lower limit plate 10. The buffer pad 12 passes through the front side of the limit plate 10. The spindle box is installed inside the spindle installation frame 2. The height of the spindle box is adjusted by the screw lifting mechanism inside the processing column 1 for processing. When the spindle installation frame 2 is lowered, the first movable protective cover 5 is pressed down, so that the first movable protective cover 5 is retracted into the second fixed Inside the fixed protective cover 4, when the spindle mounting frame 2 rises, the second movable protective cover 6 retracts into the second fixed protective cover 4, and the spindle mounting frame 2 continues to be lifted, which will lift the second movable cover plate 9 and retract it into the first movable cover plate 8. During the retraction of the second movable cover plate 9, under the action of the diamond-shaped connecting rod 11, the retraction stability of the second movable cover plate 9 can be improved, and after the first movable cover plate 8 and the second movable cover plate 9 retract and overlap, the buffer pad 12 can reduce the impact force of the lifting of the second movable cover plate 9.

[0027] Embodiment 2

[0028] like Figure 1-4As shown, a protective cover for a spindle box of a machining center according to an embodiment of the utility model comprises a machining column 1 and a spindle mounting frame 2, wherein the spindle mounting frame 2 is movably arranged inside the machining column 1, a first fixed protective cover 3 is fixedly connected to the top side of the inner wall of the machining column 1, a second fixed protective cover 4 is fixedly connected to the bottom side of the inner wall of the machining column 1, a first movable protective cover 5 is movably connected to the bottom side of the second fixed protective cover 4, a second movable protective cover 6 is movably engaged with the inner side of the first fixed protective cover 3, a driving plate 7 is fixedly connected to the front side of the left part of the machining column 1, the driving plate 7 passes through the inner side of the machining column 1, a servo motor 13 is arranged above the wall cavity of the driving plate 7, a rectangular groove 14 is dug inside the driving plate 7, a threaded rod 15 is connected to the bottom side of the inner wall of the rectangular groove 14 through a bearing, guide rods 16 are arranged on both sides of the threaded rod 15, two ends of the guide rod 16 are fixedly connected to the inner wall of the rectangular groove 14, a lifting block 17 is sleeved on the outer side of the guide rod 16 and the threaded rod 15, and the lifting block 17 A nut is provided through the bearing inside, and the nut is threadedly connected to the threaded rod 15 through the matching threaded connection. The inner side of the lifting block 17 is fixedly connected to the left bottom of the second movable cover plate 9. During the retraction of the second movable protective cover 6, the output shaft of the servo motor 13 drives the threaded rod 15 to rotate, and the lifting block 17 on the outer side of the threaded rod 15 and the guide rod 16 drives the lifting block 17 to rise or fall, so that the second movable cover plate 9 connected to the lifting block 17 can be lifted and lowered along with the spindle mounting frame 2. The rotation speed of the output shaft of the servo motor 13 can be controlled so that the second movable cover plate 9 can always be tightly fitted on the spindle mounting frame 2 for telescopic adjustment. There is no need to lift, retract, pull down and extend the second movable protective cover 6 through the driving mechanism of the spindle box, which reduces the power consumption of the driving mechanism of the spindle box. When the internal structure of the processing column 1 is inspected and repaired, the second movable protective cover 6 can be controlled to shrink autonomously to expose the inside of the processing column 1 for convenient inspection and maintenance.

[0029] Embodiment 3

[0030] like Figure 1-4As shown, a protective cover for a spindle box of a machining center according to an embodiment of the utility model comprises a machining column 1 and a spindle mounting frame 2, the spindle mounting frame 2 is movably arranged inside the machining column 1, a first fixed protective cover 3 is fixedly connected to the top side of the inner wall of the machining column 1, a second fixed protective cover 4 is fixedly connected to the bottom side of the inner wall of the machining column 1, a first movable protective cover 5 is movably connected to the bottom side of the second fixed protective cover 4, a second movable protective cover 6 is movably engaged with the inner side of the first fixed protective cover 3, a driving plate 7 is fixedly connected to the front side of the left part of the machining column 1, the driving plate 7 passes through the inner side of the machining column 1, and connecting grooves 18 are dug on the outer walls of the first fixed protective cover 3, the second fixed protective cover 4, the first movable cover plate 8, and the second movable cover plate 9, and the inner wall rear side of the connecting groove 18 passes through a fixed There is a steel plate mesh 19, and a movable cover plate 20 is movably embedded in the connecting groove 18. Positioning bolts 21 are respectively penetrated at the four corners of the outer wall of the movable cover plate 20, and the inner ends of the positioning bolts 21 are threadedly connected with the four corners of the rear side of the inner wall of the connecting groove 18. The first fixed protective cover 3, the second fixed protective cover 4, the first movable cover plate 8, and the second movable cover plate 9 are all embedded and fixed with movable cover plates 20 on the outer walls. The steel plate mesh 19 is fitted and fixed on the inner side of the movable cover plate 20, which can increase the impact resistance of the overall protective cover structure and avoid the situation where dents are easily caused by accidental collisions. The movable cover plate 20 is connected and fixed to the inner wall of the connecting groove 18 by the positioning bolts 21, which is convenient for removing and replacing the movable cover plate 20, and reduces the cost of replacing and disassembling the overall protective cover.

[0031] In summary, with the help of the above-mentioned technical solution of the utility model, when the device is in use, the spindle box is installed inside the spindle installation frame 2, and the height of the spindle box is adjusted by the screw lifting mechanism inside the processing column 1 for processing. When the spindle installation frame 2 is lowered, the first movable protective cover 5 will be pressed down, so that the first movable protective cover 5 will be retracted into the second fixed protective cover 4. When the spindle installation frame 2 is raised, the second movable protective cover 6 will be retracted into the second fixed protective cover 4. The spindle installation frame 2 is continuously lifted. Under the action of the diamond-shaped connecting rod 11, the second movable cover plate 9 will be lifted up and retracted into the first movable cover plate 8. During the retraction of the second movable cover plate 9, During the retraction of the protective cover 6, the output shaft of the servo motor 13 drives the threaded rod 15 to rotate, and the lifting block 17 on the outside of the threaded rod 15 and the guide rod 16 drives the lifting block 17 to rise or fall, so that the second movable cover plate 9 connected to the lifting block 17 can be raised and lowered along with the spindle mounting frame 2. The rotation speed of the output shaft of the servo motor 13 can be controlled so that the second movable cover plate 9 can always be tightly fitted to the spindle mounting frame 2 for telescopic adjustment. When the internal structure of the processing column 1 is inspected and repaired, the second movable protective cover 6 can be controlled to shrink autonomously. The movable cover plate 20 is connected and fixed to the inner wall of the connecting groove 18 by the positioning bolts 21, which is convenient for removing and replacing the movable cover plate 20.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective cover for a spindle housing of a machining center, comprising a machining column (1) and a spindle mounting frame (2), characterized in that: The spindle mounting frame (2) is movably arranged inside the processing column (1); a first fixed protective cover (3) is fixedly connected to the top side of the inner wall of the processing column (1); a second fixed protective cover (4) is fixedly connected to the bottom side of the inner wall of the processing column (1); a first movable protective cover (5) is movably connected to the bottom side of the second fixed protective cover (4); a second movable protective cover (6) is movably engaged inside the first fixed protective cover (3); a driving plate (7) is fixedly connected to the front side of the left part of the processing column (1); and the driving plate (7) passes through the inner side of the processing column (1).

2. The protective cover for the spindle housing of a machining center according to claim 1, characterized in that: The first movable protective cover (5) comprises a first movable cover plate (8) and a second movable cover plate (9); the second movable cover plate (9) is movably embedded in the first movable cover plate (8) and is slidably connected to the inner wall of the first movable cover plate (8).

3. The protective cover for the spindle housing of a machining center according to claim 2, characterized in that: The bottom side of the second movable cover plate (9) is movably abutted against the top side of the main shaft mounting frame (2); the top side of the first movable protective cover (5) is fixedly connected to the bottom side of the main shaft mounting frame (2); the top side of the inner wall of the first movable cover plate (8) and the top side of the inner wall of the second movable cover plate (9) are respectively fixedly connected to a limit plate (10); and the middle part of the front side of the limit plate (10) is symmetrically connected to a connecting rod (11) via a rotating shaft.

4. A protective cover for a spindle box of a machining center according to claim 3, characterized in that: The bottom end of the upper connecting rod (11) and the top end of the lower connecting rod (11) are respectively connected via a rotating shaft, and a buffer pad (12) is symmetrically embedded and fixed on the front side of the top of the lower limiting plate (10), and the buffer pad (12) passes through the front side of the limiting plate (10).

5. The protective cover for the spindle housing of a machining center according to claim 4, characterized in that: A servo motor (13) is provided above the wall cavity of the driving plate (7), a rectangular groove (14) is excavated inside the driving plate (7), a threaded rod (15) is connected to the bottom of the inner wall of the rectangular groove (14) via a bearing, and guide rods (16) are provided on both sides of the threaded rod (15).

6. A machining center spindle housing protective cover according to claim 5, characterized in that: The two ends of the guide rod (16) are fixedly connected to the inner wall of the rectangular groove (14); a lifting block (17) is sleeved on the outer side of the guide rod (16) and the threaded rod (15); a nut is passed through the inside of the lifting block (17) via a bearing, and the nut is threadedly connected to the threaded rod (15); the inner side of the lifting block (17) is fixedly connected to the left bottom of the second movable cover plate (9).

7. A protective cover for a spindle box of a machining center according to claim 6, characterized in that: The outer walls of the first fixed protective cover (3), the second fixed protective cover (4), the first movable cover plate (8) and the second movable cover plate (9) are all provided with connecting grooves (18), and a steel plate mesh (19) is fixedly passed through the rear side of the inner wall of the connecting groove (18).

8. The protective cover for a spindle housing of a machining center according to claim 7, characterized in that: A movable cover plate (20) is movably engaged inside the connecting groove (18), and positioning bolts (21) are respectively provided at four corners of the outer wall of the movable cover plate (20), and the inner ends of the positioning bolts (21) are threadedly connected to the four corners at the rear side of the inner wall of the connecting groove (18).

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