Rigid anti-collision mechanism for main shaft of machining center

Abstract

The utility model discloses a rigid anti-collision mechanism for a main shaft of a machining center, which is applied to the field of main shaft protection and comprises a main shaft rod, two shaft seats are sleeved on the surface of the main shaft rod in a sliding manner, bearings fixedly sleeved with the main shaft rod are mounted in the shaft seats, and an upper frame and a lower frame are respectively arranged at the top and the bottom of each shaft seat. Fixing bolts are arranged on the two sides of the upper frame and the two sides of the lower frame in a penetrating mode, threaded holes used in cooperation with the fixing bolts are formed in the shaft seats, a bottom plate is arranged at the bottom of the lower frame, connecting plates are symmetrically installed at the top, the front end and the rear end of the bottom plate, threaded rods are welded to the front face and the back face of the lower frame, and the threaded rods are connected with the threaded rods. And a sliding groove is formed in the connecting plate. The outer frame can be conveniently replaced, the burden of dismantling lower components is avoided, the working efficiency is improved, practicability is high, meanwhile, the adjustable supporting function can be achieved, operation is easy and convenient, the stability of the device is improved, and flexibility is good.

Description

Technical Field

[0001] This utility model relates to the field of spindle protection, and in particular to a rigid anti-collision mechanism for machining center spindles. Background Technology

[0002] Currently, Chinese utility model patent CN216097846U discloses a tool magazine spindle anti-collision protection mechanism for vertical machining centers. While this mechanism, by adding a protective cover to the spindle surface, can prevent direct impact from foreign objects, it has other problems during use. For example, it is inconvenient to replace the anti-collision frame; the frame may age or break after prolonged use; and replacement is time-consuming and labor-intensive because the frame is a single piece, requiring the removal of the tool holder and cutting tools from the spindle before removal. Furthermore, it lacks adjustable support. To prevent the anti-collision frame from wobbling due to spindle rotation, its bottom needs to be lowered to the table surface. However, the spindle's height from the table varies, requiring additional padding when it cannot reach the bottom, resulting in poor stability. To address these problems, we propose a rigid anti-collision mechanism for machining center spindles. Utility Model Content

[0003] The purpose of this invention is to provide a rigid anti-collision mechanism for machining center spindles, which solves the problems of existing anti-collision mechanisms being inconvenient to replace the outer frame and lacking adjustable support function.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a rigid anti-collision mechanism for a machining center spindle, comprising a spindle rod, two bearing seats slidably sleeved on the surface of the spindle rod, bearings fixedly sleeved on the spindle rod inside the bearing seats, an upper frame and a lower frame respectively provided at the top and bottom of the bearing seats, fixing bolts passing through both sides of the upper frame and the lower frame, threaded holes for cooperating with the fixing bolts being opened inside the bearing seats, a base plate provided at the bottom of the lower frame, connecting plates symmetrically installed at the top, front end and rear end of the base plate, threaded rods welded to the front and back of the lower frame, sliding grooves being opened inside the connecting plates, and nuts being threadedly connected to the surface of the threaded rods.

[0005] The above technical solution facilitates the replacement of the outer frame, eliminates the burden of dismantling the lower components, improves work efficiency, and is highly practical. It also features adjustable support, is easy to operate, and enhances its stability and flexibility.

[0006] The present invention is further configured such that a limiting plate is bolted to the other side of the bearing seat.

[0007] By adopting the above technical solution, the bearing inside the bearing seat can be limited by the setting of the limiting plate, so as to prevent the bearing seat from separating from the internal bearing.

[0008] The present invention is further configured such that the surfaces of the upper frame and the lower frame are coated with anti-corrosion coating.

[0009] By adopting the above technical solution and applying anti-corrosion coating, the anti-corrosion and moisture-proof effects of the upper and lower frame surfaces can be improved.

[0010] The present invention is further configured such that a spring washer that is in contact with the connecting plate is slidably sleeved on the surface of the threaded rod.

[0011] By adopting the above technical solution and setting the spring washer, the fixing effect of the nut after tightening can be improved, and it plays a role in shock prevention and loosening prevention.

[0012] The present invention is further configured such that: a mounting hole is provided on the top of the base plate.

[0013] By adopting the above technical solution, the installation holes make it easy for personnel to fix the base plate with screws.

[0014] The present invention is further configured such that both the threaded rod and the nut are made of stainless steel.

[0015] Using the above technical solutions, the threaded rod and nut have the characteristics of high strength, low density and excellent corrosion resistance.

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. This utility model involves first lifting the upper frame to the top of the main shaft and placing it in contact with the shaft seat. Then, the upper frame is moved to align the through hole with the threaded hole in the shaft seat. After alignment, the fixing bolt is taken out, passed through the upper frame, and screwed into the threaded hole. Subsequently, the lower frame is fixed to the bottom of the main shaft and attached to the upper frame in the same way. This facilitates the replacement of the outer frame, eliminates the burden of disassembling the lower components, improves work efficiency, and has high practicality.

[0018] 2. This utility model, by fixing the lower frame and then loosening the nut with a tool, releases the fixing of the connecting plate and the base plate. The base plate will fall down in the movable state. After the base plate falls down to fit against the table surface, it can be fixed with screws through the mounting holes. Finally, the nut can be tightened again with a tool. It has an adjustable support function, is simple and convenient to operate, improves its stability, and has good flexibility. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural view of the present invention;

[0020] Figure 2 This is a front sectional view of the structure of this utility model;

[0021] Figure 3 This is a partial sectional view of the left side of the structure of this utility model.

[0022] Reference numerals in the attached drawings: 1. Main shaft; 2. Shaft seat; 3. Bearing; 4. Upper frame; 5. Lower frame; 6. Fixing bolt; 7. Base plate; 8. Connecting plate; 9. Threaded rod; 10. Sliding groove; 11. Nut; 12. Limiting plate; 13. Spring washer; 14. Mounting hole. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Example 1:

[0025] refer to Figure 1 , Figure 2 and Figure 3 A rigid anti-collision mechanism for a machining center spindle includes a spindle rod 1. Two bearing seats 2 are slidably sleeved on the surface of the spindle rod 1. Bearings 3, which are fixedly sleeved with the spindle rod 1, are installed inside the bearing seats 2. An upper frame 4 and a lower frame 5 are respectively provided at the top and bottom of the bearing seats 2. Fixing bolts 6 are provided through both sides of the upper frame 4 and the lower frame 5. Threaded holes for cooperating with the fixing bolts 6 are opened inside the bearing seats 2. The upper frame 4 is first lifted and placed at the top of the spindle rod 1 to contact the bearing seat 2. Then, the upper frame 4 is moved so that the through hole aligns with the threaded hole in the bearing seat 2. After alignment, the fixing bolts 6 are taken out, passed through the upper frame 4, and screwed into the threaded hole. Then, the lower frame 5 is fixed to the bottom of the spindle rod 1 in the same way to fit against the upper frame 4. This mechanism facilitates the replacement of the outer frame, eliminates the burden of dismantling the lower components, improves work efficiency, and has high practicality.

[0026] refer to Figure 2 A limiting plate 12 is bolted to the other side of the bearing seat 2. The limiting plate 12 can limit the bearing 3 inside the bearing seat 2 and prevent the bearing seat 2 from separating from the internal bearing 3.

[0027] refer to Figure 1 , Figure 2 and Figure 3 The surfaces of the upper frame 4 and the lower frame 5 are coated with anti-corrosion paint. The anti-corrosion and moisture-proof effects of the upper frame 4 and the lower frame 5 can be improved by the application of anti-corrosion paint.

[0028] Brief description of the usage process: First, lift the upper frame 4 and place it at the top of the main shaft 1 to contact the shaft seat 2. Then, move the upper frame 4 to align the through hole with the threaded hole in the shaft seat 2. After alignment, take out the fixing bolt 6, pass it through the upper frame 4, and screw it into the threaded hole. Then, fix the lower frame 5 to the bottom of the main shaft 1 in the same way and fit it against the upper frame 4.

[0029] Example 2:

[0030] refer to Figure 1 , Figure 2 and Figure 3 A rigid anti-collision mechanism for a machining center spindle is disclosed. A base plate 7 is provided at the bottom of a lower frame 5. Connecting plates 8 are symmetrically installed on the top, front, and rear ends of the base plate 7. Threaded rods 9 are welded to the front and back of the lower frame 5. A sliding groove 10 is provided inside the connecting plate 8. Nuts 11 are threaded onto the surface of the threaded rods 9. By fixing the lower frame 5 and loosening the nuts 11 with a tool, the fixing of the connecting plates 8 and the base plate 7 is released, allowing the base plate 7 to fall in the movable state. When the base plate 7 falls to fit against the table surface, it can be fixed with screws passing through the mounting holes 14. Finally, the nuts 11 are tightened again with a tool. This mechanism provides adjustable support, is simple and convenient to operate, improves stability, and offers good flexibility.

[0031] refer to Figure 3 The surface of the threaded rod 9 is slidably fitted with a spring washer 13 that fits against the connecting plate 8. The setting of the spring washer 13 can improve the fixing effect of the nut 11 after tightening, and play a role in shockproofing and preventing loosening.

[0032] refer to Figure 1 The base plate 7 has a mounting hole 14 on its top, which allows personnel to easily fix the base plate 7 with screws.

[0033] refer to Figure 1 and Figure 3 Both the threaded rod 9 and the nut 11 are made of stainless steel, and they have the characteristics of high strength, low density and excellent corrosion resistance.

[0034] Brief description of the usage process: After fixing the lower frame 5, use a tool to loosen the nut 11. After the nut 11 is loosened, the fixing of the connecting plate 8 and the base plate 7 will be released. The base plate 7 will fall down in the movable state. After the base plate 7 falls down to fit against the table surface, it can be fixed by passing screws through the mounting holes 14. Finally, use a tool to tighten the nut 11 again.

[0035] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A rigid anti-collision mechanism for a machining center spindle, comprising a spindle rod (1), characterized in that: The main shaft (1) has two slidably fitted bearings (2) on its surface. The bearings (3) are installed inside the bearings (2) and are fixedly fitted to the main shaft (1). The top and bottom of the bearings (2) are respectively provided with an upper frame (4) and a lower frame (5). Fixing bolts (6) are provided through both sides of the upper frame (4) and the lower frame (5). The bearings (2) have threaded holes that cooperate with the fixing bolts (6) inside. The bottom of the lower frame (5) is provided with a base plate (7). The top, front and rear ends of the base plate (7) are symmetrically installed with connecting plates (8). The front and back of the lower frame (5) are welded with threaded rods (9). The connecting plate (8) has a sliding groove (10) inside. The surface of the threaded rod (9) is threaded with nuts (11).

2. The rigid anti-collision mechanism for a machining center spindle according to claim 1, characterized in that, A limiting plate (12) is bolted to the other side of the bearing seat (2).

3. The rigid anti-collision mechanism for a machining center spindle according to claim 1, characterized in that, The surfaces of the upper frame (4) and the lower frame (5) are coated with anti-corrosion paint.

4. The rigid anti-collision mechanism for a machining center spindle according to claim 1, characterized in that, The surface of the threaded rod (9) is slidably fitted with a spring washer (13) that fits against the connecting plate (8).

5. A rigid anti-collision mechanism for a machining center spindle according to claim 1, characterized in that, The top of the base plate (7) is provided with mounting holes (14).

6. The rigid anti-collision mechanism for a machining center spindle according to claim 1, characterized in that, Both the threaded rod (9) and the nut (11) are made of stainless steel.

Images