Press-fitting operation table for assembling main shaft

Abstract

The utility model discloses a press-fitting operation table for assembling a main shaft. The press-fitting operation table comprises a conveying support, a press machine support, a guide rail, a movable supporting plate, a press machine support and an oil cylinder. The guide rails are installed on the conveying support and the press machine support, the conveying support and the press machine support between the guide rails are provided with operation channels, and the movable supporting plate is connected to the guide rails in a sliding mode through sliding blocks. The press support avoids the guide rail and the movable supporting plate and then is installed on the press support, the oil cylinder is inversely installed on an oil cylinder supporting plate at the top of the press support, and after the movable supporting plate slides to the press support in place through the sliding block, a piston of the oil cylinder faces downwards and is right opposite to the movable supporting plate. The press-fitting operation table can provide enough press-fitting pressure, can avoid inclined press-fitting, and meanwhile has the beneficial effects of saving labor and being convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of spindle assembly, in particular to a press-fitting operating table used for spindle assembly. Background Art

[0002] The spindle in the present application mainly refers to the spindle used for machining on CNC machine tools. The spindle is generally equipped with bearings for rotatably supporting the spindle and a cylinder for loosening and pulling the tool. For the assembly of the bearings and the cylinder, press fitting is a relatively common assembly method.

[0003] When installing bearings, we currently generally use heat installation, but this installation method is prone to cause the bearings to tilt slightly and not be installed to the bottom; when press-fitting the cylinder piston, the traditional method is manual installation, which consumes human resources and is also prone to not being installed to the bottom.

[0004] Therefore, it is necessary to propose a press-fitting operating table that can stably provide pressure. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a press-fitting operating table with a new structure for main shaft assembly.

[0006] The utility model proposes a press-fitting operating table for spindle assembly, and its specific technical scheme is to provide a press-fitting operating table for spindle assembly, including a conveying bracket, a press support, a guide rail, a movable pallet, a press support, and an oil cylinder; the guide rail is installed on the conveying bracket and the press support, and an operating channel is opened on the conveying bracket and the press support between the guide rails, and the movable pallet is slidably connected to the guide rail by a slider; the press support avoids the guide rail and the movable pallet and is installed on the press support, the oil cylinder is inverted on the cylinder support plate on the top of the press support, and after the movable pallet slides into place on the press support with the help of the slider, the piston of the oil cylinder faces downward to face the movable pallet.

[0007] Preferably, the piston of the oil cylinder is provided with a threaded connection end, and a press-fit rod is threadedly connected to the threaded connection end.

[0008] Preferably, the press-fitting rod member includes one or more press-fitting connecting rods, the first press-fitting connecting rod is threadedly connected to the piston of the oil cylinder, and the press-fitting connecting rods are connected up and down by threads.

[0009] Preferably, the movable support plate is provided with a central large through hole and mounting holes located around the central large through hole, and the central large through hole is connected to the running channel.

[0010] Preferably, the running channel includes a running channel located on the conveying bracket and a running channel located on the press support. The running channel on the conveying bracket is formed by the top connecting beam and the vertical beams located on both sides of the top connecting beam after the top connecting beam of the conveying bracket moves downward. The running channel on the press support is formed by the side opening groove on the top seat plate of the press support, and the opening of the side opening groove faces the running channel on the conveying bracket.

[0011] Preferably, a first limiting rod and a second limiting rod for limiting the movement of the pallet are respectively provided at both ends of the guide rail, the first limiting rod passes through the guide rail and is fixed on the conveying bracket, and the second limiting rod passes through the guide rail and is fixed on the press support.

[0012] Preferably, a limiting support block for limiting the position of the movable support plate is also provided on the top seat plate of the press support, and a handle is threadedly connected to the limiting support block, and the threaded connection end of the handle also extends out of the limiting support block and can be threadedly connected to the threaded hole at the end of the movable support plate.

[0013] Preferably, the bottom of the press support is provided with a leveling foot, and the leveling foot includes a foot support and a base plate, and the foot support and the base plate are connected to the bottom of the press support through an adjusting bolt and an adjusting nut.

[0014] Beneficial effects:

[0015] The utility model can greatly simplify the pressing operation, so that the pressing operation can be performed by one person, and the safety of the operation is also improved;

[0016] The utility model has low requirements on the precision of components, low cost and high cost performance;

[0017] The press-fitting operation of the utility model is basically completed by controlling the extension and contraction of the oil cylinder piston, and the operation is simple, and people without use experience can also quickly get started with it;

[0018] The utility model can provide stable pressure by applying pressure through the oil cylinder piston during press-fitting, and can also provide positive pressure without tilting during the press-fitting process, thereby avoiding the phenomenon of tilting and failure to press to the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the press support of the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the accompanying drawings to clearly describe the technical solutions in the specific embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the following embodiments are within the scope of protection of the utility model.

[0023] In order to solve the assembly problem of bearings and cylinder pistons on the spindle of a CNC machine tool in the prior art, the utility model provides a press-fitting operating table that can provide stable pressure. Through the arrangement of guide rails and cylinders, the existence of the press-fitting operating table can effectively avoid the situation of tilting and not being able to be installed to the bottom during installation. It can also save manpower when press-fitting the cylinder piston, so that the installation steps can be completed by one person.

[0024] The specific structure of the press-fitting operation table for spindle assembly of the utility model is described in detail below with a specific embodiment. Figure 1-Figure 3 In this embodiment, a new structure of a press-fitting operating table based on spindle assembly is provided, which includes a conveying bracket 14, a press support 10, a guide rail 15, a movable pallet 7, a press support and a cylinder 1.

[0025] Among them, the conveying bracket 14 is a frame structure, and the main body is composed of square tubes and reinforcing ribs connected by bolts and nuts, which has the advantages of high strength and light weight. The press support 10 is also basically a frame structure. The difference is that because the press support 10 is a load-bearing component during press assembly, the main body is composed of solid square columns and solid plates spliced ​​together, which has the advantages of strong bearing capacity and stable structure. In this embodiment, the conveying bracket 14 and the press support 10 are arranged close to each other and connected to form an integral structure through a guide rail 15.

[0026] Specifically, the rear half of the guide rail 15 is fixed to the top of the conveying bracket 14 by bolts and nuts, and the rear half of the guide rail 15 is connected to the top of the press support 10 by screws. It should be noted that two guide rails 15 are provided in this embodiment, and the two guide rails 15 are respectively arranged parallel and symmetrically on both sides of the length direction of the top of the above-mentioned integral structure. The movable pallet 7 is connected to four sliders 11 by screws, and the sliders 11 are placed on the track of the guide rail 15 and can move smoothly, so that the movable pallet 7 can move back and forth between the conveying bracket 14 and the press support 10. The two ends of the guide rail 15 are respectively provided with a first limiting rod 16 and a second limiting rod 24 for limiting the movable pallet 7. The first limiting rod 16 passes through the guide rail 15 and is fixed to the conveying bracket 14, and the second limiting rod 24 passes through the guide rail 15 and is fixed to the press support 10. In this embodiment, the first limiting rod 16 and the second limiting rod 24 are both made of limiting bolts, wherein two limiting bolts pass through the two guide rails 15 and are fixed to the conveying bracket 14 by nuts, and the other two limiting bolts pass through the two guide rails 15 and are fixed to the press support 10 by nuts. Thus, the protruding end of the limiting bolt can effectively prevent the moving support plate 7 and the slider 11 from exceeding the travel of the guide rail 15 during movement and causing accidental falling.

[0027] In this embodiment, since the CNC machine tool spindle needs to be mounted on the movable pallet 7 for press-fitting the bearing, in order to avoid the interference between the movable pallet 7 on which the CNC machine tool spindle is mounted and the conveying bracket 14 and the press support 10 during the sliding process, a running channel 17 is opened on the conveying bracket 14 and the press support 10 between the guide rails 15. Specifically, the running channel 17 includes a running channel located on the conveying bracket 14 and a running channel located on the press support 10. The running channel on the conveying bracket 14 is surrounded by the top connecting beam 20 and the vertical beams 21 located on both sides of the top connecting beam 20 after the top connecting beam 20 of the conveying bracket 14 moves downward, and the running channel on the press support 10 is opened by the side opening groove 23 on the top seat plate 22 of the press support 10, and the opening of the side opening groove 23 faces the running channel on the conveying bracket 14. In this way, during the sliding process of the mobile pallet 7 on which the CNC machine tool spindle is installed, the CNC machine tool spindle will not touch the conveying bracket 14 and the press support 10, and the mobile pallet 7 can move freely in the operating channel with the CNC machine tool spindle.

[0028] In order to install and place the CNC machine tool spindle, the movable support plate 7 is provided with a central large through hole 18 and mounting holes 19 located around the central large through hole 18, and the central large through hole 18 is connected to the running channel 17. The central large through hole 18 allows the CNC machine tool spindle to extend into the running channel for easy installation and placement of the CNC machine tool spindle, and the mounting holes 19 can be used to firmly connect the CNC machine tool spindle to the movable support plate 7 with bolts, thereby finally completing the fixed installation and placement of the CNC machine tool spindle.

[0029] In this embodiment, a limiting support block 8 for limiting the end of the movable support plate 7 is also provided on the top seat plate 22 of the press support 10, and a handle 9 is threadedly connected to the limiting support block 8, and the threaded connection end of the handle 9 also extends out of the limiting support block 8 and can be threadedly connected to the threaded hole at the end of the movable support plate 7. Specifically, the limiting support block 8 is fixed to the top seat plate 22 by screws, one end of the handle 9 has a thread and passes through the threaded hole on the limiting support block 8, and the movable support plate 7 also has a threaded hole matching the handle 9. When the movable support plate 7 moves to the working position, the movable support plate 7 is fixed by rotating the wrench 9, which can prevent the movable support plate 7 from sliding due to pressure during operation, and can improve the safety in the working state.

[0030] In order to keep the whole machine in a horizontal state, a leveling foot is provided at the bottom of the press support 10. The leveling foot includes a foot support 12 and a base plate 13. The foot support 12 and the base plate 13 are connected to the bottom of the press support 10 through adjusting bolts and adjusting nuts, so that the overall level can be adjusted by setting the leveling foot.

[0031] As a press support, it is installed on the press support 10 after avoiding the guide rail 15 and the movable pallet 7, and the oil cylinder 1 is inverted on the oil cylinder support plate 2 on the top of the press support, and after the movable pallet 7 slides into place on the press support 10 with the help of the slider 11, the piston of the oil cylinder 1 faces downward directly to the movable pallet 7. During the actual press fitting, the piston of the oil cylinder 1 faces downward directly to the bearing on the spindle of the CNC machine tool, thereby obtaining a non-inclined positive pressure. Specifically, the press support as a whole is also a frame structure, with four columns 6 and a cylinder support plate 2 connected to the top of the four columns 6. The four columns 6 are respectively arranged at the four corners of the top of the press support 10, so as to avoid the guide rail 15 and the movable pallet 7. It should be noted that, considering that the spindle of the CNC machine tool has a certain axial height, there is a certain height distance between the oil cylinder support plate 2 and the top seat plate 22.

[0032] Considering that in addition to being suitable for the press-fitting of bearings and cylinder pistons on CNC machine tool spindles, it is also suitable for the press-fitting of some other workpieces as much as possible. After the cylinder 1 is inverted on the cylinder support plate 2, the piston of the cylinder 1 is provided with a threaded connection end, and a press-fit rod is threadedly connected to the threaded connection end. The press-fit rod includes one or more press-fit connecting rods 4, the first press-fit connecting rod 5 is threadedly connected to the piston of the cylinder 1, and the press-fit connecting rods 4 are connected up and down by threads. Therefore, according to the height of the workpiece, by connecting enough press-fit connecting rods at the lower end of the piston, the stroke of the cylinder can meet the working requirements. Different tooling can be designed on the movable support plate 7 to adapt to workpieces of different shapes, so that the working objects of the press-fitting operating table are more diversified.

[0033] When the press-fitting operating table is working, first move the movable pallet 7 along the guide rail 15 to the top of the conveying bracket 14, and use the overhead crane to lift the workpiece onto the movable pallet 7. According to the condition of the workpiece, use various tooling to fix the workpiece on the movable pallet 7, and pay attention to placing the area that needs to be pressed in the center of the movable pallet 7 as much as possible. Move the movable pallet 7 along the guide rail 15 to the top of the press support 10, turn the wrench 9 to fix the movable pallet 7, and after confirming that the workpiece is stable, match the press-fitting connecting rod 4 according to the workpiece height and the stroke of the cylinder 1. The hydraulic station controls the up and down movement of the piston of the cylinder 1 to complete the press-fitting operation. The utility model is suitable for working conditions such as cold pressing of bearings and pressing of cylinder pistons. It should be noted that the above-mentioned workpiece includes a spindle for a CNC machine tool.

[0034] The utility model can avoid the situation of tilted press-fitting by applying pressure through the oil cylinder piston rod, and at the same time, the oil cylinder piston has sufficient pressure to ensure that the press-fitting is in place. The utility model has strong adaptability. Although it is mainly used for press-fitting of bearings and oil cylinder pistons on the spindle of CNC machine tools, it is also applicable to press-fitting of bearings and oil cylinder pistons on other workpieces.

[0035] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A press-fitting operating table for spindle assembly, characterized in that: It comprises a conveying support (14), a press support (10), a guide rail (15), a movable support plate (7), a press support and an oil cylinder (1); The guide rail (15) is mounted on the conveying bracket (14) and the press support (10), and a running channel (17) is provided on the conveying bracket (14) and the press support (10) between the guide rail (15), and the movable support plate (7) is slidably connected to the guide rail (15) via a slider (11); The press support avoids the guide rail (15) and the movable support plate (7) and is then installed on the press support (10); the oil cylinder (1) is invertedly installed on the oil cylinder support plate (2) at the top of the press support; and after the movable support plate (7) is slid into position on the press support (10) with the help of a slider (11), the piston of the oil cylinder (1) faces downward and directly faces the movable support plate (7).

2. The press-fitting operation table for spindle assembly according to claim 1, characterized in that: The piston of the oil cylinder (1) is provided with a threaded connection end, and a press-fit rod is threadedly connected to the threaded connection end.

3. The press-fitting operation table for spindle assembly according to claim 2, characterized in that: The press-fit rod member comprises one or more press-fit connecting rods (4), the first press-fit connecting rod (5) is threadedly connected to the piston of the oil cylinder (1), and the press-fit connecting rods (4) are connected up and down by threads.

4. The press-fitting operation table for spindle assembly according to claim 1, characterized in that: The movable support plate (7) is provided with a central large through hole (18) and mounting holes (19) located around the central large through hole (18), and the central large through hole (18) is connected to the running channel (17).

5. The press-fitting operation table for spindle assembly according to claim 4, characterized in that: The running channel (17) comprises a running channel located on the conveying support (14) and a running channel located on the press support (10); the running channel on the conveying support (14) is formed by the top connecting crossbeam (20) and the vertical beams (21) located on both sides of the top connecting crossbeam (20) after the top connecting crossbeam (20) of the conveying support (14) moves downward; the running channel on the press support (10) is formed by the side opening groove (23) on the top seat plate (22) of the press support (10); the opening of the side opening groove (23) faces the running channel on the conveying support (14).

6. The press-fitting operation table for spindle assembly according to claim 5, characterized in that: A first limiting rod (16) and a second limiting rod (24) for limiting the movement of the support plate (7) are respectively arranged at both ends of the guide rail (15); the first limiting rod (16) passes through the guide rail (15) and is fixed to the conveying bracket (14); the second limiting rod (24) passes through the guide rail (15) and is fixed to the press support (10).

7. The press-fitting operation table for spindle assembly according to claim 6, characterized in that: A limit support block (8) for limiting the position of the movable support plate (7) is also provided on the top seat plate (22) of the press support (10); a handle (9) is threadedly connected to the limit support block (8); and a threaded connection end of the handle (9) extends out of the limit support block (8) and can be threadedly connected to a threaded hole (25) at the end of the movable support plate (7).

8. The press-fitting operation table for spindle assembly according to claim 1, characterized in that: The bottom of the press support (10) is provided with a leveling foot, and the leveling foot comprises a foot support (12) and a base plate (13), and the foot support (12) and the base plate (13) are connected to the bottom of the press support (10) through an adjusting bolt and an adjusting nut.

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