Tool for preventing deformation of bearing bush after finish machining

Abstract

The utility model discloses a tool for preventing bearing bush deformation after finish machining, and relates to the technical field of bearing bush machining, the tool comprises a base and a cylindrical handle, the upper surface of the base is provided with four vertically communicated mounting holes in an annular array, the middle part of the upper surface of the base is fixedly connected with a supporting rod, and the supporting rod is fixedly connected with the cylindrical handle. A connecting assembly is arranged on the upper surface of the supporting rod, and a positioning disc is fixedly connected to the upper portion of the outer surface of the connecting assembly. The cylindrical handle is arranged to enable the bevel gear disc to rotate so as to drive the bevel gear to move, the fixing bolt and the rhombic sleeve are arranged to facilitate movement, the arc-shaped block and the arc-shaped rubber block expand outwards, and therefore the inner wall of the bearing bush is supported; the precision requirement during machining is ensured, the phenomenon that the inner wall of the machined bearing bush deforms is prevented, and therefore the device is convenient to use, easy and convenient to operate and suitable for the inner wall diameters of the bearing bushes of different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing bushing processing, in particular to a tooling for preventing a bearing bushing from being deformed after fine processing. Background Art

[0002] A bearing bushing is a component used to reduce friction between moving parts, usually consisting of a sleeve (usually made of metal or plastic) and a hole through the center. Its main function is to support the load on the shaft, operating by the sliding motion of the shaft between the moving surfaces. A bearing bushing is a single-element component, although it may be composed of several different materials, and is also called a sleeve bearing. Compared with traditional bearings, bearing bushings have no additional roller body movement, ensuring low friction, and its working principle is to ensure linear or rotational movement between two parts. The biggest feature of bearing bushings is that they are simple but effective, and are used in various applications, such as wheels on shafts or pulleys on belts, where there is relative motion between two parts, where the bearing bushing is deformed into an ellipse during processing, the cylindricity becomes poor, and then cannot meet the design requirements.

[0003] According to patent publication number CN205817773U, a tooling for preventing deformation of bearing bushings after fine machining includes: a cylindrical center bracket; multiple support rods with adjustable lengths, extending outward from the center bracket; multiple arc support frames, respectively connected to the ends of the multiple support rods; the support rods are provided with eight, evenly spaced along the circumference of the center bracket, and each support rod extends radially outward along the center bracket to present a "M" shape. Its advantages are: using an adjustable "M"-shaped combination frame to support the bearing bushing from eight directions, effectively preventing its deformation. The following problems exist in the prior art:

[0004] The structure of the above publication number CN205817773U is relatively simple, so that when adjusting the support rods, it is necessary to adjust several support rods to complete the adjustment operation, resulting in the problem that the adjustment is troublesome and inconvenient, and it is inconvenient to use. Utility Model Content

[0005] The utility model provides a tool for preventing a bearing bushing from being deformed after fine machining, so as to solve the problem raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A tool for preventing a bearing bushing from deforming after fine machining, comprising a base and a cylindrical handle, wherein the upper surface of the base is provided with four mounting holes which are connected up and down in an annular array, a support rod is fixedly connected to the middle of the upper surface of the base, a connecting assembly is provided on the upper surface of the support rod, a positioning plate is fixedly connected above the outer surface of the connecting assembly, and the lower surface of the positioning plate is provided with four T-slots in an annular array, the four T-slots are connected to the inside and outside on a side away from the connecting assembly, and a supporting assembly is provided on the lower surface of the positioning plate.

[0008] The connecting assembly includes a cylindrical connecting frame, a cylindrical inner cavity is opened inside the cylindrical connecting frame, a bevel gear plate is movably connected to the middle of the lower surface of the inner wall of the cylindrical inner cavity, four bevel gears are meshed in an annular array above the outer surface of the bevel gear plate, a fixing rod is fixedly connected to the middle of the upper surface of the bevel gear plate, the outer surface of the fixing rod passes through the outside of the cylindrical connecting frame and is movably connected, and the upper part of the outer surface of the fixing rod is fixedly connected to the lower end of the cylindrical handle.

[0009] A further improvement of the technical solution of the utility model is that the support assembly includes a fixing bolt and an arc block, the side of the outer surface of the fixing bolt away from the arc block passes through the internal movable connection of the columnar connecting frame, and the end of the fixing bolt away from the arc block is fixedly connected to the surface of the bevel gear.

[0010] A further improvement of the technical solution of the utility model is that the outer surface of the fixing bolt is threadedly connected with a diamond sleeve, a T-shaped block is fixedly connected to the side of the outer surface of the diamond sleeve away from the arc block, and the outer surface of the arc block is slidably connected to the inside of the T-shaped groove in the positioning plate.

[0011] A further improvement of the technical solution of the utility model is that an arc block is fixedly connected to one end of the diamond sleeve away from the fixing bolt, an arc rubber block is fixedly connected to the outer surface of the arc block, and the arc block and the arc rubber block have the same shape.

[0012] A further improvement of the technical solution of the utility model is that a sleeve is threadedly connected above the outer surface of the support rod, a circular socket is opened on the upper surface of the support rod, and arc blocks 1 are fixedly connected above the left and right sides of the inner wall of the sleeve, and the arc blocks 1 on the left and right sides are mirror-imaged.

[0013] A further improvement of the technical solution of the utility model is that a guide rod is slidably connected inside the circular socket, the upper end of the guide rod is fixedly connected to the middle of the lower surface of the columnar connecting frame, and the outer surface of the guide rod is fixedly connected to a plurality of arc blocks 2 on both the front and rear sides, and the plurality of arc blocks 2 on the front and rear sides are mirror-arranged.

[0014] A further improvement of the technical solution of the utility model is that: a clamping area is formed between a plurality of the arc-shaped blocks 2, the material of the arc-shaped blocks 2 is rubber, and the height of the clamping area is less than the thickness of the arc-shaped block 1.

[0015] A further improvement of the technical solution of the utility model is that: an arc surface is arranged on the rear side of the arc block 2, planes are arranged on the left and right sides of the arc block 2, and the arc block 2 and the arc block 1 have the same shape.

[0016] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0017] 1. The utility model provides a tooling for preventing deformation of a bearing bushing after fine machining, and adopts the mutual cooperation of a connecting assembly, a columnar connecting frame, a bevel gear plate, a bevel gear, a fixing rod, a fixing bolt, a diamond sleeve, an arc block, an arc rubber block, and a T-block. The bevel gear plate is rotated by setting a columnar handle, thereby driving the bevel gear to move. The setting of the fixing bolt and the diamond sleeve facilitates the movement, so that the arc block and the arc rubber block expand outward, thereby supporting the inner wall of the bearing bushing, ensuring the precision requirement during machining, and preventing the inner wall of the bearing bushing from being deformed after machining, so that it is easy to use and simple to operate, and can adapt to the inner wall diameters of bearing bushings of different sizes.

[0018] 2. The utility model provides a tooling for preventing deformation of a bearing bushing after fine machining, and adopts the mutual cooperation of a support rod, a sleeve, a circular socket, an arc block 1, a guide rod, an arc block 2, an arc surface, and a plane. The setting of the guide rod and the circular socket facilitates the phenomenon of adjusting the height, and at the same time facilitates the assembly and disassembly of the support rod and the columnar connecting frame, making it easy to process the bearing bushing. The setting of the arc block 1 and the arc block 2 facilitates the positioning of the adjusted position. The setting of this structure makes it easy to adjust the height and facilitate processing while facilitating installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of a top-view cross-sectional structure of a columnar connecting frame in a connecting assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the exploded structure of the support assembly of the utility model;

[0022] Figure 4 This is a schematic diagram of the exploded structure of the support rod and the guide rod of the utility model;

[0023] Figure 5 It is a schematic diagram of the enlarged structure of the arc block 2 of the utility model.

[0024] In the figure: 1. base; 2. support rod; 21. sleeve; 22. round socket; 23. arc block 1; 24. guide rod; 25. arc block 2; 251. arc surface; 252. plane; 3. connecting assembly; 31. cylindrical connecting frame; 32. bevel gear plate; 33. bevel gear; 34. fixing rod; 4. supporting assembly; 41. fixing bolt; 42. diamond sleeve; 43. arc block; 44. arc rubber block; 45. T-shaped block; 5. cylindrical handle; 6. positioning plate. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1 As shown, the utility model provides a tooling for preventing deformation of a bearing bushing after fine machining, comprising a base 1 and a cylindrical handle 5, wherein the upper surface of the base 1 is provided with four mounting holes in an annular array and communicate with each other from top to bottom, a support rod 2 is fixedly connected to the middle of the upper surface of the base 1, a connecting assembly 3 is provided on the upper surface of the support rod 2, a positioning plate 6 is fixedly connected to the upper surface of the outer surface of the connecting assembly 3, and four T-shaped slots are provided in an annular array on the lower surface of the positioning plate 6, and the four T-shaped slots are communicated with each other from the inside to the outside on a side away from the connecting assembly 3, and a supporting assembly 4 is provided on the lower surface of the positioning plate 6;

[0027] When in use, the base 1 and the mounting hole are provided to facilitate installation and fixation of the operating table, and the cylindrical handle 5 is provided to facilitate movement of the internal structure of the connecting component 3, so that the supporting component 4 supports the inner wall of the bearing bushing, which is convenient for processing.

[0028] like Figure 2 - Figure 3As shown, the connection assembly 3 includes a cylindrical connection frame 31, a cylindrical inner cavity is opened inside the cylindrical connection frame 31, a bevel gear plate 32 is movably connected to the middle of the lower surface of the inner wall of the cylindrical inner cavity, four bevel gears 33 are meshed in a ring array above the outer surface of the bevel gear plate 32, a fixing rod 34 is fixedly connected to the middle of the upper surface of the bevel gear plate 32, the outer surface of the fixing rod 34 passes through the outside of the cylindrical connection frame 31 and is movably connected, and the upper part of the outer surface of the fixing rod 34 is fixedly connected to the lower end of the cylindrical handle 5, and the support assembly 4 includes a fixing bolt 41 and an arc block 43, and the outer surface of the fixing bolt 41 is away from the arc block. One side of the block 43 penetrates the internal movable connection of the columnar connecting frame 31, the end of the fixing bolt 41 away from the arc block 43 is fixedly connected to the surface of the bevel gear 33, the outer surface of the fixing bolt 41 is threadedly connected with a diamond sleeve 42, the upper side of the outer surface of the diamond sleeve 42 away from the arc block 43 is fixedly connected with a T-shaped block 45, the outer surface of the arc block 43 is slidably connected with the inside of the T-shaped groove in the positioning plate 6, the end of the diamond sleeve 42 away from the fixing bolt 41 is fixedly connected with the arc block 43, the outer surface of the arc block 43 is fixedly connected with an arc rubber block 44, and the arc blocks 43 and the arc rubber blocks 44 have the same shape;

[0029] When in use, the bearing sleeve is sleeved on the outside of the support assembly 4, and then the cylindrical handle 5 is turned to drive the fixing rod 34 to rotate the bevel gear plate 32. The rotation of the bevel gear plate 32 drives the bevel gear 33 to rotate, and drives the fixing bolt 41 to rotate inside the diamond sleeve 42, thereby driving the arc block 43 and the arc rubber block 44 to move. At the same time, the outer surface of the T-shaped block 45 slides inside the T-shaped groove in the positioning plate 6, so that the arc rubber block 44 fits tightly with the inner wall of the bearing sleeve, thereby facilitating the support of the inner wall of the bearing sleeve for processing, preventing the inner wall diameter of the bearing sleeve from being easily deformed during processing, and at the same time, the setting of the arc rubber block 44 facilitates the protective and buffering effect on the inner wall of the bearing sleeve.

[0030] like Figure 4 - Figure 5As shown, a sleeve 21 is threadedly connected above the outer surface of the support rod 2, a circular socket 22 is opened on the upper surface of the support rod 2, and arc blocks 23 are fixedly connected to the upper left and right sides of the inner wall of the sleeve 21, and the left and right arc blocks 23 are mirror-arranged, and a guide rod 24 is slidably connected inside the circular socket 22, and the upper end of the guide rod 24 is fixedly connected to the middle part of the lower surface of the columnar connecting frame 31, and a plurality of arc blocks 25 are fixedly connected to the front and rear sides of the outer surface of the guide rod 24, and a plurality of arc blocks 25 on the front and rear sides are mirror-arranged, and a clamping area is formed between the plurality of arc blocks 25, and the material of the arc block 25 is rubber, and the height of the clamping area is less than the thickness of the arc block 1 23, and an arc surface 251 is arranged on the rear side of the arc block 25, and planes 252 are arranged on the left and right sides of the arc block 25, and the arc blocks 25 and the arc block 1 23 have the same shape;

[0031] When in use, the arc block 25 is driven by rotating the guide rod 24 and moving the guide rod 24 upward, so that the height can be adjusted. At the same time, the planes 252 on the left and right sides of the arc block 25 pass through the planes of the two arc blocks 1 23 and move upward. When it moves to the appropriate position, the arc block 25 is driven to move by rotating the guide rod 24, so that the clamping areas between the front and rear arc blocks 25 contact and clamp the arc blocks 1 23 on the left and right sides, so that the arc block 25 is deformed and contracted, thereby facilitating the positioning of the position after the height adjustment.

[0032] The following is a detailed description of the working principle of the tooling for preventing the bearing bushing from deforming after fine machining.

[0033] When in use, the bearing bushing is sleeved on the outside of the support assembly 4, and the cylindrical handle 5 is rotated to drive the fixing rod 34, the bevel gear plate 32, and the bevel gear 33 to rotate, thereby driving the fixing bolt 41 to rotate inside the diamond sleeve 42, thereby driving the arc block 43 and the arc rubber block 44 to move, and at the same time, the outer surface of the T-shaped block 45 slides inside the T-shaped groove in the positioning plate 6, so that the arc rubber block 44 is closely fitted with the inner wall of the bearing bushing, so as to facilitate the support of the inner wall of the bearing bushing for processing and prevent processing. The inner wall diameter of the bearing bushing is deformed when in use. When in use, the arc block 25 is driven by rotating the guide rod 24 and the guide rod 24 is moved upward, so that the height can be adjusted. At this time, the planes 252 on the left and right sides of the arc block 25 pass through the planes of the two arc blocks 1 23. When it moves to the appropriate position, the arc block 25 is driven to move by rotating the guide rod 24, so that the clamping areas between the front and rear arc blocks 25 contact and clamp the arc blocks 1 23 on the left and right sides, thereby facilitating the positioning of the adjusted position.

[0034] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A tool for preventing deformation of a bearing bushing after fine machining, comprising a base (1) and a cylindrical handle (5), characterized in that: The upper surface of the base (1) is provided with four mounting holes in an annular array and connected to each other from top to bottom; a support rod (2) is fixedly connected to the middle of the upper surface of the base (1); a connecting assembly (3) is provided on the upper surface of the support rod (2); a positioning plate (6) is fixedly connected above the outer surface of the connecting assembly (3); four T-shaped grooves are provided in an annular array on the lower surface of the positioning plate (6); the four T-shaped grooves are connected to each other from the inside to the outside on a side away from the connecting assembly (3); and a supporting assembly (4) is provided on the lower surface of the positioning plate (6); The connecting assembly (3) comprises a cylindrical connecting frame (31), a cylindrical inner cavity is provided inside the cylindrical connecting frame (31), a bevel gear plate (32) is movably connected to the middle of the lower surface of the inner wall of the cylindrical inner cavity, four bevel gears (33) are meshed in a ring array above the outer surface of the bevel gear plate (32), a fixing rod (34) is fixedly connected to the middle of the upper surface of the bevel gear plate (32), the outer surface of the fixing rod (34) passes through the outside of the cylindrical connecting frame (31) and is movably connected, and the upper part of the outer surface of the fixing rod (34) is fixedly connected to the lower end of the cylindrical handle (5).

2. A tool for preventing deformation of a bearing bushing after fine machining according to claim 1, characterized in that: The support assembly (4) comprises a fixing bolt (41) and an arc block (43); a side of the outer surface of the fixing bolt (41) away from the arc block (43) penetrates the interior of the columnar connecting frame (31) for active connection; and an end of the fixing bolt (41) away from the arc block (43) is fixedly connected to the surface of the bevel gear (33).

3. A tool for preventing deformation of a bearing bushing after fine machining according to claim 2, characterized in that: The outer surface of the fixing bolt (41) is threadedly connected to a rhombus sleeve (42), a T-shaped block (45) is fixedly connected to the outer surface of the rhombus sleeve (42) on a side away from the arc block (43), and the outer surface of the arc block (43) is slidably connected to the inside of the T-shaped groove in the positioning plate (6).

4. A tool for preventing deformation of a bearing bushing after fine machining according to claim 3, characterized in that: An end of the rhombus sleeve (42) away from the fixing bolt (41) is fixedly connected to an arc block (43), and an outer surface of the arc block (43) is fixedly connected to an arc rubber block (44), and the arc block (43) and the arc rubber block (44) have the same shape.

5. The tooling for preventing deformation of a bearing bushing after fine machining according to claim 1 is characterized in that: A sleeve (21) is threadedly connected to the upper surface of the outer surface of the support rod (2), a circular socket (22) is provided on the upper surface of the support rod (2), and arc blocks (23) are fixedly connected to the upper left and right sides of the inner wall of the sleeve (21), and the arc blocks (23) on the left and right sides are arranged in a mirror image.

6. A tool for preventing deformation of a bearing bushing after fine machining according to claim 5, characterized in that: A guide rod (24) is slidably connected inside the circular socket (22), the upper end of the guide rod (24) is fixedly connected to the middle of the lower surface of the columnar connecting frame (31), and a plurality of arc-shaped blocks (25) are fixedly connected to the front and rear sides of the outer surface of the guide rod (24), and the front and rear arc-shaped blocks (25) are arranged in a mirror image.

7. A tool for preventing deformation of a bearing bushing after fine machining according to claim 6, characterized in that: A clamping area is formed between a plurality of the arc-shaped blocks 2 (25), the material of the arc-shaped block 2 (25) is rubber, and the height of the clamping area is less than the thickness of the arc-shaped block 1 (23).

8. The tooling for preventing deformation of a bearing bushing after fine machining according to claim 6 is characterized in that: The rear side of the arc block 2 (25) is provided with an arc surface (251), and the left and right sides of the arc block 2 (25) are both provided with plane surfaces (252), and the arc block 2 (25) and the arc block 1 (23) have the same shape.

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