Crossed cylindrical roller bearing precision positioning device

Abstract

The utility model relates to the field of rolling bearing, concretely relates to a cross cylindrical roller bearing precision positioning equipment, the utility model sets up positioning platform, locating post, adjusting sliding slot, adjusting sliding block, adjusting column, connecting pillar, movable rod, support block and compression assembly, the bearing outer ring is placed in the positioning platform top surface when using, the bearing outer ring is fixed through the common action of adjusting column and locating post, bearing inner race, bearing roller and spacer block are installed in sequence in the bearing outer ring, the compression assembly is pressed through the pressing and just installs bearing roller and spacer block, bearing roller and bearing inner race are positioned and fixed, make bearing roller position fixed in bearing outer race and bearing inner race, reduce the deflection of bearing roller when installing, improve the precision of bearing assembly, thereby reduce friction and promote the motion stability, can prevent bearing roller from happening in the bearing inside inclination, ensure bearing roller positioning accurate, thereby improve the overall rotation precision of bearing.

Description

Technical Field

[0001] This utility model relates to the field of rolling bearings, specifically to a precision positioning device for crossed cylindrical roller bearings. Background Technology

[0002] Crossed cylindrical roller bearings, with their unique cross-arrangement structure, can simultaneously withstand radial loads, bidirectional axial loads, and overturning moments. Therefore, they are widely used in equipment manufacturing fields with extremely high motion accuracy requirements, such as industrial robot joints and rotary tables of precision machining centers. However, existing crossed cylindrical roller bearings still face numerous challenges in terms of repeatability and positioning accuracy. These challenges mainly stem from the combined effects of several key factors, including: poor contact between the spacer and the roller leading to unstable friction; insufficient overall bearing rigidity making it difficult to effectively resist load deformation; inaccurate control of the roller circumferential clearance causing motion fluctuations; residual microburrs during processing causing roller movement jamming; machining deviations in the raceway angle causing abnormal roller skew; and improper selection of fit dimensions during bearing installation resulting in additional preload or loosening. These factors work together to cause fluctuations in the performance of the rotary table during repeatability and positioning, which directly affects the dimensional accuracy and surface quality of the final machined parts. To address this, a precision positioning device for crossed cylindrical roller bearings is proposed. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the present invention provides a precision positioning device for crossed cylindrical roller bearings.

[0004] To solve the above technical problems, this utility model provides the following technical solution: a precision positioning device for crossed cylindrical roller bearings, including a positioning platform, a positioning column at the top of the positioning platform, an adjusting groove on the side of the positioning platform, an adjusting slider installed inside the adjusting groove, an adjusting column at the top of the adjusting slider, a connecting support column at the center of the top of the positioning platform, a movable rod installed at the top of the connecting support column, a support block installed at the end of the movable rod, and a clamping component inserted on the support block; The positioning column and the adjusting slider constitute the fixed assembly of the bearing. The movable rod is installed on the top of the positioning platform through a connecting column. The clamping assembly is connected to the end of the movable rod through a support block.

[0005] Preferably, the positioning post includes a positioning pin, and the positioning pin is fitted with a positioning sleeve. The two sets of positioning pins are vertically fixed to the top surface of the positioning platform.

[0006] Preferably, the adjusting groove is provided in a T-shaped slot, and the bottom of the adjusting groove penetrates the bottom surface of the positioning platform.

[0007] Preferably, the adjusting slider includes a slider body, an adjusting screw is inserted through the middle of the slider body, a screw handle is provided at the end of the adjusting screw, the slider body is installed inside the adjusting groove, the end of the adjusting screw is inserted through the bottom of the adjusting groove, and the adjusting screw and the slider body are connected by threads.

[0008] Preferably, the adjusting column includes a movable pin, the movable pin is fitted with a movable sleeve, and the movable pin is vertically fixed to the top surface of the slider body.

[0009] Preferably, the connecting support includes a support body, a connecting hole is provided at the center of the support body, the support body is vertically fixed to the top surface of the positioning platform, and the connecting hole is prism-shaped.

[0010] Preferably, the movable rod includes a connecting base, a connecting pedestal is provided on the top of the connecting base, a connecting shaft 73 is inserted through the top of the connecting pedestal, and a connecting rod is inserted through the middle of the connecting shaft.

[0011] Preferably, the connecting base includes a connecting shaft, and a connecting prism is provided at the bottom of the connecting shaft, the connecting prism being inserted into a connecting hole.

[0012] Preferably, the support block includes a connecting block, a pressure block is provided at the bottom of the connecting block, a connecting pin is provided on the side of the connecting block, the connecting block is located at the end of the connecting rod, and the connecting pin is inserted and connected between the side of the connecting block and the end of the connecting rod.

[0013] Preferably, the clamping assembly includes a button, a pressure post is provided at the bottom of the button, a positioning pressure plate is provided at the bottom of the pressure post, and the pressure post is inserted at the center of the connecting block.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model includes a positioning platform with a positioning column at its top and an adjusting groove on its side. An adjusting slider is installed inside the adjusting groove, and an adjusting column is positioned on top of the adjusting slider. A connecting support column is located at the center of the top of the positioning platform, with a movable rod mounted on top of the connecting support column. A support block is installed at the end of the movable rod, and a clamping component is inserted into the support block. The positioning column and the adjusting slider constitute a fixed assembly for the bearing. The movable rod is mounted on the top of the positioning platform via the connecting support column, and the clamping component is connected to the end of the movable rod via the support block. In use, the outer ring of the bearing is placed on the top surface of the positioning platform, so that the outer ring of the bearing abuts against the side of the positioning column. The adjusting slider is moved so that the top of the adjusting slider... The adjusting column abuts against the outside of the bearing outer ring. The outer ring is fixed by the combined action of the adjusting column and the positioning column. The bearing inner ring, bearing rollers, and spacer block are installed in sequence inside the bearing outer ring. The support block is supported on the top of the bearing inner ring by moving the support block. The pressing component presses the newly installed bearing rollers and spacer block by pressing, positioning and fixing the bearing rollers and bearing inner ring. This fixes the position of the bearing rollers in the bearing outer ring and bearing inner ring, reduces the offset of the bearing rollers during installation, improves the accuracy of bearing assembly, thereby reducing friction and improving the smoothness of movement. It can prevent the bearing rollers from tilting inside the bearing, ensure the accurate positioning of the bearing rollers, and thus improve the overall rotational accuracy of the bearing. 2. This utility model also includes a movable rod comprising a connecting base, a connecting pedestal at the top of the connecting base, a connecting shaft passing through the top of the connecting base, and a connecting rod inserted through the middle of the connecting shaft. The connecting base is fixed to the top of the connecting support column via the connecting base. The connecting base includes a connecting shaft, a connecting prism at the bottom of the connecting shaft, and the connecting prism is inserted into a connecting hole. The connecting shaft is connected to the connecting support column via the connecting prism. The support block includes a connecting block, a pressure block at the bottom of the connecting block, and a connecting pin on the side of the connecting block. The connecting block is located at the end of the connecting rod, and the connecting pin is inserted between the side of the connecting block and the end of the connecting rod. The connecting block is connected to the connecting rod via the connecting pin. The position of the support block can be easily adjusted via the movable rod, and bearings at different positions can be pressed. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention in use. Figure 3 This is a partial structural diagram of the clamping assembly of this utility model; Figure 4 This is a schematic diagram of the top structure of the positioning platform of this utility model; Figure 5 This is a schematic diagram of the bottom structure of the clamping component of this utility model.

[0016] The numbers in the image represent: 1. Positioning platform; 2. Positioning column; 21. Positioning pin; 22. Positioning sleeve; 3. Adjusting slide; 4. Adjusting slider; 41. Slider body; 42. Adjusting screw; 43. Screw handle; 5. Adjusting column; 51. Movable pin; 52. Movable sleeve; 6. Connecting support column; 61. Support column body; 62. Connecting hole; 7. Movable rod; 71. Connecting base; 711. Connecting shaft; 712. Connecting prism; 72. Connecting base; 73. Connecting shaft; 74. Connecting rod; 8. Support block; 81. Connecting block; 82. Pressure block; 83. Connecting pin; 9. Clamping assembly; 91. Button; 92. Pressure column; 93. Positioning pressure plate. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, highlighting the above and other technical features and advantages of the present invention. However, the following embodiments are merely preferred embodiments of the present invention and are not exhaustive.

[0018] Example: like Figure 1 - Figure 5 As shown, this utility model provides a precision positioning device for crossed cylindrical roller bearings, including a positioning platform 1, a positioning column 2 on the top of the positioning platform 1, an adjustment groove 3 on the side of the positioning platform 1, an adjustment slider 4 installed inside the adjustment groove 3, an adjustment column 5 on the top of the adjustment slider 4, a connecting column 6 at the center of the top of the positioning platform 1, a movable rod 7 installed on the top of the connecting column 6, a support block 8 installed at the end of the movable rod 7, and a clamping component 9 inserted on the support block 8; The positioning pin 2 and the adjusting slider 4 constitute the bearing fixing assembly. The movable rod 7 is installed on the top of the positioning platform 1 via the connecting support 6. The clamping assembly 9 is connected to the end of the movable rod 7 via the support block 8. In use, the bearing outer ring 13 is placed on the top surface of the positioning platform 1, so that the bearing outer ring 13 abuts against the side of the positioning pin 2. The adjusting slider 4 is moved so that the adjusting pin 5 on the top of the adjusting slider 4 abuts against the outside of the bearing outer ring 13. The bearing outer ring 13 is fixed by the combined action of the adjusting pin 5 and the positioning pin 2. Inside the bearing outer ring 13, the bearing inner ring 11, the bearing roller 10, and the spacer block 1 are installed in sequence. 2. By moving the support block 8, the support block 8 is supported on the top of the bearing inner ring 11. By pressing, the clamping component 9 presses the newly installed bearing roller 10 and the isolation block 12, positioning and fixing the bearing roller 10 and the bearing inner ring 11. This fixes the position of the bearing roller 10 in the bearing outer ring 13 and the bearing inner ring 11, reducing the offset of the bearing roller 10 during installation, improving the accuracy of bearing assembly, thereby reducing friction and improving the smoothness of movement. It can prevent the bearing roller 10 from tilting inside the bearing, ensuring the accurate positioning of the bearing roller 10, thereby improving the overall rotational accuracy of the bearing.

[0019] The positioning pin 2 includes a positioning pin 21, and a positioning sleeve 22 is fitted on the outside of the positioning pin 21. The two sets of positioning pins 21 are vertically fixed to the top surface of the positioning platform 1, and the positioning sleeve 22 can rotate on the positioning pin 21.

[0020] The adjusting slide 3 is set in the T-shaped slot, and the bottom of the adjusting slide 3 penetrates the bottom surface of the positioning platform 1. The moving direction of the adjusting slider 4 is controlled by adjusting the adjusting slide 3.

[0021] The adjusting slider 4 includes a slider body 41, an adjusting screw 42 inserted in the middle of the slider body 41, a screw handle 43 at the end of the adjusting screw 42, the slider body 41 is inserted into the adjusting groove 3, the end of the adjusting screw 42 is inserted into the bottom of the adjusting groove 3, the adjusting screw 42 and the slider body 41 are connected by threads, and the slider body 41 is moved by rotating the adjusting screw 42 through the screw handle 43.

[0022] The adjusting column 5 includes a movable pin 51, and a movable sleeve 52 is fitted on the outside of the movable pin 51. The movable pin 51 is vertically fixed to the top surface of the slider body 41, and the movable sleeve 52 is supported by the movable pin 51.

[0023] The connecting support 6 includes a support body 61, with a connecting hole 62 at the center of the support body 61. The support body 61 is vertically fixed to the top surface of the positioning platform 1, and the connecting hole 62 is prism-shaped.

[0024] The movable rod 7 includes a connecting base 71, a connecting base 72 is provided on the top of the connecting base 71, a connecting shaft 73 is inserted through the top of the connecting base 72, and a connecting rod 74 is installed through the middle of the connecting shaft 73. The connecting base 72 is fixed to the top of the connecting support 6 through the connecting base 71.

[0025] The connecting base 71 includes a connecting shaft 711, and a connecting prism 712 is provided at the bottom of the connecting shaft 711. The connecting prism 712 is inserted into the connecting hole 62, and the connecting shaft 711 is connected to the connecting support column 6 through the connecting prism 712.

[0026] The support block 8 includes a connecting block 81, a pressure block 82 is provided at the bottom of the connecting block 81, and a connecting pin 83 is provided on the side of the connecting block 81. The connecting block 81 is located at the end of the connecting rod 74, and the connecting pin 83 is inserted and connected to the side of the connecting block 81 and the end of the connecting rod 74. The connecting block 81 is connected to the connecting rod 74 through the connecting pin 83.

[0027] The clamping assembly 9 includes a button 91, a pressure post 92 at the bottom of the button 91, and a positioning pressure plate 93 at the bottom of the pressure post 92. The pressure post 92 is inserted at the center of the connecting block 81. By pressing the button 91, the positioning pressure plate 93 at the bottom of the pressure post 92 is pressed against the bearing roller 10 and the top surface of the isolation block 12, thus fixing the position of the already installed bearing roller 10 during the bearing installation process.

[0028] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A precision positioning device for crossed cylindrical roller bearings, characterized in that, The system includes a positioning platform (1), a positioning column (2) on the top of the positioning platform (1), an adjustment groove (3) on the side of the positioning platform (1), an adjustment slider (4) installed inside the adjustment groove (3), an adjustment column (5) on the top of the adjustment slider (4), a connecting support column (6) at the center of the top of the positioning platform (1), a movable rod (7) on the top of the connecting support column (6), a support block (8) at the end of the movable rod (7), and a clamping component (9) inserted on the support block (8). The positioning column (2) and the adjusting slider (4) constitute the fixed assembly of the bearing. The movable rod (7) is installed on the top of the positioning platform (1) through the connecting column (6). The pressing assembly (9) is connected to the end of the movable rod (7) through the support block (8).

2. The precision positioning device for crossed cylindrical roller bearings as described in claim 1, characterized in that, The positioning post (2) includes a positioning pin (21), and the positioning pin (21) is fitted with a positioning sleeve (22). The two sets of positioning pins (21) are vertically fixed to the top surface of the positioning platform (1).

3. The precision positioning device for crossed cylindrical roller bearings as described in claim 1, characterized in that, The adjusting slide (3) is set in a T-shaped slot, and the bottom of the adjusting slide (3) penetrates the bottom surface of the positioning platform (1).

4. The precision positioning device for crossed cylindrical roller bearings as described in claim 1, characterized in that, The adjusting slider (4) includes a slider body (41), an adjusting screw (42) is inserted through the middle of the slider body (41), a screw handle (43) is provided at the end of the adjusting screw (42), the slider body (41) is inserted into the adjusting groove (3), the end of the adjusting screw (42) is inserted into the bottom of the adjusting groove (3), and the adjusting screw (42) and the slider body (41) are connected by threads.

5. The precision positioning device for crossed cylindrical roller bearings as described in claim 1, characterized in that, The adjusting column (5) includes a movable pin (51), and a movable sleeve (52) is fitted on the outside of the movable pin (51). The movable pin (51) is vertically fixed to the top surface of the slider body (41).

6. The precision positioning device for crossed cylindrical roller bearings as described in claim 1, characterized in that, The connecting support (6) includes a support body (61), and a connecting hole (62) is provided in the center of the support body (61). The support body (61) is vertically fixed to the top surface of the positioning platform (1), and the connecting hole (62) is set in the shape of a prism.

7. The precision positioning device for crossed cylindrical roller bearings as described in claim 1, characterized in that, The movable rod (7) includes a connecting base (71), a connecting base (72) is provided on the top of the connecting base (71), a connecting shaft (73) is inserted through the top of the connecting base (72), and a connecting rod (74) is inserted through the middle of the connecting shaft (73).

8. The precision positioning device for crossed cylindrical roller bearings as described in claim 7, characterized in that, The connecting base (71) includes a connecting shaft (711), and a connecting prism (712) is provided at the bottom of the connecting shaft (711). The connecting prism (712) is inserted into the connecting hole (62).

9. The precision positioning device for crossed cylindrical roller bearings as described in claim 1, characterized in that, The support block (8) includes a connecting block (81), a pressure block (82) is provided at the bottom of the connecting block (81), a connecting pin (83) is provided on the side of the connecting block (81), the connecting block (81) is located at the end of the connecting rod (74), and the connecting pin (83) is inserted and connected to the side of the connecting block (81) and the end of the connecting rod (74).

10. The precision positioning device for crossed cylindrical roller bearings as described in claim 1, characterized in that, The clamping assembly (9) includes a button (91), a pressure post (92) is provided at the bottom of the button (91), a positioning pressure plate (93) is provided at the bottom of the pressure post (92), and the pressure post (92) is inserted at the center of the connecting block (81).

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