An assembly device for crossed roller bearings

Abstract

This utility model relates to the field of bearing manufacturing, specifically to an assembly device for crossed roller bearings. The device includes an installation platform, fixed columns, a fixed groove, a fixed slider, a movable column, an adjusting groove, a support frame, a positioning base, and a pressure device. In use, the inner and outer rings of the bearing are assembled, and then the bearing fixing plug is installed. The position of the positioning base is adjusted so that the positioning pin passes through a tapered pin hole on the outer ring from below, allowing the positioning pin to pass through the outer ring and the bearing fixing plug. The movable column and two sets of fixed columns work together to clamp the outer ring, fixing the bearing assembly onto the plane of the installation platform. A tapered pin is inserted into the tapered pin hole, and then the pressure device presses the tapered pin into the hole, fixing the bearing fixing plug inside the outer ring. During installation, the bearing fixing plug can be adjusted to a suitable position, reducing the probability of bearing malfunction and thus improving the finished product qualification rate.

Description

Technical Field

[0001] This utility model relates to the field of bearing manufacturing, specifically to an assembly device for crossed roller bearings. Background Technology

[0002] Standard high-precision crossed roller bearings are core components of robot arm joints and rotating parts. Their key performance indicators, such as smooth operation and repeatability, are crucial. In the existing technology, the integrated inner and outer ring crossed roller bearings generally have a jamming phenomenon after assembly, which significantly affects the product qualification rate. Analysis shows that this problem mainly stems from the excessive positional deviation generated during the assembly of the plug and the tapered pin, which causes the roller to scrape or interfere with the plug during operation. Specifically, this manifests as: improper plug insertion depth, skewed rotation axis, and excessive clearance between the roller and the plug hole.

[0003] In the prior art, some solutions improve bearing performance by improving measuring devices or optimizing processing technology. However, they fail to systematically optimize the positioning accuracy and fit clearance of the tapered pins in the assembly process, making it difficult to effectively solve the problem of running jam. Therefore, an assembly device for crossed roller bearings is proposed. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the present invention provides an assembly device for crossed roller bearings.

[0005] To solve the above technical problems, this utility model provides the following technical solution: an assembly device for crossed roller bearings, including an installation platform, a fixed column provided on the top of the installation platform, a fixed groove provided at one end of the installation platform, a fixed slider installed inside the fixed groove, a movable column installed on the top of the fixed slider, an adjustment groove provided at the other end of the installation platform, a support frame installed inside the adjustment groove, a positioning base provided at the bottom of the support frame, and a pressure device provided at the top of the support frame;

[0006] Both sets of fixed columns are vertically fixed to the top surface of the installation platform, the movable column is vertically fixed to the top surface of the fixed slider, the fixed slider is adjustable in position inside the fixed groove, the movable column moves simultaneously with the fixed slider, and the support frame drives the positioning base and pressure equipment to move in the adjustment groove.

[0007] Preferably, the fixed column includes a fixed upright, on which a fixed rotating cylinder is fitted, and the fixed upright is vertically fixed to the top surface of the installation platform.

[0008] Preferably, the fixing groove includes a groove body, a limiting slide rod is installed inside the groove body, the groove body is opened at the side end of the installation platform, and two sets of the limiting slide rods are symmetrically fixed on both sides inside the groove body.

[0009] Preferably, the fixed slider includes a slider body, an adjusting screw is inserted into 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 groove, the two ends of the slider body are fitted onto the limiting slide rod, the end of the adjusting screw is inserted into the groove, and the adjusting screw is connected to the slider body by a thread.

[0010] Preferably, the movable column includes a movable upright, and a movable rotating cylinder is fitted around the movable upright. The movable upright is vertically fixed to the top surface of the slider body.

[0011] Preferably, a guide rail is installed at the bottom of the adjustment groove, and two sets of guide rails are respectively arranged on both sides of the bottom of the adjustment groove.

[0012] Preferably, the support frame has a support base at its bottom, and slide rail connecting frames are provided on both sides of the support base, with the slide rail connecting frames connected to the bottom of the guide slide rail.

[0013] Preferably, the positioning base includes a base body, a return spring is installed in the top opening of the base body, a positioning pin is connected to the top of the return spring, the base body is fixed to the top of the bracket base, the base body is inserted into the adjustment groove, and the positioning pin is set at the top of the top opening of the base body.

[0014] Preferably, the pressure device includes a device body, a pressure column is provided at the bottom of the device body, the device body is fixed to the top of the support frame, and the position of the pressure column corresponds to the positioning pin.

[0015] Preferably, a pressure plate is provided at the bottom of the pressure column, and the area of ​​the pressure plate is larger than the area of ​​the bottom end of the pressure column.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model includes an installation platform with fixed columns at the top. One end of the platform has a fixed groove containing a fixed slider, and a movable column is mounted on top of the slider. The other end has an adjustment groove containing a support frame. The support frame has a positioning base at its bottom and a pressure device at its top. Both sets of fixed columns are vertically fixed to the top surface of the platform, and the movable column is vertically fixed to the top surface of the fixed slider. The fixed slider's position within the fixed groove is adjustable, and the movable column moves simultaneously with the fixed slider. The support frame moves the positioning base and pressure device within the adjustment groove. In use, the bearing inner ring and outer ring are combined and the bearing is then installed. After fixing the plug, place the entire bearing on the top surface of the installation platform. Adjust the position of the positioning base so that the positioning pin passes through the tapered pin hole on the outer ring of the bearing from below. The positioning pin passes through the outer ring of the bearing and is fixed to the bearing plug. Move the fixed slider, which drives the movable column to move. The movable column and the two sets of fixed columns work together to clamp the outside of the outer ring of the bearing, so that the bearing is fixed on the plane of the installation platform. Insert the tapered pin into the tapered pin hole, and then use a pressure device to press the tapered pin into the tapered pin hole, so that the bearing plug is fixed inside the outer ring of the bearing. During installation, the bearing plug can be adjusted to a suitable position, reducing the probability of bearing operation obstruction and thus improving the finished product qualification rate.

[0018] 2. This utility model also includes a positioning base comprising a base body, a return spring installed in the top opening of the base body, a positioning pin connected to the top of the return spring, the base body being fixed to the top of the support base, the base body being inserted into the adjustment groove, and the positioning pin being set at the top of the top opening of the base body. During the installation of the tapered pin, the positioning pin is pushed out of the tapered pin hole by the tapered pin. After the installed bearing is removed, the positioning pin is pushed out by the return spring to reset the positioning pin, facilitating the installation of the next set of bearings. The pressure device includes a device body, a pressure column provided at the bottom of the device body, the device body being fixed to the top of the support frame, the pressure column being positioned corresponding to the positioning pin, and pressure being applied to the tapered pin by the pressure column to insert the tapered pin into the tapered pin hole opened on the outer ring of the bearing. A pressure plate is provided at the bottom of the pressure column, the area of ​​the pressure plate being larger than the area of ​​the bottom end of the pressure column, thereby increasing the area of ​​the bottom of the pressure column and facilitating the pressure column to apply pressure to the top of the tapered pin. Attached Figure Description

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

[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the bottom structure of this utility model;

[0022] Figure 4This is a schematic diagram of the fixing component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the conical pin mounting assembly of this utility model.

[0024] The numbers in the diagram represent:

[0025] 1. Installation platform; 2. Fixed column; 21. Fixed upright; 22. Fixed rotating drum; 3. Fixed groove; 31. Groove body; 32. Limiting slide bar; 4. Fixed slider; 41. Slider body; 42. Adjusting screw; 43. Screw handle; 5. Movable column; 51. Movable upright; 52. Movable rotating drum; 6. Adjusting groove; 61. Guide slide rail; 7. Support frame; 71. Support base; 72. Slide rail connecting frame; 8. Positioning base; 81. Base body; 82. Return spring; 83. Positioning pin; 9. Pressure equipment; 91. Equipment body; 92. Pressure column; 921. Pressure plate. Detailed Implementation

[0026] 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.

[0027] Example:

[0028] like Figure 1 - Figure 5 As shown, this utility model provides an assembly device for crossed roller bearings, including an installation platform 1, a fixed column 2 on the top of the installation platform 1, a fixed groove 3 at one end of the installation platform 1, a fixed slider 4 installed inside the fixed groove 3, a movable column 5 installed on the top of the fixed slider 4, an adjustment groove 6 at the other end of the installation platform 1, a support frame 7 installed inside the adjustment groove 6, a positioning base 8 at the bottom of the support frame 7, and a pressure device 9 at the top of the support frame 7.

[0029] Both sets of fixed columns 2 are vertically fixed to the top surface of the mounting platform 1, and the movable column 5 is vertically fixed to the top surface of the fixed slider 4. The fixed slider 4 is adjustable in position inside the fixed groove 3. The movable column 5 moves simultaneously with the fixed slider 4. The support frame 7 drives the positioning base 8 and the pressure device 9 to move in the adjustment groove 6. In use, the bearing inner ring and the bearing outer ring are combined and the bearing fixing plug is installed. Then, the entire bearing is placed on the top surface of the mounting platform 1. The position of the positioning base 8 is adjusted so that the positioning pin 83 passes through the tapered pin hole opened on the bearing outer ring from below. The positioning pin 83 passes through the bearing outer ring and the bearing fixing plug. The fixed slider 4 is moved, and the movable column 5 is moved through the fixed slider 4. The movable column 5 and the two sets of fixed columns 2 work together to clamp the outside of the bearing outer ring, so that the bearing is fixed on the plane of the mounting platform 1. A tapered pin is inserted into the tapered pin hole. Then, the pressure device 9 presses the tapered pin into the tapered pin hole, so that the bearing fixing plug is fixed inside the bearing outer ring.

[0030] The fixed column 2 includes a fixed upright 21, on which a fixed rotating cylinder 22 is fitted. The fixed upright 21 is vertically fixed to the top surface of the installation platform 1 and supports the fixed rotating cylinder 22. The fixed rotating cylinder 22 can rotate on the fixed upright 21.

[0031] The fixing groove 3 includes a groove body 31, and a limiting slide rod 32 is installed inside the groove body 31. The groove body 31 is opened at the side end of the installation platform 1, and two sets of limiting slide rods 32 are symmetrically fixed on both sides inside the groove body 31.

[0032] The fixed slider 4 includes a slider body 41, an adjusting screw 42 inserted into the middle of the slider body 41, a screw handle 43 at the end of the adjusting screw 42, the slider body 41 is installed inside the groove 31, the two ends of the slider body 41 are fitted onto the limiting slide rod 32, the end of the adjusting screw 42 is inserted into the groove 31, the adjusting screw 42 and the slider body 41 are connected by threads, the adjusting screw 42 is rotated by rotating the screw handle 43, and the slider body 41 is moved by the adjusting screw 42 under the action of the threads.

[0033] The movable column 5 includes a movable upright 51, and a movable rotating cylinder 52 is fitted on the outside of the movable upright 51. The movable upright 51 is vertically fixed to the top surface of the slider body 41, and the movable rotating cylinder 52 is fixed to the top of the slider body 41 through the movable upright 51.

[0034] The bottom of the adjustment groove 6 is equipped with guide rails 61, and two sets of guide rails 61 are respectively set on both sides of the bottom of the adjustment groove 6.

[0035] The support frame 7 has a support base 71 at the bottom, and slide rail connecting frames 72 are provided on both sides of the support base 71. The slide rail connecting frames 72 are connected to the bottom of the guide slide rail 61. The support frame 7 moves along the guide slide rail 61 through the connection between the slide rail connecting frames 72 and the guide slide rail 61.

[0036] The positioning base 8 includes a base body 81. A return spring 82 is installed in the opening at the top of the base body 81. A positioning pin 83 is connected to the top of the return spring 82. The base body 81 is fixed to the top of the bracket base 71 and is inserted into the adjustment groove 6. The positioning pin 83 is set at the top of the opening at the top of the base body 81. During the installation of the tapered pin, the positioning pin 83 is pushed out of the tapered pin hole by the tapered pin. After the installed bearing is removed, the positioning pin 83 is pushed out by the return spring 82 to reset the positioning pin 83, which facilitates the installation of the next set of bearings.

[0037] The pressure device 9 includes a main body 91, with a pressure column 92 at the bottom of the main body 91. The main body 91 is fixed to the top of the support frame 7. The position of the pressure column 92 corresponds to the positioning pin 83. Pressure is applied to the tapered pin through the pressure column 92, and the tapered pin is inserted into the tapered pin hole opened on the outer ring of the bearing.

[0038] A pressure plate 921 is provided at the bottom of the pressure column 92. The area of ​​the pressure plate 921 is larger than the area of ​​the bottom end of the pressure column 92. The pressure plate 921 increases the area of ​​the bottom of the pressure column 92, making it easier for the pressure column 92 to apply pressure to the top of the conical pin.

[0039] 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. An assembly device for a crossed roller bearing, characterized in that, The installation platform (1) includes a fixed column (2) on the top of the installation platform (1), a fixed groove (3) on one end of the installation platform (1), a fixed slider (4) installed inside the fixed groove (3), a movable column (5) installed on the top of the fixed slider (4), an adjustment groove (6) on the other end of the installation platform (1), a support frame (7) installed inside the adjustment groove (6), a positioning base (8) at the bottom of the support frame (7), and a pressure device (9) at the top of the support frame (7). Both sets of fixed columns (2) are vertically fixed to the top surface of the installation platform (1), the movable column (5) is vertically fixed to the top surface of the fixed slider (4), the fixed slider (4) is adjustable in position inside the fixed groove (3), the movable column (5) moves simultaneously with the fixed slider (4), and the support frame (7) drives the positioning base (8) and the pressure device (9) to move in the adjustment groove (6).

2. The assembly device for a crossed roller bearing as described in claim 1, characterized in that, The fixed column (2) includes a fixed pole (21), on which a fixed rotating cylinder (22) is fitted. The fixed pole (21) is vertically fixed to the top surface of the installation platform (1).

3. The assembly device for a crossed roller bearing as described in claim 1, characterized in that, The fixing groove (3) includes a groove body (31), and a limiting slide rod (32) is installed inside the groove body (31). The groove body (31) is opened at the side end of the installation platform (1), and two sets of the limiting slide rods (32) are symmetrically fixed on both sides inside the groove body (31).

4. The assembly device for a crossed roller bearing as described in claim 1, characterized in that, The fixed slider (4) includes a slider body (41), an adjusting screw (42) is inserted into 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 groove (31), the two ends of the slider body (41) are fitted onto the limiting slide rod (32), the end of the adjusting screw (42) is inserted into the groove (31), and the adjusting screw (42) and the slider body (41) are connected by threads.

5. The assembly device for a crossed roller bearing as described in claim 1, characterized in that, The movable column (5) includes a movable upright (51), and a movable rotating cylinder (52) is fitted on the outside of the movable upright (51). The movable upright (51) is vertically fixed to the top surface of the slider body (41).

6. The assembly device for a crossed roller bearing as described in claim 1, characterized in that, The bottom of the adjustment groove (6) is equipped with guide rails (61), and two sets of guide rails (61) are respectively set on both sides of the bottom of the adjustment groove (6).

7. The assembly device for a crossed roller bearing as described in claim 1, characterized in that, The support frame (7) has a support base (71) at the bottom, and slide rail connecting frames (72) are provided on both sides of the support base (71). The slide rail connecting frames (72) are connected to the bottom of the guide slide rail (61).

8. The assembly device for a crossed roller bearing as described in claim 1, characterized in that, The positioning base (8) includes a base body (81), a reset spring (82) is installed in the top opening of the base body (81), a positioning pin (83) is connected to the top of the reset spring (82), the base body (81) is fixed to the top of the bracket base (71), the base body (81) is inserted into the adjustment groove (6), and the positioning pin (83) is set at the top of the top opening of the base body (81).

9. The assembly device for a crossed roller bearing as described in claim 1, characterized in that, The pressure device (9) includes a device body (91), a pressure column (92) is provided at the bottom of the device body (91), the device body (91) is fixed to the top of the support frame (7), and the position of the pressure column (92) corresponds to the positioning pin (83).

10. The assembly device for a crossed roller bearing as described in claim 9, characterized in that, The pressure column (92) is provided with a pressure plate (921) at the bottom, and the area of ​​the pressure plate (921) is larger than the area of ​​the bottom end of the pressure column (92).

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