A press-fitting tool for a cross roller bearing seal ring

Abstract

The utility model relates to a press-fitting tool for a cross roller bearing sealing ring, comprising a base, a support column is fixedly connected to one side of the top of the base, a positioning hole for assisting in positioning the cross roller bearing is opened on the top of the base, a positioning rod is arranged directly above the positioning hole, a slide is fixedly connected to the top of the positioning rod, one side of the slide is connected to the support column by a lifting mechanism, and a press-fitting assembly is arranged on the outer wall of the positioning rod. The utility model relates to the technical field of bearing press-fitting. The press-fitting tool for the cross roller bearing sealing ring can automatically align the cross roller bearing with the sealing ring through the provided positioning rod and the press-fitting assembly, and then directly press the sealing ring into the cross roller bearing, which can avoid flanging of the sealing ring during the press-fitting process and greatly improve the press-fitting efficiency of the sealing ring.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing press-fitting, in particular to a press-fitting tool for a cross roller bearing sealing ring. Background Art

[0002] The internal structure of the cross roller bearing is that the rollers are arranged perpendicularly at 90 degrees, and there are spacers or isolation blocks between the rollers. These spacers or isolation blocks can prevent the rollers from tilting or rubbing against each other, which effectively prevents the increase of rotational torque. It also avoids the occurrence of one-sided contact or locking of the rollers.

[0003] In the prior art, because the inner ring and outer ring of the bearing are independent of each other, a gap is inevitably present between the inner ring and the outer ring of the bearing, causing dust to enter the bearing through the gap, causing the roller to come into contact with the dust when rolling, thereby increasing friction and causing damage to the roller and the inner wall of the bearing. Therefore, a sealing ring is pressed between the outer ring and the inner ring.

[0004] However, the chamfer of the cross roller bearing is small and the interference fit of the sealing ring is large. The sealing ring needs to be aligned with the gap between the inner ring and the outer ring during the press-fitting process. Otherwise, the sealing ring will be flanged during the press-fitting process, and the flanged sealing ring will need to be removed and pressed again, which seriously affects the press-fitting efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide a press-fitting tool for a cross roller bearing seal ring so as to solve the technical problems mentioned in the above background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A press-fitting tool for a cross roller bearing sealing ring comprises a base, a support column is fixedly connected to one side of the top of the base, a positioning hole for assisting in positioning the cross roller bearing is opened on the top of the base, a positioning rod is arranged directly above the positioning hole, a slide is fixedly connected to the top of the positioning rod, one side of the slide is connected to the support column by a lifting mechanism, and a press-fitting component is arranged on the outer wall of the positioning rod.

[0008] Further, the press-fitting assembly comprises a material storage tube, a press-fitting ring and an adjusting ring, the outer side wall of the positioning rod is slidably connected with the material storage tube, the press-fitting ring and the adjusting ring, wherein the press-fitting ring is arranged in the material storage tube, the adjusting ring is rotatably connected to the top of the material storage tube through a one-way bearing, and a driving member is arranged between the top of the adjusting ring and the slide table;

[0009] The outer side wall of the positioning rod is provided with a first track groove, the first track groove rotates half a circle in a right-hand spiral direction, and the inner side wall of the adjustment ring is connected with a ball 1 rollingly arranged in the first track groove;

[0010] The inner wall of the material storage tube is provided with a second track groove, and the second track groove extends from top to bottom in a right-hand spiral direction to the bottom of the inner wall of the material storage tube;

[0011] The inner side wall of the press-fitting ring is slidably connected to the positioning rod through a positioning key, and the outer side wall of the press-fitting ring is connected to a second ball rollingly arranged in the second track groove.

[0012] Furthermore, the driving member includes a support spring and a support block, the support spring is arranged between the slide and the adjustment ring, the bottom of the slide is located on the outer side of the support spring, and a plurality of support blocks are arranged in a circular array, and the distance from the bottom of the support block to the adjustment ring is equal to the pitch length of the second track groove.

[0013] Furthermore, the inner wall of the material storage tube is protruded below the second track groove to form a limiting portion, and the outer wall of the limiting portion on one side away from the material storage tube is processed with a smooth round surface.

[0014] Furthermore, the bottom diameter of the positioning rod gradually decreases from top to bottom, so that the bottom of the positioning rod forms an inclined guiding surface.

[0015] Furthermore, the lifting mechanism includes a motor, a slider and a screw rod. The side wall of the support column is provided with a sliding groove and is slidably connected to the slider. One side of the slider is fixedly connected to the slide table. A screw rod threadedly connected to the slider is arranged in the sliding groove. The top of the support column is fixedly connected to a motor for driving the screw rod.

[0016] In summary, the present invention includes at least one of the following beneficial technical effects:

[0017] 1. This press-fitting tool for the cross roller bearing seal ring can automatically align the cross roller bearing with the seal ring through the provided positioning rod and the press-fitting assembly, and then directly press the seal ring into the cross roller bearing, which can avoid the seal ring from flanging during the press-fitting process, and greatly improve the press-fitting efficiency of the seal ring;

[0018] 2. The press-fitting tool for the cross roller bearing sealing ring can be used to push the press-fitting component to reset through the provided driving member, so that the press-fitting component can continuously and efficiently press the sealing ring into the cross roller bearing, further improving the press-fitting efficiency of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The utility model is a schematic structural diagram of a press-fitting tool for a cross roller bearing sealing ring.

[0021] Figure 2 The utility model is a schematic diagram of the internal structure of a press-fitting tool for a cross roller bearing sealing ring.

[0022] Figure 3 The utility model is a schematic structural diagram of a press-fitting assembly in a press-fitting tool for a cross roller bearing sealing ring.

[0023] Figure 4 The utility model is a schematic structural diagram of a positioning rod in a press-fitting tool for a cross roller bearing sealing ring.

[0024] Figure 5 The utility model is a schematic structural diagram of a material storage tube in a press-fitting tool for a cross roller bearing sealing ring.

[0025] In the figure, 1. base; 2. support column; 3. positioning hole; 4. positioning rod; 5. slide; 6. lifting mechanism; 61. motor; 62. slider; 63. screw rod; 7. press-fit assembly; 71. storage tube; 72. press-fit ring; 73. adjustment ring; 8. driving member; 81. support spring; 82. support block; 9. first track groove; 10. ball one; 11. second track groove; 12. ball two; 13. limit part; 14. guide surface; 15. slide groove; 16. one-way bearing. DETAILED DESCRIPTION

[0026] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0027] Example:

[0028] Reference Figure 1 - Figure 5 The utility model discloses a press-fitting tool for a cross roller bearing sealing ring, comprising a base 1, a support column 2 is fixedly connected to one side of the top of the base 1, a positioning hole 3 for auxiliary positioning of the cross roller bearing is opened on the top of the base 1, a positioning rod 4 is arranged directly above the positioning hole 3, a slide 5 is fixedly connected to the top of the positioning rod 4, one side of the slide 5 is connected to the support column 2 by a lifting mechanism 6, and a press-fitting component 7 is arranged on the outer wall of the positioning rod 4.

[0029] In this embodiment, when the sealing ring is pressed, the cross roller bearing is placed on the base 1, and then the inner hole of the cross roller bearing is located above the positioning hole 3, and then the slide 5 is lowered by the lifting mechanism 6, and the positioning rod 4 at the bottom of the slide 5 is located directly above the positioning hole 3. Therefore, when the slide 5 moves down, the positioning rod 4 will be directly inserted into the inner hole of the cross roller bearing, so that the cross roller bearing is positioned by using the positioning rod 4, and finally the sealing ring is pressed into the cross roller bearing through the press-fitting assembly 7, so as to avoid the sealing ring from flanging due to the misaligned gap during press-fitting, which can effectively improve the press-fitting efficiency of the sealing ring.

[0030] In a further preferred embodiment of the present invention, Figure 3 As shown, the press-fit assembly 7 includes a material storage tube 71, a press-fit ring 72 and an adjusting ring 73, and the outer wall of the positioning rod 4 is slidably connected with the material storage tube 71, the press-fit ring 72 and the adjusting ring 73, wherein the press-fit ring 72 is arranged in the material storage tube 71, and the adjusting ring 73 is rotatably connected to the top of the material storage tube 71 through a one-way bearing 16, and a driving member 8 is arranged between the top of the adjusting ring 73 and the slide 5;

[0031] The outer wall of the positioning rod 4 is provided with a first track groove 9, which rotates half a circle in a right-hand spiral direction, and the inner wall of the adjustment ring 73 is connected with a ball 10 rollingly arranged in the first track groove 9;

[0032] The inner wall of the material storage tube 71 is provided with a second track groove 11, and the second track groove 11 extends from top to bottom in a right-hand spiral direction to the bottom of the inner wall of the material storage tube 71;

[0033] The inner side wall of the press-fitting ring 72 is slidably connected to the positioning rod 4 via a positioning key, and the outer side wall of the press-fitting ring 72 is connected to a ball 12 rollingly arranged in the second track groove 11 .

[0034] In this embodiment, by providing a first track groove 9 on the positioning rod 4, the storage tube 71 contacts the surface of the cross roller bearing and is squeezed by the cross roller bearing to move upward along the axis of the positioning rod 4, pushing the adjustment ring 73 to move upward along the axis of the positioning rod 4, and then the ball 10 provided in the adjustment ring 73 will roll along the first track groove 9, driving the adjustment ring 73 to rotate, so that the adjustment ring 73 rotates with the storage tube 71 through the one-way bearing 16. At this time, the second track groove 11 in the storage tube 71 rotates, and the ball 2 12 is pushed to move downward along the axis of the positioning rod 4 through the second track groove 11. Finally, the press-fit ring 72 is moved downward through the ball 2 12, and the sealing ring in the storage tube 71 is pushed out of the storage tube 71 and pressed into the cross roller bearing.

[0035] When the sealing ring is pressed into the cross roller bearing, the sealing ring will be restricted by the inner wall of the storage tube 71 to prevent the sealing ring from shifting the gap with the cross roller bearing during the pressing process and causing flanging, which can effectively improve the quality of the pressing.

[0036] After the sealing ring is pressed and installed, the slide 5 is driven upward by the lifting mechanism 6. At this time, the positioning rod 4 rises with the slide 5, and the adjusting ring 73 is pushed down by the driving member 8, so that the ball 10 in the adjusting ring 73 is reset in the first track groove 9. At this time, the one-way bearing 16 cannot rotate with the storage tube 71, so that the pressing ring 72 located in the storage tube 71 maintains the current position, so that the next time the pressing assembly 7 contacts the cross roller bearing, the sealing ring located in the storage tube 71 can continue to be pressed into the cross roller bearing, thereby achieving the effect of continuous pressing, and further improving the pressing efficiency of the sealing ring.

[0037] In a further preferred embodiment of the present invention, Figure 2 As shown, the driving member 8 includes a support spring 81 and a support block 82. The support spring 81 is arranged between the slide 5 and the adjustment ring 73. The bottom of the slide 5 is located on the outer side of the support spring 81. A plurality of support blocks 82 are arranged in a circular array. The distance from the bottom of the support block 82 to the adjustment ring 73 is equal to the pitch length of the second track groove 11.

[0038] In this embodiment, a support spring 81 is provided to push the adjustment ring 73 to reset, so that the press-fitting assembly 7 can continuously press-fit the sealing ring. The support block 82 provided can provide protection for the support spring 81, thereby preventing the support spring 81 from being damaged by excessive squeezing, thereby effectively improving the service life of the support spring 81.

[0039] The distance between the bottom of the support block 82 and the adjusting ring 73 is equal to the pitch length of the second track groove 11. When the support block 82 contacts the adjusting ring 73, the press-fit ring 72 in the material storage tube 71 rotates one circle to push the sealing ring down and press the sealing ring into the cross roller bearing.

[0040] In a further preferred embodiment of the present invention, Figure 3 and Figure 5 As shown, the inner wall of the material storage tube 71 is located below the second track groove 11 and protrudes to form a limiting portion 13, and the outer wall of the limiting portion 13 on one side away from the material storage tube 71 is processed with a smooth round surface.

[0041] In this embodiment, a limiting portion 13 is provided on the inner wall of the material storage tube 71 to squeeze the sealing ring and prevent the sealing ring from falling out of the material storage tube 71 due to the action of gravity. The surface of the limiting portion 13 is set as a smooth round surface to avoid damage to the sealing ring when the sealing ring is squeezed out of the material storage tube 71 by the press-fitting ring 72.

[0042] In a further preferred embodiment of the present invention, Figure 4 As shown, the bottom diameter of the positioning rod 4 gradually decreases from top to bottom, so that the bottom of the positioning rod 4 forms an inclined guiding surface 14.

[0043] In this embodiment, because it is impossible to ensure that the cross roller bearing can be accurately placed directly above the positioning hole 3 every time when placing the cross roller bearing, a guide surface 14 is provided at the bottom of the positioning rod 4, so that the bottom of the positioning rod 4 can be inserted into the inner hole of the cross roller bearing to push the cross roller bearing to move, thereby correcting the deviation of the cross roller bearing, thereby keeping the cross roller bearing aligned with the sealing ring.

[0044] In a further preferred embodiment of the present invention, Figure 2 As shown, the lifting mechanism 6 includes a motor 61, a slider 62 and a screw rod 63. A slide groove 15 is provided on the side wall of the support column 2 and is slidably connected to the slider 62. One side of the slider 62 is fixedly connected to the slide table 5. A screw rod 63 threadedly connected to the slider 62 is provided in the slide groove 15. The top of the support column 2 is fixedly connected to a motor 61 for driving the screw rod 63.

[0045] In this embodiment, the motor 61 is provided to drive the screw rod 63 to rotate, so that the slider 62 can quickly rise and fall in the slide groove 15, thereby moving the slide table 5 up and down, which can effectively improve the press-fitting efficiency of the sealing ring.

[0046] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A press-fitting tool for a cross roller bearing seal ring, comprising a base (1), a top side of the base (1) being fixedly connected to a support column (2), characterized in that: A positioning hole (3) for assisting in positioning the cross roller bearing is provided at the top of the base (1); a positioning rod (4) is provided directly above the positioning hole (3); a slide (5) is fixedly connected to the top of the positioning rod (4); one side of the slide (5) is connected to the support column (2) via a lifting mechanism (6); and a press-fit assembly (7) is provided on the outer wall of the positioning rod (4).

2. The press-fitting tool for a cross roller bearing seal ring according to claim 1, characterized in that: The press-fitting assembly (7) comprises a material storage tube (71), a press-fitting ring (72) and an adjusting ring (73); the outer side wall of the positioning rod (4) is slidably connected with the material storage tube (71), the press-fitting ring (72) and the adjusting ring (73); the press-fitting ring (72) is arranged in the material storage tube (71); the adjusting ring (73) is rotatably connected to the top of the material storage tube (71) via a one-way bearing (16); and a driving member (8) is arranged between the top of the adjusting ring (73) and the slide table (5); The outer wall of the positioning rod (4) is provided with a first track groove (9), the first track groove (9) rotates in a right-hand spiral direction by half a circle, and the inner wall of the adjustment ring (73) is connected to a ball (10) rollingly arranged in the first track groove (9); The inner side wall of the material storage tube (71) is provided with a second track groove (11), and the second track groove (11) extends from top to bottom in a right-hand spiral direction to the bottom of the inner side wall of the material storage tube (71); The inner side wall of the press-fitting ring (72) is slidably connected to the positioning rod (4) via a positioning key, and the outer side wall of the press-fitting ring (72) is connected to a second ball (12) rollingly arranged in the second track groove (11).

3. The press-fitting tool for a cross roller bearing seal ring according to claim 2, characterized in that: The driving member (8) comprises a supporting spring (81) and a supporting block (82); the supporting spring (81) is arranged between the slide table (5) and the adjusting ring (73); the bottom of the slide table (5) is located outside the supporting spring (81); a plurality of supporting blocks (82) are arranged in a circular array; the distance from the bottom of the supporting block (82) to the adjusting ring (73) is equal to the pitch length of the second track groove (11).

4. The press-fitting tool for a cross roller bearing seal ring according to claim 2, characterized in that: The inner wall of the material storage tube (71) is located below the second track groove (11) and is protruded to form a limiting portion (13). The outer wall of the limiting portion (13) on a side away from the material storage tube (71) is processed with a smooth round surface.

5. The press-fitting tool for a cross roller bearing seal ring according to claim 1, characterized in that: The bottom diameter of the positioning rod (4) gradually decreases from top to bottom, so that the bottom of the positioning rod (4) forms an inclined guiding surface (14).

6. The press-fitting tool for a cross roller bearing seal ring according to claim 1, characterized in that: The lifting mechanism (6) comprises a motor (61), a slider (62) and a screw rod (63); a sliding groove (15) is provided on the side wall of the support column (2) and is slidably connected to the slider (62); one side of the slider (62) is fixedly connected to the slide table (5); a screw rod (63) threadedly connected to the slider (62) is provided in the sliding groove (15); and a motor (61) for driving the screw rod (63) is fixedly connected to the top of the support column (2).

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