Bearing mounting device of input shaft

Abstract

The utility model discloses a bearing mounting device of an input shaft, which relates to the technical field of tool clamps and at least comprises an input shaft positioning seat and a bearing pressure head. An input shaft positioning column is arranged at the top of the input shaft positioning seat; the bearing pressing head is in a sleeve shape, a positioning hole is formed in the bearing pressing head and divided into a small-diameter section and a large-diameter section from top to bottom, and an air outlet hole, a plurality of air inlet holes and a plurality of threaded holes are formed in the side wall corresponding to the large-diameter section, a ball fastening screw for clamping and positioning the bearing is arranged in each threaded hole; the air outlet hole and the air inlet hole are positioned at the same height; the outer side of the air outlet hole is connected with a vacuum generator through an air pipe, and the vacuum generator is connected with an external controller. The utility model provides a bearing mounting device of an input shaft, which can effectively prevent the direction of a snap ring groove from being wrongly mounted.

Description

TECHNICAL FIELD

[0001] The utility model relates to tool fixture technical field especially relates to a bearing installation device of input shaft. BACKGROUND

[0002] In the bearing installation production flow of input shaft, whether the installation direction of snap ring groove on the bearing is correct is crucial. The traditional assembly operation depends on artificial visual inspection to determine the direction of snap ring groove, however, this method is easily disturbed by human negligence, visual fatigue and working environment and other factors.

[0003] With the continuous improvement of industrial production automation degree, the production rhythm is accelerated, and the reliability of artificial error prevention cannot meet the needs of large-scale and high-precision production. Once the snap ring groove is installed in the wrong direction, it will cause abnormal operation of the bearing, equipment failure and even damage to the whole mechanical system, which seriously affects the product quality and production efficiency. UTILITY MODEL CONTENTS

[0004] The utility model discloses in order to solve above-mentioned problem, propose a kind of bearing installation device of input shaft, which can effectively prevent the installation of snap ring groove in the wrong direction.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A kind of bearing installation device of input shaft, the bearing is the input shaft bearing with annular snap ring groove on side wall, and snap ring groove is deviated to the end of bearing, the bearing installation device at least includes input shaft positioning seat and bearing pressure head;

[0007] The top of the input shaft positioning seat is provided with an input shaft positioning column;

[0008] The bearing pressure head is sleeve-shaped, and the bearing pressure head is provided with a positioning hole inside, the positioning hole is divided into small-diameter section and large-diameter section from top to bottom, the small-diameter section and the large-diameter section form a shaft shoulder, the hole diameter of the small-diameter section is smaller than the outer diameter of the bearing, the hole diameter of the large-diameter section matches the outer diameter of the bearing, and the side wall corresponding to the large-diameter section is provided with an out-gas hole, a plurality of gas inlets and a plurality of threaded holes penetrating inside and outside;The threaded hole is provided with a wave bead clamping screw for positioning the bearing;The out-gas hole and the gas inlet are located at the same height, when the bearing is clamped in the large-diameter section, if the snap ring groove is located at the upper position of the bearing, the out-gas hole and the gas inlet correspond to the position of the snap ring groove of the bearing;If the snap ring groove is located at the lower position of the bearing, the out-gas hole and the gas inlet correspond to the side wall of the bearing;The outside of the out-gas hole is connected with a vacuum generator through a gas pipe, and the vacuum generator is connected with an external controller.

[0009] Preferably, the lower opening of the large-diameter section of the bearing pressure head is a gradually enlarged horn-shaped guide opening.

[0010] As preferred, the large diameter section of the bearing pressing head is provided with a notch at the lower part to facilitate dismounting of the bearing, and when the bearing is clamped in the large diameter section, the part of the outer wall of the bearing corresponding to the notch position.

[0011] As preferred, the wave bead set screws are all at the same height, and when the bearing is clamped in the large diameter section, if the clamping ring groove is located at the lower position of the bearing, the wave bead set screws all correspond to the clamping ring groove position of the bearing.

[0012] As preferred, the input shaft positioning seat comprises a fixed positioning seat and a movable positioning seat, the movable positioning seat is positioned on the top of the fixed positioning seat through a quick release structure, the input shaft positioning column is located on the top of the movable positioning seat, and the movable positioning seat can be provided with multiple input shaft positioning columns with different diameters.

[0013] As preferred, the quick release structure between the movable positioning seat and the fixed positioning seat is that a limiting shaft is arranged at the center position of the bottom of the movable positioning seat, and a plug hole matched with the limiting shaft is arranged at the top of the fixed positioning seat.

[0014] The utility model has the advantages of 1. effectively avoiding the errors caused by visual fatigue and negligence in manual detection, greatly improving the detection accuracy, effectively preventing the installation error of the clamping ring groove direction; 2. the device is simple and efficient to operate, greatly improving the assembly process efficiency, reducing the rework and part loss caused by error assembly, reducing the production cost, guaranteeing the product quality, enhancing the competitiveness and reliability of the product in the market. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the utility model.

[0016] Figure 2 It is the sectional view of the utility model.

[0017] Figure 3 It is the sectional view of the bearing in the utility model.

[0018] Figure 4 It is the structure schematic diagram before pressing of the utility model.

[0019] Figure 5 It is the structure schematic diagram after pressing of the utility model.

[0020] Figure 6 It is the structure schematic diagram of the bearing error positioning in the utility model.

[0021] Figure 7 It is Figure 6 The enlarged view at a in the figure.

[0022] Figure 8 It is the structure schematic diagram of the bearing correct positioning in the utility model.

[0023] Figure 9 is Figure 8 Enlarged view at b in figure.

[0024] 1: input shaft positioning seat; 101: fixed positioning seat; 102: movable positioning seat; 2: bearing pressing head; 3: input shaft positioning column; 4: small diameter section; 5: large diameter section; 6: air outlet hole; 7: air inlet hole; 8: wave bead fixing screw; 9: vacuum generator; 10: notch; 11: limiting shaft; 12: insertion hole; 13: bearing; 14: snap ring groove; 15: input shaft. DETAILED DESCRIPTION

[0025] The utility model will be further described below in combination with the drawings and specific embodiments.

[0026] A bearing mounting device of an input shaft, referring to Figures 1 to 5 The bearing 13 is an input shaft bearing with an annular snap ring groove 14 on the side wall, and the snap ring groove 14 is offset to one end of the bearing 13. The bearing mounting device at least includes an input shaft positioning seat 1 and a bearing pressing head 2.

[0027] The top of the input shaft positioning seat 1 is provided with an input shaft positioning column 3.

[0028] The input shaft positioning seat 1 includes a fixed positioning seat 101 and a movable positioning seat 102. The movable positioning seat 102 is positioned on the top of the fixed positioning seat 101 through a quick release structure. The quick release structure is that a limiting shaft 11 is arranged at the bottom center of the movable positioning seat 102, and an insertion hole 12 matched with the limiting shaft 11 is arranged on the top of the fixed positioning seat 101. The input shaft positioning column 3 is located on the top of the movable positioning seat 102. The movable positioning seat 102 can be arranged in multiple numbers. The diameters of each input shaft positioning column 3 are different, so that different sizes of input shafts 15 can be compatible by quickly replacing the movable positioning seat 102.

[0029] The bearing pressing head 2 is in the shape of a sleeve. A positioning hole is arranged in the bearing pressing head 2. The positioning hole is divided into a small diameter section 4 and a large diameter section 5 from top to bottom. A shaft shoulder is formed between the small diameter section 4 and the large diameter section 5. The hole diameter of the small diameter section 4 is smaller than the outer diameter of the bearing 13. The hole diameter of the large diameter section 5 is matched with the outer diameter of the bearing 13. An air outlet hole 6, a plurality of air inlet holes 7 and a plurality of threaded holes are arranged on the side wall corresponding to the large diameter section 5.

[0030] The threaded hole is provided with a wave bead fastening screw 8 for clamping and positioning the bearing 13, the positioning bead of the wave bead fastening screw 8 faces the inner side of the positioning hole, and the wave bead fastening screw 8 is located at the same height. When the bearing 13 is clamped in the large diameter section 5, if the clamping ring groove 14 is located at the lower position of the bearing 13, the wave bead fastening screw 8 is located at the position corresponding to the clamping ring groove 14 of the bearing 13. When the bearing 13 is positioned in the large diameter section 5 in the correct direction, the positioning bead at the front end of the wave bead fastening screw 8 is just clamped in the clamping ring groove 14 of the bearing 13, which effectively prevents the bearing 13 from falling out of the bearing pressing head 2 before pressing.

[0031] The air outlet hole 6 and the air inlet hole 7 are located at the same height. When the bearing 13 is clamped in the large diameter section 5, if the clamping ring groove 14 is located at the upper position of the bearing 13, the air outlet hole 6 and the air inlet hole 7 are located at the position corresponding to the clamping ring groove 14 of the bearing 13; if the clamping ring groove 14 is located at the lower position of the bearing 13, the air outlet hole 6 and the air inlet hole 7 are located at the position corresponding to the side wall of the bearing 13; the outer side of the air outlet hole 6 is connected with a vacuum generator 9 through an air pipe, and the vacuum generator 9 is connected with an external controller.

[0032] The lower opening of the large diameter section 5 of the bearing pressing head 2 is a gradually enlarged trumpet-shaped guide opening.

[0033] The lower part of the large diameter section 5 of the bearing pressing head 2 is provided with a notch 10 for facilitating the dismounting of the bearing 13. When the bearing 13 is clamped in the large diameter section 5, part of the outer wall of the bearing 13 corresponds to the position of the notch 10.

[0034] In use, first, select the movable positioning seat 102 with a size suitable for the input shaft positioning column 3, and position it on the fixed positioning seat 101, then vertically position the input shaft 15 on the top of the movable positioning seat 102, and the bottom of the input shaft 15 is sleeved on the input shaft positioning column 3 for accurate positioning through the input shaft positioning column 3.

[0035] Then, clamp the bearing 13 in the large diameter section 5 on the lower side of the bearing pressing head 2, and the top of the bearing 13 abuts against the shaft shoulder between the small diameter section 4 and the large diameter section 5. Subsequently, drive the vacuum generator 9 to work through the external controller and monitor the negative pressure condition of the vacuum generator 9.

[0036] When the clamping ring groove 14 is located at the upper position of the bearing 13, that is, the installation direction of the bearing 13 is wrong, as shown in Figure 6 Figure 7 At this time, the air outlet hole 6 and the air inlet hole 7 correspond to the position of the clamping ring groove 14 of the bearing 13. When the vacuum generator 9 works in suction, air can enter through the air inlet hole 7 on the large diameter section 5, then flow through the clamping ring groove 14, and finally be discharged through the air outlet hole 6. The vacuum generator 9 can smoothly suck air, the negative pressure is small, and the external controller can judge and alarm to remind the operator that the bearing 13 is installed in the wrong direction. ​

[0037] When the snap ring groove 14 is located at the lower position of the bearing 13, i.e. the installation direction of the bearing 13 is correct, as shown in Figure 8 、 Figure 9 , the air outlet hole 6 and the air inlet hole 7 correspond to the side wall of the bearing 13. When the vacuum generator 9 is working, the inside of the air outlet hole 6 is blocked, the vacuum generator 9 cannot smoothly inhale, the negative pressure is large, and the external controller can determine that no alarm occurs.

[0038] Of course, the above setting can also be reversed, i.e. adjusting the position of the air outlet hole 6 and the air inlet hole 7 on the bearing pressing head 2, and finally the implementation mode is: when the bearing 13 is installed correctly, the air outlet hole 6 and the air inlet hole 7 correspond to the position of the snap ring groove 14 of the bearing 13, the vacuum generator 9 can smoothly inhale, the negative pressure is small, and the equipment does not alarm; when the bearing 13 is installed incorrectly, the air outlet hole 6 and the air inlet hole 7 correspond to the side wall of the bearing 13, the vacuum generator 9 cannot smoothly inhale, the negative pressure is large, and the equipment alarms.

[0039] Finally, after determining that the installation direction of the bearing 13 is correct, the bearing pressing head 2 is driven to move downward by a pressing machine or other driving equipment, and the bearing 13 is pressed and connected to the input shaft 15.

Claims

1. A bearing mounting arrangement for an input shaft, the bearing (13) being an input shaft bearing having an annular snap ring groove (14) provided in a side wall of the bearing (13) and the snap ring groove (14) being offset towards one end of the bearing (13), characterised in that: The bearing mounting device comprises at least an input shaft positioning seat (1) and a bearing pressing head (2); The top of the input shaft positioning seat (1) is provided with an input shaft positioning column (3); The bearing pressing head (2) is sleeve-shaped, and is internally provided with a positioning hole, which is divided into a small-diameter section (4) and a large-diameter section (5) from top to bottom, and a shaft shoulder is formed between the small-diameter section (4) and the large-diameter section (5), the hole diameter of the small-diameter section (4) is smaller than the outer diameter of the bearing (13), the hole diameter of the large-diameter section (5) matches the outer diameter of the bearing (13), and the side wall corresponding to the large-diameter section (5) is provided with an air outlet hole (6) penetrating in and out, a plurality of air inlet holes (7) and a plurality of threaded holes; the threaded holes are all provided with wave bead clamping screws (8) for clamping the bearing (13); the air outlet hole (6) and the air inlet hole (7) are located at the same height, when the bearing (13) is clamped in the large-diameter section (5), if the clamping ring groove (14) is located at an upper position of the bearing (13), the air outlet hole (6) and the air inlet hole (7) correspond to the position of the clamping ring groove (14) of the bearing (13); if the clamping ring groove (14) is located at a lower position of the bearing (13), the air outlet hole (6) and the air inlet hole (7) correspond to the side wall of the bearing (13); the outside of the air outlet hole (6) is connected with a vacuum generator (9) through an air pipe, and the vacuum generator (9) is connected with an external controller.

2. A bearing mounting arrangement for an input shaft as claimed in claim 1, characterised in that: The lower opening of the large-diameter section (5) of the bearing pressing head (2) is a gradually enlarged trumpet-shaped guide opening.

3. A bearing mounting arrangement for an input shaft as claimed in claim 1, characterised in that: The lower part of the large-diameter section (5) of the bearing pressing head (2) is provided with a gap (10) for facilitating dismounting of the bearing (13), when the bearing (13) is clamped in the large-diameter section (5), part of the outer wall of the bearing (13) corresponds to the position of the gap (10).

4. The input shaft bearing mounting arrangement of claim 1, wherein: The wave bead clamping screws (8) are all located at the same height, when the bearing (13) is clamped in the large-diameter section (5), if the clamping ring groove (14) is located at a lower position of the bearing (13), the wave bead clamping screws (8) all correspond to the position of the clamping ring groove (14) of the bearing (13).

5. A bearing mounting arrangement for an input shaft according to any one of claims 1 to 4, characterised in that: The input shaft positioning seat (1) comprises a fixed positioning seat (101) and a movable positioning seat (102), the movable positioning seat (102) is positioned on the top of the fixed positioning seat (101) through a quick-release structure, the input shaft positioning column (3) is located on the top of the movable positioning seat (102), a plurality of movable positioning seats (102) can be arranged, and the diameters of each input shaft positioning column (3) are different.

6. A bearing mounting arrangement for an input shaft as claimed in claim 5, characterised in that: The quick-release structure between the movable positioning seat (102) and the fixed positioning seat (101) is that a limiting shaft (11) is arranged at the center position of the bottom of the movable positioning seat (102), and a plug hole (12) matched with the limiting shaft (11) is arranged at the top of the fixed positioning seat (101).

Images