An adjustable press-fit device and method for coated spindle bearings

Abstract

This invention provides an adjustable coated spindle bearing press-fitting device and method, relating to the technical field of press-fitting devices. The adjustable coated spindle bearing press-fitting device includes a base, a support rod fixedly connected to the upper surface of the base, an impact seat fixedly connected to the upper end of the support rod, and an impact mechanism fixedly connected to the bottom of the impact seat. The impact mechanism includes a connecting frame with a groove inside. A pressure switch is triggered by the pressure of a rubber cover pushing the support rod. Combined with a circuit circuit consisting of a metal strip and contacts, the bearing's horizontal status can be fed back in real time via indicator lights: when both indicator lights are lit and the moving blocks are in the same position, it indicates that the bearing is horizontal and coaxial; when only one light is lit, it indicates that the bearing position needs adjustment. This avoids the problem of bearing tilting during press-fitting, reducing bearing wear and extending its service life during subsequent equipment operation.

Description

Technical Field

[0001] This invention relates to the field of press-fitting equipment technology, and in particular to an adjustable press-fitting device and method for coated spindle bearings. Background Technology

[0002] In textile machinery, the assembly precision of the spindle rod and bearing directly determines the equipment's operational stability, transmission efficiency, and service life. Currently, the mainstream bearing press-fitting method in the industry involves stamping the bearing onto the surface of the spindle rod.

[0003] Existing press-fitting devices mostly rely on manual positioning of the spindle and bearing, lacking an automated coaxial calibration mechanism. If the two axes are misaligned during assembly, the inner ring of the bearing and the surface of the spindle will experience severe friction during press-fitting. This can cause not only scratches on the bearing raceway and wear on the surface of the spindle, but also deformation and cracking of the inner ring of the bearing. Traditional press-fitting devices mostly use a one-time rigid impact method to press the bearing into place. The impact force is fixed and cannot be adjusted according to the material and specifications of the components. For bearings with brittle materials or spindles with small diameters, the concentrated stress generated by the one-time impact can easily lead to the breakage of the bearing cage and the bending deformation of the spindle. Summary of the Invention

[0004] This invention addresses the problems mentioned in the background art by employing automated coaxial calibration, graded impact design, and stress-dispersing protective components.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable coated spindle rod bearing press-fitting device, comprising a base, a support rod fixedly connected to the upper surface of the base, an impact seat fixedly connected to the upper end of the support rod, and an impact mechanism fixedly connected to the bottom of the impact seat;

[0006] The impact mechanism includes a connecting frame with a groove inside. A sliding rod is fixedly connected to both sides of the groove. A slider is slidably connected to the surface of the sliding rod, and an impact head engages inside the slider. A limit spring is wound around the surface of the sliding rod. A square groove is formed on the surface of the connecting frame near the groove. A limit block is slidably connected inside the square groove. A magnetic block is fixedly connected inside the limit block. A push-out spring is fixedly connected to the bottom of the limit block. An adjusting column is slidably connected to the end of the square groove away from the limit block. Connecting springs are fixedly connected to both sides of the connecting frame near the adjusting column. A snap-fit ​​ball is fixedly connected to the top of the connecting spring. A connecting groove is formed on the surface of the adjusting column.

[0007] Preferably, a vertical rod is fixedly connected to the upper surface of the base, a mounting bracket is fixedly connected to the end of the vertical rod away from the base, a support base is fixedly connected to the upper surface of the mounting bracket, a clamping block is slidably connected inside the support base, a frame is fixedly connected to the side of the mounting bracket away from the support base, a horizontal mechanism is provided inside the frame, and an indicator light is fixedly connected to the side wall of the frame.

[0008] Preferably, the horizontal mechanism includes a rotating plate, a rubber cover fixedly connected to the side wall of the rotating plate, return springs fixedly connected to both sides of the inner surface of the rubber cover, a support rod fixedly connected to the center of the inner surface of the rubber cover, a movable groove formed on the side of the rotating plate near the support rod, a pressure switch fixedly connected to the bottom of the movable groove, a sliding groove formed on the surface of the frame, a lead screw rotatably connected inside the sliding groove, a moving block meshing with the surface of the lead screw, a contact fixedly connected to the bottom of the moving block, a metal strip fixedly connected to the bottom of the sliding groove, a limit rod fixedly connected inside the sliding groove, a locking rod rotatably connected to the upper surface of the moving block, a locking groove formed on the surface of the limit rod, a connecting block fixedly connected to the outer surface of the rotating plate near the locking rod, and a locking post slidably connected inside the connecting block.

[0009] Preferably, a pneumatic rod is fixedly connected to the surface of the mounting bracket near the support base, the output shaft of the pneumatic rod passes through the support base and is fixedly connected to the side surface of the clamping block, and a rubber sheet is fixedly connected to the surface of the clamping block away from the support base, and the clamping block is an arc block.

[0010] Preferably, the frame is an arc block, and the center of the arc of the frame is coaxial with the center of the arc of the clamping block, the rotating plate is an arc plate, and the rubber cover is a hollow elastic cover.

[0011] Preferably, the frame has an internal power supply, the metal strip is connected to the power supply, the contact is slidably connected to the surface of the metal strip, and the other end of the contact is connected to a pressure switch via a wire, and the pressure switch is connected to an indicator light via a wire.

[0012] Preferably, the support rod and the movable groove are located on the same axis, and the length of the support rod is greater than the length of the movable groove. The snap-fit ​​rod is inserted inside the connecting block, the snap-fit ​​pin is snapped inside the snap-fit ​​groove, the movable block has a threaded groove inside, the lead screw is inserted inside the threaded groove and meshes with it, the movable block has a round hole on the side away from the threaded groove, and the limiting rod is inserted inside the round hole.

[0013] Preferably, the inner surface of the slider is provided with a threaded groove, and the upper part of the outer surface of the impact head is provided with a thread, and the thread on the outer surface of the impact head engages with the threaded groove on the inner surface of the slider.

[0014] Preferably, the outer surface of the slider is provided with a wedge-shaped groove, the limiting block is a wedge-shaped block, and the limiting block is engaged inside the wedge-shaped groove. There are eight limiting blocks arranged on both sides of the slider, four on each side.

[0015] An adjustable press-fit device and method for coated spindle bearings, the specific method being as follows:

[0016] S1. Place the spindle and spindle rod inside the clamping seat on the upper surface of the base, and adjust the clamping position according to the axis of the impact head so that the spindle, spindle rod and impact head are on the same axis line.

[0017] S2. Then place the bearing at the center of the clamping block and the frame, and start the cylinder to push the clamping block to clamp the bearing on the surface of the frame. At this time, rotate the rotating plate to adjust the rotating plates on both sides to the same position, fit against the surface of the bearing, and limit the rotating plate by the snap-fit ​​rod.

[0018] S3. Then pull the push rod down. At this time, the hydraulic transmission rod inside the impact seat starts to move downward and pushes the connecting frame downward. The sliding impact head inside the connecting frame contacts the upper surface of the bearing and presses down the inner ring of the bearing. At this time, the bearing moves downward along the surface of the spindle and the spindle rod and is engaged with the outer surface of the spindle and the spindle rod.

[0019] S4. Finally, open the rotating plate and close the pneumatic cylinder to separate the clamping block from the bearing, and remove the spindle and spindle rod with the bearing in place.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0021] 1. In this invention, the pressure switch is triggered by the rubber cover being squeezed and pushing the support rod. Combined with the circuit circuit composed of metal strips and contacts, the bearing level status can be fed back in real time through indicator lights: when both indicator lights are lit and the moving blocks are in the same position, it indicates that the bearing is level and coaxial. When only one light is lit, it indicates that the bearing position needs to be adjusted. This achieves the effect of avoiding the problem of bearing tilting during installation, reducing the bearing wear rate and extending the service life during subsequent equipment operation.

[0022] 2. In this invention, in the impact mechanism, the limiting blocks on both sides of the slider are engaged with the slider through wedge grooves. During press-fitting, the impact head first passes through four low-force impact stages to complete the initial sleeve of the bearing, disperse the concentrated stress, and avoid bearing cracking and spindle bending caused by a one-time impact. After the initial sleeve, the positioning impact is used to achieve complete press-fitting, thus achieving the effect of ensuring press-fitting accuracy and protecting the integrity of the components. Attached Figure Description

[0023] Figure 1 A frontal perspective view of the overall structure of the adjustable coated spindle rod bearing press-fitting device proposed in this invention;

[0024] Figure 2 A front three-dimensional structural diagram of the frame in an adjustable coated spindle rod bearing press-fitting device is provided for this invention.

[0025] Figure 3 A frontal perspective view of the impact mechanism in an adjustable coated spindle rod bearing press-fitting device proposed in this invention.

[0026] Figure 4 A cross-sectional planar structural diagram of the support seat in an adjustable coated spindle rod bearing press-fitting device proposed in this invention;

[0027] Figure 5 A cross-sectional planar structural diagram of the frame in an adjustable coated spindle bearing press-fitting device proposed in this invention;

[0028] Figure 6 This invention proposes an adjustable coated spindle bearing press-fitting device. Figure 5 A magnified structural diagram at point A;

[0029] Figure 7 This invention proposes an adjustable coated spindle bearing press-fitting device. Figure 5 A magnified structural diagram at point B;

[0030] Figure 8 A front sectional plan view of the impact seat and impact mechanism in an adjustable coated spindle bearing press-fitting device proposed in this invention.

[0031] Figure 9 A front sectional plan view of the impact mechanism in an adjustable coated spindle bearing press-fitting device proposed in this invention.

[0032] Figure 10 This invention proposes an adjustable coated spindle bearing press-fitting device. Figure 9 A magnified structural diagram at point C.

[0033] Legend: 1. Base; 2. Vertical rod; 3. Mounting bracket; 4. Support base; 5. Support rod; 6. Impact seat; 7. Impact mechanism; 701. Connecting frame; 702. Groove; 703. Slide rod; 704. Slider; 705. Impact head; 706. Limiting spring; 707. Square groove; 708. Limiting block; 709. Magnetic block; 710. Ejection spring; 711. Adjusting column; 712. Connecting spring; 713. Snap-fit ​​ball; 714. Connecting groove; 8. Clamping block; 9. Frame; 10. Horizontal mechanism; 1001. Rotating plate; 1002. Rubber cover; 1003. Return spring; 1004. Support rod; 1005. Movable groove; 1006. Pressure switch; 1007. Slide groove; 1008. Lead screw; 1009. Moving block; 1010. Contact; 1011. Metal strip; 1012. Limit rod; 1013. Snap-fit ​​rod; 1014. Snap-fit ​​groove; 1015. Connecting block; 1016. Snap-fit ​​post; 11. Indicator light. Detailed Implementation

[0034] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0035] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0036] like Figure 1 As shown, an adjustable coated spindle rod bearing press-fitting device includes a base 1, a support rod 5 fixedly connected to the upper surface of the base 1, an impact seat 6 fixedly connected to the upper end of the support rod 5, and a clamping device fixedly connected to the bottom of the base 1. The clamping device is a structure in which a cylinder pushes a clamping block on one side to move towards a clamping block on the other side, and a clamping groove is provided at the center of the clamping block so that the spindle or rod inside the clamping groove can be clamped inside it. The axis of the clamping groove and the impact seat 6 are located on the same axis line, so that the clamped spindle or rod and the impact seat 6 can be located on the same axis line.

[0037] like Figure 3 and Figure 8As shown, an impact mechanism 7 is fixedly connected to the bottom of the impact seat 6. The impact mechanism 7 includes a connecting frame 701. A groove 702 is formed inside the connecting frame 701. Slide rods 703 are fixedly connected to both sides inside the groove 702. A slider 704 is slidably connected to the surface of the slide rods 703. An impact head 705 is engaged inside the slider 704. A threaded groove is formed on the inner surface of the slider 704. A thread is formed on the upper part of the outer surface of the impact head 705. The thread on the outer surface of the impact head 705 engages with the threaded groove on the inner surface of the slider 704. The upper end of the connecting frame 701 is connected via... The impact head 705 is fixedly connected to the bottom of the impact seat 6 by bolts, and the groove 702 is a circular groove. The impact head 705 is cylindrical, and a through hole is opened at the center of the impact head 705. The impact head 705 and the impact seat 6 are located on the same axis, so that the impact head 705 and the spindle rod are on the same axis. The impact head 705 can be replaced and adjusted according to the diameter of the spindle and the spindle rod, so that the diameter of the through hole inside the impact head 705 is always 0.1 mm larger than the diameter of the spindle and the spindle rod, so that the impact head 705 will not collide with the spindle and the spindle rod during the downward movement.

[0038] like Figure 9 The slide bar 703 shown has a limiting spring 706 wound around its surface. The two ends of the limiting spring 706 are fixedly connected to the upper surface of the slider 704 and the top of the groove 702, respectively. This allows the impact head 705 to provide a downward thrust to the slider 704 as it moves upward. This causes the impact head 705 to bounce back quickly after moving upward during the impact, thus adjusting the flatness of the bearing and preventing the bearing from tilting or warping after the impact.

[0039] like Figure 10 As shown, the connecting frame 701 has a square groove 707 on its surface near the groove 702. A limiting block 708 is slidably connected inside the square groove 707. A wedge-shaped groove is formed on the outer surface of the slider 704. The limiting block 708 is a wedge-shaped block and is engaged inside the wedge-shaped groove. There are eight limiting blocks 708 arranged on both sides of the slider 704, four on each side. By limiting the slider 704 with the limiting blocks 708, the impact head 705 can pass through four smaller impact stages when impacting downwards, initially fitting the bearing onto the surface of the spindle rod, avoiding damage to the bearing caused by a single impact. After the initial fitting, a positioning impact is performed to achieve complete fitting, disperse some stress, reduce concentrated stress, improve the flatness of the bearing installation, and prevent stress concentration and damage to the bearing during a single impact.

[0040] like Figure 10As shown, a magnetic block 709 is fixedly connected inside the limiting block 708, and an ejector spring 710 is fixedly connected to the bottom of the limiting block 708. An adjusting column 711 is slidably connected to one end of the square groove 707 away from the limiting block 708. Connecting springs 712 are fixedly connected to both sides of the connecting frame 701 near the adjusting column 711. A snap-fit ​​ball 713 is fixedly connected to the top of the connecting spring 712. A connecting groove 714 is opened on the surface of the adjusting column 711. Square holes are opened on both sides of the square groove 707. The connecting spring 712 is placed inside the square hole, and the snap-fit ​​ball 713 is snapped into the inside of the connecting groove 714 to achieve the positioning of the adjusting column 711.

[0041] like Figure 10 As shown, when a magnetic block 709 is fixedly connected inside the adjusting column 711, the magnetic block 709 inside the adjusting column 711 and the magnetic block 709 inside the limiting block 708 have the same magnetic poles at their proximal ends. This allows the adjusting column 711 to provide a greater thrust to the limiting block 708 when it moves towards the limiting block 708. At the same time, the ejector spring 710 is compressed, which also provides greater pressure to the limiting block 708. At this time, the friction between the slider 704 and the limiting block 708 increases, and the impact head 705 needs a greater impact force to overcome the longitudinal friction between the slider 704 and the limiting block 708 and drive the slider 704 to move upward. This allows for adjustment of the initial fitting force required during fitting, based on the different fitting materials and diameters. The friction between different fitting materials varies greatly, ensuring that the bearing can be fitted onto the surface of the spindle rod during the initial fitting press-fit.

[0042] like Figures 1-2 A vertical rod 2 is fixedly connected to the upper surface of the base 1 shown. A mounting bracket 3 is fixedly connected to the end of the vertical rod 2 away from the base 1. A support seat 4 is fixedly connected to the upper surface of the mounting bracket 3. A clamping block 8 is slidably connected inside the support seat 4. A pneumatic rod is fixedly connected to the surface of the mounting bracket 3 near the support seat 4. The output shaft of the pneumatic rod passes through the support seat 4 and is fixedly connected to the side surface of the clamping block 8. A rubber sheet is fixedly connected to the surface of the clamping block 8 away from the support seat 4. The clamping block 8 is an arc block. A circular hole is opened at the center of the mounting bracket 3. The circular hole and the impact seat 6 are located on the same axis. The clamping block 8 and the circular hole are located on the same axis. A frame 9 is fixedly connected to the side of the mounting bracket 3 away from the support seat 4. The frame 9 is an arc block. The arc center of the frame 9 is coaxial with the arc center of the clamping block 8, so that the bearing to be clamped, the impact seat 6, and the spindle rod are all on the same axis.

[0043] like Figure 4 As shown, the internal structure of the frame 9 is equipped with a horizontal mechanism 10, and an indicator light 11 is fixedly connected to the side wall of the frame 9.

[0044] like Figures 5-6The horizontal mechanism 10 shown includes a rotating plate 1001. A rubber cover 1002 is fixedly connected to the side wall of the rotating plate 1001. The rotating plate 1001 is an arc plate, and the rubber cover 1002 is a hollow elastic cover. When the rotating plate 1001 is attached to the surface of the rotating shaft, it can press the rubber cover 1002. At this time, the rubber cover 1002 can bend and deform inward.

[0045] like Figure 6 As shown, return springs 1003 are fixedly connected to both sides of the inner surface of the rubber cover 1002, and a support rod 1004 is fixedly connected to the center of the inner surface of the rubber cover 1002. The support rod 1004 and the movable groove 1005 are located on the same axis, and the length of the support rod 1004 is greater than the length of the movable groove 1005. When the rubber cover 1002 bends and deforms inward, it can overcome the return springs 1003 and push the support rod 1004 to move inward into the movable groove 1005.

[0046] like Figures 6-7 As shown, a movable groove 1005 is provided on the side of the rotating plate 1001 near the support rod 1004. A pressure switch 1006 is fixedly connected to the bottom of the movable groove 1005. A sliding groove 1007 is provided on the surface of the frame 9. A lead screw 1008 is rotatably connected inside the sliding groove 1007. A moving block 1009 is engaged on the surface of the lead screw 1008. A contact 1010 is fixedly connected to the bottom of the moving block 1009. A metal strip 1011 is fixedly connected to the bottom of the sliding groove 1007. A power supply is provided inside the frame 9. Metal strip 1011 is connected to the power supply. Contact 1010 is slidably connected to the surface of metal strip 1011. The other end of contact 1010 is connected to pressure switch 1006 via wire. Pressure switch 1006 is connected to indicator light 11 via wire. When support rod 1004 presses pressure switch 1006, indicator light 11 starts to light up, indicating that the pressing on this side is complete. When the moving blocks 1009 on both sides are in the same position and the indicator lights 11 on both sides are lit, it indicates that the bearing is in the center position.

[0047] like Figures 7-8 As shown, a limiting rod 1012 is fixedly connected inside the slide groove 1007. A threaded groove is opened inside the moving block 1009. The lead screw 1008 is inserted into the threaded groove and meshes with it. A round hole is opened on the side of the moving block 1009 away from the threaded groove. The limiting rod 1012 is inserted into the round hole. Rotating the lead screw 1008 causes the moving block 1009 to slide along the surface of the limiting rod 1012.

[0048] like Figure 7As shown, a locking rod 1013 is rotatably connected to the upper surface of the moving block 1009, and a locking groove 1014 is formed on the surface of the limiting rod 1012. A connecting block 1015 is fixedly connected to the outer surface of the rotating plate 1001 near the locking rod 1013. A locking post 1016 is slidably connected inside the connecting block 1015. The locking rod 1013 is inserted inside the connecting block 1015, and the locking post 1016 is locked inside the locking groove 1014. The moving block 1009 slides along the surface of the limiting rod 1012 under the drive of the lead screw 1008, and at the same time drives the locking rod 1013 to slide inside the connecting block 1015. At this time, the rotating plate... 1001 is attached to the surface of the bearing. When the locking rod 1013 moves to the limit position, it is locked inside the connecting block 1015 by the locking post 1016. The position of the moving block 1009 is observed at this time. When the moving blocks 1009 on both sides are in the same position and the indicator lights 11 on both sides are lit, the surface bearing and the impact seat 6 are on the same axis. When one side is lit and the other side is not lit, the surface bearing and the impact seat 6 are not on the same axis. The position of the bearing needs to be readjusted to realize that the bearing can automatically identify whether the bearing is coaxial and avoid damage caused by the spindle rod and bearing colliding with each other due to different axes during the pressing process.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An adjustable coated spindle bearing press-fitting device, characterized in that: Includes a base (1), a vertical rod (2) is fixedly connected to the upper surface of the base (1), a mounting bracket (3) is fixedly connected to the end of the vertical rod (2) away from the base (1), a support seat (4) is fixedly connected to the upper surface of the mounting bracket (3), a support rod (5) is fixedly connected to the upper surface of the base (1), an impact seat (6) is fixedly connected to the upper end of the support rod (5), an impact mechanism (7) is fixedly connected to the bottom of the impact seat (6), a frame (9) is fixedly connected to the side of the mounting bracket (3) away from the support seat (4), and a horizontal mechanism (10) is provided inside the frame (9). The impact mechanism (7) includes a connecting frame (701), the inside of which is provided with a groove (702). A sliding rod (703) is fixedly connected to both sides inside the groove (702). A slider (704) is slidably connected to the surface of the sliding rod (703). An impact head (705) engages inside the slider (704). A wedge-shaped groove is provided on the outer surface of the slider (704), and a threaded groove is provided on the inner surface of the slider (704). A thread is provided on the upper part of the outer surface of the impact head (705). The thread on the outer surface of the impact head (705) engages with the threaded groove on the inner surface of the slider (704). A limit spring (706) is wound around the surface of the sliding rod (703). A square groove (707) is provided on the surface of the connecting frame (701) near the groove (702). The square groove (707) is internally connected to a limiting block (708), which is a wedge-shaped block. The limiting block (708) is engaged inside the wedge-shaped groove, and there are eight limiting blocks (708), which are arranged on both sides of the slider (704), four on each side. A magnetic block (709) is fixedly connected inside the limiting block (708), and an ejector spring (710) is fixedly connected to the bottom of the limiting block (708). An adjusting column (711) is slidably connected to one end of the square groove (707) away from the limiting block (708). Connecting springs (712) are fixedly connected to both sides of the connecting frame (701) near the adjusting column (711). A snap-fit ​​ball (713) is fixedly connected to the top of the connecting spring (712). A connecting groove (714) is opened on the surface of the adjusting column (711). The horizontal mechanism (10) includes a rotating plate (1001), a rubber cover (1002) fixedly connected to the side wall of the rotating plate (1001), return springs (1003) fixedly connected to both sides of the inner surface of the rubber cover (1002), a support rod (1004) fixedly connected to the center of the inner surface of the rubber cover (1002), a movable groove (1005) opened on the side of the rotating plate (1001) near the support rod (1004), a pressure switch (1006) fixedly connected to the bottom of the movable groove (1005), a sliding groove (1007) opened on the surface of the frame (9), and a lead screw (1008) rotatably connected inside the sliding groove (1007). A movable block (1009) is engaged with the surface of the lead screw (1008). A contact (1010) is fixedly connected to the bottom of the movable block (1009). A metal strip (1011) is fixedly connected to the bottom of the slide groove (1007). A limit rod (1012) is fixedly connected inside the slide groove (1007). A snap-fit ​​rod (1013) is rotatably connected to the upper surface of the movable block (1009). A snap-fit ​​groove (1014) is opened on the surface of the limit rod (1012). A connecting block (1015) is fixedly connected to the outer surface of the rotating plate (1001) near the snap-fit ​​rod (1013). A snap-fit ​​post (1016) is slidably connected inside the connecting block (1015).

2. The adjustable coated spindle bearing press-fitting device according to claim 1, characterized in that: The support base (4) has a clamping block (8) slidably connected inside, and the side wall of the frame (9) has an indicator light (11) fixedly connected.

3. The adjustable coated spindle bearing press-fitting device according to claim 2, characterized in that: A pneumatic rod is fixedly connected to the surface of the mounting bracket (3) near the support base (4). The output shaft of the pneumatic rod passes through the support base (4) and is fixedly connected to the side surface of the clamping block (8). A rubber sheet is fixedly connected to the surface of the clamping block (8) away from the support base (4), and the clamping block (8) is an arc block.

4. The adjustable coated spindle bearing press-fitting device according to claim 3, characterized in that: The frame (9) is an arc block, and the arc center of the frame (9) is coaxial with the arc center of the clamping block (8). The rotating plate (1001) is an arc plate, and the rubber cover (1002) is a hollow elastic cover.

5. The adjustable coated spindle bearing press-fitting device according to claim 4, characterized in that: The frame (9) is equipped with a power supply inside. The metal strip (1011) is connected to the power supply. The contact (1010) is slidably connected to the surface of the metal strip (1011). The other end of the contact (1010) is connected to the pressure switch (1006) through a wire. The pressure switch (1006) is connected to the indicator light (11) through a wire.

6. The adjustable coated spindle bearing press-fitting device according to claim 5, characterized in that: The support rod (1004) and the movable groove (1005) are located on the same axis, and the length of the support rod (1004) is greater than the length of the movable groove (1005). The snap-fit ​​rod (1013) is inserted inside the connecting block (1015). The snap-fit ​​post (1016) is snapped inside the snap-fit ​​groove (1014). The movable block (1009) has a threaded groove inside. The lead screw (1008) is inserted inside the threaded groove and meshes with it. The movable block (1009) has a round hole on the side away from the threaded groove. The limiting rod (1012) is inserted inside the round hole.

7. A pressing method for an adjustable coated spindle rod bearing pressing device, characterized in that, The adjustable coated spindle bearing press-fitting device according to any one of claims 1-6 includes the following steps: S1. Place the spindle and spindle rod inside the clamping seat on the upper surface of the base (1), and adjust the clamping position according to the axis of the impact head (705) so that the spindle, spindle rod and impact head (705) are on the same axis line. S2. Then place the bearing at the center of the clamping block (8) and the frame (9), and start the cylinder to push the clamping block (8) to clamp the bearing on the surface of the frame (9). At this time, rotate the rotating plate (1001) to adjust the rotating plates (1001) on both sides to the same position, fit against the surface of the bearing, and limit the rotating plate (1001) by the snap rod (1013). S3. Then pull the push rod down. At this time, the hydraulic transmission rod inside the impact seat (6) starts to move downward and pushes the connecting frame (701) downward. The impact head (705) sliding inside the connecting frame (701) contacts the upper surface of the bearing and presses down the inner ring of the bearing. At this time, the bearing moves downward along the surface of the spindle and the spindle rod and is locked onto the outer surface of the spindle and the spindle rod. S4. Finally, open the rotating plate (1001) and close the pneumatic cylinder to separate the clamping block (8) from the bearing and take out the spindle and spindle rod with the bearing in place.

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