A thin-walled bearing outer ring polishing device and polishing process

Abstract

The present invention provides a polishing device and a polishing process for the outer ring of a thin-wall bearing, which relates to the technical field of bearing polishing. The polishing device includes a rotating cylinder and a polishing assembly. A plurality of clamping members are evenly distributed at intervals on the circumferential side of the rotating cylinder; the clamping member includes a base, two flexible supporting plates, a bladder and a pressing rod; a moving tube is slidably installed in the rotating cylinder, a sliding rod is slidably installed in the moving tube, an expansion member one is installed on the moving tube, an expansion member two is installed on the sliding rod, a blade passing through the rotating cylinder is installed on the base, and an inclined surface is provided at the end of the blade. The flexible supporting plate of the present invention can increase the contact area with the outer ring, which is beneficial to reducing the deformation of the outer ring; the rotation of the blade generates air flow, which is beneficial to reducing the heat of the outer ring during polishing; the clamping members clamp the outer ring alternately, which can change the clamping position of the outer ring, is beneficial to the uniform heat dissipation of the outer ring, and thus is beneficial to reducing the deformation of the outer ring.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing polishing, and in particular to a thin-walled bearing outer ring polishing device and a polishing process. Background Art

[0002] A bearing is a component in mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Among them, a thin-walled bearing is a bearing that realizes an extremely thin bearing cross-section and a miniaturized and lightweight design. Thin-walled bearings usually include an outer ring, an inner ring, a dust cover, and a number of rollers. The outer ring, as part of the thin-walled bearing, has a very thin wall thickness. The outer ring of the thin-walled bearing is machined using a turning process. After the outer ring of the bearing is machined, there will be some impurities such as burrs and iron filings on its surface. Therefore, the outer ring of the bearing needs to be polished. In the prior art, grinding and polishing equipment is generally used to polish the outer ring of the bearing.

[0003] For example, the patent document with publication number CN113524004B discloses a surface polishing device for processing bearing outer rings. The polishing device includes a fixing mechanism and a grinding assembly. The fixing mechanism includes a mounting bracket, a positioning block, a first electric push rod and a movable sleeve. The outer ring of the bearing is sequentially sleeved on the outside of the three mounting brackets and movably sleeved on the groove of the positioning block in turn. The first electric push rod pushes the movable sleeve to move. With the cooperation of the mounting bracket, the first spring and the second spring, multiple bearing outer rings are clamped at the same time, and then the grinding assembly grinds and polishes the bearing outer ring.

[0004] When the above-mentioned polishing device polishes the outer ring of a thin-walled bearing, due to the small wall thickness of the outer ring, the inside of the outer ring is fixed only by three positioning blocks on three mounting brackets. During the polishing process of the outer ring, the grinding assembly will apply radial force to the outer ring, causing the outer ring to be easily deformed, affecting subsequent processing and production links. Summary of the Invention

[0005] In view of this, the present invention provides a thin-walled bearing outer ring polishing device and polishing process to solve the technical problem that the thin-walled bearing outer ring is easily deformed during the polishing process.

[0006] To solve the above technical problems, the present invention provides, on the one hand, a thin-walled bearing outer ring polishing device, comprising a rotating drum and a polishing assembly disposed on a workbench, the rotating drum being driven by a driving member, and a plurality of clamping members being evenly spaced around the circumference of the rotating drum; the clamping members comprising a base, two flexible support plates mounted on the base, a capsule connected between the two support plates, and a pressure rod slidably disposed on the base and located above the capsule; the two support plates are both hollow structures, and an air cavity is formed between the two support plates, the capsule, and the base;

[0007] A moving pipe is slidably arranged inside the rotary drum, and a sliding rod is slidably arranged inside the moving pipe. The moving pipe and the sliding rod are respectively driven by a linear drive; an expansion member I is installed on the moving pipe, and an expansion member II is installed on the sliding rod. Both the expansion member I and the expansion member II are frustum-shaped. A blade passing through the rotary drum is installed on the base, and an inclined surface capable of slidingly cooperating with the side surface of the expansion member I or the expansion member II is provided at the end of the blade.

[0008] By adopting the above technical solution, when the clamping member clamps the outer ring, as the moving pipe and the sliding rod move alternately, the expansion member I and the expansion member II alternately push the blade to move radially away from the axis of the outer ring. The blade drives the base and the pressure rod to move in sequence. When the pressure rod contacts the inner wall of the outer ring, as the blade drives the base to continue to move radially away from the axis of the outer ring, the pressure rod squeezes the bladder, increasing the air pressure in the air chamber and deforming the flexible support plate. The end surface of the support plate closely adheres to the inner wall of the outer ring, increasing the contact area between the support plate and the outer ring, which is beneficial to reducing the deformation of the outer ring during polishing. At the same time, during the polishing process, the driving member drives the rotary drum to rotate, the rotary drum drives the blade to rotate, and the rotation of the blade generates an air flow, which is beneficial to reducing the heat generated by the friction between the outer ring and the polishing assembly during polishing, thereby being beneficial to reducing the deformation of the outer ring; the clamping member clamps the outer ring alternately, which can change the clamping position of the outer ring, is beneficial to the uniform heat dissipation of the outer ring, thereby being beneficial to reducing the deformation of the outer ring. At the same time, it reduces the safety hazard brought to the operator due to excessive heat of the outer ring after polishing.

[0009] Preferably, support members are installed at both ends of the base, elastic rings capable of sleeving on the support members are provided at both ends of the rotary drum, and a return spring is connected between the pressure rod and the support member.

[0010] By adopting the above technical solution, when the moving pipe or the sliding rod moves in the reverse direction, the expansion member I or the expansion member II loses the acting force on the blade, the elastic ring resets the base, and the return spring resets the pressure rod.

[0011] Preferably, a rotating shaft is rotatably arranged on the workbench, a mounting plate is fixedly connected to the rotating shaft, the rotary drum is rotatably connected to the mounting plate, a baffle capable of limiting the outer ring sleeved on the rotary drum is installed on the mounting plate, and a rotary cylinder capable of driving the rotating shaft to rotate is provided at one end of the rotating shaft.

[0012] By adopting the above technical solution, after sleeving a plurality of outer rings on the rotary drum, the rotary cylinder drives the rotating shaft to rotate, the rotating shaft drives the mounting plate and the rotary drum to tilt upward. Under the limiting action of the baffle, the outer rings are arranged in an orderly manner on the rotary drum, which is beneficial to reducing the inclination of the outer rings on the rotary drum, thereby being beneficial to improving the clamping stability of the outer rings.

[0013] Preferably, a blanking pipe is provided on one side of the rotating cylinder. A plurality of blocks for limiting the outer ring in the blanking pipe are installed at the end of the blanking pipe, and the blocks are flexible. A sliding frame is slidably provided on the workbench, and the rotating shaft is rotatably installed on the sliding frame. The movement of the sliding frame is driven by a first lead screw adjustment mechanism provided on the workbench.

[0014] By adopting the above technical solution, the outer rings to be polished are conveyed into the blanking pipe, the blocks limit the outer rings, the first lead screw adjustment mechanism drives the sliding frame to move, so that the rotating cylinder extends into the blanking pipe, the outer rings are sleeved on the rotating cylinder. After the clamping members clamp and position the outer rings, the first lead screw adjustment mechanism drives the sliding frame to move in the reverse direction, so that the rotating cylinder is separated from the blanking pipe, which is beneficial to realizing the rapid feeding of multiple outer rings, realizing the simultaneous polishing of multiple outer rings, and is beneficial to improving the polishing efficiency.

[0015] Preferably, both the sliding frame and the blanking pipe are installed on the moving frame. The polishing assembly is arranged on one side of the moving frame. A second lead screw adjustment mechanism capable of driving the moving frame to move is provided under the workbench, and the moving directions of the moving frame and the sliding frame are perpendicular.

[0016] By adopting the above technical solution, the second lead screw adjustment mechanism drives the moving frame to move, the moving frame drives the sliding frame and the blanking pipe to move, and further drives the rotating cylinder on the sliding frame to move, which is convenient for adjusting the distance between the rotating cylinder and the polishing assembly, and is beneficial for the polishing assembly to polish the outer rings on the rotating cylinder.

[0017] Preferably, a chute is formed on the moving pipe, so that the second expansion member located between the two first expansion members penetrates through the chute and is connected to the sliding rod.

[0018] By adopting the above technical solution, the second expansion member located between the two first expansion members penetrates through the chute and is connected to the sliding rod, which is convenient for moving along with the sliding rod, realizing the relative movement between the moving pipe and the sliding rod, and thus realizing the alternating clamping of the outer rings by the clamping members.

[0019] Preferably, a blanking port is provided on the workbench, and the blanking port is located on one side of the sliding frame. The rotary cylinder drives the rotating cylinder to tilt downward so that the outer rings on the rotating cylinder fall from the blanking port.

[0020] By adopting the above technical solution, after the polishing assembly polishes the outer rings, the first lead screw adjustment mechanism drives the rotating cylinder to move above the blanking port, the rotary cylinder drives the rotating cylinder to tilt downward, and the clamping members release the clamping of the outer rings, which is convenient for realizing the blanking of the outer rings.

[0021] On the other hand, the present invention provides a polishing process for the outer ring of a thin-walled bearing, using the above-mentioned polishing device for the outer ring of a thin-walled bearing, which includes the following steps:

[0022] Step 1: The linear driver drives the moving tube and the sliding rod to move alternately, so that the clamping members alternately clamp the outer ring sleeved on the rotating cylinder. When clamping, the first expanding member or the second expanding member pushes the blade to move, and the blade drives the base to move. When the pressing rod contacts the inner wall of the outer ring, the pressing rod squeezes the bladder, causing the supporting plate to deform and support the outer ring.

[0023] Step 2: The driving member drives the rotating cylinder to rotate, and drives the outer ring to rotate. The polishing assembly polishes the outer ring. The rotating cylinder drives the blade to rotate, and the airflow generated by the blade can drive the heat generated during the polishing of the outer ring.

[0024] By adopting the above technical solutions, the flexible supporting plate deforms, increasing the contact area between the supporting plate and the outer ring, which is beneficial to reducing the deformation of the outer ring during polishing. At the same time, the rotating cylinder drives the blade to rotate, and the airflow generated by the blade rotation is beneficial to reducing the heat generated by the friction between the outer ring and the polishing assembly during polishing, thereby being beneficial to reducing the deformation of the outer ring. The clamping members alternately clamp the outer ring, which can change the clamping position of the outer ring, is beneficial to the uniform heat dissipation of the outer ring, thereby being beneficial to reducing the deformation of the outer ring. At the same time, it can also reduce the safety hazard brought to the operator due to excessive heat after the outer ring is polished.

[0025] The beneficial effects of the above technical solutions of the present invention are as follows:

[0026] 1. The flexible supporting plate of the present invention can deform, increasing the contact area between the supporting plate and the outer ring, which is beneficial to reducing the deformation of the outer ring during polishing. At the same time, the rotating cylinder drives the blade to rotate, and the airflow generated by the blade rotation is beneficial to reducing the heat generated by the friction between the outer ring and the polishing assembly during polishing, thereby being beneficial to reducing the deformation of the outer ring. The clamping members alternately clamp the outer ring, which can change the clamping position of the outer ring, is beneficial to the uniform heat dissipation of the outer ring, thereby being beneficial to reducing the deformation of the outer ring. At the same time, it can also reduce the safety hazard brought to the operator due to excessive heat after the outer ring is polished.

[0027] 2. The rotating cylinder of the present invention can drive the rotating cylinder to tilt upward and downward. When the rotating cylinder tilts upward, it is beneficial to the orderly arrangement of the outer rings on the rotating cylinder, reducing the inclination of the outer rings on the rotating cylinder, thereby being beneficial to improving the clamping stability of the outer rings. When the rotating cylinder tilts downward, it is beneficial to realize the blanking of the polished outer rings.

[0028] 3. The present invention is provided with a blanking pipe, and the rotating cylinder can extend into the blanking pipe. The outer rings in the blanking pipe are sleeved on the rotating cylinder, which is beneficial to realizing the rapid feeding of multiple outer rings, realizing the simultaneous polishing of multiple outer rings, and being beneficial to improving the polishing efficiency. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of the thin-walled bearing outer ring polishing device of the present invention;

[0030] Figure 2 isFigure 1 Enlarged view of point A in the middle;

[0031] Figure 3 for Figure 1 Enlarged view of point B in the middle;

[0032] Figure 4 is a side view of the workbench of the present invention;

[0033] Figure 5 It is a partial schematic diagram of the rotating drum and the movable frame of the present invention;

[0034] Figure 6 is an axial cross-sectional view of the rotary drum of the present invention;

[0035] Figure 7 is a radial cross-sectional view of the drum of the present invention;

[0036] Figure 8 It is a partial cross-sectional view of the rotating drum of the present invention.

[0037] In the figure: 1. Workbench; 11. Sliding frame; 111. Rotating shaft; 112. Mounting plate; 113. Baffle; 114. Rotating cylinder; 12. First screw adjustment mechanism; 121. First screw; 122. First screw slider; 123. First screw motor; 13. Dropping pipe; 131. Stopper; 14. Moving frame; 15. Second screw adjustment mechanism; 151. Second screw; 152. Second screw slider; 16. Dropping port; 2. Rotating Cylinder; 21. Moving tube; 211. Slide groove; 22. Slide rod; 23. Linear drive; 24. Expander 1; 25. Expander 2; 3. Clamping member; 31. Base; 32. Support plate; 33. Capsule; 34. Pressure rod; 35. Air cavity; 36. Blade; 37. Support member; 38. Elastic ring; 39. Return spring; 4. Polishing assembly; 41. Polishing wheel; 42. Polishing motor; 5. Driving member; 51. Driving motor; 52. Gear. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figures 1 - 8 , clearly and completely describing the technical solutions of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments derived by ordinary technicians in this field fall within the scope of protection of the present invention.

[0039] Example

[0040] This embodiment provides a thin-walled bearing outer ring polishing device, such as Figure 1 As shown, it includes a workbench 1, a rotating drum 2 and a polishing assembly 4.

[0041] As Figure 1 shown, a polishing assembly 4 is arranged on a workbench 1. The polishing assembly 4 includes a polishing wheel 41 for polishing the outer ring and a polishing motor 42 for driving the polishing wheel 41 to rotate.

[0042] As Figure 1 and Figure 4 shown, a moving frame 14 is slidably arranged on the workbench 1. A second lead screw adjusting mechanism 15 is arranged below the workbench 1. The second lead screw adjusting mechanism 15 can drive the moving frame 14 to move towards or away from the side of the polishing wheel 41. The second lead screw adjusting mechanism 15 includes a second lead screw 151 rotatably installed below the workbench 1 and a second lead screw slider 152 slidably arranged on the second lead screw 151. The second lead screw 151 is driven by a second lead screw motor (not shown in the figure). The second lead screw slider 152 is fixedly connected to the moving frame 14.

[0043] As Figure 1 and Figure 2 shown, a sliding frame 11 and a first lead screw adjusting mechanism 12 are arranged on the moving frame 14. The first lead screw adjusting mechanism 12 drives the sliding frame 11 to move. The first lead screw adjusting mechanism 12 includes a first lead screw 121 rotatably installed on the moving frame 14 and a first lead screw slider 122 slidably arranged on the first lead screw 121. The first lead screw 121 is driven by a first lead screw motor 123. The first lead screw slider 122 is fixedly connected to the sliding frame 11. The lower end surface of the first lead screw slider 122 is slidably connected to the moving frame 14. The axial direction of the first lead screw 121 is perpendicular to the axial direction of the second lead screw 151, so that the moving direction of the sliding frame 11 is perpendicular to the moving direction of the moving frame 14.

[0044] As Figure 2 and Figure 5 shown, a rotating shaft 111 is rotatably connected to the sliding frame 11. The axial direction of the rotating shaft 111 is perpendicular to the axial direction of the first lead screw 121. A rotating cylinder 114 is arranged on the sliding frame 11. The rotating cylinder 114 is located at one end of the rotating shaft 111 and can drive the rotating shaft 111 to rotate.

[0045] As Figure 2 and Figure 5 shown, a mounting plate 112 is fixedly connected to the rotating shaft 111. A rotating cylinder 2 is rotatably connected to the mounting plate 112. The axial direction of the rotating cylinder 2 is perpendicular to the axial direction of the rotating shaft 111. The rotating cylinder 2 is driven by a driving member 5. A sleeve (not shown in the figure) is installed at the end of the rotating cylinder 2. The driving member 5 includes a driving motor 51 installed on the mounting plate 112 and two meshing gears 52 installed on the output shaft of the driving motor 51 and the sleeve.

[0046] As Figure 6As shown, six clamping members 3 are evenly distributed on the circumferential side of the rotary drum 2, and the six clamping members 3 are alternately distributed in two groups. The clamping member 3 includes a base 31, a support plate 32, a bladder 33, and a pressure rod 34.

[0047] Among them, as Figure 6 shown, the base 31 is U-shaped. Two support plates 32 are provided, and both are flexible hollow structures. The two support plates 32 are located on both sides of the base 31. The two support plates 32 face each other and each has an upper plate surface and a lower plate surface. An opening is left on one side of the upper plate surface and the lower plate surface. The openings of the two upper plate surfaces are connected to the bladder 33, and the openings of the two lower plate surfaces are connected to the base 31, so as to form an air cavity 35 between the two support plates 32, the bladder 33 and the base 31.

[0048] As Figure 6 and Figure 8 shown, the pressure rod 34 is located above the bladder 33. Left and right support members 37 are installed at both ends of the base 31. The support member 37 is rod-shaped and provided with a hook (not marked in the figure). A return spring 39 is connected between the support member 37 and the pressure rod 34. Elastic rings 38 are provided at both ends of the rotary drum 2, and the elastic rings 38 are sleeved on the hooks of the support members 37.

[0049] As Figure 5 and Figure 7 shown, a moving tube 21 is slidably installed in the rotary drum 2, and a sliding rod 22 is slidably installed in the moving tube 21. The axes of the sliding rod 22, the moving tube 21 and the rotary drum 2 are collinear. Two linear drivers 23 are installed on the mounting plate 112, and the two linear drivers 23 respectively drive the moving tube 21 and the sliding rod 22 to move. The linear driver 23 is a cylinder or a hydraulic cylinder.

[0050] As Figure 6 and Figure 7 shown, an expander one 24 is installed on the moving tube 21, and an expander two 25 is installed on the sliding rod 22. Both the expander one 24 and the expander two 25 are frustum-shaped. A through hole is opened on the rotary drum 2, and a blade 36 penetrating the through hole is installed on the base 31. The blade 36 extends into the rotary drum 2, and an inclined surface capable of slidingly cooperating with the side surface of the expander one 24 or the expander two 25 is provided at the end of the blade 36. The movement of the expander one 24 or the expander two 25 can push the blade 36 to move radially away from the axis of the rotary drum 2.

[0051] As Figure 6 and Figure 7 shown, multiple expanders one 24 and multiple expanders two 25 are provided and are alternately arranged. The sliding rod 22 penetrates through the moving tube 21, and a sliding groove 211 is opened on the moving tube 21. The expander two 25 located between two expanders one 24 penetrates through the sliding groove 211 and is fixedly connected to the sliding rod 22, so that the expander two 25 moves with the sliding rod 22, realizing the relative movement of the moving tube 21 and the sliding rod 22, and thus realizing the alternate external clamping of the clamping member 3.

[0052] As Figure 6 and Figure 7 shown, the outer ring is sleeved on the rotating cylinder 2. As the moving tube 21 and the sliding rod 22 move alternately, the first expanding member 24 and the second expanding member 25 alternately push the blade 36 to move radially away from the axis of the outer ring. The blade 36 drives the base 31 and the pressing rod 34 to move in sequence. When the pressing rod 34 contacts the inner wall of the outer ring, as the blade 36 drives the base 31 to continue moving radially away from the axis of the outer ring, the pressing rod 34 squeezes the bladder 33, increasing the air pressure in the air chamber 35 and deforming the flexible support plate 32. The end face of the support plate 32 closely adheres to the inner wall of the outer ring, increasing the contact area between the support plate 32 and the outer ring, which is beneficial to reducing the deformation of the outer ring during polishing.

[0053] During the polishing process, as Figure 2 and Figure 6 shown, the driving member 5 drives the rotating cylinder 2 to rotate. The rotating cylinder 2 drives the blade 36 to rotate. The rotation of the blade 36 generates an air flow, which is beneficial to reducing the heat generated by the friction between the outer ring and the polishing assembly 4 during polishing, thereby being beneficial to reducing the deformation of the outer ring; the clamping member 3 alternately clamps the outer ring, which can change the clamping position of the outer ring, being beneficial to uniform heat dissipation of the outer ring, thereby being beneficial to reducing the deformation of the outer ring. At the same time, it reduces the safety hazard brought to the operator by the excessive heat of the outer ring after polishing.

[0054] As Figure 7 and Figure 8 shown, when the moving tube 21 or the sliding rod 22 moves in the reverse direction, the first expanding member 24 or the second expanding member 25 loses the acting force on the blade 36. The elastic ring 38 resets the base 31, and the return spring 39 resets the pressing rod 34.

[0055] As Figure 5 shown, a plurality of baffles 113 for limiting the outer ring sleeved on the rotating cylinder 2 are installed on the mounting plate 112. After sleeving a plurality of outer rings on the rotating cylinder 2, the rotary cylinder 114 drives the rotating shaft 111 to rotate. The rotating shaft 111 drives the mounting plate 112 and the rotating cylinder 2 to tilt upward. Under the limiting action of the baffles 113, the outer rings are arranged in an orderly manner on the rotating cylinder 2, which is beneficial to reducing the tilt of the outer rings on the rotating cylinder 2, thereby being beneficial to improving the clamping stability of the outer rings.

[0056] As Figure 1 and Figure 3 shown, a blanking pipe 13 is provided on one side of the rotating cylinder 2. The blanking pipe 13 is installed on the moving frame 14. The blanking pipe 13 has an inclined section and a horizontal section. A plurality of stoppers 131 for limiting the outer ring in the blanking pipe 13 are installed at the end of the blanking pipe 13. The stoppers 131 are flexible.

[0057] As Figure 1 shown, the outer ring to be polished is conveyed into the blanking pipeFigure 3 As shown, the stopper 131 limits the outer ring. For example, Figure 2 as shown, the first lead screw adjustment mechanism 12 drives the sliding carriage 11 to move, so that the rotary drum 2 extends into the blanking pipe 13, and the outer ring is sleeved inside the rotary drum 2. For example, Figure 6 as shown, after the clamping member 3 clamps and positions the outer ring, the first lead screw adjustment mechanism 12 drives the sliding carriage 11 to move in the reverse direction, so that the rotary drum 2 is separated from the blanking pipe 13, which is beneficial to realizing the rapid feeding of multiple outer rings, realizing the simultaneous polishing of multiple outer rings, and is beneficial to improving the polishing efficiency.

[0058] For example, Figure 1 and Figure 3 as shown, a blanking port 16 is provided on the workbench 1, and the blanking port 16 is located on one side of the sliding carriage 11. For example, Figure 5 as shown, the rotary cylinder 114 drives the rotary drum 2 to tilt downward so that the outer ring on the rotary drum 2 falls from the blanking port 16.

[0059] For example, Figure 1 as shown, after the polishing assembly 4 polishes the outer ring, for example, Figure 3 as shown, the first lead screw adjustment mechanism 12 drives the rotary drum 2 to move above the blanking port 16. For example, Figure 5 as shown, the rotary cylinder 114 drives the rotary drum 2 to tilt downward. For example, Figure 6 as shown, the clamping member 3 releases the clamping of the outer ring, which is convenient for realizing the blanking of the outer ring.

[0060] A polishing process for the outer ring of a thin-walled bearing uses the above-mentioned polishing device for the outer ring of a thin-walled bearing, and includes the following steps:

[0061] Step 1: Convey the outer ring to be polished into the blanking pipe 13. The stopper 131 limits the outer ring. The first lead screw adjustment mechanism 12 drives the sliding carriage 11 to move towards the side close to the blanking pipe 13, so that the rotary drum 2 extends into the blanking pipe 13, and the outer ring is sleeved inside the rotary drum 2. After the clamping member 3 clamps and positions the outer ring, the first lead screw adjustment mechanism 12 drives the sliding carriage 11 to move away from the blanking pipe 13, so that the rotary drum 2 is separated from the blanking pipe 13; during clamping, the linear drive 23 drives the moving pipe 21 or the sliding rod 22 to move, so that the expanding member one 24 or the expanding member two 25 pushes the blade 36 to move radially away from the axis of the outer ring, and the blade 36 drives the base 31 and the pressure rod 34 to move synchronously. When the pressure rod 34 contacts the inner wall of the outer ring, the pressure rod 34 squeezes the bladder 33, so that the air pressure in the air chamber 35 increases, and the support plate 32 deforms and supports the outer ring;

[0062] Step 2: The linear driver 23 drives the moving tube 21 or the sliding rod 22 to move in the reverse direction, so that the clamping member 3 releases the clamping of the outer ring; the rotary cylinder 114 is started, and the rotary cylinder 114 drives the rotating shaft 111 to rotate, so that the rotating shaft 111 drives the mounting plate 112 and the rotating cylinder 2 to tilt upward. Under the limiting action of the baffle 113, the outer rings are arranged in an orderly manner on the rotating cylinder 2. The linear driver 23 drives the moving tube 21 or the sliding rod 22 to move, so that the clamping member 3 clamps the outer ring; the rotary cylinder 114 is started to keep the axis of the rotating cylinder 2 in a horizontal state; the second lead screw adjusting mechanism 15 is started to adjust the distance between the polishing wheel 41 and the outer ring.

[0063] Step 3: The driving member 5 drives the rotating cylinder 2 to rotate and drives the outer ring to rotate. The polishing assembly 4 polishes the outer ring. The rotating cylinder 2 drives the blade 36 to rotate, and the airflow generated by the blade 36 can drive the heat generated during the polishing of the outer ring; the first lead screw adjusting mechanism 12 drives the outer ring to move, so that the outer rings on the rotating cylinder 2 are polished in sequence.

[0064] Step 4: After the polishing is completed, the first lead screw adjusting mechanism 12 drives the rotating cylinder 2 to move above the blanking port 16, and the rotary cylinder 114 drives the rotating cylinder 2 to tilt downward, and the clamping member 3 releases the clamping of the outer ring, realizing the blanking of the outer ring.

[0065] In addition, it should be noted that in the description of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0066] The above is the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A thin-walled bearing outer ring polishing device, comprising a rotating cylinder and a polishing assembly arranged on a workbench, the rotating cylinder being driven by a driving member, characterized in that: A plurality of clamping members are evenly distributed at intervals on the circumferential side of the rotary drum; the clamping member includes a base, two flexible support plates mounted on the base, a bladder connected between the two support plates, and a pressure rod slidably disposed on the base and above the bladder; both support plates are hollow structures, and an air chamber is formed between the two support plates, the bladder and the base; A moving tube is slidably disposed in the rotary drum, and a sliding rod is slidably disposed in the moving tube. The moving tube and the sliding rod are respectively driven by a linear drive; an expansion member one is mounted on the moving tube, and an expansion member two is mounted on the sliding rod. Both the expansion member one and the expansion member two are frustum-shaped. A blade passing through the rotary drum is mounted on the base, and an inclined surface capable of slidingly cooperating with the side surface of the expansion member one or the expansion member two is provided at the end of the blade; Support members are mounted at both ends of the base, elastic rings capable of sleeving on the support members are provided at both ends of the rotary drum, and a return spring is connected between the pressure rod and the support member; A chute is formed in the moving tube so that the expansion member two located between the two expansion members one passes through the chute and is connected to the sliding rod.

2. The thin-walled bearing outer ring polishing device according to claim 1, characterized in that: A rotating shaft is rotatably provided on the workbench, a mounting plate is fixedly connected to the rotating shaft, the rotary drum is rotatably connected to the mounting plate, a baffle capable of limiting the outer ring sleeved on the rotary drum is mounted on the mounting plate, and a rotary cylinder capable of driving the rotating shaft to rotate is provided at one end of the rotating shaft.

3. The thin-walled bearing outer ring polishing device according to claim 2, wherein: A blanking tube is provided on one side of the rotary drum, and a plurality of blocks capable of limiting the outer ring in the blanking tube are mounted at the end of the blanking tube. The blocks are flexible; a sliding frame is slidably provided on the workbench, the rotating shaft is rotatably mounted on the sliding frame, and the movement of the sliding frame is driven by a first lead screw adjusting mechanism provided on the workbench.

4. The thin-walled bearing outer ring polishing device according to claim 3, characterized in that: Both the sliding frame and the blanking tube are mounted on a moving frame, a polishing assembly is provided on one side of the moving frame, and a second lead screw adjusting mechanism capable of driving the moving frame to move is provided below the workbench. The moving directions of the moving frame and the sliding frame are perpendicular.

5. The thin-walled bearing outer ring polishing device according to claim 3, characterized in that: A blanking port is provided on the workbench, and the blanking port is located on one side of the sliding frame. The rotary cylinder drives the rotary drum to tilt downward so that the outer ring on the rotary drum falls from the blanking port.

6. A polishing process for the outer ring of a thin-walled bearing, using the thin-walled bearing outer ring polishing device described in claim 1, characterized in that: It includes the following steps: Step one: The linear drive drives the moving tube and the sliding rod to move alternately, so that the clamping members alternately clamp the outer ring sleeved on the rotary drum. During clamping, the expansion member one or the expansion member two pushes the blade to move, and the blade drives the base to move. When the pressure rod contacts the inner wall of the outer ring, the pressure rod squeezes the bladder, causing the support plate to deform and support the outer ring; Step two: The drive member drives the rotary drum to rotate and drives the outer ring to rotate. The polishing assembly polishes the outer ring. The rotary drum drives the blade to rotate, and the airflow generated by the blade can drive the heat generated during the polishing of the outer ring.

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