Rolling device for outer ring of needle bearing

Abstract

The utility model discloses a needle bearing outer ring hemming device which comprises a hemming mechanism, and a driving mechanism is arranged below the hemming mechanism. The driving mechanism comprises a mounting table, a driving motor is fixed to the surface of the mounting table, a driving wheel, a first double-groove wheel, a second double-groove wheel and a driven wheel are rotationally connected to the surface of the mounting table, movable shells are fixed to the inner walls of the first double-groove wheel, the second double-groove wheel and the driven wheel, and a mounting shell is fixed to the top of each movable shell. A fixing frame is arranged below the mounting table, an air cylinder is fixed to the bottom of the fixing frame, one end of the air cylinder penetrates through the fixing frame and is fixedly provided with a movable plate, and a push rod is fixed to the top of the movable plate. The bearing outer ring edge curling device has the advantages that edge curling treatment of multiple bearing outer rings can be completed at a time, meanwhile, automatic material ejecting can be conducted, and the problems that when an existing bearing outer ring edge curling device is used, only an independent bearing can be subjected to edge curling treatment, and the machining efficiency is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing processing, in particular to a needle roller bearing outer ring curling device. Background Art

[0002] Needle roller bearings are roller bearings with cylindrical rollers. The rollers are thin and long relative to their diameter. Such rollers are called needle rollers. Despite their small cross-section, the bearings still have a high load bearing capacity. The bearings are fixed to a part by extrusion. At this time, the fit between the bearing and the part is an interference fit. This state cannot guarantee the axial fixation between the bearing and the part during operation. Therefore, a bearing flanging tool is required to flanging the bearing to achieve extrusion fixation between the bearing and the part.

[0003] The existing curling device can only curl a single bearing outer ring at one time, but the curling efficiency is low and it is difficult to meet the factory's large-volume order needs. For this reason, we propose a needle roller bearing outer ring curling device. Utility Model Content

[0004] The purpose of the utility model is to provide a needle roller bearing outer ring curling device, which has the advantages of being able to complete the curling of multiple bearing outer rings at one time and also being able to automatically push the material, thereby solving the problem that the current bearing outer ring curling equipment can only curl a single bearing and has low processing efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a needle roller bearing outer ring curling device, comprising a curling mechanism, a driving mechanism is arranged below the curling mechanism;

[0006] The driving mechanism includes a mounting platform, a driving motor is fixed to the surface of the mounting platform, a driving wheel, a first double-groove wheel, a second double-groove wheel and a driven wheel are rotatably connected to the surface of the mounting platform, a movable shell is fixed to the inner walls of the first double-groove wheel, the second double-groove wheel and the driven wheel, a mounting shell is fixed to the top of the movable shell, a fixing frame is arranged under the mounting platform, a cylinder is fixed to the bottom of the fixing frame, one end of the cylinder passes through the fixing frame and is fixed to a movable plate, a pushing rod is fixed to the top of the movable plate, and a pushing plate is fixed to the top of the pushing rod.

[0007] As a preferred device for curling the outer ring of a needle roller bearing of the utility model, the curling mechanism includes a mounting frame, a hydraulic cylinder is fixed on the top of the mounting frame, one end of the hydraulic cylinder passes through the mounting frame and is fixed with a movable frame, a curling motor is fixed on the surface of the movable frame, the output shaft of the curling motor passes through the movable frame and is fixed with a curling roller, and the surface of the curling roller is rotatably connected to the surface of the movable frame.

[0008] As a preferred embodiment of the needle roller bearing outer ring curling device of the utility model, the diameter of the push rod is smaller than that of the movable shell, and the diameter of the push plate is smaller than that of the mounting shell.

[0009] As a preferred device for curling the outer ring of a needle roller bearing of the utility model, a protective shell is fixed on the top of the mounting platform, the second double-groove wheel and the first double-groove wheel are both located inside the protective shell, and a groove is opened on the surface of the protective shell for use with a movable shell.

[0010] As a preferred embodiment of the needle roller bearing outer ring curling device of the utility model, a guide rod is passed through the surface of the mounting frame, and the bottom of the guide rod is fixedly connected to the surface of the movable frame.

[0011] As a preferred embodiment of the needle roller bearing outer ring curling device of the utility model, the top height of the driving motor is lower than the mounting shell, and an inner groove is provided at the center of the top of the push plate.

[0012] As a preferred embodiment of the needle roller bearing outer ring curling device of the utility model, a controller is fixed on the surface of the mounting platform.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model sets a driving mechanism so that multiple bearing rings can complete the curling process together. The bearing ring can be placed inside the mounting shell and fit with the inner wall of the mounting shell. When curling is required, the driving motor will rotate the driving wheel, and the driving wheel can drive the first double-groove wheel, the second double-groove wheel and the driven wheel to rotate through the belt, so that the multiple movable shells can drive the mounting shell to rotate at the same time, thereby realizing the self-rotation effect of the bearing outer ring, and the curling mechanism can curl the bearing outer rings inside the multiple mounting shells at the same time, thereby greatly improving the production efficiency and production capacity, and meeting the needs of mass production. After the curling of the bearing outer ring is completed, the cylinder is started, so that the mounting table drives the push plate to move upward through the push rod, so that the bearing outer ring engaged in the mounting shell can be ejected, and the bearing outer ring is automatically removed, further improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of another perspective of the utility model;

[0017] Figure 3 It is a cross-sectional structural diagram of the driving mechanism in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the curling mechanism in the utility model.

[0019] In the figure: 1. curling mechanism; 101. mounting frame; 102. hydraulic cylinder; 103. movable frame; 104. curling motor; 105. curling roller; 106. guide rod; 2. driving mechanism; 201. mounting table; 202. driving motor; 203. driving wheel; 204. first double groove wheel; 205. second double groove wheel; 206. driven wheel; 207. movable shell; 208. mounting shell; 209. fixed frame; 210. cylinder; 211. movable plate; 212. pushing rod; 213. pushing plate; 214. protective shell; 3. controller. DETAILED DESCRIPTION

[0020] See also Figure 1-4 , a needle roller bearing outer ring curling device, comprising a curling mechanism 1, a driving mechanism 2 is arranged below the curling mechanism 1;

[0021] The curling mechanism 1 is used to perform curling processing on the bearing ring, and the driving mechanism 2 enables multiple bearing rings to complete the curling processing together.

[0022] The driving mechanism 2 includes a mounting platform 201, a driving motor 202 is fixed on the surface of the mounting platform 201, a driving wheel 203, a first double-groove wheel 204, a second double-groove wheel 205 and a driven wheel 206 are rotatably connected on the surface of the mounting platform 201, the output shaft of the driving motor 202 passes through the mounting platform 201 and is fixedly connected to the driving wheel 203, the driving wheel 203 and the first double-groove wheel 204, the first double-groove wheel 204 and the second double-groove wheel 205, and the second double-groove wheel 205 and the driven wheel 206 are all connected through belt transmission. The inner walls of the first double-grooved wheel 204, the second double-grooved wheel 205 and the driven wheel 206 are all fixed with a movable shell 207, a mounting shell 208 is fixed on the top of the movable shell 207, a fixing frame 209 is arranged below the mounting platform 201, a cylinder 210 is fixed on the bottom of the fixing frame 209, one end of the cylinder 210 passes through the fixing frame 209 and is fixed with a movable plate 211, a push rod 212 is fixed on the top of the movable plate 211, the push rod 212 passes through the inside of the movable shell 207, and a push plate 213 is fixed on the top of the push rod 212;

[0023] The bearing ring can be placed inside the mounting shell 208 and fit with the inner wall of the mounting shell 208. When curling processing is required, the driving motor 202 will rotate the driving wheel 203, and the driving wheel 203 can drive the first double-grooved wheel 204, the second double-grooved wheel 205 and the driven wheel 206 to rotate through the belt, so that multiple movable shells 207 can simultaneously drive the mounting shell 208 to rotate, thereby realizing the self-rotation effect of the bearing outer ring, so that the curling mechanism 1 can simultaneously curl the bearing outer rings inside multiple mounting shells 208, thereby greatly improving production efficiency and production capacity, and meeting mass production needs. After the curling of the bearing outer ring is completed, the cylinder 210 is started, so that the mounting table 201 drives the push plate 213 to move upward through the push rod 212, so that the bearing outer ring engaged in the mounting shell 208 can be ejected, and the automatic removal of the bearing outer ring is realized, further improving the processing efficiency.

[0024] Furthermore, the hemming mechanism 1 includes a mounting frame 101, a hydraulic cylinder 102 is fixed on the top of the mounting frame 101, one end of the hydraulic cylinder 102 passes through the mounting frame 101 and is fixed to a movable frame 103, a hemming motor 104 is fixed to the surface of the movable frame 103, an output shaft of the hemming motor 104 passes through the movable frame 103 and is fixed to a hemming roller 105, and the surface of the hemming roller 105 is rotatably connected to the surface of the movable frame 103;

[0025] The hydraulic cylinder 102 can push the movable frame 103 to move downward, and the curling motor 104 can drive the curling roller 105 to rotate. When the surface of the rotating curling roller 105 contacts the edge of the bearing ring inside the mounting shell 208, the continuous downward pressure of the hydraulic cylinder 102 can realize the curling processing of the outer ring of the bearing.

[0026] Further, the diameter of the push rod 212 is smaller than that of the movable shell 207 , and the diameter of the push plate 213 is smaller than that of the mounting shell 208 ;

[0027] When the movable shell 207 and the mounting shell 208 rotate, the push rod 212 and the push plate 213 will not rub against the inner walls of the movable shell 207 and the mounting shell 208, thereby reducing the occurrence of wear.

[0028] Furthermore, a protective shell 214 is fixed on the top of the mounting platform 201, the second double-groove wheel 205 and the first double-groove wheel 204 are both located inside the protective shell 214, and a groove is provided on the surface of the protective shell 214 for use with the movable shell 207;

[0029] The protective shell 214 can protect the surfaces of the second double-groove pulley 205 and the first double-groove pulley 204 to prevent operators from touching the belts on the surfaces of the first double-groove pulley 204 and the second double-groove pulley 205, thereby reducing accidental risks.

[0030] Furthermore, a guide rod 106 is passed through the surface of the mounting frame 101, and the bottom of the guide rod 106 is fixedly connected to the surface of the movable frame 103;

[0031] When the movable frame 103 moves, the guide rod 106 can slide on the surface of the mounting frame 101 , thereby providing a guiding effect for the movable frame 103 .

[0032] Furthermore, the top height of the driving motor 202 is lower than the mounting shell 208, and an inner groove is provided at the top center of the push plate 213;

[0033] It ensures that the curling roller 105 will not contact the top of the driving motor 202, thereby avoiding damage to the driving motor 202. The setting of the inner groove can reduce the contact area between the top of the push plate 213 and the outer ring of the bearing, thereby reducing the friction effect on the bottom of the bearing ring, making the bearing ring easier to be driven to rotate by the mounting shell 208.

[0034] Furthermore, a controller 3 is fixed on the surface of the mounting platform 201, and the controller 3 is electrically connected to the cylinder 210, the hydraulic cylinder 102 and the driving motor 202;

[0035] The controller 3 can operate the air cylinder 210 , the hydraulic cylinder 102 and the drive motor 202 .

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A needle roller bearing outer ring curling device, comprising a curling mechanism (1), characterized in that: A driving mechanism (2) is provided below the crimping mechanism (1); The driving mechanism (2) comprises a mounting platform (201), a driving motor (202) being fixed on the surface of the mounting platform (201), a driving wheel (203), a first double-grooved wheel (204), a second double-grooved wheel (205) and a driven wheel (206) being rotatably connected on the surface of the mounting platform (201), a movable shell (207) being fixed on the inner walls of the first double-grooved wheel (204), the second double-grooved wheel (205) and the driven wheel (206), a mounting shell (208) being fixed on the top of the movable shell (207), a fixing frame (209) being arranged below the mounting platform (201), a cylinder (210) being fixed on the bottom of the fixing frame (209), one end of the cylinder (210) passing through the fixing frame (209) and being fixed with a movable plate (211), a pushing rod (212) being fixed on the top of the movable plate (211), and a pushing plate (213) being fixed on the top of the pushing rod (212).

2. The needle roller bearing outer ring curling device according to claim 1, characterized in that: The curling mechanism (1) comprises a mounting frame (101), a hydraulic cylinder (102) being fixed on the top of the mounting frame (101), one end of the hydraulic cylinder (102) passing through the mounting frame (101) and being fixed with a movable frame (103), a curling motor (104) being fixed on the surface of the movable frame (103), an output shaft of the curling motor (104) passing through the movable frame (103) and being fixed with a curling roller (105), and a surface of the curling roller (105) being rotatably connected to a surface of the movable frame (103).

3. The needle roller bearing outer ring curling device according to claim 1, characterized in that: The push rod (212) has a smaller diameter than the movable shell (207), and the push plate (213) has a smaller diameter than the mounting shell (208).

4. The needle roller bearing outer ring curling device according to claim 1, characterized in that: A protective shell (214) is fixed on the top of the mounting platform (201); the second double-grooved wheel (205) and the first double-grooved wheel (204) are both located inside the protective shell (214); and a groove for cooperating with the movable shell (207) is provided on the surface of the protective shell (214).

5. The needle roller bearing outer ring curling device according to claim 2, characterized in that: A guide rod (106) passes through the surface of the mounting frame (101), and the bottom of the guide rod (106) is fixedly connected to the surface of the movable frame (103).

6. The needle roller bearing outer ring curling device according to claim 1, characterized in that: The top height of the driving motor (202) is lower than the mounting shell (208), and an inner groove is provided at the center of the top of the push plate (213).

7. The needle roller bearing outer ring curling device according to claim 1, characterized in that: A controller (3) is fixed on the surface of the mounting platform (201).

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