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CN-122007860-A - Bearing assembly tool and assembly method thereof

CN122007860ACN 122007860 ACN122007860 ACN 122007860ACN-122007860-A

Abstract

The invention provides a bearing assembly tool and an assembly method thereof, and relates to the technical field of bearing assembly, wherein the bearing assembly tool comprises a press fitting device for performing press fitting operation on bearings, a clamping seat for positioning and bearing the bearings to be assembled and matched workpieces, and further comprises a height adjusting mechanism, an angle adjusting mechanism and a plane moving mechanism; the height adjusting mechanism is used for adjusting the vertical operation height of the press fitting device, the angle adjusting mechanism is used for adjusting the pitching angle of the clamping seat, and the plane moving mechanism is used for adjusting the two-dimensional position of the clamping seat in the horizontal plane. The invention has the following beneficial effects that through the cooperative cooperation of the height adjusting mechanism, the angle adjusting mechanism and the plane moving mechanism, the full dimension adjustable vertical height of the press fitting device, the horizontal X, Y of the clamping seat to the two-dimensional position and the pitching angle of the clamping seat is realized, the press fitting operation of bearings with different specifications, sizes and different installation angles can be adapted, and the tool clamp is not required to be frequently replaced.

Inventors

  • MA AIJUN
  • CHEN YUQUN

Assignees

  • 合肥蓝海轴承有限公司

Dates

Publication Date
20260512
Application Date
20260407

Claims (10)

  1. 1. The bearing assembly fixture comprises a press fitting device (1) for performing press fitting operation on a bearing, and a clamping seat (2) for positioning and bearing the bearing to be assembled and a matched workpiece, and is characterized by further comprising a height adjusting mechanism, an angle adjusting mechanism and a plane moving mechanism; The height adjusting mechanism is used for adjusting the vertical working height of the press fitting device (1), the angle adjusting mechanism is used for adjusting the pitching angle of the clamping seat (2), and the plane moving mechanism is used for adjusting the two-dimensional position of the clamping seat (2) in a horizontal plane; The device comprises a base (3), a plane moving mechanism, an angle adjusting mechanism, a clamping seat (2), a height adjusting mechanism, a pressing device (1) and a pressing head, wherein the plane moving mechanism is arranged at the top of the base (3), the angle adjusting mechanism is arranged at the moving end of the plane moving mechanism, and the clamping seat (2) is arranged at the pitching end of the angle adjusting mechanism; The height adjusting mechanism comprises a support frame (4) vertically fixed on one side of the top of the base (3), two vertically extending guide posts (5) are symmetrically arranged in the support frame (4), a first sliding block (6) is sleeved on the two guide posts (5) in a sliding mode, a support (7) transversely extending is fixed on one side, facing the clamping seat (2), of the first sliding block (6), a hydraulic cylinder (8) is vertically fixed on the support (7), and the bottom end of a piston rod of the hydraulic cylinder (8) is fixedly connected with the top of the press-fit device (1); The three (37) of lead screw that still rotate in support frame (4) are connected with vertical extension, lead screw is three (37) are located between two guide posts (5), just lead screw is three (37) and slider one (6) screw thread fit, the top of support frame (4) is fixed with motor three (38), the coaxial fixed connection in top of output shaft and lead screw three (37) of motor three (38).
  2. 2. The bearing assembly tool according to claim 1, wherein the angle adjusting mechanism comprises a workbench (9) fixed at the moving end of the plane moving mechanism, two supports (10) are symmetrically arranged at the top of the workbench (9) and on two sides of the clamping seat (2), an underframe (11) is arranged between the two supports (10), fixing shafts (12) extending transversely are symmetrically fixed on two sides of the underframe (11), the two fixing shafts (12) are respectively and rotatably connected with the supports (10) on the corresponding side, one of the supports (10) is fixedly provided with a motor I (13), an output shaft of the motor I (13) is fixedly connected with the fixing shaft (12) on the corresponding side coaxially, and the clamping seat (2) is detachably fixed at the top of the underframe (11) through the fixing mechanism.
  3. 3. The bearing assembly tool according to claim 2, wherein the fixing mechanism comprises four sliding blocks (14) which are uniformly distributed circumferentially and take the center of the clamping seat (2) as a circle center, clamping blocks (15) which are used for abutting and clamping the side wall of the clamping seat (2) are fixedly arranged at the top of each sliding block (14), sliding rails (16) which are in one-to-one sliding fit with the sliding blocks (14) are arranged at the top of the bottom frame (11), screw rods (17) are uniformly connected with the four clamping blocks (15) in a threaded manner, the screw rods (17) are uniformly distributed circumferentially and circumferentially of the clamping seat (2), and a linkage mechanism used for driving the four screw rods (17) to synchronously rotate is further arranged at the top of the bottom frame (11).
  4. 4. The bearing assembly tool according to claim 3, wherein the linkage mechanism comprises four transmission shafts (18) which are arranged corresponding to the positions of the first screw rods (17), conical gears (19) are fixed at one ends, close to each other, of the four transmission shafts (18), the four transmission shafts (18) are meshed through the conical gears (19) to realize synchronous rotation, transmission gears (20) are sleeved at one ends, away from each other, of the two transmission shafts (18) in the same axial direction, driven gears (21) are fixed at one ends, close to the first screw rods (17), of the two screw rods (18) in the same axial direction, of the group of transmission shafts, and the driven gears (21) are meshed with the transmission gears (20) at the corresponding sides one by one.
  5. 5. The bearing assembly tool according to claim 4, wherein one end of one transmission shaft (18) is fixedly connected with an output end of a motor II (22) fixed at the top of the underframe (11) coaxially, a plurality of bearing seats (23) are further fixed at the top of the underframe (11), and the transmission shaft (18) and a screw rod I (17) are rotatably connected with the underframe (11) through the corresponding bearing seats (23).
  6. 6. The bearing assembly fixture according to claim 5, wherein the planar moving mechanism comprises an X-direction adjusting assembly and a Y-direction adjusting assembly, the X-direction adjusting assembly is used for driving the clamping seat (2) to move along a horizontal X-direction, the Y-direction adjusting assembly is used for driving the clamping seat (2) to move along a horizontal Y-direction, and the X-direction and the Y-direction are mutually perpendicular in a horizontal plane.
  7. 7. The bearing assembly tool according to claim 6, wherein the X-direction adjusting assembly comprises two side plates (24) symmetrically fixed on two sides of the bottom of the workbench (9), two guide rods (25) symmetrically arranged are fixed between the two side plates (24), sliding sleeves (26) are sleeved on the guide rods (25), a supporting plate (27) is fixedly connected to the bottoms of the sliding sleeves (26) together, a screw rod (28) is further rotatably connected between the two side plates (24), two connecting seats (29) are matched with the screw rod (28) in a threaded mode, the bottom ends of the two connecting seats (29) are fixedly connected with the top of the supporting plate (27), and one end of the screw rod (28) penetrates through the corresponding side plate (24) and is fixedly provided with a hand wheel (30).
  8. 8. The bearing assembly tool according to claim 7, wherein the Y-direction adjusting assembly comprises two sliding sleeve II (31) symmetrically fixed at the bottom of the supporting plate (27), two sliding rod II (32) which are arranged in parallel are matched on the two sliding sleeve II (31) in a sliding mode, two side plate II (33) fixedly connected with the top of the base (3) are fixed at two ends of the two sliding rod II (32), a screw rod II (34) is further connected between the two side plate II (33) in a rotating mode, two connecting seat II (35) are matched on the screw rod II (34) in a threaded mode, the top ends of the two connecting seat II (35) are fixedly connected with the bottom of the supporting plate (27), and one end of the screw rod II (34) penetrates through the corresponding side plate II (33) and is fixedly provided with a hand wheel II (36).
  9. 9. A method of assembling a bearing assembly fixture according to claim 8, comprising the steps of: S1, positioning a bearing to be assembled and a matched workpiece on a clamping seat (2), and clamping and fixing the clamping seat (2) on a bottom frame (11) through a fixing mechanism; S2, adjusting the two-dimensional position of the clamping seat (2) in a horizontal plane through a plane moving mechanism to enable the center of the clamping seat (2) to be coaxial with the center of a pressure head of the press-fitting device (1), and adjusting the vertical height of the press-fitting device (1) through a height adjusting mechanism to enable the pressure head of the press-fitting device (1) to be close to the top of a bearing to be assembled; S3, starting a hydraulic cylinder (8), driving the press fitting device (1) to move downwards, and finishing press fitting assembly of the bearing and the matched workpiece; and S4, after the press fitting is finished, the hydraulic cylinder (8) drives the press fitting device (1) to reset upwards, the fixing mechanism is loosened, and the clamping seat (2) and the assembled workpiece are taken down.
  10. 10. The assembly method of the bearing assembly fixture according to claim 9, wherein in the step S1, the clamping operation of the fixing mechanism is specifically that the second motor (22) is started, the transmission shaft (18) and the bevel gear (19) are meshed to drive the four transmission shafts (18) to synchronously rotate, the transmission gear (20) and the driven gear (21) are meshed to drive the four first screw rods (17) to synchronously rotate, the four second sliding blocks (14) are driven to synchronously move towards the center of the clamping seat (2) along the sliding rail (16), and the four clamping blocks (15) synchronously abut against the side wall of the clamping seat (2) to finish centering clamping of the clamping seat (2).

Description

Bearing assembly tool and assembly method thereof Technical Field The invention relates to a bearing assembly tool and an assembly method thereof, and belongs to the technical field of bearing assembly. Background The bearing is used as a core basic component in a mechanical transmission system, and the assembly quality of the bearing directly determines the operation precision, the service life and the reliability of the rotating equipment. Bearing press-fitting is a core link in a bearing assembly process, and the coaxiality of the inner ring, the outer ring and the matched workpiece of the bearing is ensured in the press-fitting process, so that the defects of unbalanced load, rollaway nest scratch, retainer deformation and the like of the bearing are avoided. In the prior art, the conventional bearing press-fitting tool is of a fixed structure, and the relative positions of the press-fitting heads and the clamping stations are fixed, so that the bearing press-fitting tool can only adapt to bearing press-fitting operations with single specification and single installation angle. When facing the bearing of different internal diameters, external diameters, or need inclination pressure equipment's operating mode, need frequently change frock clamp, not only complex operation, production efficiency are low, still easily lead to the pressure equipment axiality to be up to standard because of the centering error after the frock is changed. Meanwhile, the clamping mechanism of the existing tool is mostly clamped by a single-side clamping mode or a manual alignment clamping mode, high-precision centering clamping of the clamping seat is difficult to achieve, coaxiality deviation of the clamping seat and the press-fit head is easy to cause, single-side stress of a bearing is caused in the press-fit process, and therefore the problems of insufficient bearing assembly precision and high rejection rate are caused. In addition, the adjustment capability of the press-fitting height and the parallelism of the press-fitting surface of the existing tool is insufficient, the bearing press-fitting requirement under complex working conditions cannot be adapted, the universality is poor, and the assembly production requirement of multiple varieties and small batches of bearings is difficult to meet. Disclosure of Invention Aiming at the defects existing in the prior art, the invention aims to provide a bearing assembly tool and an assembly method thereof. In order to achieve the above object, the present invention is realized by the following technical scheme: The bearing assembly fixture comprises a press fitting device for performing press fitting operation on a bearing, a clamping seat for positioning and bearing the bearing to be assembled and a matched workpiece, a height adjusting mechanism, an angle adjusting mechanism and a plane moving mechanism; The height adjusting mechanism is used for adjusting the vertical working height of the press fitting device, the angle adjusting mechanism is used for adjusting the pitching angle of the clamping seat, and the plane moving mechanism is used for adjusting the two-dimensional position of the clamping seat in the horizontal plane; The device comprises a base, a plane moving mechanism, an angle adjusting mechanism, a clamping seat, a height adjusting mechanism, a press fitting device and a pressing head, wherein the plane moving mechanism is arranged at the top of the base, the angle adjusting mechanism is arranged at the moving end of the plane moving mechanism, and the clamping seat is arranged at the pitching end of the angle adjusting mechanism; the height adjusting mechanism comprises a support frame vertically fixed on one side of the top of the base, two vertically extending guide posts are symmetrically arranged in the support frame, a first sliding block is sleeved on the two guide posts in a sliding mode, a transversely extending support is fixed on one side of the first sliding block, which faces the clamping seat, a hydraulic cylinder is vertically fixed on the support frame, and the bottom end of a piston rod of the hydraulic cylinder is fixedly connected with the top of the press fitting device; the support frame is internally and rotatably connected with a screw rod III which extends vertically, the screw rod III is positioned between the two guide posts, the screw rod III is in threaded fit with the slide block I, the top of the support frame is fixedly provided with a motor III, and an output shaft of the motor III is coaxially and fixedly connected with the top end of the screw rod III. Preferably, the angle adjusting mechanism comprises a workbench fixed at the moving end of the plane moving mechanism, two supports are symmetrically arranged at the top of the workbench and positioned at two sides of the clamping seat, an underframe is arranged between the two supports, fixing shafts extending transversely are symmetrically fixed at two sides of the underfram