Sleeve collecting device for automatic assembly of inner assembly of tapered roller bearing

Abstract

The utility model relates to the technical field of assembly of bearing inner components, in particular to a sleeve collecting device for automatic assembly of tapered roller bearing inner components, which comprises a female die seat arranged on a lower workbench of a hydraulic machine, a sleeve collecting female die arranged on the female die seat, a withdrawing mechanism arranged on the lower workbench of the hydraulic machine and a sleeve collecting male die arranged on an upper workbench of the hydraulic machine. The female die base is cylindrical, an opening is formed in the upper end of the female die base, the sleeve collecting female die is of an annular structure, the inner wall of the sleeve collecting female die is conical, a plurality of clearance grooves are formed in the inner wall of the sleeve collecting female die in the circumferential direction, a groove is formed in the bottom end of the inner wall of the sleeve collecting female die, and the retreating mechanism penetrates through the female die base and is coaxially arranged with the sleeve collecting female die. A working table on a hydraulic machine drives the sleeve collecting male die to move downwards, the lower end face of the retainer is bent, straightening operation of an expansion point of the retainer is achieved, a groove of a main working part of the sleeve collecting female die is designed into a fillet with a certain size, and the phenomenon that the appearance and the service life of a bearing are affected due to the fact that burrs are polished out in the sleeve collecting process of the roller retainer is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing inner component assembly, in particular to a sleeve collecting device for automatic assembly of tapered roller bearing inner components. Background Art

[0002] During the assembly process of a tapered roller bearing, the roller retainer and inner sleeve must be straightened through a shrinking die to form the inner component. During this shrinking process, riveting marks and burrs may appear on the retainer. If these burrs enter the raceway, they can severely impact the bearing's service life and vibration levels, which in turn can cause the bearing to produce significant noise. The shrinking die also occasionally has a shrinking beam that is too narrow, resulting in a narrow shrinkage mark after shrinking, affecting the bearing's appearance. Furthermore, with the advancement of automation in the bearing industry, the assembly of bearing inner resistance components has become fully automated, and the design of the shrinking die has also evolved to differentiate it from conventional dies. In light of this, a shrinking device for the automated assembly of tapered roller bearing inner components has been invented. Utility Model Content

[0003] The purpose of the utility model is to provide a sleeve collecting device for the automatic assembly of the inner components of a tapered roller bearing, so as to solve the problems mentioned in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sleeve-collecting device for the automated assembly of the inner components of a tapered roller bearing, comprising a die seat arranged on the lower worktable of a hydraulic press, a sleeve-collecting die arranged on the die seat, an exit mechanism arranged on the lower worktable of the hydraulic press, and a sleeve-collecting punch arranged on the upper worktable of the hydraulic press; the die seat is cylindrical and has an open upper end, the sleeve-collecting die is an annular structure and has a conical inner wall, a plurality of empty knife grooves are provided on the inner wall of the sleeve-collecting die along the circumferential direction, a groove is provided on the bottom end of the inner wall of the sleeve-collecting die, and the exit mechanism passes through the die seat and is arranged coaxially with the sleeve-collecting die.

[0005] Furthermore, the exit mechanism includes a cylinder arranged on the lower workbench of the hydraulic press, a transmission shaft vertically slidingly arranged in the middle of the die seat and connected to the cylinder output shaft, and an exit block arranged on the transmission shaft; the exit block is circular and adapted to the sleeve die, and the exit block is connected to the end of the transmission shaft by a screw.

[0006] Furthermore, the sleeve die is detachably mounted on the die base via fixing bolts.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0008] The utility model is used to straighten the expansion point of the roller retainer when assembling the inner components of a large-taper-angle bearing; the upper workbench of the hydraulic press drives the sleeve-shrinking punch to move downward, and bends the lower end surface of the retainer, so as to realize the straightening operation of the expansion point of the retainer. The device has a simple structure and is easy to operate, and the groove of the main working part of the sleeve-shrinking die is designed to be a fillet of a certain size, thereby avoiding the phenomenon that burrs are produced by the roller retainer during the sleeve-shrinking process, which affects the appearance and service life of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a cross-sectional view of the overall structure of the utility model;

[0010] Figure 2 This is a cross-sectional view of the sleeve-covering die of the utility model;

[0011] Figure 3 It is a top view of the sleeve die of the utility model.

[0012] In the picture:

[0013] 1. Die seat; 2. Sleeve-closing die; 3. Ejection mechanism; 4. Sleeve-closing punch; 5. Cylinder; 6. Drive shaft; 7. Ejection block; 8. Set bolt; 9. Screw; 10. Empty knife groove; 11. Roller retainer; 12. Bearing inner sleeve; 13. Roller; 14. Groove. DETAILED DESCRIPTION

[0014] See also Figures 1 to 3, a sleeve-collecting device for the automated assembly of the inner components of a tapered roller bearing, consisting of a die base 1, a sleeve-collecting die 2, an exit mechanism 3, and a sleeve-collecting punch 4. The die base 1 is fixed to the lower workbench of a hydraulic press, the sleeve-collecting die 2 is detachably mounted on the die base 1 by means of a set bolt 8, the exit mechanism 3 is arranged on the lower workbench of the hydraulic press, and the exit mechanism 3 passes through the die base 1 and is coaxially arranged with the sleeve-collecting die 2, and the sleeve-collecting punch 4 is fixed to the upper workbench of the hydraulic press; when the expansion point of the roller retainer 11 is straightened, the exit mechanism 3 is located at the bottom of the sleeve-collecting die 2, and then the inner components of the bearing (the inner components include the roller retainer 11, the bearing inner sleeve 12, and the roller 13 arranged between the roller retainer 11 and the inner sleeve) are placed by a manipulator in the groove 14 opened at the bottom end of the inner wall of the sleeve-collecting die 2, Then the hydraulic press drives the sleeve punch 4 to move down to the opening opened at the upper end of the cylindrical die seat 1. Since the sleeve die 2 is an annular structure and the inner wall is conical, and a plurality of empty knife grooves 10 are opened circumferentially on the inner wall of the sleeve die 2, when the inner component is pressed downward by the sleeve punch 4, the inner wall of the sleeve die 2 is adapted to the outer wall of the roller retainer 11, and the roller 13 is located in the empty knife groove 10, and the bottom end of the roller retainer 11 is located in the groove 14. The downward pressure of the sleeve punch 4 bends the lower end face of the roller retainer 11, thereby realizing the straightening of the expansion point of the roller retainer 11. After the expansion point of the roller retainer 11 is straightened, the exit mechanism 3 moves up to be flush with the upper end face of the sleeve die 2, so that the robot can collect the inner component and perform subsequent straightening operations on the expansion points of the remaining roller retainers 11.

[0015] The exit mechanism 3 for realizing the above-mentioned function is composed of a cylinder 5 arranged on the lower workbench of the hydraulic press, a transmission shaft 6 which is vertically slidably arranged in the middle of the die base 1 and connected to the output shaft of the cylinder 5, and an exit block 7 which is arranged on the transmission shaft 6 through a screw 9; the exit block 7 is set to be circular and adapted to the sleeve die 2, and the exit block 7 is connected to the end of the transmission shaft 6 through a screw 9. When the exit block 7 needs to move upward, the transmission shaft 6 is driven upward by the cylinder 5, and then the exit block 7 is driven upward to eject the inner component.

[0016] The working principle of the present invention is as follows: when the expansion point of the roller retainer 11 on the inner component is straightened, the assembled inner component is first placed in the sleeve-covering die 2 by a manipulator, and the sleeve-covering punch 4 is driven downward by the workbench on the hydraulic press to move downward, and the bottom end face of the sleeve-covering punch 4 is against the upper end face of the roller retainer 11, and the lower end face of the roller retainer 11 is located in the groove 14 provided on the sleeve-covering die 2, and the lower end face of the roller retainer 11 is bent by the downward pressure of the sleeve-covering punch 4 to realize the straightening operation of the expansion point of the roller retainer 11; after the expansion point of the roller retainer 11 is straightened, the cylinder 5 is started, and the cylinder 5 drives the transmission shaft 6 to move upward, and then drives the exit block 7 to move upward, and the inner component is ejected so as to collect and perform the straightening operation of the expansion point of the roller retainer 11 again.

Claims

1. A sleeve collecting device for automated assembly of inner components of a tapered roller bearing, characterized in that: The invention comprises a die base (1) arranged on the lower workbench of a hydraulic press, a sleeve die (2) arranged on the die base (1), an exit mechanism (3) arranged on the lower workbench of the hydraulic press, and a sleeve punch (4) arranged on the upper workbench of the hydraulic press; the die base (1) is cylindrical and has an open upper end; the sleeve die (2) is an annular structure and has a conical inner wall; a plurality of empty knife grooves (10) are provided on the inner wall of the sleeve die (2) along the circumferential direction; a groove (14) is provided on the bottom end of the inner wall of the sleeve die (2); and the exit mechanism (3) passes through the die base (1) and is arranged coaxially with the sleeve die (2).

2. A sleeve collecting device for automated assembly of inner components of a tapered roller bearing according to claim 1, characterized in that: The exit mechanism (3) comprises a cylinder (5) arranged on the lower workbench of the hydraulic press, a transmission shaft (6) vertically slidably arranged in the middle of the die base (1) and connected to the output shaft of the cylinder (5), and an exit block (7) arranged on the transmission shaft (6); the exit block (7) is circular and adapted to the sleeve die (2), and the exit block (7) is connected to the end of the transmission shaft (6) via a screw (9).

3. The automatic assembly device for the inner components of a tapered roller bearing according to claim 2, characterized in that: The sleeve die (2) is detachably mounted on the die base (1) via a fixing bolt (8).

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