A bearing retainer feeding device

Abstract

A bearing cage loading device includes a cage storage part, a pushing part, a blanking part and a feeding part. The storage part includes a storage rack, the storage rack is fixed on a fixed plate, and a blanking part is arranged at a blanking port of the storage rack, and the blanking part is driven by a cage blanking cylinder; the pushing part includes a pushing cylinder, the pushing cylinder acts on the fixed plate, and the fixed plate is also connected to a pushing slider; the alignment part includes an alignment motor and an alignment bearing, the alignment bearing includes an alignment inner ring and an alignment outer ring, and a cage accommodating space is formed between the alignment inner ring and the alignment outer ring; the feeding part includes a feeding drive component, and the feeding drive component is connected to the alignment part. The device has the advantages of simple structure and high degree of automation.

Description

Technical Field

[0001] The invention relates to the technical field of bearing manufacturing, and in particular to a bearing retainer feeding device. Background Art

[0002] Bearings are an important component in modern mechanical equipment. Their main function is to support mechanical rotating bodies, reduce the friction coefficient during their movement, and ensure rotation accuracy. According to the different friction properties of the moving elements, bearings can be divided into rolling bearings and sliding bearings; rolling bearings generally include inner rings, outer rings, rolling elements, and cages; cages refer to bearing parts that partially or completely wrap the rolling elements and move with the rolling elements. Cages are used to isolate the rolling elements, and usually guide the rolling elements and keep them in the bearings.

[0003] Currently, the commonly used bearing cage feeding devices include turntable feeding devices and ratchet feeding devices:

[0004] The turntable loading device generally uses a cylinder to drive the turntable to rotate, and through the alternating extension and retraction of two sets of upper and lower adjacent ejectors on the loading plate, the cage falls vertically from the middle of the turntable. This method requires a simple structure, but the cage must be stacked on the string rod of the turntable in advance, which requires manual operation, increasing labor costs, and can only fall vertically along the turntable position, limiting the diversity of production layout methods.

[0005] During the grasping process of the ratchet-type feeding device, the retaining frame is subjected to the extrusion force, which may cause the retaining frame to be deformed and damaged. In addition, this grasping method requires high positioning accuracy of the robot. If there is a certain degree of deviation between the retaining frame and the specified arrival position, the retaining frame may not be grasped or may be squeezed from above and deformed. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a bearing cage loading device, which first discharges the cage located at the bottom of the storage rack through a blanking part, and the output cage is positioned by a positive bearing, and finally transported to the next station (such as a cage and roller fitting station) through a feeding part. The technical scheme adopted is: a bearing cage loading device, including a cage storage part, a pushing part, a blanking part and a feeding part, the storage part includes a storage rack, and the storage rack is fixed on a fixed plate, characterized in that: a blanking part is arranged at the blanking port of the storage rack, and the blanking part is driven by a cage blanking cylinder; the pushing part includes a pushing cylinder, the pushing cylinder acts on the fixed plate, and the fixed plate is also connected to a pushing slider; the positive part includes a positive motor and a positive bearing, the positive bearing includes a positive inner ring and a positive outer ring, and a cage accommodating space is formed between the positive inner ring and the positive outer ring; the feeding part includes a feeding drive component, and the feeding drive component is connected to the positive part.

[0007] In order to ensure that the cage is normally fed to the aligning bearing and the accuracy of its position in the aligning bearing, the feeding device also includes a detection part, which includes a reflection switch and a diffuse reflection switch located beside the aligning bearing. The reflection switch detects that the cage is transported to the aligning bearing, and the diffuse reflection switch detects that the cage is in the aligning bearing to complete the alignment.

[0008] The blanking part structure of the device is as follows: the blanking assembly includes a horizontally arranged blanking dial, the opening of the blanking dial is connected to a blanking slider, and the blanking dial is connected to a blanking cylinder of a retaining frame. When the blanking dial is driven by the blanking cylinder of the retaining frame and is in a blanking state, the internal space enclosed by the blanking dial and the blanking slider is larger than the outer diameter of the retaining frame. When the blanking dial is driven by the blanking cylinder of the retaining frame and is in a clamping state, the internal space enclosed by the blanking dial and the blanking slider is smaller than the outer diameter of the retaining frame.

[0009] In order to enable the push cylinder to push the fixed plate steadily and rhythmically, the end of the push cylinder piston rod is connected to a floating joint, and the push cylinder piston rod acts on the fixed plate via the floating joint.

[0010] The device uses a cylinder to transport the retainer to the next station, that is, the feeding drive component is a feeding cylinder, the piston rod of the feeding cylinder is connected to the support plate bracket of the positive part, and the positive bearing is connected to the support plate bracket. The feeding part also includes a feeding slider connected to the support plate bracket, and the feeding slider is matched on the feeding guide rail.

[0011] In order to detect the conveying condition of the retainer online, the feeding device also includes a detection part, which includes a retainer in place detection switch bracket arranged near the retainer conveying route, and the retainer in place detection switch bracket is equipped with a retainer in place detection switch.

[0012] The beneficial effects of the present invention are as follows: the cage of the device is conveyed downward by the control of the blanking assembly and is aligned by the positioning device. The detection part performs online detection of the conveying condition of the cage, and the cage conveying is stable, reliable and highly accurate; the upper opening of the storage rack of the device is open, and materials can be loaded at any time to alleviate the disadvantage of untimely replenishment of the cage loading mechanism used in the prior art; the device takes materials from the bottom of the superimposed cage material column, and the blanking dial only releases one cage each time and automatically places it on the receiving tray to achieve the separation of the cage; the cage alignment part can drive the cage to rotate, and detect the angle of the cage through the detection switch, so that the angular state of the cage meets the subsequent assembly angle requirements; the cage feeding mechanism can take and feed materials between the two sets of cage blanking systems, thereby improving the cage loading efficiency and uninterrupted loading. The device has the advantages of simple structure and high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Attached Figure 1 It is a schematic diagram of the structure of the present invention, Figure 2 This is a schematic diagram of the propulsion structure. Figure 3 This is a schematic diagram of the structure of the push part and the cage discharge part. Figure 4 This is a schematic diagram of the blanking part structure. Figure 5 This is a schematic diagram of the fixed plate and storage rack structure. Figure 6 This is a schematic diagram of the blanking dial and storage rack structure. Figure 7 This is a schematic diagram of the blanking dial and blanking slider structure. Figure 8 Schematic diagram of the positive part and the sensing part, attached Fig. 9 It is a schematic diagram of the structure of the feeding part.

[0014] Wherein 1 is the material storage part of the retainer, 11 is the material storage rack, and 12 is the fixing plate;

[0015] 2 is a push part, 21 is a push cylinder, 22 is a speed regulating joint, 23 is a floating joint, 24 is a cage loading lifting slide, 25 is a push rail, 26 is a push slider, 27 is a limit anti-tilt plate, 28 is a limit bottom plate, 29 is a limit block, and 210 is a mounting bracket;

[0016] 3 is a blanking part, 31 is a blanking cylinder of a retainer, 32 is a blanking dial, 33 is a blanking chassis, 34 is a slider guide seat, and 35 is a blanking slider;

[0017] 4 is a positive part, 41 is a positive motor, 42 is a positive outer ring, 43 is a positive inner ring, 431 is a support plate, 44 is a connecting plate, and 45 is a support plate bracket;

[0018] 5 is a cage;

[0019] 6 is the feeding part, 61 is the feeding cylinder, 62 is the cage transport drag chain, 63 is the feeding slider, 64 is the feeding guide rail, 65 is the drag chain, and 66 is the speed regulating joint;

[0020] 7 is a detection part, 71 is a through-reflection switch, 72 is a diffuse reflection switch, 73 is a retaining frame in place detection switch bracket I, and 74 is a retaining frame in place detection switch bracket II. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

[0022] The present invention discloses a bearing cage feeding device, which comprises a cage storage part 1, a pushing part 2, a blanking part 3, a positioning part 4, a feeding part 6 and a detection part 7. The positional relationship between the above-mentioned parts is shown in the attached Figure 1 .

[0023] The retainer storage part 1 comprises a storage rack 11 , the upper opening of which is open and fixedly connected to a fixed plate 12 , and a blanking part 3 is arranged at the blanking opening of the storage rack 11 .

[0024] The blanking part 3 is driven by a holder blanking cylinder 31 . In one beat of the production line, the holder blanking cylinder 31 moves once, and a holder 5 falls from the blanking opening of the storage rack 11 .

[0025] The blanking part 3 provided in the present device includes a blanking dial 32 arranged transversely, the opening of the blanking dial 32 is connected to a blanking slider 35, and the blanking dial 32 is connected to a holder blanking cylinder 31. When the blanking dial 32 is driven by the holder blanking cylinder 31 and is in a blanking state, the internal space enclosed by the blanking dial 32 and the blanking slider 35 is larger than the outer diameter of the holder. When the blanking dial 32 is in a clamping state driven by the holder blanking cylinder 31, the internal space enclosed by the blanking dial 32 and the blanking slider is smaller than the outer diameter of the holder. In this way, through the cooperation of the blanking slider 35 and the blanking dial 32, the holder is transported from the storage rack 11 to the positive bearing of the positive part. After the holder is clamped, the pushing part will control the storage rack to move upward to ensure that only one holder is obtained in the positive part.

[0026] The pushing part 2 includes a pushing cylinder 21, which acts on the fixed plate 12. The fixed plate 12 is also connected to a pushing slider 26. The pushing slider 26 cooperates with a pushing slide rail 25 fixed on the mounting bracket 210 and can move on the pushing slide rail 25. The end of the piston rod of the pushing cylinder 21 is connected to a floating joint 23. The piston rod of the pushing cylinder 21 acts on one end of the fixed plate 12 through the floating joint 23. The other end of the fixed plate 12 fixes the storage rack. The pushing cylinder 21 is provided with a speed regulating joint 22. The pushing cylinder 21 can be a thin cylinder. The pushing cylinder 21 controls the expansion and contraction of the floating joint 23, driving the material discharging part 1 of the retaining rack to move along the direction of the pushing slide rail 25.

[0027] The positioning part 4 includes a positioning motor 41 and a positioning bearing, and the positioning bearing includes a positioning inner ring 43 and a positioning outer ring 42. A retainer accommodating space is formed between the positioning inner ring 43 and the positioning outer ring 42. The retainer 5 output from the material drop opening of the storage rack controlled by the pushing part 2 enters downward into the positioning bearing, that is, between the positioning inner ring 43 and the positioning outer ring 42. Since the power of the output shaft of the positioning motor 41 is transmitted to the positioning inner ring, the positioning inner ring 43 will rotate under the drive of the positioning motor 41, and the positioning of the retainer is realized during the rotation.

[0028] The feeding part 6 includes a feeding drive component, which transports the holder after the alignment to the next station through the feeding part. Specifically, the feeding drive component is connected to the alignment part, and the feeding drive component drives the alignment part to move together. The feeding drive component selected in this device is a feeding cylinder 61, and the piston rod of the feeding cylinder 61 is connected to the support plate bracket 45 of the alignment part. The support plate bracket 45 is connected to a feeding slide 63, and the feeding slide 63 is matched on a feeding guide rail 64. The alignment part 4 is output to the next station under the drive of the feeding cylinder 61. After the holder is clamped by the next station, it is reset under the drive of the feeding cylinder 61 and continues to be transported to the next holder.

[0029] The detection part 7 includes a through-beam switch 71 and a diffuse reflection switch 72 located beside the right-position bearing. The right-position motor 41 rotates and cooperates with the diffuse reflection switch 72 to detect whether the holder is in the right position. The through-beam switch 71 can detect whether the holder has been transported to the right-position bearing. A holder in-place detection switch bracket is provided near the conveying route of the holder 5. In this device, a holder in-place detection switch bracket I 73 and a holder in-place detection switch bracket II 74 are provided respectively. A holder in-place detection switch is installed on the holder in-place detection switch bracket. The detection switch sends a detection signal to realize the in-place detection of the holder.

[0030] The working process of this device is:

[0031] 1) Place the retainer into the storage rack 11;

[0032] 2) Push the cylinder 21 to control the upward and downward movement of the cage storage rack. When moving downward, the cage blanking cylinder 31 opens, and the bottom cage of the storage rack 11 is transported downward to the positive position. When moving upward, the cage blanking cylinder 31 clamps the second to last cage;

[0033] 3) After the detection part 7 detects that the retainer is transported to the aligning bearing, the aligning part rotates to align, and the detection part detects that the retainer is aligned, the aligning part stops rotating, and the position of the retainer is fixed.

[0034] 4) After the cage in-place detection switch senses that the cage is in a fixed position, the feeding part drives the cage to move to the next station, the next station grabs the cage, and the feeding part returns again.

[0035] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A bearing cage loading device, comprising a cage storage part, a pushing part, a blanking part, a feeding part and a positioning part, wherein the storage part comprises a storage rack, and the storage rack is fixed on a fixed plate, characterized in that: A blanking part is arranged at the blanking port of the storage rack, and the blanking part is driven by a blanking cylinder of the retaining rack; the pushing part includes a pushing cylinder, and the pushing cylinder acts on a fixed plate, and the fixed plate is also connected to a pushing slider; the alignment part includes an alignment motor and an alignment bearing, and the alignment bearing includes an alignment inner ring and an alignment outer ring, and a retaining rack accommodating space is formed between the alignment inner ring and the alignment outer ring; the feeding part includes a feeding driving component, and the feeding driving component is connected to the alignment part; the loading device also includes a detection part, and the detection part includes a beam switch and a diffuse reflection switch located beside the alignment bearing; The material part includes a laterally arranged blanking dial, the opening of which is connected to a blanking slider, and the blanking dial is connected to a blanking cylinder of a retaining frame. When the blanking dial is driven by the blanking cylinder of the retaining frame and is in a blanking state, an internal space enclosed by the blanking dial and the blanking slider is larger than an outer diameter of the retaining frame; when the blanking dial is in a clamping state driven by the blanking cylinder of the retaining frame, an internal space enclosed by the blanking dial and the blanking slider is smaller than an outer diameter of the retaining frame; the detection part includes a retaining frame in-place detection switch bracket arranged near a retaining frame conveying route, and a retaining frame in-place detection switch is mounted on the retaining frame in-place detection switch bracket.

2. The bearing retainer feeding device according to claim 1, characterized in that: The end of the piston rod of the pushing cylinder is connected to a floating joint, and the piston rod of the pushing cylinder acts on the fixed plate through the floating joint.

3. The bearing retainer feeding device according to claim 1, characterized in that: The feeding driving component is a feeding cylinder, a piston rod of the feeding cylinder is connected to the support plate bracket of the alignment part, and the alignment bearing is connected to the support plate bracket.

4. The bearing retainer feeding device according to claim 3, characterized in that: The feeding part also includes a feeding slide block connected to the supporting plate bracket, and the feeding slide block is matched on the feeding guide rail.

Images