A method and device for automatically filling rollers in a fully loaded roller bearing

Abstract

The present invention belongs to the field of automatic bearing assembly, and specifically relates to a method and device for automatically filling rollers in a fully loaded roller bearing. It is used to fill rollers into the outer shell raceway of the bearing, and includes an apparatus table, which includes a material transport system, a conveying device, an automatic filling mechanism, a positioning and rotating system, and a control system. The material transport system is used to sort and organize the rollers, and the sorted and organized rollers are transported to the automatic filling mechanism through the conveying device. The automatic filling mechanism fills the rollers into the raceway of the bearing outer shell located on the positioning and rotating system. The positioning and rotating system is used to position the bearing outer shell to be processed and drive it to rotate; the automatic filling mechanism and the positioning and rotating system are both electrically connected to the control system. The present invention solves the problem of automatic roller filling, improves the degree of automation of automatic roller filling, and improves production efficiency.

Description

Technical Field

[0001] The invention belongs to the field of automatic bearing assembly, and in particular relates to a method and a device for automatically filling rollers in a full-fill roller bearing. Background Art

[0002] Roller bearings are a type of rolling bearings and are one of the components widely used in modern machinery. They rely on rolling contact between the main components to support rotating parts. They have the advantages of small starting torque, high rotation accuracy, and convenient selection. They include inner rings, outer rings, cages and rollers. The rollers are installed in the pockets of the cage and contact the inner rings and outer rings. The raceways on the inner rings and outer rings limit the axial ends of the rollers, and the side walls of the pockets limit the circumferential direction of the rollers. When installing the current cylindrical roller bearings, most of them insert the high-speed shaft into the inner ring. During the rotation process, the inner ring drives the rollers to rotate, and the rollers drive the cage to rotate. Both revolve around the inner ring and rotate themselves. In the prior art, it has always been a difficult problem to automatically fill rollers in roller bearings. Roller installation involves the selection of rollers and the adjustment of their postures. How to smoothly enter the rollers into the raceways of the bearings is difficult to achieve, which restricts the development of automatic assembly technology, affects the performance of automatic assembly technology, and reduces production efficiency. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention aims to provide an automatic roller filling device for a fully loaded roller bearing with a simple structure and a high degree of automation, which can smoothly push the rollers into the raceway of the bearing while screening and adjusting the rollers.

[0004] The technical solution provided by the present invention is: an automatic roller filling device for a fully loaded roller bearing, which is used to fill rollers into the outer shell raceway of the bearing, comprising an apparatus table, which includes a material transport system, a conveying device, an automatic filling mechanism, a positioning and rotating system and a control system, wherein the positioning and rotating system is embedded and installed in the apparatus table, and the automatic filling mechanism is located above the positioning and rotating system and is fixedly installed on the apparatus table by a bracket; the material transport system is used to sort and organize the rollers, and the sorted and organized rollers are transported to the automatic filling mechanism through the conveying device, and the automatic filling mechanism fills the rollers into the raceway of the bearing outer shell located on the positioning and rotating system, and the positioning and rotating system is used to position the bearing outer shell to be processed and drive it to rotate; the automatic filling mechanism and the positioning and rotating system are both electrically connected to the control system, and the control system is used to control the filling mechanism and the positioning and rotating system.

[0005] Further optimization and improvement of the above scheme: the material transport system is a roller vibrating plate. The roller vibrating plate can screen the rollers, and the screened qualified rollers enter the conveying device through the roller outlet.

[0006] The above scheme is further optimized and improved: the conveying device includes a conveying hose and a rigid feed pipe located at one end of the conveying hose, the other end of the conveying hose is fixedly connected to the roller outlet of the roller vibrating plate, and the rigid feed pipe is vertically fixed on the automatic filling mechanism; a sensor is installed at the bottom end of the rigid feed pipe; a plurality of rigid short tubes are sheathed on the outside of the conveying hose, and a rigid short tube is specially sheathed at the connection between the conveying hose and the rigid feed pipe. After the roller enters the conveying hose, it moves forward under its own gravity and the push of the roller that enters later. After entering the rigid conveying pipe, it quickly falls to the reserved position. For the cylindrical roller, its state in the rigid conveying pipe is adjusted to an upright state, which is the same as the state in the bearing raceway; the sensor located at the bottom end of the rigid feed pipe is used to sense the presence of the roller and send relevant signals to the control system; by setting a rigid short tube, the strength of the hose can be enhanced to a certain extent, so that the roller can move smoothly downward inside it, and a rigid short tube is set at the connection between the conveying hose and the rigid feed pipe to avoid bending at the connection between the two, which makes it impossible for the roller to smoothly enter the rigid feed pipe from the conveying hose. By setting a rigid short tube at the connection, the bent part can be trimmed into a flat straight tube, so that the roller can smoothly enter the rigid feed pipe from the conveying hose.

[0007] Further optimization and improvement of the above scheme: the automatic filling mechanism is provided with a workbench and a slide rail cylinder driving the workbench to move up and down along the slide rail, and the slide rail is fixedly connected to the bracket through a connecting block. The slide rail cylinder is used to align the automatic filling mechanism with the raceway of the bearing, and when the roller filling is completed, the automatic filling mechanism is returned to the initial position.

[0008] Further optimization and improvement of the above scheme: a transverse through groove is provided in the middle of the workbench, a push rod is slidably installed in the transverse through groove, the push rod is L-shaped, the upper part of the push rod is fixedly connected to the cylinder rod of the push cylinder, the lower part of the push rod is located in the receiving platform, the upper end surface of the receiving platform is fixedly connected to the lower end surface of the workbench, a transverse slide rail is provided in the receiving platform, the transverse slide rail runs through the inside of the receiving platform, and the push rod reciprocates on the transverse slide rail driven by the push cylinder. The push rod driven by the push cylinder moves in the direction of the arranged rollers, and then pushes the arranged rollers into the raceway of the bearing. The receiving platform can be disassembled and replaced according to the specifications of the rollers, which increases the function of the entire device.

[0009] Further optimization and improvement of the above scheme: a protective device is fixedly installed between the end of the cylinder rod close to the push rod and the push rod, and the protective device is a flexible steel belt, and the flexible steel belt is clamped on both sides of the push rod in a U shape. The protective device moves in the direction of the arranged rollers together with the cylinder rod. When the push rod pushes the rollers, the protective device can have a certain buffering effect on the thrust generated by the push rod, which can avoid damage to the bearing raceway caused by excessive thrust, resulting in reduced product quality.

[0010] Further optimization and improvement of the above scheme: the rigid feed pipe is fixed on the workbench and is located at one end of the transverse through groove away from the push cylinder; on one side of the rigid feed pipe, the transverse slide rail, the transverse through groove and the interior of the rigid feed pipe are vertically intertwined, and when the push cylinder is in the initial position, the end of the push rod close to the rigid feed pipe reserves a gap for the roller to pass through. For the ball roller, the width of the gap is equal to the diameter of the ball, and for the cylindrical roller, the gap is the position occupied by the cylindrical roller when it stands up, that is, the width of the gap is equal to the outer diameter of the cylinder.

[0011] Further optimization and improvement of the above scheme: the positioning rotation system includes a positioning rotating disk and a driving motor located below the positioning rotating disk, the driving motor is connected to a motor encoder for detecting the rotation angle of the positioning rotating disk, a mounting block is fixed below the positioning rotating disk, the mounting block and the driving motor are connected by a valve, and the motor is used to drive the positioning rotating disk and control its rotation angle. The positioning rotation system accurately controls the rotation angle of the positioning rotating disk, and the roller accurately enters the predetermined position in the raceway, thereby improving the accuracy and quality of the product. The positioning rotating disk can be replaced according to the size of the bearing housing and is detachable.

[0012] Further optimization and improvement of the above scheme: the inner wall edge of the positioning rotating disk is a convex structure, and the convex structure is matched with the bearing shell. The convex structure can avoid the phenomenon of inaccurate filling caused by displacement of the bearing shell.

[0013] A method for automatically filling rollers in a full-complement roller bearing, characterized in that it comprises the following steps:

[0014] (1) Fix the positioning rotating disk on the drive motor.

[0015] (2) Fill the raceway of the bearing housing with grease using a grease filling device.

[0016] (3) Place the bearing housing filled with grease on the positioning rotating plate.

[0017] (4) Start the slide cylinder to drive the workbench to move downward until the transverse slide is aligned with the bearing raceway.

[0018] (5) Start the roller vibrating plate, which will transport the screened rollers to the conveying hose through the roller outlet. The rollers that continuously enter the roller outlet push the rollers in the conveying hose into the rigid feed pipe. The rollers that enter the rigid feed pipe fall into the gap between the rollers at one end of the push rod near the rigid feed pipe under their own gravity. At this time, the sensor senses the roller passing through and sends a signal to the control system. After receiving the signal, the control system sends a signal to the automatic filling mechanism. The push cylinder drives the push rod to push the roller in the gap into the raceway of the bearing. Driven by the push cylinder, the roller returns to the initial position. The control system starts the drive motor to rotate at a predetermined angle. After rotating to the predetermined angle, the drive motor stops moving. The push rod in the automatic filling mechanism pushes the roller into the raceway again. This cycle repeats until the raceway of the bearing is finally filled.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] After the rollers are screened by the roller vibrating plate, they are transported to the automatic filling mechanism through the conveying device by their own gravity. After the rollers pass through the conveying device, especially the cylindrical rollers, they are adjusted to an upright state through the rigid feeding pipe. The upright cylindrical rollers are pushed into the raceway of the bearing through the push rod. Because the raceway width of the bearing has a tolerance, a certain thrust is required when the rollers are filled in. In order to prevent the rollers from damaging the bearing raceway mouth due to excessive thrust during filling and causing bruises, a protective device is set up. The protective device has a buffering performance and can avoid the occurrence of damage to the bearing hob cutter mouth. During the filling process, the rotating positioning plate cooperates with it to ensure the smooth completion of the filling process. The entire device has a simple structure, a reasonable construction, and a high degree of automation, which effectively solves the problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a side view of the present invention.

[0022] Figure 2 This is the formal diagram of the present invention.

[0023] Figure 3 It is a side cross-sectional view of the automatic filling structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the workbench structure of the present invention. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 4 As shown, an automatic roller filling device for a fully loaded roller bearing is used to fill rollers into the outer shell raceway of the bearing, including an apparatus table 1, which includes a material transport system 2, a conveying device 3, an automatic filling mechanism 4, a positioning and rotating system 5 and a control system, wherein the positioning and rotating system 5 is embedded and installed in the apparatus table 1, and the automatic filling mechanism 4 is located above the positioning and rotating system 5 and is fixedly installed on the apparatus table 1 through a bracket 6; the material transport system is a roller vibration plate 21, and the material transport system 2 is used to sort and organize the rollers, and the sorted and organized rollers are transported to the automatic filling mechanism 4 through the conveying device 3, and the automatic filling mechanism 4 fills the rollers into the raceway of the bearing shell 8 located on the positioning and rotating system 6, and the positioning and rotating system 6 is used to position the bearing shell 8 to be processed and drive it to rotate; the automatic filling mechanism and the positioning and rotating system are both electrically connected to the control system, and the control system is used to control the filling mechanism and the positioning and rotating system.

[0027] The conveying device 3 includes a conveying hose 31 and a rigid feed pipe 32 located at one end of the conveying hose, the other end of the conveying hose 31 is fixedly connected to the roller outlet of the roller vibrating plate, and the rigid feed pipe 32 is vertically fixed on the automatic filling mechanism 4; a sensor is installed at the bottom end of the rigid feed; a plurality of rigid short tubes 33 are sheathed on the outside of the conveying hose, and a rigid short tube 33 is specially sheathed at the connection between the conveying hose and the rigid feed pipe.

[0028] The automatic filling mechanism 4 is provided with a workbench 41 and a slide rail cylinder 43 for driving the workbench to move up and down along a slide rail 42, and the slide rail 42 is fixedly connected to the bracket 6 through a connecting block 44; a transverse through groove 45 is provided in the middle of the workbench 41, and a push rod 46 is slidably installed in the transverse through groove 45, and the push rod 46 is L-shaped, and the upper part of the push rod 46 is fixedly connected to the cylinder rod 47 of the push cylinder 461, and the lower part of the push rod 46 is located in the receiving platform 48, and the upper end surface of the receiving platform 48 is fixedly connected to the lower end surface of the workbench, and a transverse slide rail 49 is provided in the receiving platform, and the transverse slide rail 49 runs through the inside of the receiving platform 48, and the push rod 46 reciprocates on the transverse slide rail 49 driven by the push cylinder 43; in order to avoid In order to prevent the push rod from having excessive thrust and damaging the raceway of the bearing housing, a protective device 7 is fixedly installed between the end of the cylinder rod 47 close to the push rod 46 and the push rod. The protective device 7 is a flexible steel belt. After the cylinder rod pushes the push rod, it can be used synchronously with the cylinder rod. After the cylinder rod pushes the push rod, it can prevent it from continuing to move too much and damaging the channel of the bearing housing. The flexible steel belt is clamped on both sides of the push rod in a U shape, and through holes are provided at both ends. The push rod is also provided with a through hole, and a bolt passes through the through hole, so that the flexible steel belt is fixedly connected to the push rod in a U shape. A through hole is also provided in the middle position of the flexible steel belt, and the through hole is sleeved on one end of the cylinder rod 47 and fixed by bolts. At this point, the fixed connection between the flexible steel belt, the push rod and the cylinder rod is achieved.

[0029] In order to allow the roller to smoothly fall into the reserved gap, the rigid feed pipe is fixed on the workbench and is located at one end of the transverse through groove away from the push cylinder; on one side of the rigid feed pipe, the transverse slide rail, the transverse through groove and the interior of the rigid feed pipe are vertically intertwined, and when the push cylinder is in the initial position, the push rod is close to the end of the rigid feed pipe to reserve a gap for the roller to pass through. For ball rollers, the width of the gap is equal to the diameter of the ball, and for cylindrical rollers, the gap is the position occupied by the cylindrical roller when it stands up, that is, the width of the gap is equal to the outer diameter of the cylinder.

[0030] In order to improve the mechanization of the device and achieve the purpose of precise filling, a positioning rotation system 5 is also provided, and the positioning rotation system 5 is used to drive the positioning rotating disk to rotate at a preset angle. The positioning rotation system includes a positioning rotating disk 51 and a driving motor 52 located below the positioning rotating disk. The driving motor is connected to a motor encoder for detecting the rotation angle of the positioning rotating disk. A mounting block 53 is fixed below the positioning rotating disk. The mounting block 53 and the driving motor 52 are valve-matched. The motor is used to drive the positioning rotating disk and control its rotation angle. In order to avoid displacement of the positioning rotating disk and affect the accuracy of filling, the inner wall edge portion of the positioning rotating disk is a raised structure, and the raised structure cooperates with the bearing housing.

[0031] A method for automatically filling rollers in a full-complement roller bearing, characterized in that it comprises the following steps:

[0032] (1) Fix the positioning rotating disk on the drive motor.

[0033] (2) Fill the raceway of the bearing housing with grease using a grease filling device.

[0034] (3) Place the bearing housing filled with grease on the positioning rotating plate.

[0035] (4) Start the slide cylinder to drive the workbench to move downward until the transverse slide is aligned with the bearing raceway.

[0036] (5) Start the roller vibrating plate, which will transport the screened rollers to the conveying hose through the roller outlet. The rollers that continuously enter the roller outlet push the rollers in the conveying hose into the rigid feed pipe. The rollers that enter the rigid feed pipe fall into the gap between the rollers at one end of the push rod near the rigid feed pipe under their own gravity. At this time, the sensor senses the roller passing through and sends a signal to the control system. After receiving the signal, the control system sends a signal to the automatic filling mechanism. The push cylinder drives the push rod to push the roller in the gap into the raceway of the bearing. Driven by the push cylinder, the roller returns to the initial position. The control system starts the drive motor to rotate at a predetermined angle. After rotating to the predetermined angle, the drive motor stops moving. The push rod in the automatic filling mechanism pushes the roller into the raceway again. This cycle repeats until the raceway of the bearing is finally filled.

[0037] The technical principle of the present invention is described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the scope of protection of the present invention in any way. Based on the explanations herein, those skilled in the art can associate other specific implementations of the present invention without paying creative labor, and these methods will fall within the scope of protection of the present invention.

Claims

1. An automatic roller filling device for a full-fill roller bearing, used for filling rollers into the outer shell raceway of a bearing, comprising a device platform, characterized in that: It includes a material transport system, a conveying device, an automatic filling mechanism, a positioning and rotating system and a control system. The positioning and rotating system is embedded in the device table, the automatic filling mechanism is located above the positioning and rotating system, and is fixedly installed on the device table through a bracket; the material transport system is used to sort and organize the rollers, and the sorted and organized rollers are transported to the automatic filling mechanism through the conveying device, and the automatic filling mechanism fills the rollers into the raceway of the bearing shell located on the positioning and rotating system, and the positioning and rotating system is used to position the bearing shell to be processed and drive it to rotate; the automatic filling mechanism and the positioning and rotating system are both electrically connected to the control system, and the control The control system is used to control the filling mechanism and the positioning rotation system; the conveying device includes a conveying hose and a rigid feed pipe located at one end of the conveying hose, the other end of the conveying hose is fixedly connected to the roller outlet of the roller vibrating plate, and the rigid feed pipe is vertically fixed on the automatic filling mechanism; a sensor is installed at the bottom end of the rigid feed pipe; a plurality of rigid short tubes are sheathed on the outside of the conveying hose, and a rigid short tube is sheathed at the connection between the conveying hose and the rigid feed pipe; a workbench and a slide rail cylinder driving the workbench to move up and down along the slide rail are provided on the automatic filling mechanism, and the slide rail is fixedly connected to the bracket through a connecting block; a A transverse through groove, in which a push rod is slidably installed, the push rod is L-shaped, the upper part of the push rod is fixedly connected to the cylinder rod of the push cylinder, the lower part of the push rod is located in the receiving platform, the upper end surface of the receiving platform is fixedly connected to the lower end surface of the working table, a transverse slide rail is provided in the receiving platform, the transverse slide rail runs through the inside of the receiving platform, and the push rod reciprocates on the transverse slide rail under the drive of the push cylinder; a protective device is also fixedly installed between the end of the cylinder rod close to the push rod and the push rod, the protective device is a flexible steel belt, and the flexible steel belt is U-shaped and clamped on both sides of the push rod; the rigid feed pipe is fixed on the working table The positioning rotating system comprises a positioning rotating disk and a driving motor located under the positioning rotating disk, the driving motor is connected with a motor encoder for detecting the rotation angle of the positioning rotating disk, a mounting block is fixed under the positioning rotating disk, the mounting block and the driving motor are connected by a valve, and the motor is used to drive the positioning rotating disk and control its rotation angle.

2. The automatic roller filling device for a full-complement roller bearing according to claim 1, characterized in that: The material transport system is a roller vibrating plate.

3. The automatic roller filling device for a full-complement roller bearing according to claim 1, characterized in that: The inner wall edge portion of the positioning rotating disk is a convex structure, and the convex structure matches with the bearing shell.

4. A roller filling method for an automatic roller filling device for a full roller bearing according to any one of claims 1 to 3, characterized in that: The following steps are involved: (1) Fix the positioning rotating disk on the driving motor; (2) Filling grease into the raceway of the bearing housing through a grease filling device; (3) Place the bearing housing filled with grease in the positioning rotating disk; (4) Start the slide cylinder to drive the workbench to move downward until the transverse slide is aligned with the bearing raceway; (5) Start the roller vibrating plate, which will transport the screened rollers to the conveying hose through the roller outlet. The rollers that continuously enter the roller outlet push the rollers in the conveying hose into the rigid feed pipe. The rollers that enter the rigid feed pipe fall into the gap between the rollers at one end of the push rod near the rigid feed pipe under their own gravity. At this time, the sensor senses the roller passing through and sends a signal to the control system. After receiving the signal, the control system sends a signal to the automatic filling mechanism. The push cylinder drives the push rod to push the roller in the gap into the raceway of the bearing. Driven by the push cylinder, the roller returns to the initial position. The control system starts the drive motor to rotate at a predetermined angle. After rotating to the predetermined angle, the drive motor stops moving. The push rod in the automatic filling mechanism pushes the roller into the raceway again. This cycle repeats until the raceway of the bearing is finally filled.

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