CN209830144U - Rolling device for bearing ring forging tooth step - Google Patents

Abstract

The utility model belongs to the technical field of the rolling of bearing ring forging tooth step, the utility model discloses a rolling device of bearing ring forging tooth step, a ring rolling die is sleeved on a mandrel and is pressed and fixed by a pressing part of a pressing arm; the ferrule rolling die comprises an inner cylinder, the inner cylinder is hollow and cylindrical, and the outer wall of the inner cylinder is provided with an outer thread of the inner cylinder through the whole body; the limiting bottom plate is fixedly arranged at the bottom of the inner barrel; the die body is provided with a through hole in the center, and the inner wall of the through hole is provided with internal threads in the whole body; the limiting convex ring is provided with a through hole in the center, and the inner wall of the through hole is provided with a limiting convex ring internal thread through the body; the fixed pressing cover is fixedly arranged at the upper part of the limiting convex ring. The rolling device for the bearing ring forging tooth steps greatly improves the efficiency of processing the bearing ring forging tooth steps, reduces the waste of annular ring forging materials, greatly reduces the stress defect of the bearing ring forging, and prolongs the service life of the bearing ring.

Description

Rolling device for bearing ring forging tooth step

Technical Field

The utility model belongs to the technical field of the system of rolling of bearing ring forging tooth step, concretely relates to system of rolling of bearing ring forging tooth step device.

Background

With the advancement of science and technology and the rapid development of modern equipment manufacturing industry, the demand of the bearing is more and more, and the bearing can not be separated from the function of an automatic device, so that the bearing is a basic part of the automatic device and has a great market demand. The bearing generally comprises an inner ring, an outer ring, a ball and a ferrule, wherein the ferrule is used as a key part of the bearing, so that the service life of the ferrule is prolonged, and the service life of the bearing can be directly prolonged.

In the prior art, the machining of the bearing ring needs to machine tooth steps on the inner side surface of the ring, the machining of the tooth steps of the bearing ring generally adopts a turning process, and the main problems of the machining mode are as follows: 1. a large amount of materials are wasted in the process of turning the steps of the ferrule forging teeth; 2. the ring forging tooth steps are turned, so that the inner side surface of the ring has more stress defects; 3. the turning of the ferrule forging tooth step consumes working hours and has low processing efficiency; the inventor develops a rolling device of bearing ring forging tooth step based on the defects in the prior art, and can well solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technical problem, provide a device of rolling of bearing ring forging tooth step, its structural design is simple, scientific and reasonable, can solve the extravagant problem that has more stress defect of mode processing ring forging tooth step material that adopts the turning, and the turning that has still solved ring forging tooth step simultaneously consumes man-hour, problem that machining efficiency is low. The utility model designs a processing bearing ring forging tooth step's of rolling mould can dismantle the equipment, is applicable to the processing of rolling of any type bearing ring forging tooth step under the cooperation of ring rolling machine. When the die is used for machining the tooth steps of the bearing ring forging, the die is installed on a mandrel of a ring rolling machine, and the bearing ring forging is rolled by the ring rolling machine.

The utility model adopts the technical proposal that: a rolling device for a bearing ring forging tooth step comprises a ring rolling machine, a clamping arm, a driving roller, a mandrel and an arm guide roller; the clamping arm is fixedly arranged at the front side and the rear side of a driving roller of the ring rolling machine, the clamping arm is arc-shaped, and an arm guide roller is fixedly arranged at the right side end part of the clamping arm; the driving roller is fixedly arranged at the central position of the clamping arm and is vertically and fixedly connected with a speed reducer and a driving motor of the ring rolling machine; the mandrel is fixedly arranged at the right side of the driving roller, and the mandrel and the driving roller are arranged in a bilateral symmetry manner; the pressing arm is fixedly arranged at the left side position of the ring rolling machine, the pressing arm is fixedly connected with the sliding frame of the ring rolling machine, and the upper position of the pressing arm is fixedly provided with a pressing part; the axial conical roller is fixedly arranged at the right side position of the ring rolling machine and freely slides left and right on a rack of the ring rolling machine; the ferrule rolling die is sleeved on the mandrel and is pressed and fixed by the pressing part of the pressing arm; the ferrule rolling die comprises an inner cylinder, the inner cylinder is hollow and cylindrical, and the outer wall of the inner cylinder is provided with an outer thread of the inner cylinder through the whole body; the limiting bottom plate is fixedly arranged at the bottom of the inner cylinder and is fixedly connected with the inner cylinder into a whole; the die body is provided with a through hole in the center, the inner wall of the through hole is provided with an internal thread in the whole body, and the die body is screwed on the inner cylinder through the external thread of the inner cylinder; the limiting convex ring is provided with a through hole in the center, the inner wall of the through hole is provided with a limiting convex ring internal thread through the whole body, and the limiting convex ring is sleeved at the upper part of the die body through the internal thread of the through hole in a screwing manner; the fixed pressing cover is fixedly arranged at the upper part of the limiting convex ring.

The pressing arm and the mandrel are fixedly arranged on a sliding frame of the ring rolling machine, and a distance for adjusting the contact interval between the driving roller and the mandrel is arranged between the pressing arm and the mandrel; the compressing part of the compressing arm is correspondingly matched with the mandrel for use, and the compressing part is hollow cylindrical.

The pressing arm is driven by a hydraulic cylinder of the ring rolling machine to lift up and down or descend at the upper position of the mandrel.

The mould body includes body and lower body, and the diameter of going up the body is greater than the diameter of body down, goes up the body and is connected for the arc with the intermediate junction of body down.

The limiting convex ring is matched with the inner barrel external thread of the inner barrel through a limiting convex ring internal thread in the limiting convex ring through hole on the inner barrel, and the up-down position adjustment on the inner barrel is realized.

The fixed pressing cover comprises an annular boss which is fixedly arranged at the upper part of the tightening bolt, and the annular boss and the tightening bolt are fixedly connected into a whole; the thread fixing is arranged on the surface of the tightening bolt, and the tightening clamping grooves are symmetrically arranged on the side wall of the annular convex ring in the front-back direction.

The use process of the rolling device for the bearing ring forging tooth step is as follows: firstly, adjusting the distance between a mandrel and a driving roller through the mandrel of a ring rolling machine and a sliding frame of a pressing arm, so that a high-temperature ring forging to be rolled can be tightly placed between the driving roller and the mandrel, and the ring forging is tightly contacted with a die body of a ring rolling die at the moment; meanwhile, the position of the axial conical roller is adjusted, so that the axial conical roller clamps the right part of the ferrule forging, and the axial conical roller plays a role in supporting the ferrule forging at the moment; then, opening a hydraulic cylinder of the clamping arm to enable the clamping arm to tightly clamp the ferrule forging, and enabling an arm guide roller of the clamping arm to be in close contact with the outer wall of the ferrule forging; at the moment, a motor and a speed reducer of a driving roller of the ring rolling machine are started to enable the driving roller to rotate clockwise, and a driving motor of a mandrel is started to enable the mandrel to rotate anticlockwise, so that the positions of an upper body and a lower body of the ferrule rolling die are in contact with the inner side surface of the ferrule forging to be rolled under the combined action of a clamping arm, the driving roller, the mandrel, a pressing arm and an axial conical roller, and the ferrule rolling die is processed into a tooth step shape required by the bearing ferrule forging; the process is the using process of the rolling device for the bearing ring forging tooth steps.

The method for installing the ring rolling die of the device for rolling the bearing ring forging tooth step comprises the following steps: step one, installation of a die body: firstly, a limiting bottom plate and an inner cylinder are fixedly connected into a whole, then a through hole of a die body is aligned with the inner cylinder, and the die body is screwed to the upper part of the limiting bottom plate by utilizing the occlusion and screwing of the internal thread of the through hole of the die body and the external thread of the inner cylinder; step two, installing a limiting convex ring: after the die body in the step one is installed, aligning the through hole of the limiting convex ring with the inner cylinder, and utilizing the inner thread of the limiting convex ring in the through hole of the limiting convex ring to be meshed and screwed with the outer thread of the inner cylinder so as to screw the limiting convex ring until the limiting convex ring is tightly contacted with the die body; step three, fixing the installation of the pressing cover: after the limiting convex ring in the step two is installed, the screwing bolt for fixing the pressing cover is aligned to the upper central through hole of the limiting convex ring, then the screwing clamping groove on the annular boss is clamped by the wrench to perform screwing action, and the limiting convex ring is fixed firmly by meshing and screwing the threads on the screwing bolt and the internal threads of the limiting convex ring in the limiting convex ring through hole.

The clamping arm is fixedly arranged at the front side and the rear side of a driving roller of the ring rolling machine, the clamping arm is arc-shaped, and an arm guide roller is fixedly arranged at the right side end of the clamping arm; the main purpose of the arrangement is to fix the front and rear positions of the bearing ring forge piece through the arrangement of the clamping arm, so as to prevent the bearing ring forge piece from deviating; so as to avoid influencing the processing precision of the bearing ring.

The driving roller is fixedly arranged at the central position of the clamping arm and is vertically and fixedly connected with a speed reducer and a driving motor of the ring rolling machine; the mandrel is fixedly arranged at the right side of the driving roller, and the mandrel and the driving roller are arranged in a bilateral symmetry manner; the main purpose of the arrangement is to roll the bearing ring by the arrangement of the driving roller and the mandrel under the rotation of the driving roller and the mandrel in opposite directions; therefore, the material of the ring forging is saved, and the rolling processing efficiency of the bearing ring is improved.

The pressing arm is fixedly arranged at the left side position of the ring rolling machine, the pressing arm is fixedly connected with the sliding frame of the ring rolling machine, and the upper position of the pressing arm is fixedly provided with a pressing part; the main purpose of the arrangement is to fix the ring rolling die on the mandrel, prevent the axial movement of the ring forging when the bearing ring is rolled, and improve the processing precision of the bearing ring forging.

The ferrule rolling die is sleeved on the mandrel and is pressed and fixed by the pressing part of the pressing arm; the ring rolling die is a key part for processing a bearing ring, and the inner side surface of a ring forging is rolled into a tooth step shape by the ring rolling die under the combined action of a clamping arm, a driving roller, a mandrel, a pressing arm and an axial conical roller.

The inner cylinder is a hollow cylinder, and the outer wall of the inner cylinder is provided with inner cylinder external threads through the body; the main purpose of setting up like this is in order to realize the adjustment of mould body and spacing bulge loop in the upper and lower position of inner tube, improves the rolling processing to the bearing ring forging of co-altitude not, has improved the adaptability to the bearing ring forging of co-altitude not.

The limiting bottom plate is fixedly arranged at the bottom of the inner cylinder and is fixedly connected with the inner cylinder into a whole; the main purpose of the arrangement is to play a role in limiting the position of the die body and improve the rolling machining precision of the bearing ring forge piece; on the other hand, the stability of the ferrule rolling die can be improved, and the vertical movement of the ferrule rolling die in the axial direction is reduced.

The limiting convex ring is provided with a through hole in the center, the inner wall of the through hole is provided with a limiting convex ring internal thread through the whole body, and the limiting convex ring is sleeved at the upper part of the die body through the internal thread of the through hole in a screwing manner; the main purpose of setting up like this is in order to utilize the free adjustment of spacing bulge loop internal thread at the inner tube upper and lower position of spacing bulge loop to according to the bearing ring forging of co-altitude, adjust the height of spacing bulge loop.

The die body is manufactured in advance according to the design parameters of the ferrule, and the die body can be freely disassembled in the inner barrel so as to be suitable for the installation of the die bodies with different shapes.

The ring rolling machine is mature and commonly used mechanical equipment in the prior art, the driving power of the ring rolling machine is realized by a motor, and meanwhile, the rolling power of a driving roller is improved by a speed reducer; the hydraulic control system of a ring rolling machine is also a commonly used control system, and is a technology which can be obtained by a person skilled in the art by looking up relevant information and technical documents.

The utility model has the advantages that: the technical scheme provides a rolling device for the tooth steps of a bearing ring forging, which has simple structural design, is scientific and reasonable, can solve the problems of material waste and more stress defects in the process of machining a ring channel by adopting a turning mode, and simultaneously solves the problems of working time consumption and low machining efficiency in the turning of the ring channel; the efficiency of processing bearing ring forging tooth step is greatly improved, the waste of annular ring forging material is reduced, the stress defect of the bearing ring forging is greatly reduced, and the service life of the bearing ring is prolonged.

Drawings

FIG. 1 is a schematic structural view of the ring rolling machine of the present invention;

FIG. 2 is a schematic structural view of the ferrule rolling mold of the present invention;

the labels in the figure are: 1. the ring rolling machine comprises a ring rolling machine body 2, a clamping holding arm 3, a driving roller 4, a mandrel 5, a holding arm guide roller 6, a pressing arm 7, a pressing part 8, an axial conical roller 9, a ring rolling die 901, an inner cylinder 902, an inner cylinder external thread, 903, a limiting bottom plate 904, a die body 9041, an upper body 9042, a lower body, 905, a limiting convex ring 906, a limiting convex ring internal thread, 907, a fixed pressing cover, 9071, an annular boss, 9072, a screwing bolt, 9073, a thread, 9074 and a screwing clamping groove.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in the figure, the utility model adopts the technical scheme that: a rolling device for a bearing ring forging tooth step comprises a ring rolling machine 1, a clamping arm 2, a driving roller 3, a mandrel 4 and an arm guide roller 5; the clamping arm 2 is fixedly arranged at the front side and the rear side of a driving roller 3 of the ring rolling machine 1, the clamping arm 2 is arc-shaped, and an arm guide roller 5 is fixedly arranged at the right side end part of the clamping arm 2; the driving roller 3 is fixedly arranged at the central position of the clamping arm 2, and the driving roller 3 is vertically and fixedly connected with a speed reducer and a driving motor of the ring rolling machine 1; the mandrel 4 is fixedly arranged at the right side of the driving roller 3, and the mandrel 4 and the driving roller 4 are arranged in bilateral symmetry; the pressing arm 6 is fixedly arranged at the left side position of the ring rolling machine 1, the pressing arm 6 is fixedly connected with the sliding frame of the ring rolling machine 1, and the upper position of the pressing arm 6 is fixedly provided with a pressing part 7; the axial conical roller 8 is fixedly arranged at the right side of the ring rolling machine 1, and the axial conical roller 8 freely slides left and right on the frame of the ring rolling machine 1; a ferrule rolling die 9 is sleeved on the mandrel 4 and is simultaneously pressed and fixed by a pressing part 7 of a pressing arm 6; the ferrule rolling die 9 comprises an inner cylinder 901, the inner cylinder 901 is hollow and cylindrical, and an inner cylinder external thread 902 is arranged on the outer wall of the inner cylinder 901 in a whole body; the limiting bottom plate 903 is fixedly arranged at the bottom of the inner cylinder 901, and the limiting bottom plate 903 and the inner cylinder 901 are fixedly connected into a whole; the mold body 904 is provided with a through hole as the center, the inner wall of the through hole is provided with an internal thread through the whole body, and the mold body 904 is screwed on the inner cylinder 901 through the inner cylinder external thread 902 of the inner cylinder 901; a through hole is formed in the center of the limiting convex ring 905, a limiting convex ring internal thread 906 is formed in the inner wall of the through hole in a through mode, and the limiting convex ring 905 is sleeved at the upper position of the die body 904 in a screwing mode through the internal thread of the through hole; the fixed pressing cover 907 is fixedly arranged at the upper position of the limiting convex ring 905.

The pressing arm 6 and the mandrel 4 are fixedly arranged on a sliding frame of the ring rolling machine 1, and a distance for adjusting the contact interval between the driving roller 3 and the mandrel 4 is arranged between the pressing arm 6 and the mandrel 4; the pressing portion 7 of the pressing arm 6 is used in cooperation with the mandrel 4, and the pressing portion 7 is hollow and cylindrical.

The pressing arm 6 is driven by a hydraulic cylinder of the ring rolling machine 1 to realize the up-and-down lifting or descending at the upper position of the mandrel 4.

The die body 904 comprises an upper body 9041 and a lower body 9042, the diameter of the upper body 9041 is larger than that of the lower body 9042, and the middle connection position between the upper body 9041 and the lower body 9042 is in arc connection.

The limiting convex ring 905 is matched with the inner cylinder external thread 902 of the inner cylinder 901 through a limiting convex ring internal thread 906 in the through hole of the limiting convex ring 905 on the inner cylinder 901, so that the up-and-down position adjustment on the inner cylinder 901 is realized.

The fixed pressing cover 907 comprises an annular boss 9071, the annular boss 9071 is fixedly arranged at the upper part of the tightening bolt 9072, and the annular boss 9071 and the tightening bolt 9072 are fixedly connected into a whole; the screw threads 9073 are fixedly arranged on the surface of the tightening bolt 9072, and the tightening clamping grooves 9074 are symmetrically arranged on the side wall of the annular convex ring 9071 in the front-back direction.

The use process of the rolling device for the bearing ring forging tooth step is as follows: firstly, the distance between the mandrel 4 and the driving roller 3 is adjusted through the mandrel 4 of the ring rolling machine 1 and the sliding frame of the pressing arm 6, so that a high-temperature ring forging to be rolled can be tightly placed between the driving roller 3 and the mandrel 4, and the ring forging is tightly contacted with the die body 904 of the ring rolling die 9; meanwhile, the position of the axial tapered roller 8 is adjusted, so that the axial tapered roller 8 clamps the right part of the ferrule forging, and the axial tapered roller 8 plays a supporting role on the ferrule forging at the moment; then, opening a hydraulic cylinder of the clamping arm 2 to enable the clamping arm 2 to tightly hold the ferrule forging, and enabling an arm guide roller 5 of the clamping arm 2 to be in close contact with the outer wall of the ferrule forging; at the moment, a motor and a speed reducer of a driving roller 3 of the ring rolling machine 1 are started to enable the driving roller 3 to rotate clockwise, and meanwhile, a driving motor of a mandrel 4 is started to enable the mandrel 4 to rotate anticlockwise, so that the positions of an upper body 9041 and a lower body 9042 of a ring rolling die 9 are in contact with the inner side surface of a ring rolling piece to be rolled through the combined action of a clamping arm 2, the driving roller 3, the mandrel 4, a pressing arm 6 and an axial conical roller 8, and the ring rolling die is processed into a tooth step shape required by a bearing ring rolling piece; the process is the using process of the rolling device for the bearing ring forging tooth steps.

The method for installing the ring rolling die of the device for rolling the bearing ring forging tooth step comprises the following steps: step one, installation of a die body: firstly, a limiting bottom plate 903 and an inner cylinder 901 are fixedly connected into a whole, then a through hole of a die body 904 is aligned with the inner cylinder 901, the through hole internal thread of the die body 904 is meshed and screwed with an inner cylinder external thread 902 of the inner cylinder 901, and the die body 904 is screwed to the upper position of the limiting bottom plate 903; step two, installing a limiting convex ring: after the die body 904 in the first step is installed, aligning a through hole of the limit convex ring 905 with the inner cylinder 901, engaging and screwing a limit convex ring internal thread 906 in the through hole of the limit convex ring 905 with an inner cylinder external thread 902 of the inner cylinder 901, and screwing the limit convex ring 905 until the limit convex ring is tightly contacted with the die body 904; step three, fixing the installation of the pressing cover: after the limit convex ring 905 in the second step is installed, the screwing bolt 9072 of the fixed pressing cover 907 is aligned to the upper central through hole of the limit convex ring 905, then the screwing clamping groove 9704 on the annular boss 9071 is clamped by a wrench to perform screwing action, and the limit convex ring 905 is fixed firmly by engaging and screwing the thread 9073 on the screwing bolt 9072 with the limit convex ring internal thread 906 in the through hole of the limit convex ring 905.

Claims (6)

1. A rolling device for a bearing ring forging tooth step comprises a ring rolling machine, a clamping arm, a driving roller, a mandrel and an arm guide roller; the clamping arm is fixedly arranged at the front side and the rear side of a driving roller of the ring rolling machine, the clamping arm is arc-shaped, and an arm guide roller is fixedly arranged at the right side end part of the clamping arm; the driving roller is fixedly arranged at the central position of the clamping arm and is vertically and fixedly connected with a speed reducer and a driving motor of the ring rolling machine; the mandrel is fixedly arranged at the right side of the driving roller, and the mandrel and the driving roller are arranged in a bilateral symmetry manner; the pressing arm is fixedly arranged at the left side position of the ring rolling machine, the pressing arm is fixedly connected with the sliding frame of the ring rolling machine, and the upper position of the pressing arm is fixedly provided with a pressing part; the axial conical roller is fixedly arranged at the right side position of the ring rolling machine and freely slides left and right on a rack of the ring rolling machine; the method is characterized in that: the ferrule rolling die is sleeved on the mandrel and is pressed and fixed by the pressing part of the pressing arm; the ferrule rolling die comprises an inner cylinder, the inner cylinder is hollow and cylindrical, and the outer wall of the inner cylinder is provided with an outer thread of the inner cylinder through the whole body; the limiting bottom plate is fixedly arranged at the bottom of the inner cylinder and is fixedly connected with the inner cylinder into a whole; the die body is provided with a through hole in the center, the inner wall of the through hole is provided with an internal thread in the whole body, and the die body is screwed on the inner cylinder through the external thread of the inner cylinder; the limiting convex ring is provided with a through hole in the center, the inner wall of the through hole is provided with a limiting convex ring internal thread through the whole body, and the limiting convex ring is sleeved at the upper part of the die body through the internal thread of the through hole in a screwing manner; the fixed pressing cover is fixedly arranged at the upper part of the limiting convex ring.

2. The device of claim 1, wherein the device comprises: the pressing arm and the mandrel are fixedly arranged on a sliding frame of the ring rolling machine, and a distance for adjusting the contact interval between the driving roller and the mandrel is arranged between the pressing arm and the mandrel; the compressing part of the compressing arm is correspondingly matched with the mandrel for use, and the compressing part is hollow cylindrical.

3. The device of claim 1, wherein the device comprises: the pressing arm is driven by a hydraulic cylinder of the ring rolling machine to realize the up-and-down lifting or descending at the upper part of the mandrel.

4. The device of claim 1, wherein the device comprises: the mould body includes body and lower body, and the diameter of going up the body is greater than the diameter of body down, and the intermediate junction department of going up body and lower body is the arc connection.

5. The device of claim 1, wherein the device comprises: the limiting convex ring is matched with the inner barrel external thread of the inner barrel through the limiting convex ring internal thread in the limiting convex ring through hole on the inner barrel, and the up-down position adjustment on the inner barrel is realized.

6. The device of claim 1, wherein the device comprises: the fixed pressing cover comprises an annular boss which is fixedly arranged at the upper part of the tightening bolt, and the annular boss and the tightening bolt are fixedly connected into a whole; the thread fixing is arranged on the surface of the tightening bolt, and the tightening clamping grooves are symmetrically arranged on the side wall of the annular convex ring in the front-back direction.