阅读说明：本技术 一种系列圆锥轴承内圈一件流车加工工艺 (Series conical bearing inner ring one-piece flow turning machining process ) 是由 王景虎 王恩来 陈音 邱雁淩 罗芳莉 王忠阳 肖壮勇 于 2020-10-23 设计创作，主要内容包括：本发明的名称为一种系列圆锥轴承内圈一件流车加工工艺。属于轴承内圈车加工技术领域。它主要是解决现有加工方法存在生产工序长、生产效率低和劳动强度高等问题。它的主要特征是：夹持系统弹出机构通过外圆环将弹出爪连为一体,弹出爪上沿半径方向设有多于一个的安装孔,夹持爪的夹持端面形状与工件倒角部位形状匹配,安装在弹出爪上；通过夹持系统弹出机构将圆锥轴承内圈毛坯锻件送至第一数控车床一序依次完成车滚道、车内倒角、车背端面和车装配倒角,将内圈加工件取出并送至第二数控车床二序依次完成车外径、车外倒角和车内倒角。本发明主要用于外径φ40～200mm、高度10～50 mm和内孔φ20～150 mm的系列圆锥轴承内圈的大批量生产。(The invention discloses a series conical bearing inner ring one-piece flow turning machining process. Belongs to the technical field of bearing inner ring turning. The processing method mainly solves the problems of long production process, low production efficiency, high labor intensity and the like of the existing processing method. It is mainly characterized in that: the clamping system ejection mechanism integrates the ejection claws into a whole through the outer circular ring, more than one mounting hole is arranged on the ejection claws along the radius direction, and the shape of the clamping end surface of each clamping claw is matched with the shape of the chamfer part of the workpiece and is mounted on the ejection claws; and conveying the blank forging of the inner ring of the conical bearing to a first numerical control lathe through a clamping system ejection mechanism to sequentially complete the turning of the rolling way, the turning of the inner chamfer, the turning of the back end surface and the turning of the assembly chamfer, and taking out the inner ring machined part and conveying the inner ring machined part to a second numerical control lathe to sequentially complete the turning of the outer diameter, the turning of the outer chamfer and the turning of the inner chamfer. The method is mainly used for mass production of series conical bearing inner rings with the outer diameter phi of 40-200 mm, the height of 10-50 mm and the inner hole phi of 20-150 mm.)

1. A series of conical bearing inner rings one-piece flow turning machining process is characterized in that: the automatic connection method comprises the following steps that a numerical control lathe truss consisting of two numerical control lathes, a T-shaped truss, a rotary material warehouse and a turn-over mechanism is adopted for automatic connection, a clamping system equipped for the T-shaped truss comprises two sets of clamping system popping mechanisms which are installed in parallel, each clamping system popping mechanism comprises a popping claw, a clamping claw and a popping rod, each popping claw comprises an outer circular ring and a straight strip plate arranged along the radius direction of the outer circular ring, more than one guide hole is formed in the straight strip plate along the radius direction, each popping rod is installed on each guide hole, the shape of the clamping end face of each clamping claw is consistent with the shape of a workpiece chamfering part, and the clamping end face of each clamping claw is installed; the process comprises the following steps:

(1) manually placing the blank forged piece of the inner ring of the conical bearing on a feeding disc of a rotary material warehouse, respectively clamping 1 blank forged piece of the inner ring by two clamping system ejection mechanisms, then sending the blank forged piece to a first numerical control lathe, and clamping 1 blank forged piece of the inner ring;

(2) a first step of: the first numerical control lathe finishes lathing the raceway, lathing the inner chamfer, lathing the back end face and lathing the assembly chamfer in sequence;

(3) taking out the inner ring machined part finished in the first step by the clamping system pop-up mechanism, clamping another 1 inner ring blank forged part on a first numerical control lathe, conveying the inner ring machined part finished in the first step to a turn-over mechanism, and conveying the inner ring machined part to a second numerical control lathe after turn-over clamping;

(4) and a second step: the second numerically controlled lathe finishes the turning of the outer diameter, the chamfering outside the vehicle and the chamfering inside the vehicle in sequence; meanwhile, another 1 inner ring blank forging piece is pressedCarrying out first-order processing;

(5) the clamping system ejection mechanism takes out the inner ring machined part finished in the second step and sends the inner ring machined part to a feeding disc to finish machining of the inner ring of the conical bearing; meanwhile, the clamping system ejection mechanism clamps the 3 rd inner ring blank forging and sends the blank forging to a first numerical control lathe, and the process is repeated and circulated in the way.

2. The process of one-piece flow turning of the inner rings of the series of conical bearings according to claim 1, wherein the process comprises the following steps: the three straight strip plates are uniformly distributed, one end of each straight strip plate is connected with the inner circle of the outer circular ring, and the other end of each straight strip plate is an open end; 3 groups of guide holes are arranged on the straight strip plate along the radius direction, wherein the guide holes on the inner side correspond to the clamping of a workpiece within the inner diameter range of 20-80 mm; the middle guide hole is corresponding to the clamping of a workpiece within the inner diameter range of 80-120 mm; the guide hole at the outer side corresponds to the clamping of the workpiece within the inner diameter range of 120-150 mm; the height of the clamping claw is consistent with that of the inner ring of the conical bearing.

3. The series of conical bearing inner rings one-piece flow turning process according to claim 2, characterized in that: selecting a clamping claw which is consistent with the shape and the height of a chamfer part of an inner cone bearing inner ring within the inner diameter range of 120-; the process of the step (1) comprises the following steps:

(1) manually placing the conical bearing inner ring blank forged piece with the outer diameter phi of 160-200 MM, the height of 35-50 MM and the inner diameter phi of 120-150MM on a feeding disc of a rotary material warehouse, respectively clamping 1 inner ring blank forged piece by two clamping system ejection mechanisms, then conveying the inner ring blank forged piece to a first numerical control lathe, and clamping 1 inner ring blank forged piece.

4. The series of conical bearing inner rings one-piece flow turning process according to claim 2, characterized in that: selecting a clamping claw which is consistent with the shape and the height of a chamfer part of an inner cone bearing inner ring within the inner diameter range of 80-120mm to be arranged on a base body, and arranging an ejection rod on a guide hole in the middle; the process of the step (1) comprises the following steps:

(1) manually placing the conical bearing inner ring blank forged piece with the outer diameter phi of 100-160 MM, the height of 20-35 MM and the inner diameter phi of 80-120MM on a feeding disc of a rotary material warehouse, respectively clamping 1 inner ring blank forged piece by two clamping system ejection mechanisms, then conveying the inner ring blank forged piece to a first numerical control lathe, and clamping 1 inner ring blank forged piece.

5. The series of conical bearing inner rings one-piece flow turning process according to claim 2, characterized in that: selecting a clamping claw which is consistent with the shape and the height of a chamfer part of an inner cone bearing inner ring within the inner diameter range of 20-80mm to be installed on a base body, and installing an ejection rod on a guide hole on the inner side; the process of the step (1) comprises the following steps:

(1) manually placing the conical bearing inner ring blank forged piece with the outer diameter phi of 40-100 MM, the height of 10-20 MM and the inner diameter phi of 20-80MM on a feeding disc of a rotary material warehouse, respectively clamping 1 inner ring blank forged piece by two clamping system ejection mechanisms, then conveying the inner ring blank forged piece to a first numerical control lathe, and clamping 1 inner ring blank forged piece.

Technical Field

The invention belongs to the technical field of turning of inner rings of conical bearings, and particularly relates to a series of inner rings of conical bearings, which are turned in a one-piece mode.

Background

At present, the inner ring of the conical bearing is mainly processed by a conventional process, and the process flow of the inner ring processed by the conventional process is as follows: the blank is the forging, and external diameter phi 40 ~ 200mm, height 10 ~ 50mm, hole phi 20 ~ 150mm, the old process flow of inner circle: the first process (copying lathe), boring, chamfering in the lathe, back end face → second process (copying lathe), rough contour, front end face of the vehicle, chamfering outside the vehicle, chamfering in the lathe → third process (double-end face grinding machine), soft back end face → fourth process (copying lathe), fine contour, back end face flange of the vehicle, front end flange of the vehicle, chamfering outside the vehicle → fifth process (hydraulic lathe), big and small skip groove → sixth process (hydraulic lathe), and chamfering of the vehicle assembly. The method has the disadvantages that the production period is long, the production efficiency is low, the personal labor intensity is high and industrial injuries are easy to occur due to the long process flow, manual loading and unloading and multiple times of carrying by a trolley; secondly, the clamping times are multiple, the positioning reference is not uniform, the product precision is lower, the mechanical stress is large, and the deformation is large after heat treatment; when a product is machined by a copying hydraulic lathe, oil cooling is adopted, the environment is polluted, and the process leakage phenomenon is easy to occur.

The truss automatic connection line of the existing numerical control lathe capable of machining medium and large products in China is composed of two numerical control lathes, a T-shaped truss, a rotary material warehouse, a turnover mechanism and the like, is responsible for taking out a workpiece to be machined from the rotary material warehouse and transferring the workpiece to an adjacent numerical control lathe for machining, transfers the workpiece to the turnover mechanism for turnover after machining is finished, transfers the workpiece to be machined after turnover to another adjacent numerical control lathe for machining by a clamping system, and transfers the workpiece to the rotary material warehouse after machining is finished.

The existing clamping system comprises an ejecting claw 1, a clamping claw 2 and an ejecting rod 5, wherein the ejecting claw 1 is of a three-claw structure with the middle being interactive and the outer end being open, a guide hole 3 is formed in the concentric circle of the three claws only on the outer side of the three claws, and the ejecting rod 5 is installed on the guide hole 3, as shown in fig. 1, the adjustment range of a chuck is limited, and the minimum clamping range is more than 120mm of the inner diameter of an inner ring product 4. The clamping jaw 2 is not suitable for clamping series conical bearing outer ring blank forgings as shown in figures 2 and 3, and the large chamfer angle product of the series conical bearing outer ring blank forgings is often clamped due to the fact that the stress area is small, the clamping force is insufficient, clamping cannot be achieved, or potential safety hazards such as swinging and moving appear in the operation process. And a large part of the inner diameter of the serial conical bearing outer ring blank forgings is below 120mm, so that the serial conical bearing outer ring blank forgings cannot be used for automatic online processing production of a numerical control lathe truss.

Disclosure of Invention

The invention aims to provide a series of conical bearing inner rings one-piece flow turning processing technology aiming at the defects, a numerical control lathe truss capable of processing medium and large-sized products is adopted for automatic connection, the processing production of the series of conical bearing inner rings with the inner holes of phi 20-150mm is realized, the product quality and the production efficiency are improved, the labor intensity of workers is reduced, and industrial accidents caused by manual feeding and discharging can be effectively prevented.

The technical solution of the invention is as follows: a series of conical bearing inner rings one-piece flow turning machining process is characterized in that: the automatic connection method comprises the following steps that a numerical control lathe truss consisting of two numerical control lathes, a T-shaped truss, a rotary material warehouse and a turn-over mechanism is adopted for automatic connection, a clamping system equipped for the T-shaped truss comprises two sets of clamping system popping mechanisms which are installed in parallel, each clamping system popping mechanism comprises a popping claw, a clamping claw and a popping rod, each popping claw comprises an outer circular ring and a straight strip plate arranged along the radius direction of the outer circular ring, more than one guide hole is formed in the straight strip plate along the radius direction, each popping rod is installed on each guide hole, the shape of the clamping end face of each clamping claw is consistent with the shape of a workpiece chamfering part, and the clamping end face of each clamping claw is installed; the process comprises the following steps:

(1) manually placing the blank forged piece of the inner ring of the conical bearing on a feeding disc of a rotary material warehouse, respectively clamping 1 blank forged piece of the inner ring by two clamping system ejection mechanisms, then sending the blank forged piece to a first numerical control lathe, and clamping 1 blank forged piece of the inner ring;

(2) a first step of: the first numerical control lathe sequentially finishes turning the inner diameter, chamfering the outer part of the car, turning the end surface of the back of the car and turning the assembly chamfer;

(3) taking out the inner ring machined part finished in the first step by the clamping system pop-up mechanism, clamping another 1 inner ring blank forged part on a first numerical control lathe, conveying the inner ring machined part finished in the first step to a turn-over mechanism, and conveying the inner ring machined part to a second numerical control lathe after turn-over clamping;

(4) and a second step: the second numerical control lathe sequentially finishes the turning of the outer diameter, the turning raceway, the turning overtravel groove, the outer chamfer and the inner chamfer; meanwhile, another 1 inner ring blank forging piece is pressedCarrying out first-order processing;

(5) the clamping system ejection mechanism takes out the inner ring machined part finished in the second step and sends the inner ring machined part to a feeding disc to finish machining of the inner ring of the conical bearing; meanwhile, the clamping system ejection mechanism clamps the 3 rd inner ring blank forging and sends the blank forging to a first numerical control lathe, and the process is repeated and circulated in the way.

The technical scheme of the invention is that three straight strip plates are uniformly distributed, one end of each straight strip plate is connected with the inner circle of the outer circular ring, and the other end of each straight strip plate is an open end; 3 groups of guide holes are arranged on the straight strip plate along the radius direction, wherein the guide holes on the inner side correspond to the clamping of a workpiece within the inner diameter range of 20-80 mm; the middle guide hole is corresponding to the clamping of a workpiece within the inner diameter range of 80-120 mm; the guide hole at the outer side corresponds to the clamping of the workpiece within the inner diameter range of 120-150 mm; the height of the clamping claw is consistent with that of the inner ring of the conical bearing.

According to the technical scheme, the clamping claw matched with the shape and the height of the chamfer part of the inner cone bearing inner ring within the inner diameter range of 120-150mm is selected and arranged on the base body, and the ejection rod is arranged on the guide hole at the outer side; the process of the step (1) comprises the following steps:

(1) manually placing the conical bearing inner ring blank forged piece with the outer diameter phi of 160-200 MM, the height of 35-50 MM and the inner diameter phi of 120-150MM on a feeding disc of a rotary material warehouse, respectively clamping 1 inner ring blank forged piece by two clamping system ejection mechanisms, then conveying the inner ring blank forged piece to a first numerical control lathe, and clamping 1 inner ring blank forged piece.

According to the technical scheme, a clamping claw matched with the shape and height of a chamfer part of an inner cone bearing inner ring within the inner diameter range of 80-120mm is selected and installed on a base body, and an ejection rod is installed on a guide hole in the middle; the process of the step (1) comprises the following steps:

(1) manually placing the conical bearing inner ring blank forged piece with the outer diameter phi of 100-160 MM, the height of 20-35 MM and the inner diameter phi of 80-120MM on a feeding disc of a rotary material warehouse, respectively clamping 1 inner ring blank forged piece by two clamping system ejection mechanisms, then conveying the inner ring blank forged piece to a first numerical control lathe, and clamping 1 inner ring blank forged piece.

According to the technical scheme, a clamping claw matched with the shape and height of a chamfer part of an inner cone bearing inner ring within the inner diameter range of 20-80mm is selected and installed on a base body, and an ejection rod is installed on a guide hole in the middle; the process of the step (1) comprises the following steps:

(1) manually placing the conical bearing inner ring blank forged piece with the outer diameter phi of 40-100 MM, the height of 10-20 MM and the inner diameter phi of 20-80MM on a feeding disc of a rotary material warehouse, respectively clamping 1 inner ring blank forged piece by two clamping system ejection mechanisms, then conveying the inner ring blank forged piece to a first numerical control lathe, and clamping 1 inner ring blank forged piece.

The invention adopts the automatic connection of the numerical control lathe truss consisting of two numerical control lathes, a T-shaped truss, a rotary stock bin and a turn-over mechanism, a clamping system of the T-shaped truss comprises two sets of clamping system popping mechanisms which are arranged in parallel, the clamping system popping mechanisms comprise popping claws, clamping claws and popping rods, the popping claws comprise an outer circular ring and a straight strip plate arranged along the radius direction of the outer circular ring, more than one guide hole is arranged on the straight strip plate along the radius direction, the popping rods are arranged on the guide holes, the shape of the clamping end surface of the clamping claws is consistent with the shape of the chamfer part of a workpiece, and the clamping end surface is arranged and fixed on a base body, so that the processing of the inner ring of the conical bearing with the outer diameter of 40 phi to 200mm, the height of 10 to 50mm, the inner hole (raceway) phi of 20 to 150mm and the inner hole taper of a blank forging can be realized, shorten the adjustment time by a wide margin, improve and trade living efficiency, simultaneously, only accomplish the car raceway in proper order at first numerical control lathe through an preface, chamfer in the car, back of the car terminal surface and car assembly chamfer, the car external diameter is accomplished in proper order at second numerical control lathe to the second preface, chamfer and the interior chamfer of car outside the car, send to the pay-off table and accomplish this conical bearing inner circle processing promptly, simultaneously, new inner circle blank forging of clamping system pop-up mechanism centre gripping is sent to first numerical control lathe, so reciprocal cycle processing improves product quality and production efficiency, reduce workman intensity of labour, effectively prevent that the industrial injury accident from appearing in the artifical unloading. In addition, because the water-based cooling liquid is adopted, the environment is effectively protected, the process leakage phenomenon is prevented, and the method is more suitable for manufacturing the cone inner rings in mass production. After the trusses of the numerical control lathe are automatically connected, each person can operate two production lines comprising four numerical control lathes, and labor cost is saved.

Drawings

Fig. 1 is a schematic structural diagram of a manipulator pop-up support of a conventional clamping system.

Fig. 2 is a schematic view of a gripper jaw of a conventional gripper system.

Figure 3 is a top view of a prior art clamping system clamping jaw.

Fig. 4 is a schematic structural diagram of the manipulator ejection support of the present invention.

Fig. 5 is a schematic structural view of the pop-up stand of the present invention.

Fig. 6 is a left side view of the pop-up stand of the present invention.

FIG. 7 is a schematic view of the gripper jaw of the present invention.

Figure 8 is a top view of a clamping jaw of the present invention.

Fig. 9 is a schematic structural view of the inner race product of the present invention.

In the figure: 1. ejecting a claw; 2. a gripper jaw; 3. a guide hole; 4. producing a product; 5. ejecting the rod; 6. ejecting a claw; 7. a gripper jaw; 8. a guide hole; 9. the rod is ejected.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 4-6. One embodiment of the clamping system adopted by the invention comprises two sets of clamping system ejection mechanisms which are arranged in parallel, each clamping system ejection mechanism comprises an ejection claw 6, a clamping claw 7 and an ejection rod 9, each ejection claw 6 comprises an outer circular ring and straight strips arranged along the radius direction of the outer circular ring, each straight strip is provided with 3 groups of guide holes 8 along the radius direction, and the ejection rods 9 can be selectively arranged on each group of corresponding guide holes 8 and are used for guiding and ejecting the inner ring products 4.

One end of each of the three uniformly distributed straight strip plates is connected with the inner circle of the outer circular ring, and the other end of each of the three uniformly distributed straight strip plates is provided with a strip plate-shaped popup claw with an open end. The 3 groups of guide holes 8 are respectively positioned on the concentric circles of the three straight strips, the 1 group of guide holes on the inner side correspond to the clamping of the workpiece within the inner diameter range of 20-80mm, similarly, the 1 group of guide holes on the middle correspond to the clamping of the workpiece within the inner diameter range of 80-120mm, and the 1 group of guide holes on the outer side correspond to the clamping of the workpiece within the inner diameter range of 120-150 mm.

As shown in fig. 7 and 8. One embodiment of the clamping system used in the present invention comprises a series of jaws 7 of different heights and shapes matching different chamfered portions of the workpiece.

The shape of the clamping end surface of the clamping claw 7 is consistent with the shape of the chamfer part of the workpiece, and the height is consistent with the height of the workpiece. The shape and the height of the clamping end face of the clamping claw 7 are respectively consistent with the shape and the height of the chamfer part of the workpiece within the inner diameter ranges of 20-80mm, 80-120mm and 120-150mm, so that when the inner ring and outer ring blank forged pieces of the series of conical bearings at the corresponding inner hole diameter section are machined, the clamping claw with the proper height and chamfer part shape can be selected and replaced, and the potential safety hazards that the clamping cannot be carried out or the throwing and activating occur in the operation process due to small stress area and insufficient clamping force can be avoided.

When a blank forging of the inner cone bearing inner ring within the inner diameter range of 20-80mm is processed, the ejection rods 9 are firstly installed in the innermost group of guide holes 8, 3 clamping claws with the height of 10-20 mm and the shape of the clamping end face matched with that of the chamfer part of the inner cone bearing inner ring within the inner diameter range of 20-80mm are selected and respectively installed and fixed on a base body, and batch production can be carried out.

When the blank forging of the inner ring of the conical bearing within the inner diameter range of 80-120mm is converted, 3 clamping jaw clamps 7 with the height of 20-35 mm and the shape of the holding end face consistent with that of the chamfer part of the inner ring of the conical bearing within the inner diameter range of 80-120mm can be respectively installed and fixed on a base body only by taking out the original ejection rod 9 and moving the ejection rod into the middle group of guide holes 8, and batch production can be achieved.

When the blank forging piece of the inner ring of the conical bearing in the inner diameter range of 120 plus one material of 150mm is subjected to conversion processing, only the original ejection rod 9 needs to be taken out and moved into the outermost group of guide holes 8, 3 clamping claw clamps 7 with the height of 35-50 mm and the shape of the holding end face consistent with that of the chamfer part of the inner ring of the conical bearing in the inner diameter range of 120 plus one material of 150mm are selected and respectively installed and fixed on the base body, and batch production can be carried out.

Example 1:

the one-piece turning machining process for machining the conical bearing inner ring with the inner diameter phi of 120-150MM comprises the following steps:

the clamping claw 7 matched with the shape and the height of the chamfer part of the inner cone bearing inner ring within the inner diameter range of 120-150mm is selected to be arranged on the base body, and the ejection rod 9 is arranged on the guide hole 8 at the outermost side; the process comprises the following steps:

(1) manually placing the conical bearing inner ring blank forged piece with the outer diameter phi of 160-200 MM, the height of 35-50 MM and the inner diameter phi of 120-150MM on a feeding disc of a rotary material warehouse, respectively clamping 1 inner ring blank forged piece by two clamping system ejection mechanisms, then conveying the inner ring blank forged piece to a first numerical control lathe, and clamping 1 inner ring blank forged piece;

(2) a first step of: the first numerical control lathe finishes lathing the raceway, lathing the inner chamfer, lathing the back end face and lathing the assembly chamfer in sequence;

(3) the clamping system ejection mechanism 7 takes out the inner ring machined part finished in the first step, clamps another 1 inner ring blank forged part on the first numerically controlled lathe, then conveys the inner ring machined part finished in the first step to the turn-over mechanism, and conveys the inner ring machined part to the second numerically controlled lathe after the turn-over clamping;

(4) and a second step: the second numerically controlled lathe finishes the turning of the outer diameter, the chamfering outside the vehicle and the chamfering inside the vehicle in sequence; meanwhile, another 1 inner ring blank forging piece is pressedCarrying out first-order processing;

(5) the clamping system ejection mechanism 7 takes out the inner ring machined part finished in the second step and sends the inner ring machined part to a feeding disc to finish machining of the inner ring of the conical bearing; meanwhile, the clamping system ejection mechanism clamps the 3 rd inner ring blank forging and sends the blank forging to a first numerical control lathe, and the process is repeated and circulated in the way.

Example 2:

the one-piece turning machining process for machining the conical bearing inner ring with the inner diameter phi of 80-120MM comprises the following steps:

selecting a clamping claw 7 with the shape and height consistent with the shape and height of a chamfer part of an inner cone bearing inner ring within the inner diameter range of 80-120mm, and installing an ejection rod 9 on a guide hole 8 at the innermost side; the process is different from example 1 only in the process of the (1) th step, and the process of the (1) th step of example 2 includes:

(1) manually placing the conical bearing inner ring blank forged piece with the outer diameter phi of 100-160 MM, the height of 20-35 MM and the inner diameter phi of 80-120MM on a feeding disc of a rotary material warehouse, respectively clamping 1 inner ring blank forged piece by two clamping system ejection mechanisms 7, then sending the inner ring blank forged piece to a first numerical control lathe, and clamping 1 inner ring blank forged piece.

Example 3:

the one-piece turning machining process for machining the conical bearing inner ring with the inner diameter phi of 20-80MM comprises the following steps:

selecting a clamping claw 7 matched with the shape and the height of a chamfer part of an inner cone bearing inner ring within the inner diameter range of 20-80mm, and installing the clamping claw 7 on a base body, wherein an ejection rod 9 is installed on a guide hole 8 at the innermost side; the process is different from example 1 only in the process of the (1) th step, and the process of the (1) th step of example 3 includes:

(1) manually placing the conical bearing inner ring blank forged piece with the outer diameter phi of 40-100 MM, the height of 10-20 MM and the inner diameter phi of 20-80MM on a feeding disc of a rotary material warehouse, respectively clamping 1 inner ring blank forged piece by two clamping system ejection mechanisms 7, then sending the inner ring blank forged piece to a first numerical control lathe, and clamping 1 inner ring blank forged piece.

The automatic wire changing machine optimizes the existing clamping system, enlarges the clamping range of the manipulator by adjusting the main program of the manipulator, realizes the full coverage of the purchased automatic wire on the inner ring of the conical bearing of the department, avoids the phenomenon that equipment is not matched with the machining model, reduces the working hour waste caused by replacing the clamping mechanism during the replacement, realizes the quick wire changing, improves the utilization rate and the machining efficiency of the automatic wire, and is more suitable for manufacturing the conical inner rings in mass production.