WO2023168961A1

WO2023168961A1 - Friction welding machine

Info

Publication number: WO2023168961A1
Application number: PCT/CN2022/129116
Authority: WO
Inventors: 张春波; 乌彦全; 梁武; 李睿; 秦丰; 李运雷; 周军; 赵玉珊; 杨海峰; 王祁; 闫翰林; 张文瀚; 金尕迪; 林跃; 许明
Original assignee: 哈尔滨焊接研究院有限公司
Priority date: 2022-03-11
Filing date: 2022-11-02
Publication date: 2023-09-14
Also published as: CN114473179B; NL2034283B1; NL2034283A; CN114473179A

Abstract

A friction welding machine (100), comprising: a machine base (1), a spindle system (2), a power system (3), a movable slide mechanism (4) and an upset forging oil cylinder (5). The spindle system is fixedly provided on the machine base, and the spindle system is used for installing a spindle workpiece. The power system is fixedly provided on the machine base, and the power system is in transmission connection to a spindle of the spindle system. The movable slide mechanism is in sliding connection to the machine base. The movable slide mechanism comprises a tailstock integrated body, the tailstock integrated body being used for mounting a tailstock workpiece. An axis adjusting device (7) is fixedly provided on the movable slide mechanism and can drive the tailstock integrated body to move and lock the position of the tailstock integrated body. The upset forging oil cylinder is fixedly provided on the machine base, an output end of the upset forging oil cylinder being fixedly connected to the movable slide mechanism. The upset forging oil cylinder can drive the movable slide mechanism to move close to or away from the spindle system. The friction welding machine can adjust the axis position of a tailstock workpiece.

Description

A friction welding machine

Technical field

The present invention relates to the technical field of friction welding, and in particular to a friction welding machine.

Background technique

As an important component of an aeroengine, the rotor assembly is a mechanical device that transmits mechanical energy to the gas to complete the compression of the gas medium in the engine's thermal cycle, thereby increasing the gas pressure. The traditional connection of aeroengine rotor components is mechanical bolt connection and electron beam welding. However, the mechanical connection results in a thicker and higher quality compressor wheel, which increases the overall weight of the engine and is not conducive to the improvement of the thrust-to-weight ratio and performance of the aeroengine. However, the electron beam welding method has higher heat input, larger welding deformation, higher post-weld residual stress, and difficulty in welding dissimilar materials. It is difficult to fully meet the design and manufacturing requirements of the aero-engine compressor disk, which seriously restricts the aero-engine To improve the overall performance, friction welding can meet the welding requirements of the workpiece. The friction welding device in the existing technology cannot be adjusted since the production and manufacturing of the tailstock axis and the fixture axis. Therefore, for those with special welding requirements, Workpieces often have problems with axis center accuracy deviations, and existing friction welding machines constrain the workpieces to easily shift due to torque during the welding process, resulting in workpieces that do not meet the welding requirements.

Contents of the invention

The purpose of the present invention is to provide a friction welding machine that can solve the above-mentioned problems existing in the prior art and can adjust the axis position of the tailstock workpiece.

In order to achieve the above objects, the present invention provides the following solutions:

The invention provides a friction welding machine, which includes a bed, a spindle system, a power system, a moving slide mechanism, and an upsetting oil cylinder; the spindle system is fixedly installed on the bed, and the spindle system is used to install a spindle workpiece. ; The power system is fixedly arranged on the bed, and the power system is drivingly connected to the spindle of the spindle system; the moving slide mechanism is slidingly connected to the bed, and the moving slide mechanism includes a tailstock Integrated body, the tailstock integrated body is used to install the tailstock workpiece, the moving slide mechanism is fixed with an axis center adjustment device, the axis center adjustment device can drive the movement of the tailstock integrated body, and can adjust the movement of the tailstock integrated body. The position of the tailstock integrated body is locked; the upsetting oil cylinder is fixedly installed on the bed; the output end of the upsetting oil cylinder is fixedly connected to the moving slide mechanism; the upsetting oil cylinder can drive all The moving slide mechanism is positioned close to or away from the spindle system.

Preferably, it also includes a rotation isolation mechanism, the rotation isolation mechanism includes a guide plate and a plurality of first adjustment mechanisms, the guide plate is used to be movably arranged on the tailstock integrated body, and a passage is opened on the guide plate. hole, a plurality of rollers are evenly arranged on the inner wall of the through hole along the circumferential direction of the through hole, the spindle system includes a rotation positioning body, the rotation positioning body is used to install the spindle workpiece, and part of the side wall of each of the rollers can be connected with all the parts at the same time. The rotation positioning outer wall is in contact with the outer wall, and each of the first adjustment mechanisms is used to be fixedly arranged on the tailstock integrated body. A plurality of the first adjustment mechanisms are distributed around the guide plate. Through each of the first adjustment mechanisms, Cooperating with the mechanism, the radial position of the guide plate can be adjusted to make the guide plate coaxial with the tailstock workpiece, and the position of the guide plate can be locked.

Preferably, each of the first adjustment mechanisms includes a first driving device and a first adjusting wedge, the first driving device is drivingly connected to the first adjusting wedge, and the tailstock integrated body corresponds to the first adjusting wedge. The first adjusting wedge is provided with a plurality of first fixed wedges. The first driving device drives the movement of the first adjusting wedge. The movement of the first adjusting wedge can drive the movement of the first fixed wedge. , thereby causing the radial position of the guide plate to change, and the position of the guide plate can be locked by the cooperation of each of the first adjusting wedges and the first fixed wedge.

Preferably, the power system includes an air cooling system and a driving system, the air cooling system can cool the driving system, and the driving system is drivingly connected to the main shaft through a coupling.

Preferably, the spindle system also includes a spindle box, a bearing seat, a balance hydraulic cylinder, a thrust plate, a thrust bearing, a floating bearing, a backup thrust bearing and the spindle, and the spindle part is located inside the spindle box and connected with the main spindle. The spindle box is rotationally connected, the spindle has a first shoulder, a first limiting portion is provided inside the spindle box, the thrust bearing is sleeved on the spindle and is located between the first shoulder and the Between the first limiting parts, the balance hydraulic cylinder and the thrust plate are both fixedly arranged inside the main spindle box and are not in contact with the spindle, and the thrust plate abuts against the balance hydraulic cylinder. On the piston rod, the side of the thrust plate away from the balance hydraulic cylinder has a second limiting portion, the main shaft has a second shoulder, and the floating bearing is sleeved on the main shaft and located on the first Between the shaft shoulder and the first limiting part, the side of the spindle box away from the moving slide mechanism is fixedly connected to the bearing seat, and the end of the spindle away from the moving slide mechanism can be connected from the The bearing seat protrudes from the bearing seat. One end of the spindle away from the moving slide mechanism is threadedly connected to a nut. The side wall of the nut forms a third limiting portion. The bearing seat has a fourth limiting portion. A thrust bearing for backup is sleeved on the main shaft and located between the third limiting part and the fourth limiting part.

Preferably, the axis adjustment device includes a plurality of tensioning mechanisms and a plurality of second adjustment mechanisms, the moving slide mechanism further includes a moving slide, and the tensioning mechanism is used to be disposed far away from the moving slide. On one side of the tailstock integrated body, each tensioning mechanism can drive the tailstock integrated body to move in a direction close to the moving slide table to limit the movement of the tailstock integrated body. The tailstock integrated body Moving in a direction away from the moving slide table can put the tailstock integrated body in an adjustable state; each of the second adjustment mechanisms is used to be fixedly arranged on the moving slide table, and a plurality of the second adjustment mechanisms are fixed on the moving slide table. Adjustment mechanisms are distributed around the tailstock integrated body. When the tailstock integrated body is in a position-adjustable state, the radial position of the tailstock integrated body can be adjusted and adjusted through a plurality of second adjustment mechanisms. Locking in radial position.

Preferably, each of the second adjustment mechanisms includes a second driving device and a second adjusting wedge, the second driving device is drivingly connected to the second adjusting wedge, and the tailstock integrated body is provided with a plurality of corresponding ones. a second fixed wedge, the second driving device can drive the second adjusting wedge to move, and the movement of one second adjusting wedge can drive a second fixed wedge to move, so that the tail When the position of the seat assembly changes, the radial position of the tailstock assembly can be locked by the cooperation of each of the second adjusting wedges and each of the second fixed wedges.

Preferably, the tensioning mechanism includes a tensioning cylinder and a tensioning rod. The tensioning rod can pass through the moving slide table and the tailstock integration in sequence. The tensioning rod is far away from the tailstock integration. One end of the body is drivingly connected to the tensioning cylinder, and the other end of the tensioning rod has a limiting end. The tensioning cylinder can drive the tensioning rod to move in a direction away from the tailstock integrated body, and The limiting end and the moving sliding table cooperate to limit the axial movement of the tailstock integrated body.

Preferably, the upsetting oil cylinder includes a first oil cylinder, a second oil cylinder and a locking mechanism. The piston rod of the first oil cylinder is used to be fixedly connected to the mobile slide table; a mobile slide is fixedly provided on the mobile slide table. The sliding table connecting seat, the piston rod of the second oil cylinder can be at least partially located inside the moving sliding table connecting seat and is slidingly connected with the moving sliding table connecting seat, and the piston rod of the first oil cylinder is connected to the second oil cylinder. The movement direction of the piston rod of the oil cylinder is parallel; the locking mechanism can lock the mobile slide connecting seat on the piston rod of the second oil cylinder.

Preferably, the locking mechanism includes a plurality of connecting pieces, and one end of the moving slide connecting seat away from the moving sliding platform has a plurality of through holes evenly opened along the circumferential direction of the moving sliding platform connecting seat, and the third There are a plurality of corresponding grooves on the piston rod of the two oil cylinders. By passing a connecting piece through a through hole and extending into one of the grooves corresponding to the through hole, the mobile slide base can be locked to the on the piston rod of the second oil cylinder.

Compared with the prior art, the present invention achieves the following technical effects:

The friction welding machine provided by the present invention is provided with an axis center adjustment device on the moving slide mechanism. The axis center adjustment device can adjust the position of the tailstock integrated body used to install the tailstock workpiece, thereby making the tailstock workpiece axis The heart position changes. Therefore, the friction welding machine provided by the present invention can adjust the axis position of the tailstock workpiece.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the drawings of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the overall structure of the friction welding machine provided by the present invention;

Figure 2 is a schematic structural diagram of the mobile slide mechanism provided by the present invention;

Figure 3 is a cross-sectional view of the mobile slide mechanism provided by the present invention;

Figure 4 is a schematic structural diagram of the upsetting cylinder provided by the present invention;

In the picture: 100-friction welding machine; 1-bed; 2-spindle system; 3-power system; 4-moving slide mechanism; 5-upsetting cylinder; 51-first cylinder; 52-second cylinder; 53 -Locking mechanism; 54-Mobile slide connecting seat; 6-Rotating isolation mechanism; 61-Guide plate; 62-First adjustment mechanism; 63-Roller; 7-Axis adjustment device; 71-Tightening mechanism; 72- The second adjustment mechanism; 721-the second driving device; 722-the second adjustment wedge; 723-the second fixed wedge.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

The purpose of the present invention is to provide a friction welding machine to solve the problems existing in the prior art and to be able to adjust the axis position of the tailstock workpiece.

In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

The invention provides a friction welding machine 100, as shown in Figure 1, including a bed 1, a spindle system 2, a power system 3, a moving slide mechanism 4, and an upsetting cylinder 5; the spindle system 2 is fixedly installed on the bed 1 On the machine body, the spindle system 2 is used to install the spindle workpiece; the power system 3 is fixedly installed on the machine bed 1, and the power system 3 is connected to the main shaft of the spindle system 2; the mobile slide mechanism 4 is slidingly connected to the machine bed 1, and the mobile slide mechanism 4 is slidingly connected to the machine bed 1. 4 includes a tailstock integrated body, which is used to install the tailstock workpiece. The movable slide mechanism 4 is fixed with an axis adjustment device 7. The axis adjustment device 7 can drive the tailstock integrated body to move and adjust the tail. The integrated position of the seat is locked; the upsetting cylinder 5 is fixedly installed on the bed 1, and the output end of the upsetting cylinder 5 is fixedly connected to the moving slide mechanism 4. The upsetting cylinder 5 can drive the moving slide mechanism 4 to approach or move away. Spindle system 2.

By providing an axis center adjustment device 7 on the movable slide mechanism 4, the axis center adjustment device 7 can adjust the position of the tailstock integrated body used to install the tailstock workpiece, so that the axis center position of the tailstock workpiece changes, thereby Adjust the position of the tailstock workpiece axis.

The friction welding machine 100 provided by the present invention also includes a rotating isolation mechanism 6. The rotating isolation mechanism 6 includes a guide plate 61 and a plurality of first adjustment mechanisms 62. The guide plate 61 is used to be movable on the tailstock integrated body. The guide plate 61 There is a through hole on the through hole, and a plurality of rollers 63 are evenly arranged on the inner wall of the through hole along the circumferential direction of the through hole. The spindle system 2 includes a rotation positioning body. The rotation positioning body is used to install the spindle workpiece. Part of the side wall of each roller 63 can be connected with the spindle at the same time. The outer wall of the rotation positioning body is in contact with each other. Each first adjustment mechanism 62 is used to be fixedly arranged on the tailstock integrated body. A plurality of first adjustment mechanisms 62 are distributed around the guide plate 61. The cooperation of each first adjustment mechanism 62 can adjust the guide plate. The radial position of the guide plate 61 is adjusted to make the guide plate 61 coaxial with the tailstock workpiece, and the position of the guide plate 61 can be locked.

The position of the guide plate 61 on the tailstock integrated body can be adjusted through each first adjustment mechanism 62. The rotation positioning body on the spindle for installing the spindle workpiece can partially extend into the guide plate 61 and contact the roller 63. At the same time, The position of the guide plate 61 is locked through the first adjustment mechanism 62. The guide plate 61 plays a position limiting role, which can prevent the workpiece from shifting during the welding process and prevent the workpiece from being dislocated due to the welding force and torque during the welding process. The axis is deflected to ensure that the workpiece has good runout accuracy after welding.

The rotary positioning body is installed on the spindle. The spindle elastic chuck installed in the rotary positioning body can clamp the spindle workpiece. During welding, the rotary positioning body and the spindle workpiece also rotate synchronously with the spindle. The tailstock integrated body can be used to clamp the tailstock. The workpiece and the tailstock integrated body are provided with multiple pressure plates. The guide plate 61 can be installed on the tailstock integrated body through the pressure plate. The pressure plate can limit the axial movement of the guide plate 61. When performing friction welding work, first adjust the spindle. The workpiece is coaxial with the tailstock workpiece. The first adjustment mechanism 62 is used to adjust the guide plate 61 so that the guide plate 61 is coaxial with the rotating positioning body. During the welding process, the guide plate 61 is placed on the rotating positioning body, and the rotating positioning body drives the roller 63 to rotate together. , each roller 63 has a rotating axis and can rotate independently, ensuring that the main shaft workpiece and the tailstock workpiece are always coaxial, and at the same time, it can avoid relative frictional motion between other components, thus playing the role of guidance and rotation isolation.

Each first adjustment mechanism 62 includes a first driving device and a first adjusting wedge. The first driving device is drivingly connected to the first adjusting wedge. The tailstock integrated body is provided with a plurality of first fixing blocks corresponding to the first adjusting wedge. The wedge is driven by the first driving device to move the first adjusting wedge. The movement of the first adjusting wedge can drive the movement of the first fixed wedge, thereby changing the radial position of the guide plate 61. Through each first adjusting wedge and The first fixed wedge cooperates to lock the position of the guide plate 61 .

The sliding surface of each first adjusting wedge is in contact with the sliding surface of a corresponding first fixed wedge. The sliding surface of each first adjusting wedge is at an angle to its own movement direction. The first driving device The first adjusting wedge can be driven to move, thereby changing the position of the guide plate 61 .

Power system 3 includes an air-cooling system and a drive system. The air-cooling system can cool the drive system. The drive system and the spindle are connected through a coupling. The drive system can drive the spindle to rotate and provide an axial force to the spindle.

The spindle system 2 also includes a spindle box, a bearing seat, a balance hydraulic cylinder, a thrust plate, a thrust bearing, a floating bearing, a backup thrust bearing, and a spindle. The spindle is partially located inside the spindle box and is rotationally connected to the spindle box. The spindle has a first axis. Shoulder, a first limit part is provided inside the main spindle box. The thrust bearing is sleeved on the main shaft and is located between the first shoulder and the first limit part. The balance hydraulic cylinder and the thrust plate are both fixedly installed inside the main spindle box and are evenly spaced. It does not come into contact with the main shaft to ensure that there is no interference when the main shaft rotates. The thrust plate is in contact with the piston rod of the balance hydraulic cylinder. The side of the thrust plate away from the balance hydraulic cylinder has a second limiter. The main shaft has a second shoulder and is floating. The bearing is sleeved on the main shaft and is located between the first shoulder and the first limiting part. The side of the main shaft box away from the moving slide mechanism 4 is bolted to the bearing seat. The end of the main shaft away from the moving slide mechanism 4 can be connected from the bearing. The end of the spindle away from the moving slide mechanism 4 is threadedly connected to a nut. The side wall of the nut forms a third limiter. The bearing seat has a fourth limiter. A backup thrust bearing is sleeved on the spindle. Located between the third limit part and the fourth limit part, the outer ring of the backup thrust bearing is installed with a transitional fit on the bearing seat, and the inner ring is installed with a transitional fit on the main shaft. The thrust bearing is on the small end side of the floating bearing. Close to the moving sliding table mechanism 4, the big end side of the backup thrust bearing is close to the moving sliding table mechanism 4. The thrust bearing, the floating bearing and the backup thrust bearing are all preferably thrust spherical roller bearings.

When the spindle reaches the predetermined speed, the power supply is stopped. An inertia wheel is provided at one end of the spindle system 2 close to the moving slide mechanism 4. Under the action of the inertia wheel, the spindle is still in a high-speed rotating state, and the tailstock clamped on the tailstock integrated body Driven by the upsetting cylinder 5, the workpiece approaches the spindle workpiece clamped on the spindle. Under the action of the top cylinder, the workpiece docking is completed. Under the action of frictional resistance between the two workpieces, the spindle gradually stops rotating, and the spindle gradually stops rotating from the two workpieces. When the workpiece comes into contact with the spindle and stops rotating to complete the welding process, there is always an axial heavy-load force acting on the axis of the spindle. The axial force is carried by the thrust bearing and the floating bearing in order to distribute the axial force to the thrust bearing in a more balanced manner. and floating bearings to prevent any bearing from being burned due to excessive force. The thrust bearing and floating bearing are installed in the middle of the main spindle box. The thrust bearing is fixedly installed and the floating bearing is floating. The fixedly installed thrust bearing will carry the axial load. The force acts directly on the spindle box, and the floating bearing is installed on the thrust plate. The axial force carried by the balance hydraulic cylinder acts indirectly on the spindle box. The function of the balance hydraulic cylinder is to balance the thrust bearing and the floating bearing. The specific principle of axial force is that the pressure chamber of the balance hydraulic cylinder is connected with the pressure chamber of the axial force pressure cylinder, and the area of the pressure chamber of the balance hydraulic cylinder is half of the area of the loading chamber of the axial force pressure cylinder. In this way, the balance hydraulic cylinder will provide half of the axial load capacity of the axial force. That is, the floating bearing carries half of the axial force under the action of the balance hydraulic cylinder, and then the other half of the axial force will be carried by the thrust bearing. By using heavy-load thrust adjustment The technology of radial roller bearings and balanced hydraulic cylinders balances force to solve the load-bearing problem of large-capacity spindle systems and improve bearing life.

The pressure chamber of the balance hydraulic cylinder is connected with the pressure chamber of the main shaft axial pressure hydraulic cylinder. The piston area of the pressure chamber of the balance hydraulic cylinder is half of the area of the pressure chamber of the main shaft axial pressure hydraulic cylinder. The balance hydraulic cylinder only has an oil inlet chamber. There is no oil return chamber.

The axis adjustment device 7 includes a plurality of tensioning mechanisms 71 and a plurality of second adjustment mechanisms 72. The moving slide mechanism 4 also includes a moving slide. The tensioning mechanisms 71 are used to be arranged on a side of the moving slide away from the tailstock integrated body. On the other hand, each tensioning mechanism 71 can drive the tailstock integrated body to move in the direction close to the moving slide table to limit the movement of the tailstock integrated body, and the tailstock integrated body can move in the direction away from the moving slide table to keep the tailstock integrated body in a position that can be Adjustment state; each second adjustment mechanism 72 is used to be fixedly arranged on the movable sliding table. Multiple second adjustment mechanisms 72 are distributed around the tailstock integrated body. When the tailstock integrated body is in the position-adjustable state, through the multiple second adjustment mechanisms 72 The adjustment mechanism 72 can adjust the radial position of the tailstock integrated body and lock its radial position.

Each second adjustment mechanism 72 includes a second driving device 721 and a second adjusting wedge 722. The second driving device 721 is drivingly connected to the second adjusting wedge 722. A plurality of second fixed wedges are correspondingly provided on the tailstock integrated body. 723. The second driving device 721 can drive the movement of the second adjusting wedge 722. The movement of a second adjusting wedge 722 can drive the movement of a second fixed wedge 723, thereby causing the position of the tailstock integrated body to change. Through each second The adjustment wedge 722 and each second fixed wedge 723 cooperate to lock the radial position of the tailstock integrated body.

The sliding surface of each second adjusting wedge 722 is in contact with the sliding surface of a corresponding second fixed wedge 723. The sliding surface of each second adjusting wedge 722 is at an angle to its own movement direction. The second driving device 721 can drive the second adjusting wedge 722 to move, thereby changing the position of the tailstock integrated body. There are preferably four second adjusting mechanisms 72, which are respectively arranged at the lower left, lower right and upper left side of the tailstock integrated body. and the upper right. By adjusting the second adjustment mechanism 72 at the lower left and/or lower right, the tailstock integrated body can be moved in various directions in the radial direction. The second driving device 721 can be electrically connected to the control system. Through the control system The set parameters control the feed amount of the second driving device 721, thereby enabling precise adjustment of the position of the tailstock integrated body with high adjustment accuracy and ensuring the post-weld accuracy of the workpiece. It is located at the upper left and upper right sides of the tailstock integrated body. The square second adjustment mechanism 72 is used to cooperate with the second adjustment mechanism 72 located at the lower left and lower right sides of the tailstock integrated body to clamp the tailstock integrated body, and the second adjustment mechanisms 72 located at the upper left and upper right sides of the tailstock integrated body. The second driving device 721 of the mechanism 72 may be an oil cylinder.

The tensioning mechanism 71 includes a tensioning cylinder and a tensioning rod. The tensioning rod can pass through the moving slide and the tailstock integrated body in sequence. The end of the tensioning rod away from the tailstock integration is transmission connected to the tensioning oil cylinder. One end has a limiting end, and the tensioning cylinder can drive the tensioning rod to move in a direction away from the tailstock integrated body, and the limiting end and the moving slide cooperate to limit the axial movement of the tailstock integrated body and tighten the A tensioning wedge is fixed on the piston rod of the oil cylinder, and a through hole is provided on the tensioning rod. The tensioning wedge can extend into the through hole, and the inner wall of the side of the through hole away from the tailstock integrated body can be connected with the tensioning wedge. The sliding surface of the tensioning cylinder is aligned with each other, and the tensioning cylinder drives the tensioning wedge to move with the piston rod, so that the tensioning wedge can act on the tensioning rod, and the tensioning rod can move away from the tailstock integrated body.

The upsetting oil cylinder 5 includes a first oil cylinder 51, a second oil cylinder 52 and a locking mechanism 53. The piston rod of the first oil cylinder 51 is used to be fixedly connected to the mobile slide table; a mobile slide table connection seat 54 is fixedly provided on the mobile slide table. At least part of the piston rod of the second oil cylinder 52 can be located inside the mobile slide connection seat 54 and is slidingly connected to the mobile slide connection seat 54. The piston rod of the first oil cylinder 51 is parallel to the movement direction of the piston rod of the second oil cylinder 52; locking The mechanism 53 can lock the moving slide connecting seat 54 on the piston rod of the second oil cylinder 52 .

The upsetting process is completed through two oil cylinders. The first oil cylinder 51 is only used to push the mobile slide table forward or backward without load. A long-stroke oil cylinder with less oil supply can be selected for the first oil cylinder 51. When the piston rod of the first oil cylinder 51 moves forward, When the spindle workpiece and the tailstock workpiece are at a certain distance, the moving slide connecting seat 54 is locked on the piston rod of the second oil cylinder 52 through the locking mechanism 53. The second oil cylinder 52 is locked on the piston rod of the second oil cylinder 52. The mobile slide table connecting seat 54 on the mobile slide table pushes the mobile slide table forward to complete upsetting. The second oil cylinder 52 can be a short-stroke and large oil supply cylinder. Compared with the existing technology, it is necessary to push the mobile slide table forward without load and also to push the mobile slide table forward without load. The large oil volume and long stroke cylinder that completes upsetting greatly reduces manufacturing and usage costs.

The locking mechanism 53 includes a plurality of connecting pieces. The end of the movable sliding table connecting seat 54 away from the moving sliding table has a plurality of through holes evenly opened along the circumferential direction of the movable sliding table connecting seat 54. The piston rod of the second oil cylinder 52 has corresponding holes. With multiple grooves, a connecting piece passes through a through hole and extends into a groove corresponding to the through hole, so that the moving slide base can be locked on the piston rod of the second oil cylinder 52 .

The locking mechanism 53 includes a plurality of connecting pieces. The end of the movable sliding table connecting seat 54 away from the moving sliding table has a plurality of through holes evenly opened along the circumferential direction of the movable sliding table connecting seat 54. The piston rod of the second oil cylinder 52 has corresponding holes. Multiple grooves, through a connecting piece passing through a through hole and extending into a groove corresponding to the through hole, can lock the mobile slide connecting seat 54 on the piston rod of the second oil cylinder 52, and connect The connecting piece is preferably a fixed pin. After upsetting is completed, remove the connecting piece and reset the first oil cylinder 51 and the second oil cylinder 52.

Specific examples are used in the present invention to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, based on this The idea of the invention will be subject to change in the specific implementation and scope of application. In summary, the contents of this description should not be construed as limitations of the present invention.

Claims

A friction welding machine, characterized by: including:

bed frame;

A spindle system, the spindle system is fixedly installed on the bed, and the spindle system is used to install a spindle workpiece;

A power system, the power system is fixedly installed on the bed, and the power system is drivingly connected to the spindle of the spindle system;

A moving slide mechanism, which is slidingly connected to the bed. The moving slide mechanism includes a tailstock integrated body. The tailstock integrated body is used to install the tailstock workpiece. The moving slide mechanism An axis center adjustment device is fixedly provided on the upper body, and the axis center adjustment device can drive the movement of the tailstock integrated body and lock the position of the tailstock integrated body;

And an upsetting oil cylinder. The upsetting oil cylinder is fixedly installed on the bed. The output end of the upsetting oil cylinder is fixedly connected to the moving slide mechanism. The upsetting oil cylinder can drive the moving slide mechanism to approach. Or move away from the spindle system.
The friction welding machine according to claim 1, further comprising: a rotation isolation mechanism, the rotation isolation mechanism includes a guide plate and a plurality of first adjustment mechanisms, the guide plate is used to be movable on the tailstock. On the integrated body, a through hole is provided on the guide plate, and a plurality of rollers are evenly arranged on the inner wall of the through hole along the circumferential direction of the through hole. The spindle system includes a rotation positioning body, and the rotation positioning body is used to install the spindle workpiece. Part of the side wall of each roller can be in contact with the outer wall of the rotation positioning body at the same time. Each of the first adjustment mechanisms is used to be fixedly arranged on the tailstock integrated body. A plurality of the first adjustment mechanisms surround the According to the distribution of the guide plate, the radial position of the guide plate can be adjusted by the cooperation of each of the first adjustment mechanisms to make the guide plate coaxial with the tailstock workpiece, and the position of the guide plate can be locked. .
The friction welding machine according to claim 2, characterized in that: each of the first adjustment mechanisms includes a first driving device and a first adjusting wedge, and the first driving device and the first adjusting wedge drive connection, the tailstock integrated body is provided with a plurality of first fixed wedges corresponding to the first adjustment wedges, and the first adjustment wedges are driven to move by the first driving device, and the first adjustment wedges The movement of the block can drive the movement of the first fixed wedge, thereby changing the radial position of the guide plate. The cooperation of each of the first adjusting wedges and the first fixed wedge can adjust the guide plate. Lock the position.
The friction welding machine according to claim 1, characterized in that: the power system includes an air cooling system and a driving system, the air cooling system can cool the driving system, and the driving system and the spindle pass through Coupling transmission connection.
The friction welding machine according to claim 1, wherein the spindle system further includes a spindle box, a bearing seat, a balance hydraulic cylinder, a thrust plate, a thrust bearing, a floating bearing, a backup thrust bearing and the spindle, The spindle part is located inside the spindle box and is rotationally connected to the spindle box. The spindle has a first shoulder, a first limiting part is provided inside the spindle box, and the thrust bearing is sleeved on the spindle box. On the main shaft and between the first shoulder and the first limiting part, the balance hydraulic cylinder and the thrust plate are both fixedly arranged inside the main shaft box and are not in contact with the main shaft, so The thrust plate is in contact with the piston rod of the balance hydraulic cylinder, the side of the thrust plate away from the balance hydraulic cylinder has a second limiting portion, the main shaft has a second shoulder, and the floating bearing sleeve It is provided on the main shaft and is located between the first shoulder and the first limiting part. The side of the main shaft box away from the moving slide mechanism is fixedly connected to the bearing seat. The main shaft One end of the spindle away from the moving slide mechanism can be extended from the bearing seat, and the end of the spindle away from the moving slide mechanism is threadedly connected to a nut, and the side wall of the nut forms a third limiting portion, so The bearing seat has a fourth limiting part, and the backup thrust bearing is sleeved on the main shaft and located between the third limiting part and the fourth limiting part.
The friction welding machine according to claim 1, characterized in that: the axis adjustment device includes a plurality of tensioning mechanisms and a plurality of second adjustment mechanisms, the moving slide mechanism further includes a moving slide, and the tensioning mechanism The tightening mechanism is used to be arranged on the side of the moving slide table away from the tailstock integrated body. Each tightening mechanism can drive the tailstock integrated body to move in a direction close to the moving slide table to limit the movement of the tailstock integrated body. The tailstock integrated body moves, and the movement of the tailstock integrated body in a direction away from the moving slide table can put the tailstock integrated body in an adjustable state; each of the second adjustment mechanisms is used to be fixedly arranged at the position of the tailstock integrated body. On the mobile sliding platform, a plurality of second adjustment mechanisms are distributed around the tailstock integrated body. When the tailstock integrated body is in a position-adjustable state, the plurality of second adjustment mechanisms can adjust the tailstock integrated body. The radial position of the seat integrated body is adjusted and its radial position is locked.
The friction welding machine according to claim 6, characterized in that: each of the second adjustment mechanisms includes a second driving device and a second adjusting wedge, and the second driving device and the second adjusting wedge drive transmission connection, a plurality of second fixed wedges are correspondingly provided on the tailstock integrated body, the second driving device can drive the movement of the second adjusting wedge, and the movement of one second adjusting wedge can drive one of the The second fixed wedge moves, thereby causing the position of the tailstock integrated body to change. The radial position of the tailstock integrated body can be adjusted by the cooperation of each second adjusting wedge and each second fixed wedge. Carry out locking.
The friction welding machine according to claim 6, characterized in that: the tensioning mechanism includes a tensioning cylinder and a tensioning rod, and the tensioning rod can pass through the moving slide table and the tailstock integrated body in sequence. , one end of the tensioning rod away from the tailstock integrated body is drivingly connected to the tensioning cylinder, the other end of the tensioning rod has a limiting end, and the tensioning cylinder can drive the tensioning rod toward moves away from the tailstock integrated body, and the limiting end cooperates with the moving slide table to limit the axial movement of the tailstock integrated body.
The friction welding machine according to claim 6, characterized in that: the upsetting cylinder includes a first cylinder, a second cylinder and a locking mechanism, and the piston rod of the first cylinder is used to be fixed to the moving slide table. Connection; a mobile slide connection seat is fixedly provided on the mobile slide, and at least part of the piston rod of the second oil cylinder can be located inside the mobile slide connection seat and is slidably connected to the mobile slide connection seat, so The movement direction of the piston rod of the first oil cylinder is parallel to that of the piston rod of the second oil cylinder; the locking mechanism can lock the mobile slide connecting seat on the piston rod of the second oil cylinder.
The friction welding machine according to claim 9, characterized in that: the locking mechanism includes a plurality of connectors, and one end of the moving sliding table connection seat away from the moving sliding table extends along the periphery of the moving sliding table connecting seat. A plurality of through holes are evenly opened in the direction, and a plurality of corresponding grooves are provided on the piston rod of the second oil cylinder. A connecting piece passes through a through hole and extends into one of the grooves corresponding to the through hole. In this way, the moving slide base can be locked on the piston rod of the second oil cylinder.