CN103551726A - Novel linear friction welding device - Google Patents

Abstract

A novel linear friction welding device is characterized in that it includes a bed (1), on which a vertical guide rail (2), a horizontal guide rail (9) and a guide rail (20) are installed respectively, wherein the vertical guide rail (2 ) is installed with the first workpiece clamping device (3) for clamping the workpiece, the slider mechanism (4) is placed on the horizontal guide rail (9), and the second workpiece clamping device (5) is installed on the slider mechanism (4) ; The first fixed frame (10) and the second fixed frame (11) are respectively installed on the beam (16) of the bed (1), and the first metal telescopic tube (12) and The first heating wire (14), the second metal telescopic tube (13) and the second heating wire (15) are installed under the second fixing frame (11); a guide rail (20) is respectively installed on both sides of the bed (2) , an impact fixing structure (17) is respectively installed on the two guide rails (20). The invention can effectively protect the equipment, simplify the processing method, save the processing time, effectively improve the utilization rate of the device, and increase the mechanical properties of the welding seam.

Description

New Linear Friction Welding Device

technical field

The invention relates to a welding technology, especially a linear friction welding technology, in particular, a workpiece is heated before linear friction to reduce the friction time and friction pressure, and the workpiece is bonded by bullet impact to reduce the overall The impact of the slider mechanism effectively protects the equipment. At the same time, the flash cutting is realized through the designed device during the bonding process, which simplifies the processing method, saves processing time, and effectively improves the utilization rate of the new linear friction welding device.

Background technique

At present, linear friction welding has been more and more widely used in recent years, especially for the welding of blades and impellers. At present, there is a tendency to adopt this welding method, but linear friction welding has many defects, such as flash, Impact force and large vibration frequency, etc. Due to the existence of these defects, the application of this technology has been delayed. With the continuous development of my country's aviation technology, the manufacture of domestic aero-engines has developed rapidly, but one of the important components of aero-engines is the manufacture of impeller blades. How to accurately manufacture aero-engine impeller blades is one of the main technologies to improve the performance of aero-engines . In order to overcome this difficulty, the present invention uses preheating welding on the basis of the existing linear friction welding technology to reduce the large impact force. As well as rapid removal of flash and other technologies, the workpiece welding time is short, the efficiency is high, and the welding quality is good. Therefore, the present invention can be widely used.

Contents of the invention

The purpose of the present invention is to design a new type of linear friction welding device with small punching force and capable of cutting off flash at the same time, aiming at the problems of the existing linear friction welding that the impact force is easy to produce flash.

Technical scheme of the present invention is:

A new type of linear friction welding device is characterized in that it includes a bed 1 on which a vertical guide rail 2, a horizontal guide rail 9 and a guide rail 20 are respectively installed, wherein the vertical guide rail 2 is equipped with a first workpiece device for clamping workpieces. Clamping device 3, a slider mechanism 4 is placed on the horizontal guide rail 9, a second workpiece clamping device 5 is installed on the slider mechanism 4, a ballistic 6 is opened inside the slider mechanism, and a bullet 7 is placed at one end of the ballistic 6. One end is connected with the pressurizer 8; the first fixed frame 10 and the second fixed frame 11 are respectively installed on the beam 16 of the bed 1, and the first metal telescopic tube 12 and the first metal telescopic tube 12 are installed under the first fixed frame 10. The pipe is connected and is used for the first electric heating wire 14 that is clamped in the first workpiece clamping device 3 to reheat the workpiece, and the second metal telescopic tube 13 and the second metal telescopic tube 13 are installed below the second fixed frame 11 and used for A second heating wire 15 for heating the workpiece clamped on the second workpiece clamping device 5; a guide rail 20 is installed on both sides of the bed 2, and an impact fixing structure 17 is respectively installed on the two guide rails 20.

The impact fixing mechanism 17 is mainly composed of a fixing plate 17-1, a track 17-2, a trimming presser 17-3, a cutter bar 17-4, a blade 17-5, and a base 17-6. The fixing plate 17- 1 guide rail 17-2 is housed, and guide rail 17-2 one end is equipped with trimming pressure device 17-3, and trimming pressure device 17-3 one end is equipped with knife bar 17-4, and knife bar 17-4 other end and blade 17-5 are connected, and the tool bar 17-4 and the blade 17-5 are placed in the guide rail 17-2, the fixed frame 17-1 is fixed on the base 17-6 by bolts, and the fixed plate 17-1 is made of different specifications according to the workpiece size In order to weld workpieces of different sizes; the workpiece is clamped to the first workpiece clamping device 3 and the second workpiece clamping device 5, and after the position is fixed, the first fixed mount 10 and the second fixed mount 11 are controlled by the controller 18 respectively Move to the correct position of the beam 16. At this time, the first metal telescopic tube 12 and the second metal telescopic tube 13 are stretched out so that the first heating wire 14 and the second heating wire 15 respectively reach the workpiece position and are inserted into the corresponding workpiece to start Heating, stop heating when the heating temperature exceeds 2/3 of the melting point of the material, the first metal telescopic tube 12 and the second metal telescopic tube 13 shrink to make the first heating wire 14 and the second heating wire 15 leave the workpiece, and the slider mechanism 4 moves along Move along the horizontal guide rail 9, close the two workpieces together, and then control the first workpiece clamping device 3 to move up and down at high frequency along the vertical guide rail 2 through the controller 18 to realize linear friction between the two workpieces, and stop the friction after the friction reaches the set time , remove the slider mechanism 4, then move the impact fixing structure 17 to the set position, confirm that the fixing plates 17-1 on both sides are closed, open the pressurizer 8 and shoot the bullet 7 along the trajectory 6, and the bullet 7 will be clamped at the second The workpiece on the second workpiece clamping device 5 is quickly punched out and collides with the workpiece clamped on the second workpiece clamping device 3 in the fixed splint 17-1 and bonded together, and simultaneously opens the guide rail 17- on the fixed plate 17-1 2. The edge trimming pressurizer 17-3 at one end drives the upper blade 17-5 to impact downwards along the guide rail 17-2 to the cutter bar 17-4 pressurized impact, and cuts off the flash on the workpiece. Finally remove the fixed plate 17-1, and take out the welded workpiece.

The up and down movement of the workpiece clamping device 3 on the vertical rail 2, the horizontal movement of the slider mechanism 4 on the horizontal rail 9, the pressure control of the pressurizer 8, the movement of the first fixed frame 10 on the beam 16, the movement of the second The expansion and contraction of a metal expansion tube 12 and the heating control of the first heating wire 14, the movement of the second fixed frame 11 on the beam 16, the expansion and contraction of the second metal expansion tube 13 and the heating control of the second heating wire 15, and the impact fixing mechanism 17 moves on the guide rail 20, and the trimming presser 17-3 in the impact fixing mechanism makes the movement control of the blade 17-5 along the guide rail 17-2 all controlled by the controller 18 and monitored online by the computer 19.

Beneficial effects of the present invention:

The invention reduces the friction time and friction pressure by heating the workpiece before the linear friction, and realizes the workpiece bonding through the impact of bullets to reduce the impact of the entire slider mechanism, effectively protecting the equipment, and at the same time through the bonding process The designed device realizes flash cutting, simplifies the processing method, saves processing time, effectively improves the utilization rate of the device, and increases the mechanical properties of the weld.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

FIG. 2 is a schematic diagram of the overall structure of the impact fixing mechanism 17 of the present invention.

FIG. 3 is a side front view of the impact fixing mechanism 17 of the present invention.

FIG. 4 is a side right side view of the impact fixing mechanism 17 of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figure 1-2.

A new type of linear friction welding device, which mainly consists of a bed 1, a vertical guide rail 2, a first workpiece clamping device 3, a slider mechanism 4, a second workpiece clamping device 5, a trajectory 6, a bullet 7, and a pressurizer 8 , horizontal track 9, first fixed frame 10, second fixed frame 11, first metal telescopic tube 12, second metal telescopic tube 13, first heating wire 14, second heating wire 15, beam 16, impact fixing mechanism 17 , a controller 18, a computer 19 and a guide rail 20, the bed 1 is equipped with a vertical guide rail 2, a horizontal guide rail 9 and a guide rail 20 respectively, wherein the first workpiece clamping device 3 for clamping workpieces is installed on the vertical guide rail 2, and the horizontal Slider mechanism 4 is placed on the guide rail 9, and second workpiece clamping device 5 is housed on the slider mechanism 4, and ballistic 6 is opened inside the slider mechanism, and bullet 7 is placed on one end of ballistic 6, and one end of bullet 7 and pressurizer 8 are connected; the beam 16 of the bed 1 is equipped with a first fixed frame 10 and a second fixed frame 11 respectively, and the first metal telescopic tube 12 is installed below the first fixed frame 10 and is connected with the first metal telescopic tube and is used for The first electric heating wire 14 that is clamped in the first workpiece clamping device 3 and the workpiece is heated back, the second metal telescopic tube 13 and the second metal telescopic tube 13 are installed under the second fixed frame 11 and are used to install the second workpiece. A second heating wire 15 for heating the workpiece clamped on the clamping device 5; a guide rail 20 is respectively installed on both sides of the bed 2, and an impact fixing structure 17 is respectively installed on the two guide rails 20, as shown in Figure 1 . Impact fixing mechanism 17 is shown in Figure 2, Figure 3 and Figure 4, and it mainly consists of fixed plate 17-1, track 17-2, trimming pressure device 17-3, cutter bar 17-4, blade 17-5, Base 17-6 is formed, and guide rail 17-2 is housed on fixed plate 17-1, and trimming pressurizer 17-3 is equipped with at one end of guide rail 17-2, and cutter bar 17-4 is equipped with at one end of trimming pressurizer 17-3 , the other end of the knife bar 17-4 is connected with the blade 17-5, and the knife bar 17-4 and the blade 17-5 are placed in the guide rail 17-2, and the fixing frame 17-1 is fixed on the base 17-6 by bolts, and fixed The plate 17-1 is made of different specifications according to the size of the workpiece so as to weld workpieces of different sizes; The first fixed frame 10 and the second fixed frame 11 move to the correct position of the beam 16. At this time, the first metal telescopic tube 12 and the second metal telescopic tube 13 are stretched out so that the first heating wire 14 and the second heating wire 15 reach the workpiece respectively. position and put it into the corresponding workpiece to start heating, stop heating when the heating temperature exceeds 2/3 of the melting point of the material, the first metal telescopic tube 12 and the second metal telescopic tube 13 shrink to make the first electric heating wire 14 and the second electric heating wire The wire 15 leaves the workpiece, and the slider mechanism 4 moves along the horizontal guide rail 9 to bring the two workpieces together, and then the controller 18 controls the first workpiece clamping device 3 to move up and down at high frequency along the vertical guide rail 2 to realize linear friction between the two workpieces , stop friction after the friction reaches the set time, remove the slider mechanism 4, then move the impact fixing structure 17 to the set position, make sure that the fixing plates 17-1 on both sides are closed, and open the pressurizer 8 to move the bullet 7 along the trajectory 6 is shot out, and the bullet 7 will quickly knock out the workpiece clamped on the second workpiece clamping device 5 and collide with the workpiece clamped on the second workpiece clamping device 3 in the fixed splint 17-1 and bond together, simultaneously Open the trimming pressure device 17-3 at one end of the guide rail 17-2 on the fixed plate 17-1, pressurize and impact the cutter bar 17-4 to drive the upper blade 17-5 to impact downward along the guide rail 17-2, and cut off the upper part of the workpiece. the flying edge. Finally remove the fixed plate 17-1, and take out the welded workpiece. The up and down movement of the workpiece clamping device 3 on the vertical rail 2, the horizontal movement of the slider mechanism 4 on the horizontal rail 9, the pressure control of the pressurizer 8, the movement of the first fixed frame 10 on the beam 16, the movement of the second The expansion and contraction of a metal expansion tube 12 and the heating control of the first heating wire 14, the movement of the second fixed frame 11 on the beam 16, the expansion and contraction of the second metal expansion tube 13 and the heating control of the second heating wire 15, and the impact fixing mechanism 17 moves on the guide rail 20, and the trimming presser 17-3 in the impact fixing mechanism makes the movement control of the blade 17-5 along the guide rail 17-2 all controlled by the controller 18 and monitored online by the computer 19.

The parts not involved in the present invention are the same as the prior art or can be realized by adopting the prior art.

Claims (3)

1. A new type of linear friction welding device is characterized in that it includes a bed (1), and the bed (1) is respectively equipped with a vertical guide rail (2), a horizontal guide rail (9) and a guide rail (20), wherein the vertical guide rail The first workpiece clamping device (3) for clamping the workpiece is installed on (2), the slider mechanism (4) is placed on the horizontal guide rail (9), and the second workpiece clamping device ( 5), there is a ballistic (6) inside the slider mechanism, a bullet (7) is placed at one end of the ballistic (6), and one end of the bullet (7) is connected to the pressurizer (8); the beam of the bed (1) ( 16) The first fixed frame (10) and the second fixed frame (11) are respectively installed on the top, and the first metal telescopic tube (12) is installed under the first fixed frame (10) and connected with the first metal telescopic tube and used for The first electric heating wire (14) for reheating the workpiece clamped in the first workpiece clamping device (3), the second metal telescopic tube (13) and the second metal telescopic tube (13) are installed under the second fixed frame (11). tube (13) and the second heating wire (15) used to heat the workpiece clamped on the second workpiece clamping device (5); a guide rail (20) is installed on both sides of the bed (2), and two guide rails (20) are respectively equipped with an impact fixed structure (17). 2. The new linear friction welding device according to claim 1, characterized in that the impact fixing mechanism (17) is mainly composed of a fixing plate (17-1), a track (17-2), a trimming presser ( 17-3), cutter bar (17-4), blade (17-5), base (17-6), the fixed plate (17-1) is equipped with guide rail (17-2), guide rail (17-2) One end is equipped with trimming pressurizer (17-3), and one end of trimming pressurizer (17-3) is equipped with cutter bar (17-4), and the other end of cutter bar (17-4) and blade (17-5 ), and the tool bar (17-4) and the blade (17-5) are placed in the guide rail (17-2), the fixing frame (17-1) is fixed on the base (17-6) by bolts, and the fixing plate ( 17-1) Make different specifications according to the size of the workpiece to weld workpieces of different sizes; the workpiece is clamped to the first workpiece clamping device (3) and the second workpiece clamping device (5), and after the position is fixed, they are respectively passed through the control The device (18) controls the first fixed frame (10) and the second fixed frame (11) to move to the correct position of the beam (16), and at this time, the first metal telescopic tube (12) and the second metal telescopic tube (13) are stretched out ) Make the first heating wire (14) and the second heating wire (15) reach the workpiece position respectively and put them into the corresponding workpiece to start heating, stop heating when the heating temperature exceeds 2/3 of the melting point of the material, the first metal stretches The tube (12) and the second metal telescopic tube (13) shrink to make the first heating wire (14) and the second heating wire (15) leave the workpiece, and the slider mechanism (4) moves along the horizontal guide rail (9), and the two The workpieces are close together, and then the controller (18) controls the first workpiece clamping device (3) to move up and down at high frequency along the vertical guide rail (2) to realize linear friction between the two workpieces. After the friction reaches the set time, stop the friction and move Open the slider mechanism (4), then move the impact fixing structure (17) to the set position, make sure that the fixing plates (17-1) on both sides are closed, and open the pressurizer (8) to push the bullet (7) along the trajectory (6 ), the bullet (7) quickly ejects the workpiece clamped on the second workpiece clamping device (5) and is aligned with the workpiece clamped on the second workpiece clamping device (3) in the fixed splint (17-1). Hit and bond together, and at the same time open the trimming presser (17-3) at the end of the guide rail (17-2) on the fixed plate (17-1), pressurize and impact the cutter bar (17-4) to drive it The blade (17-5) impacts downward along the guide rail (17-2) to cut off the burr on the workpiece; finally remove the fixing plate (17-1) to take out the welded workpiece. 3. The new linear friction welding device according to claim 1, characterized in that the workpiece clamping device (3) moves up and down on the vertical track (2), and the slider mechanism (4) moves up and down on the horizontal track (9). ), the pressure control of the pressurizer (8), the movement of the first fixed frame (10) on the beam (16), the expansion and contraction of the first metal telescopic tube (12) and the first heating wire (14) Heating control, movement of the second fixed frame (11) on the beam (16), expansion and contraction of the second metal telescopic tube (13) and heating control of the second heating wire (15), impact fixing mechanism (17) on the guide rail ( 20) The trimming presser (17-3) in the upper movement and impact fixing mechanism makes the movement control of the blade (17-5) along the guide rail (17-2) all controlled by the controller (18) and controlled by the computer. (19) Online monitoring.

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