CN114769838A - Welding platform for friction stir welding - Google Patents

Abstract

The invention provides a welding platform for friction stir welding, which includes a bracket, an end clamping mechanism and a pressing mechanism; the bracket is provided with a table for placing a floor; the table includes a platform arranged along the length direction of the bracket A plurality of transverse beams and a plurality of longitudinal beams arranged along the width direction of the bracket; the transverse beam is arranged on the bracket; the longitudinal beam is slidably arranged on the transverse beam; the end clamping mechanism comprises a first end clamping single piece and a The second end clamping single piece, the first end clamping single piece and the second end clamping single piece are arranged at both ends located in the length direction of the bracket, the first end clamping single piece and the second end clamping single piece The combination of the clamping single piece is used to limit the two ends of the floor on the table top; the pressing mechanism is arranged on one side or both sides of the length direction of the bracket, and is used for pressing the floor on the table top. The welding platform provided by the invention can be used for friction stir welding, which greatly satisfies the needs of enterprises for welding automation and intelligence.

Description

A welding platform for friction stir welding

technical field

The invention relates to the technical field of welding, in particular to a welding platform for friction stir welding.

Background technique

In recent years, with the continuous improvement of people's living standards, there is an urgent need for the improvement of work efficiency and the reduction of labor intensity. Friction stir welding is currently a high degree of automation, no smoke and arc pollution, small welding deformation, and non-melting. Advanced welding technology. With the urgent needs of modern enterprises for automation, green environmental protection and low energy consumption welding technology, the purchase of friction stir welding equipment is increasing, and the requirements for automated welding assembly are becoming more and more popular, and automatic clamping equipment is to achieve this. One of the key facilities indispensable to technology.

Because friction stir welding has high requirements on the welding seam assembly of the product before welding, it needs a good guarantee of tooling; at the same time, because the floor is very long (more than 20 meters), it is very difficult to clamp the product by conventional manual, and the labor intensity is high. , the work efficiency is low. How to solve the above problems, ensure fast, stable and intelligent automation of assembly, improve the construction efficiency of operators, and how to make the tooling universal to the greatest extent, reduce design and manufacturing costs, and maximize market competitiveness are also the key points of enterprise development. .

To sum up, there is an urgent need for a welding platform for friction stir welding to solve the problems existing in the prior art.

SUMMARY OF THE INVENTION

The object of the present invention is to provide a welding platform for friction stir welding, and the specific technical scheme is as follows:

A welding platform for friction stir welding, comprising a bracket, an end clamping mechanism and a pressing mechanism;

The support is provided with a table for placing the floor; the table includes a plurality of cross beams arranged along the length direction of the support and a plurality of longitudinal beams arranged along the width direction of the support; the cross beams are arranged on the support; the longitudinal beams slide set on the beam;

The end clamping mechanism includes a first end clamping single piece and a second end clamping single piece, and the first end clamping single piece and the second end clamping single piece are arranged at the length of the bracket. At both ends of the direction, the combination of the first end clamping single piece and the second end clamping single piece is used to limit the two ends of the floor on the countertop;

The pressing mechanism is arranged on one side or both sides of the length direction of the bracket, and is used for pressing the floor on the table top.

Preferably, the first end clamping single piece includes a guide rail and a pressing structure; the guide rail is arranged on a bracket, and the length direction of the guide rail is the same as the width direction of the bracket; the pressing structure is used for pressing the floor And it is slidably arranged on the guide rail.

Preferably, the pressing structure includes a support seat, a pressing oil cylinder, a cantilever and a pressing part; the supporting seat is slidably arranged on the guide rail; the pressing oil cylinder is arranged on the supporting seat; the first end of the cantilever arm It is arranged at the output end of the pressing cylinder; the second end of the cantilever is provided with a pressing part, and the pressing oil cylinder can drive the cantilever and the pressing part to move to press or loosen the floor.

Preferably, the pressing structure further includes a locking member capable of fixing the relative position between the support seat and the guide rail; the locking member includes a bolt and a threaded hole provided on the support seat; the bolt is matched with the threaded hole The relative position between the support base and the guide rail can be fixed.

Preferably, the second end clamping unit includes a limiting member capable of limiting the end of the floor; the limiting member is a limiting plate or a pressing member having an end capable of engaging with the floor .

Preferably, the top tightening member includes an installation table and a top arm, the installation table is arranged on the bracket, the top arm is rotatably arranged on the installation table, and the free end of the top arm is provided with a matching end of the floor. Fitting bit.

Preferably, the pressing member includes an elastic member; the elastic member includes a spring connecting member and a fitting position; the spring connecting member can expand and contract along the length direction of the floor, and the fitting position is matched with the end of the floor and is It is arranged on the bracket by means of a spring connection.

Preferably, the second end clamping single piece is slidably arranged on the bracket along the length direction of the floor.

Preferably, the pressing mechanism comprises at least two pressing arm pieces arranged along the length direction of the floor; the pressing arm single piece comprises two pressing arms arranged on both sides of the floor length direction; the pressing arms comprise support columns , forearm and rear arm; the support column is arranged on the bracket; the first end of the rear arm and the support column and the second end of the rear arm and the forearm are connected by a rotating part; the forearm A hydraulic oil cylinder is also arranged at one end away from the rear arm; a pressing cover is arranged on the free end of the piston rod of the hydraulic oil cylinder; the pressing cover is used for pressing the floor.

Preferably, the rotating part includes a gear structure or a worm gear structure;

The gear structure includes a stepping motor 1, a gear 1 and a gear 2; the stepping motor 1 is arranged on the rear arm; the rear arm is rotatably arranged on the support column; the gear 1 is arranged on the supporting column, the The second gear is arranged at the output end of the first stepping motor, the first gear meshes with the second gear, and the first stepping motor, the first gear and the second gear cooperate to realize the rotation of the rear arm relative to the support column;

The worm gear and worm structure includes a second stepping motor, a worm arranged at the output end of the second stepping motor, a pin shaft, and a worm wheel sleeved on the pin shaft; the end adjacent to the rear arm and the front arm is provided with a shaft hole, The combination of the pin shaft and the pin hole realizes the active connection between the rear arm and the front arm; one side of the worm wheel is fixedly connected with the end of the front arm close to the rear arm; the worm wheel is meshed with the worm; the second stepper motor, the worm wheel, The combination of the worm and the pin shaft enables the front arm to rotate around the pin shaft and relative to the rear arm.

Applying the technical scheme of the present invention has the following beneficial effects:

(1) In the present invention, the designed combined bracket is used, and the super-large welding support table underframe is formed by setting the cross beam and the slidable longitudinal beam, which can meet the use range of different length and width floors, and make the tooling universal The utility model has very strong performance and greatly reduces the tooling processing cost; the invention also provides a combined end clamping mechanism to meet the clamping requirements of the floor.

(2) A pressing mechanism is set up in the present invention. Through the stroke and pressing function of the hydraulic cylinder, the floor can be pressed from the side. Since the pressing arm has a rotatable forearm and a rear arm, it can meet floors of different widths and increase the The scope of use is increased, thereby increasing the compatibility of the tooling.

In addition to the objects, features and advantages described above, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the drawings.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Fig. 1 is the structural schematic diagram of the welding platform of the preferred embodiment 1 of the present invention;

Fig. 2 is the enlarged schematic diagram of the bracket in Fig. 1;

Figure 3 is an enlarged schematic view of the end clamping mechanism at one end of the bracket in Figure 1;

Fig. 4 is the structural representation of the horizontal adjustment member in Fig. 1;

5 is an enlarged schematic view of the end clamping mechanism at the other end of the bracket in FIG. 1;

Fig. 6 is the structural representation of the pressing arm in the pressing mechanism in Fig. 1;

Among them, 1-bracket, 1.1-beam, 1.2-longitudinal beam, 1.3-level adjustment piece, 1.3.1-level adjustment plate, 1.3.2-screws, 2-end clamping mechanism, 2.1-first end clamp Holder, 2.1.1-Support, 2.1.2-Lock, 2.1.3-Press Cylinder, 2.1.4-Cantilever, 2.1.5-Press, 2.1.6-Guide, 2.2-Limit Position plate, 2.3-topper, 3-pressing arm, 3.1-support column, 3.2-rear arm, 3.3-forearm, 3.4-rotating part.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention may be implemented in many different ways as defined and covered by the claims.

Example 1:

Referring to FIG. 1, a welding platform for friction stir welding includes a bracket 1, an end clamping mechanism 2 and a pressing mechanism;

The bracket 1 is provided with a table for placing the floor; the table includes twenty-one beams 1.1 arranged along the length of the bracket 1 and seven longitudinal beams 1.2 arranged along the width of the bracket 1. The floor is placed in the vertical direction. on the beam; the beam 1.1 is arranged on the bracket 1; the beam 1.1 is provided with a chute along the length of the beam, and the shape of the contact surface between the longitudinal beam and the beam matches the shape of the chute, and the two are combined to achieve The longitudinal beam 1.2 is slidable on the transverse beam 1.1; the longitudinal beam 1.2 is also provided with a driving member 1, the driving member 1 includes a motor 1, a gear 1 and a rack 1, and the motor 1 is arranged on the longitudinal beam 1.2 , the rack is arranged on the bracket 1, the gear is arranged at the output end of the motor 1 and matched with the rack 1, the motor 1 outputs power, the gear rotates, and further cooperates with the rack 1 to realize the longitudinal beam 1.2 Slide on stringer 1.2. Further, the bottom of the bracket 1 is also provided with sixteen horizontal adjustment members 1.3; the horizontal adjustment members 1.3 are respectively arranged on the bracket 1 correspondingly to level the bracket 1; the horizontal adjustment member 1.3 is composed of six A screw 1.3.2 and a horizontal adjustment plate 1.3.1; the horizontal adjustment plate 1.3.1 is arranged on the bracket 1; the horizontal adjustment plate 1.3.1 is provided with a screw hole corresponding to the screw 1.3.2, the The screw 1.3.2 cooperates with the level adjustment plate 1.3.1 to realize the leveling of the bracket 1.

The end clamping mechanism 2 comprises a first end clamping single piece 2.1 and a second end clamping single piece, the first end clamping single piece 2.1 and the second end clamping single piece are arranged on the Located at both ends of the length direction of the bracket 1, the combination of the first end clamping single piece 2.1 and the second end clamping single piece is used to limit the two ends of the floor on the countertop;

The pressing mechanisms are arranged on both sides of the length direction of the bracket 1, and are used for pressing the floor on the table top.

In this embodiment, the first end clamping single piece 2.1 includes a guide rail 2.1.6 and a pressing structure; the guide rail 2.1.6 is provided with six pressing structures; the guide rail 2.1.6 is provided with a bracket 1, the length direction of the guide rail is the same as the width direction of the bracket; the pressing structure is used for pressing the floor and is slidably arranged on the guide rail 2.1.6.

In this embodiment, the pressing structure includes a supporting seat 2.1.1, a pressing oil cylinder 2.1.3, a cantilever 2.1.4 and a pressing portion 2.1.5; the supporting seat 2.1.1 is slidably arranged on the guide rail 2.1.1. 6; the pressing oil cylinder 2.1.3 is arranged on the support base 2.1.1; the first end of the cantilever 2.1.4 is arranged on the output end of the pressing oil cylinder 2.1.3; the first end of the cantilever 2.1.4 The two ends are provided with pressing parts 2.1.5, and the pressing oil cylinder 2.1.3 can drive the cantilever 2.1.4 and the pressing part 2.1.5 to press or loosen the floor. The pressing structure also includes a second driving member; the driving member two includes a second motor, a second gear and a second rack; the second motor is arranged on the support seat 2.1.1 of the pressing structure, and the second rack is arranged on the guide rail In 2.1.6, the second gear is arranged at the output end of the second motor and is matched with the second rack. Through the output power of the second motor, the second gear rotates, and further cooperates with the second rack to realize the pressing structure on the guide rail 2.1.6. sliding.

In this embodiment, the pressing structure further includes a locking member capable of fixing the relative position between the support base 2.1.1 and the guide rail 2.1.6; the locking member includes a bolt and is arranged on the support base 2.1.1 threaded holes; the bolts cooperate with the threaded holes to fix the relative position between the support base 2.1.1 and the guide rail 2.1.6. By tightening the bolts, the relative position between the support base 2.1.1 and the guide rail 2.1.6 is fixed.

The second end clamping single piece includes a limiter that can limit the end of the floor; The limit plate 2.2 at the end of the floor is clamped at the second end of the other end of the bracket 1 as a single piece as a jacking piece 2.3.

In this embodiment, the pressing member 2.3 includes an elastic member; the elastic member includes a spring connecting member and a fitting position; the spring connecting member can expand and contract along the length direction of the floor, and the spring connecting member includes a guide post and a spring, the guide post is a telescopic rod; the spring is sleeved on the guide post; one end of the guide post is connected with the fitting position, and the other end is connected with the bracket; one end of the spring is connected with the fitting position, The other end is connected with the bracket; the fitting position matches the end of the floor and is set on the bracket 1 through a spring connection. Of course, in some other specific embodiments, the pressing member 2.3 includes a mounting table and a top arm, the mounting table is arranged on the bracket, the top arm is rotatably arranged on the mounting table, and the free end of the top arm Fitted to match the end of the floor.

In this embodiment, the second end clamping single piece is slidably arranged on the bracket 1 along the length direction of the floor. In particular, the second end holding single piece further includes a driving piece 3, and the driving piece 3 includes a motor 3, a gear 3 and a rack 3; the motor 3 is arranged on the second end holding piece, The rack 3 is arranged on the bracket 1, the gear 3 is provided with the output section of the motor 3 and it is matched with the rack three-phase, through the output power of the motor 3, the gear 3 rotates, and further cooperates with the rack 3 to realize the second end. The top holding single piece slides on the bracket 1.

In this embodiment, the pressing mechanism includes twenty-one single pressing arms arranged along the length direction of the floor; the single pressing arm includes two pressing arms 3 arranged on both sides of the length direction of the floor; the The pressing arm 3 includes a support column 3.1, a forearm 3.3 and a rear arm 3.2; the support column 3.1 is arranged on the bracket 1; the first end of the rear arm 3.2 and the support column 3.1 and the second end of the rear arm 3.2 and the The front arms 3.3 are connected by the rotating part 3.4; the end of the front arm 3.3 away from the rear arm 3.2 is also provided with a hydraulic cylinder; the free end of the piston rod of the hydraulic cylinder is provided with a pressing cover; the pressing cover Compression for floors. When the hydraulic cylinder works, the free end of the piston rod pushes the pressing cover away from or close to the floor, so as to realize the pressing or loosening action on the floor

In this embodiment, the rotating part 3.4 includes a gear structure or a worm gear structure;

The gear structure includes a stepper motor 1, a gear 1 and a gear 2; the stepper motor 1 is arranged on the rear arm 3.2; the rear arm 3.2 is rotatably arranged on the support column 3.1; the gear 1 is provided with a support column 3.1 On the top, the second gear is arranged at the output end of the stepping motor one, the gear one meshes with the gear two, and the stepping motor one, the gear one and the gear two cooperate to realize that the rear arm 3.2 is relative to the support column 3.1 Rotation, since the first gear is fixedly arranged on the support column, the rear arm is rotatably arranged on the support column, and the second gear of the stepping motor rotates around the first gear to realize the rotation of the rear arm around the support column;

The worm gear structure includes a second stepping motor, a worm arranged at the output end of the second stepping motor, a pin shaft, and a worm wheel sleeved on the pin shaft; the adjacent ends of the rear arm 3.2 and the front arm 3.3 are provided with shafts. The combination of the pin shaft and the pin hole realizes the active connection between the rear arm 3.2 and the forearm 3.3; one side of the worm wheel is fixedly connected with the end of the forearm 3.3 close to the rear arm 3.2; the worm wheel is meshed with the worm; the step The combination of the second motor, the worm gear, the worm and the pin shaft enables the front arm 3.3 to rotate around the pin shaft and relative to the rear arm.

The welding platform for friction stir welding also includes a control cabinet, a hydraulic station and four auxiliary control cabinets; the control cabinet is respectively connected with the four auxiliary control cabinets and the hydraulic station; wherein the two auxiliary control cabinets control Ten pressing arms 3; the other two auxiliary control cabinets each control eleven pressing arms 3; the auxiliary control cabinets are connected with two stepping motors in the pressing arms 3 to control the movements of the pressing arms 3 (including the forearm 3.3 Rotate relative to the rear arm 3.2; and the rear arm 3.2 rotates relative to the support column 3.1; the hydraulic station is respectively connected with the pressing oil cylinder 2.1.3 in the six pressing structures and the hydraulic oil cylinder in the pressing arm for providing pressure; The control cabinet is also connected with the motor 1, the motor 2 and the motor 3. The control cabinet controls the work of the hydraulic station, the auxiliary control cabinet, the motor 1, the motor 2 and the motor 3, thereby controlling the beam 1.1 on the bracket 1 respectively. The sliding, the pressing or releasing action of the pressing structure, the rotation of the pressing arm 3 and the pressing.

The welding steps of using the above-mentioned welding platform for friction stir welding to carry out the friction stir welding of the floor are as follows:

Step 1: Turn on the power and start the hydraulic station;

Step 2: Use the control cabinet to control the driving part 1, and then move the longitudinal beam to a predetermined position to complete the layout of the longitudinal beam;

Step 3: Use the control cabinet to control the pressing arm through the auxiliary control cabinet, and rotate the pressing arm to move the pressing cover to the outside of the table

Step 4: Use the control cabinet to move the fastener to the longest position;

Step 5: Place the floor to be welded on the countertop, align the beginning of the floor with the head-end positioning plate, and the side against the side of the countertop;

Step 6: Use the control cabinet to move the fastener to one end of the floor and push the floor tightly;

Step 7: Using the control of the control cabinet, clamp the first end of the single piece and press the end of the floor close to the positioning plate;

Step 8: Using the control of the control cabinet, move the pressing arms on both sides of the bracket to the two sides of the welding seam to be welded on the floor, and start welding;

Step 9: After the first welding seam is completed, use the control cabinet to move the pressing arms on both sides of the bracket to the two sides of the welding seam of the other floor to be welded, press them tightly, and start welding;

Step 10: Repeat step 9. After all the welding seams are welded, you can remove all the pressing and pressing, and you can turn the floor over. Repeat steps 2 to 9. After welding, you can remove it and complete a piece Welding of floors.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A welding platform for friction stir welding, characterized in that it comprises a bracket (1), an end clamping mechanism (2) and a pressing mechanism; The support (1) is provided with a table top for placing the floor; the table top includes a plurality of transverse beams (1.1) arranged along the length direction of the support (1) and a plurality of longitudinal beams (1.2) arranged along the width direction of the support (1) ); the beam (1.1) is arranged on the bracket (1); the longitudinal beam (1.2) is slidably arranged on the beam (1.1); The end clamping mechanism (2) comprises a first end clamping unit (2.1) and a second end clamping unit, the first end clamping unit (2.1) and the second end clamping unit The clamping single piece is arranged at both ends in the length direction of the bracket (1), and the combination of the first end clamping single piece (2.1) and the second end clamping single piece is used for the two ends of the floor on the countertop. limit; The pressing mechanism is arranged on one side or both sides of the bracket (1) in the length direction, and is used for pressing the floor on the table top. 2. The welding platform according to claim 1, wherein the first end clamping single piece (2.1) comprises a guide rail (2.1.6) and a pressing structure; the guide rail (2.1.6) is provided with On the support (1), the length direction of the guide rail is the same as the width direction of the support; the pressing structure is used for pressing the floor and is slidably arranged on the guide rail (2.1.6). 3. The welding platform according to claim 2, wherein the pressing structure comprises a support seat (2.1.1), a pressing oil cylinder (2.1.3), a cantilever (2.1.4) and a pressing portion ( 2.1.5); the support seat (2.1.1) is slidably arranged on the guide rail (2.1.6); the pressing cylinder (2.1.3) is arranged on the support seat (2.1.1); the cantilever ( The first end of 2.1.4) is set at the output end of the compression cylinder (2.1.3); the second end of the cantilever (2.1.4) is provided with a compression part (2.1.5), which is used for the compression cylinder (2.1). .3) Can drive the cantilever (2.1.4) and the pressing part (2.1.5) to press or loosen the floor. 4. The welding platform according to claim 3, characterized in that, the pressing structure further comprises a locking member (2.1.1. 2); the locking member (2.1.2) includes bolts and threaded holes arranged on the support seat (2.1.1); the bolts and the threaded holes cooperate to realize the support seat (2.1.1) and the guide rail (2.1) .6) The relative position between the fixed. 5 . The welding platform according to claim 2 , wherein the second end clamping single piece comprises a limiter that can limit the end of the floor; the limiter has an energy clip. 6 . The limit plate (2.2) or the jacking piece (2.3) at the end of the closing floor. 6. The welding platform according to claim 5, characterized in that, the pressing member (2.3) comprises a mounting platform and a top arm, the mounting platform is arranged on a bracket, and the top arm is rotatably arranged on the mounting platform On the table, the free end of the top arm is provided with a fitting position matching the end of the floor. 7. The welding platform according to claim 5, characterized in that, the pressing member (2.3) comprises an elastic member; the elastic member comprises a spring connecting member and a fitting position; The length direction is telescopic, and the fitting position matches the end of the floor and is arranged on the bracket (1) through a spring connecting piece. 8. The welding platform according to claim 5 or 7, wherein the second end clamping single piece is slidably arranged on the bracket (1) along the length direction of the floor. 9 . The welding platform according to claim 1 , wherein the pressing mechanism comprises at least two single pressing arm pieces arranged along the length direction of the floor; the single pressing arm piece comprises two pieces arranged on both sides of the length direction of the floor. 10 . The two pressing arms (3) of a The first end of the rear arm (3.2) and the support column (3.1) and the second end of the rear arm (3.2) and the forearm (3.3) are connected by a rotating part (3.4); the forearm ( 3.3) A hydraulic cylinder is also provided at one end away from the rear arm (3.2); a compression cover is provided on the free end of the piston rod of the hydraulic cylinder; the compression cover is used for the compression of the floor. 10. The welding platform according to claim 9, wherein the rotating part (3.4) comprises a gear structure or a worm gear structure; The gear structure includes a first stepping motor, a first gear and a second gear; the first stepping motor is arranged on the rear arm (3.2); the rear arm (3.2) is rotatably arranged on the support column (3.1); the The first gear is arranged on the support column (3.1), the second gear is arranged on the output end of the stepping motor one, the gear one is meshed with the gear two, and the stepping motor one, the gear one and the gear two are matched to realize The rear arm (3.2) rotates relative to the support column (3.1); The worm gear structure includes a second stepping motor, a worm arranged at the output end of the second stepping motor, a pin shaft, and a worm wheel sleeved on the pin shaft; the end of the rear arm (3.2) adjacent to the front arm (3.3) Both are provided with shaft holes, and the combination of the pin shaft and the pin hole realizes the movable connection between the rear arm (3.2) and the forearm (3.3); one side of the worm gear is fixedly connected with the end of the forearm (3.3) close to the rear arm (3.2) the worm gear is meshed with the worm; the combination of the second stepper motor, the worm gear, the worm and the pin shaft realizes that the front arm (3.3) rotates around the pin shaft and relative to the rear arm.

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