CN213646269U - Automatic welding mould of aluminum alloy frame - Google Patents

Abstract

The utility model relates to an automatic welding mould of aluminum alloy frame, which comprises a base, be equipped with first welding mechanism, second welding mechanism, third welding mechanism and robot on the base, first welding mechanism includes that first claw fixed establishment, lower fork fixed establishment and the clamping mechanism of colluding, second welding mechanism includes that the second colludes claw fixed establishment, goes up fork and branch fixed establishment and fastening device, third welding mechanism includes that five-way pipe fixed establishment, third collude claw fixed establishment and well tub of fixed establishment, the utility model discloses can realize the automatic weld of putting in order the car frame, welding precision and welding efficiency have all obtained very big promotion, help promoting whole frame automated production's process.

Description

Automatic welding mould of aluminum alloy frame

Technical Field

The utility model relates to a welding mould, concretely relates to automatic welding mould of aluminum alloy frame.

Background

With the increasing living standard of people, the application field of bicycles has been extended from the traditional walking tools to the field of leisure sports, in particular to the field of fitness. The manufacturing materials of the bicycle are replaced by the traditional cast iron and steel materials to lighter metal materials, and the bicycles made of aluminum alloy, titanium alloy, magnesium alloy, titanium magnesium alloy and other materials have the characteristics of lightness, attractiveness and the like, are more and more popular among the masses, particularly sports enthusiasts in recent years, and have rapidly increased market demands.

In the prior art, bicycle frames are formed by welding a plurality of frame pipe fittings, for example, positions between a lower fork and a hook claw, between an upper fork and a support rod, between the lower fork and the hook claw and the like need to be welded, at present, manual or semi-automatic methods are mostly adopted for welding aluminum alloy frames, and the lower welding efficiency and the welding quality of the manual or semi-automatic methods cannot meet the requirements of market on the increase of bicycle demand and high quality.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model provides an automatic welding mould of aluminum alloy frame, this welding mould utilize the robot to realize automated production in whole welding process to aluminum alloy frame welded efficiency and welded quality have been improved.

The utility model discloses a solve the technical scheme that its technical problem adopted and be:

an automatic welding mould for an aluminum alloy frame comprises a base, wherein a robot, a first welding mechanism, a second welding mechanism and a third welding mechanism are arranged on the base, the first welding mechanism comprises a first hook claw fixing mechanism for fixing a hook claw, a lower fork fixing mechanism for fixing a lower fork and a clamping mechanism, and the clamping mechanism is used for pushing the lower fork fixing mechanism to enable the lower fork on the lower fork fixing mechanism and the hook claw on the first hook claw fixing mechanism to be mutually attached so as to facilitate the welding of the robot;

the second welding mechanism comprises a second claw fixing mechanism for fixing the claw, an upper fork and support rod fixing mechanism for fixing the upper fork and the support rod and a fastening mechanism, wherein the fastening mechanism is used for pushing the upper fork and support rod fixing mechanism to enable the upper fork on the upper fork and support rod fixing mechanism to be attached to the claw on the second claw fixing mechanism;

the third welding structure comprises a lower fork fixing profile block for fixing a lower fork, an upper fork fixing pressing block for fixing an upper fork, a five-way pipe fixing mechanism for fixing a five-way pipe, a third hook claw fixing mechanism for fixing hook claws and a middle pipe fixing mechanism for fixing a middle pipe.

Preferably, the first welding mechanism further comprises a first frame, a first base is arranged on the first frame, a workbench is fixedly arranged at the upper end of the first base, a supporting plate is fixedly connected to one side of the workbench, the first claw-hooking fixing mechanism is arranged on the supporting plate, and the lower fork-fixing mechanism and the clamping mechanism are arranged on the workbench.

Preferably, the first hook claw fixing mechanism comprises a first hook claw positioning inner wide die and first clamping pieces respectively arranged on two sides of the first hook claw positioning inner wide die, the first hook claw positioning inner wide die is used for placing two hook claws, the first clamping pieces are used for clamping and fixing the hook claws, the lower fork fixing mechanism comprises a first pipe fitting contour block used for placing a lower fork, and the first clamping pieces are quick clamps;

fixed mounting backing plate in the backup pad between the wide mould in first clamping piece and the first claw location of colluding, install one horizontally in the backing plate and press from both sides tight post and this presss from both sides tight post and can horizontally slide in the backing plate, press from both sides fast and connect in this presss from both sides tight post and can promote this to press from both sides tight post and will collude the claw and press from both sides tightly.

Preferably, the workbench is provided with a first sliding plate and two parallel first guide rails, the first sliding plate is slidably mounted on the first guide rails, the first pipe fitting copying block is fixed on the first sliding plate, the first pipe fitting copying block is provided with a lower fork copying groove for placing a lower fork,

two sides of the first sliding plate are respectively fixedly provided with a first strip-shaped plate, the first strip-shaped plate is provided with a first supporting block for supporting the lower fork, the first supporting block can adjust the upper and lower positions relative to the first strip-shaped plate,

the first strip-shaped plate is provided with a slot, the lower end of the first supporting block is inserted into the slot and fixed through a bolt, the first supporting block is provided with a U-shaped slot matched with the lower fork, the workbench is provided with a plurality of jacks, the first sliding plate is provided with a long hole corresponding to the jack, and the first sliding plate is fixed by inserting positioning bolts into the long hole and the jack respectively;

the lower fork fixing mechanism further comprises a supporting rod pressing mechanism, a supporting rod profiling groove used for placing a supporting rod is further formed in the first pipe fitting profiling block, the supporting rod pressing mechanism comprises a cushion column and a pressing strip, a long round hole and a mounting hole are formed in the cushion column, the cushion column is locked into the long round hole through a bolt and fixed on the first sliding plate, the pressing strip is horizontally inserted into the mounting hole, the pressing strip can horizontally move in the mounting hole, and when the lower fork fixing mechanism is fixed, the pressing strip is pressed on the upper surface of the supporting rod.

Preferably, the clamping mechanism is arranged on a workbench on the other side of the lower fork fixing mechanism, the clamping mechanism comprises a clamping plate and a second clamping piece, the clamping plate is located between the lower fork fixing mechanism and the second clamping piece, the second clamping piece is a quick clamp, and the second clamping piece can push the clamping plate to be attached to the lower fork fixing mechanism so as to push a lower fork on the lower fork fixing mechanism to be attached to a hook claw on the first hook claw fixing mechanism;

the mounting plate is fixedly arranged on the workbench, the rapid clamp and the first cushion block are fixedly arranged on the mounting plate, a sliding groove is horizontally arranged on the first cushion block, a sliding rod is arranged in the sliding groove, and one end of the sliding rod is fixedly connected with the clamping plate.

Preferably, the second welding mechanism comprises a second base, the second hook claw fixing mechanism, the upper fork and support rod fixing mechanism and the fastening mechanism are arranged on the second base, the second hook claw fixing mechanism comprises a second hook claw positioning inner wide die and first fasteners respectively arranged on two sides of the second hook claw positioning inner wide die, the second hook claw positioning inner wide die is used for placing two hook claws, the first fasteners are used for clamping and fixing the hook claws, the upper fork and support rod fixing mechanism comprises a second pipe fitting profile block, an upper fork fixing mechanism and a support rod fixing mechanism, an upper fork profiling groove used for placing an upper fork and a support rod profiling groove used for placing a support rod are arranged on the second pipe fitting profile block, the fastening mechanism is used for pushing the second pipe fitting profile block to enable the upper fork and the hook claws to be mutually attached, the upper fork fixing mechanism is used for pressing the upper fork in the second pipe fitting profile block, the supporting rod stabilizing mechanism is used for pressing the supporting rod in the second pipe fitting profiling block;

the second hook claw fixing mechanism further comprises a second fastener, the second hook claw positioning inner wide die is fixed on the second base through the second fastener, the first fastener is an adjusting nut, the second hook claw positioning inner wide die is internally provided with a screw rod, and two ends of the screw rod are respectively sleeved with the adjusting nut.

Preferably, a second sliding plate and two parallel second guide rails are arranged on the second base, the second sliding plate is slidably mounted on the second guide rails, and the second pipe fitting contour block is fixed on the second sliding plate;

the two sides of the second sliding plate are respectively and fixedly provided with a second strip-shaped plate, a second supporting block used for supporting the upper fork is arranged on the second strip-shaped plate, the second supporting block can be used for adjusting the upper position and the lower position relative to the second strip-shaped plate, a slot is formed in the second strip-shaped plate, the lower end of the second supporting block is inserted into the slot and fixed through a bolt, a U-shaped groove matched with the upper fork is formed in the second supporting block, a plurality of jacks are formed in the second base, first long round holes corresponding to the jacks are formed in the second sliding plate, and the second sliding plate is fixed by respectively inserting positioning bolts into the first long round holes and the jacks.

Preferably, the supporting rod stabilizing mechanism comprises a second cushion block and a pressing piece, a second long circular hole and a mounting hole are formed in the second cushion block, the second cushion block is locked into the second long circular hole through a bolt and fixed on the second sliding plate, the pressing piece is horizontally inserted into the mounting hole and can horizontally move in the mounting hole, and when the supporting rod stabilizing mechanism is fixed, the pressing piece 326 is pressed on the upper surface of the supporting rod.

Preferably, the fastening mechanism comprises a fastening plate and a third fastener, the fastening plate is located between the upper fork and the support rod fixing mechanism and the third fastener, the third fastener is a quick clamp, and the quick clamp can push the fastening plate to be attached to the upper fork and the support rod fixing mechanism so that the upper fork is attached to the hook claw;

the upper fork stabilizing mechanism comprises a connecting plate, a pressing plate and a locking piece, the locking piece is arranged in the fastening plate, one end of the connecting plate is fixedly connected with the pressing plate, the upper end of the locking piece is inserted into a third long round hole in the other end of the connecting plate, and the lower end of the locking piece is connected with a spring.

Preferably, the third welding mechanism further comprises a second frame, the lower fork fixing profiling block, the upper fork fixing pressing block, the five-way pipe fixing mechanism, the third hook claw fixing mechanism and the middle pipe fixing mechanism are arranged on the second frame, the five-way pipe fixing mechanism comprises a third supporting block and first driving mechanisms located on two sides of the third supporting block, the first driving mechanisms are used for clamping the five-way pipe, the third hook claw fixing mechanism comprises a third hook claw positioning inner wide die and second driving mechanisms located on two sides of the third hook claw positioning inner wide die, the third hook claw positioning inner wide die is used for placing hook claws and clamping and fixing the hook claws through the second driving mechanisms, the middle pipe fixing mechanism comprises a third sliding plate and a third driving mechanism fixed on the third sliding plate, and the third driving mechanism is used for fixing the middle pipe.

Preferably, the third support block is fixedly arranged on the second rack, the first driving mechanism is a first driving cylinder, the first driving cylinder is horizontally fixed on the third support block, and a piston rod of the first driving cylinder is fixedly connected with a first pressing block;

the second driving mechanism is a second driving air cylinder, the third hook claw positioning inner wide die is fixed on the second rack through a fourth supporting block, the second driving air cylinder is located on the fourth supporting blocks on two sides of the third hook claw positioning inner wide die, and a piston rod of the second driving air cylinder is fixedly connected with a second pressing block.

Preferably, the second rack is further provided with a first adjusting mechanism and a second adjusting mechanism, the first adjusting mechanism is connected to the second rack, the second adjusting mechanism is connected to the first adjusting mechanism, the third sliding plate is slidably arranged on the second adjusting mechanism, the second adjusting mechanism can drive the sliding plate to slide, and the first adjusting mechanism can drive the second adjusting mechanism and the third sliding plate to rotate simultaneously.

Preferably, first adjustment mechanism includes first support, first screw rod, first manual wheel and first regulating block, first support fixed connection is in the second frame, be equipped with first screw rod on the first support, first regulating block spiro union in first screw rod, the first manual wheel of one end fixed connection of first screw rod.

Preferably, the second adjusting mechanism comprises a second support, a second screw rod, a second manual wheel and a second adjusting block, the second support is fixedly connected to the first adjusting block, the second support is provided with the second screw rod, the second adjusting block is screwed to the second screw rod, one end of the second screw rod is fixedly connected to the second manual wheel, and the lower end of the second support is rotatably sleeved on the first driving mechanism;

a sliding groove is formed in the second support along the height direction of the second support, the third sliding plate is slidably arranged in the sliding groove of the second support and fixedly connected to the second adjusting block, and a middle pipe stop block is further arranged on the third sliding plate;

the third driving mechanism is a third driving air cylinder, and a piston rod of the third driving air cylinder is fixedly provided with a third pressing block.

The utility model has the advantages that:

1) the utility model discloses mainly include first welding mechanism, second welding mechanism and third welding mechanism, utilize first welding mechanism to fix the lower fork, collude claw and branch, and utilize the robot to weld it and form into an organic whole lower fork frame, utilize second welding mechanism to fix upper fork and branch, and utilize the robot to weld it and form into an organic whole upper fork frame, utilize third welding mechanism to fix preceding tripod, upper fork frame and lower fork frame, utilize the robot to weld into an organic whole car frame at last, the utility model discloses an automatic welding of whole frame utilizes a plurality of robots to work in turn, has improved welding efficiency and welding precision height;

2) in order to meet the welding requirements of frames with different specifications, only the hook claw positioning inner wide die, the pipe fitting contour block and the like need to be replaced, and the main body of the die does not need to be replaced, so that the die can be replaced quickly, and the uninterrupted production of a machine is met; the utility model reasonably designs the positions of the equipment and the mould, the welding point position of the clearance-avoiding robot, the welding rate can be controlled at 70-80%, the welding rate can be controlled at more than 90%, the rear 15 personnel standard lines of the utility model replace the traditional 23-25 personnel manual lines, and the yield is simultaneously improved from 400/10 h to 450/10 h, thereby not only reducing the manpower, but also increasing the yield, and having practicability;

3) the robot of the utility model uses the long-neck welding gun, is easier to extend and retract, and the control of the welding angle is more flexible; the robot adopted when the upper fork frame and the lower fork frame are welded is a single-machine robot station, a negative shaft is not arranged, a reserved welding program is adopted to weld a first station or a second station, a program compiling path adopts movl, the path is more stable, and the first station or the second station can be used for welding the same vehicle type and can also be used for welding different vehicle types simultaneously; the third welding mechanism adopts a single robot station, two negative shafts are configured, an appointed welding program is adopted, a first station or a second station is welded, a program compiling path adopts a smovl and smovc matching mode, the path is more stable, the same station and the second station can be used for welding the same vehicle type, and different vehicle types can be welded simultaneously; the welding process adopts a Fonis CMT welding technology, has lower heat input, is more suitable for welding aluminum alloy materials of thin pipes, adopts a CMT + P welding mode when the pipes are thick (the wall thickness is more than 2.5mm), has attractive welding bead fish scale formation and welding bead penetration meeting the strength requirement, adopts a standard CMT welding mode when the aluminum alloy thin pipes are thin (the wall thickness is less than 2.5mm), has attractive welding bead fish scale formation, has small splashing and heat input, and is difficult to permeate.

Drawings

FIG. 1 is a simplified diagram of the structure of the present invention;

FIG. 2 is a schematic structural view of a first welding mechanism of the present invention;

fig. 3 is a top view of a first welding mechanism of the present invention;

fig. 4 is a schematic structural view of a second welding mechanism in the present invention;

fig. 5 is a top view of a second welding mechanism of the present invention;

fig. 6 is a schematic structural view of a third welding mechanism in the present invention;

fig. 7 is another schematic structural diagram of a third welding mechanism according to the present invention;

in the figure: 100-base, 101-robot,

200-a first welding mechanism, 201-a first frame, 202-a first base, 203-a workbench, 204-a support plate, 205-a first guide rail, 210-a first hook claw fixing mechanism, 211-a first hook claw positioning inner wide die, 212-a first clamping piece, 213-a backing plate, 214-a clamping column, 220-a lower fork fixing mechanism, 221-a first pipe fitting profile block, 222-a first sliding plate, 223-a first strip plate, 224-a first support block, 225-a backing column, 226-a pressing strip, 230-a clamping mechanism, 231-a clamping plate, 232-a second clamping piece, 233-a mounting plate, 234-a first backing block, 235-a sliding rod,

300-a second welding mechanism, 301-a second base, 302-a second guide rail, 310-a second hook claw fixing mechanism, 311-a second hook claw positioning inner wide die, 312-a first fastener, 313-a second fastener, 320-a fork and support rod fixing mechanism, 321-a second pipe fitting contour block, 322-a second sliding plate, 323-a second strip plate, 324-a second support block, 325-a second cushion block, 326-a pressing piece, 327-a connecting plate, 328-a pressing plate, 329-a locking piece, 330-a fastening mechanism, 331-a fastening plate, 332-a third fastener,

400-a third welding mechanism, 401-a second frame, 402-a lower fork fixing profile block, 403-an upper fork fixing pressing block, 410-a five-way pipe fixing mechanism, 411-a third supporting block, 412-a first driving cylinder, 413-a first pressing block, 420-a third claw fixing mechanism, 421-a fourth supporting block, 422-a third claw positioning inner wide die, 423-a second driving cylinder, 430-a middle pipe fixing mechanism, 431-a third sliding plate, 432-a third driving cylinder, 433-a third pressing block, 434-a middle pipe stopper, 440-a first adjusting mechanism, 441-a first bracket, 442-a first screw rod, 443-a first manual wheel, 444-a first adjusting block, 450-a second adjusting mechanism, 451-a second bracket, 452-a second screw rod, 453-a second manual wheel, 454-a second regulating block,

500-frame, 501-five-way pipe, 502-middle pipe, 503-hook claw, 504-upper fork, 505-lower fork and 506-strut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Example (b): as shown in fig. 1-7, an automatic welding mould for an aluminum alloy frame is characterized in that: the welding robot comprises a base 100, wherein a robot 101, a first welding mechanism 200, a second welding mechanism 300 and a third welding mechanism 400 are arranged on the base 100, the first welding mechanism 200 comprises a first hook claw fixing mechanism 210 for fixing a hook claw 503, a lower fork fixing mechanism 220 for fixing a lower fork 505 and a clamping mechanism 230, and the clamping mechanism 230 is used for pushing the lower fork fixing mechanism 220 to enable the lower fork 505 on the lower fork fixing mechanism and the hook claw 503 on the first hook claw fixing mechanism 210 to be mutually attached so as to facilitate the welding of the robot 101;

the second welding mechanism 300 comprises a second claw fixing mechanism 310 for fixing the claw, an upper fork and strut fixing mechanism 320 for fixing the upper fork 504 and the strut 506, and a fastening mechanism 330, wherein the fastening mechanism 330 is used for pushing the upper fork and strut fixing mechanism 320 to enable the upper fork 504 on the upper fork and strut fixing mechanism 320 and the claw 503 on the second claw fixing mechanism 310 to be mutually attached;

the third welding structure 400 includes a lower fork fixing profile block 402 for fixing a lower fork 505, an upper fork fixing pressing block 403 for fixing an upper fork 504, a five-way pipe fixing mechanism 410 for fixing a five-way pipe 501, a third hook claw fixing mechanism 420 for fixing a hook claw 503, and a middle pipe fixing mechanism 430 for fixing a middle pipe 502.

The utility model is used for carrying out automatic welding to frame 500 multiple spot, frame 500 includes five-way pipe 501, well pipe 502, colludes claw 503, goes up fork 504, lower fork 505 and branch 506, the utility model discloses mainly include three big steps in the operation process, first step, first welding mechanism 200 will descend the fork with collude the claw fixed and make the lower fork and collude the mutual laminating of the department of waiting to weld of claw, utilize robot 101 to lower fork and collude the claw and wait to weld the department of waiting to weld; secondly, the second welding mechanism 300 fixes the upper fork and the support rod, enables the upper fork to be attached to the to-be-welded position of the support rod, and utilizes the robot 101 to weld the to-be-welded position of the upper fork and the support rod; the third step, third welding mechanism 400 is fixed with the lower fork that welds with colluding the claw, go up fork and branch and preceding triangle respectively, utilizes robot 101 to wait that the welding department is waited to welding department, go up the fork and collude the claw with the five-way pipe and wait that the welding department is waited to and well pipe and last fork of colluding the claw welds, forms the good frame of welding promptly, the utility model provides high welding process's efficiency and welded precision help promoting the process of whole frame automated production.

As shown in fig. 2 and 3, the first welding mechanism 200 further includes a first frame 201, a first base 202 is disposed on the first frame 201, a worktable 203 is fixedly disposed at an upper end of the first base 202, a supporting plate 204 is fixedly connected to one side of the worktable 203, the first claw fixing mechanism 210 is disposed on the supporting plate 204, and the lower fork fixing mechanism 220 and the clamping mechanism 230 are disposed on the worktable 203. The first base 202 and the workbench 203 are fixedly connected through a support column, the supporting plate 204 and the workbench 203 are fixedly connected through a connecting block, the supporting plate 204 is a long strip plate, and a certain distance is arranged between the supporting plate and the workbench, as shown in fig. 2, the first hook claw fixing mechanism 210, the lower fork fixing mechanism 220 and the clamping mechanism 230 are sequentially arranged from left to right.

The first hook claw fixing mechanism 210 comprises a first hook claw positioning inner wide die 211 and first clamping pieces 212 respectively arranged on two sides of the first hook claw positioning inner wide die 211, the first hook claw positioning inner wide die 211 is used for placing two hook claws 503, the first clamping pieces 212 are used for clamping and fixing the hook claws 503, the lower fork fixing mechanism 220 comprises a first pipe fitting contour block 221 used for placing a lower fork 505, and the first clamping pieces 212 are quick clamps;

a backing plate 213 is fixedly arranged on the supporting plate 204 between the first clamping piece 212 and the first hook claw positioning inner wide die 211, a clamping column 214 is horizontally arranged in the backing plate 213, the clamping column 214 can horizontally slide in the backing plate, and the quick clamp is connected to the clamping column and can push the clamping column 214 to clamp the hook claw 503. The first hook positioning inner wide die 211 is detachably mounted in the middle of the supporting plate 204, two groups of first clamping pieces 212 are respectively mounted at two ends of the supporting plate 204, the two hook claws 503 are respectively attached to two ends of the first hook positioning inner wide die and clamp the hook claws tightly by adjusting the quick clamp, the quick clamp can be a conventional quick clamp on the market, and detailed description is omitted here, the first hook positioning inner wide die 211 is fixed on the supporting plate 204 through bolts, the first hook positioning inner wide die 211 with different specifications can be replaced as required, and then the two hook claws are placed at two ends of the first hook positioning inner wide die and clamp the hook claws tightly by the quick clamp, so that welding requirements of frames with various specifications can be met, and quick die change can be completed.

The workbench 203 is provided with a first sliding plate 222 and two parallel first guide rails 205, the first sliding plate 222 is slidably mounted on the first guide rails 205, the first pipe fitting profile block 221 is fixed on the first sliding plate 222, and the first pipe fitting profile block 221 is provided with a lower fork profile groove for placing a lower fork 505,

a first strip-shaped plate 223 is fixedly installed on each side of the first sliding plate 222, a first supporting block 224 for supporting the lower fork 505 is arranged on the first strip-shaped plate 223, the first supporting block 224 can adjust the up-and-down position relative to the first strip-shaped plate 223,

the first strip-shaped plate 223 is provided with a slot, the lower end of the first supporting block 224 is inserted into the slot and fixed by a bolt, the first supporting block 224 is provided with a U-shaped slot matched with the lower fork 505, the workbench 203 is provided with a plurality of jacks, the first sliding plate 222 is provided with a long hole corresponding to the jack, and the first sliding plate 222 is fixed by inserting a positioning bolt into the long hole and the jack respectively; a first sliding plate 222 capable of sliding along the workbench 203 is arranged on the workbench 203, a first pipe fitting profile block 221 is fixedly arranged on the first sliding plate, a profile groove matched with the lower fork 505 is arranged on the first pipe fitting profile block 221, one end of the lower fork 505 close to the five-way pipe 501 is fixedly arranged in the profile groove, and before welding, the clamping mechanism 230 is used for pushing the first sliding plate 222 to slide towards the hook claw 503 until the lower fork 505 and the hook claw 503 are attached to each other; in order to further improve the stability of the lower fork during welding, a first strip-shaped plate 223 is respectively arranged on the first sliding plate on the front side and the rear side of the first pipe fitting profile block 221, a first supporting block 224 is fixedly arranged on the first strip-shaped plate 223, the first supporting block 224 is arranged close to the supporting plate 204, and the lower fork is just arranged in a U-shaped groove on the supporting block; the height of the first supporting block 224 is adjusted to meet the fixing requirements of the lower forks with different specifications, as shown in fig. 3, a plurality of jacks are arranged on the workbench, a long hole is arranged on the first sliding plate, and after the position of the first sliding plate 222 is adjusted, the jacks and the long hole are locked by the aid of the positioning bolts to fix the position of the sliding plate.

The lower fork fixing mechanism 220 further comprises a supporting rod pressing mechanism, a supporting rod profiling groove used for placing the supporting rod 506 is further formed in the first pipe fitting profiling block 221, the supporting rod pressing mechanism comprises a cushion column 225 and a pressing strip 226, a long circular hole and a mounting hole are formed in the cushion column 225, the cushion column is locked into the long circular hole through a bolt and fixed on the first sliding plate 222, the pressing strip 226 is horizontally inserted into the mounting hole, the pressing strip can horizontally move in the mounting hole, and when the lower fork fixing mechanism is fixed, the pressing strip 226 is pressed on the upper surface of the supporting rod 506. As shown in fig. 3, the position of the pad column 225 on the first sliding plate 222 in the left-right direction can be adjusted by the arranged oblong hole, one end of the pressing strip 226 is inserted into the mounting hole of the pad column, the other end extends to the supporting rod 506, and after the supporting rod 506 is placed, the pressing strip is pulled out rightwards to be pressed on the supporting rod 506, so that the stability of the supporting rod in welding is further improved; and placing the supporting rod 506 by using a supporting rod profiling groove, enabling the supporting rod and the part to be welded of the lower fork to be mutually attached, pressing the supporting rod by using a supporting rod pressing mechanism, and finally welding the part to be welded of the supporting rod and the lower fork by using a robot.

The clamping mechanism 230 is arranged on the workbench 203 on the other side of the lower fork fixing mechanism 220, the clamping mechanism 230 comprises a clamping plate 231 and a second clamping piece 232, the clamping plate 231 is located between the lower fork fixing mechanism 220 and the second clamping piece 232, the second clamping piece 232 is a quick clamp, and the second clamping piece 232 can push the clamping plate to be attached to the lower fork fixing mechanism so as to push the lower fork 505 on the lower fork fixing mechanism 220 to be attached to the hook 503 on the first hook fixing mechanism;

the workbench 203 is fixedly provided with a mounting plate 233, the mounting plate is fixedly provided with a quick clamp and a first cushion block 234, the first cushion block is provided with a horizontally arranged sliding groove, a sliding rod 235 is arranged in the sliding groove, and one end of the sliding rod 235 is fixedly connected with a clamping plate 231. The mounting plate 233 and the first hook fixing mechanism 210 are respectively located on two sides of the lower fork fixing mechanism, the first cushion block 234 is located between the quick clamp and the first sliding plate 222, the sliding rod 235 is horizontally tightly fitted in a sliding groove on the first cushion block 234, two ends of the sliding rod 235 protrude out of the first cushion block, one end of the first cushion block close to the first sliding plate 222 is fixedly connected with the clamping plate 231, the other end of the first cushion block is connected to the quick clamp, when positioning is needed, the quick clamp is adjusted to push the sliding rod 235 forward, so that the clamping plate 231 is attached to the first pipe fitting contour block 221, and the sliding plate is driven to slide forward to enable the lower fork 505 on the sliding plate to be attached to the hook 503 on the first hook fixing mechanism.

As shown in fig. 4 and 5, the second welding mechanism 300 includes a second base 301, the second hooking jaw fixing mechanism 310, the upper fork and strut fixing mechanism 320 and the fastening mechanism 330 are disposed on the second base, the second hooking jaw fixing mechanism 310 includes a second hooking jaw positioning inner wide die 311 and first fasteners 312 respectively disposed at two sides of the second hooking jaw positioning inner wide die 311, the second hooking jaw positioning inner wide die 311 is used for placing two hooking jaws 503, the first fasteners 312 are used for clamping and fixing the hooking jaws 503, the upper fork and strut fixing mechanism 320 includes a second pipe-shaped block 321, an upper fork stabilizing mechanism and a strut stabilizing mechanism, the second pipe-shaped block 321 is provided with an upper fork contour groove for placing the upper fork 504 and a strut contour groove for placing the strut 506, the fastening mechanism 330 is used for pushing the second pipe-shaped block 321 to make the upper fork 504 and the hooking jaw 503 fit with each other, the upper fork securing mechanism is used to compress an upper fork 504 in the second pipe profiling block, and the strut securing mechanism is used to compress a strut 506 in the second pipe profiling block.

As shown in fig. 4 and 5, the length direction of the second base 301 is defined as the left-right direction, the second hook claw fixing mechanism 310, the upper fork and strut fixing mechanism 320 and the fastening mechanism 330 are sequentially arranged on the second base 301 from left to right, an appropriate second hook claw positioning inner wide die 311 is selected and fixed on the second base 301, two hook claws 503 are placed on the second hook claw positioning inner wide die 311 and clamped by first fasteners 312, an appropriate second pipe-shaped block 321 is selected and mounted on the second sliding plate 322, two upper forks 504 are placed in the upper fork-shaped grooves, the strut 506 is placed in the strut-shaped grooves, at this time, the upper forks and the to-be-welded portions of the strut are mutually attached, the fastening mechanism 330 pushes the upper fork and strut fixing mechanism 320 to make the upper forks 504 and the hook claws 503 tightly abut against each other, and finally the upper fork stabilizing mechanism and strut stabilizing mechanism are adjusted to make the upper forks 504 and the strut 506 press on the upper surfaces of the upper forks 504 and the strut 506 respectively, the robot 101 is used to weld the parts to be welded of the upper fork and the support rod, and the two upper forks are connected through the support rod.

The second hook fixing mechanism 310 further includes a second fastening member 313, the second hook positioning inner wide die 311 is fixed on the second base 301 through the second fastening member 313, the first fastening member 312 is an adjusting nut, a screw rod is arranged in the second hook positioning inner wide die 311, and two ends of the screw rod are respectively sleeved with an adjusting nut. When the hook 503 is installed on the second hook positioning inner wide die 311, the adjusting nuts at two ends are screwed to clamp the hook, one end of the second fastening piece 313 is hinged to the second base 301, the selected second hook positioning inner wide die 311 is placed on the second base 301, the second fastening piece 313 is rotated to compress the second hook positioning inner wide die 311 on the second base, and the second hook positioning inner wide die 311 can be quickly replaced through the second fastening piece 313 to meet the welding requirements of products of different specifications.

A second sliding plate 322 and two parallel second guide rails 302 are arranged on the second base 301, the second sliding plate 322 is slidably mounted on the second guide rails 302, and the second pipe fitting contour block 321 is fixed on the second sliding plate 322; a second sliding plate 322 capable of sliding along the second base 301 is arranged on the second base 301, a second pipe fitting contour block 321 is fixedly installed on the second sliding plate, contour grooves matched with the upper fork 504 and the supporting rod 506 are formed in the second pipe fitting contour block 321, the upper fork 504 and the supporting rod 506 are placed in the respective contour grooves, the positions to be welded of the upper fork and the supporting rod are mutually attached, before welding, the fastening mechanism 330 is used for pushing the second sliding plate 322 to slide towards the position of the hook claw 503 until the upper fork 504 and the hook claw 503 are mutually attached;

two sides of the second sliding plate 322 are respectively and fixedly provided with a second strip-shaped plate 323, the second strip-shaped plate 323 is provided with a second supporting block 324 for supporting the upper fork 504, the second supporting block 324 can adjust the upper position and the lower position relative to the second strip-shaped plate 323, the second strip-shaped plate 323 is provided with a slot, the lower end of the second supporting block 324 is inserted into the slot and fixed through a bolt, the second supporting block 324 is provided with a U-shaped slot matched with the upper fork 504, the second base 301 is provided with a plurality of jacks, the second sliding plate 322 is provided with first oblong holes corresponding to the jacks, and the second sliding plate 322 is fixed by respectively inserting positioning bolts into the first oblong holes and the jacks. In order to further improve the stability of the upper fork and the support rod during welding, a second strip-shaped plate 323 is respectively arranged on the second sliding plate on the front side and the rear side of the second pipe fitting contour block 321, a second supporting block 324 is fixedly arranged on the second strip-shaped plate 323, the second supporting block 324 is arranged close to the second claw fixing mechanism 310, and the upper fork is just arranged in a U-shaped groove on the second supporting block; the fixing requirements of forks with different specifications are met by adjusting the height of the second supporting block 324, as shown in fig. 5, a plurality of jacks are arranged on the second base, a first long round hole is arranged on the sliding plate, and after the position of the second sliding plate 322 is adjusted, the jacks and the first long round hole are locked by using the positioning bolts to fix the position of the second sliding plate.

The supporting rod stabilizing mechanism comprises a second cushion block 325 and a pressing piece 326, a second long circular hole and a mounting hole are formed in the second cushion block 325, the second cushion block is locked into the second long circular hole through a bolt and fixed on the second sliding plate 322, the pressing piece 326 is horizontally inserted into the mounting hole, the pressing piece can horizontally move in the mounting hole, and when the supporting rod stabilizing mechanism is fixed, the pressing piece 326 is pressed on the upper surface of the supporting rod 506. As shown in fig. 4, the position of the second pad 325 on the second base 301 in the left-right direction can be adjusted by the second oblong hole, one end of the pressing member 326 is inserted into the mounting hole of the second pad, and the other end extends to the supporting rod 506, and after the supporting rod 506 is placed, the pressing member is pulled out rightward to be pressed on the supporting rod 506, so that the stability of the supporting rod in welding is further improved.

The fastening mechanism 330 includes a fastening plate 331 and a third fastener 332, the fastening plate 331 is located between the upper fork and the strut fixing mechanism 320 and the third fastener 332, the third fastener 332 is a quick clip, and the quick clip can push the fastening plate 331 to be attached to the upper fork and the strut fixing mechanism 320 so as to attach the upper fork 504 to the hook claw 503; when positioning is needed, the quick clamp is adjusted, the quick clamp pushes the fastening plate 331, and the fastening plate pushes the second sliding plate to move forward, so that the upper fork 504 on the second sliding plate is attached to the hook claw 503 on the second hook claw fixing mechanism.

The upper fork fixing mechanism comprises a connecting plate 327, a pressing plate 328 and a locking piece 329, wherein the locking piece 329 is arranged in the fastening plate 331, one end of the connecting plate 327 is fixedly connected with the pressing plate 328, the upper end of the locking piece 329 is inserted into a third long circular hole at the other end of the connecting plate, and the lower end of the locking piece 329 is connected with a spring. The pressing plate 328 and the connecting plate 327 are arranged perpendicularly, after the position of the upper fork is determined, the position of the pressing plate 328 can be adjusted left and right, and since the other end of the connecting plate is provided with the long circular hole, the connecting plate can move left and right relative to the locking piece 329, the pressing plate 328 is pressed downwards after the position of the pressing plate is adjusted to enable the pressing plate to be pressed on the upper fork 504, meanwhile, the upper end of the locking piece 329 protrudes out of the connecting plate, the upper end of the locking piece is pressed against the connecting plate 327 after the locking piece 329 is rotated by 90 degrees, the pressing plate 328 is locked, the spring is compressed at the moment, and after the locking piece 329 is loosened, the pressing plate 328 moves upwards to loosen the upper fork 504 under the.

As shown in fig. 6 and 7, the third welding mechanism 400 further includes a second frame 401, the lower fork fixing profile block 402, the upper fork fixing pressing block 403, the five-way pipe fixing mechanism 410, the third claw fixing mechanism 420 and the middle pipe fixing mechanism 430 are arranged on the second frame 401, the five-way pipe fixing mechanism 410 comprises a third supporting block 411 and first driving mechanisms positioned at two sides of the third supporting block 411, the first driving mechanism is used for clamping the five-way pipe 501, the third hook claw fixing mechanism 420 comprises a third hook claw positioning inner wide die 422 and second driving mechanisms positioned at two sides of the third hook claw positioning inner wide die, the third hook claw positioning inner wide die 422 is used for placing the hook claws 503 and clamping and fixing the hook claws by a second driving mechanism, the middle tube fixing mechanism 430 includes a third sliding plate 431 and a third driving mechanism fixed on the third sliding plate, and the third driving mechanism is used for fixing the middle tube 502. The third welding mechanism 400 is used for fixing a five-way pipe 501, a middle pipe 502, a hook claw 503, an upper fork 504 and a lower fork 505 of the frame 500, and enabling parts to be welded of the five-way pipe 501 and the lower fork 505 to be mutually attached, parts to be welded of the upper fork 504 and the hook claw 503 to be mutually attached, and parts to be welded of the middle pipe 502 and the upper fork 504 to be mutually attached, and the robot 101 is used for accurately welding the three parts. In operation, a front triangle of the frame is placed on the second frame 401, a five-way tube 501 of the frame is fixed through a five-way tube fixing mechanism 410, a middle tube 502 of the frame is fixed through a middle tube fixing mechanism 430, the front triangle of the frame is fixed on the frame, the lower fork fixing contour block 402 is horizontally arranged on the second frame 401, the upper fork fixing pressing block 403 is obliquely fixed on the second frame 401, when the lower fork 505 is placed on the lower fork fixing contour block, one end of the lower fork fixing contour block is attached to the five-way tube 501 (here, a position to be welded), the other end of the lower fork fixing contour block is connected with the hook 503, the hook 503 is fixed through a third hook fixing mechanism 420, when the upper fork is placed on the upper fork fixing pressing block 403, the upper fork 504 is obliquely arranged relative to the second frame 401, the upper end of the upper fork 504 is attached to the middle tube 502 (here, a position to be welded), and the lower end of the upper fork 504 is attached, the robot 101 can weld the three positions.

The third supporting block 411 is fixedly arranged on the second frame 401, the first driving mechanism is a first driving cylinder 412, the first driving cylinder 412 is horizontally fixed on the third supporting block 411, and a piston rod of the first driving cylinder 412 is fixedly connected with a first pressing block 413; when the front triangle of the frame is arranged on the third supporting block 411, the first driving cylinders 412 on the two sides of the frame are started simultaneously, so that the first pressing block 413 clamps the five-way pipe 501;

the second driving mechanism is a second driving cylinder 423, the third hook claw positioning inner wide die 422 is fixed on the second frame 401 through a fourth supporting block 421, the second driving cylinder 423 is located on the fourth supporting blocks 421 at two sides of the third hook claw positioning inner wide die 422, and a piston rod of the second driving cylinder 423 is fixedly connected with a second pressing block. Selecting a proper lower fork fixing profile block 402 and fixing the same on a second rack 401, selecting a proper third hook claw to position an inner wide die 422 and fixing the same on a fourth supporting block 421, then placing a lower fork 505 in the lower fork fixing profile block 402, attaching the lower fork 505 to a five-way pipe 501, placing a hook claw 503 on the lower fork claw to position the inner wide die 422, and simultaneously starting second driving cylinders 423 on two sides of the air cylinder to enable a second pressing block to clamp two hook claws.

The second frame 401 is further provided with a first adjusting mechanism 440 and a second adjusting mechanism 450, the first adjusting mechanism 440 is connected to the second frame 401, the second adjusting mechanism 450 is connected to the first adjusting mechanism 440, the third sliding plate 431 is slidably provided on the second adjusting mechanism 450, the second adjusting mechanism 450 can drive the sliding plate 431 to slide, and the first adjusting mechanism 440 can drive the second adjusting mechanism 450 and the third sliding plate 431 to rotate simultaneously. The position of the third driving mechanism on the third sliding plate can be adjusted by the second adjusting mechanism 450 to enable the third driving mechanism to clamp the middle pipe, after the third driving mechanism on the third sliding plate clamps the middle pipe, the middle pipe is not mutually attached to the upper fork, and the first adjusting mechanism 440 is adjusted to enable the middle pipe to incline towards the upper fork until the middle pipe is attached to the upper fork, so that the fixing requirements of the middle pipes with different specifications are met, and the precision requirement of robot welding is met.

The first adjusting mechanism 440 includes a first bracket 441, a first screw 442, a first manual wheel 443, and a first adjusting block 444, the first bracket 441 is fixedly connected to the second frame 401, the first bracket 441 is provided with the first screw 442, the first adjusting block 444 is screwed to the first screw 442, and one end of the first screw 442 is fixedly connected to the first manual wheel 443.

The second adjusting mechanism 450 comprises a second bracket 451, a second screw 452, a second manual wheel 453 and a second adjusting block 454, the second bracket 451 is fixedly connected to the first adjusting block 444, the second bracket 451 is provided with the second screw 452, the second adjusting block 454 is screwed to the second screw 452, one end of the second screw 452 is fixedly connected to the second manual wheel 453, and the lower end of the second bracket 451 is rotatably sleeved on the first driving mechanism;

a sliding groove is formed in the second bracket 451 along the height direction thereof, the third sliding plate 431 is slidably arranged in the sliding groove of the second bracket, the third sliding plate 431 is fixedly connected to the second adjusting block 454, and a middle pipe stopper 434 is further arranged on the third sliding plate 431; an included angle larger than 90 degrees is formed between the first screw 442 and the installed lower fork, when the middle pipe is not attached to the upper fork, the first manual wheel 443 is rotated to drive the first screw 442 to rotate, the first screw 442 enables the first adjusting block 444 to slide obliquely along the first screw 442 by utilizing threads, and because the lower end of the second support is sleeved with the first driving mechanism, the second support can be driven to rotate around the first driving mechanism when the first adjusting block slides, so that the middle pipe fixed on the second support is inclined to be attached to the upper fork, and the middle pipe stopper 434 is convenient for quickly positioning the middle pipe.

The third driving mechanism is a third driving cylinder 432, and a piston rod of the third driving cylinder 432 is fixedly provided with a third pressing block 433. The second screw 452 is arranged in parallel with the middle pipe, and the third driving cylinder 432 is arranged in parallel with the second screw 452, so that the inclination angle of the third driving cylinder 432 is consistent with that of the middle pipe, and the third driving cylinder and the middle pipe are always kept on the same straight line; when the second manual wheel 453 is rotated, the second screw 452 drives the second adjusting block 454, the third sliding plate 431, the middle pipe stopper 434 and the third driving cylinder 432 to slide along the second screw together, so that the third pressing block 343 on the third driving cylinder is pressed on the upper end of the middle pipe 502; when the distance between the middle tube 502 and the third driving cylinder 432 exceeds the stroke of the piston rod of the third driving cylinder, the second adjusting mechanism 450 is used to shorten the distance between the middle tube 502 and the third driving cylinder 432, so that the third driving cylinder 432 can fix the middle tube 502 conveniently.

A welding process of an automatic welding die for an aluminum alloy frame comprises the following steps:

the method comprises the following steps: placing a lower fork 505, a claw 503 and a support rod 506 in the first welding mechanism 200, attaching the parts to be welded of the lower fork 505 and the claw 503 and the parts to be welded of the lower fork 505 and the support rod 506, and welding the parts to be welded by using the robot 101 to form a lower fork frame;

step two: placing the upper fork 504 and the other support rod 506 in the second welding mechanism 300, enabling the parts to be welded of the upper fork 504 and the support rod 506 to be jointed, and welding the parts to be welded by using the robot 101 to form an upper fork frame;

step three: and (3) placing the front tripod, the lower fork frame welded in the first step and the upper fork frame welded in the second step in the third welding mechanism 400, enabling the upper fork 504 and the hook claw 503, the five-way pipe 501 and the lower fork 505, and the upper fork 504 and the middle pipe 502 to be jointed, and welding the joints to be jointed by using the robot 101 to form the whole vehicle frame.

Further, the specific steps of the first step are as follows:

step one: selecting a proper first hook positioning inner wide die 211, fixing the first hook positioning inner wide die 211 on the support plate 204, simultaneously placing a hook 503 to be welded on the first hook positioning inner wide die 211, and fixing the hook 503 by using a first clamping piece 212;

step one b: selecting a proper first pipe fitting profile block 221, installing the first pipe fitting profile block 221 on a first sliding plate 222, placing a lower fork 505 and a support rod 506 in a profile groove of the first pipe fitting profile block 221, adjusting the proper height of a first support block 224 to enable the first support block to support the lower fork 505, pressing the support rod by using a support rod pressing mechanism, and enabling the to-be-welded parts of the lower fork and the support rod to be attached to each other;

step one: and adjusting the second clamping piece 232, sliding the first sliding plate 222 towards the direction of the claw 503 under the action of the second clamping piece 232 until the lower fork 505 is attached to the claw 503, fixing the position of the first sliding plate 222 by using a positioning bolt, and finally calling out a corresponding welding program by using the robot 101 to weld the joint of the lower fork and the claw and the attachment of the lower fork and the support rod to form the lower fork frame.

Further, the specific steps in the second step are as follows:

step two a: selecting a proper second hook positioning inner wide die 311, placing the second hook positioning inner wide die 311 on the second base 301, clamping the second hook positioning inner wide die through a second fastening piece 313, and simultaneously placing the hook on the second hook positioning inner wide die 311 and fixing the hook by using the first fastening piece 312;

step two b: selecting a proper second pipe fitting contour block 321, installing the second pipe fitting contour block 321 on a second sliding plate 322, respectively placing an upper fork 504 and a supporting rod 506 in an upper fork contour groove and a supporting rod contour groove, at the moment, mutually attaching the parts to be welded of the upper fork and the supporting rod, and adjusting the proper height of a second supporting block 324 to enable the second supporting block to support the upper fork 504;

step two c: adjusting the third fastener 332, sliding the second sliding plate 322 towards the direction of the hook 503 until the upper fork 504 is attached to the hook 503 under the action of the third fastener 332, and fixing the position of the second sliding plate 322 by using the positioning bolt;

step two: the pressing piece 326 is pulled out towards the direction of the supporting rod to be pressed on the supporting rod 506, the pressing plate 328 is pressed downwards after the proper position of the pressing plate 328 is adjusted, the pressing plate is pressed on the upper fork 504, meanwhile, the upper end of the locking piece 329 protrudes out of the connecting plate, the upper end of the locking piece is pressed on the connecting plate 327 after the locking piece 329 is rotated by 90 degrees, the pressing plate 328 is locked, and finally, the robot 101 is used for adjusting a corresponding welding procedure to weld the to-be-welded positions of the upper fork 504 and the supporting rod 506 to form the upper fork frame.

Further, the specific steps in the third step are as follows:

step three a: selecting a proper lower fork fixing profile block 402, an upper fork fixing pressing block 403 and a third hook claw positioning inner wide die 422 and fixing the three on the second rack 401;

step three b: placing a lower fork 505 on the lower fork frame in the lower fork fixing profile block 402, placing a claw 503 on the lower fork frame on a third claw positioning inner wide die 422, and simultaneously starting two second driving cylinders 423 to enable the second driving cylinders 423 to fix the claw 503;

step three: placing an upper fork 504 of the upper fork frame in the upper fork fixing pressing block 403, and enabling the lower end of the upper fork 504 to be attached to the claw 503, wherein the contact position of the upper fork 504 and the claw 503 is a position to be welded;

step three: placing the front tripod on a third supporting block 411, and clamping the five-way pipe 501 by using first driving cylinders 412 on two sides of the front tripod, wherein the five-way pipe is in contact with a lower fork, and the position is a second position to be welded;

step three e: at this time, if the distance between the third driving cylinder and the middle tube exceeds the stroke of the piston rod of the third driving cylinder, the second manual wheel 453 is adjusted to enable the third driving cylinder 432 to be close to the middle tube 502, and finally the third driving cylinder is pressed on the upper end of the middle tube;

step three: the first manual wheel 443 is adjusted as required, so that the second support rotates around the bottom bracket, the middle tube 502 on the second support inclines and is attached to the upper fork 504, and the attachment position of the upper fork and the middle tube is a third position to be welded;

step three g: until now, the five-way pipe 501, the middle pipe 502, the hook claw 503, the upper fork 504 and the lower fork 505 are all fixed, and finally, the robot 101 calls out corresponding welding procedures to weld the three parts to be welded, so that the whole vehicle frame is formed.

It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (14)

1. The utility model provides an automatic welding mould of aluminum alloy frame which characterized in that: the welding robot comprises a base (100), wherein a robot (101), a first welding mechanism (200), a second welding mechanism (300) and a third welding mechanism (400) are arranged on the base (100), the first welding mechanism (200) comprises a first hook claw fixing mechanism (210) for fixing a hook claw (503), a lower fork fixing mechanism (220) for fixing a lower fork (505) and a clamping mechanism (230), and the clamping mechanism (230) is used for pushing the lower fork fixing mechanism (220) to enable the lower fork (505) on the lower fork fixing mechanism and the hook claw (503) on the first hook claw fixing mechanism (210) to be mutually attached so as to facilitate the welding of the robot (101);

the second welding mechanism (300) comprises a second claw fixing mechanism (310) for fixing the claw, an upper fork and support rod fixing mechanism (320) for fixing an upper fork (504) and a support rod (506) and a fastening mechanism (330), wherein the fastening mechanism (330) is used for pushing the upper fork and support rod fixing mechanism (320) to enable the upper fork (504) on the upper fork and support rod fixing mechanism (320) to be attached to the claw (503) on the second claw fixing mechanism (310);

the third welding mechanism (400) comprises a lower fork fixing profile block (402) for fixing a lower fork (505), an upper fork fixing pressing block (403) for fixing an upper fork (504), a five-way pipe fixing mechanism (410) for fixing a five-way pipe (501), a third hook claw fixing mechanism (420) for fixing a hook claw (503) and a middle pipe fixing mechanism (430) for fixing a middle pipe (502).

2. The automatic welding mould of aluminum alloy frame according to claim 1, characterized in that: first welding mechanism (200) still includes first frame (201), be equipped with first base (202) on first frame (201), the fixed workstation (203) that is equipped with in upper end of first base (202), one side fixed connection backup pad (204) of workstation (203), first claw fixed establishment (210) of colluding is equipped with on backup pad (204), fork fixed establishment (220) and clamping mechanism (230) are located down on workstation (203).

3. The automatic welding mould of aluminum alloy frame according to claim 2, characterized in that: the first hook claw fixing mechanism (210) comprises a first hook claw positioning inner wide die (211) and first clamping pieces (212) arranged on two sides of the first hook claw positioning inner wide die (211) respectively, the first hook claw positioning inner wide die (211) is used for placing two hook claws (503), the first clamping pieces (212) are used for clamping and fixing the hook claws (503), the lower fork fixing mechanism (220) comprises a first pipe fitting contour block (221) used for placing a lower fork (505), and the first clamping pieces (212) are quick clamps;

fixed mounting backing plate (213) on backup pad (204) between wide mould (211) in first clamping piece (212) and the first collude claw location, a tight post (214) of clamp is installed horizontally in backing plate (213) and this presss from both sides tight post (214) and can slide in the backing plate is horizontal, quick clamp is connected in this presss from both sides tight post and can push this tight post (214) of clamp and press from both sides collude claw (503) and press from both sides tightly.

4. The automatic welding mould of aluminum alloy frame according to claim 3, characterized in that: the workbench (203) is provided with a first sliding plate (222) and two parallel first guide rails (205), the first sliding plate (222) is slidably mounted on the first guide rails (205), the first pipe fitting profile block (221) is fixed on the first sliding plate (222), and the first pipe fitting profile block (221) is provided with a lower fork profile groove for placing a lower fork (505),

two sides of the first sliding plate (222) are respectively and fixedly provided with a first strip-shaped plate (223), a first supporting block (224) for supporting the lower fork (505) is arranged on the first strip-shaped plate (223), the first supporting block (224) can adjust the upper and lower positions relative to the first strip-shaped plate (223),

the first strip-shaped plate (223) is provided with a slot, the lower end of the first supporting block (224) is inserted into the slot and fixed through a bolt, the first supporting block (224) is provided with a U-shaped slot matched with the lower fork (505), the workbench (203) is provided with a plurality of jacks, the first sliding plate (222) is provided with a long hole corresponding to the jack, and the first sliding plate (222) is fixed by inserting a positioning bolt into the long hole and the jack respectively;

lower fork fixed establishment (220) still includes branch hold-down mechanism, still be equipped with the branch profile groove that is used for placing branch (506) on first pipe fitting profile block (221), branch hold-down mechanism includes pillar (225) and compresses tightly strip (226), be equipped with slotted hole and mounting hole on pillar (225), this pillar is locked into this slotted hole through the bolt and is fixed in on first slide (222), compress tightly strip (226) and insert horizontally in the mounting hole and this compress tightly the strip and can be in mounting hole horizontal migration, when fixed, compress tightly strip (226) pressfitting in branch (506) upper surface.

5. The automatic welding mould of aluminum alloy frame according to claim 3, characterized in that: the clamping mechanism (230) is arranged on a workbench (203) on the other side of the lower fork fixing mechanism (220), the clamping mechanism (230) comprises a clamping plate (231) and a second clamping piece (232), the clamping plate (231) is located between the lower fork fixing mechanism (220) and the second clamping piece (232), the second clamping piece (232) is a quick clamp, and the second clamping piece (232) can push the clamping plate to be attached to the lower fork fixing mechanism so as to push a lower fork (505) on the lower fork fixing mechanism (220) to be attached to a hook claw (503) on the first hook claw fixing mechanism;

the fixed mounting panel (233) that is equipped with on workstation (203), fixed quick clamp and first cushion (234) of being equipped with on this mounting panel, be equipped with the spout that the level was arranged on the first cushion, installation slide bar (235) in the spout, one end fixed connection clamp plate (231) of this slide bar (235).

6. The automatic welding mould of aluminum alloy frame according to claim 1, characterized in that: the second welding mechanism (300) comprises a second base (301), the second claw-hooking fixing mechanism (310), the upper fork and support rod fixing mechanism (320) and the fastening mechanism (330) are arranged on the second base, the second claw-hooking fixing mechanism (310) comprises a second claw-hooking positioning inner wide die (311) and first fasteners (312) respectively arranged at two sides of the second claw-hooking positioning inner wide die (311), the second claw-hooking positioning inner wide die (311) is used for placing two claw hooks (503), the first fasteners (312) are used for clamping and fixing the claw hooks (503), the upper fork and support rod fixing mechanism (320) comprises a second pipe-shaped block (321), an upper fork stabilizing mechanism and a support rod stabilizing mechanism, an upper fork shaped groove used for placing the upper fork (504) and a support rod-shaped groove used for placing the shaped support rod (506) are arranged on the second pipe-shaped block (321), the fastening mechanism (330) is used for pushing the second pipe fitting profile block (321) to enable the upper fork (504) and the hook claw (503) to be attached to each other, the upper fork stabilizing mechanism is used for pressing the upper fork (504) in the second pipe fitting profile block, and the strut stabilizing mechanism is used for pressing the strut (506) in the second pipe fitting profile block;

the second hook claw fixing mechanism (310) further comprises a second fastening piece (313), the second hook claw positioning inner wide die (311) is fixed on the second base (301) through the second fastening piece (313), the first fastening piece (312) is an adjusting nut, a screw rod is arranged in the second hook claw positioning inner wide die (311), and two ends of the screw rod are respectively sleeved with the adjusting nut.

7. The automatic welding mould of aluminum alloy frame of claim 6, characterized in that: a second sliding plate (322) and two parallel second guide rails (302) are arranged on the second base (301), the second sliding plate (322) is slidably mounted on the second guide rails (302), and the second pipe fitting contour block (321) is fixed on the second sliding plate (322);

the two sides of the second sliding plate (322) are respectively and fixedly provided with a second strip-shaped plate (323), the second strip-shaped plate (323) is provided with a second supporting block (324) used for supporting the upper fork (504), the second supporting block (324) can be adjusted in the vertical position relative to the second strip-shaped plate (323), the second strip-shaped plate (323) is provided with a slot, the lower end of the second supporting block (324) is inserted into the slot and fixed through a bolt, the second supporting block (324) is provided with a U-shaped slot matched with the upper fork (504), the second base (301) is provided with a plurality of jacks, the second sliding plate (322) is provided with first long round holes corresponding to the jacks, and the second sliding plate (322) is fixed by respectively inserting positioning bolts into the first long round holes and the jacks.

8. The automatic welding mould of aluminum alloy frame of claim 7, characterized in that: the supporting rod stabilizing mechanism comprises a second cushion block (325) and a pressing piece (326), a second long round hole and a mounting hole are formed in the second cushion block (325), the second cushion block is locked into the second long round hole through a bolt and fixed on a second sliding plate (322), the pressing piece (326) is horizontally inserted into the mounting hole, the pressing piece can horizontally move in the mounting hole, and when the supporting rod stabilizing mechanism is fixed, the pressing piece (326) is pressed on the upper surface of the supporting rod (506).

9. The automatic welding mould of aluminum alloy frame of claim 6, characterized in that: the fastening mechanism (330) comprises a fastening plate (331) and a third fastener (332), the fastening plate (331) is located between the upper fork and strut fixing mechanism (320) and the third fastener (332), the third fastener (332) is a quick clamp, and the quick clamp can push the fastening plate (331) to be attached to the upper fork and strut fixing mechanism (320) so that the upper fork (504) is attached to the hook claw (503);

the upper fork fixing mechanism comprises a connecting plate (327), a pressing plate (328) and a locking piece (329), the locking piece (329) is arranged in the fastening plate (331), one end of the connecting plate (327) is fixedly connected with the pressing plate (328), the upper end of the locking piece (329) is inserted into a third long circular hole at the other end of the connecting plate, and the lower end of the locking piece is connected with a spring.

10. The automatic welding mould of aluminum alloy frame according to claim 1, characterized in that: the third welding mechanism (400) further comprises a second rack (401), the lower fork fixing contour block (402), the upper fork fixing pressing block (403), a five-way pipe fixing mechanism (410), a third hook claw fixing mechanism (420) and a middle pipe fixing mechanism (430) are arranged on the second rack (401), the five-way pipe fixing mechanism (410) comprises a third supporting block (411) and first driving mechanisms positioned on two sides of the third supporting block (411), the first driving mechanisms are used for clamping the five-way pipe (501), the third hook claw fixing mechanism (420) comprises a third hook claw positioning inner wide die (422) and second driving mechanisms positioned on two sides of the third hook claw positioning inner wide die, the third hook claw positioning inner wide die (422) is used for placing a hook claw (503) and clamping and fixing the hook claw through the second driving mechanisms, the middle pipe fixing mechanism (430) comprises a third sliding plate (431) and a third driving mechanism fixed on the third sliding plate, the third driving mechanism is used for fixing the middle pipe (502).

11. The automatic welding mould of aluminum alloy frame of claim 10, characterized in that: the third supporting block (411) is fixedly arranged on the second rack (401), the first driving mechanism is a first driving cylinder (412), the first driving cylinder (412) is horizontally fixed on the third supporting block (411), and a piston rod of the first driving cylinder (412) is fixedly connected with a first pressing block (413);

the second driving mechanism is a second driving cylinder (423), the third hook claw positioning inner wide die (422) is fixed on the second rack (401) through a fourth supporting block (421), the second driving cylinder (423) is located on the fourth supporting blocks (421) on two sides of the third hook claw positioning inner wide die (422), and a piston rod of the second driving cylinder (423) is fixedly connected with a second pressing block.

12. The automatic welding mould of aluminum alloy frame of claim 10, characterized in that: the second rack (401) is further provided with a first adjusting mechanism (440) and a second adjusting mechanism (450), the first adjusting mechanism (440) is connected to the second rack (401), the second adjusting mechanism (450) is connected to the first adjusting mechanism (440), the third sliding plate (431) is slidably arranged on the second adjusting mechanism (450), the second adjusting mechanism (450) can drive the sliding plate (431) to slide, and the first adjusting mechanism (440) can drive the second adjusting mechanism (450) and the third sliding plate (431) to rotate simultaneously.

13. The automatic welding mould of aluminum alloy frame according to claim 12, characterized in that: the first adjusting mechanism (440) comprises a first support (441), a first screw rod (442), a first manual wheel (443) and a first adjusting block (444), the first support (441) is fixedly connected to the second rack (401), the first screw rod (442) is arranged on the first support (441), the first adjusting block (444) is screwed on the first screw rod (442), and one end of the first screw rod (442) is fixedly connected with the first manual wheel (443).

14. The automatic welding mould of aluminum alloy frame according to claim 13, characterized in that: the second adjusting mechanism (450) comprises a second support (451), a second screw rod (452), a second manual wheel (453) and a second adjusting block (454), the second support (451) is fixedly connected to the first adjusting block (444), the second support (451) is provided with the second screw rod (452), the second adjusting block (454) is screwed on the second screw rod (452), one end of the second screw rod (452) is fixedly connected with the second manual wheel (453), and the lower end of the second support (451) is rotatably sleeved on the first driving mechanism;

a sliding groove is formed in the second support (451) along the height direction of the second support, the third sliding plate (431) is slidably arranged in the sliding groove of the second support, the third sliding plate (431) is fixedly connected to the second adjusting block (454), and a middle pipe stop block (434) is further arranged on the third sliding plate (431);

the third driving mechanism is a third driving air cylinder (432), and a piston rod of the third driving air cylinder (432) is fixedly provided with a third pressing block (433).

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