CN111805111A - Welding method and device for connecting rod of electric vehicle - Google Patents
Welding method and device for connecting rod of electric vehicle Download PDFInfo
- Publication number
- CN111805111A CN111805111A CN202010657425.5A CN202010657425A CN111805111A CN 111805111 A CN111805111 A CN 111805111A CN 202010657425 A CN202010657425 A CN 202010657425A CN 111805111 A CN111805111 A CN 111805111A
- Authority
- CN
- China
- Prior art keywords
- tail
- positioning
- head
- clamping
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the technical field of electric vehicle accessory welding. A welding device for an electric vehicle connecting rod is characterized in that a tail positioning module is installed at the rear end of a bottom plate, and a tail clamping module is located at the front end of the tail positioning module; the middle positioning module is positioned in the middle of the bottom plate, the head positioning module is positioned at the head end of the bottom plate, the head clamping module is installed on the head positioning module, and the welding seat is positioned at the front end of the head positioning module; the horizontal afterbody axle sleeve of afterbody positioning module location loops through, afterbody clamping module compresses tightly the side foot, middle part positioning module assistance-localization real-time connecting rod main part, and head positioning module transversely compresses tightly the work piece head, and head clamping module presses the work piece on head positioning module from the top of work piece, and the welding seat carries on spacingly to the top clamp plate, divide into a plurality of regions to the work piece, fixes a position and compresses tightly the assurance welded quality to it respectively.
Description
Technical Field
The invention relates to the technical field of electric vehicle accessory welding, in particular to a welding device and a welding method for an electric vehicle connecting rod.
Background
The structure of the connecting rod of the electric vehicle mainly comprises a connecting rod main body, a tail shaft sleeve, side legs and a top pressing plate. When the electric motor car connecting rod welds, need weld the top clamp plate to the connecting rod main part.
A welding device of the existing electric vehicle connecting rod, such as the connecting rod welding fixture disclosed in the Chinese utility model patent with publication No. CN204277337U publication No. 2015.04.22, comprises an upper positioning plate, a lower positioning plate, an upper ball pin sleeve inner hole positioning mechanism, a lower ball pin sleeve inner hole positioning mechanism, a connecting rod positioning mechanism and a connecting rod spinning mechanism, wherein the upper positioning plate and the lower positioning plate are connected through a guide pillar, the upper ball pin sleeve inner hole positioning mechanism is installed and fixed on the bottom surface of the upper positioning plate, the lower ball pin sleeve inner hole positioning mechanism is correspondingly arranged on the top surface of the lower positioning plate and mutually matched through a vertical guiding component to realize vertical up-and-down sliding, the guide pillar is slidably matched with two connecting rod positioning mechanisms, each connecting rod positioning mechanism is fixedly provided with the connecting rod spinning mechanism, the two connecting rod positioning mechanisms are connected through a stand column, a connecting rod positioning shaft is installed on the stand column, and magnetic steel, and the upper positioning plate is fixedly provided with a limiting block for limiting the connecting rod positioning mechanism in the vertical direction.
The welding of current electric motor car connecting rod has following problem: anchor clamps only fix a position the both ends of connecting rod and compress tightly, but electric motor car connecting rod length is great, only fixes a position the tip, is difficult to guarantee the precision of location, does not set up reasonable installation location order when and the connecting rod installation, uses for a long time and can appear the unable accurate positioning of connecting rod, influences welding quality.
Disclosure of Invention
The invention aims to solve the problems that in the existing welding of an electric vehicle connecting rod, only two ends of the connecting rod are positioned and compressed, but the length of the electric vehicle connecting rod is large, only the end part is positioned, the positioning precision is difficult to guarantee, and a reasonable mounting and positioning sequence is not set during the mounting of the connecting rod, so that the connecting rod cannot be accurately positioned after long-term use, and the welding quality is influenced.
For the purpose of the invention, the following technical scheme is adopted: a welding device for an electric vehicle connecting rod comprises a bottom plate, and a tail positioning module, a tail clamping module, a middle positioning module, a head clamping module and a welding seat which are arranged on the bottom plate; the tail positioning module is arranged at the rear end of the bottom plate, and the tail clamping module is positioned at the front end of the tail positioning module; the middle positioning module is positioned in the middle of the bottom plate, the head positioning module is positioned at the head end of the bottom plate, the height of the head positioning module is greater than that of the tail positioning module, the tail clamping module and the middle positioning module, the head clamping module is installed on the head positioning module, and the welding seat is positioned at the front end of the head positioning module; the tail positioning module comprises a tail positioning seat, a first tail positioning block, a second tail positioning block, a tail movable positioning head, a tail positioning cylinder and a tail positioning cylinder mounting seat; the tail positioning seat is fixedly arranged at the tail part of the bottom plate, the tail positioning seat is L-shaped, a first tail positioning block is fixedly arranged on the inner side surface of the L-shape of the tail positioning seat, a semicircular first tail positioning groove is formed in the side surface of the first tail positioning block, a second tail positioning block is fixedly arranged on the side surface of the tail positioning seat, a semicircular second tail positioning groove is formed in the second tail positioning block, and the second tail positioning groove and the first tail positioning groove are consistent in height; a tail movable positioning head is arranged on the side of the second tail positioning groove, the positioning end of the tail movable positioning head is conical, the tail movable positioning head is connected to a tail positioning cylinder, and the tail positioning cylinder is fixed on a tail positioning cylinder mounting seat; the tail clamping module comprises a tail clamping seat, a tail clamping cylinder, a tail clamping adapter plate, a first tail clamping positioning plate, a second tail clamping positioning plate, a tail clamping plate and a tail clamping jig; the tail clamping cylinder is fixedly arranged on the tail clamping seat, the output end of the tail clamping cylinder is provided with a tail clamping adapter plate, a first tail clamping positioning plate is fixedly connected above the middle part of the tail clamping adapter plate, the first tail clamping positioning plate is L-shaped, a second tail clamping positioning plate is arranged on the side of the first tail clamping positioning plate, the second tail clamping positioning plate is L-shaped, and the first tail clamping positioning plate and the second tail clamping positioning plate are matched with each other to limit in the horizontal direction; a tail clamping plate is connected below the end part of the tail clamping adapter plate, and a tail clamping jig is arranged below the tail clamping plate; the head positioning module comprises a head positioning frame, a head limit switch, a head positioning cylinder, a head positioning column and a head positioning stop block; the upper part of the head positioning frame inclines to one side, a head limit switch is vertically and fixedly arranged on the upper part of the head positioning frame, and the head limit switch is used for preliminarily positioning the head of the workpiece from the lower part; the upper part of the head positioning frame is transversely and fixedly provided with a head positioning cylinder, the output end of the head positioning cylinder is connected with a head positioning column, and the head positioning column is transversely pressed on a workpiece; the height of the head positioning stop block corresponds to that of the head positioning column, and the head positioning stop block is arranged on the head positioning frame; the head clamping module comprises a head clamping frame, a head clamping cylinder, a head clamping pressure rod, a hinged plate and a head pressing block; the head clamping frame is positioned on one side of the head positioning frame, the head clamping cylinder is arranged above the head clamping frame, the output end of the head clamping cylinder is hinged to the end of the head clamping pressure rod, the other end of the head clamping pressure rod is provided with a head pressing block, and the head pressing block is pressed above the workpiece; the middle part of the head clamping pressure rod is hinged at the upper end of the hinged plate, and the lower end of the hinged plate is fixed on the head clamping frame.
Preferably, the rear end of the tail clamping plate is provided with a tail clamping guide seat, a first tail guide rod and a second tail guide rod are vertically mounted on the tail clamping guide seat, the tail clamping plate is arranged between the first tail guide rod and the second tail guide rod, and the length of the first tail guide rod is smaller than that of the second tail guide rod.
Preferably, the middle positioning module comprises a middle positioning cylinder, a middle positioning table, a middle positioning supporting plate, a middle adapter plate and a tail supporting plate; the middle positioning cylinder is vertically arranged on the bottom plate, the output end of the middle positioning cylinder is connected with the middle positioning table, the middle positioning supporting plate is fixedly arranged at the front end of the middle positioning table, a first supporting strip and a second supporting strip are arranged at the upper end of the middle positioning supporting plate, and the first supporting strip and the second supporting strip form a U-shaped supporting groove; the rear end of the middle positioning table is connected with a middle adapter plate, the middle adapter plate is connected with a tail supporting plate, the tail supporting plate is located between the first tail positioning block and the second tail positioning block, and the tail supporting plate is supported at the lower end of the tail of the workpiece.
Preferably, the upper end face of the welding seat is provided with a welding jig assembly, and the welding jig assembly comprises a welding bottom plate, an inner jig, an outer jig and a peripheral baffle; an inner jig is installed in the center of the welding bottom plate, an outer jig is installed outside the inner jig, and peripheral baffles are installed around the outer jig.
Preferably, the inner jig is rhombic, the middle part of the outer jig is provided with a rhombic through hole, the upper end surface of the outer jig is an arc surface, the middle part is low, the two ends are high, and the height of the outer jig is lower than that of the inner jig; and each peripheral baffle is provided with a baffle strip.
Preferably, there are at least one barrier rib on each peripheral barrier.
A welding method of an electric vehicle connecting rod uses the welding device of the electric vehicle connecting rod; sequentially comprises the following steps:
the tail positioning module transversely positions the tail of the workpiece: the tail of the workpiece is placed on the first tail positioning groove and the second tail positioning groove, then the tail positioning cylinder drives the tail movable positioning head to move, the tail movable positioning head transversely penetrates into the workpiece, and then the workpiece rotates around the tail movable positioning head until the side foot of the workpiece falls onto the tail clamping jig;
(II) the tail clamping module compresses the side foot of the workpiece from top to bottom: the lower part of the workpiece enters between the first tail clamping and positioning plate and the second tail clamping and positioning plate, and the tail clamping cylinder drives the tail clamping plate to move downwards to press the side pins on the tail clamping jig;
(III) the middle part positioning module assists in positioning the middle part of the workpiece: the middle positioning supporting plate is supported below the middle part of the workpiece;
(IV) the head positioning module transversely positions the head of the workpiece: the lower part of the head of the workpiece falls on the head limit switch, and the head positioning cylinder drives the head positioning column to move transversely so as to transversely press the head of the workpiece;
(V) the head clamping module compresses the head of the workpiece: the head clamping cylinder drives the head pressing block to move downwards through the head clamping pressing rod so that the head pressing block is pressed on the upper end of the head of the workpiece;
(VI) positioning the top of the workpiece by the welding jig component: the top of the workpiece is placed on the inner jig and the outer jig, and the top of the workpiece is positioned through the inner jig and the outer jig.
In conclusion, the transverse tail shaft sleeve is positioned sequentially through the tail positioning module, the tail clamping module compresses the side legs, the middle positioning module assists in positioning the connecting rod main body, the head positioning module compresses the head of the workpiece transversely, the head clamping module presses the workpiece on the head positioning module from the upper side of the workpiece, the welding seat limits the top pressing plate, the workpiece is divided into a plurality of areas and is positioned and compressed respectively, the connecting rod can be positioned completely according to a certain sequence, and the welding quality is ensured.
Drawings
Fig. 1 is a schematic structural view of a welding device for a connecting rod of an electric vehicle according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a connecting rod of an electric vehicle.
Fig. 3 is an exploded view of the tail positioning module.
Fig. 4 is an exploded structural schematic view of the tail clamp module.
Fig. 5 is an exploded structural schematic view of a middle positioning module.
Fig. 6 is a schematic structural view of the head positioning module and the head clamping module.
Fig. 7 is a schematic structural diagram of a welding jig assembly.
Fig. 8 is a flowchart of a welding method of an electric vehicle connecting rod according to the present invention.
Detailed Description
As shown in fig. 1, a welding device for a connecting rod of an electric vehicle comprises a bottom plate, and a tail positioning module 1, a tail clamping module 2, a middle positioning module 3, a head positioning module 4, a head clamping module 5 and a welding seat 6 which are installed on the bottom plate. The tail positioning module 1 is installed at the rear end of the bottom plate, and the tail clamping module 2 is located at the front end of the tail positioning module 1. Middle part orientation module 3 is located the bottom plate middle part, and head orientation module 4 is located the head end of bottom plate, and head orientation module 4 highly is greater than afterbody orientation module 1, afterbody clamp module 2 and middle part orientation module 3, and head clamp module 5 is installed on head orientation module 4, and weld holder 6 is located the front end of head orientation module 4. The tail positioning module 1 is used for transversely inserting the tail of the workpiece to position; the tail clamping module 2 is used for pressing the side legs at the lower part of the workpiece; the middle positioning module 3 is used for assisting in positioning the middle of the workpiece from the lower part of the workpiece; the head positioning module 4 positions the head of the workpiece from the lower part of the workpiece, the head clamping module 5 presses the workpiece on the head positioning module 4 from the upper part of the workpiece, and the welding seat 6 is used for positioning the top end of the workpiece.
As shown in fig. 2, the connecting rod of the electric vehicle comprises a connecting rod main body a, a tail shaft sleeve B, a side leg C and a top pressing plate D. During welding, the top pressing plate D is welded to the connecting rod main body A.
As shown in fig. 3, the tail positioning module 1 includes a tail positioning seat 11, a first tail positioning block 12, a second tail positioning block 13, a tail movable positioning head 14, a tail positioning cylinder 15, and a tail positioning cylinder mounting seat 16. The tail positioning seat 11 is fixedly installed at the tail of the bottom plate, the tail positioning seat 11 is in an L shape, a first tail positioning block 12 is fixedly installed on the inner side face of the L shape of the tail positioning seat 11, a semicircular first tail positioning groove 121 is formed in the side face of the first tail positioning block 12, a second tail positioning block 13 is fixedly installed on the side face of the tail positioning seat 11, a semicircular second tail positioning groove 131 is formed in the second tail positioning block 13, and the height of the second tail positioning groove 131 is consistent with that of the first tail positioning groove 121. A tail movable positioning head 14 is arranged on the side of the second tail positioning groove 131, the positioning end of the tail movable positioning head 14 is conical, the tail movable positioning head 14 is connected to a tail positioning cylinder 15, and the tail positioning cylinder 15 is fixed on a tail positioning cylinder mounting seat 16.
When the tail positioning module 1 acts, two ends of the tail shaft sleeve B are placed on the second tail positioning groove 131 and the first tail positioning groove 121, then the tail positioning cylinder 15 drives the tail movable positioning head 14 to move leftwards, and the tail movable positioning head 14 penetrates through the inner side of the tail shaft sleeve B to press the tail shaft sleeve B on the first tail positioning block 12.
As shown in fig. 4, the tail clamping module 2 includes a tail clamping base 21, a tail clamping cylinder 22, a tail clamping adapter plate 23, a first tail clamping positioning plate 24, a second tail clamping positioning plate 25, a tail clamping plate 26 and a tail clamping fixture 27. Afterbody die clamping cylinder 22 fixed mounting is on afterbody presss from both sides tight seat 21, afterbody die clamping cylinder 22's output installation afterbody presss from both sides tight keysets 23, the first afterbody of middle part top fixed connection of afterbody clamp keysets 23 presss from both sides tight locating plate 24, first afterbody presss from both sides tight locating plate 24 and is the L shape, first afterbody presss from both sides tight locating plate 24 side and is equipped with second afterbody and presss from both sides tight locating plate 25, second afterbody presss from both sides tight locating plate 25 and is the L shape, first afterbody presss from both sides tight locating plate 24 and second afterbody presss from both sides tight. The tail clamping adapter plate 23 is connected with a tail clamping plate 26 below the end portion, and a tail clamping jig 27 is arranged below the tail clamping plate 26. The rear end of the tail clamping plate 26 is provided with a tail clamping guide seat 261, a first tail guide rod 262 and a second tail guide rod 263 are vertically installed on the tail clamping guide seat 261, the tail clamping plate 26 is arranged between the first tail guide rod 262 and the second tail guide rod 263, and the length of the first tail guide rod 262 is smaller than that of the second tail guide rod 263.
When the tail clamping module 2 acts, the side leg C falls on the tail clamping jig 27, the connecting rod main body a is located between the first tail clamping positioning plate 24 and the second tail clamping positioning plate 25, then the tail clamping cylinder 22 drives the tail clamping adapter plate 23 to move downwards, the tail clamping adapter plate 23 drives the tail clamping plate 26 to move downwards, and the tail clamping plate 26 compresses the side leg C on the tail clamping jig 27.
As shown in fig. 5, the middle positioning module 3 includes a middle positioning cylinder 31, a middle positioning table 32, a middle positioning pallet 33, a middle adapter plate 34, and a tail pallet 35. The middle positioning cylinder 31 is vertically arranged on the bottom plate, the output end of the middle positioning cylinder 31 is connected with the middle positioning table 32, the middle positioning supporting plate 33 is fixedly arranged at the front end of the middle positioning table 32, a first supporting strip 331 and a second supporting strip 332 are arranged at the upper end of the middle positioning supporting plate 33, and the first supporting strip 331 and the second supporting strip 332 form a U-shaped bracket. The rear end of the middle positioning table 32 is connected with a middle adapter plate 34, the middle adapter plate 34 is connected with a tail supporting plate 35, the tail supporting plate 35 is located between the first tail positioning block 12 and the second tail positioning block 13, and the tail supporting plate 35 is supported at the lower end of the tail of the workpiece.
As shown in fig. 6, the head positioning module 4 includes a head positioning frame 41, a head limit switch 42, a head positioning cylinder 43, a head positioning column 44, and a head positioning stopper 45. The upper portion of the head positioning frame 41 inclines to one side, the head limit switch 42 is vertically and fixedly installed on the upper portion of the head positioning frame 41, and the head limit switch 42 is used for preliminarily positioning the head of the workpiece from below. The upper part of the head positioning frame 41 is transversely and fixedly provided with a head positioning cylinder 43, the output end of the head positioning cylinder 43 is connected with a head positioning column 44, and the head positioning column 44 is transversely pressed on a workpiece. The head positioning stopper 45 corresponds in height to the head positioning column 44, and the head positioning stopper 45 is mounted on the head positioning frame 41. The head clamping module 5 includes a head clamping frame 51, a head clamping cylinder 52, a head clamping pressing rod 53, a hinge plate 54, and a head pressing block 55. The head clamping frame 51 is positioned at one side of the head positioning frame 41, the head clamping cylinder 52 is arranged above the head clamping frame 51, the output end of the head clamping cylinder 52 is hinged to the end part of the head clamping pressing rod 53, the other end part of the head clamping pressing rod 53 is provided with the head pressing block 55, and the head pressing block 55 is pressed above the workpiece. The head clamping strut 53 is hinged at its middle to the upper end of a hinge plate 54, and the lower end of the hinge plate 54 is fixed to the head clamping frame 51.
When the head positioning module 4 and the head clamping module 5 act, the lower part of the head of the workpiece falls on the head limit switch 42, the head positioning cylinder 43 drives the head positioning column 44 to move transversely, so that the head positioning column 44 is transversely pressed on the head of the workpiece, and the head clamping cylinder 52 drives the head pressing block 55 to move downwards through the head clamping pressing rod 53, so that the head pressing block 55 is pressed on the upper end of the head of the workpiece.
As shown in fig. 7, a welding jig assembly 61 is disposed on the upper end surface of the welding seat 6, and the welding jig assembly 61 includes a welding bottom plate 611, an inner jig 612, an outer jig 613, and a peripheral baffle 614. An inner fixture 612 is installed at the center of the welding bottom plate 611, an outer fixture 613 is installed outside the inner fixture 612, and a peripheral baffle 614 is installed around the outer fixture 613. The inner jig 612 is rhombic, a rhombic through hole is formed in the middle of the outer jig 613, the upper end face of the outer jig 613 is a circular arc face, the middle of the outer jig 613 is low, the two ends of the outer jig 613 are high, and the height of the outer jig 613 is lower than that of the inner jig 612. A barrier strip is provided on each peripheral baffle 614. There are at least two bars per peripheral baffle 614.
The welding method of the electric vehicle connecting rod uses the welding device of the electric vehicle connecting rod, and sequentially comprises the following steps:
the tail positioning module transversely positions the tail of the workpiece: the tail of the workpiece is placed on the first tail positioning groove 121 and the second tail positioning groove 131, then the tail positioning cylinder 15 drives the tail movable positioning head 14 to move, the tail movable positioning head 14 transversely penetrates into the workpiece, and then the workpiece rotates around the tail movable positioning head 14 until the side feet of the workpiece fall onto the tail clamping jig 27;
(II) the tail clamping module compresses the side foot of the workpiece from top to bottom: the lower part of the workpiece enters between the first tail clamping and positioning plate 24 and the second tail clamping and positioning plate 25, and the tail clamping cylinder 22 drives the tail clamping plate 26 to move downwards to press the side pins on the tail clamping jig 27;
(III) the middle part positioning module assists in positioning the middle part of the workpiece: the middle positioning supporting plate 33 is supported below the middle part of the workpiece;
(IV) the head positioning module transversely positions the head of the workpiece: the lower part of the head of the workpiece falls on the head limit switch 42, and the head positioning cylinder 43 drives the head positioning column 44 to move transversely so as to transversely press the head of the workpiece;
(V) the head clamping module compresses the head of the workpiece: the head clamping cylinder 52 drives the head pressing block 55 to move downwards through the head clamping pressing rod 53 so as to press the head pressing block on the upper end of the workpiece;
(VI) positioning the top of the workpiece by the welding jig component: the top of the workpiece is placed on the inner tool 612 and the outer tool 613 and the top of the workpiece is positioned by the inner tool 612 and the outer tool 613.
The welding device of the electric vehicle connecting rod solves the problems that the traditional clamp only positions and compresses two ends of the connecting rod, but the length of the electric vehicle connecting rod is large, only positions the end part, the positioning precision is difficult to ensure, no reasonable installation and positioning sequence is set when the connecting rod is installed, the connecting rod can not be accurately positioned after long-term use, and the welding quality is poor, and has the advantages that the transverse tail shaft sleeve B is positioned sequentially through the tail positioning module 1, the tail clamping module 2 compresses the side foot C, the middle positioning module 3 assists in positioning the connecting rod main body A, the head positioning module 4 transversely compresses the head of a workpiece, the head clamping module 5 presses the workpiece on the head positioning module 4 from the upper part of the workpiece, the welding seat 6 limits the top pressure plate D, divides the workpiece into a plurality of regions and positions and compresses the workpiece respectively, and the connecting rods can be completely positioned according to a certain sequence, so that the welding quality is ensured.
Claims (7)
1. A welding device for an electric vehicle connecting rod is characterized by comprising a bottom plate, and a tail positioning module (1), a tail clamping module (2), a middle positioning module (3), a head positioning module (4), a head clamping module (5) and a welding seat (6) which are arranged on the bottom plate; the tail positioning module (1) is installed at the rear end of the bottom plate, and the tail clamping module (2) is located at the front end of the tail positioning module (1); the middle positioning module (3) is positioned in the middle of the bottom plate, the head positioning module (4) is positioned at the head end of the bottom plate, the height of the head positioning module (4) is greater than that of the tail positioning module (1), the tail clamping module (2) and the middle positioning module (3), the head clamping module (5) is installed on the head positioning module (4), and the welding seat (6) is positioned at the front end of the head positioning module (4); the tail positioning module (1) comprises a tail positioning seat (11), a first tail positioning block (12), a second tail positioning block (13), a tail movable positioning head (14), a tail positioning cylinder (15) and a tail positioning cylinder mounting seat (16); the tail positioning seat (11) is fixedly arranged at the tail of the bottom plate, the tail positioning seat (11) is L-shaped, a first tail positioning block (12) is fixedly arranged on the L-shaped inner side face of the tail positioning seat (11), a semicircular first tail positioning groove (121) is formed in the side face of the first tail positioning block (12), a second tail positioning block (13) is fixedly arranged on the side face of the tail positioning seat (11), a semicircular second tail positioning groove (131) is formed in the second tail positioning block (13), and the second tail positioning groove (131) is as high as the first tail positioning groove (121); a tail movable positioning head (14) is arranged on the side of the second tail positioning groove (131), the positioning end of the tail movable positioning head (14) is conical, the tail movable positioning head (14) is connected to a tail positioning cylinder (15), and the tail positioning cylinder (15) is fixed on a tail positioning cylinder mounting seat (16); the tail clamping module (2) comprises a tail clamping seat (21), a tail clamping cylinder (22), a tail clamping adapter plate (23), a first tail clamping positioning plate (24), a second tail clamping positioning plate (25), a tail clamping plate (26) and a tail clamping jig (27); the tail clamping cylinder (22) is fixedly installed on the tail clamping seat (21), the tail clamping adapter plate (23) is installed at the output end of the tail clamping cylinder (22), a first tail clamping positioning plate (24) is fixedly connected to the upper portion of the middle of the tail clamping adapter plate (23), the first tail clamping positioning plate (24) is L-shaped, a second tail clamping positioning plate (25) is arranged on the side of the first tail clamping positioning plate (24), the second tail clamping positioning plate (25) is L-shaped, and the first tail clamping positioning plate (24) and the second tail clamping positioning plate (25) are matched with each other to limit in the horizontal direction; a tail clamping plate (26) is connected below the end part of the tail clamping adapter plate (23), and a tail clamping jig (27) is arranged below the tail clamping plate (26); the head positioning module (4) comprises a head positioning frame (41), a head limit switch (42), a head positioning cylinder (43), a head positioning column (44) and a head positioning stop block (45); the upper part of the head positioning frame (41) inclines to one side, a head limit switch (42) is vertically and fixedly installed on the upper part of the head positioning frame (41), and the head limit switch (42) is used for preliminarily positioning the head of the workpiece from the lower part; a head positioning cylinder (43) is transversely and fixedly arranged on the upper part of the head positioning frame (41), the output end of the head positioning cylinder (43) is connected with a head positioning column (44), and the head positioning column (44) is transversely pressed on a workpiece; the height of the head positioning stop block (45) corresponds to that of the head positioning column (44), and the head positioning stop block (45) is arranged on the head positioning frame (41); the head clamping module (5) comprises a head clamping frame (51), a head clamping cylinder (52), a head clamping pressure rod (53), a hinge plate (54) and a head pressing block (55); the head clamping frame (51) is positioned on one side of the head positioning frame (41), a head clamping cylinder (52) is arranged above the head clamping frame (51), the output end of the head clamping cylinder (52) is hinged to the end of a head clamping pressing rod (53), the other end of the head clamping pressing rod (53) is provided with a head pressing block (55), and the head pressing block (55) is pressed above a workpiece; the middle part of the head clamping pressure rod (53) is hinged at the upper end of a hinged plate (54), and the lower end of the hinged plate (54) is fixed on the head clamping frame (51).
2. The welding device for the connecting rod of the electric vehicle as claimed in claim 1, wherein the rear end of the rear clamping plate (26) is provided with a rear clamping guide seat (261), a first rear guide rod (262) and a second rear guide rod (263) are vertically installed on the rear clamping guide seat (261), the rear clamping plate (26) is arranged between the first rear guide rod (262) and the second rear guide rod (263), and the length of the first rear guide rod (262) is smaller than that of the second rear guide rod (263).
3. The welding device of the connecting rod of the electric vehicle as claimed in claim 1, wherein the middle positioning module (3) comprises a middle positioning cylinder (31), a middle positioning table (32), a middle positioning support plate (33), a middle adapter plate (34) and a tail support plate (35); the middle positioning cylinder (31) is vertically arranged on the bottom plate, the output end of the middle positioning cylinder (31) is connected with the middle positioning table (32), the middle positioning supporting plate (33) is fixedly arranged at the front end of the middle positioning table (32), the upper end of the middle positioning supporting plate (33) is provided with a first supporting strip (331) and a second supporting strip (332), and the first supporting strip (331) and the second supporting strip (332) form a U-shaped supporting groove; the rear end of the middle positioning table (32) is connected with a middle adapter plate (34), the middle adapter plate (34) is connected with a tail supporting plate (35), the tail supporting plate (35) is located between the first tail positioning block (12) and the second tail positioning block (13), and the tail supporting plate (35) is supported at the lower end of the tail of the workpiece.
4. The welding device of the connecting rod of the electric vehicle as claimed in claim 1, wherein the upper end surface of the welding seat (6) is provided with a welding jig assembly (61), and the welding jig assembly (61) comprises a welding bottom plate (611), an inner jig (612), an outer jig (613) and a peripheral baffle (614); an inner fixture (612) is installed in the center of the welding bottom plate (611), an outer fixture (613) is installed outside the inner fixture (612), and a peripheral baffle (614) is installed around the outer fixture (613).
5. The welding device for the connecting rod of the electric vehicle as claimed in claim 1, wherein the inner jig (612) is diamond-shaped, the middle part of the outer jig (613) is provided with a diamond-shaped through hole, the upper end surface of the outer jig (613) is a circular arc surface, the middle part is lower, the two ends are higher, and the height of the outer jig (613) is lower than that of the inner jig (612); each peripheral baffle (614) is provided with a barrier strip.
6. The welding device of an electric vehicle connecting rod as claimed in claim 1, wherein there are at least two bars per said peripheral barrier (614).
7. A welding method of an electric vehicle connecting rod, characterized by using the welding device of an electric vehicle connecting rod of claim 1; sequentially comprises the following steps:
the tail positioning module transversely positions the tail of the workpiece: the tail of the workpiece is placed on the first tail positioning groove (121) and the second tail positioning groove (131), then the tail positioning cylinder (15) drives the tail movable positioning head (14) to move, the tail movable positioning head (14) transversely penetrates into the workpiece, and then the workpiece rotates around the tail movable positioning head (14) until the side foot of the workpiece falls onto the tail clamping jig (27);
the tail clamping module compresses the side foot of the workpiece from top to bottom: the lower part of the workpiece enters between a first tail clamping positioning plate (24) and a second tail clamping positioning plate (25), and a tail clamping cylinder (22) drives a tail clamping plate (26) to move downwards to press a side pin on a tail clamping jig (27);
the middle part positioning module assists in positioning the middle part of the workpiece: the middle positioning supporting plate (33) is supported below the middle part of the workpiece;
the head positioning module transversely positions the head of the workpiece: the lower part of the head of the workpiece falls on a head limit switch (42), and a head positioning cylinder (43) drives a head positioning column (44) to move transversely so as to transversely press the head of the workpiece;
the head clamping module compresses the head of the workpiece: the head clamping cylinder (52) drives the head pressing block (55) to move downwards through the head clamping pressing rod (53) so as to press the upper end of the head of the workpiece;
the welding jig subassembly location work piece top: the top of the workpiece is placed on the inner fixture (612) and the outer fixture (613), and the top of the workpiece is positioned by the inner fixture (612) and the outer fixture (613).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010657425.5A CN111805111A (en) | 2020-07-09 | 2020-07-09 | Welding method and device for connecting rod of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010657425.5A CN111805111A (en) | 2020-07-09 | 2020-07-09 | Welding method and device for connecting rod of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111805111A true CN111805111A (en) | 2020-10-23 |
Family
ID=72842057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010657425.5A Withdrawn CN111805111A (en) | 2020-07-09 | 2020-07-09 | Welding method and device for connecting rod of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111805111A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206140049U (en) * | 2016-11-04 | 2017-05-03 | 佛山市翰南机电设备有限公司 | Welded fastening tool device |
| CN108127318A (en) * | 2017-12-30 | 2018-06-08 | 安徽大昌科技股份有限公司 | A kind of vehicle right and left side-wall inner-plate forepart unit fixture |
| CN207982640U (en) * | 2017-12-30 | 2018-10-19 | 安徽大昌科技股份有限公司 | A kind of vehicle right and left side-wall inner-plate front unit fixture |
-
2020
- 2020-07-09 CN CN202010657425.5A patent/CN111805111A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206140049U (en) * | 2016-11-04 | 2017-05-03 | 佛山市翰南机电设备有限公司 | Welded fastening tool device |
| CN108127318A (en) * | 2017-12-30 | 2018-06-08 | 安徽大昌科技股份有限公司 | A kind of vehicle right and left side-wall inner-plate forepart unit fixture |
| CN207982640U (en) * | 2017-12-30 | 2018-10-19 | 安徽大昌科技股份有限公司 | A kind of vehicle right and left side-wall inner-plate front unit fixture |
Non-Patent Citations (1)
| Title |
|---|
| 天天摸鱼: "BKT座椅焊接夹具", 《沐风网》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107971676B (en) | A kind of weld clamp method of automotive suspension control arm | |
| CN208467652U (en) | A kind of case weld tooling of automobile exhaust gas purifying installation | |
| CN106670697B (en) | Full-automatic superconductor micro-welding equipment | |
| CN110587204B (en) | T-shaped plate assembling and welding integrated positioning tool | |
| CN203292742U (en) | Welding clamp of auxiliary frame | |
| CN111805111A (en) | Welding method and device for connecting rod of electric vehicle | |
| CN211442477U (en) | Aluminum alloy auxiliary frame | |
| CN112548458A (en) | Welding tool for engineering vehicle water tank support | |
| CN205166442U (en) | Automobile machinery triangle arm assembly preparation anchor clamps | |
| CN213105336U (en) | Welding positioning tool for scissor arm of lifter | |
| CN108890198B (en) | Automobile longitudinal beam welding fixture | |
| CN210060225U (en) | Drive axle welding positioning device | |
| CN208005068U (en) | A kind of energy-absorbing beam welding fixture | |
| CN107900587B (en) | A kind of ball stud installation end weld clamp method of automotive suspension control arm | |
| CN220259988U (en) | Welding positioning tool for frame assembly | |
| CN215509581U (en) | Positioning tool for rear side wall cup holder bracket | |
| CN220407630U (en) | Landing leg welding fixture | |
| CN219094114U (en) | Tool clamp capable of being automatically adjusted | |
| CN221134672U (en) | Welding jig of electric motor car tailstock | |
| CN210388117U (en) | Welding fixture for support assembly of automobile child seat | |
| CN211866960U (en) | Automobile longitudinal beam assembly welding fixture | |
| CN112847212B (en) | Press machine assembly | |
| CN214080021U (en) | Automobile panel welding fixture | |
| CN211305350U (en) | Clamp for welding electric power-assisted reinforcing frame of automobile | |
| CN217965519U (en) | Device for processing inner support pipe welding assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201023 |
|
| WW01 | Invention patent application withdrawn after publication |