CN112756878A

CN112756878A - Butt welding platform for electric vehicle hub production

Info

Publication number: CN112756878A
Application number: CN202011622583.3A
Authority: CN
Inventors: 马俊超
Original assignee: Jiangsu Junchao Electric Vehicle Parts Manufacturing Co ltd
Current assignee: Jiangsu Junchao Electric Vehicle Parts Manufacturing Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-05-07
Anticipated expiration: 2040-12-30
Also published as: CN112756878B

Abstract

The invention discloses a butt welding platform for producing an electric vehicle hub, which comprises a base and a welding device, wherein a welding area is arranged below the welding device, a circumferential alignment mechanism for clamping and aligning the joint of a steel ring to be welded is arranged on the base, the circumferential alignment mechanism comprises a first rotating arm and a second rotating arm which are identical in structure and are symmetrically hinged on a fixed seat right below the welding area in a bilateral mode, the first rotating arm and the second rotating arm are respectively provided with a clamping mechanism for fixing the steel ring, and the clamping mechanism is provided with a protection mechanism and a position adjusting mechanism for shielding the welding area. According to the invention, the circumferential alignment mechanism and the protection mechanism are arranged, so that the two sides of the steel ring seam are clamped and fixed, the tangential pressing force is provided, the welding effect is improved, the protection mechanism plays a role in shielding splashes and sparks, and the protection mechanism is linked by the clamping mechanism, so that the structural simplicity is ensured, and the cost is reduced.

Description

Butt welding platform for electric vehicle hub production

Technical Field

The invention relates to a butt welding platform for electric vehicle hub production, and belongs to the technical field of electric vehicle hub production.

Background

At present, steel rings of steel wheels of electric vehicle hubs are generally processed by bending steel plates into rings, then butt welding the steel plates, and then further processing and forming the steel rings by other forming equipment. The existing butt welding platform only can clamp steel plates on two sides of a joint up and down, pressing force towards the joint cannot be applied to the steel plates, the joint area is possibly too large, welding effect is affected, and meanwhile, high-brightness sparks and splashes generated during welding have certain harm to personal safety of operators.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a butt welding platform for producing an electric vehicle hub, which clamps and fixes two sides of a steel ring seam, provides tangential pressing force, improves the welding effect and is provided with a protective structure to shield splashes and sparks.

In order to achieve the purpose, the butt welding platform for the production of the electric vehicle hub comprises a base and a welding device, wherein a welding area is arranged below the welding device, a circumferential alignment mechanism for clamping and aligning the joint of a steel ring to be welded is arranged on the base, the circumferential alignment mechanism comprises a first rotating arm and a second rotating arm which are identical in structure and are coaxially hinged on a fixed seat right below the welding area in a bilateral symmetry mode, the first rotating arm and the second rotating arm are respectively symmetrically hinged with a first connecting rod and a second connecting rod which are identical in structure, the first connecting rod and the second connecting rod are hinged on a hinged support, and the bottom of the hinged support is connected with a main cylinder fixed on the fixed seat; and the first rotating arm and the second rotating arm are both provided with a clamping mechanism for fixing the steel ring, and the bottom of the clamping mechanism is provided with a position adjusting mechanism for adjusting the position of the clamping mechanism on the first rotating arm or the second rotating arm.

Further, position control mechanism includes the shell, first commentaries on classics arm passes the shell and rather than sliding fit, be equipped with worm wheel and the worm that has one-way transmission fit relation in the shell, one side of worm wheel is equipped with coaxial coupling's gear, be equipped with on the first commentaries on classics arm with gear complex rack.

Furthermore, the clamping mechanism comprises a rectangular frame fixedly connected with the shell and an auxiliary cylinder arranged on the inner wall above the rectangular frame, an output end of the auxiliary cylinder is fixedly connected with an upper clamping block, a lower clamping block is arranged on the inner wall of the rectangular frame opposite to the upper clamping block, and anti-skidding teeth in staggered fit are arranged on the upper clamping block and the lower clamping block.

Further, be equipped with central adjustment mechanism under the circumference alignment mechanism, central adjustment mechanism is including fixing the base on the frame under the fixing base, rotationally install on the base with fixing base screw-thread fit's lead screw, be equipped with on the frame with the lead screw parallel and with fixing base sliding fit's guided way.

Further, the first rotating arm penetrates through the rectangular frame and is in sliding fit with the rectangular frame.

Furthermore, the clamping mechanism is provided with a protection mechanism used for shielding a welding area, the protection mechanism comprises an upper baffle fixed on the rectangular frame and a front baffle hinged with the upper baffle through a hinge, and a third connecting rod is hinged between the front baffle and the upper clamping block.

Furthermore, the end parts of the worm and the screw rod are provided with spoke rotating handles.

Compared with the prior art, the invention has the beneficial effects that:

1. the position of the clamping mechanism on the first rotating arm or the second rotating arm is adjusted by arranging the position adjusting mechanism, so that the distance between the clamping mechanism and the rotating center of the first rotating arm is matched with the radius of the steel ring; because the welding area, the hinged support, the main cylinder and the fixed seat are on the same vertical surface, when the main cylinder jacks up the hinged support, the first connecting rod and the second connecting rod simultaneously pull the first rotating arm and the second rotating arm to rotate towards the welding area by taking the common hinged shaft as a center, so that the two sides of the steel ring joint are clamped and tangential force is applied to the steel ring joint, the steel ring joint is aligned and pressed by radian of the steel ring joint, the welding work is better performed, and the welding quality is indirectly improved.

2. By arranging the rectangular frame, the auxiliary cylinder, the upper clamping block and the lower clamping block, the rectangular frame forms a closed stress system, and the auxiliary cylinder cannot extrude the position adjusting mechanism when pushing the upper clamping block downwards; the steel ring can be gripped better to crisscross complex antiskid tooth, increases the steadiness of frictional force and centre gripping.

3. Through setting up central adjustment mechanism, because the bottom relatively fixed of lead screw is on the base, the fixing base is restricted the moving direction by the guided way again, and when rotating the lead screw, the fixing base will remove along the lead screw to realize the regulation of first rocking arm and second rocking arm rotation center position, guarantee that circumference alignment mechanism can adapt to the steel ring of different diameters size, make the seam crossing of steel ring finally can both align the weld zone.

4. Through setting up protection machanism, when the clamp splice was gone up in the downward promotion of auxiliary cylinder, baffle before the third connecting rod pulling for preceding baffle uses the hinge to rotate as rotation center, and when last briquetting compressed tightly the steel ring, protection machanism can form the structure that shelters from of L type, prevents that the spark of weld zone and splash from flying the operation workman to the place ahead, ensures operation workman's personal safety.

Drawings

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

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic structural view of a clamping mechanism according to the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 3 in accordance with the present invention;

FIG. 5 is a schematic view of a first arm of the present invention;

FIG. 6 is an enlarged view taken at B of FIG. 5 in accordance with the present invention;

FIG. 7 is a side perspective view of the overall construction of the present invention;

FIG. 8 is a perspective view of the present invention in use;

fig. 9 is a schematic view of the use of the guard mechanism of the present invention.

In the figure: 1. the device comprises a base, 2, a welding device, 21, a welding area, 3, a circumferential alignment mechanism, 31, a fixed seat, 32, a second rotating arm, 33, a first rotating arm, 34, a second connecting rod, 35, a first connecting rod, 36, a main cylinder, 37, a hinged support, 4, a clamping mechanism, 41, a position adjusting mechanism, 411, a shell, 412, a worm, 413, a worm wheel, 414, a gear, 415, a rack, 416, a spoke rotating handle, 42, a rectangular frame, 43, a secondary cylinder, 44, an upper clamping block, 45, a lower clamping block, 46, an anti-skidding tooth, 5, a center adjusting mechanism, 51, a base, 52, a guide rail, 53, a screw rod, 6, a protection mechanism, 61, an upper baffle plate, 62, a front baffle plate, 63, a hinge, 64 and a third connecting rod.

Detailed Description

The technical solutions in the implementation of the present invention will be made clear and fully described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 9, a butt welding platform for producing an electric vehicle hub according to an embodiment of the present invention includes a base 1 and a welding device 2, where the welding device 2 may be an existing welding machine such as flash welding, argon arc welding, and the like, and is preferably an automatic welding machine, a welding region 21 is disposed below the welding device 2, the welding region 21 is a region corresponding to a welding head during a specific welding operation, a circumferential alignment mechanism 3 for clamping and aligning a joint of steel rings to be welded is disposed on the base 1, the circumferential alignment mechanism 3 includes a first rotating arm 33 and a second rotating arm 32 that are identical in structure and are coaxially hinged to a fixing seat 31 directly below the welding region 21 in a bilateral symmetry manner, the first rotating arm 33 and the second rotating arm 32 are respectively hinged to a first connecting rod 35 and a second connecting rod 34 that are identical in structure, the first connecting rod 35 and the second connecting rod 34 are hinged to a hinge support 37, the bottom of the hinged support 37 is connected with a master cylinder 36 fixed on the fixed seat 31; the first rotating arm 33 and the second rotating arm 32 are both provided with a clamping mechanism 4 for fixing a steel ring, and the bottom of the clamping mechanism 4 is provided with a position adjusting mechanism 41 for adjusting the position of the clamping mechanism on the first rotating arm 33 or the second rotating arm 32.

The position of the clamping mechanism 4 on the first rotating arm 33 or the second rotating arm 32 can be changed by arranging the position adjusting mechanism 41, so that when the clamping mechanism 4 clamps a steel ring, the center of the steel ring can be overlapped with the hinge shaft of the first rotating arm 33 and the second rotating arm 32, the main cylinder 36 can drive the hinge support 37 to move up and down, and as the welding area 21, the hinge support 37, the main cylinder 36 and the fixed seat 31 are on the same vertical plane, when the main cylinder 36 jacks up the hinge support 37, the first connecting rod 35 and the second connecting rod 34 simultaneously pull the first rotating arm 33 and the second rotating arm 32 to rotate towards the welding area 21 by taking the common hinge shaft as the center, so that the two sides of the steel ring joint are clamped and simultaneously apply tangential force to the two sides of the steel ring joint, the steel ring joint is aligned and pressed by radian thereof, the welding work is better, and the welding.

Further, as shown in fig. 5 and 6, the position adjustment mechanism 41 includes a housing 411, the first rotating arm 33 penetrates through the housing 411 and is in sliding fit with the housing 411, a worm gear 413 and a worm 412 which have a one-way transmission fit relationship are arranged in the housing 411, a gear 414 which is coaxially connected is arranged on one side of the worm gear 413, and a rack 415 which is fit with the gear 414 is arranged on the first rotating arm 33. By providing the gear 414, the rack 415, the worm gear 413 and the worm 412, when the worm 412 is rotated, the worm 412 drives the worm gear 413 to rotate, the gear 414 rotates along with the worm gear 413, and the gear 414 moves along the rack 415, thereby achieving the change of the position of the clamping mechanism 4 on the first rotating arm 33. Because the worm gear 413 and the worm 412 are used in a matching relationship of one-way transmission, the position of the clamping mechanism 4 can be self-locked through the position adjusting mechanism 41, and the position of the clamping mechanism 4 can be changed only when the worm 412 is rotated.

Further, as shown in fig. 2, fig. 3 and fig. 4, the clamping mechanism 4 includes a rectangular frame 42 fixedly connected to the housing 411 and an auxiliary cylinder 43 installed on an upper inner wall of the rectangular frame 42, an output end of the auxiliary cylinder 43 is fixedly connected to an upper clamping block 44, a lower clamping block 45 is disposed on an inner wall of the rectangular frame 42 opposite to the upper clamping block 44, and anti-slip teeth 46 in staggered fit are disposed on the upper clamping block 44 and the lower clamping block 45. The rectangular frame 42 forms a closed stress system, and when the auxiliary cylinder 43 pushes the upper clamping block 44 downwards, the position adjusting mechanism 41 is not affected by extrusion. The cross-fit anti-slip teeth 46 can better grip the steel ring, increasing friction and clamping stability.

Further, be equipped with central adjustment mechanism 5 under the circumference alignment mechanism 3, central adjustment mechanism 5 is including fixing the base 51 on the frame 1 under the fixing base 31, rotationally installs the lead screw 53 with fixing base 31 screw-thread fit on the base 51, be equipped with the guided way 52 parallel with lead screw 53 and with fixing base 31 sliding fit on the frame 1.

Through the arrangement of the center adjusting mechanism 5, the bottom of the screw 53 is relatively fixed on the base 51, the moving direction of the fixed seat 31 is limited by the guide rail 52, and when the screw 53 is rotated, the fixed seat 31 moves along the screw 53, so that the rotation center positions of the first rotating arm 33 and the second rotating arm 32 are adjusted, the circumferential aligning mechanism 3 can be adapted to steel rings with different diameters, and the seam of the steel rings can be aligned to the welding area 21 finally.

Further, the first rotating arm 33 passes through the rectangular frame 42 and is in sliding fit with the rectangular frame 42. The rectangular frame 42 can obtain a certain supporting force of the first rotating arm 33, and the overall structural strength is increased.

As shown in fig. 7, 8 and 9, a shielding mechanism 6 for shielding the welding zone 21 is further provided on the clamping mechanism 4, the shielding mechanism 6 includes an upper baffle 61 fixed on the rectangular frame 42 and a front baffle 62 hinged to the upper baffle 61 through a hinge 63, and a third link 64 is hinged between the front baffle 62 and the upper clamping block 44. When the auxiliary cylinder 43 pushes the upper clamping block 44 downwards, the third connecting rod 64 pulls the front baffle 62, so that the front baffle 62 rotates by taking the hinge 63 as a rotation center, when the upper clamping block presses the steel ring, the protection mechanism 6 can form an L-shaped shielding structure, sparks and splashes in the welding zone 21 are prevented from flying to the front of an operator, and the personal safety of the operator is guaranteed.

Further, the ends of the worm 412 and the lead screw 53 are provided with spoke turnbuckles 416. The spoke knob 416 facilitates rotation.

When in use: firstly, according to the size of a steel wheel to be produced at present, a screw 53 is rotated, the height positions of the rotating centers of a first rotating arm 33 and a second rotating arm 32 are adjusted, so that the distance between the rotating center and a welding area 21 is matched with the radius of a steel ring to be welded, then a worm 412 is rotated, and the position of a clamping mechanism 4 on the first rotating arm 33 or the second rotating arm 32 is adjusted, so that the distance between the rotating centers of a lower clamping block 45 and the first rotating arm 33 is matched with the radius of the steel ring. Then, the steel ring to be welded can be hung on the lower clamping block 45 as shown in fig. 8, the auxiliary cylinder 43 is started, so that the upper clamping block 44 moves downwards and is matched with the lower clamping block 45 to clamp the steel ring, and the front baffle plate 62 is turned downwards. The main cylinder 36 is started, the main cylinder 36 pushes the hinged support 37 upwards, the hinged support 37 pulls the first rotating arm 33 and the second rotating arm 32 through the first connecting rod 35 and the second connecting rod 34, so that the steel ring is acted by tangential force, the seam parts are aligned and pressed, and the left protection mechanism 6 and the right protection mechanism 6 are also closed to form a shield for the welding area 21. The welding device 2 is then activated to weld the joint.

In conclusion, the circumferential alignment mechanism 3 and the protection mechanism 6 are arranged, so that the two sides of the steel ring joint are clamped and fixed, a tangential pressing force is provided, the welding effect is improved, the protection structure plays a role in shielding splashes and sparks, the protection mechanism 6 is supported by the clamping mechanism 4, the linkage effect is achieved, the structural simplicity is guaranteed, and the cost is reduced.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims

1. A butt welding platform for producing an electric vehicle hub comprises a machine base (1) and a welding device (2), a welding area (21) is arranged below the welding device (2), it is characterized in that a circumferential aligning mechanism (3) for clamping and aligning the joint of the steel rings to be welded is arranged on the machine base (1), the circumferential alignment mechanism (3) comprises a first rotating arm (33) and a second rotating arm (32) which have the same structure and are coaxially hinged on a fixed seat (31) right below the welding area (21) in a bilateral symmetry manner, the first rotating arm (33) and the second rotating arm (32) are symmetrically hinged with a first connecting rod (35) and a second connecting rod (34) which have the same structure, the first connecting rod (35) and the second connecting rod (34) are hinged on a hinged support (37), the bottom of the hinged support (37) is connected with a master cylinder (36) fixed on the fixed seat (31); the first rotating arm (33) and the second rotating arm (32) are both provided with a clamping mechanism (4) for fixing a steel ring, and the bottom of the clamping mechanism (4) is provided with a position adjusting mechanism (41) for adjusting the position of the clamping mechanism on the first rotating arm (33) or the second rotating arm (32).

2. The butt welding platform for producing the hub of the electric vehicle as claimed in claim 1, wherein the position adjusting mechanism (41) comprises a housing (411), the first rotating arm (33) penetrates through the housing (411) and is in sliding fit with the housing, a worm wheel (413) and a worm (412) which are in one-way transmission fit relation are arranged in the housing (411), a gear (414) which is coaxially connected is arranged on one side of the worm wheel (413), and a rack 415 which is matched with the gear (414) is arranged on the first rotating arm (33).

3. The butt welding platform for producing the hub of the electric vehicle as claimed in claim 2, wherein the clamping mechanism (4) comprises a rectangular frame (42) fixedly connected with the shell (411) and an auxiliary cylinder (43) mounted on the inner wall above the rectangular frame (42), an upper clamping block (44) is fixedly connected to the output end of the auxiliary cylinder (43), a lower clamping block (45) is arranged on the inner wall of the rectangular frame (42) opposite to the upper clamping block (44), and anti-skid teeth (46) which are matched in a staggered mode are arranged on the upper clamping block (44) and the lower clamping block (45).

4. The butt welding platform for producing the hub of the electric vehicle as claimed in claim 3, wherein a central adjusting mechanism (5) is arranged under the circumferential alignment mechanism (3), the central adjusting mechanism (5) comprises a base (51) fixed on the base (1) under the fixing seat (31), a screw rod (53) in threaded fit with the fixing seat (31) is rotatably mounted on the base (51), and a guide rail (52) which is parallel to the screw rod (53) and is in sliding fit with the fixing seat (31) is arranged on the base (1).

5. The butt welding platform for producing the hub of the electric vehicle as claimed in claim 3, wherein the first rotating arm (33) penetrates through the rectangular frame (42) and is in sliding fit with the rectangular frame (42).

6. The butt welding platform for producing the hub of the electric vehicle as claimed in claim 5, wherein a protection mechanism (6) for shielding a welding zone (21) is arranged on the clamping mechanism (4), the protection mechanism (6) comprises an upper baffle (61) fixed on the rectangular frame (42) and a front baffle (62) hinged with the upper baffle (61) through a hinge (63), and a third connecting rod (64) is hinged between the front baffle (62) and the upper clamping block (44).

7. The butt welding platform for producing the hub of the electric vehicle as claimed in claim 6, wherein the ends of the worm (412) and the screw rod (53) are provided with spoke turnbuckles (416).