CN212652908U

CN212652908U - Automatic welding device for large sheet metal part turnover

Info

Publication number: CN212652908U
Application number: CN202021830291.4U
Authority: CN
Inventors: 丁磊
Original assignee: Suzhou Hongzhouhui Intelligent Technology Co ltd
Current assignee: Suzhou Hongzhouhui Intelligent Technology Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-03-05
Anticipated expiration: 2030-08-27

Abstract

The utility model relates to a large-scale sheet metal component upset automatic welder uses in automatic welder's technical field, and it is including the turning device who is used for fixed and upset work piece, the arm device that can follow the length direction of work piece and slide, the last welder that is equipped with of arm device, turning device includes the base, rotates the roll-over stand of connection on the base, be equipped with the mounting groove that is used for laying the work piece of U-shaped on the roll-over stand, the both sides that lie in the work piece on the roll-over stand are equipped with splint, splint slide along the width direction of work piece and connect on the roll-over stand, rotate along the width direction of work piece on the roll-over stand and be connected with the lead screw, splint. The utility model has the advantages that: the automatic welding machine can automatically turn workpieces to any angle, and meanwhile, automatic welding is achieved through the mechanical arm device, so that the welding difficulty is reduced, and the welding precision is improved.

Description

Automatic welding device for large sheet metal part turnover

Technical Field

The utility model relates to an automatic welding device's technical field, more specifically says, it relates to a large-scale sheet metal component upset automatic welder.

Background

Welding refers to a process of joining welded parts by applying heat or pressure. Welding methods can be classified into three major categories, i.e., pressure welding, fusion welding, and brazing, according to welding processes, among which arc welding in fusion welding is most commonly used.

As shown in fig. 1, a large workpiece housing includes a plurality of outer plates 61, support rods 62, and other small components, which are fixedly connected by welding. The existing processing technology is that cold processing means such as cutting and bending are carried out on a plate to change the plate into the shape of a required part, then manual assembly spot welding is carried out, and finally comprehensive welding is carried out. In the welding process, the places needing to be welded relate to the periphery, the inside, the outside and other places of the workpiece shell, so that in the existing welding process, the workpiece shell needs to be lifted by hoisting equipment. Under the condition, manual welding can be limited by the space of the workpiece shell, so that the welding efficiency is low, the welding difficulty is high, meanwhile, the workpiece shell is difficult to turn over by hoisting equipment in a hoisting mode, and the workpiece shell is easy to damage when turning over.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a large-scale sheet metal component upset automatic welder, its advantage is, can carry out the automation to work piece class work piece and overturn arbitrary angle, realizes automatic weld through arm device simultaneously, reduces the welded degree of difficulty and improves welded precision.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a large-scale sheet metal component upset automatic welder, including the turning device that is used for fixed and upset work piece, can follow the arm device that the length direction of work piece slided, the last welder that is equipped with of arm device, turning device includes the base, rotates the roll-over stand of connection on the base, be equipped with the mounting groove that is used for laying the work piece of U-shaped on the roll-over stand, the both sides that lie in the work piece on the roll-over stand are equipped with splint, splint slide along the width direction of work piece and connect on the roll-over stand, rotate along the width direction of work piece on the roll-over stand and be connected with the lead screw.

The effect that above-mentioned setting reached: after the workpiece shells are assembled manually, the workpiece shells are hoisted in the mounting grooves, and after the screw rod rotates, the clamping plates clamp the workpieces. When the position of work piece is adjusted to needs, the roll-over stand rotated on the base this moment to drive the work piece and rotate together, the roll-over stand can forward and reverse rotation, thereby can expose the bottom of work piece, the weldment work of being convenient for. The mechanical arm device replaces manpower to weld the workpiece, so that the welding efficiency is improved.

Further setting: the outer side surface of the roll-over stand is arc-shaped and is fixed with a chain, a chain wheel meshed with the chain is arranged between the base and the roll-over stand, and the chain wheel is rotationally connected to the base.

The effect that above-mentioned setting reached: when the chain wheel rotates, the turnover frame is driven to rotate through the chain, then the workpiece rotates, so that the rotation function of the turnover frame and the workpiece is realized, and the chain wheel rotates through the motor, and the self-locking function of the motor is utilized, so that the rotated angle of the turnover frame is locked.

Further setting: the base is rotatably connected with a supporting wheel, and the turnover frame is abutted to the supporting wheel.

The effect that above-mentioned setting reached: the supporting wheels are used for reducing the friction force of the roll-over stand, so that the roll-over stand can rotate smoothly.

Further setting: the base is fixed with the connecting plate, rotate on the connecting plate and be connected with spacing wheel, be fixed with the limiting plate on the roll-over stand, the limiting plate is by the centre gripping between spacing wheel and supporting wheel.

The effect that above-mentioned setting reached: spacing wheel and supporting wheel are with the centre gripping of roll-over stand, prevent that the roll-over stand from breaking away from the supporting wheel, improve the security of roll-over stand upset in-process.

Further setting: the base is provided with a sliding rail along the width direction of the workpiece, and the sliding rail is provided with a displacement sensor for measuring the position of the workpiece in a sliding manner.

The effect that above-mentioned setting reached: the displacement sensor is used for detecting the position of the workpiece, and when the sizes of the workpieces are different, the coordinates of the workpiece are obtained through the displacement sensor, so that the mechanical arm device can read the position of the workpiece conveniently.

Further setting: and the roll-over stand is provided with an encoder for sensing the rotation angle of the roll-over stand and a sensor for sensing that the roll-over stand is positioned at the original point.

The effect that above-mentioned setting reached: the position of roll-over stand is the artificial initial point of setting for, is convenient for accurately to acquire the turned angle of roll-over stand through contrasting with the initial point, and the encoder is used for responding to the specific turned angle of roll-over stand, passes the signal to the arm device, and the arm device of being convenient for accurately reads the position of work piece.

Further setting: one side of base is equipped with the ground rail along the length direction of work piece, slide on the ground rail and be equipped with the slide, the robotic arm device is fixed on the slide, fixed servo motor on the slide, be fixed with the gear on servo motor's the output shaft, be equipped with on the ground rail with gear engagement's rack.

The effect that above-mentioned setting reached: the ground rail and the sliding seat are used for driving the mechanical arm device to move, so that the mechanical arm device is driven to a place needing welding.

Further setting: and a tank chain groove is formed in one side of the ground rail.

The effect that above-mentioned setting reached: many pipelines, wires need to be connected on the mechanical arm device, so that the wire pipeline is easy to damage in the reciprocating moving process, and the wires and the pipelines are arranged and protected through a tank chain groove.

Further setting: the ground rails are two in total and distributed on two sides of the workpiece, and the mechanical arm device is provided with a plurality of ground rails distributed on two sides of the workpiece.

The effect that above-mentioned setting reached: both sides all set up mechanical arm device, rotate certain angle when the work piece like this, can weld bottom and the inside of work piece respectively, improve welded efficiency.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the automatic welding machine has the function of automatic welding, improves the welding efficiency and reduces the difficulty of manual welding;

2. the turnover device can turn the workpiece to a required angle, and welding work is further facilitated.

Drawings

FIG. 1 is a schematic structural diagram of a case-like workpiece housing;

fig. 2 is an overall configuration diagram of the present embodiment;

FIG. 3 is a side view schematic of the structure of FIG. 2;

FIG. 4 is a schematic structural view of the roll-over stand and the workpiece of the present embodiment;

FIG. 5 is a schematic structural view of the roll-over stand and the base of the present embodiment;

FIG. 6 is an enlarged view at A in FIG. 5;

FIG. 7 is a schematic structural view of the roll-over stand of the present embodiment;

FIG. 8 is an enlarged view at B of FIG. 7;

fig. 9 is a schematic view showing the structure of the sprocket and the chain in the present embodiment.

In the figure: 1. a base; 11. a support wheel; 111. a limiting ring; 12. a connecting plate; 13. a limiting wheel; 14. a limiting plate; 15. a slide rail; 16. a displacement sensor; 2. a roll-over stand; 21. mounting grooves; 22. an encoder; 23. an inductor; 3. a splint; 31. a screw rod; 32. a drive motor; 33. a belt; 34. a pulley; 35. a slide bar; 4. a chain; 41. a sprocket; 42. a rotating electric machine; 43. connecting blocks; 44. a connecting rod; 5. a robotic arm device; 51. a ground rail; 52. a slide base; 53. a servo motor; 54. a tank chain groove; 61. an outer panel; 62. a support rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1: referring to fig. 2-5, the automatic welding device for overturning large sheet metal parts comprises an overturning device for fixing and overturning the workpieces, and a mechanical arm device 5 capable of sliding along the length direction of the workpieces, wherein a welding gun is fixed on the mechanical arm device 5. The turnover device comprises a base 1 fixedly arranged, and a turnover frame 2 rotatably connected to the base 1, wherein the turnover frame 2 is provided with two U-shaped mounting grooves 21, and the mounting grooves 21 are used for placing workpieces to be welded. The position of the roll-over stand 2 in the mounting groove 21 is provided with two clamping plates 3 for clamping the workpiece in a sliding manner, and the clamping plates 3 are connected to the roll-over stand 2 in a sliding manner along the width direction of the workpiece.

The manual work will need to weld the work piece concatenation, then place in mounting groove 21 position, splint 3 are close to each other next, press from both sides the work piece tight, when needing to adjust the position of work piece, rotate roll-over stand 2 for the welder is aimed at to the different side of work piece. The mechanical arm device 5 replaces manpower, moves a welding gun to a place needing welding, and welds a workpiece, so that the welding efficiency is improved.

Referring to fig. 4-7, a driving motor 32 is fixedly arranged on the roll-over stand 2, a screw rod 31 is rotatably connected to the roll-over stand 2, the screw rod 31 is a boundary line from a middle point, threads on two sides are opposite threads, two clamping plates 3 are respectively and threadedly connected to two ends of the screw rod 31, and when the screw rod 31 rotates, the two clamping plates 3 approach to or separate from each other. The head of the screw rod 31 and the head of the driving motor 32 are both provided with belt wheels 34, the belt wheels 34 are sleeved with belts 33, the screw rod 31 is automatically driven to rotate through the driving motor 32, and the self-locking function of the driving motor 32 is reused, so that the clamping plate 3 can clamp a workpiece. Splint 3 takes the shape of L, is fixed with slide bar 35 on the lateral wall of mounting groove 21, and splint 3 slides and connects on slide bar 35, and slide bar 35 restricts splint 3 and rotates for splint 3 can only move along slide bar 35's length direction.

Example 2, referring to fig. 5-8, a plurality of support wheels 11 are rotated on the base 1, and one roll-over stand 2 has four corresponding support wheels 11, and the support wheels 11 are arranged to reduce the friction between the roll-over stand 2 and the support wheels 11. Be fixed with connecting plate 12 on the base 1, rotate on the connecting plate 12 and have spacing wheel 13, spacing wheel 13 and supporting wheel 11 one-to-one, be fixed with curved limiting plate 14 on the roll-over stand 2, limiting plate 14 is located between spacing wheel 13 and the supporting wheel 11, and roll-over stand 2 breaks away from supporting wheel 11 is avoided in spacing setting up of wheel 13, plays spacing effect to roll-over stand 2. The supporting wheel 11 is fixedly provided with a limiting ring 111, and the limiting plate 14 is abutted against the limiting ring 111, so that the roll-over stand 2 can only rotate.

Referring to fig. 7-9, the outer side of the roll-over stand 2 is arc-shaped and fixed with a chain 4, a chain wheel 41 engaged with the chain 4 is arranged between the base 1 and the roll-over stand 2, the chain wheel 41 is rotatably connected to the base 1, and a rotating motor 42 is fixed on the base 1, and the rotating motor 42 is used for driving the chain wheel 41 to rotate. The sprocket 41 utilizes the self-locking function of the rotating motor 42 to lock the rotated angle of the roll-over stand 2, so as to ensure that the workpiece and the roll-over stand 2 do not shake in the welding process. Set up two chains 4 on same roll-over stand 2, the both ends that lie in chain 4 on roll-over stand 2 all are fixed with connecting block 43, and connecting block 43 alternates there is connecting rod 44, and connecting rod 44 one end and chain 4 welding, the other end pass connecting block 43 and threaded connection have a nut, are convenient for adjust the position of chain 4 like this for two chains 4 homoenergetic and sprocket 41 mesh.

Referring to fig. 7-8, the turning frame 2 is fixedly provided with an encoder 22 for sensing the rotation angle of the turning frame 2 and an inductor 23 for sensing the position of the turning frame 2 at the original point, when a workpiece is placed, the turning frame 2 is at the original point, so that when the position of the workpiece is required to be adjusted, the turning frame 2 needs to be rotated at the moment, the encoder 22 converts the rotation displacement of the turning frame 2 into an electric signal and transmits the electric signal to the mechanical arm device 5, the position of the workpiece can be read out by the mechanical arm device 5, and the mechanical arm device 5 can find the position needing welding.

Referring to fig. 4 to 6, a slide rail 15 is disposed on the base 1 along the width direction of the workpiece, a displacement sensor 16 for measuring the position of the workpiece is slidably disposed on the slide rail 15, the workpiece has different sizes, the displacement sensor 16 is used for sensing the side surface of the workpiece, the sensed side surface is used as a reference surface, and transmits a signal to the robot arm device 5, and the robot arm device 5 acquires information of the displacement sensor 16 to obtain position information of the reference surface of the workpiece, so that the robot arm device 5 can perform welding work conveniently.

Referring to fig. 2, a ground rail 51 is fixedly disposed on one side of the base 1 along a length direction of the workpiece, a sliding base 52 is slidably disposed on the ground rail 51, the arm device 5 is fixed on the sliding base 52, a servo motor 53 is fixed on the sliding base 52, a gear is fixed on an output shaft of the servo motor 53, and a rack engaged with the gear is disposed on the ground rail 51. The slide 52 and the robot arm device 5 are moved by a rack, a pinion and a servo motor 53. The two ground rails 51 are distributed on two sides of the base 1, and the plurality of arm devices 5 are distributed on two sides of the workpiece. Both sides all set up mechanical arm device 5, rotate certain angle when the work piece like this, can weld bottom and the inside of work piece respectively, improve welded efficiency.

Referring to fig. 2, one side of the ground rail 51 is provided with a tank chain groove 54. Many pipelines and wires need to be connected to the robot arm device 5, so that the wire pipelines are easily damaged in the reciprocating movement process, and the pipelines and the wires are arranged and protected through the tank chain groove 54.

The implementation principle of the above embodiment is as follows: firstly, after the workpiece shells are assembled manually, the workpiece shells are hoisted in the mounting groove 21, and after the screw rod 31 rotates, the clamping plate 3 clamps the workpiece. When the position of the workpiece needs to be adjusted, the roll-over stand 2 rotates on the base 1 at the moment, so that the workpiece is driven to rotate together. The robot arm device 5 replaces the manual work to weld the workpiece.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a large-scale sheet metal component upset automatic welder which characterized in that: including turning device, the arm device (5) that can follow the length direction of work piece and slide that are used for fixing and upset work piece, be equipped with welder on arm device (5), turning device includes base (1), rotates roll-over stand (2) of connection on base (1), be equipped with mounting groove (21) that are used for laying the work piece of U-shaped on roll-over stand (2), the both sides that lie in the work piece on roll-over stand (2) are equipped with splint (3), splint (3) slide along the width direction of work piece and connect on roll-over stand (2), it is connected with lead screw (31) to rotate along the width direction of work piece on roll-over stand (2), splint (3) and lead screw (31) threaded connection.

2. The automatic welding device for overturning large sheet metal parts according to claim 1, is characterized in that: the outer side surface of the roll-over stand (2) is arc-shaped and is fixed with a chain (4), a chain wheel (41) meshed with the chain (4) is arranged between the base (1) and the roll-over stand (2), and the chain wheel (41) is rotationally connected to the base (1).

3. The automatic welding device for overturning large sheet metal parts according to claim 1 or 2, which is characterized in that: the base (1) is connected with a supporting wheel (11) in a rotating mode, and the turnover frame (2) is connected with the supporting wheel (11) in an abutting mode.

4. The automatic welding device for overturning large sheet metal parts according to claim 3, is characterized in that: the base (1) is fixed with connecting plate (12), it is connected with spacing wheel (13) to rotate on connecting plate (12), be fixed with limiting plate (14) on roll-over stand (2), limiting plate (14) are by the centre gripping between spacing wheel (13) and supporting wheel (11).

5. The automatic welding device for overturning large sheet metal parts according to claim 1, is characterized in that: the base (1) is provided with a slide rail (15) along the width direction of the workpiece, and the slide rail (15) is provided with a displacement sensor (16) for measuring the position of the workpiece in a sliding manner.

6. The automatic welding device for overturning large sheet metal parts according to claim 1, is characterized in that: and the turning frame (2) is provided with an encoder (22) for sensing the rotation angle of the turning frame (2) and a sensor (23) for sensing that the turning frame (2) is positioned at the original point.

7. The automatic welding device for overturning large sheet metal parts according to claim 1, is characterized in that: one side of base (1) is equipped with ground rail (51) along the length direction of work piece, it is equipped with slide (52) to slide on ground rail (51), mechanical arm device (5) are fixed on slide (52), fixed servo motor (53) on slide (52), be fixed with the gear on the output shaft of servo motor (53), be equipped with on ground rail (51) with gear engagement's rack.

8. The automatic welding device for overturning large sheet metal parts according to claim 7, is characterized in that: and a tank chain groove (54) is formed in one side of the ground rail (51).

9. The automatic welding device for overturning large sheet metal parts according to claim 7, is characterized in that: the ground rails (51) are two in total and distributed on two sides of the workpiece, and the mechanical arm device (5) is provided with a plurality of ground rails distributed on two sides of the workpiece.