CN114147329A - Double-roller inner container roll welding equipment - Google Patents

Abstract

The invention belongs to the technical field of automation equipment, in particular to double-roller liner roll welding equipment, which comprises: a machine base; the positioning tool is arranged on the base; the welding mechanism is arranged on the side of the overlapping area and is used for fixedly connecting the lower ring of the liner with the upper ring of the liner; the welding mechanism comprises a first welding wheel and a second welding wheel, wherein the first welding wheel and the second welding wheel are respectively positioned on the inner side and the outer side of the overlapping area; and the first driving assembly is arranged in the base, connected with the first welding wheel and the second welding wheel and used for driving the first welding wheel and the second welding wheel to synchronously move at the inner side and the outer side of the overlapping area. According to the invention, the first driving assembly and the second driving assembly synchronously operate to synchronously drive the first welding wheel and the second welding wheel to perform roll welding work on two sides of the overlapping area, so that double-sided welding of the oven liner is realized, internal welding seams can be eliminated, the integral attractiveness is improved, and the difficulty of an enamel process is reduced.

Description

Double-roller inner container roll welding equipment

Technical Field

The invention belongs to the technical field of automation equipment, and particularly relates to double-roller liner roll welding equipment.

Background

The existing oven liner is formed by welding an upper liner ring, a lower liner ring and a bottom cover; during welding, the upper ring of the inner container and the lower ring of the inner container are fixed through the fixture in a positioning mode, then are preliminarily reinforced through the spot welding equipment, and then are subjected to finish machining through the roll welding equipment.

The existing roll welding equipment only performs welding processing on the outer side of the inner container of the oven, as shown in fig. 8, a placing groove for placing the outer end of the upper ring of the inner container is arranged at the outer end of the lower ring of the inner container, and only a welding wheel is arranged on the outer side of the inner container in the existing roll welding equipment for welding; because the upper liner ring and the lower liner ring are formed, when the upper liner ring and the lower liner ring are oppositely connected, the placing groove and the outer end of the upper liner ring are difficult to be tightly sewn, so that a welding seam 6 is formed on the inner side of the liner, the inner side of the liner formed by a welding machine is not smooth, and in an actual oven product, the inner side of the inner liner of the oven can be seen by a user when the oven is used, so that the attractiveness of the product is influenced, and the quality of the oven is influenced; moreover, after the seam welding of the oven liner is finished, the liner needs to be subjected to an enameling process, and the welding seam 6 can influence the enameling process.

Disclosure of Invention

The invention aims to provide double-roller liner roll welding equipment which can effectively improve the processing quality of a liner.

The purpose of the invention is realized as follows:

a dual roller liner seam welding apparatus comprising:

a machine base;

the positioning tool is arranged on the base and used for fixing the lower liner ring and the upper liner ring and enabling the lower liner ring and the upper liner ring to be oppositely abutted to form an overlapping area; and

the welding mechanism is arranged on the side of the overlapping area and is used for fixedly connecting the lower ring of the liner with the upper ring of the liner;

wherein the welding mechanism comprises a welding mechanism and a welding mechanism,

the first welding wheel and the second welding wheel are respectively positioned on the inner side and the outer side of the overlapping area; and

and the first driving assembly is arranged in the base, connected with the first welding wheel and the second welding wheel and used for driving the first welding wheel and the second welding wheel to synchronously move at the inner side and the outer side of the overlapping area.

Further, the first driving assembly comprises

The guide rail part is vertically arranged on the lower side of the overlapping area;

the sliding block part is arranged on the guide rail part and is connected with a driving motor which drives the sliding block part to move on the guide rail;

and the first welding wheel and the second welding wheel are arranged on the sliding block part, and a gap for forming the overlapping area is formed between the first welding wheel and the second welding wheel.

Furthermore, the first driving assembly further comprises a first driving arm and a second driving arm, the lower ends of the first driving arm and the second driving arm are mounted on the sliding block portion, and the upper ends of the first driving arm and the second driving arm are respectively connected with the first welding wheel and the second welding wheel.

Furthermore, the lower ends of the first driving arm and the second driving arm are rotatably arranged on the sliding block part, a first swing rod and a second swing rod are respectively transversely arranged on one side of the rotating ends of the first driving arm and the second driving arm, and the first swing rod and the second swing rod are connected with a pushing motor for pushing the first swing rod and the second swing rod.

Furthermore, the first welding wheel and the second welding wheel respectively comprise a second driving assembly which drives the first welding wheel and the second welding wheel to rotate, the second driving assembly comprises a driving motor and a transmission gear driven by the driving motor, and the transmission gear is connected with the first welding wheel/the second welding wheel.

Further, the location frock includes:

the positioning upright columns are arranged on the base and used for internally limiting the lower ring of the inner container and the upper ring of the inner container;

and the positioning fixture is arranged on the outer side of the positioning upright column and used for limiting the lower ring of the inner container and the upper ring of the inner container.

Further, the positioning jig includes:

the first clamp is arranged at the rear side of the positioning upright post and used for pushing the liner lower ring which is positioned at the first clamp and is directly abutted against the positioning upright post;

the second clamp is arranged on the upper side of the positioning upright post; the second clamp has an open state and a closed state, and when the second clamp is in the closed state, the second clamp is limited on the upper side of the lower ring of the inner container;

and the third clamp is arranged on the left side and the right side of the positioning upright post and used for limiting the left side and the right side of the lower ring of the liner.

Furthermore, the engine base is provided with

A first slide rail assembly moving laterally, and

the second sliding rail component which moves longitudinally is arranged on the first sliding rail component and is driven by the first sliding rail component to move; the second slide rail assembly is provided with the positioning clamp.

Further, location stand one side is equipped with the mounting bracket, first anchor clamps are equipped with first push rod including setting up in the mounting bracket bottom, second anchor clamps are including setting up the returning face plate at the mounting bracket top.

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

according to the invention, the first driving assembly and the second driving assembly synchronously operate to synchronously drive the first welding wheel and the second welding wheel to perform roll welding work on two sides of the overlapping area, so that double-sided welding of the oven liner is realized, internal welding seams can be eliminated, the integral attractiveness is improved, and the difficulty of an enamel process is reduced.

According to the invention, because the positioning upright columns are arranged on the second sliding plate, the distance relationship between the two positioning upright columns can be changed to adapt to the lower rings of the inner containers with different sizes by changing the transverse position and the longitudinal position of the positioning upright columns on the machine base. Meanwhile, the second clamp and the first clamp are arranged on the second sliding plate, so that the second clamp and the first clamp can move simultaneously along with the movement of the positioning stand column for adaptation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a first schematic structural diagram of the positioning tool.

Fig. 3 is a structural schematic diagram of the positioning tool.

Fig. 4 is a schematic structural view of the positioning jig.

Fig. 5 is a schematic view of the installation of the welding mechanism.

Fig. 6 is an overall schematic view of the welding mechanism.

Fig. 7 is an exploded view of the first weld wheel.

FIG. 8 is a schematic view of the assembly of the inner container in the prior art.

Fig. 9 is a schematic structural diagram of the overlapped area before the liner is welded.

Fig. 10 is a structural schematic diagram of the inner container at the overlapping area after welding.

The reference numerals in the figures denote the meanings:

1. a machine base; 11. a first slide rail assembly; 111. a first slide rail; 112. a first slide plate; 113. a through opening part; 12. a second slide rail assembly; 121. a second slide rail; 122. a second slide plate; 13. mounting a table top; 131. an opening part; 21. a lower ring of the inner container; 22. an inner container upper ring; 23. an overlap region; 3. a welding mechanism; 31. a first welding wheel; 32. a second weld wheel; 33. a first drive assembly; 331. a guide rail portion; 332. a slider portion; 333. a first drive arm; 334. a second drive arm; 335. a void; 336. a first swing lever; 337. a second swing lever; 338. a push motor; 34. a second drive assembly; 341. a drive motor; 342. a transmission gear; 343. a control component; 344. a bevel gear; 4. positioning the upright post; 5. positioning a clamp; 51. a first clamp; 511. a first push rod; 52. a second clamp; 521. a turnover plate; 53. a third clamp; 531. a panel portion; 532. abutting against the push rod; 54. a mounting frame; 6. and (7) welding seams.

Detailed Description

The invention is further described below with reference to specific examples:

a double-roller inner container roll welding device comprises

A machine base 1;

the positioning tool is arranged on the base 1 and used for fixing the inner container lower ring 21 and the inner container upper ring 22 and enabling the inner container lower ring 21 and the inner container upper ring 22 to be oppositely abutted to form an overlapping area 23;

and

the welding mechanism 3 is arranged on the side of the overlapping area 23 and is used for fixedly connecting the inner container lower ring 21 with the inner container upper ring 22;

wherein the welding mechanism 3 comprises a welding mechanism,

a first welding wheel 31 and a second welding wheel 32, wherein the first welding wheel 31 and the second welding wheel 32 are respectively positioned at the inner side and the outer side of the overlapping area 23; and

and the first driving assembly 33 is arranged in the machine base 1, connected with the first welding wheel 31 and the second welding wheel 32, and used for driving the first welding wheel 31 and the second welding wheel 32 to synchronously move on the inner side and the outer side of the overlapping area 23.

As shown in fig. 1, a mounting table 13 is arranged on the machine base 1, and the positioning tool and the welding mechanism 3 are arranged on the mounting table 13; an opening 131 is provided in the center of the mounting table 13 for placing the welding mechanism 3, so that the welding mechanism 3 can move from bottom to top to connect the inner container lower ring 21 and the inner container upper ring 22 which are oppositely abutted.

As shown in fig. 3 in detail, a first sliding rail assembly 11 moving transversely is arranged on a mounting table 13 of the machine base 1; the first slide rail assembly 11 includes a first slide rail 111 transversely disposed on the mounting table 13, two first slide plates 112 are mounted on the first slide rail 111, left and right, with the opening 131 as a center, the first slide plates 112 are connected to a power source for driving the first slide plates to move transversely on the first slide rail 111, the power source for transverse movement is generally a servo motor, and the servo motor drives the first slide plates 112 to move through a screw rod sliding sleeve structure. The first sliding plate 112 is provided with a second sliding rail assembly 12 which moves longitudinally, specifically, the second sliding rail assembly 12 includes two second sliding rails 121 respectively disposed on the two first sliding plates 112, a second sliding plate 122 respectively disposed on the two second sliding rails 121, and a longitudinal motion power source which drives the second sliding plate 122 to move, and similarly, the longitudinal motion power source is generally a servo motor which drives the second sliding plate 122 to move through a screw rod sliding sleeve structure; the positioning tools are arranged on the first sliding plate 112 and the second sliding plate 122, and the layout conditions of the positioning tools are adjusted by adjusting the positions of the second sliding plate 122 and the first sliding plate 112, so that installation positions capable of accommodating different inner containers are obtained, and the inner containers with different sizes are adapted.

Specifically, the positioning tool comprises a positioning upright post 4 which is arranged on the base 1 and used for internally limiting the inner container lower ring 21 and the inner container upper ring 22; and

and the positioning fixture 5 is arranged on the outer side of the positioning upright post 4 and used for limiting the inner container lower ring 21 and the inner container upper ring 22.

Referring to fig. 2 and 3, in the present invention, the inner container lower ring 21 is formed by bending a flat plate into a U-shaped component by a bending device of the inner container lower ring 21, and is combined with the inner container upper ring 22 to form an approximately square ring component, wherein the overlapping region 23 refers to an overlapping portion where the side edge of the inner container lower ring 21 is intersected with the side edge of the corresponding inner container upper ring 22, and because the inner container lower ring 21 is U-shaped, two overlapping regions 23 are provided on the whole ring component, and two welding mechanisms 3 are required to be provided for processing; before the roll welding operation, a manufacturer performs a spot welding operation on the overlapping area 23 of the liner lower ring 21 and the liner upper ring 22, and then performs roll welding to obtain preliminary qualification. In this embodiment, the two positioning columns 4 are fixed on the second sliding plate 122 and are provided with two positioning columns, specifically, the two positioning columns 4 are fixed on the second sliding plate 122 through a bolt structure and are integrally rectangular section pieces, the two positioning columns 4 are arranged close to one side of the inner container lower ring 21, and the transverse distance between the two positioning columns 4 is equal to the inner width of the inner container lower ring 21, so that when the inner container lower ring 21 is installed on the positioning columns 4, the two positioning columns 4 are arranged at two bending angles of the inner container lower ring 21 for internal limiting. In some embodiments, the positioning columns 4 may be provided in plurality, and two positioning columns 4 may already meet the use requirement, and a free space is needed to install the welding mechanism 3 to perform inside and outside welding on the outer end of the inner container lower ring 21. And because the positioning upright posts 4 are arranged on the second sliding plate 122, the liner lower ring 21 with different sizes can be adapted by changing the transverse position and the longitudinal position of the positioning upright posts 4 on the machine base 1 so as to change the distance relationship between the two positioning upright posts 4.

Further, the positioning jig 5 includes:

the first clamp 51 is arranged at the rear side of the positioning upright post 4 and used for pushing the liner lower ring 21 which is positioned between the first clamp 51 and the positioning upright post 4 to abut against the positioning upright post 4;

a second clamp 52 arranged on the upper side of the positioning column 4; the second clamp 52 has an open state and a closed state, and when the second clamp 52 is in the closed state, the second clamp 52 is limited at the upper side of the inner container lower ring 21;

and third clamps 53 arranged on the left and right sides of the positioning column 4 and used for limiting the left and right sides of the liner lower ring 21.

Specifically, as shown in fig. 3 and 4, a mounting frame 54 is disposed on the rear side of the positioning column 4, the mounting frame 54 is specifically a mounting section bar fixed on the second sliding plate 122, the first fixture 51 includes two sets of first push rods 511 disposed on the lower side and the upper side of the mounting frame 54, while an air cylinder for driving the first push rods 511 is disposed on the other side of the mounting section bar, the first push rods 511 push the inner liner lower ring 21 to move toward the positioning column 4 for clamping and positioning the rear end of the inner liner lower ring 21, the second fixture 52 includes a turning plate 521 disposed on the top of the mounting frame 54, and a turning air cylinder for driving the turning plate 521 to turn is disposed on the other side of the mounting frame 54; when the turning plate 521 is in an open state, the turning plate 521 is longitudinally arranged at the rear side of the upper end of the positioning upright post 4, at this time, the liner lower ring 21 can be placed outside the positioning upright post 4 from top to bottom, and after the liner lower ring 21 is placed, the turning cylinder works to drive the turning plate 521 to turn downwards and transversely place on the upper side of the positioning upright post 4, so that the liner lower ring 21 is limited, and then the first clamp 51 works again to perform rear limiting. Since the second clamp 52 and the first clamp 51 are both disposed on the second sliding plate 122, they can move simultaneously with the movement of the positioning column 4 for adaptation. Moreover, the movable second clamp 52, the first clamp 51 and the positioning column 4 can adopt an internal expansion type installation when the liner lower ring 21 is installed, namely, the liner lower ring 21 is placed at first, then the positioning column 4 expands outwards to abut against the inner side of the liner lower ring 21, and the second clamp 52 and the first clamp 51 abut against the outer side of the liner lower ring 21 to be clamped.

The third clamp 53 is also disposed on the second sliding plate 122, is disposed on two outer sides of the two positioning posts 4, and has a panel portion 531 abutting against the left and right sides of the inner container lower ring 21, and the panel portion 531 is driven by the driving cylinder to move left and right, so that it can abut against the left and right sides of the inner container lower ring 21 for limiting. An abutting push rod 532 is further telescopically provided in the panel portion 531, and a tip end of the abutting push rod 532 faces the overlapping area 23 and abuts against the overlapping area 23 to perform a position limitation, thereby making the roll welding more stable.

Further, the first driving assembly 33 comprises

A guide rail portion 331 vertically disposed below the overlap region 23;

a slide block portion 332 disposed on the guide rail portion 331, and connected with a driving motor for driving the slide block portion 332 to move on the guide rail;

the lower ends of the first driving arm 333 and the second driving arm 334 are mounted on the slider portion 332, the upper ends of the first driving arm 333 and the second driving arm 334 are respectively connected to the first welding wheel 31 and the second welding wheel 32, and a gap 335 for placing the overlapping area 23 is left between the first driving arm 333 and the second driving arm 334.

Referring to fig. 1, 5, 6 and 9, the guide rail portion 331 is fixed to the lower side of the first sliding plate 112, and extends downward through the opening 131 of the mounting table 13, the slider portion 332 is disposed at the bottom of the guide rail portion 331, and the guide rail portion 331 is provided with a servo motor for driving the slider portion 332 to move on the guide rail portion 331; the first driving arm 333 and the second driving arm 334 are respectively disposed at the left and right sides of the slider portion 332, so that the gap 335 is formed between the first driving arm 333 and the second driving arm 334, the first welding wheel 31 and the second welding wheel 32 are respectively disposed at the top of the first driving arm 333 and the second driving arm 334, the first sliding plate 112 is provided with a through opening portion 113 for exposing the first welding wheel 31 and the second welding wheel 32, and the first welding wheel 31 and the second welding wheel 32 are located at the left and right sides of the overlapping region 23.

Actually, the lower ends of the first driving arm 333 and the second driving arm 334 are rotatably disposed on the slider portion 332, a first swing lever 336 and a second swing lever 337 are respectively transversely disposed at one side of the rotating ends of the first driving arm 333 and the second driving arm 334, the first driving arm 333 and the first swing lever 336 are connected to form an L shape, the first swing lever 336 and the second swing lever 337 extend toward the same side, and a double-head push motor 338 is disposed at the extended end thereof; when the pushing motor 338 works, the first swinging rod 336 is driven to swing clockwise, and the second swinging rod 337 is driven to swing counterclockwise, so that the first driving arm 333 and the second driving arm 334 rotate around their rotation points towards the overlapping area 23, and the first welding wheel 31 and the second welding wheel 32 abut against the overlapping area 23; at this time, a roll welding operation may be performed, in which the slider portion 332 moves upward and drives the first driving arm 333 and the second driving arm 334 to move from bottom to top, so that the first welding wheel 31 and the second welding wheel 32 contact the entire overlapping area 23.

The first welding wheel 31 and the second welding wheel 32 each include a second driving assembly 34 for driving the first welding wheel 31 and the second welding wheel 32 to rotate, as shown in fig. 6 and 7, taking the first welding wheel 31 as an example, the rear side of the first welding wheel 31 is connected to a control assembly 343 for providing welding capability for the first welding wheel 31, the second driving assembly 34 includes a driving motor 341 disposed on the lower side of the first welding wheel 31, a bevel gear 344 is disposed on the driving motor 341, the first welding wheel 31 is connected to a transmission gear 342, and the bevel gear 344 is engaged with the transmission gear 342, so that the driving motor 341 drives the first welding wheel 31 to rotate. It should be noted that the operating frequency of the driving motor 341 on the first welding wheel 31 and the second welding wheel 32 should be the same, so as to drive the first welding wheel 31 and the second welding wheel 32 to rotate synchronously, thereby obtaining the best welding effect.

In this embodiment, there are two guide rail portions 331 corresponding to the two first sliding plates 112 and the left and right sides of the liner lower ring 21, and configured to drive the two sets of first welding wheels 31 and second welding wheels 32 to simultaneously perform roll welding on the left and right sides of the liner lower ring 21. As shown in fig. 10, the first driving assembly 33 and the second driving assembly 34 synchronously operate to synchronously drive the first welding wheel 31 and the second welding wheel 32 to perform seam welding work on two sides of the overlapping area 23, so as to realize double-sided welding of the oven liner, thereby eliminating the internal welding seam 6, increasing the overall aesthetic property, and simultaneously reducing the difficulty of the enamel process.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (9)

1. The utility model provides a two gyro wheel inner bag seam welding equipment which characterized in that includes:

a machine base (1);

the positioning tool is arranged on the base (1) and used for fixing the inner container lower ring (21) and the inner container upper ring (22) and enabling the inner container lower ring (21) and the inner container upper ring (22) to be oppositely abutted to form an overlapping area (23); and

the welding mechanism (3) is arranged on the side of the overlapping area (23) and is used for fixedly connecting the inner container lower ring (21) with the inner container upper ring (22);

wherein the welding mechanism (3) comprises,

a first welding wheel (31) and a second welding wheel (32), the first welding wheel (31) and the second welding wheel (32) being respectively located inside and outside the overlapping area (23); and

the first driving assembly (33) is arranged in the machine base (1), connected with the first welding wheel (31) and the second welding wheel (32) and used for driving the first welding wheel (31) and the second welding wheel (32) to synchronously move on the inner side and the outer side of the overlapping area (23).

2. A double roller liner seam welding apparatus according to claim 1, wherein said first drive assembly (33) comprises:

a guide rail portion (331) vertically disposed below the overlap region (23);

the sliding block part (332) is arranged on the guide rail part (331) and is connected with a driving motor for driving the sliding block part (332) to move on the guide rail;

the first welding wheel (31) and the second welding wheel (32) are mounted on the slider portion (332), and a gap (335) for accommodating the overlapping area (23) is formed between the first welding wheel (31) and the second welding wheel (32).

3. The double roller liner seam welding apparatus of claim 2, wherein: the first driving assembly (33) further comprises a first driving arm (333) and a second driving arm (334), the lower ends of the first driving arm (333) and the second driving arm (334) are mounted on the sliding block portion (332), and the upper ends of the first driving arm (333) and the second driving arm are respectively connected with the first welding wheel (31) and the second welding wheel (32).

4. A twin roller liner seam welding apparatus as defined in claim 3 wherein: the lower ends of the first driving arm (333) and the second driving arm (334) are rotatably arranged on the slider part (332), a first swing rod (336) and a second swing rod (337) are respectively transversely arranged on one side of the rotating ends of the first driving arm (333) and the second driving arm (334), and the first swing rod (336) and the second swing rod (337) are connected with a pushing motor (338) for pushing the first swing rod (336) and the second swing rod (337).

5. The double roller liner seam welding apparatus of claim 1, wherein: the first welding wheel (31) and the second welding wheel (32) both comprise a second driving assembly (34) for driving the first welding wheel (31)/the second welding wheel (32) to rotate, the second driving assembly (34) comprises a driving motor (341) and a transmission gear (342) driven by the driving motor (341), and the transmission gear (342) is connected with the first welding wheel (31)/the second welding wheel (32).

6. The double-roller liner roll welding device according to any one of claims 1 to 5, wherein the positioning tool comprises:

the positioning upright posts (4) are arranged on the base (1) and used for internally limiting the inner container lower ring (21) and the inner container upper ring (22);

and the positioning fixture (5) is arranged on the outer side of the positioning upright post (4) and is used for limiting the inner container lower ring (21) and the inner container upper ring (22) externally.

7. A double roller liner seam welding apparatus according to claim 6, characterized in that said positioning fixture (5) comprises:

the first clamp (51) is arranged at the rear side of the positioning upright post (4) and used for pushing the liner lower ring (21) which is positioned between the first clamp (51) and the positioning upright post (4) to abut against the positioning upright post (4);

the second clamp (52) is arranged on the upper side of the positioning upright post (4); the second clamp (52) has an open state and a closed state, and when the second clamp (52) is in the closed state, the second clamp (52) is limited at the upper side of the inner container lower ring (21);

and the third clamps (53) are arranged on the left side and the right side of the positioning upright post (4) and used for limiting the left side and the right side of the inner container lower ring (21).

8. The double roller liner seam welding apparatus of claim 6, wherein: the machine base (1) is provided with

A first slide rail assembly (11) moving laterally, and

the second sliding rail component (12) moves longitudinally, is arranged on the first sliding rail component (11), and is driven by the first sliding rail component (11) to move; the second slide rail component (12) is provided with the positioning clamp (5).

9. The double roller liner seam welding apparatus of claim 7, wherein: one side of the positioning upright post (4) is provided with an installation frame (54), the first clamp (51) comprises a first push rod (511) arranged at the bottom of the installation frame (54), and the second clamp (52) comprises a turnover plate (521) arranged at the top of the installation frame (54).

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