CN117182377A - Welding device and welding method for producing seat capable of being unfolded for rest - Google Patents

Abstract

The application discloses a welding device and a welding method for producing a seat with a deployable rest, which can be used for conveniently fixing a plurality of points on a seat framework so as to facilitate welding, and can realize automatic welding according to a welding mechanism capable of moving in a triaxial manner in the welding device, so that the manual operation strength and difficulty are reduced.

Description

Welding device and welding method for producing seat capable of being unfolded for rest

Technical Field

The application relates to the technical field of seat processing, in particular to a welding device and a welding method for producing a seat capable of being unfolded for rest.

Background

In order to provide diversity, the backrest of the existing seat is arranged to be expandable, so that people can lie down for rest conveniently, and the diversity and practicability of the seat are reflected.

In the course of working, when the seat skeleton welds, because the welding point position of seat skeleton is located different positions, if adopt the manual work to weld, not only waste time and energy, still can not guarantee the welding quality at every position, and through automatic welding, then need carry out the reentrant welding area after the complete location to the seat skeleton, thereby when convenient automatic welding, control system finds the accurate point position and welds, because the location of seat skeleton is carried out the centre gripping through a plurality of clamping equipment separately, therefore carry out the welding again after carrying out manual centre gripping, can waste a large amount of time, the staff is in order to save time, enlarge output, still probably cause the dynamics of centre gripping not uniform at the in-process of centre gripping, thereby lead to not hard up and influence welded quality.

Disclosure of Invention

Therefore, in order to solve the above-mentioned shortcomings, the application provides a welding device and a welding method for producing a seat with a deployable rest, the welding device is provided with a rotary welding operation table, clamping mechanisms are arranged on two table tops of the operation table, and a welding mechanism capable of moving along three axes is arranged at the lower end of the welding operation table, so that a worker can conveniently clamp a seat framework and simultaneously overturn the seat framework with the clamped seat framework to the lower end for welding operation, the time is saved, the looseness caused by different clamping forces during clamping the seat framework is avoided, the welding quality is effectively ensured, and a protection mechanism is arranged on the outer side of the welding device, so that electric sparks generated in the welding process can be prevented from splashing on the worker clamping the seat framework to cause injury.

In a first aspect, the present application provides a welding device for producing a seat for a deployable rest, comprising a support bar vertically disposed on a chassis;

the welding operation table is rotatably arranged on the supporting rod, and clamping mechanisms are arranged on two surfaces of the welding operation table;

the protection mechanism is arranged on the underframe at the outer side of the welding operation table; the welding mechanism is arranged at the lower end of the welding operation table and is fixed on the protection mechanism;

a plurality of clamping blocks capable of being transversely or longitudinally adjusted are arranged in the clamping mechanism, and the clamping blocks are used for fixing the framework of the seat;

the protective mechanism is arranged on the underframe in a lifting manner, and the welding operation table can be rotated conveniently by descending the protective mechanism;

the welding mechanism can move in three axes to realize the welding of each point position of the seat framework.

Further, the clamping mechanism comprises a base, and a plurality of sliding rods are transversely arranged on the base;

the sliding adjusting components are movably arranged on the sliding rod;

the installation block is installed on the sliding adjusting assembly, and a V-shaped placing groove for placing the seat framework is also formed in the installation block; and

and the clamp is arranged on the mounting block and clamps the seat framework.

Further, the sliding adjusting assembly comprises a first sliding block, and the first sliding block is slidably arranged on a sliding rod of the base and is fixed through a fastener;

the support block is arranged on the first sliding block, and a sliding groove is longitudinally formed in the side surface of the support block; and

the second sliding block is slidably arranged in the sliding groove of the supporting block and is provided with a mounting block.

Can place the back to each point position through above setting to seat skeleton is fixed to guarantee the stability of centre gripping, and conveniently carry out the spot welding.

Further, a limiting block is arranged on a sliding groove formed in the side face of the supporting block, and the second sliding block is limited through the limiting block.

Through the arrangement, the second sliding block can be prevented from falling off from the sliding groove of the supporting block, and subsequent clamping and the like are affected.

Further, the two support rods are symmetrically arranged at the middle positions of the two ends of the underframe, a clamping block is arranged on the support rod through a rotating connecting piece, one end of the clamping block is a cylinder, a rectangular groove used for a welding operation table to penetrate through is formed in the other end of the clamping block, the side face of the welding operation table penetrates through the rectangular groove and penetrates through the cylinder to be inserted into the side face of the welding operation table through a locking screw rod, and the welding operation table is connected with the support rod in a rotating mode.

The outer end of the clamping block is also fixed with a rotating handle, two end parts of the rotating handle are provided with fixing holes which are symmetrically arranged compared with the clamping block, and the supporting rod is provided with another locking screw rod which penetrates through the supporting rod and is connected with any fixing hole.

Through the arrangement, the welding operation table can be conveniently installed and fixed, meanwhile, the welding operation table can be conveniently turned over, the welding operation is convenient, meanwhile, a worker can conveniently clamp another seat framework, the time for clamping the seat framework is saved, and the yield is effectively improved.

Further, the protection machanism is two sets of altogether, and the subtended setting is at the outer end of welding operation platform, and every protection machanism of group includes backup pad and expansion plate, offer the holding hole in the backup pad, offered the holding tank in the inner wall and the bottom of holding hole, the expansion plate is arranged in this holding tank and is kept going up and down, still is provided with the elastic component in the holding tank bottom.

Through the arrangement, electric sparks generated in the welding process are prevented from splashing on the body of a worker, unnecessary injuries are caused, and the turnover of the welding operation table can be facilitated by lowering the telescopic plate.

Further, a connecting mechanism is arranged between the two groups of protection mechanisms, the protection mechanisms are vertically arranged on the underframe and connected together through the connecting mechanism, the connecting mechanism specifically comprises a connecting screw rod and a connecting block, the connecting screw rod penetrates through the supporting plate and the supporting rod, the connecting block is clamped at the edge part of the supporting plate and provided with a U-shaped hole for the connecting screw rod to penetrate through, and the connecting block is sleeved at the outer end of the connecting screw rod and clung to the connecting block through a fastener so as to be fixed.

Through the arrangement, the stability of the protection mechanism is improved, and the protection mechanism is prevented from toppling to one side, so that welding is influenced.

Further, the welding mechanism comprises

The mounting plates are arranged at two ends of the inner side of the protection mechanism;

the first guide posts are oppositely arranged between the mounting plates at the two ends of the welding operation table;

the first driving shaft is arranged between the mounting plates in parallel with the first guide pillar;

the first driving device is arranged outside any mounting plate and used for driving the first driving shaft to rotate;

the first sliding table is connected to the first guide posts and the first driving shafts at the two ends of the welding operation table and moves along with the direction of the first guide posts according to the rotation of the first driving shafts;

the second guide post is arranged on the side surface of the first sliding table and is kept perpendicular to the first guide post;

the second driving shaft is arranged on the side surface of the first sliding table in parallel with the second guide post;

the second driving device is arranged on the side surface of the first sliding table and drives the second driving shaft to rotate;

the second sliding table is arranged at the outer ends of the second guide post and the second driving shaft and moves along with the direction of the second guide post according to the rotation of the second driving shaft; and

the telescopic device is arranged on the outer side of the second sliding table and keeps the telescopic direction upwards, and a welding placement block for placing welding equipment is arranged at the end part of the telescopic device.

The three-axis motion of the welding mechanism can be realized through the arrangement, so that each point position of the seat framework is conveniently welded, fixed-point welding is ensured, and welding quality is improved.

In a second aspect, the present application provides a welding method for producing a seat for a deployable rest, comprising the steps of:

s1, providing the welding device for producing the seat with the expandable rest;

s2, mounting a seat framework to be welded on a clamping mechanism of a welding operation table, and clamping each point of the seat framework through a clamping block which can be transversely or longitudinally adjusted in the clamping mechanism;

s3, determining the position of a welding point according to the fixed seat framework, and inputting the XYZ coordinates of the position of the welding point into a control system;

s4, after the welding point positions are determined, rotating a welding operation table to keep the seat framework corresponding to the welding mechanism at the bottom;

s5, controlling the welding mechanism to move in the XYZ axis direction according to the coordinate value of the welding point fed back by the control system, realizing the point welding of the seat framework, and simultaneously, in the welding process, a worker can install another seat framework at the other end of the welding operation table.

The application has the following beneficial effects:

firstly, the welding device and the welding method can realize automatic welding after clamping the desk and chair framework, reduce the manpower labor and the operation difficulty and also ensure the welding quality.

Secondly, this welding set and welding method can be convenient for carry out the centre gripping to another seat skeleton when welding through rotatable welding operation panel, guarantees the stability of centre gripping, has saved the time of independent centre gripping simultaneously, has enlarged output.

Finally, the welding device and the welding method are provided with the protection mechanism at the outer end, so that workers clamping the seat framework can be effectively protected from being scalded by electric sparks generated during welding, and the safety is ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate the application and together with the description serve to explain, without limitation, the application. In the drawings:

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

FIG. 2 is a schematic view of the present application in a front view;

FIG. 3 is a schematic side view of the present application;

FIG. 4 is a schematic view of a clamping mechanism according to the present application;

FIG. 5 is a schematic illustration of the connection of the slip adjustment assembly to the mounting block and clamp in the clamping mechanism of the present application;

FIG. 6 is a schematic illustration of the present application with the clamping mechanism removed;

FIG. 7 is a schematic illustration of the structure of the present application with the clamping mechanism, the shielding mechanism and the welding mechanism removed;

FIG. 8 is a schematic view of the installation of FIG. 7;

FIG. 9 is a schematic view of the structure of the present application with the clamping mechanism, welding mechanism and welding station removed;

FIG. 10 is a schematic view of the protective mechanism of the present application;

FIG. 11 is a schematic view of the structure of a connecting block for connecting two protection mechanisms in the present application;

FIG. 12 is a schematic view of a welding mechanism according to the present application;

in the figure: 1. a chassis; 2. a support rod; 2.1, rotating the handle; 2.2, locking the screw rod; 2.3, clamping blocks; 3. a welding operation table; 4. a clamping mechanism; 4.1, a base; 4.2, a sliding adjusting component; 4.21, a first slider; 4.22, fasteners; 4.23, supporting blocks; 4.24, limiting blocks; 4.25, a second sliding block; 4.3, mounting blocks; 4.4, clamping; 5. a protective mechanism; 5.1, a supporting plate; 5.2, a telescopic plate; 6. a welding mechanism; 6.1, mounting plate; 6.2, a first driving device; 6.3, a first guide post; 6.4, a first driving shaft; 6.5, a first sliding table; 6.6, a second driving device; 6.7, a second guide post; 6.8, a second drive shaft; 6.9, a second sliding table; 6.10, a telescopic device; 6.11, welding the placing blocks; 7. a connecting screw; 8. and (5) connecting a block.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the embodiments of the present application, it should be understood that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate orientations or positional relationships based on those shown in the drawings, or those conventionally put in place when the product of the application is used, or those conventionally understood by those skilled in the art, merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the embodiments of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Example 1

Referring to fig. 1 to 12, the application provides a welding device for producing a seat capable of unfolding for rest, which comprises a supporting rod 2 vertically arranged on a bottom frame 1;

a welding operation table 3 rotatably mounted on the support rod 2 and provided with a clamping mechanism 4 on both faces of the welding operation table 3 (only one face is shown for convenience of display);

the protection mechanism 5 is arranged on the underframe 1 outside the welding operation table 3; the welding mechanism 6 is arranged at the lower end of the welding operation table 3 and is fixed on the protection mechanism 5;

a plurality of clamping blocks capable of being transversely or longitudinally adjusted are arranged in the clamping mechanism 4, and the clamping blocks are used for fixing the framework of the seat;

the protective mechanism 5 is arranged on the underframe 1 in a lifting manner, and the welding operation table 3 can be conveniently rotated by the descending of the protective mechanism 5;

the welding mechanism 6 can move in three axes to realize the welding of each point position of the seat framework.

Referring to fig. 4, in this embodiment, the clamping mechanism 4 includes a base 4.1, and a plurality of sliding rods are transversely disposed;

the sliding adjusting components 4.2 are movably arranged on the sliding rod;

the installation block 4.3 is installed on the sliding adjusting assembly 4.2, and a V-shaped placing groove for placing the seat framework is also formed in the installation block 4.3; and

and the clamp 4.4 is arranged on the mounting block 4.3 and used for clamping the seat framework.

The clamp 4.4 may be configured as a manual clamp or a clamp driven pneumatically, electrically, or the like, as long as it is capable of fixing the seat frame to all mechanisms in the V-shaped placement groove of the mounting block 4.3.

Referring to fig. 5, in this embodiment, the sliding adjustment assembly 4.2 includes a first slider 4.21 slidably mounted on a sliding rod of the base 4.1 and fixed by a fastener 4.22;

the fastener may be configured as a bolt, as may other elements capable of abutting the first slider 4.21 against the sliding bar of the base 4.1.

The support block 4.23 is arranged on the first sliding block 4.21, and a sliding groove is longitudinally formed in the side surface of the support block 4.23; and

the second sliding block 4.25 is slidably arranged in the sliding groove of the supporting block 4.23, and the mounting block 4.3 is arranged on the second sliding block 4.25.

In this embodiment, a limiting block 4.24 is disposed on a chute formed on a side surface of the supporting block 4.23, the limiting block 4.24 is mounted on an edge portion of the chute through a fastener, and the limiting block 4.24 is used for limiting the second sliding block 4.25.

Referring to fig. 7 and 8, in this embodiment, the two support rods 2 are symmetrically disposed at middle positions of two ends of the chassis 1, a fixture block 2.3 is mounted on the support rod 2 through a rotation connector, one end of the fixture block 2.3 is a cylinder, a rectangular slot through which the welding operation table 3 passes is formed in the other end of the fixture block, a side surface of the welding operation table 3 passes through the rectangular slot and is inserted into a side surface of the welding operation table 3 through a locking screw 2.2 passing through the cylinder, rotation connection between the welding operation table 3 and the support rod 2 is achieved, a rotating handle 2.1 is further fixed at an outer end of the fixture block 2.3, fixing holes are formed in two ends of the rotating handle 2.1, and compared with the fixture block 2.3, another locking screw 2.2 passing through the support rod and being connected with any fixing hole is disposed on the support rod 2.

Referring to fig. 9 and 10, in this embodiment, the two sets of protection mechanisms 5 are disposed at the outer ends of the welding console 3 in opposite directions, each set of protection mechanisms 5 includes a support plate 5.1 and a telescopic plate 5.2, a receiving hole is formed in the support plate 5.1, a receiving groove is formed in the inner wall and the bottom of the receiving hole, the telescopic plate 5.2 is disposed in the receiving groove to be lifted, and an elastic member is disposed at the bottom of the receiving groove (the drawing is not shown, but such a structure is not repeated in the prior art).

Referring to fig. 9 and 11, in this embodiment, a connection mechanism is disposed between two sets of protection mechanisms 5, and the protection mechanisms 5 are kept vertically mounted on the chassis 1 by the connection mechanism and connected together by the protection mechanisms 5, where the connection mechanism specifically includes a connection screw 7 and a connection block 8, the connection screw 7 passes through the support plate 5.1 and the support rod 2, the connection block 8 is clamped at the edge of the support plate 5.1 and provided with a U-shaped hole for the connection screw 7 to pass through, and the connection block is sleeved at the outer end of the connection screw 7 by a fastener and is tightly attached to the connection block 8 so as to be fixed.

Referring to fig. 12, in the present embodiment, the welding mechanism 6 includes

A plurality of mounting plates 6.1 arranged at both ends of the inner side of the protection mechanism 5;

the first guide posts 6.3 are oppositely arranged between the mounting plates 6.1 at the two ends of the welding operation table 3;

a first drive shaft 6.4 (the drive shaft being a threaded shaft, for ease of illustration, a threaded portion not shown) arranged parallel to the first guide post 6.3 between the mounting plates 6.1;

the first driving device 6.2 (a driving motor can be adopted for automatic control) is arranged outside any mounting plate 6.1 and used for driving the first driving shaft 6.4 to rotate;

the first sliding table 6.5 is connected to the first guide post 6.3 and the first driving shaft 6.4 at two ends of the welding operation table 3 and moves along with the direction of the first guide post 6.3 according to the rotation of the first driving shaft 6.4;

the second guide post 6.7 is arranged on the side surface of the first sliding table 6.5 and is vertical to the first guide post 6.3;

the second driving shaft 6.8 is arranged on the side surface of the first sliding table 6.5 in parallel with the second guide post 6.7;

the second driving device 6.6 is arranged on the side surface of the first sliding table 6.5 and drives the second driving shaft 6.8 to rotate;

the second sliding table 6.9 is arranged at the outer ends of the second guide post 6.7 and the second driving shaft 6.8 and moves along with the direction of the second guide post 6.7 according to the rotation of the second driving shaft 6.8; and

the telescopic device 6.10 (an electronic push rod or an air cylinder capable of randomly adjusting the extension stroke can be adopted, so that the telescopic device can be controlled automatically, and can extend out of different lengths, and conveniently correspond to different welding points), is arranged on the outer side of the second sliding table 6.9 and keeps the extension direction upwards, and a welding placement block 6.11 for placing welding equipment is arranged at the end part of the telescopic device 6.10.

Example two

The embodiment is a method of using the welding apparatus of embodiment one, the method comprising

S1, providing the welding device in the first embodiment;

s2, mounting a seat framework to be welded on a clamping mechanism 4 of a welding operation table 3, and clamping each point of the seat framework through a clamping block which can be transversely or longitudinally adjusted in the clamping mechanism 4;

s3, determining the position of a welding point according to the fixed seat framework, and inputting the XYZ coordinates of the position of the welding point into a control system;

the position of the welding point can be determined by a preset scale value at the outer end of the welding operation table 3 and a preset scale value on the clamping mechanism;

s4, after the welding point positions are determined, rotating the welding operation table 3 to keep the seat framework corresponding to the welding mechanism 6 at the bottom;

s5, controlling the welding mechanism 6 to move in the XYZ axis direction according to the coordinate value of the welding point fed back by the control system, realizing the point welding of the seat framework, and simultaneously, in the welding process, a worker can install another seat framework at the other end of the welding operation table 3.

Wherein, the control system can adopt a PLC automatic control system.

The method can automatically weld the clamped seat framework, so that the welding quality can be ensured, manual operation can be omitted, and the use method is convenient for workers to perform field operation.

The foregoing description is directed to the preferred embodiments of the present application, but the embodiments are not intended to limit the scope of the application, and all equivalent changes or modifications made under the technical spirit of the present application should be construed to fall within the scope of the present application.

Claims (10)

1. A welding device for producing a seat with a deployable rest, characterized in that: comprising

The support rod is vertically arranged on the underframe;

the welding operation table is rotatably arranged on the supporting rod, and clamping mechanisms are arranged on two surfaces of the welding operation table;

the protection mechanism is arranged on the underframe at the outer side of the welding operation table; and

the welding mechanism is arranged at the lower end of the welding operation table and is fixed on the protection mechanism;

a plurality of clamping blocks capable of being transversely or longitudinally adjusted are arranged in the clamping mechanism, and the clamping blocks are used for fixing the framework of the seat;

the protective mechanism is arranged on the underframe in a lifting manner, and the welding operation table can be rotated conveniently by descending the protective mechanism;

the welding mechanism can move in three axes to realize the welding of each point position of the seat framework.

2. A welding device for producing a seat for a deployable rest as claimed in claim 1, wherein: the clamping mechanism comprises a base, and a plurality of sliding rods are transversely arranged on the base;

the sliding adjusting components are movably arranged on the sliding rod;

the installation block is installed on the sliding adjusting assembly, and a V-shaped placing groove for placing the seat framework is also formed in the installation block; and

and the clamp is arranged on the mounting block and clamps the seat framework.

3. A welding device for producing a seat for a deployable rest as claimed in claim 2, wherein: the sliding adjusting assembly comprises a first sliding block, and the first sliding block is slidably arranged on a sliding rod of the base and is fixed through a fastener;

the support block is arranged on the first sliding block, and a sliding groove is longitudinally formed in the side surface of the support block; and

the second sliding block is slidably arranged in the sliding groove of the supporting block and is provided with a mounting block.

4. A welding device for producing a seat for a deployable rest as claimed in claim 2, wherein: a limiting block is arranged on a sliding groove formed in the side face of the supporting block, and the second sliding block is limited through the limiting block.

5. A welding apparatus for producing a seat for a deployable rest as claimed in claim 3, wherein: the welding device comprises a support rod, a clamping block, a cylinder, a welding operation table, a locking screw and a locking screw, wherein the two support rods are symmetrically arranged at the middle positions of two ends of the bottom frame, the clamping block is arranged on the support rod through a rotating connecting piece, one end of the clamping block is the cylinder, a rectangular groove used for the welding operation table to penetrate through is formed in the other end of the clamping block, the side face of the welding operation table penetrates through the rectangular groove and penetrates through the cylinder to be inserted into the side face of the welding operation table, and the welding operation table is connected with the support rod in a rotating mode.

6. A welding device for producing a seat for a deployable rest as claimed in claim 5, wherein: the outer end of the clamping block is also fixed with a rotating handle, two end parts of the rotating handle are provided with fixing holes which are symmetrically arranged compared with the clamping block, and the supporting rod is provided with another locking screw rod which penetrates through the supporting rod and is connected with any fixing hole.

7. A welding device for producing a seat for a deployable rest as claimed in claim 1, wherein: the protection mechanism is two sets of altogether, and the subtend sets up the outer end at welding operation platform, and every protection mechanism of group includes backup pad and expansion plate, offer the holding hole in the backup pad, offered the holding tank in the inner wall and the bottom of holding hole, the expansion plate is arranged in this holding tank and is kept going up and down, still is provided with the elastic component in the bottom in the holding tank.

8. A welding device for producing a seat for a deployable rest as claimed in claim 6, wherein: the two groups of protection mechanisms are provided with connecting mechanisms, the protection mechanisms are vertically arranged on the underframe and connected together through the connecting mechanisms, the connecting mechanisms specifically comprise connecting screws and connecting blocks, the connecting screws penetrate through supporting plates and supporting rods, the connecting blocks are clamped at the edge parts of the supporting plates and provided with U-shaped holes used for the connecting screws to penetrate through, and the connecting blocks are sleeved at the outer ends of the connecting screws and can be tightly attached to the connecting blocks through fasteners.

9. A welding device for producing a seat for a deployable rest as claimed in claim 1, wherein: the welding mechanism comprises

The mounting plates are arranged at two ends of the inner side of the protection mechanism;

the first guide posts are oppositely arranged between the mounting plates at the two ends of the welding operation table;

the first driving shaft is arranged between the mounting plates in parallel with the first guide pillar;

the first driving device is arranged outside any mounting plate and used for driving the first driving shaft to rotate;

the first sliding table is connected to the first guide posts and the first driving shafts at the two ends of the welding operation table and moves along with the direction of the first guide posts according to the rotation of the first driving shafts;

the second guide post is arranged on the side surface of the first sliding table and is kept perpendicular to the first guide post;

the second driving shaft is arranged on the side surface of the first sliding table in parallel with the second guide post;

the second driving device is arranged on the side surface of the first sliding table and drives the second driving shaft to rotate;

the second sliding table is arranged at the outer ends of the second guide post and the second driving shaft and moves along with the direction of the second guide post according to the rotation of the second driving shaft; and

the telescopic device is arranged on the outer side of the second sliding table and keeps the telescopic direction upwards, and a welding placement block for placing welding equipment is arranged at the end part of the telescopic device.

10. A welding method for producing a seat with a deployable rest, characterized in that: the method comprises the following steps:

s1, providing a welding device for producing a seat for a deployable rest as claimed in any one of claims 1 to 8;

s2, mounting a seat framework to be welded on a clamping mechanism of a welding operation table, and clamping each point of the seat framework through a clamping block which can be transversely or longitudinally adjusted in the clamping mechanism;

s3, determining the position of a welding point according to the fixed seat framework, and inputting the XYZ coordinates of the position of the welding point into a control system;

s4, after the welding point positions are determined, rotating a welding operation table to keep the seat framework corresponding to the welding mechanism at the bottom;

s5, controlling the welding mechanism to move in the XYZ axis direction according to the coordinate value of the welding point fed back by the control system, realizing the point welding of the seat framework, and simultaneously, in the welding process, a worker can install another seat framework at the other end of the welding operation table.