CN219358488U - Adjustable net frame welding die carrier - Google Patents

Abstract

The application discloses adjustable screen frame welding die carrier, die carrier include mounting bracket and support fixed subassembly, and support fixed subassembly has a plurality ofly, and is suitable for along horizontal or longitudinal movably connection on the mounting bracket, and support fixed subassembly is used in pairs to be suitable for respectively fixing the both ends that are used for making the steel of outer support or inner support, and the relative position of location outer support and inner support. An object of the application is to provide an adjustable net frame welding die carrier convenient to operate, location efficient.

Description

Adjustable net frame welding die carrier

Technical Field

The application relates to the field of welding, in particular to an adjustable screen frame welding die carrier.

Background

At present, purse nets are common safety equipment, and are usually manufactured by welding net frames and net sheets, wherein the net frames are usually formed by splicing square tubes and welding, the net frames needing to be welded are generally formed into required shapes by lapping the square tubes (different net frame lengths and widths are formed according to different demands of customers, so that square tubes with different lengths are required to be used), in addition, each square tube is compressed by an adjustable square tube compressing assembly, and finally welding is performed.

However, the existing welding tool is inconvenient to operate, the relative positions of all square pipes are required to be positioned (namely, the positions of the square pipe pressing assemblies are adjusted and fixed) in each lap joint, and workpieces formed by multiple welding are large in error and inconvenient to operate; and work efficiency is low, when needing to customize different length and width screen frames according to customer's requirement, troublesome operation (need the position that the square pipe compresses tightly the subassembly again is fixed to the location of marking out), is the problem that the person skilled in the art needs to solve.

Disclosure of Invention

An object of the application is to provide an adjustable net frame welding die carrier convenient to operate, location efficient.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows:

an adjustable screen frame welding die carrier, the die carrier includes mounting bracket and support fixed subassembly, support fixed subassembly has a plurality ofly, and is suitable for along transversely or longitudinal movably connect on the mounting bracket, support fixed subassembly is used in pairs, and is suitable for the both ends of the steel piece that is used for making outer support or inner support respectively to fix the relative position of outer support with the inner support.

It should be noted that, the net frame is usually made of an outer bracket and an inner bracket, and in order to save cost and improve production efficiency, square tubes are usually used and cut into different lengths according to requirements, and finally welded to form the net frame. The bracket fixing components are used in pairs and respectively fix two ends of the square pipes, so that the positions of each square pipe (namely the positions of the outer bracket and the inner bracket) are fixed, and the subsequent welding is convenient. In actual production, the support fixing assembly can be an adjustable square pipe pressing assembly, which is of the prior art, as shown in fig. 10, the square pipe can be pressed as required, so that the positioning and clamping of the square pipe are realized, and the displacement of the square pipe in the welding process is prevented.

According to the condition of the existing market, the screen frames with different sizes are often required to be customized according to the needs of customers, so that a screen frame welding mould frame which can easily position all square pipes and form an inner support and an outer support in a splicing mode needs to be developed. In view of the fact that the existing net frames are basically rectangular in structure, the supporting frame fixing assemblies used in pairs can be adopted and can be movably connected on the installation frame in the transverse direction or the longitudinal direction, and therefore the distance between the supporting frame fixing assemblies is changed, and net frames with different sizes can be formed.

The movable support fixing components are arranged on the mounting frame in the transverse direction and the longitudinal direction, so that the relative distance between the support fixing components can be conveniently changed according to the requirements, the production requirements of the net frames with different lengths and widths can be met, the relative positions of the outer support and the inner support can be positioned, and the aim of improving the production efficiency can be fulfilled; set up the support fixed subassembly to using to make the both ends of square pipe are fixed respectively to the fixed subassembly of a pair of support, thereby accurate location square pipe's purpose, make the workman adjust the relative position of the fixed subassembly of support as required, thereby satisfy the needs of production and adjustment, and further promote production efficiency.

Further preferably, the top of the mounting frame defines a welding plane, the outer bracket and the inner bracket are suitable for being mounted on the welding plane, the bottom of the mounting frame is provided with a mounting seat, and the mounting seat is suitable for controlling the included angle between the welding plane and the horizontal plane to be alpha, so that 0 degree < alpha < 90 degrees is satisfied.

Further preferably, the mounting frame is provided with a transverse platform along a longitudinal direction, the transverse platform is provided with two groups and extends along a transverse direction, the transverse platform is provided with a bracket fixing assembly along the transverse direction, the bracket fixing assembly comprises a first fixing assembly and a second fixing assembly, the first fixing assembly and the second fixing assembly are used in pairs and are suitable for being respectively fixed at two ends of a steel piece used for manufacturing the outer bracket or the inner bracket, and the first fixing assembly and the second fixing assembly are respectively arranged on the two groups of transverse platforms.

Further preferably, the transverse platform comprises a fixed transverse platform and a walking transverse platform, the fixed transverse platform and the walking transverse platform are parallel to each other, the fixed transverse platform is fixedly installed at the bottom of the installation frame, and the first fixing component is movably arranged on the fixed transverse platform along the transverse direction; the walking transverse platform is longitudinally movably mounted on the mounting frame, and the second fixing component is transversely movably arranged on the walking transverse platform.

Further preferably, the support fixing assembly further comprises two tail end fixing assemblies, wherein the tail end fixing assemblies are fixedly arranged at the same end of the fixed transverse platform and the same end of the walking transverse platform extending along the transverse direction respectively, and the tail end fixing assemblies are suitable for fixing the tail ends of the outer supports; the first fixing component and the second fixing component comprise a head end fixing component, the head end fixing component is slidably installed at the other end of the fixed transverse platform and the other end of the walking transverse platform extending along the transverse direction, and the head end fixing component is suitable for fixing the head end of the outer support.

Further preferably, an adjusting assembly is installed at the bottom of the walking transverse platform, the adjusting assembly is installed in the middle of the installation frame, and the adjusting assembly is suitable for controlling the walking transverse platform to move longitudinally.

Further preferably, the adjusting assembly is of a ball screw structure, and the adjusting assembly further comprises an adjusting handle, wherein the adjusting handle is arranged outside the mounting frame and is arranged below the mounting frame, and the walking transverse platform is controlled to move longitudinally by driving the adjusting handle to rotate.

Still preferably, the left and right ends of the mounting frame are respectively provided with a first linear guide rail extending longitudinally, and the two ends of the walking transverse platform are respectively connected with the first linear guide rails in a longitudinally slidable manner.

Further preferably, a second linear guide rail extending along the transverse direction is arranged on the transverse platform, and the bracket fixing assembly is connected with the transverse platform in a sliding manner along the transverse direction through the second linear guide rail.

Further preferably, the bottom of the mounting seat is provided with a foot margin with adjustable height, and the height of the mounting frame from the ground is controlled.

Compared with the prior art, the beneficial effect of this application lies in:

(1) The movable support fixing components are arranged on the mounting frame in the transverse direction and the longitudinal direction, so that the relative distance between the support fixing components can be conveniently changed according to the requirements, the production requirements of the net frames with different lengths and widths can be met, the relative positions of the outer support and the inner support can be positioned, and the aim of improving the production efficiency can be fulfilled;

(2) Set up the support fixed subassembly to using to make the both ends of square pipe are fixed respectively to the fixed subassembly of a pair of support, thereby accurate location square pipe's purpose, make the workman adjust the relative position of the fixed subassembly of support as required, thereby satisfy the needs of production and adjustment, and further promote production efficiency.

Drawings

FIG. 1 is a schematic view of an outer frame and an inner frame constituting a frame;

FIG. 2 is an isometric view of one embodiment of a welding die carrier of the present application, showing a welding plane;

FIG. 3 is a front view of one embodiment of a welding die carrier of the present application, showing a walking traversing platform and a fixed traversing platform;

FIG. 4 is a schematic view of one embodiment of a welding die carrier of the present application, showing a first linear guide and a second linear guide;

FIG. 5 is a schematic view of one embodiment of a welding die carrier of the present application, showing an adjustment assembly and an adjustment handle;

FIG. 6 is an enlarged partial view of position A of one embodiment of a welding die carrier of the present application, illustrating an adjustment assembly;

FIG. 7 is an enlarged partial view of position B of an isometric view of one embodiment of a welding die carrier of the present application, showing an adjustment handle;

FIG. 8 is a schematic view of an embodiment of a welding die carrier of the present application, showing the frame mounted on a welding plane;

FIG. 9 is a flow chart of weld positioning according to one embodiment of the welding die carrier of the present application;

fig. 10 is a schematic view of a square tube compression assembly of the welding die carrier of the present application.

In the figure: 1. a mounting frame; 11. welding a plane; 12. a transverse platform; 121. fixing a transverse platform; 122. a walking transverse platform; 1221. an adjustment assembly; 1222. an adjustment handle; 123. a second linear guide rail; 13. a first linear guide rail; 2. a bracket fixing assembly; 21. a first fixing assembly; 22. a second fixing assembly; 23. a tail end fixing assembly; 24. a head end fixing assembly; 3. a mounting base; 100. an outer bracket; 101. an outer bracket at the tail end; 102. a transverse outer bracket; 103. a head end outer support; 200. an inner bracket; 300. square tube compresses tightly the subassembly.

Detailed Description

The present application will be further described with reference to the specific embodiments, and it should be noted that, on the premise of no conflict, new embodiments may be formed by any combination of the embodiments or technical features described below.

In the description of the present application, it should be noted that, for the azimuth terms such as terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the azimuth and positional relationships are based on the azimuth or positional relationships shown in the drawings, it is merely for convenience of describing the present application and simplifying the description, and it is not to be construed as limiting the specific protection scope of the present application that the device or element referred to must have a specific azimuth configuration and operation, as indicated or implied.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms "comprises" and "comprising," along with any variations thereof, in the description and claims of the present application are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements that are expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1, the frame is made of a plurality of square tubes, and defines an outer frame as an outer frame 100, and an inner square tube as an inner frame 200, the outer frame 100 including a tail end outer frame 101 and a head end outer frame 103 arranged in parallel, and a lateral outer frame 102 perpendicular to the tail end outer frame 101 and the head end outer frame 103. In this particular embodiment, the outer stent 100 is comprised of two transverse outer stents 102, a trailing outer stent 101 and a leading outer stent 103.

In the conventional welding method, the square tube is required to be compressed by using the square tube compressing assembly 300 and welded, but in the actual use process, the position of the square tube compressing assembly 300 is required to be positioned and the square tube compressing assembly 300 is required to be fixed, otherwise, deformation is generated in the welding process, and the problem of deformation, dislocation and the like of the welded and formed net frame may be caused due to the acting force generated in the welding process, so that the welding quality is reduced, and the existing mode of positioning and fixing the square tube compressing assembly 300 is low in efficiency, so that the efficient, stable and durable net frame welding die carrier is required to be developed.

The inventor has developed an adjustable frame welding jig, as shown in fig. 1 to 9, which includes a mounting frame 1 and a bracket fixing assembly 2, the bracket fixing assembly 2 having a plurality and adapted to be movably coupled to the mounting frame 1 in a lateral or longitudinal direction, the bracket fixing assembly 2 being used in pairs and adapted to fix both ends of a steel member used to make the outer bracket 100 or the inner bracket 200, respectively, and to position the relative positions of the outer bracket 100 and the inner bracket 200. In this particular embodiment, the steel members from which the outer and inner brackets 100, 200 are made are square tubes.

It should be noted that the frame is generally made of the outer frame 100 and the inner frame 200, and in order to save cost and improve production efficiency, square tubes are generally used and cut into different lengths according to need, and finally welded to form the frame. The bracket fixing assemblies 2 are used in pairs and fix both ends of the square pipes, respectively, thereby fixing the positions of the square pipes (i.e., the outer bracket 100 and the inner bracket 200), thereby facilitating the subsequent welding. In actual production, the bracket fixing assembly 2 may be an adjustable square tube pressing assembly 300, which is in the prior art, as shown in fig. 10, and may press a square tube as required, thereby realizing positioning and clamping of the square tube and preventing displacement of the square tube during welding. In conventional use, if the square tube pressing assembly 300 is not limited, the quality is affected by the problems of deformation of the welded mesh frame, etc., so the inventor opens a welding mold frame, and can conveniently control the positions between the bracket fixing assemblies 2.

According to the existing market situation, it is often required to customize the frames of different sizes according to the needs of customers, so it is required to develop a frame welding jig that easily positions the square tubes to splice the inner and outer brackets 200 and 100. Considering that the existing net frame is basically rectangular, the paired bracket fixing assemblies 2 can be adopted, and the bracket fixing assemblies 2 are movably connected on the mounting frame 1 along the transverse direction or the longitudinal direction, so that the distance between the bracket fixing assemblies 2 is changed, and the net frames with different sizes can be formed. In this particular embodiment, a pair of bracket fixing assemblies 2 can be used to weld a frame of a larger width when they are moved in opposite directions in the longitudinal direction; when the pair of bracket fixing components 2 move in the longitudinal direction in opposite directions, the pair of bracket fixing components can be used for welding and forming a net frame with larger width; and simultaneously, when the transverse distance of the bracket fixing assemblies 2 of each team is changed, the net frames with different lengths can be welded and formed.

The bracket fixing components 2 which are movable on the mounting frame 1 along the transverse direction and the longitudinal direction are adopted, so that the relative distance between the bracket fixing components 2 is conveniently changed according to the needs, the production needs of the net frames with different lengths and widths are met, the relative positions of the outer bracket 100 and the inner bracket 200 are positioned, and the aim of improving the production efficiency is fulfilled; set up the support fixed subassembly 2 to using to make the both ends of square pipe are fixed respectively to the support fixed subassembly 2 of pair, thereby accurate location square pipe's purpose, make the workman adjust the relative position of support fixed subassembly 2 as required, thereby satisfy the needs of production and adjustment, and further promote production efficiency. The square pipe is positioned to a certain extent relative to other positions of the square pipe, but the positioning method of clamping the two ends of the square pipe has the highest positioning efficiency and is also the simplest and simplest to operate.

It is further preferred that the top of the mounting frame 1 defines a welding plane 11, as shown in fig. 2, the outer bracket 100 and the inner bracket 200 are adapted to be mounted on the welding plane 11, the bottom of the mounting frame 1 is provided with a mounting seat 3, and the mounting seat 3 is adapted to control the angle between the welding plane 11 and the horizontal plane to be α, satisfying 0 ° < α < 90 °. In this particular embodiment, α=60° is controlled, which is most effective.

The welding plane 11 is arranged, the included angle between the welding plane 11 and the horizontal plane is alpha, the angle between the welding plane 11 and the horizontal plane is less than alpha and less than 90 degrees, the operation of workers is simple (the workers can keep static when no external force is disturbed transversely, the operation procedure is further reduced only by limiting longitudinal displacement), the welding procedure is relatively carried out on the ground during the welding procedure, the working pressure of the workers is smaller, and the working efficiency is higher.

It is further preferable that, as shown in fig. 2 and 3, the mounting frame 1 is provided with a transverse platform 12 movably in a longitudinal direction, the transverse platform 12 has two groups and extends in a transverse direction, and the transverse platform 12 is provided with a bracket fixing assembly 2 movably in a transverse direction, the bracket fixing assembly 2 includes a first fixing assembly 21 and a second fixing assembly 22, the first fixing assembly 21 and the second fixing assembly 22 are used in pairs and adapted to fix both ends of a steel member for forming the outer bracket 100 or the inner bracket 200, respectively, and the first fixing assembly 21 and the second fixing assembly 22 are provided on the two groups of the transverse platform 12, respectively.

The longitudinally movable transverse platforms 12 are arranged to facilitate the workers to control the longitudinal positions between the bracket fixing assemblies 2 more conveniently, and the longitudinal distances between the two transverse platforms 12 are controlled to weld the frames with different widths, so that the method is faster and the cost is saved compared with the method of sequentially adjusting each bracket fixing assembly 2.

Further preferably, as shown in fig. 3, the transverse platform 12 includes a fixed transverse platform 121 and a walking transverse platform 122, the fixed transverse platform 121 and the walking transverse platform 122 are parallel to each other, the fixed transverse platform 121 is fixedly installed at the bottom of the mounting frame 1, and the first fixing component 21 is movably arranged on the fixed transverse platform 121 along the transverse direction; the walking transversal platform 122 is movably mounted on the mounting frame 1 in the longitudinal direction, and the second fixing assembly 22 is movably disposed on the walking transversal platform 122 in the lateral direction.

The fixed transverse platform 121 in the transverse platform 12 is fixedly arranged at the bottom of the mounting frame 1, so that the distance between the two transverse platforms 12 can be adjusted more conveniently, even if the fixed transverse platform 121 is in a fixed state, the position of the walking transverse platform 122 in the longitudinal direction is adjusted, and therefore the distance between the first fixing component 21 and the second fixing component 22 in the longitudinal direction is changed, the requirements of the frames with different widths are met, and in addition, the first fixing component 21 and the second fixing component 22 can be moved in the transverse direction, so that the requirements of the frames with different lengths can be met.

Further preferably, as shown in fig. 3, the bracket fixing assembly 2 further includes two tail end fixing assemblies 23, and the tail end fixing assemblies 23 are fixedly installed at the same end of the fixed transverse platform 121 and the walking transverse platform 122 extending along the transverse direction respectively, and the tail end fixing assemblies 23 are suitable for fixing the tail end of the outer bracket 100 (i.e. the tail end outer bracket 101 in fig. 1); the first fixing assembly 21 and the second fixing assembly 22 each include a head end fixing assembly 24, the head end fixing assembly 24 being slidably mounted at the other end of the fixed transverse platform 121 and the walking transverse platform 122 extending in the transverse direction, and the head end fixing assembly 24 being adapted to fix the head end of the outer bracket 100 (i.e., the head end outer bracket 103).

The tail end fixing assembly 23 is arranged, so that the tail end outer support 101 can be positioned and has a limiting effect, in the actual operation process, the tail end outer support 101 is firstly installed, and then the position of the head end outer support 103 is adjusted, so that the head end outer support 103 can be clamped, and the working efficiency is further improved.

Further preferably, as shown in fig. 5 to 7, an adjusting component 1221 is mounted at the bottom of the walking horizontal platform 122, the adjusting component 1221 is mounted at the middle part of the mounting frame 1, and the adjusting component 1221 is suitable for controlling the walking horizontal platform 122 to move along the longitudinal direction.

The walking horizontal platform 122 is more conveniently controlled to move along the longitudinal direction by arranging the adjusting component 1221, so that the distance between the walking horizontal platform 122 and the fixed horizontal platform 121 is more conveniently adjusted. Installing the adjustment assembly 1221 at the bottom of the walking horizontal platform 122 can reduce the interference between the adjustment assembly 1221 and the mounting frame 1, and reduce the volume of the whole welding mold frame, and reduce the cost of manufacturing the mold frame.

Further preferably, as shown in fig. 6 and 7, the adjusting assembly 1221 is a ball screw structure, and the adjusting assembly 1221 further includes an adjusting handle 1222, wherein the adjusting handle 1222 is disposed outside and below the mounting frame 1, and the adjusting handle 1222 is driven to rotate and control the walking horizontal platform 122 to move in the longitudinal direction. It is easy to understand that in order to operate the ball screw structure, a guide rail must be fixedly provided, so that when the adjustment handle 1222 rotates, the adjustment handle 1222 is prevented from driving the threaded sleeve in the ball screw structure to rotate together, so that the balls cannot move, the threaded sleeve moves longitudinally on the guide rail, and when the adjustment handle 1222 is rotated, the adjustment handle 1222 drives the balls to rotate, so that the ball screw structure is operated, and the walking transverse platform 122 is driven to move longitudinally. The adjustment handle 1222 is provided outside the mounting frame 1 and below for convenience of operation, and a worker may directly shake the adjustment handle 1222 without adjusting his or her standing position to realize movement of the walking horizontal platform 122 in the longitudinal direction.

Further preferably, as shown in fig. 4, the left and right ends of the mounting frame 1 are provided with first linear guide rails 13 extending in the longitudinal direction, and both ends of the walking horizontal platform 122 are respectively connected with the first linear guide rails 13 in the longitudinal direction in a slidable manner.

Further preferably, as shown in fig. 4, the transverse platform 12 is provided with a second linear guide rail 123 extending in the transverse direction, and the bracket fixing assembly 2 is slidably connected to the transverse platform 12 in the transverse direction through the second linear guide rail 123.

The first linear guide 13 and the second linear guide 123 can reduce the friction force of the mutual motion between the walking transverse platform 122 and the mounting frame 1, and can also reduce the friction force between the bracket fixing assembly 2 and the transverse platform 12.

Further preferably, as shown in fig. 2, the bottom of the mounting base 3 is provided with a foot margin with adjustable height, and controls the height of the mounting frame 1 from the ground.

The height of the welding die frame can be conveniently adjusted according to the field height by arranging the feet with adjustable heights, so that the ground clearance of the welding plane 11 is adjusted, and the universality of the welding die frame is improved.

In actual use, as shown in fig. 8 and 9, the following steps are performed:

s100, controlling the walking transverse platform 122 to be in a proper position through the adjusting component 1221 according to the width of the net frame; in this particular embodiment, even though the distance between walking traversing platform 122 and fixed traversing platform 121 is equal to the width of the frame; due to the adoption of the ball screw structure, the self-locking device has a certain self-locking effect, and although the welding plane 11 and the horizontal plane keep a certain included angle alpha, the hand wheel cannot naturally slide downwards after being loosened, and other locking devices can be used for preventing the hand wheel from rotating;

s200, fixing the tail end outer support 101 by using the tail end fixing assembly 23;

s300, then fixedly mounting an upper transverse outer support 102 and a lower transverse outer support 102 which are parallel to each other on the tail outer support 101;

s400, determining the distance between the head end fixing assembly 24 and the tail end fixing assembly 23 according to the length of the net frame, so as to fix the head end outer support 103;

s500. finally, the positions of the first fixing member 21 and the second fixing member 22 used in pairs are adjusted in the lateral direction, thereby fixing the respective longitudinally extending inner brackets 200.

The foregoing has outlined the basic principles, main features and advantages of the present application. It will be appreciated by persons skilled in the art that the present application is not limited to the embodiments described above, and that the embodiments and descriptions described herein are merely illustrative of the principles of the present application, and that various changes and modifications may be made therein without departing from the spirit and scope of the application, which is defined by the appended claims. The scope of protection of the present application is defined by the appended claims and equivalents thereof.

Claims (10)

1. An adjustable net frame welding mould frame which is characterized in that: the die carrier comprises a plurality of mounting frames and support fixing assemblies, wherein the support fixing assemblies are suitable for being movably connected to the mounting frames along the transverse direction or the longitudinal direction, the support fixing assemblies are used in pairs and are suitable for respectively fixing two ends of a steel piece used for manufacturing an outer support or an inner support, and the relative positions of the outer support and the inner support are positioned.

2. An adjustable frame welding die set as defined in claim 1, wherein: the top of mounting bracket defines a welding plane, the outer support with the inner support is suitable for to be installed on the welding plane, the bottom of mounting bracket is provided with the mount pad, the mount pad is suitable for control the contained angle of welding plane and horizontal plane is alpha, satisfies 0 ° < alpha < 90 °.

3. An adjustable frame welding die set as defined in claim 2, wherein: the mounting rack is provided with a transverse platform along the longitudinal and movable mode, the transverse platform is provided with two groups and extends transversely, the transverse platform is provided with a support fixing assembly along the transverse and movable mode, the support fixing assembly comprises a first fixing assembly and a second fixing assembly, the first fixing assembly and the second fixing assembly are used in pairs and are suitable for being respectively fixed at two ends of a steel piece used for manufacturing the outer support or the inner support, and the first fixing assembly and the second fixing assembly are fixedly arranged on the two groups of transverse platforms.

4. An adjustable frame welding die set as defined in claim 3, wherein: the transverse platform comprises a fixed transverse platform and a walking transverse platform, the fixed transverse platform and the walking transverse platform are parallel to each other, the fixed transverse platform is fixedly arranged at the bottom of the mounting frame, and the first fixing component is movably arranged on the fixed transverse platform along the transverse direction; the walking transverse platform is longitudinally movably mounted on the mounting frame, and the second fixing component is transversely movably arranged on the walking transverse platform.

5. An adjustable frame welding die set as defined in claim 4, wherein: the support fixing assembly further comprises two tail end fixing assemblies which are fixedly arranged at the same end of the fixed transverse platform and the same end of the walking transverse platform extending along the transverse direction respectively, and the tail end fixing assemblies are suitable for fixing the tail ends of the outer supports; the first fixing component and the second fixing component comprise a head end fixing component, the head end fixing component is slidably installed at the other end of the fixed transverse platform and the other end of the walking transverse platform extending along the transverse direction, and the head end fixing component is suitable for fixing the head end of the outer support.

6. An adjustable frame welding die set as defined in claim 5, wherein: the walking transverse platform is characterized in that an adjusting assembly is arranged at the bottom of the walking transverse platform, the adjusting assembly is arranged in the middle of the mounting frame, and the adjusting assembly is suitable for controlling the walking transverse platform to move longitudinally.

7. An adjustable frame welding die set as defined in claim 6, wherein: the adjusting assembly is of a ball screw structure, and further comprises an adjusting handle, wherein the adjusting handle is arranged outside the mounting frame and is arranged downwards, and the walking transverse platform is controlled to move longitudinally through driving the adjusting handle to rotate.

8. An adjustable frame welding die set as defined in claim 7, wherein: the left end and the right end of the mounting frame are respectively provided with a first linear guide rail extending longitudinally, and the two ends of the walking transverse platform are respectively connected with the first linear guide rails in a longitudinally slidable manner.

9. An adjustable frame welding die set as defined in claim 3, wherein: the transverse platform is provided with a second linear guide rail extending transversely, and the bracket fixing assembly is connected with the transverse platform in a sliding manner transversely through the second linear guide rail.

10. An adjustable frame welding die set as defined in claim 2, wherein: the bottom of mount pad is provided with but high lower margin, and control the off-ground height of mounting bracket.