Adjustable cabinet frame welding fixture

Abstract

The present invention relates to the field of welding positioning fixtures, and in particular to a fixture for welding adjustable cabinet frames of various sizes suitable for Rittal cabinets, comprising a bottom main frame of the fixture, a left cabinet width adjustment column, a right cabinet width adjustment column, a left bottom cabinet width adjustment fixed module, a right bottom cabinet width adjustment fixed module, a left top cabinet width adjustment fixed assembly, and a right top cabinet width adjustment fixed assembly. The right cabinet width adjustment column and the right bottom cabinet width adjustment fixed module are fixedly installed on the right side above the bottom main frame of the fixture as a fixed reference position. The fixture of the present invention can correct the dimensional error and form and position error of the cabinet frame to meet the dimensional requirements of the cabinet frame, ensure the consistency of the weld position each time, and ensure the repeatability accuracy requirements of the workpiece in the next process.

Description

Technical Field

[0001] The invention relates to the field of welding positioning fixtures, in particular to a fixture for welding Rittal cabinet frames which can be adjusted to suit various sizes. Background Art

[0002] The cabinet is an independent or self-supporting casing used to accommodate electrical or electronic equipment. It is an indispensable component of electrical equipment and a carrier of electrical control equipment. The cabinet frame is the main load-bearing structure of the cabinet. The cabinet frame is assembled and welded by connecting profiles with tees. The existing production model is to manually assemble the cabinet frame profiles with the tees according to the required specifications and assembly sequence, and then manually weld them. The size of the cabinet frame is generally large, and the inner and outer sides of the eight corners need to be welded and fixed. The welding process requires the cabinet frame to be shifted and flipped many times. The length of the weld seam of a single weld point is short, but there are many welding points, and the welding workload is large. The cabinet frame accuracy is affected by the accuracy of the components and the accuracy of the early assembly. The entire manual welding time is long. The assembly parts of the cabinet frame are prone to deformation during welding, which requires multiple corrections and adjustments to the frame during the welding process, thereby extending the welding time. In addition, the aesthetics of the manual welding weld is affected by human influence and the consistency is poor. The above factors will directly affect the welding quality of the overall cabinet frame. In order to reduce the intensity of manual labor and improve the welding quality of cabinet frames, it is urgent to design special welding tooling to cooperate with welding robots to perform mechanical automated welding. Summary of the Invention

[0003] The purpose of the present invention is to provide an adjustable cabinet frame welding fixture, which has a scientific overall structural design, can correct the cabinet frame dimensional accuracy, has a high repeat positioning accuracy of the welding position, and has a high dimensional accuracy after the overall correction of the cabinet frame. At the same time, the cabinet frame can be clamped as a whole. The fixture clamps the cabinet frame and drives the cabinet frame to rotate and change its position at a certain angle to complete the welding position of the entire cabinet frame in one go. A set of fixtures can be conveniently adjusted according to the length, width and height dimensions of the cabinet frame, meeting the needs of small-batch production of multiple varieties.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The left cabinet width adjustment column and the right cabinet width adjustment fixed module are fixedly installed on the right side of the upper right corner of the main frame of the tooling, and the left cabinet width adjustment column and the right cabinet width adjustment fixed module are fixedly installed on the right side of the upper right corner of the main frame of the tooling as a fixed reference position. The left cabinet width adjustment column is installed on the left bottom cabinet width adjustment fixed module. Linear guide rails are installed on both sides of the left side of the main frame of the tooling bottom, and slidable guide rail sliders are assembled on the linear guide rails. The left bottom cabinet width adjustment fixed module is fixedly installed on the linear guide rail slider. The left cabinet width adjustment column and the left bottom cabinet width adjustment fixed module can be moved along the linear guide rails on both sides of the left side of the main frame of the tooling bottom through the linear guide rail slider. The left top cabinet width adjustment fixed module is installed on the inner side of the left cabinet width adjustment column, and the right top cabinet width adjustment fixed component is installed on the inner side of the right cabinet width adjustment column.

[0006] Furthermore, a cabinet height slider connector is provided between the cabinet width adjustment fixed module at the bottom left and the linear guide rail sliders on both sides of the left side of the main frame at the bottom of the tooling. A dividing pin for positioning is installed on the cabinet height slider connector, and the dividing pin knob is on the cabinet height slider connector.

[0007] Furthermore, cabinet height indexing pin fixing positioning members are provided below the linear guide rails on both sides of the left side of the main frame, and fixing holes adapted to indexing pin positioning are reserved on the cabinet height indexing pin fixing positioning members according to the adjustable size gears.

[0008] Furthermore, a left-side loading and unloading guide plate assembly for guiding the left side of the cabinet frame is installed on the left cabinet width adjustment column, and a right-side loading and unloading guide plate assembly for guiding the right side of the cabinet frame is installed on the right cabinet width adjustment column. The structures of the left-side loading and unloading guide plate assembly and the right-side loading and unloading guide plate assembly are the same.

[0009] The left top cabinet width adjustment and fixing assembly and the right top cabinet width adjustment and fixing assembly have the same structure, and both include a column cabinet width module, a supporting frame, a cabinet width fixing fixture assembly, an upper cabinet height positioning cylinder and an upper pressing cylinder. The supporting frame is installed on the column cabinet width module and can be raised and lowered under the adjustment action of the column cabinet width module. Linear slide rails are installed on both sides of the upper part of the supporting frame, and a slider is engaged on the linear slide rails. A slide plate is installed on the slider, and the cabinet width fixing fixture assembly and the upper pressing cylinder are fixedly installed on the slide plate. The upper cabinet height positioning cylinder is installed at the middle position of the supporting frame. The upper cabinet height positioning cylinder can position and correct the left and right positions of the top of the cabinet height direction.

[0010] Furthermore, a downward pressing cylinder is provided on the inner side of the cabinet width fixing fixture assembly, and the downward pressing cylinder rotates and presses the profile downward to fix the profile.

[0011] Furthermore, a cabinet depth indexing pin fixing and positioning member is installed at the rear of the slide. The cabinet depth indexing pin fixing and positioning member knob is on the rear of the slide and positions the sliding position of the slide.

[0012] The left bottom cabinet width adjustment and fixing module and the right bottom cabinet width adjustment and fixing module have the same structure. They both include front and rear adjustment parts and bottom fixing clamp parts. Two groups of bottom fixing clamp parts for lifting the cabinet frame off the loading and unloading workbench are installed on the upper part of the front and rear adjustment parts. The front and rear adjustment parts can adjust the position of the bottom fixing clamp parts. A downward pressing cylinder is also provided on the inner side of the bottom fixing clamp part. The downward pressing cylinder can rotate and press the profile downward to fix the profile.

[0013] The beneficial effects of the present invention are as follows: the overall structural design of the adjustable cabinet frame welding fixture of the present invention is scientific, and compared with the existing manual operation method, it has the following technical characteristics and advantages:

[0014] 1. The cabinet frames assembled and spliced ​​externally can be quickly and conveniently loaded and unloaded on the fixture of the present invention, and the welding fixture can clamp and fix multiple points at different positions on the assembled cabinet frames;

[0015] 2. The fixture of the present invention can correct the dimensional error and form and position error of the cabinet frame to meet the dimensional requirements of the cabinet frame, ensure the consistency of the weld position each time, and ensure the repeatability accuracy requirements of the workpiece in the next process. The cabinet frame is fixed and connected to the welding fixture through the fixture clamping. During the welding process, the positioner can drive the fixture together with the cabinet frame to rotate and change the cabinet frame posture. All the required welding positions on the cabinet frame can be completed at one time when the cabinet frame is clamped once;

[0016] 3. The fixture welding fixture of the present invention can be quickly and conveniently adjusted and transformed according to the different width, height and depth dimensions of the cabinet frame, thereby meeting the welding requirements of cabinet frames of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall main structure of the fixture for cabinet frame welding of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall top view of the fixture for cabinet frame welding of the present invention;

[0019] Figure 3 This is a schematic diagram of the overall axial structure of the fixture for cabinet frame welding of the present invention;

[0020] Figure 4 It is a structural diagram of the right top cabinet width adjustment fixing assembly in the present invention;

[0021] Figure 5 This is a schematic diagram of the installation of the left cabinet width adjustment column and the left top cabinet width adjustment fixing assembly in the present invention;

[0022] Figure 6 This is a schematic diagram of the overall structure of the tooling after size change of the present invention;

[0023] The numbers in the figure are: 1. The main frame of the bottom of the tooling; 2. The left cabinet width adjustment column; 3. The right cabinet width adjustment column; 4. The left bottom cabinet width adjustment fixed module; 5. The right bottom cabinet width adjustment fixed module; 6. The left top cabinet width adjustment fixed assembly; 7. The right top cabinet width adjustment fixed assembly; 8. The left loading and unloading guide plate assembly; 9. The right loading and unloading guide plate assembly; 10. The loading and unloading workbench; 11. The bottom fixing fixture assembly; 12. The lower cabinet height positioning cylinder; 13. The cabinet width fixing fixture assembly; 14. The upper cabinet height positioning cylinder; 15. The upper clamping cylinder; 16. The cabinet height slider connector; 17. The cabinet height indexing pin fixing positioning part; 18. The column cabinet width module; 19. The cabinet depth indexing pin fixing positioning part. DETAILED DESCRIPTION

[0024] To help those skilled in the art better understand the technical solutions of the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly or indirectly connected to the other element. When an element is referred to as being "connected to" another element, it may be directly or indirectly connected to the other element. The terms "left" and "right" used in this application document to indicate directions are based on the specific structures shown in the drawings and do not constitute structural limitations.

[0025] Specific embodiment 1: As shown in the attached specification Figure 1 , Instruction Manual Figure 2 And the instruction manual Figure 3As shown, the present invention provides an adjustable cabinet frame welding fixture, which mainly includes a bottom main frame 1 of the tooling, a left cabinet width adjustment column 2, a right cabinet width adjustment column 3, a left bottom cabinet width adjustment fixed module 4, a right bottom cabinet width adjustment fixed module 5, a left top cabinet width adjustment fixed component 6, and a right top cabinet width adjustment fixed component 7. The right cabinet width adjustment column 3 and the right bottom cabinet width adjustment fixed module are fixedly installed at the right position above the bottom main frame 1 of the tooling as a fixed reference position. The left cabinet width adjustment column 2 is installed on the left bottom cabinet width adjustment fixed module 4. Linear guide rails are installed on both sides of the left side of the bottom main frame 1 of the tooling, and slidable guide rail sliders are assembled on the linear guide rails. The left bottom cabinet width adjustment fixed module 4 is fixedly installed on the linear guide rail slider. When in use, the left cabinet width adjustment column 2 and the left bottom cabinet width adjustment fixed module 4 can be moved as a whole along the linear guide rails on both sides of the left side of the bottom main frame 1 of the tooling through the linear guide rail slider. The fixed component 6 is installed on the inner side of the left cabinet width adjustment column 2, and the right top cabinet width adjustment fixing component 7 is installed on the inner side of the right cabinet width adjustment column 3. In order to facilitate the positioning of the left bottom cabinet width adjustment fixing module 4, a cabinet height slider connector 16 is provided between the left bottom cabinet width adjustment fixing module 4 and the linear guide sliders on both sides of the left side of the bottom main frame 1 of the tooling. The knob on the cabinet height slider connector 16 has an indexing pin for positioning. At the same time, a cabinet height indexing pin fixing positioning component 17 is provided under the linear guide rails on both sides of the left side of the main frame. The cabinet height indexing pin fixing positioning component 17 is reserved with fixing holes for matching the indexing pin positioning according to the adjustable size gear.

[0026] The left top cabinet width adjustment fixing assembly 6 and the right top cabinet width adjustment fixing assembly 7 for positioning, clamping and correcting the cabinet frame top have the same structure. The two include a column cabinet width module 18, a bearing frame, a cabinet width fixing fixture assembly 13, an upper cabinet height positioning cylinder 14 and an upper pressing cylinder 15. The bearing frame is used to install and support the cabinet width fixing fixture assembly 13, the upper cabinet height positioning cylinder 14 and the upper pressing cylinder 15. The bearing frame is installed on the column cabinet width module 18 and can be raised and lowered under the adjustment of the column cabinet width module 18 (the column cabinet width Module 18 utilizes a screw-nut transmission system structure. Linear guide rails are mounted on both sides of the upper portion of the support frame. Sliders are engaged with the linear guide rails, and a slide plate is mounted on the slide plate. The cabinet width fixing fixture 13 and the upper clamping cylinder 15 are fixedly mounted on the slide plate. An upper cabinet height positioning cylinder 14 is mounted in the middle of the support frame. The upper cabinet height positioning cylinder 14 can position and correct the left and right positions of the top of the cabinet height. A downward clamping cylinder is also provided inside the cabinet width fixing fixture 13. The downward clamping cylinder rotates and presses the profile downward to secure it. A cabinet depth indexing pin fixing locator 19 is mounted on the rear of the slide plate. The knob of the cabinet depth indexing pin fixing locator 19 is located on the rear of the slide plate and positions the slide plate's sliding position.

[0027] The left bottom cabinet width adjustment fixing module 4 and the right bottom cabinet width adjustment fixing module 5 for positioning, clamping and correcting the bottom of the cabinet frame have the same structure. They both include front and rear adjustment parts and a bottom fixing clamp part 11. Two groups of bottom fixing clamp parts 11 for lifting the cabinet frame off the loading and unloading workbench 10 are installed on the inner side of the front and rear adjustment parts. The two groups of bottom fixing clamp parts 11 can clamp and position the bottom of the cabinet frame. At the same time, the front and rear adjustment parts can adjust the position of the bottom fixing clamp part 11. A downward pressing cylinder is also provided on the inner side of the bottom fixing clamp part 11. The downward pressing cylinder can rotate and press the profile downward to fix the profile.

[0028] The adjustment operation process of the adjustable cabinet frame welding fixture of the present invention during specific operation is as follows: First, the operator can assemble the cabinet frame profile with the tee parts according to the required specifications and assembly sequence to form the cabinet frame as a whole. The loading and unloading workbench 10 of the welding fixture is connected and fixed above the main frame 1 at the bottom of the fixture. Push-pull slides are provided on both sides of the loading and unloading workbench 10 for easy loading and unloading. The operator can first pull out the push-pull slides fixed on both sides of the loading and unloading workbench 10, and place the assembled cabinet frame as a whole on the pulled-out push-pull slides. The front end of the push-pull slide and the side of the right loading and unloading guide plate assembly 9 are separated A positioning mechanism is provided to roughly position the cabinet frame placed on the push-pull slide. A manual quick downward pressing mechanism is also provided above the positioning mechanism installed at the front end of the push-pull slide to fix the cabinet frame placed on it to the push-pull slide. Before pushing the cabinet frame in, first extend the left loading and unloading guide plate assembly 8 and the right loading and unloading guide plate assembly 9 to guide the cabinet frame in the cabinet height direction when the cabinet frame is pushed into the welding fixture. Manually push the push-pull slide to push the cabinet frame into the interior of the fixture fixture of the present invention along the slide direction. After the cabinet frame is pushed in, manually operate the knob switch to clamp and correct the cabinet frame step by step in sequence. The specific clamping steps are as follows:

[0029] First, the bottom fixing fixtures 11 fixed on the inner sides of the left bottom cabinet width adjustment fixing module 4 and the right bottom cabinet width adjustment fixing module 5 are raised to lift the cabinet frame off the loading and unloading workbench 10. A downward pressing cylinder is also provided on the inner side of the bottom fixing fixture 11. The downward pressing cylinder rotates and presses down the lower profile of the cabinet frame to fix it;

[0030] Second, a lower cabinet height positioning cylinder 12 is provided at the bottom of the left cabinet width adjustment column 2 and the right cabinet width adjustment column 3 for positioning the bottom cabinet height direction. The lower cabinet height positioning cylinders 12 on both sides extend in sequence to position and correct the left and right positions of the bottom cabinet height direction;

[0031] 3. The cabinet width fixing fixtures 13 fixed on the left and right (front and back) sides of the left top cabinet width adjustment fixing assembly 6 and the right top cabinet width adjustment fixing assembly 7 extend to clamp and correct the profiles of the four sides of the cabinet width. A downward pressing cylinder is also provided inside the cabinet width fixing fixture 13. The downward pressing cylinder rotates and presses down the upper profile of the cabinet frame to fix it;

[0032] Fourth, an upper cabinet height positioning cylinder 14 for positioning the top cabinet height direction is installed above the middle of the left top cabinet width adjustment fixing component 6 and the right top cabinet width adjustment fixing component 7. The upper cabinet height positioning cylinders 14 on both sides (on the left top cabinet width adjustment fixing component 6 and the right top cabinet width adjustment fixing component 7) are extended in sequence to position and correct the left and right positions of the top of the cabinet height direction, ensure the verticality of the cabinet frame in the cabinet width direction relative to the cabinet height direction, and correct the cabinet frame diagonal error;

[0033] 5. The left top cabinet width adjustment and fixing assembly 6 and the right top cabinet width adjustment and fixing assembly 7 are provided with an upper pressing cylinder 15 for pressing the cabinet frame profile downward. The upper pressing cylinder 15 presses and fixes the cabinet frame downward from the top to complete the entire clamping and fixing action. After the welding is completed, the loosening action of the fixture of the present invention is opposite to the clamping action. The manual operation knob switch sequence is used to loosen the fixture on the cabinet frame in steps. When the bottom fixing fixture is closed in the last step, the clamp is closed. After 11 falls, the cabinet frame will fall together with the bottom fixing fixture assembly 11. When it contacts the loading and unloading workbench 10, the bottom fixing fixture assembly 11 continues to fall. The loading and unloading workbench 10 will fully support the cabinet frame. The cabinet frame is completely placed on the loading and unloading workbench 10. The manual quick downward pressing mechanism installed above the positioning mechanism on the front end of the push-pull slides on both sides of the loading and unloading workbench 10 of the welding tool is tightened to fix the cabinet frame on the push-pull slides. The slides and the cabinet frame are manually pulled out of the welding tool to complete the entire action.

[0034] It should be noted that the present invention can be quickly and conveniently adjusted and transformed according to the different width, height and depth dimensions of the cabinet frame to meet the welding requirements of cabinet frames of different sizes. According to the size characteristics of the cabinet frame, the adjustment range of the tooling is adjusted according to the gear position. The gear positions that can be adjusted in the cabinet height direction are: 1800 / 2000 / 2200; the gear positions that can be adjusted in the cabinet width direction are: 600 / 800 / 1000 / 1200; the gear positions that can be adjusted in the cabinet depth direction are: 500 / 600 / 800. The specific adjustment steps are as follows:

[0035] 1. Cabinet height dimension transformation and adjustment: First, the right cabinet width adjustment column 33 and the right bottom cabinet width adjustment fixed module 5 are fixed to the right position above the bottom main frame 1 of the tooling as a fixed reference position, and the left cabinet width adjustment column 2 is fixed to the bottom plate of the left bottom cabinet width adjustment fixed module 4, so that the two are connected as a whole and can move together; linear guide rails are installed on both sides of the left side of the bottom main frame 1 of the tooling, and the left bottom cabinet width adjustment fixed module 4 is fixed on the linear guide rail sliders on both sides of the left side of the bottom main frame 1 of the tooling, and the cabinet height slider connector between the left bottom cabinet width adjustment fixed module 4 and the linear guide rail sliders on both sides of the left side of the bottom main frame 1 of the tooling The knob on 16 has an indexing pin for positioning, and a cabinet height indexing pin fixing locating piece 17 is provided under the linear guide rails on both sides of the left side of the main frame. The cabinet height indexing pin fixing locating piece 17 has a fixing hole for fixing the positioning indexing pin reserved according to the adjustable size gear. The left cabinet width adjustment column 2 and the left bottom cabinet width adjustment fixing module 4 can move along the linear guide rails on both sides of the left side of the main frame 1 at the bottom of the tooling. The left bottom cabinet width adjustment fixing module 4 is manually moved left and right. When the indexing pin installed on the cabinet height slider connector 16 can be inserted into the adjustable size gear positioning pin fixing hole reserved in the cabinet height indexing pin fixing locating piece 17, the height direction size change of the welding fixture cabinet can be completed.

[0036] 2. Cabinet width dimension transformation and adjustment: The left cabinet width adjustment column 2 and the left cabinet width adjustment column 2 are both fixed with a column cabinet width module 18. The left top cabinet width adjustment fixing component 6 and the right top cabinet width adjustment fixing component 7 are respectively installed on the movable slide plate on the column cabinet width module 18. A positioning ruler is pasted on the surface of the column cabinet width module 18 to locate the moving position of the left top cabinet width adjustment fixing component 6 and the right top cabinet width adjustment fixing component 7. Manually operate the screw rod on the column cabinet width module 18 to drive the slide plate on the module together with the left top cabinet width adjustment fixing component 6 and the right top cabinet width adjustment fixing component 7 to move up and down, thereby completing the cabinet width dimension transformation of the welding fixture;

[0037] 3. Cabinet depth dimension transformation and adjustment: The left bottom cabinet width adjustment fixed module 4 and the right bottom cabinet width adjustment fixed module are fixed on the main frame. The left bottom cabinet width adjustment fixed module 4 and the right bottom cabinet width adjustment fixed module are manual forward and reverse wire bidirectional modules. Each module has two slides that can be separated and combined at the same time. A bottom fixing fixture assembly 11 is fixed above each slide. A ruler for positioning is pasted on the surface of the left bottom cabinet width adjustment fixed module 4 and the right bottom cabinet width adjustment fixed module to locate the moving position. The manual operation of the screw rod on the left bottom cabinet width adjustment fixed module 4 and the right bottom cabinet width adjustment fixed module drives the slide on the module together with the bottom fixing fixture assembly 11 to separate and move, thereby completing the transformation of the bottom cabinet depth dimension of the welding fixture. At the same time, the cabinet width fixing fixture assembly 13 is installed together with the upper clamping cylinder 15 On the slide, the two are connected as a whole and can move together. Linear guide sliders are installed on the upper part of the left top cabinet width adjustment fixing component 6 and the right top cabinet width adjustment fixing component 7. The slide is installed on the linear guide slider, and an indexing pin for positioning is installed on the slide. The left top cabinet width adjustment fixing component 6 and the right top cabinet width adjustment fixing component 7 are equipped with a cabinet depth indexing pin fixing positioning part 19 at the rear. The cabinet depth indexing pin fixing positioning part 19 has fixed positioning pin fixing holes reserved according to the adjustable size gear. The slide can move forward and backward along the direction of the linear guide, and the slide can be moved left and right manually. When the indexing pin installed on the slide can be inserted into the adjustable size gear positioning pin fixing hole reserved in the cabinet depth indexing pin fixing positioning part 19, the transformation of the top cabinet depth direction size of the welding fixture is completed. By transforming the bottom and top cabinet depth direction sizes, the transformation of the overall welding fixture cabinet depth direction can be completed.

[0038] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. An adjustable cabinet frame welding fixture, characterized in that: The utility model comprises a bottom main frame (1), a left cabinet width adjustment column (2), a right cabinet width adjustment column (3), a left bottom cabinet width adjustment fixed module (4), a right bottom cabinet width adjustment fixed module (5), a left top cabinet width adjustment fixed component (6), and a right top cabinet width adjustment fixed component (7), wherein the right cabinet width adjustment column (3) and the right bottom cabinet width adjustment fixed module (5) are fixedly installed at the right position above the bottom main frame (1) of the utility model as a fixed reference position, and the left cabinet width adjustment column (2) is installed on the left bottom cabinet width adjustment fixed module (4). Linear guide rails are installed on both sides of the left side of the bottom main frame (1), and slidable guide rail sliders are installed on the linear guide rails. The left bottom cabinet width adjustment fixed module (4) is fixedly installed on the linear guide rail slider. The left cabinet width adjustment column (2) and the left bottom cabinet width adjustment fixed module (4) can be moved along the linear guide rails on both sides of the left side of the bottom main frame (1) of the tooling through the linear guide rail slider. The left top cabinet width adjustment fixed component (6) is installed on the inner side of the left cabinet width adjustment column (2), and the right top cabinet width adjustment fixed component (7) is installed on the inner side of the right cabinet width adjustment column (3); The left top cabinet width adjustment fixing assembly (6) and the right top cabinet width adjustment fixing assembly (7) have the same structure, and both include a column cabinet width module (18), a support frame, a cabinet width fixing fixture assembly (13), an upper cabinet height positioning cylinder (14) and an upper pressing cylinder (15). The support frame is installed on the column cabinet width module (18) and can be raised and lowered under the adjustment action of the column cabinet width module (18). Linear slide rails are installed on both sides of the upper part of the support frame, a slider is clamped on the linear slide rail, and a slide plate is installed on the slider. The cabinet width fixing fixture assembly (13) and the upper pressing cylinder (15) are fixedly installed on the slide plate. An upper cabinet height positioning cylinder (14) is installed at the middle position of the support frame. The upper cabinet height positioning cylinder (14) can position and correct the left and right positions of the top of the cabinet height direction. A cabinet depth indexing pin fixing locator (19) is mounted on the rear portion of the slide, and a knob of the cabinet depth indexing pin fixing locator (19) is located on the rear portion of the slide and positions the sliding position of the slide.

2. The adjustable cabinet frame welding fixture according to claim 1, characterized in that: A cabinet height slider connector (16) is provided between the left bottom cabinet width adjustment fixed module (4) and the linear guide sliders on both sides of the left side of the tool bottom main frame (1), and an indexing pin for positioning is installed on the cabinet height slider connector (16), and the indexing pin knob is on the cabinet height slider connector (16).

3. The adjustable cabinet frame welding fixture according to claim 2, characterized in that: A cabinet height indexing pin fixing locator (17) is provided below the linear guide rails on both sides of the left side of the main frame, and a fixing hole adapted for indexing pin positioning is reserved on the cabinet height indexing pin fixing locator (17) according to the adjustable size gear.

4. The adjustable cabinet frame welding fixture according to claim 1, characterized in that: A left loading and unloading guide plate assembly (8) for guiding the left side of the cabinet frame is installed on the left cabinet width adjustment column (2), and a right loading and unloading guide plate assembly (9) for guiding the right side of the cabinet frame is installed on the right cabinet width adjustment column (3). The left loading and unloading guide plate assembly (8) and the right loading and unloading guide plate assembly (9) have the same structure.

5. The adjustable cabinet frame welding fixture according to claim 1, characterized in that: A downward pressing cylinder is also provided on the inner side of the cabinet width fixing fixture assembly (13), and the downward pressing cylinder rotates and presses the profile downward to fix the profile.

6. The adjustable cabinet frame welding fixture according to claim 1, characterized in that: The left bottom cabinet width adjustment fixing module (4) and the right bottom cabinet width adjustment fixing module (5) have the same structure, and both include front and rear adjustment parts and a bottom fixing clamp part (11). Two groups of bottom fixing clamp parts (11) for lifting the cabinet frame off the loading and unloading workbench (10) are installed on the upper part of the front and rear adjustment parts. The front and rear adjustment parts can adjust the position of the bottom fixing clamp part (11). A downward pressing cylinder is also provided on the inner side of the bottom fixing clamp part (11). The downward pressing cylinder can rotate and press the profile downward to fix the profile.

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