CN111843300A

CN111843300A - Intelligent multi-functional metal welding test machine

Info

Publication number: CN111843300A
Application number: CN202010624348.3A
Authority: CN
Inventors: 张红宾
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2020-10-30

Abstract

The invention discloses an intelligent multifunctional metal welding test machine, relates to the technical field of test equipment, and solves the problems that in the test process of the existing test machine, a welded iron plate needs to be frequently and intermittently slid by a person, a plurality of welding pipe sleeves need to be sequentially switched and moved under a welding machine pressure head by framing accurately, the operation process is extremely complicated, and the action is repeated seriously. The utility model provides an intelligent multi-functional metal welding test machine, includes automatic weld machine and location round platform, automatic weld machine includes toper pressure head and welder, the bottom center department of automatic weld machine top aircraft nose erects to prop and installs a apical axis, and the bottom of this apical axis is rotated and is installed a toper pressure head, and rotates on the bottom section of apical axis and overlap and be equipped with a welder. The positioning round platform can insert, position and butt-joint the test welding plate and the welding shaft tube together, and avoids the welding shaft tube from moving and dislocating with the through round hole on the test welding plate when sliding along with the supporting frame to influence the normal welding test.

Description

Intelligent multi-functional metal welding test machine

Technical Field

The invention relates to the technical field of test equipment, in particular to an intelligent multifunctional metal welding test machine.

Background

The production and processing industry nowadays, to seamless fixed connection between the metal, a great part is through welding carry out fixed connection, and all link together by the mode of manual welding usually, it is higher to operator's technical grade requirement, produce defects such as gas pocket, undercut after the product welding is accomplished easily, simultaneously at the welded in-process, if two welding spare are circular, it is not very convenient to fix, it is more difficult to rotate the product when the welding, at the welded in-process, manual welding is long, and is with high costs, when welding in batches, intensity of labour is too high, work efficiency is low, this has urged more intelligent automatic weld machine, wherein stainless steel MIG automatic weld machine uses comparatively extensively.

In such a situation where market competition is so intense, it is important to ensure good quality of the product. After production of each product is completed, strict inspection needs to be performed to ensure the quality of the product, and a testing machine for the automatic welding machine needs to be equipped to meet the welding test requirements.

For example, patent No. CN201620140488.2 discloses a steel tube testing machine, which belongs to the technical field of machinery. Be provided with the bedplate, be provided with a plurality of support columns on the bedplate, be provided with the upper plate on the support column, be provided with test cylinder on the upper plate, the last fixedly connected with test briquetting of cylinder axle, be provided with test base on the bedplate, test base is the rectangle structure, the last mounting hole that is provided with of test base, be provided with the steel pipe test head on the mounting hole, the bottom of bedplate is provided with a plurality of stands, be provided with a plurality of connection crossbeam between the stand. The utility model discloses an useful part is: be provided with the test cylinder in the top of bedplate, be provided with the test briquetting on the cylinder shaft of test cylinder, still be provided with the test base on the bedplate, be provided with the steel pipe test head on the test base, through on placing steel pipe test head or test base with the steel pipe to the effectual welding performance who tests out the steel pipe, the utility model discloses simple structure, convenient operation, the cost is lower.

The existing testing machine generally adopts a mode that a plurality of welding pipe sleeves and a welding iron plate are abutted against and butted for welding testing, the welding iron plate needs to be manually slid frequently and intermittently in the testing process, the welding pipe sleeves are accurately sized by eyes and are sequentially switched and moved to be arranged under a pressure head of the welding machine, the operation process is extremely complicated, the action is repeated seriously, the automation degree is low, the workload of workers is large, time and labor are wasted, and the testing efficiency is low.

Disclosure of Invention

The invention aims to provide an intelligent multifunctional metal welding test machine, which solves the problems that in the test process, a welded iron plate needs to be frequently and intermittently slid by a worker, a plurality of welding pipe sleeves need to be sequentially switched and moved under a welding machine pressure head by framing accurately, the operation process is extremely complicated, and the action is repeated seriously.

In order to achieve the purpose, the invention provides the following technical scheme: an intelligent multifunctional metal welding test machine comprises an automatic welding machine, a support, a supporting frame and a positioning round table, wherein the automatic welding machine comprises a conical pressure head and a welding gun, a top shaft is vertically supported and installed at the center of the bottom of a head at the top end of the automatic welding machine, the conical pressure head is rotatably installed at the bottom of the top shaft, and the welding gun is rotatably sleeved on the bottom section of the top shaft; the support comprises positioning lug blocks, a driving gear and a driven gear, the support is formed by welding a transverse bottom plate and a left symmetrical vertical supporting plate and a right symmetrical vertical supporting plate, wherein a driving gear penetrates through an upper transverse connecting plate between the two vertical supporting plates, the driven gear is sleeved at the other end of a rotating shaft of the driving gear, the two positioning lug blocks are symmetrically welded on the top end section of the vertical supporting plate on the right side of the support, and the suspension rod is inserted and installed on the two positioning lug blocks; the supporting frame comprises positioning shaft rods, a cross brace mounting plate and a rack rod, wherein the two positioning shaft rods are symmetrically welded at the bottom of the supporting frame, and the cross brace mounting plate is fixedly welded in the middle of the inner space of the supporting frame; a rack rod is welded at the bottom side of the back of the supporting frame in a cross bracing manner; five positioning round tables are inserted in the top of the supporting frame and penetrate through the top supporting plate of the supporting frame, a rectangular groove is formed in the top supporting plate of the supporting frame, and the electric test welding plate is clamped in the rectangular groove and penetrates through the five positioning round tables; the test welding plate comprises welding shaft tubes, and five welding shaft tubes are correspondingly sleeved and inserted on five positioning circular truncated cones and butted and abutted with five penetrating circular holes on the test welding plate; a welding switch is fixedly arranged in the middle of the top end of the bracket, and an L-shaped support rod is fixedly welded to the right side of the three-quarter height section of the vertical support supporting plate on the right side of the bracket; the welding switch and the descending switch are both inching button switches.

Preferably, the suspension rod comprises a vertical support push plate and a top wheel, the suspension rod is locked and hung at the bottom of the automatic welding machine head, the L vertical support push plate is welded at the left side of the suspension rod at intervals, a row of tooth sheets are arranged on the bottom section of the vertical support push plate, and the top wheel is rotatably arranged on the bottom bending horizontal section of the vertical support push plate.

Preferably, the L-shaped stay bar comprises an inclined top plate, a push rod, an inserting frame and a pushing column; an L-shaped stress plate is slidably arranged on the main body longitudinal rod section of the L-shaped stay rod through a spring pushing sleeve, and an inclined top plate is welded at the front end of the L-shaped stress plate; a push rod penetrates and is inserted into the tail end shaft collar of the L-shaped stay bar through a spring pushing device, and an insertion frame penetrates and is arranged in the middle of the tail end shaft collar; and the rear end of the stressed mounting plate of the inclined top plate is provided with a pushing column.

Preferably, the positioning round table comprises positioning rods, the bottom of each of the five positioning round tables is welded with one positioning rod, and the five positioning rods penetrate through and are inserted into the cross support mounting plate through spring pushing.

Preferably, the support frame is arranged on the top end section of the bracket in a penetrating and sliding manner through two positioning shaft rods at the bottom of the support frame, and the rack rods are correspondingly meshed and contacted with the driven gears; the driven gear is in transmission connection with a rotating shaft of the driven gear through a ratchet wheel at the center, the diameter of the driven gear is 2.5 times that of the driving gear, and the driving gear is correspondingly in contact engagement with a rack on the bottom section of the vertical support push plate.

Preferably, the top wheel can be in rolling sliding contact with the inclined surface of the inclined top plate along with the upward sliding of the suspension pull rod and the vertical support push plate; the pushing column and the descending switch are installed in a front-back opposite direction.

Preferably, the inserting frame is formed by welding and supporting a long inserting rod and a short inserting rod at the front and the back, wherein a round baffle is welded at the bottom of the long inserting rod, and the short inserting rod can be inserted downwards to penetrate through the push rod.

Preferably, the positioning circular table is arranged right opposite to the lower part of the conical pressure head, and the conical pressure head can directly descend to be in contact with the welding shaft tube and the top pressure of the positioning circular table; the positioning rod is vertically opposite to the welding switch and can be downwards inserted to be in abutting contact with the welding switch.

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

1. according to the invention, the positioning round platform and the suspension rod are matched to use, and the welding switch and the descending switch can be alternately stamped and pressed by utilizing the up-and-down sliding force of the welding machine head, so that each operation process of a welding test is sequentially and serially connected, the welding test is automated to a certain degree, the trouble of pressing a plurality of switches by manually participating in frequent operation is eliminated, time and labor are saved, the operation is convenient and fast, and the test efficiency is improved;

2. according to the invention, power transmission is carried out through the positioning round platform and the suspension pull rod, so that point pressing power of each switch and switching transfer power of a welding shaft tube are all derived from the welding machine (namely, up-down sliding power of the machine head), and an additional power source is not required to be arranged for a testing machine, so that the consumption of a power device is reduced, the manufacturing cost is reduced, and the economy is better;

3. The vertical support push plate can drive the driving gear and the driven gear to rotate by utilizing the upward sliding power of the automatic welding machine head, and the rack rod and the support frame are driven to slide leftwards by meshing to transfer the five welding shaft tubes to be intermittently and sequentially switched and transferred under the conical pressure head for welding, so that the switching and transferring of the five welding shaft tubes can be automatically carried out, the steps of frequently moving manually and accurately welding the shaft tubes are omitted, the use is flexible and convenient, and the workload of workers is reduced;

4. the positioning circular truncated cone can insert, position and butt joint the test welding plate and the welding shaft tube together, and avoids the welding shaft tube from moving and dislocating together with the through round hole on the test welding plate when sliding along with the supporting frame, so that the normal welding test is influenced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic bottom three-dimensional structure of the present invention;

FIG. 3 is a schematic view of the driven gear mounting position of the present invention;

FIG. 4 is a schematic view of the driving gear mounting position of the present invention;

FIG. 5 is a schematic view of the installation of the suspension rod slide insert of the present invention;

FIG. 6 is a schematic view of a three-dimensional structure of a suspension rod according to the present invention;

FIG. 7 is an enlarged view of the portion A of FIG. 4 according to the present invention;

FIG. 8 is a bottom view of the L-shaped stay bar of the present invention;

FIG. 9 is a schematic view of the sliding sleeve installation of the sloped roof of the present invention;

FIG. 10 is a schematic view of a positioning table according to the present invention;

in the figure: 1. automatic welding machine; 101. a conical ram; 102. a welding gun; 2. a support; 201. positioning the ear block; 202. a driving gear; 203. a driven gear; 3. a support frame; 301. positioning the shaft lever; 302. a cross brace mounting plate; 303. a rack bar; 4. positioning the circular truncated cone; 401. positioning a rod; 5. testing the welding plate; 501. welding the shaft tube; 6. a suspension rod; 601. a vertical support push plate; 602. a top wheel; 7. welding a switch; 8. an L-shaped strut; 801. an inclined top plate; 802. a push rod; 803. inserting a frame; 804. pushing the column; 9. a down switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 10, an embodiment of the present invention includes: an intelligent multifunctional metal welding test machine comprises an automatic welding machine 1, a support 2, a support frame 3 and a positioning circular truncated cone 4, wherein the automatic welding machine 1 comprises a conical pressure head 101 and a welding gun 102, a top shaft is vertically supported and installed at the center of the bottom of a head at the top end of the automatic welding machine 1, the conical pressure head 101 is rotatably installed at the bottom of the top shaft, and the welding gun 102 is rotatably sleeved on the bottom section of the top shaft; the support 2 comprises a positioning lug block 201, a driving gear 202 and a driven gear 203, the support 2 is formed by welding a transverse bottom plate and a left symmetrical vertical supporting plate and a right symmetrical vertical supporting plate, wherein the driving gear 202 is installed on an upper transverse connecting plate between the two vertical supporting plates in a penetrating manner, the driven gear 203 is sleeved at the other end of a rotating shaft of the driving gear 202, the two positioning lug blocks 201 are symmetrically welded on the top end section of the vertical supporting plate on the right side of the support 2, and the suspension rod 6 is installed on the two positioning lug blocks 201 in a penetrating manner; the supporting frame 3 comprises a positioning shaft rod 301, a cross brace mounting plate 302 and a rack rod 303, wherein the bottom of the supporting frame 3 is symmetrically welded with the two positioning shaft rods 301, and the middle of the inner space of the supporting frame 3 is fixedly welded with the cross brace mounting plate 302; a rack bar 303 is welded at the bottom side of the back of the support frame 3; the five positioning round tables 4 are inserted through the top supporting plate of the supporting frame 3 in a top inserting mode, a rectangular groove is formed in the top supporting plate of the supporting frame 3, and the electric test welding plate 5 is clamped in the rectangular groove and penetrates through the five positioning round tables 4; the test welding plate 5 comprises a welding shaft tube 501, and five welding shaft tubes 501 are correspondingly sleeved and inserted on five positioning circular truncated cones 4 and butt-jointed with five through circular holes on the test welding plate 5; a welding switch 7 is fixedly arranged in the middle of the top end of the bracket 2, and an L-shaped support rod 8 is fixedly welded to the right side of the three-quarter height section of the vertical support plate on the right side of the bracket 2; the welding switch 7 and the descending switch 9 are both inching button switches; the suspension rod 6 comprises a vertical support push plate 601 and a top wheel 602, the suspension rod 6 is locked and hung at the bottom of the machine head of the automatic welding machine 1, the L vertical support push plate 601 is welded at the left side of the suspension rod 6 at intervals, a row of tooth sheets are arranged on the bottom section of the vertical support push plate 601, and the bottom bending horizontal section of the vertical support push plate 601 is rotatably provided with the top wheel 602.

Description of the drawings: the welding switch 7 and the electric welding switch on the automatic welding machine 1 are electrically connected in parallel through a wire;

the descending switch 9 and a gliding switch on the automatic welding machine 1 are electrically connected in parallel through a wire;

further, the L-shaped stay 8 includes an inclined top plate 801, a push rod 802, an insertion frame 803, and a push column 804; an L-shaped stress plate is slidably arranged on the longitudinal rod section of the main body of the L-shaped stay bar 8 through a spring pushing sleeve, and an inclined top plate 801 is welded at the front end of the L-shaped stress plate; a push rod 802 is inserted through the tail end shaft ring of the L-shaped stay bar 8 through the spring pushing, and an insertion frame 803 is also inserted in the middle of the tail end shaft ring; the rear end of the stressed mounting plate of the inclined top plate 801 is provided with a pushing column 804, the inclined top plate 801 can slide right along the L-shaped support rod 8 to enable the pushing column 804 to poke and press the descending switch 9, and a spring on the L-shaped support rod 8 can enable the inclined top plate 801 and the pushing column 804 to slide left and reset.

Further, location round platform 4 includes locating lever 401, and a locating lever 401 has all been welded to the bottom of five location round platforms 4, and this five location locating levers 401 are pushed up through the spring and are run through the cartridge on stull mounting panel 302, and location round platform 4 can alternate location butt joint together with test welding board 5 and welding central siphon 501, avoids welding central siphon 501 to gather the dislocation with the round hole that runs through on the test welding board 5 when following carriage 3 and slide, influences normal welding test.

Further, the support frame 3 is installed on the top end section of the bracket 2 by two positioning shafts 301 at the bottom part thereof in a penetrating and sliding way, and the rack bar 303 is correspondingly meshed and contacted with the driven gear 203; driven gear 203 is connected rather than the pivot transmission through the ratchet of center department, and driven gear 203's diameter is 2.5 times of driving gear 202, and driving gear 202 correspond with the rack contact meshing on the section of erectting to prop push pedal 601 bottom, driven gear 203's diameter is great can mesh to push away carriage 3 and carry out the slip of great distance, is suitable for the interval between the welding central siphon 501.

Further, following the upward sliding of the suspension pull rod 6 and the vertical support push plate 601, the top wheel 602 can be in rolling sliding contact with the inclined surface of the inclined top plate 801; the pushing column 804 and the descending switch 9 are installed in a front-back opposite direction, when the suspension rod 6 slides upwards to the topmost end, the pushing column 804 can be pushed and driven to slide backwards to press the descending switch 9 by the upward sliding power of the welding machine head through the upward sliding matching of the top wheel 602 and the inclined plane of the inclined top plate 801, the step of pressing the descending switch 9 by a person is omitted, and the use is convenient, time-saving and labor-saving.

Further, the insertion frame 803 is formed by welding and supporting two insertion rods, one long and one short, at the front and back, wherein a circular baffle is welded at the bottom of the long insertion rod, the short insertion rod can be inserted downwards through the push rod 802, the insertion frame 803 can insert and position the descending switch 9 in a front convex use state so as to provide right sliding poking of the pushing column 804 for pressing, the push rod 802 is installed by adopting spring pushing, only the insertion frame 803 needs to be lifted and taken off, the push rod 802 can drive the descending switch 9 to automatically slide and take out at the right side, and the trouble of manually taking out and positioning the descending switch 9 is omitted.

Further, the positioning circular truncated cone 4 is arranged right below the conical pressure head 101, and the conical pressure head 101 can directly descend to be in pressing contact with the welding shaft tube 501 and the positioning circular truncated cone 4; the positioning rod 401 is opposite to the welding switch 7 up and down, can be inserted downwards to be in abutting contact with the welding switch 7, and can drive the positioning rod 401 to slide downwards through the conical pressure head 101 by utilizing the downwards sliding power of the welding head to push the welding switch 7, so that the welding gun 102 starts to perform spin welding on the welding shaft tube 501.

The working principle is as follows: when in use: firstly, an electric test welding plate 5 is clamped in a rectangular groove at the top end of a supporting frame 3 and penetrates through five positioning circular truncated cones 4, then five welding shaft tubes 501 are correspondingly sleeved on the five positioning circular truncated cones 4 to enable the five welding shaft tubes to be abutted with five penetrating circular holes on the test welding plate 5 in a butt joint mode, finally the supporting frame 3 is integrally slid to the right to enable the welding shaft tube 501 at the leftmost end to be arranged under a conical pressure head 101 in a sliding mode, then a push rod 802 is inserted to the left in a jacking mode, a descending switch 9 is enabled to be in jacking contact with a jacking column 804 to be opened, the descending switch 9 can control a starting machine head to directly descend to be in jacking contact with the welding shaft tubes 501 and the positioning circular truncated cones 4, the welding shaft tubes 501 are jacked and positioned, a positioning rod 401 slides downwards to press a welding switch 7, and a welding gun 102 is;

After the welding is finished for one circle, the welding gun 102 is automatically powered off, the machine head slides upwards to reset (realized by a program of a single chip microcomputer on the welding machine), an upward sliding vertical support push plate 601 following the machine head can slide upwards to drive a driving gear 202 and a driven gear 203 to be meshed in a rotating mode to drive a rack bar 303 and a support frame 3 to slide leftwards to move so as to switch and transfer a second welding shaft tube 501 to be under a conical pressure head 101 to perform welding, when the suspension pull rod 6 slides upwards to the top end, a top wheel 602 can be in top sliding contact with an inclined plane of an inclined top plate 801 and pushes a right sliding top of a top push column 804 to press a descending switch 9, so that the;

when the suspension rod 6 slides upwards after the last test welding plate 5 is welded, the insertion frame 803 is lifted and pulled off to enable the descending switch 9 to automatically rebound and slide to the right, so that the ejector pin 804 is prevented from contacting with the top of the descending switch 9, and the test is stopped.

Note that: the central ratchet wheel of the driving gear 202 can ensure that the driving gear 202 drives the driven gear 203 to rotate anticlockwise in a single direction, and the idle rack bar 303 of the driving gear 202 and the driven gear 203 cannot rotate along with each other when the vertical support push plate 601 slides downwards, so that the welding shaft tube 501 after switching and shifting can be prevented from sliding back and resetting.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an intelligent multi-functional metal welding test machine which characterized in that: the automatic welding machine comprises an automatic welding machine (1), a support (2), a supporting frame (3) and a positioning circular truncated cone (4), wherein the automatic welding machine (1) comprises a conical pressure head (101) and a welding gun (102), a top shaft is vertically supported at the center of the bottom of a head at the top end of the automatic welding machine (1), the conical pressure head (101) is rotatably arranged at the bottom of the top shaft, and the welding gun (102) is rotatably sleeved on the bottom section of the top shaft; the support (2) comprises positioning lug blocks (201), a driving gear (202) and a driven gear (203), the support (2) is formed by welding a transverse bottom plate and a left symmetrical vertical supporting plate and a right symmetrical vertical supporting plate, wherein the driving gear (202) penetrates through an upper transverse connecting plate between the two vertical supporting plates, the driven gear (203) is sleeved at the other end of a rotating shaft of the driving gear (202), the two positioning lug blocks (201) are symmetrically welded on the top end section of the vertical supporting plate on the right side of the support (2), and a suspension rod (6) is arranged on the two positioning lug blocks (201) in an inserting mode; the supporting frame (3) comprises a positioning shaft rod (301), a cross brace mounting plate (302) and a rack rod (303), the bottom of the supporting frame (3) is symmetrically welded with the positioning shaft rod (301), and the middle of the inner space of the supporting frame (3) is fixedly welded with the cross brace mounting plate (302); a rack rod (303) is welded at the bottom side position of the back of the supporting frame (3) in a cross bracing way; five positioning round tables (4) are inserted through the top supporting plate of the supporting frame (3) in a top inserting mode, a rectangular groove is formed in the top supporting plate of the supporting frame (3), and the electric test welding plate (5) is clamped in the rectangular groove and penetrates through the five positioning round tables (4); the testing welding plate (5) comprises welding shaft tubes (501), and five welding shaft tubes (501) are correspondingly sleeved and inserted on five positioning circular truncated cones (4) and butted and abutted with five penetrating circular holes on the testing welding plate (5); a welding switch (7) is fixedly installed in the middle of the top end of the support (2), and an L-shaped support rod (8) is fixedly welded to the right side of the three-quarter height section of the vertical support plate on the right side of the support (2); the welding switch (7) and the descending switch (9) are both inching button switches.

2. The intelligent multifunctional metal welding tester as claimed in claim 1, wherein: the suspension rod (6) comprises a vertical support push plate (601) and a top wheel (602), the suspension rod (6) is locked and hoisted at the bottom of the automatic welding machine (1) head, a L vertical support push plate (601) is welded at the left side of the suspension rod at intervals, a row of tooth sheets are arranged on the bottom section of the vertical support push plate (601), and the bottom bending horizontal section of the vertical support push plate (601) is rotatably provided with the top wheel (602).

3. The intelligent multifunctional metal welding tester as claimed in claim 1, wherein: the L-shaped stay bar (8) comprises an inclined top plate (801), a push rod (802), an inserting frame (803) and a pushing column (804); an L-shaped stress plate is slidably arranged on the longitudinal rod section of the main body of the L-shaped stay bar (8) through a spring ejection sleeve, and the front end of the L-shaped stress plate is welded with an inclined top plate (801); a push rod (802) is inserted through a tail end shaft ring of the L-shaped stay bar (8) through a spring pushing, and an insertion frame (803) is also inserted in the middle of the tail end shaft ring; and a pushing column (804) is arranged at the rear end of the stressed mounting plate of the inclined top plate (801).

4. The intelligent multifunctional metal welding tester as claimed in claim 1, wherein: the positioning round table (4) comprises positioning rods (401), the bottom of each of five positioning round tables (4) is welded with one positioning rod (401), and the five positioning rods (401) are pushed by springs to penetrate through and be inserted into the cross support mounting plates (302).

5. The intelligent multifunctional metal welding tester as claimed in claim 1, wherein: the supporting frame (3) is arranged on the top end section of the bracket (2) in a penetrating and sliding mode through two positioning shaft rods (301) at the bottom of the supporting frame, and the rack rods (303) are correspondingly meshed and contacted with the driven gears (203); the driven gear (203) is in transmission connection with a rotating shaft of the driven gear through a ratchet wheel at the center, the diameter of the driven gear (203) is 2.5 times that of the driving gear (202), and the driving gear (202) is correspondingly in contact engagement with a rack on the bottom section of the vertical support push plate (601).

6. The intelligent multifunctional metal welding tester as claimed in claim 1, wherein: the top wheel (602) can roll and slide on the inclined surface of the inclined top plate (801) along with the upward sliding of the suspension pull rod (6) and the vertical support push plate (601); the pushing column (804) and the descending switch (9) are arranged in a front-back opposite direction.

7. The intelligent multifunctional metal welding tester as claimed in claim 3, wherein: the insertion frame (803) is formed by welding and supporting two insertion rods, namely a long insertion rod and a short insertion rod, at the front and the back, wherein a round baffle is welded at the bottom of the long insertion rod, and the short insertion rod can be inserted downwards to penetrate through the push rod (802).

8. The intelligent multifunctional metal welding tester as claimed in claim 1, wherein: the positioning circular truncated cone (4) is arranged right below the conical pressure head (101), and the conical pressure head (101) can directly descend to be in jacking contact with the welding shaft tube (501) and the positioning circular truncated cone (4); the positioning rod (401) is vertically opposite to the welding switch (7) and can be downwards inserted to be in pressing contact with the welding switch (7).