Disclosure of Invention
Aiming at the defects existing in the prior art, the embodiment of the invention aims to provide a pressure steel pipe machine welding device so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a pressure steel pipe machine welding equipment, includes equipment seat, welding robot and locating rack, welding robot sets up the rear side at the equipment seat, the two bisymmetry of locating rack sets up the left and right sides at the equipment seat, a plurality of equal slidable mounting of locating rack is on the equipment seat, moving mechanism is all installed to the left and right sides of equipment seat, moving mechanism's output links to each other with two locating racks that are located the equipment seat homonymy respectively, one side circumference distribution of locating rack has the spout that is used for supplying fixture to install, still includes:
the driving and controlling mechanisms are symmetrically distributed on the left side and the right side of the equipment seat in pairs, two driving and controlling mechanisms positioned on the same side of the equipment seat are distributed between two positioning frames on the same side of the equipment seat, four driving and controlling mechanisms are slidably mounted on the equipment seat, and one end of each driving and controlling mechanism is slidably matched with one end of each clamping mechanism;
When the driving and controlling mechanism is fixed on the equipment seat in an extending mode, the clamping mechanism drives the linkage mechanism to move and contact with the driving and controlling mechanism, and the linkage mechanism does not drive the driving and controlling mechanism to synchronously move at the moment;
When the driving and controlling mechanism releases the fixed state with the equipment seat in a shrinkage mode, the clamping mechanism drives the linkage mechanism to move and contact with the driving and controlling mechanism, and at the moment, the linkage mechanism can drive the driving and controlling mechanism to move along with the clamping mechanism.
As a further technical scheme of the invention, the driving and controlling mechanism comprises driving and controlling frames, hydraulic parts and driving and controlling rollers, wherein the driving and controlling frames are symmetrically distributed on the left side and the right side of the equipment seat in pairs, the two driving and controlling frames on the same side are positioned between the two positioning frames on the same side, the driving and controlling frames are slidably arranged on the equipment seat, the hydraulic parts are arranged on the driving and controlling frames, the output end of the hydraulic part penetrates through the driving and controlling frames and intermittently contacts with the equipment seat, the driving and controlling rollers are circumferentially distributed on one side of the driving and controlling frames, spiral guide grooves which are slidably matched with the clamping mechanism are formed on the driving and controlling rollers, and arc-shaped check blocks which are intermittently matched with the linkage mechanism are fixed on the outer wall of the driving and controlling rollers.
As a further technical scheme of the invention, the clamping mechanism comprises a driving assembly, a sliding seat and a clamping assembly, wherein the driving assembly is circumferentially distributed on the positioning frame and is in sliding fit with the spiral guide groove, the left end and the right end of the driving assembly are both fixed with linkage mechanisms which are intermittently matched with the arc-shaped stop blocks, one end of the driving assembly is connected with the sliding seat which is slidably arranged in the sliding groove, and the sliding seat is provided with the clamping assembly for clamping and fixing the pressure steel pipe.
As a further technical scheme of the invention, the driving assembly comprises a sleeve, a gear, a rack and a guide post, wherein the sleeve is circumferentially distributed on the positioning frame, the outer wall of the sleeve is rotationally connected with the positioning frame, the guide post which is in sliding fit with the spiral guide groove is fixed on the side wall of the sleeve, the two ends of the sleeve are both fixed with a linkage mechanism, the gear is fixed on the outer wall of one end of the sleeve, and the gear is meshed with the rack fixed on the sliding seat.
As a further technical scheme of the invention, one end of the driving and controlling roller penetrates through the sleeve, and the inner diameter of the sleeve is larger than the outer diameter of the arc-shaped stop block.
As a further technical scheme of the invention, the clamping assembly comprises a fixing frame, a sliding column, a clamping plate and a first spring, wherein the fixing frame is slidably arranged in a chute, the sliding column is horizontally slidably arranged on the fixing frame, the first spring is sleeved on the outer wall of the sliding column, one end of the sliding column is fixedly provided with the clamping plate for clamping and fixing the outer wall of the pressure steel pipe, and two ends of the first spring are respectively connected with the fixing frame and the clamping plate.
As a further technical scheme of the invention, the linkage mechanism comprises a sleeve, a linkage baffle and a second spring, wherein the sleeve is respectively fixed at two ends of the sleeve and is communicated with the sleeve, the linkage baffle is circumferentially distributed on one side of the sleeve, one end of the linkage baffle is rotationally connected with the inner wall on one side of the sleeve, the inner diameter of the linkage baffle is smaller than the outer diameter of the arc-shaped baffle and larger than the outer diameter of the driving and controlling roller, and the second spring is arranged between one side of the linkage baffle and the inner wall of the sleeve.
As a further technical scheme of the invention, the moving mechanism comprises a moving motor, a transmission structure and a bidirectional screw rod, wherein the moving motor is arranged in the equipment seat, the output end of the moving motor is connected with one end of the transmission structure, the other end of the transmission structure extends out of the equipment seat and is connected with the bidirectional screw rod, the bidirectional screw rod is rotatably arranged on the equipment seat, and two positioning frames positioned on the same side of the equipment seat are respectively connected with two ends of the bidirectional screw rod in a threaded manner.
Compared with the prior art, the invention has the beneficial effects that:
The clamping mechanism is matched with the moving mechanism and the driving and controlling mechanism, so that double-point clamping and fixing of a single pressure steel pipe can be realized, coaxiality of the two pressure steel pipes can be ensured, butt joint deviation of the two pressure steel pipes is reduced, welding quality of the pressure steel pipes is improved, the pressure steel pipes in the welding process can be well limited, welding position deviation caused by welding vibration is reduced, a formed welding seam is more uniform and attractive, welding precision of the pressure steel pipes is effectively improved, and high-precision welding requirements are met;
When the clamping position needs to be adjusted, the driving and controlling mechanism can be relieved from the fixed state of the equipment seat, and the driving and controlling roller and the clamping mechanism are driven to synchronously move through the linkage mechanism, so that the initial state of the clamping mechanism on the positioning frames cannot be changed, the clamping mechanism can be used for effectively clamping and fixing the pressure steel pipes, the distance between the two positioning frames can be changed, the clamping positions of the clamping mechanisms on the two positioning frames on the pressure steel pipes can be changed, the equipment can automatically adjust the clamping positions of the clamping mechanisms according to the specifications of the pressure steel pipes, the adaptability of the equipment to the pressure steel pipes with different specifications is remarkably improved, and the diversified welding requirements are met.
In order to more clearly illustrate the structural features and efficacy of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and examples.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
As shown in fig. 1 to 9, as a welding device for a steel pressure pipe machine provided in an embodiment of the present invention, the welding device includes a device seat 100, a welding robot 200, and a positioning frame 300, wherein the welding robot 200 is disposed at a rear side of the device seat 100, the positioning frames 300 are symmetrically disposed at left and right sides of the device seat 100, a plurality of positioning frames 300 are slidably mounted on the device seat 100, moving mechanisms are mounted at left and right sides of the device seat 100, output ends of the moving mechanisms are respectively connected with two positioning frames 300 located at a same side of the device seat 100, a chute for mounting a clamping mechanism 500 is circumferentially distributed at one side of the positioning frame 300, and the welding device further includes:
The driving and controlling mechanisms 400 are symmetrically distributed on the left side and the right side of the equipment seat 100 in pairs, two driving and controlling mechanisms 400 positioned on the same side of the equipment seat 100 are distributed between two positioning frames 300 positioned on the same side of the equipment seat 100, four driving and controlling mechanisms 400 are slidably mounted on the equipment seat 100, and one end of each driving and controlling mechanism 400 is slidably matched with one end of the clamping mechanism 500;
The linkage mechanisms 600 are distributed on the left side and the right side of the clamping mechanism 500, and the linkage mechanisms 600 are intermittently matched with the driving and controlling mechanism 400.
In the initial state, the driving and controlling mechanism 400 is fixed on the equipment seat 100 in an extending mode, the single moving mechanism drives the two positioning frames 300 to move in opposite directions, the two positioning frames 300 drive the respective clamping mechanisms 500 to move in opposite directions, the clamping mechanisms 500 can clamp and fix the pressure steel pipes positioned in the middle of the positioning frames 300 in a matching mode, so that the single pressure steel pipe is fixed at two points, the coaxiality of the two pressure steel pipes can be ensured, the butt joint deviation of the two pressure steel pipes is reduced, the welding quality of the pressure steel pipes is improved, the pressure steel pipes in the welding process can be well limited, the welding position deviation caused by welding vibration is reduced, the welding precision of the pressure steel pipes is improved effectively, and the high-precision welding requirement is met;
When the clamping position of a single steel pipe needs to be changed, the driving and controlling mechanism 400 releases the fixed state of the equipment seat 100 in a shrinkage mode, so that the driving and controlling mechanism can freely slide on the equipment seat 100, at the moment, the moving mechanism drives the two positioning frames 300 to be close to or far away from each other, the two positioning frames 300 drive the respective clamping mechanisms 500 to be close to or far away from each other, the clamping mechanism 500 drives the linkage mechanism 600 to move and enable the linkage mechanism 600 to be in contact with the driving and controlling mechanism 400, and the linkage mechanism 600 can drive the driving and controlling mechanism 400 to synchronously move in a mode of moving and contacting with the driving and controlling mechanism 400, so that the driving and controlling mechanism 400 can synchronously move with the clamping mechanism 500, the initial state of the clamping mechanism 500 on the positioning frames 300 is not changed, the effective clamping and fixing of the pressure steel pipe are facilitated, and the distance between the two positioning frames 300 can be changed, so that the clamping position of the clamping mechanism 500 on the two positioning frames 300 on the pressure steel pipe is changed, the clamping position of the pressure steel pipe can be automatically adjusted according to the pressure steel pipe, and the welding requirements of the equipment on different pressure steel pipes are remarkably met.
As shown in fig. 2 to 8, as a preferred embodiment of the present invention, the driving and controlling mechanism 400 includes driving and controlling frames 410, hydraulic members 420 and driving and controlling rollers 430, the driving and controlling frames 410 are symmetrically distributed on the left and right sides of the device seat 100, and two driving and controlling frames 410 on the same side are located between two positioning frames 300 on the same side, the driving and controlling frames 410 are slidably mounted on the device seat 100, the hydraulic members 420 are mounted on the driving and controlling frames 410, the output ends of the hydraulic members 420 penetrate through the driving and controlling frames 410 and intermittently contact with the device seat 100, driving and controlling rollers 430 are circumferentially distributed on one side of the driving and controlling frames 410, spiral guide grooves 440 slidably matched with the clamping mechanism 500 are formed on the driving and controlling rollers 430, and arc-shaped stoppers 450 intermittently matched with the linkage mechanism 600 are fixed on the outer walls of the driving and controlling rollers 430.
In the initial state, the hydraulic part 420 can contact with the equipment seat 100 in an extending manner and tightly press the driving and controlling frame 410 and the equipment seat 100 mutually, so that the driving and controlling frame 410 and the upper driving and controlling roller 430 thereof are fixed, the driving and controlling roller 430 in the static state relative to the equipment seat 100, when the clamping mechanism 500 moves, the clamping mechanism 500 in the moving process can be driven to rotate by the driving and controlling roller 430 in the static state through the spiral guide groove 440, the clamping mechanism 500 can clamp and fix the pressure steel pipe positioned in the middle of the positioning frame 300 in a rotating manner, the stability of the pressure steel pipe in the welding process is ensured, the welding efficiency and the welding quality of the pressure steel pipe are improved, meanwhile, the clamping mechanism 500 drives the linkage mechanism 600 to move and enable the linkage mechanism to contact with the arc-shaped stop 450, and the linkage mechanism 600 can not drive the pressure steel pipe due to the fact that the arc-shaped stop 450 is in the static state relative to the equipment seat 100;
When the clamping position of the pressure steel pipe needs to be changed, the hydraulic part 420 is separated from the equipment seat 100 in a shrinkage manner, so that the driving and controlling frame 410 can freely slide on the equipment seat 100, at the moment, when the clamping mechanism 500 drives the linkage mechanism 600 to move, the linkage mechanism 600 can drive the driving and controlling roller 430 to synchronously move through the arc-shaped stop block 450, so that the driving and controlling roller 430 and the spiral guide groove 440 on the driving and controlling roller 430 synchronously move along with the clamping mechanism 500, the initial state of the clamping mechanism 500 on the positioning frame 300 is ensured not to be changed, namely, the clamping mechanism 500 is ensured not to rotate, the effective clamping and fixing of the pressure steel pipe are facilitated, the distance between the two positioning frames 300 can be changed, the clamping position of the clamping mechanism 500 on the two positioning frames 300 on the pressure steel pipe is changed, the clamping position of the pressure steel pipe can be automatically adjusted according to the pressure steel pipe, the adaptability of the equipment to the pressure steel pipe is remarkably improved, and the diversified welding requirements are met.
In a preferred embodiment, the hydraulic part 420 preferably adopts a hydraulic telescopic structure composed of a hydraulic cylinder and a hydraulic rod, the equipment seat 100 is provided with a track groove for sliding the positioning frame 300 and the driving and controlling frame 410, and a certain buffer space is arranged between the bottom of the driving and controlling frame 410 and the track groove, so that the hydraulic part 420 can conveniently prop up the driving and controlling frame 410 against the track groove in an extending manner;
The positioning frame 300 and the driving frame 410 are concentric, and the middle parts of the positioning frame 300 and the driving frame 410 are provided with through openings for the pressure steel pipes to pass through.
As shown in fig. 2 to 8, as a preferred embodiment of the present invention, the clamping mechanism 500 includes a driving assembly 510, a sliding seat 520 and a clamping assembly 530, wherein the driving assembly 510 is circumferentially distributed on the positioning frame 300 and slidingly cooperates with the spiral guide groove 440, both left and right ends of the driving assembly 510 are fixed with a linkage mechanism 600 intermittently cooperating with the arc-shaped stop 450, one end of the driving assembly 510 is connected with the sliding seat 520 slidingly mounted in the sliding groove, and the sliding seat 520 is mounted with the clamping assembly 530 for clamping and fixing the penstock.
The driving assembly 510 comprises a sleeve 511, a gear 512, a rack 513 and a guide post 514, wherein the sleeve 511 is circumferentially distributed on the positioning frame 300, the outer wall of the sleeve 511 is rotationally connected with the positioning frame 300, the guide post 514 which is in sliding fit with the spiral guide groove 440 is fixed on the side wall of the sleeve 511, the two ends of the sleeve 511 are both fixed with a linkage mechanism 600, the gear 512 is fixed on the outer wall of one end of the sleeve 511, and the gear 512 is meshed with the rack 513 fixed on the sliding seat 520;
one end of the driving roller 430 penetrates through the sleeve 511, and the inner diameter of the sleeve 511 is larger than the outer diameter of the arc-shaped stop 450, so that in the process that the linkage mechanism 600 is not contacted with the arc-shaped stop 450, the sleeve 511 can be ensured to effectively move outside the arc-shaped stop 450, and therefore the clamping mechanism 500 can effectively and stably clamp and fix the pressure steel pipe, and the welding efficiency and the welding quality of the pressure steel pipe are improved.
When the driving and controlling frame 410 is fixedly connected with the equipment seat 100, the moving mechanism drives the positioning frame 300 to move, the positioning frame 300 drives the sleeve 511 to move, the sleeve 511 drives the linkage mechanism 600 and the guide pillar 514 to move, the linkage mechanism 600 cannot stir the arc-shaped stop block 450 in a static state at the moment, the guide pillar 514 can drive the sleeve 511 to rotate on the positioning frame 300 in a mode of moving and matching with the spiral guide groove 440, the sleeve 511 drives the gear 512 to rotate, the gear 512 drives the sliding seat 520 to move in the sliding groove through the rack 513, and the sliding seat 520 drives the clamping assembly 530 on the sliding seat to move towards a direction close to the pressure steel pipe, so that the clamping assembly 530 can clamp and fix the pressure steel pipe;
when the driving and controlling frame 410 is in a free state, the moving mechanism drives the positioning frame 300 to move, the positioning frame 300 drives the sleeve 511 to move, the sleeve 511 drives the linkage mechanism 600 and the guide pillar 514 to move, the linkage mechanism 600 drives the driving and controlling roller 430 to synchronously move along with the sleeve 511 through the arc-shaped stop block 450, so that the arc-shaped guide groove on the driving and controlling roller 430 synchronously moves with the guide pillar 514, the arc-shaped guide groove and the guide pillar 514 in the synchronous moving state cannot cause the driving and controlling roller 430 to rotate, and the sliding seat 520 and the clamping assembly 530 on the sliding seat and the clamping assembly 530 synchronously move along with the positioning frame 300 in an initial state, so that the clamping position of the clamping assembly 530 on the pressure steel pipe is changed.
In a preferred embodiment, balls or rollers may be mounted on the guide posts 514 at the mating end with the helical guide slot 440 to reduce friction therebetween.
As shown in fig. 2 to 7, as a preferred embodiment of the present invention, the clamping assembly 530 includes a fixing frame 531, a sliding column 532, a clamping plate 533 and a first spring 534, wherein the fixing frame 531 is slidably installed in the sliding groove, the sliding column 532 is horizontally slidably installed on the fixing frame 531, the first spring 534 is sleeved on the outer wall of the sliding column 532, one end of the sliding column 532 is fixed with the clamping plate 533 for clamping and fixing the outer wall of the penstock, and two ends of the first spring 534 are respectively connected with the fixing frame 531 and the clamping plate 533;
When the slide base 520 drives the fixing frame 531 to move towards the direction close to the pressure steel pipe, the fixing frame 531 drives the slide column 532 to move, the slide column 532 drives the clamping plate 533 to move, the clamping plate 533 can clamp and fix the pressure steel pipe in a moving mode, the first spring 534 can form flexible contact between the clamping plate 533 and the outer wall of the pressure steel pipe in a mode of being matched with the fixing frame 531, the surface of the steel pipe with different roundness errors can be adapted, vibration energy generated by welding can be absorbed through the damping effect of the spring, and the conduction of vibration to the positioning frame 300 and the equipment seat 100 is reduced.
In a preferred embodiment, the clamping plate 533 preferably has an arc-shaped plate structure, and a buffer rubber pad for buffering and increasing friction with the steel pipe is installed at the inner side of the clamping plate 533.
As shown in fig. 2 to 9, as a preferred embodiment of the present invention, the linkage mechanism 600 includes a sleeve 610, a linkage baffle 620 and a second spring 630, the sleeve 610 is respectively fixed at two ends of the sleeve 511 and is in communication with the sleeve 511, the linkage baffle 620 is circumferentially distributed on one side of the sleeve 610, one end of the linkage baffle 620 is rotatably connected with the inner wall on one side of the sleeve 610, the inner diameter of the linkage baffle 620 is smaller than the outer diameter of the arc-shaped stop 450 and larger than the outer diameter of the driving roller 430, and the second spring 630 is installed between one side of the linkage baffle 620 and the inner wall of the sleeve 610.
When the driving and controlling frame 410 is fixedly connected with the equipment seat 100, the sleeve 511 drives the sleeve 610 and the guide pillar 514 to move at the same time, the sleeve 610 drives the linkage baffle 620 to move, and at the moment, the elastic force of the second spring 630 to the linkage baffle 620 is smaller than the resistance applied by the equipment seat 100 to the arc-shaped stop 450, so that the linkage baffle 620 only contacts with the arc-shaped stop 450 and cannot drive the driving and controlling roller 430 through the arc-shaped stop 450, and further the clamping assembly 530 can clamp and fix the pressure steel pipe;
when the driving and controlling frame 410 is in a free state, the sleeve 511 drives the sleeve 610 and the guide post 514 to move, the sleeve 610 drives the linkage baffle 620 to move, at this time, the spring II 630 endows the linkage baffle 620 with elastic force larger than the resistance force of the arc-shaped stop 450, the spring II 630 can drive the linkage baffle 620 to move through the linkage baffle 620, and the linkage baffle 620 drives the driving and controlling roller 430 to synchronously move, so that the sliding seat 520 and the clamping assembly 530 thereon synchronously move along with the positioning frame 300 in an initial state, and the clamping position of the clamping assembly 530 on the pressure steel pipe is changed.
In a preferred embodiment, the arcuate stop 450 preferably has an annular block-like configuration with a notch positioned to sufficiently and effectively avoid the helical guide 440 so that the guide post 514 is a positive and continuous sliding fit with the helical guide 440;
the second spring 630 is preferably made of a metal material with a higher elastic coefficient, so that the elastic force of the second spring 630 can overcome the external resistance of the arc-shaped stop 450 in a free state, and the linkage baffle 620 can drive the driving roller 430 and the driving frame 410 to move synchronously with the positioning frame 300 through the arc-shaped stop 450.
As shown in fig. 1 to 5, as a preferred embodiment of the present invention, the moving mechanism includes a moving motor installed in the equipment base 100, a transmission structure, and a bi-directional screw 700, an output end of the moving motor is connected to one end of the transmission structure, the other end of the transmission structure extends out of the equipment base 100 and is connected to the bi-directional screw 700, the bi-directional screw 700 is rotatably installed on the equipment base 100, and two positioning frames 300 located at the same side of the equipment base 100 are respectively screw-connected to both ends of the bi-directional screw 700.
The moving motor drives the bidirectional screw 700 to rotate through the transmission mechanism, and the bidirectional screw 700 can drive the two positioning frames 300 positioned on the same side of the equipment seat 100 to move in opposite directions or move away from each other in a rotating mode, so that clamping of the pressure steel pipe and adjustment of the clamping position of the pressure steel pipe are completed, the welding efficiency and welding quality of the equipment are improved, and meanwhile the practicability and convenience of the equipment are improved.
In a preferred embodiment, the transmission structure is preferably a transmission structure comprising a synchronous belt and a synchronous wheel, and both the transmission structure and the mobile motor are conventional in the art and therefore not shown in the drawings.
The working principle of the invention is as follows:
in the initial state, the hydraulic part 420 can be contacted with the equipment seat 100 in an extending mode and mutually abutted against the drive control frame 410 and the equipment seat 100, thereby realizing the fixation of the drive control frame 410 and the drive control roller 430 on the drive control frame 410, and the drive control roller 430 can be in a static state relative to the equipment seat 100, the moving motor drives the bidirectional screw 700 to rotate through the transmission mechanism, the bidirectional screw 700 can drive the two positioning frames 300 positioned on the same side of the equipment seat 100 to move in opposite directions in a rotating mode, the two positioning frames 300 drive the respective sleeves 511 to move, the sleeves 511 simultaneously drive the sleeve 610 and the guide pillar 514 to move, the sleeve 610 drives the linkage baffle 620 to move, at the moment, the elastic force of the spring II 630 endows the linkage baffle 620 is smaller than the resistance exerted by the equipment seat 100 on the arc baffle 450, so that the linkage baffle 620 can only be contacted with the arc baffle 450 and can not drive the drive control roller 430 through the arc baffle 450, the guide pillar 514 can drive the sleeve 511 to rotate on the positioning frames 300 through the transmission mechanism, the sleeve 511 drives the gear 512 to rotate, the gear 512 to drive the gear 533 to move in the chute 520, the steel pipe 533 to move in the chute 520, the pressure slide mount 532 is driven by the pressure 533 to move towards the steel pipe 531, the welding position of the welding groove 532 is reduced, the welding pressure force is reduced, the welding accuracy of the welding pressure stud is reduced, the welding accuracy is improved, the welding accuracy is better, and the welding accuracy of the welding stud is realized, and the welding accuracy is better, and the welding accuracy is better than the welding stud and the welding stud is realized, and the welding stud is compared with the welding accuracy is better and the welding accuracy and the welding stud is better and the welding accuracy. The requirement of high-precision welding is met;
When the clamping position of a single steel pipe needs to be changed, the hydraulic part 420 is separated from the equipment seat 100 in a shrinkage way, so that the driving and controlling frame 410 can freely slide on the equipment seat 100, the moving motor drives the bidirectional screw 700 to rotate through the transmission mechanism, the bidirectional screw 700 can drive the two positioning frames 300 positioned on the same side of the equipment seat 100 to be away from or close to each other in a rotating way, the two positioning frames 300 drive the respective sleeves 511 to move, the sleeves 511 simultaneously drive the sleeves 610 and the guide posts 514 to move, the sleeves 610 drive the linkage baffle 620 to move, at the moment, the elastic force of the spring II 630 endows the linkage baffle 620 with a resistance force larger than that of the arc-shaped stop 450, the spring II 630 can drive the linkage baffle 620 to move, the linkage baffle 620 drives the driving and controlling roller 430 to synchronously move, so that the sliding seat 520 and the clamping assembly 530 on the sliding seat 300 synchronously move along with the positioning frames 300 in an initial state, thereby being convenient for effectively clamping and fixing the steel pipe under pressure, the distance between the two positioning frames 300 can also be changed, and the clamping position of the clamping mechanism 500 on the two positioning frames 300 on the steel pipe can be changed, the clamping position of the steel pipe can be adjusted according to the automatic steel pipe, the requirements of the welding requirements on the welding requirements of the welding equipment on the steel pipe can be satisfied, and the welding requirements of different specifications can be satisfied;
the working principle of the pressure steel pipe machine welding equipment is as above.