CN113145983A - Build-up welding machine tool for inner wall of pipe - Google Patents
Build-up welding machine tool for inner wall of pipe Download PDFInfo
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- CN113145983A CN113145983A CN202110525033.8A CN202110525033A CN113145983A CN 113145983 A CN113145983 A CN 113145983A CN 202110525033 A CN202110525033 A CN 202110525033A CN 113145983 A CN113145983 A CN 113145983A
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- 238000003466 welding Methods 0.000 title claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 142
- 239000010959 steel Substances 0.000 claims abstract description 142
- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 19
- 230000033001 locomotion Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 20
- 230000001360 synchronised effect Effects 0.000 claims description 20
- 230000009471 action Effects 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 30
- 230000008569 process Effects 0.000 description 22
- 230000000694 effects Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
- B23K9/044—Built-up welding on three-dimensional surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Arc Welding In General (AREA)
Abstract
The application provides a tube inner wall build-up welding lathe, it includes lathe base, automatic weld unit, frock unit, firm unit and power supply cable unit. The automatic welding unit has a surfacing torch head and a pushing mechanism configured to actuate movement of the surfacing torch head. The frock unit includes fixed module of steel pipe and steel pipe support module, and the fixed module of steel pipe includes rotating part and calliper subassembly, and the rotating part is connected with the calliper subassembly and is used for ordering about the calliper subassembly and rotates, and the calliper subassembly is configured into the steel pipe of adaptation and the different diameters of centre gripping, and the steel pipe support module is located and is used for supporting the steel pipe between automatic weld unit and the fixed module of steel pipe. The stabilizing unit is connected with the rotating part, is configured to move synchronously with the caliper assembly and is used for supporting the inner wall of the steel pipe. The power supply cable unit is connected with the automatic welding unit, the tool unit and the stabilizing unit and used for supplying power to the automatic welding unit, the tool unit and the stabilizing unit.
Description
Technical Field
The application relates to the technical field of surfacing equipment, in particular to a pipe inner wall surfacing machine tool.
Background
Surfacing is an economical and rapid process method for modifying the surface of materials, and is increasingly widely applied to manufacturing and repairing parts in various industrial departments.
At present, manual electric arc manual in-pipe build-up welding or automatic build-up welding equipment for the inner wall of the pipeline are generally adopted for build-up welding of the inner wall of a similar pipeline, however, the existing automatic build-up welding equipment for the inner wall of the pipeline cannot adapt to pipelines with various sizes, the clamping of the pipeline easily causes the deformation of the end part of the pipeline, and meanwhile, the manual electric arc manual in-pipe build-up welding cannot process the pipeline with a small diameter.
Disclosure of Invention
The application provides a tube inner wall build-up welding lathe to improve above-mentioned technical problem.
The present application is specifically such that:
based on above-mentioned purpose, this application embodiment provides a tube inner wall build-up welding lathe, includes:
a machine tool base;
the automatic welding unit is arranged on the machine tool base and is provided with a surfacing gun head and a pushing mechanism, and the pushing mechanism is configured to drive the surfacing gun head to move;
the tool unit comprises a steel pipe fixing module and a steel pipe supporting module, the steel pipe fixing module and the steel pipe supporting module are respectively arranged on the machine tool base in a position-adjustable manner, the steel pipe fixing module comprises a rotating part and a caliper assembly, the rotating part is connected with the caliper assembly and used for driving the caliper assembly to rotate, the caliper assembly is configured to adapt to and clamp steel pipes with different diameters, and the steel pipe supporting module is located between the automatic welding unit and the steel pipe fixing module and used for supporting the steel pipes;
the stabilizing unit is connected with the rotating part, is configured to synchronously move with the caliper assembly and is used for supporting the inner wall of the steel pipe;
and
and the power supply cable unit is connected with the automatic welding unit, the tooling unit and the stabilizing unit and used for supplying power to the automatic welding unit, the tooling unit and the stabilizing unit.
In the implementation process, the tube inner wall surfacing machine tool is used for surfacing the inner wall of the steel tube and can adapt to steel tubes with different sizes. An operator adjusts the steel pipe fixing module to fix one end of the steel pipe to the caliper assembly, the stabilizing unit is placed into the inner wall of the steel pipe from the end opening and supports the inner wall of the steel pipe against the inner wall of the steel pipe, meanwhile, the wall surface of the steel pipe is placed on the steel pipe supporting module, and the steel pipe is horizontal and corresponds to the automatic welding unit; the surfacing gun head can move into the steel pipe by pushing of the pushing mechanism, and performs surfacing on the inner wall of the steel pipe by matching with the work of the rotating part. It should be noted that, the outer wall of steel pipe is fastened by the calliper subassembly, because the existence of firm unit supports the inner wall of steel pipe, so when rotatory steel pipe, can avoid the steel pipe to take place the condition of deformation because of the fastening of calliper subassembly effectively, do benefit to the build-up welding effect of steel pipe inner wall. Meanwhile, the steel pipe fixing module and the steel pipe supporting module are respectively arranged on the machine tool base in a position-adjustable manner, so that the positions of the steel pipe fixing module and the steel pipe supporting module relative to the machine tool base can be adjusted to adapt to steel pipes of different sizes.
Optionally, the caliper assembly comprises a caliper housing, a caliper drive portion and four jaws;
the caliper driving portion is arranged in the caliper shell, four through grooves are formed in the caliper shell, the four through grooves are in a cross shape, the four clamping jaws are slidably arranged in the through grooves respectively, and the four clamping jaws are configured to synchronously perform outward expansion or inward contraction motion by taking the centers of the four through grooves as a reference under the driving of the caliper driving portion so as to clamp or loosen the steel pipe.
In the process of the realization, the caliper assembly is provided with four clamping jaws capable of moving synchronously, when the steel pipe is fixed, the caliper driving part can drive the four clamping jaws to move synchronously, so that the four clamping jaws are accurately clamped on the outer wall of the steel pipe, and the steel pipe is guaranteed to be stably and safely fixed.
Optionally, the caliper driving part comprises a caliper motor, a synchronous transmission mechanism and four slider mechanisms;
a cross sliding groove is formed in the caliper shell, the four sliding block mechanisms are respectively embedded in the cross sliding groove in a sliding manner, the four clamping jaws correspond to the four sliding block mechanisms one by one, and the clamping jaws are fixed on the sliding block mechanisms;
the sliding block mechanisms are provided with power input ends, the four power input ends are sequentially connected through the synchronous transmission mechanisms, the caliper motor is connected with the power input end of one of the sliding block mechanisms and drives the sliding block mechanism to slide in the cross sliding groove, and the rest three sliding block mechanisms synchronously move under the action of the synchronous transmission mechanisms.
In the process of realizing, the structure of the caliper driving part is simple, the caliper motor outputs power, one of the slide block mechanisms is firstly driven, the slide block mechanism synchronously transmits the power to the rest three slide block mechanisms through the synchronous transmission mechanism, and therefore the four slide block mechanisms respectively drive the corresponding clamping jaws to move, and the technical effect of clamping the steel pipe is realized.
Optionally, the sliding block mechanism comprises an eccentric wheel and a fixed sliding block set, the eccentric wheel is rotatably arranged on the caliper housing, and the fixed sliding block set is hinged with the eccentric wheel and slidably embedded in the cross sliding groove;
the eccentric wheel is eccentrically provided with a power input shaft, which is defined as the power input end.
Above-mentioned in-process of realizing, when providing the moment of torsion to the eccentric wheel, the eccentric wheel can eccentric rotation, because fixed slider group receives the cross spout to be spacing, and the articulated relation of connection of cooperation, fixed slider group can only be linear motion to order about its jack catch that corresponds and remove, because the cross spout is the cross, so four jack catches can do the shrink or expand the action outward synchronously.
Optionally, the fixed sliding block set includes a fixed block and a sliding block, the fixed block is connected with the sliding block through a pin, the fixed block is formed with a plurality of pin holes arranged at intervals, and the sliding block is connected with any one of the pin holes through a pin;
the jack catch with the sliding block is connected.
In the process of the realization, the fixing block is provided with the pin holes, so that the total length of the fixing block and the sliding block can be changed by adjusting the sliding block to be connected with any pin hole, and the displacement stroke of the clamping jaw is adjusted to enable the caliper assembly to adapt to steel pipes with more sizes.
Optionally, the surface of the sliding block is formed with three screw holes at intervals, the surface of the jaw is formed with a through hole, and the jaw is connected with any one of the screw holes through a screw.
In the process of realizing, the clamping jaws are connected with any screw hole through screws, so that the displacement stroke of the clamping jaws can be improved, and the caliper assembly is suitable for steel pipes with more sizes.
Optionally, the surface of the jaw is in a step shape and is used for being clamped at the end part of the outer wall of the steel pipe;
and the bottom of the clamping jaw is provided with a bulge which is embedded in the through groove and connected with the sliding block mechanism.
Optionally, the central position of the cross sliding groove is in a through shape;
the stabilizing unit comprises an air pump and a rubber air bag;
the air pump is fixed in the calliper shell, the inside of calliper shell disposes the gas-supply pipe, the rubber gasbag includes fixing base and gasbag expansion body, the fixing base is fixed in the central point of calliper shell puts, the gasbag expansion body is located the central authorities of cross spout, the air pump passes through the gas-supply pipe to gasbag expansion body gas transmission or bleed, the gasbag expansion body be configured to in inflation state under bracing in the inner wall of steel pipe.
The in-process of above-mentioned realization is through ordering about air pump work to input the rubber gasbag, thereby make the inner wall of gasbag expansion body inflation in order to support the steel pipe, make the inner wall and the outer wall stress balance of steel pipe, guarantee the build-up welding effect of steel pipe.
Optionally, the steel pipe fixing module further comprises a first support frame, and the first support frame is adjustably arranged on the machine tool base;
the rotating part is fixed on the first support frame and is in transmission connection with the caliper assembly.
In the process of realizing, the position of the whole steel pipe fixing module is adjusted by adjusting the position of the first support frame, so that the time for adjusting the position can be effectively saved, and the surfacing efficiency is improved. It should be noted that, for example, the first support frame and the machine tool base may adopt the connectivity of the slide rail slider, in order to lock the first support frame and the machine tool base, the first support frame and the machine tool base may be fixed by a bolt after sliding relatively, and if sliding is required, the bolt is unscrewed, so that the joint of the first support frame and the machine tool base is separated and then can slide.
Optionally, the steel pipe support module comprises a second support frame and four support rods;
the four support rods are uniformly arranged around the second support frame at intervals by taking the center of the second support frame as a reference;
the support rod is configured to be adjustable in position relative to the second support frame to support steel pipes of different diameters.
In the process of the realization, the four support rods are used for supporting the steel pipes together, and the relative positions of the support rods and the second support frame can be adjusted by operators due to the fact that the four support rods need to be adapted to the steel pipes with different diameters, so that the support rods can support the steel pipes.
Optionally, the second support frame is formed with four mounting plates, the mounting plates are formed with sleeves, the support rods are slidably inserted into the sleeves, and the support rods are obliquely arranged toward the center of the second support frame;
the bottom of mounting panel is configured with the clamp, the clamp is used for locking the bracing piece.
Above-mentioned in-process of realizing, operating personnel at first loosens the clamp, pulls out the bracing piece and makes the bracing piece slide along the sleeve to adjust the height of bracing piece, finally with clamp locking, guarantee the fixed of bracing piece, make four bracing pieces can support the steel pipe steadily.
Optionally, the support rod is provided with a contact plate, a spring is arranged between the contact plate and the mounting plate, and the spring is used for abutting against the contact plate.
In-process of above-mentioned realization, the bracing piece has the trend that shifts up under the effect of spring to do benefit to when the height of adjusting the bracing piece, make the wall butt of bracing piece and steel pipe fast, improve bracing piece altitude mixture control's efficiency.
Optionally, the machine tool base is formed with a rail, a limiting hole is formed in a side wall of the rail, a pulley is formed at the bottom of the second support frame, a positioning hole is formed in the pulley, and the rail and the pulley pass through the limiting hole and the positioning hole through a positioning pin to be fixed.
Optionally, the automatic welding unit comprises a third support frame, and the third support frame is fixed to the machine tool base;
the pushing mechanism comprises a screw rod, a pushing motor, a screw rod nut and a sliding seat;
the sliding seat is slidably arranged on the third supporting frame, the lead screw nut is arranged on the sliding seat, and the lead screw is matched with the lead screw nut and is in transmission connection with the pushing motor;
the overlaying gun head is arranged on the sliding seat.
In the process of realizing, the pushing motor works and is matched with the lead screw, so that the overlaying gun head can be effectively driven to do linear reciprocating motion, and different positions of the inner wall of the steel pipe are welded.
Optionally, the automatic welding unit further comprises an air cylinder, and the air cylinder is arranged between the overlaying gun head and the sliding seat and used for adjusting the height of the overlaying gun head.
In the implementation process, the height of the surfacing gun head is adjusted through the air cylinder, so that the working range of the surfacing gun head can be enlarged, and the surfacing operation of a steel pipe is facilitated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a front view of a tube inner wall build-up welding machine in the present embodiment;
FIG. 2 is a top view of the tube inner wall overlaying machine tool in the present embodiment;
FIG. 3 is a schematic view of a driving portion of the caliper according to the present embodiment;
FIG. 4 is a schematic view of a steel pipe fixing module according to the present embodiment;
FIG. 5 is a schematic view of the jaws of the present embodiment;
FIG. 6 is a schematic view of a driving portion of the caliper according to the present embodiment;
FIG. 7 is a schematic view of the synchronous drive mechanism of the present embodiment;
fig. 8 is a schematic view of the steel pipe support module according to the present embodiment.
Icon:
10-a machine tool base;
20-an automatic welding unit; 21-overlaying gun heads; 22-a pushing mechanism; 23-a third support; 24-a screw rod; 25-a push motor;
30-a steel pipe fixing module; 31-a rotating part; 32-a caliper assembly; 33-caliper housing; 34-a jaw; 35-a through groove; 36-a caliper motor; 37-a synchronous drive mechanism; 38-a slider mechanism; 39-a cross chute; 40-eccentric wheel; 41-power input shaft; 42-fixed block; 43-a slider; 44-a bump; 45-a first support frame;
50-a steel tube support module; 51-a second support; 52-a support bar; 53-mounting plate; 54-a clamp; 55-an abutment plate; 56-a spring;
70-a stabilizing unit; 71-an air pump; 72-rubber bladder; 73-gas transmission pipe; 74-balloon expandable body.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the indication of the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is conventionally understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated linking machine or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The embodiment provides a tube inner wall build-up welding lathe, can carry out the build-up welding to the inner wall of not unidimensional steel pipe, and protect the interior outer wall of steel pipe simultaneously, avoids the steel pipe to take place to warp at the in-process of build-up welding.
Referring to fig. 1 to 8, fig. 1 is a front view of a tube inner wall surfacing machine tool according to the present embodiment;
FIG. 2 is a top view of the tube inner wall overlaying machine tool in the present embodiment; FIG. 3 is a schematic view of a driving portion of the caliper according to the present embodiment; FIG. 4 is a schematic view of a steel pipe fixing module according to the present embodiment; FIG. 5 is a schematic view of the jaws of the present embodiment; FIG. 6 is a schematic view of a driving portion of the caliper according to the present embodiment; FIG. 7 is a schematic view of the synchronous drive mechanism of the present embodiment; fig. 8 is a schematic view of the steel pipe support module according to the present embodiment.
The tube inner wall surfacing machine tool comprises a machine tool base 10, an automatic welding unit 20, a tool unit, a stabilizing unit 70 and a power supply cable unit.
The automatic welding unit 20 is arranged on the machine tool base 10 and is provided with a surfacing gun head 21 and a pushing mechanism 22, and the pushing mechanism 22 is configured to drive the surfacing gun head 21 to move;
the tool unit comprises a steel pipe fixing module 30 and a steel pipe supporting module 50, the steel pipe fixing module 30 and the steel pipe supporting module 50 are respectively arranged on the machine tool base 10 in a position-adjustable manner, the steel pipe fixing module 30 comprises a rotating portion 31 and a caliper assembly 32, the rotating portion 31 is connected with the caliper assembly 32 and used for driving the caliper assembly 32 to rotate, the caliper assembly 32 is configured to adapt to and clamp steel pipes with different diameters, and the steel pipe supporting module 50 is located between the automatic welding unit 20 and the steel pipe fixing module 30 and used for supporting the steel pipes;
the stabilizing unit 70 is connected to the rotating part 31, configured to move synchronously with the caliper assembly 32, and configured to be supported on an inner wall of the steel pipe;
the power supply cable unit is connected to the automatic welding unit 20, the tooling unit, and the stabilizing unit 70, and is configured to supply power to the automatic welding unit 20, the tooling unit, and the stabilizing unit 70.
In the implementation process, the tube inner wall surfacing machine tool is used for surfacing the inner wall of the steel tube and can adapt to steel tubes with different sizes. An operator adjusts the steel pipe fixing module 30 to fix one end of the steel pipe to the caliper assembly 32, and places the stabilizing unit 70 into the inner wall of the steel pipe from the end opening and supports the inner wall against the steel pipe, and at the same time, places the wall surface of the steel pipe on the steel pipe supporting module 50, and the steel pipe is horizontal and corresponds to the automatic welding unit 20; the build-up welding torch head 21 can be moved into the steel pipe by pushing by the pushing mechanism 22, and build-up welding is performed on the inner wall of the steel pipe in accordance with the operation of the rotating portion 31. It should be noted that, the outer wall of the steel pipe is fastened by the caliper assembly 32, and the inner wall of the steel pipe is supported by the fixing unit 70, so that when the steel pipe is rotated, the steel pipe can be effectively prevented from being deformed due to the fastening of the caliper assembly 32, and the surfacing effect of the inner wall of the steel pipe is facilitated. Meanwhile, the steel pipe fixing module 30 and the steel pipe supporting module 50 are respectively arranged on the machine tool base 10 in a position-adjustable manner, so that the positions of the steel pipe fixing module 30 and the steel pipe supporting module 50 relative to the machine tool base 10 can be adjusted to adapt to steel pipes with different sizes. The rotating portion 31 may be a rotating electric machine.
Optionally, the caliper assembly 32 comprises a caliper housing 33, a caliper drive portion and four jaws 34;
the caliper driving portion is arranged in the caliper shell 33, four through grooves 35 are formed in the caliper shell 33, the four through grooves 35 are in a cross shape, the four clamping jaws 34 are slidably arranged in the through grooves 35 respectively, and the four clamping jaws 34 are configured to synchronously perform outward expansion or inward contraction movement under the driving of the caliper driving portion by taking the centers of the four through grooves 35 as a reference so as to clamp or loosen a steel pipe.
In-process that above-mentioned realized, calliper subassembly 32 has four jack catchs 34 that can synchronous motion, and when fixing the steel pipe, calliper drive division can order about four jack catchs 34 synchronous motion to make four jack catchs 34 accurately joint in the outer wall of steel pipe, guarantee to fix the steel pipe stably, safely.
Alternatively, the caliper driving portion includes a caliper motor 36 (exemplarily indicated by 36 in the drawings), a synchronous transmission mechanism 37, and four slider mechanisms 38;
a cross sliding groove 39 is formed in the caliper shell 33, the four sliding block mechanisms 38 are respectively embedded in the cross sliding groove 39 in a sliding manner, the four clamping jaws 34 correspond to the four sliding block mechanisms 38 one by one, and the clamping jaws 34 are fixed on the sliding block mechanisms 38;
the slide block mechanisms 38 are formed with power input ends, the four power input ends are connected in sequence through the synchronous transmission mechanism 37, the caliper motor 36 is connected with the power input end of one of the slide block mechanisms 38 and drives the slide block mechanism 38 to slide in the cross sliding chute 39, and the remaining three slide block mechanisms 38 move synchronously under the action of the synchronous transmission mechanism 37.
In the implementation process, the structure of the caliper driving part is simple, the caliper motor 36 outputs power, one of the slider mechanisms 38 is firstly transmitted, the slider mechanism 38 transmits the power to the remaining three slider mechanisms 38 synchronously through the synchronous transmission mechanism 37, so that the four slider mechanisms 38 respectively drive the corresponding clamping jaws 34 to move, and the technical effect of clamping the steel pipe at the same time is achieved.
Optionally, the sliding block mechanism 38 includes an eccentric wheel 40 and a fixed sliding block set, the eccentric wheel 40 is rotatably disposed on the caliper housing 33, and the fixed sliding block set is hinged with the eccentric wheel 40 and slidably embedded in the cross sliding groove 39;
the eccentric wheel 40 is eccentrically provided with a power input shaft 41, and the power input shaft 41 defines a power input end.
In the implementation process, when torque is provided for the eccentric wheel 40, the eccentric wheel 40 can eccentrically rotate, the fixed sliding block set is limited by the cross sliding groove 39 and can only do linear motion by matching with the hinged connection relation, so that the corresponding clamping jaws 34 are driven to move, and the cross sliding groove 39 is in a cross shape, so that the four clamping jaws 34 can synchronously do contraction or expansion actions.
It should be noted that the synchronous transmission mechanism 37 may be a synchronous pulley mechanism, the caliper motor 36 transmits power to one of the slider mechanisms 38 through the engagement of gears and gears, three power input pulleys are fixed to a power input shaft 41 of the slider mechanism 38, three pairs of wheels correspond to the three synchronous pulley mechanisms, and an output pulley of each synchronous pulley is fixed to a power output shaft of the other three slider mechanisms 38.
Optionally, the fixed slider group comprises a fixed block 42 and a sliding block 43, the fixed block 42 is connected with the sliding block 43 through a pin, the fixed block 42 is formed with a plurality of pin holes arranged at intervals, and the sliding block 43 is connected with any one of the pin holes through a pin;
the pawl 34 is connected to the slide block 43.
In the above implementation process, since the fixing block 42 has a plurality of pin holes, the adjusting slide block 43 is connected to any one of the pin holes, so that the total length of the fixing block 42 and the slide block 43 can be changed, and the displacement stroke of the jaw 34 can be adjusted, so that the caliper assembly 32 can adapt to steel pipes of more sizes.
Alternatively, the surface of the sliding block 43 is formed with three screw holes at intervals, and the surface of the jaw 34 is formed with a through hole, and the jaw 34 is connected with any one of the screw holes by a screw.
In the implementation process, the clamping jaws 34 are connected with any screw hole through screws, so that the displacement stroke of the clamping jaws 34 can be increased, and the caliper assembly 32 is suitable for steel pipes with more sizes.
Optionally, the surface of the jaw 34 is stepped and is used for being clamped at the end part of the outer wall of the steel pipe;
the claw 34 is formed at the bottom with a protrusion 44 for fitting in the through groove 35 and connecting with the slider mechanism 38.
Optionally, the central position of the cross sliding groove 39 is through;
the stabilizing unit 70 includes an air pump 71 and a rubber air bag 72;
the air pump 71 is fixed to the caliper shell 33, an air pipe 73 is arranged in the caliper shell 33, the rubber air bag 72 comprises a fixed seat and an air bag expansion body 74, the fixed seat is fixed to the center of the caliper shell 33, the air bag expansion body 74 is located in the center of the cross sliding groove 39, the air pump 71 transmits air or extracts air to the air bag expansion body 74 through the air pipe 73, and the air bag expansion body 74 is configured to be supported on the inner wall of the steel pipe in an expansion state.
In the implementation process, the air pump 71 is driven to work to input the rubber air bag 72, so that the air bag expansion body 74 expands to support the inner wall of the steel pipe, the stress of the inner wall and the stress of the outer wall of the steel pipe are balanced, and the surfacing effect of the steel pipe is ensured.
Optionally, the steel pipe fixing module 30 further includes a first support frame 45, and the first support frame 45 is adjustably disposed on the machine tool base 10;
the rotating portion 31 is fixed to the first support bracket 45 and is in driving connection with the caliper assembly 32.
In the implementation process, the position of the whole steel pipe fixing module 30 is adjusted by adjusting the position of the first support frame 45, so that the time for adjusting the position can be effectively saved, and the surfacing efficiency is improved. It should be noted that, for example, the first support frame 45 and the machine tool base 10 may adopt the connectivity of a slide rail slider, in order to lock the first support frame 45 and the machine tool base 10, the two may be fixed by a bolt after relative sliding, if sliding is needed, the bolt is unscrewed, so that the joint of the two is separated, and then the two may slide.
Optionally, the steel pipe support module 50 includes a second support frame 51 and four support bars 52;
the four support rods 52 are uniformly arranged around the second support frame 51 at intervals by taking the center of the second support frame 51 as a reference;
the support rod 52 is configured to be adjustable in position relative to the second support frame 51 to support steel pipes of different diameters.
In the implementation process, the four support rods 52 are used for supporting the steel pipes together, and the support rods 52 and the second support frame 51 can be adjusted in relative positions by an operator due to the fact that the support rods 52 are adapted to the steel pipes with different diameters, so that the support rods 52 can support the steel pipes.
Alternatively, the second support frame 51 is formed with four mounting plates 53, the mounting plates 53 are formed with sleeves, the support rods 52 are slidably inserted into the sleeves, and the support rods 52 are obliquely arranged toward the center of the second support frame 51;
the bottom of the mounting plate 53 is provided with a clip 54, the clip 54 serving to lock the support bar.
In-process of above-mentioned realization, operating personnel at first loosens clamp 54, pulls out bracing piece 52 and makes bracing piece 52 slide along the sleeve to adjust the height of bracing piece 52, finally lock clamp 54, guarantee the fixed of bracing piece 52, make four bracing pieces 52 can support the steel pipe steadily.
Optionally, the support bar 52 is provided with an abutment plate 55, and a spring 56 is provided between the abutment plate 55 and the mounting plate 53, the spring 56 being for abutting against the abutment plate 55.
In the implementation process, the supporting rod 52 has a tendency of moving upwards under the action of the spring 56, so that the supporting rod 52 is enabled to be abutted against the wall surface of the steel pipe quickly when the height of the supporting rod 52 is adjusted, and the height adjusting efficiency of the supporting rod 52 is improved. The end of the support rod 52 is provided with a rolling wheel for rolling contact with the steel pipe.
Alternatively, the machine tool base 10 is formed with a rail, a limit hole is formed in a side wall of the rail, a pulley is formed at the bottom of the second support frame 51, a limit hole is formed in the pulley, and the rail and the pulley are fixed by a positioning pin passing through the limit hole and the limit hole.
Optionally, the automatic welding unit 20 includes a third support 23, and the third support 23 is fixed to the machine tool base 10;
the pushing mechanism 22 comprises a screw rod 24, a pushing motor 25, a screw rod 24 nut and a sliding seat;
the sliding seat is slidably arranged on the third supporting frame 23, a screw rod 24 nut is arranged on the sliding seat, and the screw rod 24 is matched with the screw rod 24 nut and is in transmission connection with a pushing motor 25;
the build-up welding torch head 21 is arranged on a slide.
In the implementation process, the pushing motor 25 works and is matched with the screw rod 24, so that the overlaying gun head 21 can be effectively driven to do linear reciprocating motion, and different positions of the inner wall of the steel pipe are welded.
Optionally, the automatic welding unit 20 further includes an air cylinder disposed between the overlaying gun head 21 and the slide for adjusting the height of the overlaying gun head 21.
In the implementation process, the height of the surfacing gun head 21 is adjusted through the air cylinder, so that the working range of the surfacing gun head 21 can be enlarged, and the surfacing operation of the steel pipe is facilitated.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A tube inner wall build-up welding machine tool is characterized by comprising:
a machine tool base;
the automatic welding unit is arranged on the machine tool base and is provided with a surfacing gun head and a pushing mechanism, and the pushing mechanism is configured to drive the surfacing gun head to move;
the tool unit comprises a steel pipe fixing module and a steel pipe supporting module, the steel pipe fixing module and the steel pipe supporting module are respectively arranged on the machine tool base in a position-adjustable manner, the steel pipe fixing module comprises a rotating part and a caliper assembly, the rotating part is connected with the caliper assembly and used for driving the caliper assembly to rotate, the caliper assembly is configured to adapt to and clamp steel pipes with different diameters, and the steel pipe supporting module is located between the automatic welding unit and the steel pipe fixing module and used for supporting the steel pipes;
the stabilizing unit is connected with the rotating part, is configured to synchronously move with the caliper assembly and is used for supporting the inner wall of the steel pipe;
and
and the power supply cable unit is connected with the automatic welding unit, the tooling unit and the stabilizing unit and used for supplying power to the automatic welding unit, the tooling unit and the stabilizing unit.
2. The pipe inner wall overlaying machine tool according to claim 1,
the caliper assembly comprises a caliper shell, a caliper driving part and four clamping jaws;
the caliper driving portion is arranged in the caliper shell, four through grooves are formed in the caliper shell, the four through grooves are in a cross shape, the four clamping jaws are slidably arranged in the through grooves respectively, and the four clamping jaws are configured to synchronously perform outward expansion or inward contraction motion by taking the centers of the four through grooves as a reference under the driving of the caliper driving portion so as to clamp or loosen the steel pipe.
3. The pipe inner wall overlaying machine tool according to claim 2,
the caliper driving part comprises a caliper motor, a synchronous transmission mechanism and four sliding block mechanisms;
a cross sliding groove is formed in the caliper shell, the four sliding block mechanisms are respectively embedded in the cross sliding groove in a sliding manner, the four clamping jaws correspond to the four sliding block mechanisms one by one, and the clamping jaws are fixed on the sliding block mechanisms;
the sliding block mechanisms are provided with power input ends, the four power input ends are sequentially connected through the synchronous transmission mechanisms, the caliper motor is connected with the power input end of one of the sliding block mechanisms and drives the sliding block mechanism to slide in the cross sliding groove, and the rest three sliding block mechanisms synchronously move under the action of the synchronous transmission mechanisms.
4. The pipe inner wall overlaying machine tool according to claim 3,
the sliding block mechanism comprises an eccentric wheel and a fixed sliding block set, the eccentric wheel is rotatably arranged on the caliper shell, and the fixed sliding block set is hinged with the eccentric wheel and is slidably embedded in the cross sliding groove;
the eccentric wheel is eccentrically provided with a power input shaft, which is defined as the power input end.
5. The pipe inner wall overlaying machine tool according to claim 4,
the fixed sliding block set comprises a fixed block and a sliding block, the fixed block is connected with the sliding block through pins, a plurality of pin holes arranged at intervals are formed in the fixed block, and the sliding block is connected with any one of the pin holes through pins;
the jack catch with the sliding block is connected.
6. The pipe inner wall overlaying machine tool according to claim 3,
the center of the cross sliding groove is in a through shape;
the stabilizing unit comprises an air pump and a rubber air bag;
the air pump is fixed in the calliper shell, the inside of calliper shell disposes the gas-supply pipe, the rubber gasbag includes fixing base and gasbag expansion body, the fixing base is fixed in the central point of calliper shell puts, the gasbag expansion body is located the central authorities of cross spout, the air pump passes through the gas-supply pipe to gasbag expansion body gas transmission or bleed, the gasbag expansion body be configured to in inflation state under bracing in the inner wall of steel pipe.
7. The pipe inner wall overlaying machine tool according to claim 1,
the steel pipe fixing module further comprises a first support frame, and the first support frame is arranged on the machine tool base in an adjustable mode;
the rotating part is fixed on the first support frame and is in transmission connection with the caliper assembly.
8. The pipe inner wall overlaying machine tool according to claim 1,
the steel pipe supporting module comprises a second supporting frame and four supporting rods;
the four support rods are uniformly arranged around the second support frame at intervals by taking the center of the second support frame as a reference;
the support rod is configured to be adjustable in position relative to the second support frame to support steel pipes of different diameters.
9. The pipe inner wall overlaying machine tool according to claim 1,
the automatic welding unit comprises a third support frame, and the third support frame is fixed on the machine tool base;
the pushing mechanism comprises a screw rod, a pushing motor, a screw rod nut and a sliding seat;
the sliding seat is slidably arranged on the third supporting frame, the lead screw nut is arranged on the sliding seat, and the lead screw is matched with the lead screw nut and is in transmission connection with the pushing motor;
the overlaying gun head is arranged on the sliding seat.
10. The pipe inner wall overlaying machine tool according to claim 9,
the automatic welding unit further comprises an air cylinder, and the air cylinder is arranged between the overlaying gun head and the sliding seat and used for adjusting the height of the overlaying gun head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110525033.8A CN113145983A (en) | 2021-05-14 | 2021-05-14 | Build-up welding machine tool for inner wall of pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110525033.8A CN113145983A (en) | 2021-05-14 | 2021-05-14 | Build-up welding machine tool for inner wall of pipe |
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| CN113145983A true CN113145983A (en) | 2021-07-23 |
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| CN202110525033.8A Pending CN113145983A (en) | 2021-05-14 | 2021-05-14 | Build-up welding machine tool for inner wall of pipe |
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Application publication date: 20210723 |