Welding equipment for machining automobile pipe fitting
Technical Field
The invention relates to the field of welding equipment, in particular to welding equipment for machining automobile pipes.
Background
Along with the continuous development of the automobile industry, the types of automobile pipe fittings are continuously increased, when the automobile pipe fittings are machined, the pipe fittings need to be welded, when the traditional automobile pipe fittings are welded, the two pipe fittings are generally simply matched and butted, one of the two pipe fittings is higher or lower easily, the two pipe fittings cannot be accurately positioned on an axis, if the two pipe fittings are not on the axis or one of the pipe fittings has deviation, the product is unqualified after a welding machine, the product can be damaged seriously, rework is carried out, and the welding efficiency is influenced, so that the welding equipment for machining the automobile pipe fittings is provided, and the problem is solved conveniently.
Disclosure of Invention
The invention aims to provide welding equipment for processing automobile pipe fittings, which can respectively adjust the height of the welded pipe fittings, so that the automobile pipe fittings are more accurate in welding, and the welding efficiency is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
the welding equipment for processing the automobile pipe fitting comprises a workbench, a left end positioning mechanism, a right end positioning mechanism and a right end moving mechanism, wherein the left end positioning mechanism and the right end positioning mechanism are symmetrically arranged above the workbench, the left end positioning mechanism is fixedly arranged on the table top of the workbench through a fixed support, the right end moving mechanism is arranged below the right end positioning mechanism, the right end moving mechanism is arranged on the table top of the workbench and comprises a horizontal bottom plate which is horizontally arranged and can move towards the direction of the fixed support, the right end positioning mechanism is arranged on the top of the horizontal bottom plate, the right end positioning mechanism and the left end positioning mechanism are identical in structure, the right end positioning mechanism and the left end positioning mechanism respectively comprise a base, a synchronous driving assembly, a positioning assembly, a feeding positioning assembly and two lifting assemblies, the bases of the right end positioning mechanism and the left end positioning mechanism are respectively and horizontally and fixedly arranged on the top of the fixed support and the horizontal bottom plate, the synchronous driving assembly is arranged between the two lifting assemblies, the insides of the two lifting assemblies are respectively connected with the working end of the synchronous driving assembly in a transmission mode, each lifting assembly is respectively provided with a lifting plate capable of lifting, the positioning assembly is located between the two lifting plates and comprises a fixed transverse plate and two fixtures capable of abutting against pipe fittings, two ends of the fixed transverse plate are respectively fixedly connected with one end of each lifting plate, the two fixtures can move in opposite directions and are arranged below the fixed transverse plate, the feeding positioning assembly is located below the two fixtures, the feeding positioning assembly comprises a feeding rail, the feeding rail is horizontally arranged below the two fixtures, and an avoiding groove used for avoiding the two fixtures to move is formed in the feeding rail.
Preferably, every the lifting component all includes rectangle drive case, the thread loop bar, thread bush tool and interior pole, the drive case is vertical setting on the base, and the bottom of drive case and the top fixed connection of base, the top of drive case is equipped with circularly wearing the mouth, the thread bush tool is the level setting and wears the inside of mouthful in the circular shape, the thread loop bar is the inner circle of vertical setting at the thread bush tool, thread bush tool and thread loop bar threaded connection, the bottom of lifter plate is equipped with first bearing housing, the top of thread loop bar can the pivoted insert the inner circle of locating first bearing housing, the bottom of thread loop bar extends to the inside of drive case, interior pole is the vertical inner circle of locating the thread loop bar that inserts, the both sides of interior pole are equipped with the slip strip, the inside of thread loop bar is equipped with and is used for the gliding sliding tray of every slip strip.
Preferably, every the both sides of lifter plate are equipped with respectively and extend the piece, and the bottom that extends the piece is equipped with the guide bar that is vertical setting respectively, and the top both sides of drive case are equipped with the uide bushing with every guide bar one-to-one, and the inner circle of locating in every uide bushing is inserted that can be gliding respectively to the one end of every guide bar, and when every lifter plate was when the lift removal, the effect of spacing removal was played with the uide bushing to the guide bar that sets up.
Preferably, each synchronous driving assembly comprises a double-shaft motor and two rotating rods, the double-shaft motor is horizontally arranged between two driving boxes, two output ends of the double-shaft motor extend towards each driving box respectively, each rotating rod is horizontally arranged at each working end of the double-shaft motor respectively, one end of each rotating rod is fixedly connected with the working end of the double-shaft motor respectively, two bearing seats are arranged on each rotating rod respectively, one end of each rotating rod can rotatably extend towards the inside of the driving box through an inner ring of each bearing seat, each driving box is provided with an avoidance round opening for avoiding rotation of each rotating rod respectively, the extending end of each rotating rod is provided with first conical teeth respectively, the bottom of each inner rod is provided with an extending column respectively, each extending column is provided with a second bearing sleeve respectively, one end of each extending column can rotatably extend downwards through an inner ring of the second bearing sleeve respectively, the bottom of each extension post is equipped with second conical tooth respectively, and every second conical tooth sets up with first conical tooth meshing respectively.
Preferably, each positioning component further comprises a screw rod motor, a first screw rod and a second screw rod, the first screw rod and the second screw rod are arranged above the fixed transverse plate along a straight line direction, the first screw rod is horizontally arranged, the first screw rod and the second screw rod are reversely arranged, one ends of the first screw rod and the second screw rod adjacent to each other are fixedly connected, one ends of the first screw rod and the second screw rod facing back are respectively provided with a fixed block, one ends of the first screw rod and the second screw rod facing back can be respectively rotatably inserted into each fixed block, the screw rod motor is horizontally arranged at the outer sides of the fixed blocks of the two fixed blocks close to the first screw rod, the output end of the screw rod motor can rotatably penetrate through the fixed block close to the first screw rod to be fixedly connected with one end of the first screw rod, and screw rod sliders are respectively arranged on the first screw rod and the second screw rod, the bottom of each screw rod sliding block extends towards the lower part of the fixed transverse plate respectively, an avoiding notch for avoiding the movement of each screw rod sliding block is arranged on the fixed transverse plate, and the bottom of each screw rod sliding block is fixedly connected with the top of each clamp respectively.
Preferably, each of the two sides of the screw rod sliding block is provided with a limiting sleeve, an inner ring of each limiting sleeve is provided with a limiting rod respectively, each limiting rod is horizontally arranged, and two ends of each limiting rod are fixedly connected with the inner part of the side wall of each fixing block respectively.
Preferably, each feeding positioning assembly is further provided with a material pushing cylinder, the material pushing cylinder is horizontally arranged at one end, far away from the avoidance groove, of the feeding rail, the bottom of the material pushing cylinder is fixedly connected with the top of the feeding rail, the output end of the material pushing cylinder extends towards the direction of the avoidance groove, the output end of the material pushing cylinder is provided with a material pushing block, and the material pushing block is fixedly connected with the output end of the material pushing cylinder.
Preferably, each feeding rail is further provided with a limit stop at one end of the top, which is far away from the material pushing cylinder, and the bottom of the limit stop is fixedly connected with the top of the feeding rail.
Preferably, the right end moving mechanism further comprises two screw rod transmission mechanisms, the two screw rod transmission mechanisms are arranged below the horizontal bottom plate at intervals, each screw rod transmission mechanism is arranged horizontally, the axis of each screw rod transmission mechanism is arranged at a right angle with the axis of each material pushing cylinder, and the working end of each screw rod transmission mechanism is fixedly connected with the bottom of the horizontal bottom plate.
The invention has the beneficial effects that: a welding device for automobile pipe fitting processing is characterized in that when in processing, a pipe fitting is respectively placed on a feeding rail of a left end positioning mechanism and a right end positioning mechanism through manpower or a feeding conveyor, two fixtures of the left end positioning mechanism and the right end positioning mechanism are respectively positioned in an avoiding groove of the feeding rail at the moment, the two fixtures are in a semi-clamping state, a material pushing cylinder is started, the material pushing cylinder pushes the pipe fitting between the two fixtures through a material pushing block, then the material pushing cylinder is reset, when each material pushing cylinder pushes the pipe fitting on the feeding rail through a material pushing plate, a limit stop block is arranged to abut against one end of the pipe fitting for positioning, at the moment, the two fixtures clamp the pipe fitting, when the two fixtures are required to clamp, a lead screw motor is started, the lead screw motor drives a first threaded rod and a second threaded rod to rotate, and because threads of the first threaded rod and the second threaded rod, the two screw rod sliding blocks are arranged and move oppositely on the first screw rod and the second screw rod respectively, and simultaneously drive the two clamps to move oppositely until the pipe fitting is clamped, when each screw rod sliding block moves, the limiting sleeve and the limiting rod are arranged to play a role of limiting movement, after the pipe fitting is clamped on a feeding track through the clamps respectively, the double-shaft motor is started, two working ends of the double-shaft motor respectively drive each rotating rod to rotate, each rotating rod respectively drives each first bevel tooth to rotate, each first bevel tooth respectively drives each second bevel tooth to rotate, each second bevel tooth respectively drives the extension column and the inner rod to rotate, each inner rod rotates and drives the sliding groove on each screw sleeve rod through each sliding strip to rotate each screw sleeve rod, each screw sleeve rod respectively moves upwards through each screw sleeve jig and simultaneously drives each lifting plate to rise, every lifter plate drives fixed diaphragm simultaneously and rises, stop until rising to the position that needs, when every lifter plate is when the lifting movement, the effect of spacing removal is played with the uide bushing to the guide bar that sets up, press from both sides the pipe fitting back through two anchor clamps respectively when left end positioning mechanism and right-hand member positioning mechanism, and when all adjusting the high position that needs, start two lead screw drive machines, the work end of every lead screw drive machine drives respectively on horizontal bottom plate and the right-hand member positioning mechanism by the pipe fitting that two anchor clamps pressed from both sides tight left end positioning mechanism's direction removal, until with two pipe fitting butt joints that press from both sides tightly, weld through the welding machine simultaneously, the height of welded pipe fitting can be adjusted respectively to this equipment, make the car pipe fitting more accurate when the welding, improve welding efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is a side view of an embodiment of the present invention;
FIG. 3 is a top view of an embodiment of the present invention;
FIG. 4 is a schematic perspective view of a left end positioning mechanism according to an embodiment of the present invention;
FIG. 5 is a partial perspective view of a left end positioning mechanism according to an embodiment of the present invention;
FIG. 6 is an enlarged view of the portion A of FIG. 5 according to one embodiment of the present invention;
FIG. 7 is an enlarged view at B of FIG. 5 in accordance with an embodiment of the present invention;
fig. 8 is a schematic perspective view of a feeding positioning assembly according to an embodiment of the present invention;
in the figure: the device comprises a workbench 1, a left end positioning mechanism 2, a right end positioning mechanism 3, a right end moving mechanism 4, a fixed support 5, a horizontal bottom plate 6, a base 7, a synchronous driving assembly 8, a positioning assembly 9, a feeding positioning assembly 10, a lifting assembly 11, a lifting plate 12, a fixed transverse plate 13, a clamp 14, a feeding track 15, an avoidance cutting groove 16, a driving box 17, a threaded sleeve rod 18, a threaded sleeve jig 19, an inner rod 20, a sliding strip 21, a first bearing sleeve 22, an extending block 23, a guide rod 24, a guide sleeve 25, a double-shaft motor 26, a rotating rod 27, a bearing seat 28, a first conical tooth 29, an extending column 30, a second bearing sleeve 31, a second conical tooth 32, a lead screw motor 33, a first threaded rod 34, a second threaded rod 35, a fixed block 36, a lead screw sliding block 37, a limit sleeve 38, a limit rod 39, a material pushing cylinder 40, a material pushing block 41, a limit stop 42 and a lead.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 8, the welding equipment for automobile pipe fitting processing comprises a workbench 1, and further comprises a left end positioning mechanism 2, a right end positioning mechanism 3 and a right end moving mechanism 4, wherein the left end positioning mechanism 2 and the right end positioning mechanism 3 are symmetrically arranged above the workbench 1, the left end positioning mechanism 2 is fixedly arranged on a table top of the workbench 1 through a fixed support 5, the right end moving mechanism 4 is positioned below the right end positioning mechanism 3, the right end moving mechanism 4 is arranged on the table top of the workbench 1, the right end moving mechanism 4 comprises a horizontal bottom plate 6 which is horizontally arranged and can move towards the direction of the fixed support 5, the right end positioning mechanism 3 is arranged on the top of the horizontal bottom plate 6, the right end positioning mechanism 3 and the left end positioning mechanism 2 are identical in structure, and the right end positioning mechanism 3 and the left end positioning mechanism 2 both comprise a base 7, a synchronous driving assembly 8, A positioning component 9, a feeding positioning component 10 and two lifting components 11, wherein the base 7 of the right-end positioning mechanism 3 and the left-end positioning mechanism 2 are respectively horizontally and fixedly arranged on the top of a fixed bracket 5 and a horizontal bottom plate 6, a synchronous driving component 8 is arranged between the two lifting components 11, the insides of the two lifting components 11 are respectively in transmission connection with the working end of the synchronous driving component 8, each lifting component 11 is respectively provided with a lifting plate 12 capable of lifting, the positioning component 9 is arranged between the two lifting plates 12, the positioning component 9 comprises a fixed transverse plate 13 and two clamps 14 capable of abutting against pipe fittings, two ends of the fixed transverse plate 13 are respectively and fixedly connected with one end of each lifting plate 12, the two clamps 14 can be arranged below the fixed transverse plate 13 in a way of moving in opposite directions, the feeding positioning component 10 is arranged below the two clamps 14, the feeding positioning component 10 comprises a feeding track 15, the feeding rail 15 is horizontally arranged below the two clamps 14, and an avoiding cutting groove 16 for avoiding the movement of the two clamps 14 is arranged on the feeding rail 15.
Each lifting component 11 comprises a rectangular driving box 17, a threaded sleeve rod 18, a threaded sleeve jig 19 and an inner rod 20, the driving box 17 is vertically arranged on the base 7, the bottom of the driving box 17 is fixedly connected with the top of the base 7, a circular through hole is formed in the top of the driving box 17, the threaded sleeve jig 19 is horizontally arranged inside the circular through hole, the threaded sleeve rod 18 is vertically arranged on an inner ring of the threaded sleeve jig 19, the threaded sleeve jig 19 is in threaded connection with the threaded sleeve rod 18, a first bearing sleeve 22 is arranged at the bottom of the lifting plate 12, the top of the threaded sleeve rod 18 can be rotatably inserted into the inner ring of the first bearing sleeve 22, the bottom of the threaded sleeve rod 18 extends towards the inside of the driving box 17, the inner rod 20 is vertically inserted into the inner ring of the threaded sleeve rod 18, sliding strips 21 are arranged on two sides of the inner rod 20, a sliding groove for each sliding strip 21 is arranged inside the threaded sleeve rod 18, each inner rod 20 rotates and drives the sliding groove on each threaded sleeve rod 18 through each sliding strip 21 to enable each threaded sleeve rod 18 to rotate, each threaded sleeve rod 18 moves upwards through each threaded sleeve jig 19 respectively and drives each lifting plate 12 to ascend, and each lifting plate 12 drives the fixed transverse plate 13 to ascend simultaneously until the lifting plates ascend to a required position and stop.
Every the both sides of lifter plate 12 are equipped with respectively and extend piece 23, and the bottom that extends piece 23 is equipped with respectively and is the guide bar 24 of vertical setting, and the top both sides of drive box 17 are equipped with the uide bushing 25 with every guide bar 24 one-to-one, and the inner circle of locating in every uide bushing 25 can be slided respectively to the one end of every guide bar 24, and when every lifter plate 12 was when lifting movement, the effect of spacing removal was played with uide bushing 25 to the guide bar 24 that sets up.
Each synchronous driving component 8 comprises a double-shaft motor 26 and two rotating rods 27, the double-shaft motor 26 is horizontally arranged between the two driving boxes 17, two output ends of the double-shaft motor 26 extend towards the direction of each driving box 17 respectively, each rotating rod 27 is horizontally arranged at each working end of the double-shaft motor 26 respectively, one end of each rotating rod 27 is fixedly connected with the working end of the double-shaft motor 26 respectively, two bearing seats 28 which are arranged at intervals are arranged on each rotating rod 27 respectively, one end of each rotating rod 27 can penetrate through the inner ring of each bearing seat 28 to extend towards the inside of the driving box 17 in a rotating manner respectively, each driving box 17 is provided with an avoiding round mouth for avoiding the rotation of each rotating rod 27 respectively, the extending end of each rotating rod 27 is provided with a first conical tooth 29 respectively, the bottom of each inner rod 20 is provided with an extending column 30 respectively, each extending column 30 is provided with a second bearing sleeve 31 respectively, one end of each extension column 30 can be the pivoted inner circle downwardly extending who passes second bearing housing 31 respectively, the bottom of each extension column 30 is equipped with second taper tooth 32 respectively, every second taper tooth 32 sets up with first taper tooth 29 meshing respectively, after the pipe fitting passes through anchor clamps 14 respectively and presss from both sides tightly on feeding track 15, start biaxial motor 26 afterwards, two work ends of biaxial motor 26 drive every rotary rod 27 respectively rotatory, every rotary rod 27 drives every first taper tooth 29 rotation respectively, every first taper tooth 29 drives every second taper tooth 32 rotation respectively, every second taper tooth 32 drives extension column 30 and interior pole 20 rotation respectively.
Each positioning component 9 further comprises a screw rod motor 33, a first threaded rod 34 and a second threaded rod 35, the first threaded rod 34 and the second threaded rod 35 are arranged above the fixed transverse plate 13 along the linear direction, the first threaded rod 34 is horizontally arranged while the second threaded rod 35 is horizontally arranged, the first threaded rod 34 and the second threaded rod 35 are reversely arranged, the adjacent ends of the first threaded rod 34 and the second threaded rod 35 are fixedly connected, the back ends of the first threaded rod 34 and the second threaded rod 35 are respectively provided with a fixed block 36, the back ends of the first threaded rod 34 and the second threaded rod 35 can be respectively and rotatably inserted into each fixed block 36, the screw rod motor 33 is horizontally arranged at one side of one fixed block 36 of the two fixed blocks 36, and the output end of the screw rod motor 33 can rotatably penetrate through one fixed block 36 and is fixedly connected with one end of the first threaded rod, the first threaded rod 34 and the second threaded rod 35 are respectively provided with a screw rod sliding block 37, the bottom of each screw rod sliding block 37 extends below the fixed transverse plate 13, the fixed transverse plate 13 is provided with an avoiding notch for avoiding the movement of each screw rod sliding block 37, the bottom of each screw rod sliding block 37 is fixedly connected with the top of each clamp 14, when two clamps 14 are required to clamp, the screw rod motor 33 is started, the screw rod motor 33 drives the first threaded rod 34 and the second threaded rod 35 to rotate, because the threads of the first threaded rod 34 and the second threaded rod 35 are arranged in a reverse direction, the two screw rod sliding blocks 37 are arranged and move in opposite directions on the first threaded rod 34 and the second threaded rod 35 respectively, and the two clamps 14 are driven to move in opposite directions simultaneously until the pipe fittings are clamped.
Every the both sides of lead screw slider 37 all are equipped with stop collar 38, and the inner circle of every stop collar 38 is equipped with gag lever post 39 respectively, and every gag lever post 39 all is the level setting, and the both ends of every gag lever post 39 respectively with the inside fixed connection of lateral wall of every fixed block 36, when every lead screw slider 37 removed, the gag lever post 38 and the gag lever post 39 that set up played the effect of spacing removal.
Each feeding positioning assembly 10 is further provided with a material pushing cylinder 40, the material pushing cylinder 40 is horizontally arranged at one end of the feeding rail 15 far away from the avoiding cutting groove 16, the bottom of the material pushing cylinder 40 is fixedly connected with the top of the feeding rail 15, the output end of the material pushing cylinder 40 extends towards the direction of the avoiding cutting groove 16, the output end of the material pushing cylinder 40 is provided with a material pushing block 41, the material pushing block 41 is fixedly connected with the output end of the material pushing cylinder 40, when in processing, the pipe fittings are respectively placed on the material loading rails 15 of the left end positioning mechanism 2 and the right end positioning mechanism 3 through manual work or a material loading conveyor, at this time, the two clamps 14 of the left end positioning mechanism 2 and the right end positioning mechanism 3 are respectively positioned in the avoiding cutting groove 16 of the feeding rail 15, the two clamps 14 are in a half-clamping state, the pushing cylinder 40 is started, the pushing cylinder 40 pushes the pipe fitting between the two clamps 14 through the pushing block 41, and then the pushing cylinder 40 resets.
Each end, far away from the top of the material pushing cylinder 40, of the material loading rail 15 is further provided with a limit stop 42, the bottom of each limit stop 42 is fixedly connected with the top of the material loading rail 15, when each material pushing cylinder 40 pushes a pipe fitting on the material loading rail 15 through a material pushing plate, the set limit stop 42 abuts against one end of the pipe fitting to position, and at the moment, the two clamps 14 clamp the pipe fitting tightly.
The right moving mechanism 4 further comprises two screw rod transmission mechanisms 43, the two screw rod transmission mechanisms 43 are arranged below the horizontal bottom plate 6 at intervals, each screw rod transmission mechanism 43 is arranged horizontally, the axis of each screw rod transmission mechanism 43 is respectively the same as the axis of each material pushing cylinder 40, the working end of each screw rod transmission mechanism 43 is respectively fixedly connected with the bottom of the horizontal bottom plate 6, after the left end positioning mechanism 2 and the right end positioning mechanism 3 clamp the pipe fitting through the two clamps 14 respectively, and when the required height position is adjusted, the two screw rod transmission mechanisms 43 are started, the working end of each screw rod transmission mechanism 43 respectively drives the pipe fittings clamped by the two clamps 14 on the horizontal bottom plate 6 and the right end positioning mechanism 3 to move towards the left end positioning mechanism 2 until the two clamped pipe fittings are butted, and meanwhile, welding is carried out through a welding machine.
The working principle is as follows: when in processing, the pipe fittings are respectively placed on the feeding rails 15 of the left end positioning mechanism 2 and the right end positioning mechanism 3 through manual work or a feeding conveyor, at the moment, the two clamps 14 of the left end positioning mechanism 2 and the right end positioning mechanism 3 are respectively positioned in the avoiding cutting grooves 16 of the feeding rails 15, the two clamps 14 are in a semi-clamping state, the material pushing cylinder 40 is started, the material pushing cylinder 40 pushes the pipe fittings to be positioned between the two clamps 14 through the material pushing block 41, then the material pushing cylinder 40 is reset, when each material pushing cylinder 40 pushes the pipe fittings on the feeding rails 15 through the material pushing plate, the arranged limit stop 42 is abutted against one end of the pipe fittings for positioning, at the moment, the two clamps 14 clamp the pipe fittings, but when the two clamps 14 are required to clamp, the lead screw motor 33 is started, the lead screw motor 33 drives the first threaded rod 34 and the second threaded rod 35 to rotate, because the threads of the first threaded rod 34 and the second, the two screw rod sliding blocks 37 are arranged and move oppositely on the first screw rod 34 and the second screw rod 35 respectively, and simultaneously drive the two clamps 14 to move oppositely until the pipe fitting is clamped, when each screw rod sliding block 37 moves, the limiting sleeve 38 and the limiting rod 39 are arranged to play a role of limiting movement, when the pipe fitting is clamped on the feeding track 15 through the clamps 14 respectively, the double-shaft motor 26 is started, two working ends of the double-shaft motor 26 drive each rotating rod 27 to rotate respectively, each rotating rod 27 drives each first bevel gear 29 to rotate respectively, each first bevel gear 29 drives each second bevel gear 32 to rotate respectively, each second bevel gear 32 drives the extending column 30 and the inner rod 20 to rotate respectively, each inner rod 20 rotates and drives a sliding groove on each screw sleeve 18 through each sliding strip 21 to rotate each screw sleeve 18, each screw sleeve 18 moves upwards through each screw sleeve jig 19 respectively, and simultaneously driving each lifting plate 12 to rise, each lifting plate 12 simultaneously drives the fixed transverse plate 13 to rise until the lifting plates rise to a required position and stop, when each lifting plate 12 moves up and down, the arranged guide rods 24 and the guide sleeves 25 play a role in limiting movement, when the left end positioning mechanism 2 and the right end positioning mechanism 3 respectively clamp the pipe fittings through the two clamps 14 and adjust to the required height position, the two screw rod transmission mechanisms 43 are started, the working end of each screw rod transmission mechanism 43 respectively drives the pipe fittings clamped by the two clamps 14 on the horizontal bottom plate 6 and the right end positioning mechanism 3 to move towards the left end positioning mechanism 2 until the two clamped pipe fittings are butted, and meanwhile, welding is carried out through a welding machine.
It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.