CN119175489B

CN119175489B - Hydraulic cylinder welding device based on cylinder barrel positioning

Info

Publication number: CN119175489B
Application number: CN202411686301.4A
Authority: CN
Inventors: 任翊豪; 张东强; 吕伟涛; 宫尚敏; 秦岭军
Original assignee: Laizhou Xingda Hydraulic Machinery Technology Co ltd
Current assignee: Laizhou Xingda Hydraulic Machinery Technology Co ltd
Priority date: 2024-11-25
Filing date: 2024-11-25
Publication date: 2025-03-11
Anticipated expiration: 2044-11-25
Also published as: CN119175489A

Abstract

The application discloses a hydraulic cylinder welding device based on cylinder positioning, which relates to the field of welding equipment and comprises a supporting seat for supporting a cylinder, a limiting plate, a driving ring and a pressing rod, wherein a clamping seat for positioning the cylinder is arranged above the supporting seat, the limiting plate is arranged above the clamping seat and moves along with the clamping seat, the limiting plate is provided with a positioning block, the positioning block is provided with a guide groove along the direction of the axis of the limiting plate, the driving ring is in sliding connection with the positioning block along the length direction of the guide groove, the upper end part of the positioning block is rotationally connected with a moving ring, the moving ring is in threaded connection with the driving ring, the pressing rod is vertically arranged in the guide groove, a plurality of swinging rods are arranged between the pressing rod and the positioning block, one end of each swinging rod is vertically hinged with the positioning block, the other end of each swinging rod is vertically hinged with the pressing rod, the driving ring is vertically hinged with a push rod, and one end of each push rod, which is far away from the driving ring, is hinged with the pressing rod. The application has the effect of improving the convenience when the oil nozzle is welded on the outer side of the circular cylinder barrel.

Description

Hydraulic cylinder welding device based on cylinder barrel positioning

Technical Field

The invention relates to the field of welding equipment, in particular to a hydraulic cylinder welding device based on cylinder positioning.

Background

The hydraulic cylinder mainly comprises a piston rod and a cylinder barrel positioned at the outer side of the piston rod, wherein the cylinder barrel is mainly used for providing support and power for the movement of the piston rod, and the outer side of the cylinder barrel is required to be assembled with mounting structures such as a flange seat, a lifting lug, a base and the like in a welding mode, and is used for connecting parts such as a nozzle tip and the like of an external oil way. In order to improve the welding precision of the parts and reduce the probability of offset of the parts in the welding process, the welded parts and the cylinder barrel are required to be positioned by a positioning device when the parts are welded.

The related art can refer to the chinese patent with publication number CN219005009U and discloses a welding device convenient to location, the device includes bottom plate and welder, fixed mounting has the riser on the bottom plate, fixed mounting has electric telescopic column on the riser, electric telescopic column output shaft end fixed mounting has the fly leaf, the welding gun rotates and sets up on the fly leaf, fixed mounting has electric telescopic pole on the fly leaf, electric telescopic pole output shaft end fixed mounting has the mounting box, be provided with the fixed establishment who is used for fixed glib talker in the mounting box, fixed mounting has the cylinder on the bottom plate, fixed mounting has the fixed plate on the cylinder output shaft, fixed mounting has the baffle on the bottom plate, when welding cylinder glib talker, fix the glib talker automatically through mounting box and locating piece, fixed effect is good, the practicality is strong, can fix the glib talker of equidimension not, the suitability is strong.

To the relevant technique among the above-mentioned, before carrying out the welding, fix the back cylinder through the fixed plate and be in static state to the cylinder, when fixed glib, need make all rubber blocks stretch into in the glib inner wall to through lead screw and ejector pad cooperation, drive all movable blocks and keep away from each other, make the rubber block and glib inner wall hug closely the back and fix a position the glib, afterwards drive the glib removal through the movable plate, but when the excircle of cylinder is the arc, the side of glib connection cylinder also need be equipped with the arc recess, when welding the glib, need make the arc recess and the cylinder body excircle coaxial of glib. But carry out the back to the glib through supporting piece and rubber piece, the glib is in the state relatively static with the installation box, drives glib and cylinder contact back through the fly leaf, if the arc recess of glib is not laminated with the cylinder excircle, just need loosen the location to the glib through driving piece rubber piece again, after adjusting the position to the glib again, still need press from both sides tight location to the glib again, lead to comparatively inconvenient when welding the glib.

Disclosure of Invention

In order to improve convenience in welding a nozzle tip on the outer side of a circular cylinder barrel, the application provides a cylinder barrel positioning-based hydraulic cylinder welding device.

The application provides a hydraulic cylinder welding device based on cylinder barrel positioning, which adopts the following technical scheme:

The hydraulic cylinder welding device based on cylinder positioning comprises a supporting seat, a clamping seat, a limiting plate, a positioning rod, a driving ring, a pushing rod, a pressing rod and a driving ring, wherein the upper end of the supporting seat is provided with a positioning groove for placing a cylinder, the clamping seat is positioned at one end of the positioning groove in the length direction and is in sliding connection with the supporting seat in the length direction of the positioning groove, a positioning assembly is arranged on the clamping seat, the cylinder is positioned by the clamping seat through the positioning assembly when the cylinder is positioned in the positioning groove, the limiting plate is positioned at the upper end of the clamping seat and moves along with the clamping seat, the upper end of the limiting plate is arc-shaped, the limiting plate is coaxial with the cylinder when the cylinder is positioned in the positioning groove, the limiting plate is in sliding connection with the positioning block in the length direction, the positioning block is provided with a guide groove in the direction pointing to the axis of the limiting plate, the driving ring is positioned at the upper end of the positioning block and is in sliding connection with the positioning block in the length direction of the guide groove, the moving ring is sleeved outside the driving ring and is in threaded connection with the driving ring, a pressing rod is vertically arranged in the guide groove, a plurality of swinging rods are arranged between the pressing rod and the positioning block, one ends of the swinging rods are vertically hinged with the pressing rod, the other ends are vertically hinged with the pressing rod, and the driving ring are vertically hinged with the pressing rod and the corresponding one end is hinged with the pressing rod is far from the driving ring.

Through adopting above-mentioned technical scheme, under the initial condition, the clamping seat is located the position of keeping away from the constant head tank, after putting into the constant head tank with the cylinder, the supporting seat supports and spacing to the displacement of cylinder along circumference through the constant head tank, will press from both sides the clamping seat and remove to the cylinder for press from both sides the clamping seat and press from both sides tight location to the cylinder through locating component. When the clamping seat moves, the limiting plate is driven to move to the upper portion of the cylinder barrel, the limiting plate is driven to move, the displacement of the limiting plate and the positioning block is preset according to the installation position of the oil nozzle, and when the positioning assembly clamps the cylinder barrel, the guide groove of the positioning block is opposite to the installation position of the oil nozzle of the cylinder barrel. Placing the oil nozzle from top to bottom along the guide groove to the cylinder barrel, attaching the arc-shaped groove of the oil nozzle to the outer circle of the cylinder barrel under the action of gravity, wherein the diameter of the guide groove is larger than the outer diameter of the oil nozzle, and further facilitating fine adjustment of the position of the oil nozzle. The drive ring is in the position of keeping away from the locating piece in the initial stage, and all hold-down bars are kept away from each other this moment, are in all hold-down bars below when the glib is in suitable welding position, rotate the removal ring for the removal ring drives the drive ring and is close to the glib, and the drive ring passes through the push rod and drives the hold-down bar and remove, and under the connecting action of corresponding pendulum rod, all hold-down bars are close to each other, and when its lower tip is close to glib upper end, hold-down bar compresses tightly the location to the glib when contacting with the glib, and then is convenient for weld the glib. Before the positioning of the oil nozzle, the oil nozzle is positioned at a proper position through the positioning block and the guide groove, so that the oil nozzle is not required to be clamped and positioned for the second time, and the convenience of welding the oil nozzle on the outer side of the circular cylinder barrel is improved.

Optionally, the locating piece lower tip is equipped with a plurality of locating plates, and a plurality of locating plates set up along guide way circumference, and all locating plates all are provided with perpendicularly and adjust the pole, adjust the pole and pass the locating plate and along axis direction and locating plate sliding connection, adjust the pole and be close to the direction of driving ring axis and set firmly the butt piece, be equipped with the elastic component between pole and the locating plate, when the elastic component is in natural state, have the space between butt piece and the locating plate.

Through adopting above-mentioned technical scheme, be in between a plurality of locating plates when glib and cylinder contact, and be in the middle of all butt pieces, the elastic component is used for fixing a position the adjusting lever, when glib is not in suitable welding position, removes the regulation pole for it promotes glib removal through the butt piece to adjust the pole, and then is convenient for finely tune the position of glib.

Optionally, the one end that is close to the butt piece of regulation pole is equipped with the external screw thread, and regulation pole threaded connection has the butt ring, and the butt ring is located the locating plate back of the body and leaves the one side of elastic component and with the locating plate butt.

Through adopting above-mentioned technical scheme, the butt ring cooperates with the locating plate and carries out spacing to the regulating lever, and then the initial position of restriction butt piece to adjust the initial distance between butt piece and the glib, improve the guide effect to the glib.

Optionally, all the upper end portions of the positioning plates penetrate through the positioning blocks and are in sliding connection with the positioning blocks, a plurality of clamping grooves are formed in the positioning plates along the length direction, and clamping blocks corresponding to the clamping grooves are in sliding connection with the upper end portions of the positioning blocks along the direction perpendicular to the positioning plates.

Through adopting above-mentioned technical scheme, when locating plate, regulation pole and butt piece occupy the operation space of welding gun, move the locating plate along vertical to carry out spacingly to the locating plate through the cooperation of draw-in groove and fixture block, and then make the locating plate drive regulation pole, butt piece dodge the welding gun.

Optionally, locating component includes two-way lead screw, two tensioning pieces and two movable blocks, the clamping seat upper end is equipped with the support column, the support column is coaxial with the limiting plate, two-way lead screw sets up along support column length direction, and with support column threaded connection, two movable blocks are located two ends of two-way lead screw respectively and with two-way lead screw threaded connection, the movable block is along support column length direction and support column sliding connection, two tensioning pieces are located the support column respectively along width direction's both sides, be equipped with the articulated lever between movable block and the tensioning piece, the one end and the movable block of articulated lever are articulated, the other end is articulated with the tensioning piece.

Through adopting above-mentioned technical scheme, when the cylinder is located the constant head tank, the support column is coaxial with the cylinder, will press from both sides tight seat and remove to the cylinder for the support column drives the tensioning piece and gets into in the cylinder, and under the initial state, two tensioning pieces all are in the position that is close to, after the tensioning piece gets into the cylinder, rotates two-way lead screw, makes two-way lead screw drive two movable blocks and removes, and the movable block drives the tensioning piece through the articulated lever and keeps away from the support column and laminate with the cylinder inner wall, and then with the rotation of constant head tank cooperation restriction cylinder along circumference, improves the positioning effect to the cylinder.

Optionally, the supporting seat upper end has set firmly a support section of thick bamboo, and a support sleeve cover is located the support column outside and is connected with the support column rotation, and the support column outside coaxial is fixed with the worm wheel, and the support sleeve rotates and is connected with the worm with worm wheel meshing.

Through adopting above-mentioned technical scheme, under the supporting role of supporting the section of thick bamboo, when rotating the worm, the worm drives the back shaft through the meshing effect with the worm wheel and rotates, after the tensioning piece presss from both sides tightly the cylinder, drives the cylinder and rotates when the back shaft rotates, and then is convenient for adjust the cylinder.

Optionally, limiting plate is along length direction's tip fixedly connected with sliding block, presss from both sides tight seat upper end along length direction and has seted up the spout that corresponds with the sliding block, and the sliding block is located the spout and along spout length direction and press from both sides tight seat sliding connection, presss from both sides tight seat along spout length direction rotation and is connected with the threaded rod, and the threaded rod passes the sliding block and with sliding block threaded connection.

Through adopting above-mentioned technical scheme, press from both sides tight seat and carry out spacing and direction to the sliding block through the spout, when rotating the threaded rod, the threaded rod promotes the sliding block and removes along the spout, and then is convenient for adjust the position of limiting plate.

Optionally, be equipped with a plurality of bracing pieces in the constant head tank, the bracing piece sets up along the constant head tank circumference, the bracing piece is along the equal fixedly connected with of both ends of length direction sliding block, press from both sides the tight seat along being close to or keeping away from the direction of limiting plate axis and offered the movable tank with the constant head tank intercommunication, the sliding block is located the movable tank and along movable tank length direction and press from both sides tight seat sliding connection, the bracing piece is equipped with a plurality of supporting wheels along length direction, the supporting wheel rotates with the bracing piece to be connected, it has the backup pad to press from both sides tight seat to dismantle, the backup pad is located one side that all bracing pieces deviate from the limiting plate axis to contradict with all bracing pieces.

Through adopting above-mentioned technical scheme, press from both sides tight seat and carry out spacing and direction to the slider through the removal groove, and then make the slider remove along removal groove length direction, the position of the bracing piece of being convenient for. Simultaneously, press from both sides tight seat and support the bracing piece through the backup pad, the bracing piece supports and spacing through supporting wheel pair cylinder, is favorable to improving the convenience when rotating the cylinder, when needing processing different grade type cylinder, change the backup pad of different diameters can, be favorable to improving the suitability of supporting seat.

In summary, the present application includes at least one of the following beneficial technical effects:

1. Under the initial condition, the clamping seat is located the position of keeping away from the constant head tank, after putting into the constant head tank with the cylinder, the supporting seat supports and spacing to the displacement of cylinder along circumference through the constant head tank, will press from both sides the clamping seat and remove to the cylinder for press from both sides the clamping seat and press from both sides tight location to the cylinder through locating component. When the clamping seat moves, the limiting plate is driven to move to the upper portion of the cylinder barrel, the limiting plate is driven to move, the displacement of the limiting plate and the positioning block is preset according to the installation position of the oil nozzle, and when the positioning assembly clamps the cylinder barrel, the guide groove of the positioning block is opposite to the installation position of the oil nozzle of the cylinder barrel. Placing the oil nozzle from top to bottom along the guide groove to the cylinder barrel, attaching the arc-shaped groove of the oil nozzle to the outer circle of the cylinder barrel under the action of gravity, wherein the diameter of the guide groove is larger than the outer diameter of the oil nozzle, and further facilitating fine adjustment of the position of the oil nozzle. The drive ring is in the position of keeping away from the locating piece in the initial stage, and all hold-down bars are kept away from each other this moment, are in all hold-down bars below when the glib is in suitable welding position, rotate the removal ring for the removal ring drives the drive ring and is close to the glib, and the drive ring passes through the push rod and drives the hold-down bar and remove, and under the connecting action of corresponding pendulum rod, all hold-down bars are close to each other, and when its lower tip is close to glib upper end, hold-down bar compresses tightly the location to the glib when contacting with the glib, and then is convenient for weld the glib. Before the positioning of the oil nozzle, the oil nozzle is positioned at a proper position through the positioning block and the guide groove, so that the oil nozzle is not required to be clamped and positioned for the second time, and the convenience of welding the oil nozzle on the outer side of the circular cylinder barrel is improved;

2. The oil nozzle is in between a plurality of locating plates when contacting with the cylinder barrel, and is in the middle of all the butt blocks, the elastic component is used for locating the adjusting rod, when the oil nozzle is not in proper welding position, the adjusting rod is moved, so that the adjusting rod pushes the oil nozzle to move through the butt blocks, and fine adjustment is carried out on the position of the oil nozzle.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the embodiment.

Fig. 2 is a schematic view intended to highlight the structure of the support bar.

Fig. 3 is a schematic view intended to highlight the composition of the positioning assembly.

Fig. 4 is a schematic view for highlighting the connection structure of the limiting plate and the positioning block.

Fig. 5 is a schematic view for highlighting the connection structure of the pressing rod and the positioning block.

The reference numerals are 1, a supporting seat, 11, a positioning groove, 12, a supporting rod, 121, a supporting wheel, 13, a sliding block, 14, a moving groove, 15, a supporting plate, 2, a clamping seat, 21, a positioning assembly, 211, a bi-directional screw rod, 212, a tensioning block, 213, a moving block, 214, a hinging rod, 22, a supporting column, 221, a worm wheel, 23, a supporting cylinder, 231, a worm, 24, a sliding groove, 241, a threaded rod, 3, a limiting plate, 31, a positioning block, 311, a guiding groove, 312, a swinging rod, 313, a clamping block, 32, a driving ring, 33, a moving ring, 331, a push rod, 34, a pressing rod, 35, a positioning plate, 351, an adjusting rod, 352, an abutting block, 353, an elastic piece, 354, an abutting ring, 355, a clamping groove, 36 and a sliding block.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses a hydraulic cylinder welding device based on cylinder positioning.

Examples:

Referring to fig. 1 and 2, a hydraulic cylinder welding device based on cylinder positioning includes a support base 1, a clamping base 2, and a limiting plate 3. The constant head tank 11 has been seted up along length direction to supporting seat 1 upper end, is equipped with a plurality of bracing pieces 12 in the constant head tank 11, and a plurality of bracing pieces 12 are the arc setting along the constant head tank 11 side, and all bracing pieces 12 all are equipped with a plurality of supporting wheels 121 along length direction, and supporting wheels 121 and bracing piece 12 rotate to be connected, and the supporting wheels 121 on two arbitrary adjacent bracing pieces 12 are crisscross each other, drive supporting wheels 121 when bracing piece 12 removes and remove.

Referring to fig. 1 and 2, all the support rods 12 are distributed about the same axis, which is set as the central axis. When the cylinder is placed in the positioning groove 11, all the support rods 12 are matched with the support wheels 121 to support the cylinder, and at the moment, the axis of the cylinder is coaxial with the central axis. The bracing piece 12 has all set firmly slider 13 along length direction's both ends, drives slider 13 when bracing piece 12 removes and removes, and the supporting seat 1 has seted up the removal groove 14 with slider 13 one-to-one, and the removal groove 14 sets up along the direction that is close to or keeps away from the central axis, and slider 13 is located removal groove 14 and along removal groove 14 length direction and clamping seat 2 sliding connection.

Referring to fig. 1 and 2, the clamping seat 2 limits the sliding block 13 through the moving groove 14, so as to facilitate the adjustment of the positions of the supporting rod 12 and the supporting wheel 121, so as to be suitable for cylinders with different diameters. The clamping seat 2 is provided with a supporting plate 15, the supporting plate 15 is located on one side, deviating from the central axis, of all the supporting rods 12, the supporting plate 15 is in conflict with all the supporting rods 12, the supporting plate 15 is provided with a fixing bolt, the fixing bolt penetrates through the supporting plate 15 to be in threaded connection with the clamping seat 2, the clamping seat 2 limits the supporting rods 12 through the supporting plate 15, and further the trend, away from the central axis, of the supporting rods 12 is limited. The structure of the support plate 15 is set along with the position of the support rod 12, and the support plate 15 is replaced by disassembling the fixing bolt when the support rod 12 is adjusted.

Referring to fig. 1 and 3, the clamping seat 2 is located at the upper end of the supporting seat 1 and is slidably connected with the clamping seat 2 along the length direction of the positioning groove 11, a positioning assembly 21 is arranged at the upper end of the clamping seat 2, the positioning assembly 21 comprises a bidirectional screw rod 211, two tensioning blocks 212 and two moving blocks 213, a supporting cylinder 23 is fixedly arranged at the upper end of the clamping seat 2, the supporting cylinder 23 is rotationally connected with a supporting column 22, the axis of the supporting column 22 is coaxial with the central axis, and the supporting column 22 is driven to move by the supporting cylinder 23 when the clamping seat 2 moves. The support column 22 is coaxially and fixedly provided with a worm wheel 221, the support sleeve is rotatably connected with a worm 231 meshed with the worm wheel 221, and when the worm 231 is rotated, the worm 231 drives the support column 22 to rotate through the cooperation with the worm wheel 221.

Referring to fig. 1 and 3, the bi-directional screw rod 211 is parallel to the support column 22 and is rotatably connected with the support column 22, the support column 22 drives the bi-directional screw rod 211 to move when moving, two moving blocks 213 are located at one end of the support column 22 near the positioning groove 11, and two moving blocks 213 are located at two ends of the bi-directional screw rod 211, respectively, and the bi-directional screw rod 211 passes through the moving blocks 213 and is in threaded connection with the moving blocks 213. The moving blocks 213 are slidably connected with the support columns 22 along the length direction of the support columns 22, and under the limiting effect of the support columns 22, the two moving blocks 213 are driven to be close to or far away from each other when the bidirectional screw 211 rotates.

Referring to fig. 1 and 3, two tensioning blocks 212 are respectively located at both sides of the support column 22, a hinge rod 214 is provided between the moving block 213 and the tensioning block 212, one end of the hinge rod 214 is hinged with the moving block 213, and the other end is connected with the tensioning block 212. When the cylinder barrel needs to be positioned, the clamping seat 2 drives the two tensioning blocks 212 to enter the cylinder barrel through the supporting column 22, at the moment, the two tensioning blocks 212 are positioned at positions close to the supporting column 22, the bidirectional screw rod 211 is rotated, the bidirectional screw rod 211 drives the two moving blocks 213 to be close to each other, the tensioning blocks 212 are pushed to be far away from the supporting column 22 through the hinging rod 214 when the moving blocks 213 move, and when the two tensioning blocks 212 are in contact with the inner wall of the cylinder barrel, the cylinder barrel is positioned, and further rotation of the cylinder barrel along the circumferential direction is limited.

Referring to fig. 1 and 3, when the cylinder needs to be adjusted, the worm 231 is rotated, so that the worm 231 drives the support column 22 to rotate through the meshing action with the worm wheel 221, and the support column 22 drives the cylinder to rotate through the hinge rod 214 and the tensioning block 212, so that the cylinder is convenient to adjust. The cylinder barrel is in rolling connection with the supporting wheel 121, and when the cylinder barrel rotates, the supporting wheel 121 is driven to rotate, so that friction between the cylinder barrel and the supporting rod 12 is reduced. And meanwhile, the supporting wheels 121 isolate the cylinder barrel from the supporting rods 12, so that the probability that the protruding structures on the outer side of the cylinder barrel interfere with the supporting rods 12 when the cylinder barrel rotates is reduced.

Referring to fig. 1 and 4, the limiting plate 3 is located at the upper end of the clamping seat 2, the limiting plate 3 is arc-shaped and coaxial with the central axis, a sliding block 36 is fixedly connected to one end of the limiting plate 3 along the length direction, a sliding groove 24 is formed in the upper end of the clamping seat 2 along the length direction, and the sliding block 36 is located in the sliding groove 24 and is in sliding connection with the clamping seat 2 along the length direction of the sliding groove 24. The clamping seat 2 is provided with a threaded rod 241 along the length of the chute 24, the threaded rod 241 passing through the slider 36 and being screwed with the slider 36.

Referring to fig. 1 and 4, the clamping seat 2 limits the sliding block 36 through the threaded rod 241, so that the sliding block 36 drives the limiting plate 3 to move when the clamping seat 2 moves, when the cylinder barrel is clamped through the clamping seat 2, the limiting plate 3 is positioned above the cylinder barrel, and when the threaded rod 241 is rotated, the threaded rod 241 pushes the limiting plate 3 to move along the length direction of the sliding groove 24 through the sliding block 36, so that the position of the limiting plate 3 can be conveniently adjusted.

Referring to fig. 4 and 5, the limiting plate 3 is slidably connected with the positioning block 31 along the length direction, and a positioning spring is arranged between the limiting plate 3 and the positioning block 31, one end of the positioning spring is fixedly connected with the positioning block 31, the other end of the positioning spring is fixedly connected with the limiting plate 3, and when the positioning spring is in a natural state, the positioning block 31 is located right above the limiting plate 3. The locating block 31 is opened with guide slot 311 with the direction perpendicular to the central axis, and guide slot 311's internal diameter is greater than the external diameter of glib, and locating block 31's lower tip is equipped with a plurality of locating plates 35, and locating plate 35 sets up along guide slot 311 circumference. The positioning plate 35 is parallel to the length direction of the guide groove 311, the positioning plate 35 passes through the positioning block 31 along the length direction of the positioning plate 35 and is in sliding connection with the positioning block 31, and the positioning block 31 drives the positioning plate 35 to move when moving.

Referring to fig. 4 and 5, the positioning plate 35 is provided with a plurality of uniformly arranged clamping grooves 355 along the length direction, the positioning block 31 is slidably connected with a clamping block 313 adapted to the clamping groove 355 along the direction approaching or separating from the positioning plate 35, and the clamping block 313 is attached to the inner wall of the clamping groove 355 when being inserted into the clamping groove 355. At this time, the positioning block 31 limits the displacement of the positioning plate 35 in the longitudinal direction by the clamping block 313, and in the initial state, the positioning plate 35 is located at a position close to the cylinder.

Referring to fig. 4 and 5, in an initial state, the guide groove 311 of the positioning block 31 is opposite to the position of the cylinder where the oil nozzle needs to be welded, when the oil nozzle is placed, the oil nozzle is placed into the guide groove 311, and one side of the oil nozzle, which is provided with the arc-shaped groove, is opposite to the cylinder, the oil nozzle contacts with the cylinder under the guiding action of the guide groove 311 and the positioning plate 35, and the arc-shaped groove of the oil nozzle is attached to the outer circle of the cylinder under the action of gravity. The lower end of the positioning plate 35 is vertically provided with an adjusting rod 351, and the adjusting rod 351 passes through the positioning plate 35 along the axial direction and is in sliding connection with the positioning plate 35, and the adjusting rod 351 is driven to move when the positioning plate 35 moves.

Referring to fig. 4 and 5, one end of each of the adjusting rods 351, which is close to each other, is fixedly connected with an abutment block 352, and the adjusting rods 351 move to drive the abutment block 352 to move. One end of the adjusting rod 351, which is far away from the abutting block 352, is provided with an elastic piece 353, the elastic piece 353 is a spring, one end of the spring is fixedly connected with the positioning plate 35, the other end of the spring is fixedly connected with the adjusting rod 351, and when the elastic piece 353 is in a natural state, a gap is reserved between the abutting block 352 and the positioning plate 35. When the oil nozzle is attached to the outer circle of the cylinder barrel, a plurality of abutting blocks are arranged along the circumference of the abutting blocks 352, and all the abutting blocks 352 are matched to limit the oil nozzle. Meanwhile, if the position of the nipple is deviated from the welding position, the operator moves the adjustment lever 351 from the outside, so that the adjustment lever 351 pushes the nipple to move through the abutment block 352.

Referring to fig. 4 and 5, the adjusting rod 351 is screw-coupled with an abutment ring 354, the abutment ring 354 being located between the abutment block 352 and the positioning plate 35, and the abutment ring 354 moves along the length direction of the adjusting rod 351 when the abutment ring 354 is rotated. All the abutting blocks 352 are arranged in pairs, one side, close to the abutting blocks 352, of each abutting rod abuts against the corresponding locating plate 35, the trend, close to the corresponding locating plate 35, of each abutting block 352 is limited, and therefore the distance between the two opposite abutting blocks 352 is convenient to adjust.

Referring to fig. 4 and 5, a driving ring 32 is slidably connected to an upper end portion of a positioning block 31 in a vertical direction, a moving ring 33 is provided outside the driving ring 32, the moving ring 33 is rotatably connected to the positioning block 31, the driving ring 32 is in threaded connection with the moving ring 33, the positioning block 31 limits displacement of the moving ring 33 in an axial direction, and when the moving ring 33 is rotated, the moving ring 33 pushes the driving ring 32 to move in the axial direction. The positioning block 31 is circumferentially provided with a plurality of mutually parallel pressing bars 34 along the guide groove 311, and the pressing bars 34 are arranged along the length direction of the guide groove 311. A swing rod 312 is arranged between the pressing rod 34 and the positioning block 31, at least two swing rods 312 are arranged on the same pressing rod 34, one end of each swing rod 312 is hinged with the pressing rod 34 vertically, the other end of each swing rod 312 is hinged with the positioning block 31, and all the swing rods 312 incline from top to bottom to a position far away from the driving ring 32.

Referring to fig. 4 and 5, the driving ring 32 is vertically hinged with a push rod 331, when the driving ring 32 moves, the push rod 331 is driven to move, one end of the push rod 331 far away from the driving ring 32 is vertically hinged with the pressing rod 34, and the push rod 331 is inclined from top to bottom in a direction approaching to the axis of the driving ring 32. In the initial state, the driving ring 32 is located at a position far away from the clamping seat 2, and all the pressing rods 34 are located at positions far away from the axis of the driving ring 32, so that the glib is avoided when the glib is placed.

Referring to fig. 1 and 5, after the oil nozzle is placed on the outer cylinder, the oil nozzle is located between the pressing rod 34 and the clamping seat 2, at this time, the moving ring 33 is rotated, so that the moving ring 33 drives the driving ring 32 to approach the oil nozzle, and when the driving ring 32 moves, the pressing rod 34 is driven to move by the push rod 331, so that the pressing rod 34 approaches the oil nozzle and performs pressing positioning on the oil nozzle.

Referring to fig. 1 and 5, when the oil nozzle is positioned, the oil nozzle is pre-positioned through two adjusting rods 351 which are arbitrarily opposite, after the oil nozzle is pressed, the clamping of the adjusting rods 351 to the oil nozzle is loosened, and the positioning plate 35 is moved upwards, so that the positioning plate 35 drives the adjusting rods 351 to be far away from the cylinder barrel, the welding operation space between the oil nozzle and the cylinder barrel is enlarged, and the oil nozzle is conveniently welded through a welding gun. When the oil nozzle is welded, the oil nozzle is firstly regulated by the guide groove 311, the locating plate 35 and the regulating rod 351 of the locating block 31, so that the oil nozzle is attached to the outer edge of the cylinder barrel, and then the oil nozzle is pressed and positioned by the pressing rod 34, so that the probability of secondary positioning caused by deflection after the oil nozzle is positioned is reduced, and convenience in welding the oil nozzle is improved.

The hydraulic cylinder welding device based on cylinder positioning is implemented by the principle that after a cylinder is placed in a positioning groove 11, a supporting seat 1 supports the cylinder through a supporting rod 12 and a supporting wheel 121, then a clamping seat 2 moves towards the cylinder, after a tensioning block 212 enters the cylinder, a bidirectional screw 211 is rotated, so that a moving block 213 drives the tensioning block 212 to move through a hinging rod 214, and the two tensioning blocks 212 cooperate to position the cylinder. After the clamping seat 2 positions the cylinder barrel through the tensioning block 212, the limiting plate 3 drives the positioning block 31 to move to the upper side of the cylinder barrel, the guide groove 311 is opposite to the position of the cylinder barrel, where the oil nozzle is needed to be welded, the oil nozzle is placed above the cylinder barrel along the guide groove 311, after the oil nozzle contacts with the cylinder barrel, under the action of gravity, the arc-shaped groove of the oil nozzle is attached to the outer circle of the cylinder barrel, at the moment, the position of the oil nozzle is finely adjusted through the adjusting rod 351 and the oil nozzle is pre-positioned, then the moving ring 33 is rotated, so that the moving ring 33 drives the driving ring 32 to approach the oil nozzle, the driving ring 32 drives the pressing rod 34 to move through the push rod 331 when moving, under the limiting effect of the swing rod 312, the pressing rod 34 synchronously moves to the supporting seat 1 when approaching the axis of the moving ring 33, and the lower end of the pressing rod 34 is in clamping positioning with the oil nozzle when contacting with the oil nozzle. The installation position of the oil nozzle is confirmed in advance before the oil nozzle is positioned, so that the probability of deflection after the oil nozzle is positioned is reduced, the probability of secondarily adjusting the oil nozzle is reduced, and the welding convenience of the oil nozzle is improved.

The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.

Claims

1. The utility model provides a hydraulic cylinder welding set based on cylinder location, includes supporting seat (1), and supporting seat (1) upper end is equipped with constant head tank (11) that are used for placing the cylinder, its characterized in that still includes:

The clamping seat (2) is positioned at one end of the positioning groove (11) along the length direction and is in sliding connection with the supporting seat (1) along the length direction of the positioning groove (11), the clamping seat (2) is provided with a positioning component (21), and when the cylinder barrel is positioned in the positioning groove (11), the clamping seat (2) positions the cylinder barrel through the positioning component (21);

The limiting plate (3) is positioned at the upper end part of the clamping seat (2) and moves along with the clamping seat (2), the upper end part of the limiting plate (3) is arc-shaped, when the cylinder body is positioned in the positioning groove (11), the limiting plate (3) is coaxial with the cylinder body, the limiting plate (3) is slidably connected with the positioning block (31) along the length direction, and the positioning block (31) is provided with the guide groove (311) along the direction pointing to the axis of the limiting plate (3);

The driving ring (32) is positioned at the upper end part of the positioning block (31) and is in sliding connection with the positioning block (31) along the length direction of the guide groove (311), the upper end part of the positioning block (31) is rotationally connected with the moving ring (33), the moving ring (33) is sleeved outside the driving ring (32) and is in threaded connection with the driving ring (32), the compression rod (34) is vertically arranged in the guide groove (311), a plurality of swinging rods (312) are arranged between the compression rod (34) and the positioning block (31), one end of each swinging rod (312) is vertically hinged with the positioning block (31), the other end of each swinging rod is vertically hinged with the corresponding compression rod (34), the driving ring (32) is vertically hinged with a push rod (331) corresponding to the compression rod (34), and one end of the push rod (331) far away from the driving ring (32) is vertically hinged with the corresponding compression rod (34);

The lower end part of the positioning block (31) is provided with a plurality of positioning plates (35), the positioning plates (35) are circumferentially arranged along the guide groove (311), all the positioning plates (35) are vertically provided with adjusting rods (351), the adjusting rods (351) penetrate through the positioning plates (35) and are in sliding connection with the positioning plates (35) along the axial direction, the direction of the adjusting rods (351) close to the axial line of the driving ring (32) is fixedly provided with abutting blocks (352), elastic pieces (353) are arranged between the adjusting rods (351) and the positioning plates (35), and when the elastic pieces (353) are in a natural state, gaps are reserved between the abutting blocks (352) and the positioning plates (35);

The positioning assembly (21) comprises a bidirectional screw (211), two tensioning blocks (212) and two moving blocks (213), the upper end of the clamping seat (2) is provided with a support column (22), the support column (22) is coaxial with the limiting plate (3), the bidirectional screw (211) is arranged along the length direction of the support column (22) and is in threaded connection with the support column (22), the two moving blocks (213) are respectively located at two ends of the bidirectional screw (211) and are in threaded connection with the bidirectional screw (211), the moving blocks (213) are in sliding connection with the support column (22) along the length direction of the support column (22), the two tensioning blocks (212) are respectively located at two sides of the support column (22) along the width direction, a hinge rod (214) is arranged between the moving blocks (213) and the tensioning blocks (212), one end of the hinge rod (214) is hinged with the moving blocks (213), and the other end of the hinge rod (214) is hinged with the tensioning blocks (212).

2. The hydraulic cylinder welding device based on cylinder barrel positioning according to claim 1, wherein an external thread is arranged at one end of the adjusting rod (351) close to the abutting block (352), the abutting ring (354) is connected with the adjusting rod (351) in a threaded mode, and the abutting ring (354) is located on one side, away from the elastic piece (353), of the positioning plate (35) and abuts against the positioning plate (35).

3. The hydraulic cylinder welding device based on cylinder positioning according to claim 1, wherein all upper end portions of the positioning plates (35) penetrate through the positioning blocks (31) and are in sliding connection with the positioning blocks (31), a plurality of clamping grooves (355) are formed in the positioning plates (35) along the length direction, and clamping blocks (313) corresponding to the clamping grooves (355) are connected with the upper end portions of the positioning blocks (31) along the direction perpendicular to the positioning plates (35) in a sliding manner.

4. The hydraulic cylinder welding device based on cylinder positioning according to claim 1, wherein a supporting cylinder (23) is fixedly arranged at the upper end part of the supporting seat (1), the supporting cylinder (23) is sleeved on the outer side of the supporting column (22) and is rotationally connected with the supporting column (22), a worm wheel (221) is coaxially fixed on the outer side of the supporting column (22), and a worm (231) meshed with the worm wheel (221) is rotationally connected with the supporting cylinder (23).

5. The hydraulic cylinder welding device based on cylinder positioning according to claim 4, wherein the end part of the limiting plate (3) along the length direction is fixedly connected with a sliding block (36), a sliding groove (24) corresponding to the sliding block (36) is formed in the upper end part of the clamping seat (2) along the length direction, the sliding block (36) is positioned in the sliding groove (24) and is in sliding connection with the clamping seat (2) along the length direction of the sliding groove (24), the clamping seat (2) is rotationally connected with a threaded rod (241) along the length direction of the sliding groove (24), and the threaded rod (241) penetrates through the sliding block (36) and is in threaded connection with the sliding block (36).

6. The hydraulic cylinder welding device based on cylinder positioning according to claim 1, wherein a plurality of support rods (12) are arranged in the positioning groove (11), the support rods (12) are circumferentially arranged along the positioning groove (11), sliding blocks (13) are fixedly connected to two ends of the support rods (12) along the length direction, moving grooves (14) communicated with the positioning groove (11) are formed in the clamping seat (2) along the direction close to or far away from the axis of the limiting plate (3), the sliding blocks (13) are located in the moving grooves (14) and are slidably connected with the clamping seat (2) along the length direction of the moving grooves (14), a plurality of support wheels (121) are arranged in the length direction of the support rods (12), the support wheels (121) are rotatably connected with the support rods (12), the clamping seat (2) is detachably connected with support plates (15), and the support plates (15) are located on one sides, deviating from the axis of the limiting plate (3), of all the support rods (12) and are in contact with all the support rods (12).