CN116252093A - Loader arm welding fixture - Google Patents
Loader arm welding fixture Download PDFInfo
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- CN116252093A CN116252093A CN202310538058.0A CN202310538058A CN116252093A CN 116252093 A CN116252093 A CN 116252093A CN 202310538058 A CN202310538058 A CN 202310538058A CN 116252093 A CN116252093 A CN 116252093A
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- 238000003466 welding Methods 0.000 title claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 63
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 24
- 230000000149 penetrating effect Effects 0.000 claims description 24
- 238000013519 translation Methods 0.000 claims description 10
- 230000002457 bidirectional effect Effects 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 230000008439 repair process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 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
- 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
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model belongs to the technical field of machining and relates to a loader arm welding tool, which comprises a lifting system, a lower positioning mechanism, an upper positioning mechanism, a side positioning mechanism and an auxiliary positioning mechanism, wherein the lower positioning mechanism comprises three positioning columns and a tool bottom plate, the bottoms of the positioning columns are provided with positioning inserting rods, the tops of the tool bottom plates are provided with a plurality of positioning jacks, the upper positioning mechanism comprises three positioning blocks and a tool top plate, the tops of the positioning blocks are provided with threaded rods, the bottoms of the positioning blocks are provided with rotating handles, the bottoms of the tool top plate are provided with a plurality of positioning screw holes, the tops of the tool top plate are provided with connecting brackets, the lower positioning mechanism and the upper positioning mechanism are arranged at intervals up and down, the connecting brackets are connected with the lifting system, the side positioning mechanism is positioned under the tool bottom plate, and the auxiliary positioning mechanism is arranged on the side wall of the connecting brackets. The utility model not only improves the application range, but also ensures that the large arm plate can be completely attached to the cross beam, and the connection reinforcing plate can be completely attached to the cross beam.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to a loader arm welding tool.
Background
Welding technology is one of the important mechanical manufacturing technologies and is widely applied to engineering mechanical equipment. The welding quality directly affects the safe operation and service life of engineering equipment and the safety of operators, and the efficiency directly affects the manufacturing cycle and the manufacturing cost of workpieces. How to ensure the welding quality and improve the welding efficiency, reduce the repair rate, reduce the labor intensity of workers and the labor cost is a key measure for controlling the manufacturing of workpieces. And the quality of the welding fixture design directly influences the welding quality and efficiency.
As shown in fig. 1, this is a boom commonly used for a loader, and the boom is formed by assembling and welding a cross beam 10, two large arm plates 20 and two connection reinforcing plates 30, three connection holes 201 are formed in the large arm plates 20, and fixing holes 301 are formed in the connection reinforcing plates 30.
The utility model of China with the bulletin number of CN 218225308U discloses a movable arm welding tool of a loader, which comprises a welding tool body, wherein the welding tool body is provided with a tool girder, the upper side of the tool girder is provided with a beam automatic positioning tool and a beam automatic pressing tool for mounting a beam, and the left side and the right side of the end face of the bottom of a positioning block are respectively provided with a left automatic pressing tool and a right automatic pressing tool. This through add left side automatic compaction frock and right side automatic compaction frock in welding frock upside, start first rotatory oil pressure jar through hydraulic controller when using, first rotatory oil pressure jar withdraws this moment, the pressure head of drive depression bar presses the big arm board of loader in place, make it and crossbeam lateral wall looks butt, guarantee that the big arm board in left side and the big arm board in right side laminate completely with the crossbeam, leave the gap, ensure welding seam quality, make it at welded in-process one shot forming, need not to change, work efficiency has been improved greatly.
However, the above patents still have drawbacks: the movable arm welding tool is only suitable for movable arms of specified types, and has limitation on application range, so that a set of welding tool is required to be prepared for welding the movable arms of each type.
Disclosure of Invention
The utility model aims to solve the technical problems that: in order to solve the problem of how to improve the application scope of the welding tool.
The utility model provides a loader arm welding tool, which comprises a lifting system, a lower positioning mechanism for positioning one large arm plate, an upper positioning mechanism for positioning the other large arm plate, a side positioning mechanism for positioning a cross beam and an auxiliary positioning mechanism for synchronously positioning two connecting reinforcing plates, wherein the lower positioning mechanism comprises three positioning columns and a tool bottom plate, the cross sections of the positioning columns are matched with connecting holes, positioning inserting rods are arranged at the bottoms of the positioning columns, a plurality of positioning jacks matched with the positioning inserting rods are formed in the tops of the tool bottom plate, the upper positioning mechanism comprises three positioning blocks and a tool top plate, the cross sections of the positioning blocks are matched with the connecting holes, threaded rods are arranged at the tops of the positioning blocks, rotating handles are arranged at the bottoms of the positioning blocks, a plurality of positioning screw holes matched with the threaded rods are formed in the bottoms of the tool top plate, connecting brackets are arranged at the tops of the tool top plate, the lower positioning mechanisms and the upper positioning mechanisms are arranged at intervals, the tool bottom plate of the lower positioning mechanisms is parallel to the tool top plate of the upper positioning mechanism, the connecting brackets are connected with the lifting system, the side positioning mechanisms are positioned right below the tool bottom plate, and the auxiliary positioning mechanisms are arranged on the side walls of the connecting brackets.
Preferably, the side positioning mechanism comprises two transverse moving electric cylinders, two sliding table electric cylinders and two tight components, wherein L-shaped plates are arranged on the two sliding tables of the two sliding table electric cylinders, the two transverse moving electric cylinders are symmetrically arranged under the tool bottom plate, the two sliding table electric cylinders are arranged on the sliding tables of the two transverse moving electric cylinders, the transverse moving electric cylinders and the two sliding table electric cylinders are arranged in a crossing manner, and the two tight components are symmetrically arranged on the two L-shaped plates.
Preferably, the tight subassembly is supported includes to impel electric putter and supports tight frame, the tail end that supports tight frame is equipped with the connector, impel electric putter and be the level setting on L template, it can dismantle through the connector to support tight frame and connect on impeing electric putter's output.
Preferably, the head end of the abutting frame is provided with a sliding cavity, a sliding plate is arranged in the sliding cavity in a sliding mode, the front portion of the sliding plate is provided with an abutting contact, the back portion of the sliding plate is provided with a first spring, and the head end of the sliding cavity is provided with a step used for limiting the abutting contact.
Preferably, a rubber layer is arranged at the head end of the abutting head.
Preferably, the auxiliary positioning mechanism comprises two rotating seats, a swinging plate, a first motor, a flat push electric push rod, a connecting plate, a translation electric cylinder, a longitudinal movement electric cylinder, two positioning jigs and a bidirectional movement screw rod sliding table for pushing the two positioning jigs to move reversely all the time, wherein the two sides of one end of the swinging plate are respectively provided with a first rotating shaft in rotating fit with the rotating seats, the two rotating seats are symmetrically arranged on the side wall of one side of the connecting bracket, the swinging plate is arranged on the two rotating seats through the first rotating shaft, the first motor is positioned at the side of one rotating seat, the output end of the first motor is fixedly connected with one of the first rotating shafts, the flat push electric push rod is vertically arranged at the back of the swinging plate, the back of the connecting plate is fixedly connected with the output end of the flat push electric push rod, the translation electric cylinder is arranged at the front part of the connecting plate, the longitudinal movement electric cylinder is connected with the sliding table of the translation electric cylinder, the longitudinal movement electric cylinder is arranged in a cross mode with the translation electric cylinder, the bidirectional movement screw rod sliding table is vertically connected with the sliding table of the longitudinal movement electric cylinder, and the two positioning jigs are respectively connected with the two bidirectional movement screw rods.
Preferably, the positioning jig comprises a positioning frame body, a second motor, a first sprocket and a penetrating column, the cross-sectional area of the penetrating column is smaller than that of a fixed hole, a second rotating shaft coaxial with the penetrating column is arranged at the bottom of the penetrating column, a second sprocket is arranged at the bottom of the second rotating shaft, a plurality of inner grooves which are arranged at equal angles are formed in the outer wall of the penetrating column, a telescopic part is arranged in the inner grooves, a mounting groove with a circular cross section is formed in the center of the penetrating column, a communication window is arranged between the mounting groove and the inner grooves, locking parts which are used for propping all telescopic parts to the hole wall of the fixed hole are arranged in the mounting groove, the positioning frame body is horizontally fixedly connected to one sliding table of the two-way moving screw sliding table, the second motor is vertically connected to the top of the positioning frame body, the first sprocket is located in the positioning frame body, the first sprocket is fixedly connected with the output end of the second motor, the first sprocket is arranged at the top of the positioning frame body through the second rotating shaft, the second sprocket is located in the positioning frame body, and the first sprocket is connected with the first sprocket through a transmission chain.
Preferably, the telescopic member includes the expansion plate with intercommunication window sliding fit and is used for sealing the cap of indent, the tail end top of expansion plate is equipped with the wedge, the both sides wall of expansion plate all is equipped with the limiting plate that carries out spacingly with the expansion plate, be equipped with a plurality of second springs on the limiting plate, offer the window that moves outward that supplies the expansion plate to pass through on the cap, the expansion plate is located the indent, the cap passes through the screw fixation to the indent in, the other end of second spring is contradicted with the cap inner wall, the retaining member includes the locking post and turn round the handle that the cross-section is the same with the mounting groove cross-section, the bottom of locking post is equipped with the outer chamfer with wedge complex, be equipped with the external screw thread on the outer wall that the locking post is close to its top, be equipped with on the inner wall that the mounting groove is close to its top with external screw thread complex internal thread, turn round the handle fixed connection at the top of locking post.
Preferably, the head end of the expansion plate is provided with anti-skid transverse lines.
The utility model has the beneficial effects that:
firstly, the loader arm welding tool provided by the utility model abandons a horizontal positioning mode, adopts a vertical positioning mode, can position and fix large arm plates of movable arms with different sizes through an upper positioning mechanism and a lower positioning mechanism, and can position two connecting reinforcing plates on a cross beam through an auxiliary positioning mechanism. The utility model not only improves the application range, but also ensures that the large arm plate can be completely attached to the cross beam, and the connection reinforcing plate can be completely attached to the cross beam.
Secondly, according to the loader arm welding tool disclosed by the utility model, the double sliding tables and the two abutting assemblies can be driven to synchronously transversely move through the two transverse moving electric cylinders, so that the positions of the two abutting assemblies can be adjusted to meet the requirement of abutting positioning of the cross beams of movable arms of different types.
Thirdly, the loader arm welding tool provided by the utility model can be used for quickly fixing the connecting reinforcing plate by adopting the positioning tool, and can be used for adjusting the placing angle of the connecting reinforcing plate.
Fourth, the loader arm welding tool disclosed by the utility model can drive the two positioning tools to perform three-axis position adjustment by mutually matching the translation electric cylinder, the longitudinal movement electric cylinder and the two-way movement screw rod sliding table, so that not only can the two connection reinforcing plates move to the distance required during welding, but also the connection reinforcing plates can be completely attached to the cross beam.
Drawings
In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed for the present utility model will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a boom configuration;
FIG. 2 is a schematic structural view of a loader arm welding fixture of the present utility model;
FIG. 3 is a partial schematic view of a loader arm welding fixture of the present utility model;
FIG. 4 is a cross-sectional view of the abutment frame;
FIG. 5 is a second schematic illustration of a loader arm welding fixture according to the present utility model;
FIG. 6 is a schematic view of a loader arm welding fixture according to the present utility model;
FIG. 7 is a schematic diagram of a positioning fixture;
FIG. 8 is a partial schematic view of a positioning fixture;
fig. 9 is a partial cross-sectional view of the positioning jig.
Reference numerals: 1. a lower positioning mechanism; 11. positioning columns; 111. positioning the inserted link; 12. a tool bottom plate; 121. positioning the jack; 2. an upper positioning mechanism; 21. a positioning block; 211. a threaded rod; 212. a rotary handle; 22. a tool top plate; 221. positioning screw holes; 222. a connecting bracket; 3. a side positioning mechanism; 31. a transverse moving electric cylinder; 32. double sliding table electric cylinder; 321. an L-shaped plate; 33. a tightening assembly; 331. pushing the electric push rod; 332. a pressing frame; 333. a sliding cavity; 334. a slide plate; 335. a contact; 336. a first spring; 337. a step; 338. a connector; 4. an auxiliary positioning mechanism; 41. a rotating seat; 42. a swinging plate; 421. a first rotating shaft; 43. a first motor; 44. a flat pushing electric push rod; 45. a connecting plate; 46. a translation electric cylinder; 47. a longitudinal moving electric cylinder; 48. two-way moving screw rod slipway; 5. positioning jig; 51. positioning a frame; 52. a second motor; 53. a first sprocket; 54. threading a column; 541. a second rotating shaft; 542. a second sprocket; 543. an inner groove; 544. a mounting groove; 55. a telescoping member; 551. a telescoping plate; 552. a cover; 553. wedge surface; 554. a limiting plate; 555. a second spring; 556. an outward moving window; 56. a locking member; 561. locking the column; 562. a torsion handle; 563. an outer chamfer; 564. an external thread; 10. a cross beam; 20. a large arm plate; 201. a connection hole; 30. connecting a reinforcing plate; 301. and a fixing hole.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown.
The loader arm welding fixture provided in this embodiment, as shown in fig. 2 to 9, including a lifting system, a lower positioning mechanism 1 for positioning one of the large arm plates 20, an upper positioning mechanism 2 for positioning the other large arm plate 20, a side positioning mechanism 3 for positioning the cross beam 10, and an auxiliary positioning mechanism 4 for synchronously positioning the two connection reinforcing plates 30, the lower positioning mechanism 1 includes three positioning columns 11 with cross sections matching with the connection holes 201 and a fixture bottom plate 12, the bottom of the positioning column 11 is provided with a positioning inserting rod 111, the top of the fixture bottom plate 12 is provided with a plurality of positioning insertion holes 121 matching with the positioning inserting rod 111, the upper positioning mechanism 2 includes three positioning blocks 21 with cross sections matching with the connection holes 201 and a fixture top plate 22, the top of the positioning blocks 21 is provided with a threaded rod 211, the bottom of the positioning blocks 21 is provided with a rotary handle 212, the bottom of the fixture top plate 22 is provided with a plurality of positioning screw holes 221 matching with the threaded rod 211, the top of the fixture top plate 22 is provided with a connection bracket 222, the lower positioning mechanism 1 and the upper positioning mechanism 2 are arranged at an upper and lower intervals, the bottom plate 12 of the lower positioning mechanism 1 and the fixture bottom plate 2 is provided with a side wall 222 parallel to the connection bracket 3 and the side wall of the upper positioning mechanism 2, and the side of the auxiliary positioning mechanism is arranged right below the lifting bracket 222. The lifting system can be lifting equipment or an electric cylinder, which is the prior art, and the principle thereof is not described herein.
According to the utility model, a horizontal positioning mode is abandoned, a vertical positioning mode is adopted, one large arm plate 20 is firstly placed on a tool bottom plate 12 of a lower positioning mechanism 1, three positioning columns 11 are respectively inserted into three connecting holes 201 on the large arm plate 20, positioning inserting rods 111 on the positioning columns 11 can be inserted into corresponding positioning inserting holes 121, so that the large arm plate 20 can be positioned and fixed, a plurality of positioning inserting holes 121 are arranged, thus the large arm plate 20 with different sizes can be positioned and fixed, the application range is improved, the other large arm plate 20 is then positioned on a tool top plate 22 of an upper positioning mechanism 2, three positioning blocks 21 are respectively inserted into three connecting holes 201 of the large arm plate 20, then a rotary handle 212 is rotated, so that threaded rods 211 can gradually screw into corresponding positioning screw holes 221, then the large arm plate 20 is positioned on the top plate 22 by utilizing the mutual matching of the rotary handle 212, the positioning blocks 21, the threaded rods 211 and the positioning screw holes 221, and the tool top plate 22 can also be positioned and fixed for different large arm plates 20 with different sizes.
Subsequently, place crossbeam 10 to be located on the big arm board 20 of frock bottom plate 12, fix a position crossbeam 10 through side positioning mechanism 3, side positioning mechanism 3 includes two sideslip electric cylinders 31, two slip table electric cylinders 32 and two tight subassembly 33 of support, L template 321 is all installed on two slips of two slip table electric cylinders 32, two sideslip electric cylinders 31 symmetry sets up under frock bottom plate 12, two slip table electric cylinders 32 set up on the slip table of two sideslip electric cylinders 31, sideslip electric cylinders 31 and two slip table electric cylinders 32 cross arrangement, two tight subassembly 33 symmetry sets up on two L template 321, two sideslip electric cylinders 31 can drive two slip tables and two tight subassembly 33 synchronous sideslip, can adjust the position of two tight subassembly 33 so as to satisfy the crossbeam 10 to support tight location to different model movable arms, afterwards, move with the position of adjusting two tight subassembly 33 relatively through two slip table electric cylinders 32, afterwards utilize tight subassembly 33 to support crossbeam 10 tightly, tight subassembly 33 includes that the electric putter 33 supports the electric putter and the connector 332 tightly is tight end 332 to electric putter 331, the electric putter 331 can be connected at the tight end 332 of electric putter 331, the electric putter 332 can carry out the horizontal thrust frame 332 to the electric putter 332 and carry out the tight end 332 to the electric putter 332.
Further, the head end of the abutting frame 332 is provided with a sliding cavity 333, a sliding plate 334 is slidably arranged in the sliding cavity 333, an abutting head 335 is arranged at the front part of the sliding plate 334, a first spring 336 is arranged at the back of the sliding plate 334, a step 337 for limiting the abutting head 335 is arranged at the head end of the sliding cavity 333, the abutting head 335 is abutted against the cross beam 10, the electric push rod 331 is pushed to continuously push the abutting frame 332 to move, the abutting head 335 can gradually retract into the sliding cavity 333, the sliding plate 334 and the abutting head 335 are synchronously locked in the sliding cavity 333, the sliding plate 334 is pressed against the first spring 336 to compress, and after the electric push rod 331 is pushed to stop working, the stability of the positioning and clamping cross beam 10 can be improved by the elastic force of the first springs 336 in the two abutting frames 332.
Further, the head end of the abutting head 335 is provided with a rubber layer, so that accidental damage of the abutting head 335 to the cross beam 10 is avoided.
After the beam 10 is positioned, two connecting reinforcing plates 30 are positioned through an auxiliary positioning mechanism 4, the auxiliary positioning mechanism 4 comprises two rotating seats 41, a swinging plate 42, a first motor 43, a flat-pushing electric push rod 44, a connecting plate 45, a translation electric cylinder 46, a longitudinal moving electric cylinder 47, two positioning jigs 5 and a bidirectional moving screw rod sliding table 48 for pushing the two positioning jigs 5 to move reversely all the time, first rotating shafts 421 in rotary fit with the rotating seats 41 are arranged on two sides of one end of the swinging plate 42, the two rotating seats 41 are symmetrically arranged on the side wall of one side of the connecting bracket 222, the swinging plate 42 is arranged on the two rotating seats 41 through the first rotating shafts 421, the first motor 43 is located beside one rotating seat 41, the output end of the first motor 43 is fixedly connected with one of the first rotating shafts 421, the flat-pushing electric push rod 44 is vertically arranged on the back of the swinging plate 42, the back of the connecting plate 45 is fixedly connected with the output end of the flat-pushing electric push rod 44, the translation electric cylinder 46 is arranged on the front part of the connecting plate 45, the longitudinal moving electric cylinder is connected with the sliding table 47, and the longitudinal moving electric cylinder 47 is arranged on the sliding table 47 and the two bidirectional moving electric cylinders 48 which are connected with the two sliding tables 48 in a cross-sliding table 5 respectively.
The positioning jig 5 comprises a positioning frame body 51, a second motor 52, a first sprocket 53 and a penetrating column 54, wherein the cross-sectional area of the penetrating column 54 is smaller than that of a fixed hole 301, a second rotating shaft 541 coaxial with the penetrating column 54 is arranged at the bottom of the penetrating column 54, a second sprocket 542 is arranged at the bottom of the second rotating shaft 541, a plurality of inner grooves 543 which are arranged at equal angles are formed in the outer wall of the penetrating column 54, telescopic members 55 are arranged in the inner grooves 543, a mounting groove 544 with a circular cross section is formed in the center of the penetrating column 54, a communication window is formed between the mounting groove 544 and the inner grooves 543, locking members 56 used for pressing all the telescopic members 55 to the wall of the fixed hole 301 are arranged in the mounting groove 544, the positioning frame body 51 is horizontally and fixedly connected to one sliding table of the two-way moving screw sliding table 48, the second motor 52 is vertically connected to the top of the positioning frame body 51, the first sprocket 53 is located in the positioning frame body 51, the first sprocket 53 is fixedly connected with the output end of the second motor 52, the penetrating column 54 is arranged at the top of the positioning frame body 51 through the second sprocket 541, and the second sprocket 542 is located in the positioning frame body 542, and the second sprocket 542 is connected with the second sprocket 53 through the transmission chain.
The telescopic piece 55 includes the expansion plate 551 with communicate window sliding fit and is used for sealing the cap 552 of internal groove 543, the tail end top of expansion plate 551 is equipped with wedge face 553, the both sides wall of expansion plate 551 all is equipped with the limiting plate 554 that carries out spacing with to expansion plate 551, be equipped with a plurality of second springs 555 on the limiting plate 554, offer the window 556 that moves outward that supplies expansion plate 551 to pass through on the cap 552, expansion plate 551 is located internal groove 543, cap 552 passes through the screw fixation to internal groove 543 in, the other end of second spring 555 is contradicted with cap 552 inner wall, the retaining member 56 includes locking post 561 and the knob 562 that the cross-section is the same with the mounting groove 544 cross-section, the bottom of locking post 561 is equipped with wedge face complex outer chamfer 553, be equipped with external screw 564 on the outer wall that locking post 561 is close to its top, be equipped with on the inner wall that mounting groove 544 is close to its top with external screw 564 complex internal thread, knob 562 fixed connection is at the top of locking post 561.
Referring to fig. 6 to 9, the principle of operation of the auxiliary positioning mechanism 4: the two connection reinforcing plates 30 are fixed firstly, the fixing holes 301 of the connection reinforcing plates 30 are utilized to penetrate through the penetrating columns 54 of the positioning jig 5, the bottoms of the connection reinforcing plates 30 are abutted against the top of the positioning frame body 51, then the locking columns 561 are pressed into the mounting grooves 544 of the penetrating columns 54, in the pressing process, the expansion plates 551 can be pushed forward by utilizing the cooperation of the outer chamfer 563 and the wedge surface 553, the head ends of the expansion plates 551 can be abutted against the inner walls of the fixing holes 301 of the connection reinforcing plates 30, in order to improve the firmness of the inner walls of the expansion plates 551 abutted against the fixing holes 301, therefore, anti-skid transverse lines are arranged at the head ends of the expansion plates 551, the connection reinforcing plates 30 are firmly fixed by utilizing all the expansion plates 551, the locking columns 561 are rotated by the torsion handles 562, the locking columns 561 are locked in the mounting grooves 544 by utilizing the external threads 564 and the internal threads, and then the first chain wheels 53 are driven to rotate by the second motor 52, the first sprocket 53 drives the second sprocket 542, the second rotating shaft 541 and the penetrating column 54 to synchronously rotate through a chain, the penetrating column 54 drives the corresponding connection reinforcing plates 30 to rotate, so that the arrangement angle of the connection reinforcing plates 30 is adjusted, after the arrangement angle adjustment of the two connection reinforcing plates 30 is completed, the first rotating shaft 421 is driven by the first motor 43 to rotate, the first rotating shaft 421 drives the swinging plate 42 to rotate 90 degrees, the swinging plate 42 is changed into a vertical state from a horizontal state, then the upper positioning mechanism 2 is driven to move downwards through a lifting system, the large arm plate 20 on the upper positioning mechanism 2 can compress the cross beam 10, so that the cross beams 10 with different types can be compressed and positioned, then the two-way moving screw sliding table 48 and the two positioning jigs 5 are adjusted by the matching of the translation electric cylinder 46 and the longitudinal moving electric cylinder 47, after the adjustment is completed, the two positioning jigs 5 are driven to be adjusted through the two-way moving screw rod sliding table 48, then the connecting plate 45 is driven to move towards the cross beam 10 through the flat pushing electric push rod 44, the connecting plate 45 drives the two positioning jigs 5 and the two connecting reinforcing plates 30 to synchronously move, and finally the two connecting reinforcing plates 30 are attached to the cross beam 10, so that positioning is completed.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (9)
1. The loader arm welding fixture comprises a lifting system and is characterized by further comprising a lower positioning mechanism (1) for positioning one large arm plate (20), an upper positioning mechanism (2) for positioning the other large arm plate (20), a side positioning mechanism (3) for positioning a cross beam (10) and an auxiliary positioning mechanism (4) for synchronously positioning two connecting reinforcing plates (30), wherein the lower positioning mechanism (1) comprises positioning columns (11) and a fixture bottom plate (12) with three sections matched with connecting holes (201), the bottom of the positioning columns (11) is provided with positioning inserting rods (111), the top of the fixture bottom plate (12) is provided with a plurality of positioning jacks (121) matched with the positioning inserting rods (111), the upper positioning mechanism (2) comprises three positioning blocks (21) with three sections matched with the connecting holes (201) and a fixture top plate (22), the top of each positioning block (21) is provided with a threaded rod (211), the bottom of each positioning block (21) is provided with a rotary handle (212), the bottom of each top plate (22) is provided with a plurality of positioning threaded rods (211) matched with the corresponding upper support (221), the upper support (2) and the lower support (222) are arranged at intervals, the tool bottom plate (12) of the lower positioning mechanism (1) is parallel to the tool top plate (22) of the upper positioning mechanism (2), the connecting bracket (222) is connected with the lifting system, the side positioning mechanism (3) is located right below the tool bottom plate (12), and the auxiliary positioning mechanism (4) is arranged on the side wall of the connecting bracket (222).
2. The loader arm welding fixture of claim 1, wherein: the side positioning mechanism (3) comprises two transverse moving electric cylinders (31), two sliding table electric cylinders (32) and two supporting tight components (33), L-shaped plates (321) are arranged on two sliding tables of the two sliding table electric cylinders (32), the two transverse moving electric cylinders (31) are symmetrically arranged right below the tool bottom plate (12), the two sliding table electric cylinders (32) are arranged on sliding tables of the two transverse moving electric cylinders (31), the transverse moving electric cylinders (31) and the two sliding table electric cylinders (32) are arranged in a crossing mode, and the two supporting tight components (33) are symmetrically arranged on the two L-shaped plates (321).
3. The loader arm welding fixture of claim 2, wherein: the tight subassembly (33) is supported including pushing forward electric putter (331) and supporting tight frame (332), the tail end that supports tight frame (332) is equipped with connector (338), it is horizontal setting on L template (321) to advance electric putter (331), it can dismantle through connector (338) connect on the output that advances electric putter (331) to support tight frame (332).
4. The loader arm welding fixture of claim 3, wherein: the head end of support tight frame (332) is equipped with smooth chamber (333), it is provided with slide (334) to slide in smooth chamber (333), the front portion of slide (334) is equipped with support contact (335), the back of slide (334) is equipped with first spring (336), the head end of smooth chamber (333) is equipped with step (337) that are used for carrying out spacing to support contact (335).
5. The loader arm welding fixture of claim 4, wherein: the head end of the abutting head (335) is provided with a rubber layer.
6. The loader arm welding fixture of claim 1, wherein: the auxiliary positioning mechanism (4) comprises two rotating seats (41), a swinging plate (42), a first motor (43), a flat pushing electric push rod (44), a connecting plate (45), a translation electric cylinder (46), a longitudinal moving electric cylinder (47), two positioning jigs (5) and a bidirectional moving screw rod sliding table (48) for pushing the two positioning jigs (5) to move reversely all the time, wherein first rotating shafts (421) in rotating fit with the rotating seats (41) are respectively arranged on two sides of one end of the swinging plate (42), the two rotating seats (41) are symmetrically arranged on the side wall of one side of a connecting bracket (222), the swinging plate (42) is arranged on the two rotating seats (41) through the first rotating shafts (421), the first motor (43) is positioned beside one rotating seat (41), the output end of the first motor (43) is fixedly connected with one first rotating shaft (421), the back of the flat pushing electric push rod (44) is vertically arranged on the back of the swinging plate (42), the back of the connecting plate (45) is connected with the output end of the flat pushing electric push rod (44), the output end of the sliding table is fixedly connected with the longitudinal moving electric cylinder (46) through the first motor (43) and the electric cylinder (46) is arranged on the longitudinal moving electric cylinder (47), the two-way moving screw rod sliding table (48) is vertically connected to the sliding table of the longitudinal moving electric cylinder (47), and the two positioning jigs (5) are respectively connected to the two sliding tables of the two-way moving screw rod sliding table (48).
7. The loader arm welding fixture of claim 6, wherein: the positioning jig (5) comprises a positioning frame body (51), a second motor (52), a first sprocket wheel (53) and a penetrating column (54), wherein the cross-sectional area of the penetrating column (54) is smaller than that of a fixed hole (301), a second rotating shaft (541) coaxial with the penetrating column (54) is arranged at the bottom of the penetrating column, a second sprocket wheel (542) is arranged at the bottom of the second rotating shaft (541), a plurality of inner grooves (543) which are arranged at equal angles are formed in the outer wall of the penetrating column (54), a telescopic piece (55) is arranged in the inner grooves (543), a mounting groove (544) with a circular cross section is formed in the center of the penetrating column (54), a communication window is formed between the mounting groove (544) and the inner grooves (543), locking pieces (56) for pressing all the telescopic pieces (55) to the hole wall of the fixed hole (301) are arranged in the mounting groove (544), the positioning frame body (51) is horizontally and fixedly connected to one motor of a bidirectional moving screw sliding table (48), the second motor (52) is vertically connected to the first sprocket wheel (53) and is fixedly connected to the first sprocket wheel (53), the penetrating column (54) is arranged at the top of the positioning frame body (51) through a second rotating shaft (541), a second sprocket (542) is positioned in the positioning frame body (51), and the second sprocket (542) is connected with the first sprocket (53) through chain transmission.
8. The loader arm welding fixture of claim 7, wherein: the utility model provides a telescopic member (55) include with intercommunication window sliding fit's expansion plate (551) and be used for seal cap (552) of internal groove (543), the tail end top of expansion plate (551) is equipped with wedge (553), the both sides wall of expansion plate (551) all is equipped with and carries out spacing limiting plate (554) with expansion plate (551), be equipped with a plurality of second springs (555) on limiting plate (554), offer on cap (552) and supply expansion plate (551) through outer window (556), expansion plate (551) are located internal groove (543), cap (552) are through screw fixation to internal groove (543), the other end of second springs (555) contradicts with cap (552) inner wall, locking piece (56) include locking post (561) and torsion bar (562) that the cross-section is the same with mounting groove (544), the bottom of locking post (561) is equipped with outer chamfer (563) with wedge (561) complex, be equipped with on the outer wall that locking post (561) is close to its top outside and be equipped with on torsion bar (564) and be equipped with on the top (564) and twist bar (562), it is equipped with on the top (564) and the thread (562) is fixed.
9. The loader arm welding fixture of claim 8, wherein: the head end of the expansion plate (551) is provided with anti-skid transverse lines.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310538058.0A CN116252093B (en) | 2023-05-15 | 2023-05-15 | Loader arm welding fixture |
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| CN202310538058.0A CN116252093B (en) | 2023-05-15 | 2023-05-15 | Loader arm welding fixture |
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| CN116252093B CN116252093B (en) | 2023-07-07 |
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| CN116767915A (en) * | 2023-08-22 | 2023-09-19 | 莱州耀胜自动化设备有限公司 | SMC molding compound sheet overturning and conveying equipment |
| CN117206769A (en) * | 2023-11-09 | 2023-12-12 | 华建重工有限公司 | Single-double-beam crane boom manufacturing, forming and welding equipment and welding method thereof |
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| CN117206769A (en) * | 2023-11-09 | 2023-12-12 | 华建重工有限公司 | Single-double-beam crane boom manufacturing, forming and welding equipment and welding method thereof |
| CN117206769B (en) * | 2023-11-09 | 2024-01-26 | 华建重工有限公司 | Single-double-beam crane boom manufacturing, forming and welding equipment and welding method thereof |
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| Publication number | Publication date |
|---|---|
| CN116252093B (en) | 2023-07-07 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Welding fixture for loader arm Granted publication date: 20230707 Pledgee: Shandong Laizhou Rural Commercial Bank Co.,Ltd. Pledgor: SHANDONG MINGYU HEAVY INDUSTRY MACHINERY Co.,Ltd. Registration number: Y2024980022472 |
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