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CN-121972782-A - Alloy steel mechanical fitting fixed-position welding device

CN121972782ACN 121972782 ACN121972782 ACN 121972782ACN-121972782-A

Abstract

The invention relates to the technical field of plasma arc welding and discloses an alloy steel mechanical accessory positioning welding device which comprises a welding table and a driving disc arranged on the top surface of the welding table, wherein a welding seat is fixedly arranged on the top surface of the welding table at the side edge of the driving disc, a plasma arc welding gun is arranged at the movable end of the welding seat, a plurality of uniformly distributed mounting holes are formed in the top surface of the driving disc, and a plurality of supports are arranged on the top surface of the driving disc. According to the invention, the position of the support is adjusted, the support is coaxially arranged in the mounting hole by matching with the limiting plate and the locating plate, the spring telescopic rod is attached to the outer wall of the workpiece through the spring telescopic rod and the pressing strip, the spring telescopic rod is fixed by the locking frame, multi-point adaptive clamping can be formed aiming at irregular shapes of the special-shaped workpiece, meanwhile, the angle locking design of the locking cone pulley and the locking cap is realized, the deviation of the workpiece in welding is avoided, the problem of difficult fixation of the special-shaped alloy steel fitting is solved, the accurate and firm positioning of the workpiece before welding is ensured, and a foundation is laid for high-quality welding.

Inventors

  • ZHOU DEBING
  • WANG XIFEI
  • HUANG CHANGHONG
  • ZHANG DABO

Assignees

  • 湖北万鑫精密铸锻股份有限公司

Dates

Publication Date
20260505
Application Date
20260303

Claims (10)

  1. 1. The utility model provides an alloy steel mechanical part fixed-position welding device, includes welding bench (11) and sets up driving disk (12) at welding bench (11) top surface, the top surface of welding bench (11) is located driving disk (12) side position department fixed mounting has welding seat (13), the expansion end of welding seat (13) is provided with plasma arc welder (14), mounting hole (15) of a plurality of evenly distributed have been seted up to driving disk (12) top surface, driving disk (12) top surface is provided with a plurality of support (21), wherein top surface fixed mounting of support (21) has fixed sleeve (22), the inner wall slidable mounting of fixed sleeve (22) has an adjustment cylinder (23), the top fixed mounting of adjustment cylinder (23) has supporting shell (24), the tip of supporting shell (24) is through the mounting bracket rotation installation has rolling stock (51), the side fixed mounting of rolling stock (51) has positioning box (25), be provided with the installation component on support (21), be provided with between fixed sleeve (22) and adjustment cylinder (23) adjusting component, supporting shell (24) and positioning box (25) are provided with between the positioning component and the positioning box (25); The positioning assembly comprises a plurality of uniformly distributed spring telescopic rods (61) fixedly mounted on the inner top surface of a positioning box (25), the telescopic ends of the spring telescopic rods (61) penetrate through the bottom surface of the positioning box (25) and are fixedly provided with sliding plates (63), pressing strips (62) are arranged at the telescopic ends of the plurality of spring telescopic rods (61) in the same row, and sliding grooves (64) in sliding connection with the sliding plates (63) are formed in the top surfaces of the pressing strips (62).
  2. 2. The alloy steel machine fitting fixed-position welding device according to claim 1, wherein the mounting assembly comprises a driving screw (31) penetrating through the support (21), the driving screw (31) is rotationally connected with the support (21), a threaded ring (32) is screwed at the bottom end of the driving screw (31), a plurality of supports (33) distributed in an annular array are fixedly mounted on the bottom surface of the support (21), limiting plates (34) are rotatably mounted at the bottom ends of the supports (33), a top plate (35) is hinged to the outer wall of the threaded ring (32), the end portion of the top plate (35) is hinged to the end portion of the limiting plates (34), and a positioning plate (36) is fixedly mounted on the top surface of the limiting plates (34).
  3. 3. The welding fixture for alloy steel machine parts according to claim 2, wherein the positioning plate (36) is arc-shaped, and the side surface of the positioning plate (36) is attached to the inner wall of the mounting hole (15).
  4. 4. The alloy steel machine fitting fixed-position welding device according to claim 2, wherein the adjusting component comprises a supporting sleeve (41) fixedly installed on the top surface of the support (21) and coaxially arranged with the driving screw (31), a threaded sleeve (42) is screwed on the outer wall of the supporting sleeve (41), two guide grooves (43) are symmetrically formed in the inner wall of the fixing sleeve (22), two guide blocks (44) which are in sliding connection with the guide grooves (43) are symmetrically and fixedly installed at the bottom end of the adjusting cylinder (23), a connecting frame (45) is rotatably sleeved on the outer wall of the top end of the threaded sleeve (42), and the outer wall of the connecting frame (45) is rotatably connected with the inner wall of the adjusting cylinder (23).
  5. 5. The welding fixture for alloy steel machine parts according to claim 4, wherein the top end of the threaded sleeve (42) passes through the top surface of the adjusting cylinder (23) and is fixedly provided with a swivel, and the top end of the driving screw (31) passes through the top opening of the threaded sleeve (42) and is fixedly provided with a knob.
  6. 6. The welding fixture for positioning alloy steel mechanical parts according to claim 1, wherein the locking assembly comprises a supporting cylinder (52) fixedly installed on the inner wall of the rotating seat (51), two ends of the supporting cylinder (52) penetrate through two side surfaces of the installation frame, two ends of the supporting cylinder (52) are respectively provided with a sliding rod (53) in a penetrating mode, one end of the sliding rod (53) located on the outer side of the supporting cylinder (52) is fixedly provided with a locking cone (54), the inner wall of the supporting shell (24) is slidably provided with a sliding frame (55), one end of the sliding frame (55) penetrates through the side surface of the supporting shell (24) and is fixedly provided with two locking caps (57) corresponding to the locking cone (54), two springs I (56) are symmetrically and fixedly installed between the side surface of the sliding frame (55) and the inner wall of the supporting shell (24), two springs II (59) are sleeved on the outer wall of the sliding rod (53), and two ends of the springs II (59) are fixedly connected with the sliding rod (53) and the supporting cylinder (52) respectively.
  7. 7. The welding fixture for alloy steel machine parts according to claim 6, wherein the inner wall of the locking cap (57) is fixedly provided with a plurality of locking blocks (58) distributed in an annular array, and the outer wall of the locking cone (54) is provided with a plurality of locking clamping grooves which correspond to the locking blocks (58) and are distributed in an annular array.
  8. 8. The welding fixture for alloy steel machine parts according to claim 6, wherein an operation screw (510) is provided on the top surface of the support case (24) in a penetrating manner, the operation screw (510) is screwed to the penetrating portion, and a cam (511) corresponding to the carriage (55) is fixedly installed at the bottom end of the operation screw (510).
  9. 9. The welding device for positioning alloy steel mechanical parts according to claim 6, wherein the inner bottom surface of the positioning box (25) is slidably provided with a locking frame (71), the outer wall of the telescopic end of the spring telescopic rod (61) is provided with a plurality of locking grooves (73) distributed in a linear array, the side surface of the locking frame (71) is fixedly provided with a plurality of locking rods (72) corresponding to the spring telescopic rod (61), one end of the sliding rod (53) positioned at the inner side of the supporting cylinder (52) is fixedly provided with a driving wedge block (74), two connecting rods (75) symmetrically penetrate through the rotating seat (51) and the positioning box (25), one end of each connecting rod (75) is fixedly connected with the top surface of the corresponding locking frame (71), and the other end of each connecting rod is fixedly provided with a driving wedge block (76) corresponding to the driving wedge block (74).
  10. 10. The welding fixture for alloy steel machine parts according to claim 1, wherein the bottom surface of the bead (62) is provided with anti-skid patterns.

Description

Alloy steel mechanical fitting fixed-position welding device Technical Field The invention relates to the technical field of plasma arc welding, in particular to a positioning welding device for alloy steel mechanical accessories. Background Plasma arc welding is a welding method that utilizes a compressed arc (i.e., a plasma arc) as a heat source to locally melt a workpiece and fill (or not fill) a welding wire to achieve a metallic connection. The core is that the electric arc is subjected to triple actions of mechanical compression, thermal compression and electromagnetic compression by a special welding gun structure, and the energy density is far higher than that of common electric arc welding. Through searching, china patent with publication number CN109382607A discloses a positioning and welding clamping table, which comprises an adjusting and positioning chassis, a limiting boss and a welding plane ring, wherein the adjusting and positioning chassis is square in shape, the adjusting and positioning chassis is made of steel, a positioning through hole is formed in the center of the adjusting and positioning chassis, the limiting boss is arranged on the outer edge of the positioning through hole, the welding plane ring is arranged on the upper surface of the limiting boss, adjusting holes are formed in four side faces of the adjusting and positioning chassis and are communicated with the positioning through hole, and adjusting columns are arranged in the adjusting holes. The whole structural design is simple and reasonable, all parts are mutually matched, the product requirement can be matched, the effect of supporting, clamping or positioning the workpiece part for the preparation of positioning welding can be achieved, the joint of the point or the surface of the preparation of welding of the workpiece part is arranged, after the welding is completed through the welding fixture, the workpiece part forms a complete workpiece through welding, but the following defects still exist in the practical use of the scheme: The device adopts fixing means such as adjusting column, reference column, etc., and this kind of mode can be through adjusting the height of adjusting column, utilize the benchmark locate function of reference column, cooperate the centre gripping of horizontal direction to the standard component or the simple geometry work piece of regular structure, appearance symmetry, effectively realizes the stable fixed of work piece, satisfies the production demand. However, when facing the special-shaped workpiece, because the appearance of the special-shaped workpiece lacks a uniform reference surface and a regular stress point, the adjusting column and the positioning column are difficult to find the adaptive supporting and positioning positions, a comprehensive and balanced supporting system cannot be formed, the special-shaped workpiece is difficult to form effective fit with the irregular surface of the special-shaped workpiece, sufficient clamping stability cannot be provided, the workpiece is easily deviated and inclined due to uneven distribution of clamping force, and the machining precision and the quality of the finished product of the workpiece are influenced. Disclosure of Invention The invention aims to solve the technical problems that in the prior art, fixing of a special-shaped workpiece through an adjusting column, a positioning column and the like is difficult, and firm fixing of a component is difficult to achieve only by means of horizontal clamping force. In order to achieve the aim, the alloy steel mechanical fitting positioning welding device comprises a welding table and a driving disc arranged on the top surface of the welding table, wherein a welding seat is fixedly arranged on the top surface of the welding table at the side edge of the driving disc, a plasma arc welding gun is arranged at the movable end of the welding seat, a plurality of uniformly distributed mounting holes are formed in the top surface of the driving disc, a plurality of supports are arranged on the top surface of the driving disc, a fixing sleeve is fixedly arranged on the top surface of each support, an adjusting cylinder is slidably arranged on the inner wall of each fixing sleeve, a supporting shell is fixedly arranged on the top end of each adjusting cylinder, a rotating seat is rotatably arranged at the end part of each supporting shell through a mounting frame, a positioning box is fixedly arranged on the side surface of each rotating seat, a mounting assembly is arranged on each support, an adjusting assembly is arranged between each fixing sleeve and each adjusting cylinder, a locking assembly is arranged between each supporting shell and each rotating seat, and a positioning assembly is arranged on the inner side of each positioning box; The positioning assembly comprises a plurality of uniformly distributed spring telescopic rods fixedly mounted on the inner top surface of the positioning