CN215280477U - Welding detection device of drive shaft - Google Patents

Abstract

The utility model provides a welding detection device of a driving shaft, which comprises a spot welding tool, a welding unit and a detection unit, wherein the spot welding tool is used for positioning a central shaft and a plurality of connecting sheets on a driving shaft workpiece to be formed and spot-welding the central shaft and the connecting sheets together by a spot welding robot; the welding unit comprises a full-welding tool and a welding gun structure, the drive shaft workpiece after spot welding is installed on the full-welding tool, and the full-welding is carried out on the drive shaft workpiece through the welding gun structure to form a finished drive shaft workpiece; the detection unit is used for detecting the size of the driving shaft workpiece; the utility model provides a pair of welding set of drive shaft has overcome the defect that current drive shaft welding quality is poor, welding efficiency is low and detection efficiency is low.

Description

Welding detection device of drive shaft

Technical Field

The utility model relates to a drive shaft welding field especially relates to a welding detection device of drive shaft.

Background

The driving shaft is an important key accessory on the circuit breaker, is connected with a mechanical transmission part on an electrical switch, and directly determines the success or failure of each action of the circuit breaker according to each position and angle of the mechanical transmission part. Referring to fig. 1, the driving unit 7 includes a central shaft 18, a plurality of connecting pieces 14 are sleeved on the central shaft 18, the connecting pieces 14 are disposed at a certain angle with the central shaft 18, one or more mounting holes 38 are disposed on the connecting pieces 14, and the connecting pieces 14 are welded to the central shaft 18 in a welding manner during processing.

At present, in the field of welding of driving shafts, most manual welding modes are adopted, the problem of unstable quality exists, and the welding quality of the driving shafts cannot be guaranteed. Moreover, the driving shafts are different in length and are in a plurality of series, the shortest driving shaft is 261mm, the longest driving shaft is 1009mm, the weight is heavier, the manual welding work intensity is high, the welding time is long, and the efficiency is low; meanwhile, the staff is easy to fatigue, and potential safety hazards exist all the time. After the welding of current drive shaft is accomplished, adopt the tongue to measure, not only measure not easily controllable, inefficiency moreover.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a welding detection device of drive shaft is provided to overcome the defect that current drive shaft welding quality is poor, welding efficiency is low and detection efficiency is low.

(II) technical scheme

For solving the technical problem, the utility model provides a welding detection device of drive shaft, include:

the spot welding tool is used for positioning a central shaft and a plurality of connecting pieces on a driving shaft workpiece to be formed and positioning the central shaft and the connecting pieces together through spot welding by a spot welding robot;

the welding unit comprises a machine table, and a full-length welding tool and a welding gun structure which are arranged on the machine table; mounting the semi-finished driving shaft workpiece subjected to spot welding at the spot welding tool on the full-welding tool, and performing full welding on the semi-finished driving shaft workpiece through the welding gun structure to form a finished driving shaft workpiece;

and the detection unit is used for detecting the dimensional accuracy of the finished driving shaft workpiece.

Furthermore, the spot welding tool comprises a base plate and a plurality of positioning plates which are arranged on the base plate at intervals along the linear direction, one side of each positioning plate is provided with a positioning surface, a positioning hole is formed in each positioning surface, and a first positioning pin penetrates through the connecting piece and is inserted into the positioning hole; one side of the positioning plate, which is close to the positioning surface, is provided with a pressing sheet in a sliding manner, and the pressing sheet can slide towards the positioning plate to enable the connecting sheet to abut against the positioning surface.

Furthermore, support plates are symmetrically arranged on two sides of the base plate, and a plurality of positioning plates are positioned between the two support plates; the supporting plate is provided with a telescopic sleeve, and the central shaft is clamped between the two telescopic sleeves. The plurality of pressing pieces are connected through a linkage mechanism; the linkage mechanism comprises sliding plates which are arranged on two sides of the base plate respectively and can slide, the two sliding plates are connected through connecting rods on two sides, and the plurality of pressing pieces are fixed on the connecting rods in sequence.

Furthermore, the welding gun structure comprises a welding gun seat, a left welding gun and a right welding gun which are oppositely arranged, a welding platform is arranged on the machine platform, a cross rod is arranged on the rear side of the welding platform, and the welding gun seat is slidably arranged on the cross rod; the welding gun seat is provided with a left sliding column and a right sliding column respectively, the left sliding column is provided with a rotatable left sliding rail in a sliding manner, and the left sliding rail is provided with the left welding gun in a sliding manner; and the right sliding column is provided with a rotatable right sliding rail in a sliding manner, and the right sliding rail is provided with the right welding gun in a sliding manner.

Further, the full-length welding tool comprises a first chuck arranged on one side of the machine table, a second positioning pin is arranged at one end of the first chuck, and a tip matched with the first chuck is slidably arranged on one side of the first chuck; a supporting seat is slidably mounted between the first chuck and the tip, and a V-shaped groove for supporting is formed in the supporting seat.

Furthermore, the detection unit comprises a detection platform and a contact, a finished driving shaft workpiece is placed on the detection platform, and the contact is used for detecting the interval between two adjacent connecting sheets; a second chuck is arranged on the detection platform, and a supporting sleeve is arranged on one side of the second chuck; the rear side of the detection platform is provided with a display device in a sliding manner, and the display device is provided with a contact for detection.

(III) advantageous effects

The utility model provides a welding detection device of a driving shaft, a driving shaft workpiece to be formed is subjected to spot welding positioning central shaft and a connecting sheet through a spot welding tool, then the positioned semi-finished driving shaft workpiece is transferred to a welding unit for full welding, and finally the size of the formed driving shaft workpiece is detected; the welding detection device is used for replacing the traditional manual welding, so that the welding strength is reduced, the skill requirements of workers are reduced, and the welding and detection efficiency is improved; the spot welding tool and the full-length welding tool are matched, so that the positioning is accurate, and the welding quality is ensured; the defects of poor welding quality, low welding efficiency and low detection efficiency of the conventional driving shaft are overcome.

Drawings

Fig. 1 is a perspective view of a drive shaft workpiece of a welding detection device for a drive shaft according to the present invention;

fig. 2 is a perspective view of a second process spot welding tool of the welding detection device of the driving shaft of the present invention;

fig. 3 is a schematic structural view of a second process spot welding tool of a welding detection device for a driving shaft according to the present invention;

fig. 4 is a partial perspective view of a second process spot welding tool of the welding detection device for the driving shaft of the present invention;

fig. 5 is a perspective view of the welding detection device for the driving shaft according to the present invention when the spot welding tool of the second process is used;

fig. 6 is a perspective view of a third process spot welding tool of the welding detection device of the driving shaft of the present invention;

fig. 7 is a perspective view of the first process spot welding tool of the welding detection device for the driving shaft of the present invention;

fig. 8 is a perspective view of a welding unit of a welding detection device for a driving shaft according to the present invention during welding;

fig. 9 is a schematic structural view of a welding unit of a welding detection device for a driving shaft according to the present invention;

fig. 10 is a perspective view of a welding unit of a welding detection device for a driving shaft according to the present invention;

FIG. 11 is an enlarged view of portion A of FIG. 10;

fig. 12 is a perspective view of the detection unit of the welding detection device for the driving shaft according to the present invention;

fig. 13 is a perspective view of a detection unit of a welding detection device for a drive shaft according to the present invention;

FIG. 14 is an enlarged view of portion B of FIG. 13;

the corresponding part names for the various reference numbers in the figures are: 1. a welding unit; 2. spot welding tooling; 3. a machine platform; 4. welding a platform; 5. a left weld gun; 6. a right welding gun; 7. driving a shaft workpiece; 8. fully welding a tool; 9. a base plate; 10. positioning a plate; 11. positioning the surface; 12. positioning holes; 13. a first positioning pin; 14. connecting sheets; 15. a compression sheet; 16. a support plate; 17. a telescopic sleeve; 18. a central shaft; 19. a slide plate; 20. a connecting rod; 21. a cross bar; 22. a welding gun seat; 23. a left traveler; 24. a right traveler; 25. a left slide rail; 26. a right slide rail; 27. a first chuck; 28. a second positioning pin; 29. a tip; 30. a supporting seat; 31. a V-shaped groove; 32. a detection unit; 33. a detection platform; 34. a second chuck; 35. a support sleeve; 36. a display device; 37. a contact; 38. and (7) installing holes.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 2 to 14, the embodiment provides a welding detection device for a driving shaft, which includes a spot welding tool 2, a welding unit 1 and a detection unit 32, wherein the spot welding tool 2 is used for positioning a central shaft 18 and a plurality of connecting pieces 14 on a driving shaft workpiece 7 to be formed, and spot welding the central shaft 18 and the connecting pieces 14 together by a spot welding robot; the welding unit 1 comprises a machine table 3, and a full-length welding tool 8 and a welding gun structure which are arranged on the machine table 3; mounting the semi-finished driving shaft workpiece 7 subjected to spot welding at the spot welding tool 2 on a full-welding tool 8, and performing full-welding on the semi-finished driving shaft workpiece by using a welding gun structure to form a finished driving shaft workpiece 7; the detection unit 32 is used to detect the dimensional accuracy of the finished drive shaft workpiece 7.

Referring to fig. 1, because the structure of drive shaft is more complicated, the interval between two adjacent connection pieces 14 is too little, and connection piece 14 has certain angle with center pin 18, for the design of spot welding frock, the drive shaft adopts three process to accomplish spot welding in this embodiment, and every process all corresponds a spot welding frock, and every spot welding frock is used for welding some connection pieces, thereby accomplishes the welding of all connection pieces through the cooperation of three spot welding frock. Although three spot welding tools are used, the positioning principle and the structural form of the three spot welding tools are almost the same, and one or a plurality of spot welding tools can be used according to the structure of the driving shaft in actual use, and the spot welding tool in the second process is described below.

Referring to fig. 2 to 7, the spot welding tool 2 includes a base plate 9 and a plurality of positioning plates 10 disposed on the base plate 9 at intervals along a linear direction, one side of the positioning plate 10 is provided with a positioning surface 11, the positioning surface 11 is provided with one or more positioning holes 12, and a first positioning pin 13 penetrates through a connecting plate 14 and is inserted into the positioning hole 12; one side of the positioning plate 10 close to the positioning surface 11 is slidably provided with a pressing sheet 15, and the pressing sheet 15 can slide towards the positioning plate 10 to enable the connecting sheet 14 to abut against the positioning surface 11.

Referring to fig. 2 to 7, support plates 16 are symmetrically disposed on two sides of the base plate 9, and a plurality of positioning plates 10 are disposed between the two support plates 16; the support plate 16 is provided with a telescopic sleeve 17, and a central shaft 18 is clamped between the two telescopic sleeves 17. The control switch and the cylinder that are connected are installed to the outside end of backup pad 16, and the cylinder is connected with telescopic sleeve 17, and through the flexible of control switch control telescopic sleeve 17 to go up unloading. The plurality of pressing pieces 15 are connected through a linkage mechanism; the linkage mechanism comprises sliding plates 19 which are respectively arranged on two sides of the base plate 9 and can slide, the two sliding plates 19 are connected through connecting rods 20 on two sides, and the plurality of pressing pieces 15 are sequentially fixed on the connecting rods 20. The slide plate 19 on the left side is connected with an air cylinder, and the air cylinder is controlled by a control switch on the supporting plate 16 to drive the pressing sheet 15 to clamp or open.

Through the matching of the positioning plate, the first positioning pin and the pressing piece, the end part of the first positioning pin penetrates through the connecting pieces and is inserted into the positioning hole, so that the angle of each connecting piece relative to the central shaft is ensured, and the processing requirement is met; the connecting piece is supported by the positioning surface through the pressing piece to be accurately positioned and clamped, the positioning is accurate, the welding effect is good, the feeding and discharging speed is high, the operation is simple and convenient, and the machining efficiency can be effectively improved.

Referring to fig. 8 to 11, the welding gun structure includes a welding gun base 22, and a left welding gun 5 and a right welding gun 6 which are oppositely disposed, a welding platform 4 is disposed on the machine platform 3, a cross bar 21 is disposed at the rear side of the welding platform 4, and the welding gun base 22 is slidably mounted on the cross bar 21; the welding gun seat 22 is respectively provided with a left sliding column 23 and a right sliding column 24, the left sliding column 23 is slidably provided with a rotatable left sliding rail 25, and the left sliding rail 25 is slidably provided with a left welding gun 5; the right sliding column 24 is provided with a rotatable right sliding rail 26 in a sliding way, and the right welding gun 6 is arranged on the right sliding rail 26 in a sliding way. The left sliding column 23 and the right sliding column 24 are identical in structure, the left sliding rail 25 and the right sliding rail 26 are identical in structure, the left welding gun 5 and the right welding gun 6 are identical in structure and adopt laser welding heads, laser welding has the advantages of being small in welding deformation, high in efficiency and the like, and welding quality and welding efficiency are guaranteed.

Referring to fig. 8 to 11, the full-length welding tool 8 includes a first chuck 27 installed on one side of the machine table 3, a second positioning pin 28 is disposed at one end of the first chuck 27, and the second positioning pin 28 is used for being clamped in a mounting hole 38 of the head end connecting piece 14, so that the central shaft 18 is prevented from being displaced when the first chuck 27 rotates, and the welding quality is ensured. An apex 29 matched with the first chuck 27 is arranged on one side of the first chuck 27 in a sliding way; a support seat 30 is slidably mounted between the first chuck 27 and the center 29, and a V-shaped groove 31 for supporting is arranged on the support seat 30.

The welding unit has stable quality, high efficiency, low requirement on the skill of workers and low labor intensity; one end of the clamping head adopts a tip, and the other end of the clamping head adopts a first chuck, so that the clamping is rapid; the second positioning pin is arranged, so that the driving shaft can be prevented from being dislocated, the positioning is accurate, and the welding quality is ensured; the welding angle can be randomly input as an arc starting point, the left welding gun and the right welding gun can be symmetrically welded, the thermal deformation phenomenon generated by welding is eliminated as far as possible, and the welding quality is good; the welding unit is used for replacing the traditional manual welding, so that the welding strength is reduced, and the skill requirement of staff is lowered.

Referring to fig. 12 to 14, the detection unit 32 includes a detection platform 33 and a contact 37, the finished driving shaft workpiece 7 is placed on the detection platform 33, and the contact 37 is used for detecting the interval between two adjacent connecting sheets 14; a second chuck 34 is arranged on the detection platform 33, and a support sleeve 35 is arranged on one side of the second chuck 34; a display device 36 is slidably mounted on the rear side of the detection platform 33, a contact 37 for detection is mounted on the display device 36, and the contact 37 adopts a linear grating contact.

The detection unit has the advantages of fast measurement, high efficiency, low measurement skill and low labor intensity; the product is quickly fixed on the tool by utilizing the characteristic of quick clamping of the second chuck; the distance between each connecting sheet can be rapidly measured by utilizing the linear grating contact; the measurement results are directly displayed on a display screen and can be directly read by visual observation.

When in use, a plurality of connecting pieces 14 are sleeved on a central shaft 18, and then the central shaft 18 is arranged between two telescopic sleeves 17 of the spot welding tool 2; then moving and rotating the connecting piece 14 to enable the mounting hole 38 of the connecting piece 14 to correspond to the positioning hole 12 of the positioning plate 10, and inserting one end of the first positioning pin 13 into the positioning hole 12 after penetrating through the mounting hole 38; finally, the connecting piece 14 is abutted against the positioning surface 11 by sliding the pressing piece 15, so that the spot welding positioning is completed; then spot welding is performed on one side of the connecting piece 14 in the circumferential direction by a spot welding robot one by one, so that the center shaft 18 and the connecting piece 14 are spot-welded and positioned together.

Then, clamping one end of the central shaft 18 in a first chuck 27 of the full-welding tool 8, inserting a second positioning pin 28 on one side of the first chuck 27 into a mounting hole 38 of the end connecting piece 14, and moving the center 29 to abut against the central shaft 18; finally, moving the support seat 30 to a proper position, and placing the central shaft 18 in the V-shaped groove 31 of the support seat 30; when full welding is carried out, the left welding gun 5 and the right welding gun 6 are oppositely arranged and form an included angle of 45 degrees with the connecting sheet 14; firstly, resetting is carried out, after the resetting, the left welding gun 5 welds one side of the connecting sheet 14 at a left arc starting point, and meanwhile, the first chuck 27 drives the central shaft 18 to rotate for a circle, so that left full welding is completed; then, the first chuck 27 drives the central shaft 18 to rotate for half a turn, the right welding gun 6 welds the other side of the same connecting piece 14 by using a right arc starting point, and simultaneously the first chuck 27 drives the central shaft 18 to rotate for a circle, so that right full welding is completed; resetting after the connecting sheet 14 is fully welded left and right; finally, according to the full welding mode, the connecting sheets 14 are fully welded one by one from left to right;

finally, the drive shaft workpiece 7 after full welding is mounted between the second chuck 34 and the support sleeve 35 of the detection unit 32, and the distance between two adjacent connecting pieces 14 is detected by abutting the contact 37 against the connecting pieces 14.

According to the welding detection device for the driving shaft, a driving shaft workpiece to be formed is subjected to spot welding positioning of a central shaft and a connecting sheet through a spot welding tool, the positioned semi-finished driving shaft workpiece is transferred to a welding unit for full welding, and finally the size of the formed driving shaft workpiece is detected; the welding detection device is used for replacing the traditional manual welding, so that the welding strength is reduced, the skill requirements of workers are reduced, and the welding and detection efficiency is improved; the spot welding tool and the full-length welding tool are matched, so that the positioning is accurate, and the welding quality is guaranteed.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A welding detection device for a drive shaft, comprising:

the spot welding tool (2) is used for positioning a central shaft (18) and a plurality of connecting pieces (14) on a driving shaft workpiece (7) to be formed and positioning the central shaft (18) and the connecting pieces (14) together in a spot welding mode through a spot welding robot;

the welding unit (1) comprises a machine table (3), and a full-length welding tool (8) and a welding gun structure which are arranged on the machine table (3); mounting the semi-finished driving shaft workpiece (7) subjected to spot welding at the spot welding tool (2) on the full-welding tool (8), and performing full-welding on the semi-finished driving shaft workpiece through the welding gun structure to form the finished driving shaft workpiece (7);

and a detection unit (32) for detecting the dimensional accuracy of the finished drive shaft workpiece (7).

2. The welding detection device for a drive shaft according to claim 1, wherein: the spot welding tool (2) comprises a base plate (9) and a plurality of positioning plates (10) which are arranged on the base plate (9) at intervals along the linear direction, one side of each positioning plate (10) is provided with a positioning surface (11), each positioning surface (11) is provided with a positioning hole (12), and a first positioning pin (13) penetrates through a connecting piece (14) and is inserted into each positioning hole (12); one side, close to the positioning surface (11), of the positioning plate (10) is provided with a pressing sheet (15) in a sliding mode, and the pressing sheet (15) can slide towards the positioning plate (10) to enable the connecting sheet (14) to abut against the positioning surface (11).

3. The welding detection device for a drive shaft according to claim 2, wherein: supporting plates (16) are symmetrically arranged on two sides of the base plate (9), and the positioning plates (10) are positioned between the two supporting plates (16); the support plate (16) is provided with a telescopic sleeve (17), and the central shaft (18) is clamped between the two telescopic sleeves (17).

4. The welding detection device for a drive shaft according to claim 2, wherein: the pressing sheets (15) are connected through a linkage mechanism; the linkage mechanism comprises sliding plates (19) which are arranged on two sides of the base plate (9) respectively and can slide, the two sliding plates (19) are connected through connecting rods (20) on two sides, and the pressing pieces (15) are fixed on the connecting rods (20) in sequence.

5. The welding detection device for a drive shaft according to claim 1, wherein: the welding gun structure comprises a welding gun seat (22), a left welding gun (5) and a right welding gun (6) which are oppositely arranged, a welding platform (4) is arranged on the machine table (3), a cross rod (21) is arranged on the rear side of the welding platform (4), and the welding gun seat (22) is slidably mounted on the cross rod (21); the welding gun seat (22) is provided with a left sliding column (23) and a right sliding column (24) respectively, the left sliding column (23) is provided with a rotatable left sliding rail (25) in a sliding manner, and the left welding gun (5) is arranged on the left sliding rail (25) in a sliding manner; slidable mounting has rotatable right slide rail (26) on right side traveller (24), slidable mounting has on right side slide rail (26) right side welder (6).

6. The welding detection device for a drive shaft according to claim 1, wherein: the full-length welding tool (8) comprises a first chuck (27) arranged on one side of the machine table (3), one end of the first chuck (27) is provided with a second positioning pin (28), and an apex (29) matched with the first chuck (27) is slidably arranged on one side of the first chuck (27); a supporting seat (30) is slidably mounted between the first chuck (27) and the tip (29), and a V-shaped groove (31) for supporting is formed in the supporting seat (30).

7. The welding detection device for a drive shaft according to claim 1, wherein: the detection unit (32) comprises a detection platform (33) and a contact (37), a finished driving shaft workpiece (7) is placed on the detection platform (33), and the contact (37) is used for detecting the interval between two adjacent connecting sheets (14); a second chuck (34) is mounted on the detection platform (33), and a support sleeve (35) is mounted on one side of the second chuck (34); the rear side of the detection platform (33) is provided with a display device (36) in a sliding manner, and the display device (36) is provided with a contact (37) for detection.

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