CN214291699U - Welding workstation for welding axle body - Google Patents

Abstract

The utility model discloses a welding workstation for welding an axle body, which comprises a base, a pair of base stations, a pair of welding manipulators and a fixed platform, the lifting platform, the floating platform, divide mechanism and lifting drive piece in, a pair of base station is adorned at the both ends of base admittedly, it is used for pressing from both sides the rotatory mechanism that presss from both sides of the initiative rotation that is used for pressing from both sides dress axle body one axle tip and drives the axle body rotatory to slide to be equipped with on a base station, it is used for pressing from both sides the driven rotation that is used for pressing from both sides dress axle body another axle tip and rotates along with the axle body to slide to be equipped with on another base station, a pair of welding machines hand is installed on the base, fixed platform installs on the base and is located between a pair of base stations, the lifting drive piece is installed in fixed platform, the lifting platform sets up at fixed platform top and is connected with the output of lifting drive piece, the floating platform is installed at the lifting platform top, divide mechanism to install at the floating platform top. The welding device has the advantages of simple and reliable structure, ingenious design, accurate positioning and capability of improving the welding quality and the welding efficiency.

Description

Welding workstation for welding axle body

Technical Field

The utility model discloses the welding technique of main axle body especially relates to a be used for axle body welded weldment work station.

Background

The axle body includes the axle at axle housing and axle housing both ends, and the axle at both ends needs to weld with axle housing both ends, forms the annular welding.

In the prior art, axle shafts are manually positioned at two ends of an axle housing of an axle and then welded. In the mode, automatic annular full welding cannot be realized, and only manual welding can be adopted, so that the welding efficiency is influenced; and the accurate positioning of axle shaft and axle housing can not be realized, welding quality has been influenced. And, the location of its axle housing is vital, and the axle housing involves the location of height, left and right sides and fore-and-aft direction when welding with the axle shaft, does not have the mechanism that realizes the accurate location of axle housing height, left and right sides and fore-and-aft direction simultaneously among the prior art, mainly relies on manual observation to adjust. The welding quality and the welding efficiency are affected.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a simple structure reliable, design benefit, accurate location, can improve welding quality and welding efficiency be used for axle body welded weldment work station.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a welding workstation for welding an axle body comprises a base, a pair of base stations, a pair of welding manipulators, a fixed platform, a lifting platform, a floating platform, a centering mechanism and a lifting driving piece, wherein the base stations are fixedly arranged at two ends of the base, a driving rotary clamping mechanism for clamping one shaft end part of the axle body and driving the axle body to rotate is arranged on one base station in a sliding manner, a driven rotary clamping mechanism for clamping the other shaft end part of the axle body and rotating along with the axle body is arranged on the other base station in a sliding manner, the pair of welding manipulators are arranged on the base and correspond to required welding positions of the axle body, the fixed platform is arranged on the base and positioned between the base stations, the lifting driving piece is arranged in the fixed platform, the lifting platform is arranged at the top of the fixed platform and is connected with the output end of the lifting driving piece, and the floating platform is arranged at the top of the lifting platform, the center distribution mechanism is installed at the top of the floating platform.

As a further improvement of the above technical solution:

the active rotating clamping mechanism comprises a first sliding table, a first driving motor, an active rotating assembly and a first clamping piece, wherein the first driving motor is installed on a base table of an active end, the first sliding table is installed on the base table of the active end in a sliding mode and is connected with the output end of the first driving motor, the active rotating assembly is installed in the first sliding table, and the first clamping piece is installed on the active rotating assembly.

The initiative rotating assembly comprises a rotating motor, a fixing frame, a first fixing sleeve, an initiative rotating shaft and an initiative rotating frame, wherein the fixing frame is installed in a first sliding table, the rotating motor and the first fixing sleeve are installed on the fixing frame, the initiative rotating shaft is sleeved in the first fixing sleeve and is connected with the output end of the rotating motor, the initiative rotating frame is installed on the initiative rotating shaft, and a first clamping piece is installed on the initiative rotating frame.

The first clamping piece comprises a first mounting seat and a pair of first V-shaped clamping jaws, and the pair of first V-shaped clamping jaws are slidably mounted on the first mounting seat.

Driven rotatory clamp dress mechanism includes second slip table, second driving motor, driven rotating assembly and second holder, second driving motor installs on the base station of driven end, the second slip table dress is connected on the base station of this end and with second driving motor's output in the slip, driven rotating assembly installs in the second slip table, the second holder is installed on driven rotating assembly.

Driven rotating assembly includes the fixed cover of second, driven spindle and driven revolving rack, the fixed cover of second is adorned admittedly in the second slip table, the driven spindle suit is in the fixed cover of second, driven revolving rack installs on driven spindle, the second holder is installed on driven revolving rack.

The second clamping piece comprises a second mounting seat and a pair of second V-shaped clamping jaws, and the second V-shaped clamping jaws are slidably mounted on the second mounting seat.

And a positioning mechanism for positioning the driven rotating shaft is further installed in the second sliding table.

Positioning mechanism includes cylinder, bolt and positioning disk, the locating hole has been seted up on the positioning disk, the positioning disk is adorned admittedly on driven rotating shaft, the cylinder is installed in the second slip table, the bolt is installed at the output of cylinder and is inserted to the locating hole under the cylinder drive.

The lifting platform comprises a lifting plate, a guide sleeve and a lifting guide rod, the guide sleeve is installed at the top of the fixed platform, the lifting guide rod is installed at the bottom of the lifting plate, the lifting guide rod is sleeved in the guide sleeve, and the lifting plate is connected with the output end of the lifting driving piece.

The floating platform comprises a floating plate, a limiting column and a spring, wherein the limiting column is installed on the lifting plate, the spring is sleeved on the limiting column and exceeds the end part of the limiting column, and the floating plate is installed on the spring.

The spring lifting plate is characterized in that a lower limiting table is installed at the top of the lifting plate, an upper limiting table is installed at the bottom of the floating plate, and a gap exists between the upper limiting table and the lower limiting table when the spring is in a normal state.

The centering mechanism comprises a centering motor, a radial positioning group and an axial centering group, wherein the centering motor is installed at the bottom of the floating plate, the radial positioning group is fixedly installed at the top of the floating plate, and the axial centering group is slidably installed at the top of the floating plate and is connected with the output end of the centering motor.

The axial centering group comprises a transmission gear, a pair of transmission plates, a pair of transmission racks and a pair of axial centering tables, the transmission gear is installed on the floating plate, the pair of transmission plates are installed on the top of the floating plate in a sliding mode, one transmission plate is connected with the output end of the centering motor, the pair of transmission racks are installed on the corresponding transmission plates respectively and are meshed with the transmission gear, and the axial centering tables are installed on the corresponding transmission plates respectively.

The bottom of one of the driving plates is provided with a push plate, and the push plate is connected with the output end of the center-dividing motor.

The floating plate is provided with a slide rail, and the pair of transmission plates are arranged on the slide rail in a sliding manner.

The radial positioning group comprises a plurality of radial positioning platforms, and each radial positioning platform is arranged on the floating plate.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a be used for axle body welded weldment work station, during the use, lift driving piece drive lift platform drives floating platform and divides the mechanism to rise to preset position, then place the axle body on dividing the mechanism, floating platform produces the removal downwards this moment, divide the mechanism to drive the axle body and remove and realize dividing the centre, then initiative rotation clamping mechanism and driven rotation clamping mechanism press from both sides two axle ends of dress axle body respectively, at this moment, the lift driving piece descends, floating platform floats to the normal position upwards this moment, make the axle body receive the floating force to move upwards, thereby realize final clamping location; when welding, start the rotatory dress mechanism that presss from both sides of initiative, drive axle body whole rotation, in rotatory, corresponding welding machines hand welds corresponding welding position to realize automatic annular full weld. Overall structure is simple reliable, and design benefit has realized the accurate location of axle and axle housing, realizes the initial positioning on the axle body height through lift driving piece and lift platform, and rethread floating platform accomplishes the final positioning on the axle body height, through dividing the mechanism to realize the axle body about with the location of fore-and-aft direction, has realized the accurate location of each direction, has improved welding quality and welding efficiency.

Drawings

Fig. 1 is the utility model discloses a structural schematic of a weldment work station for axle body welding.

Fig. 2 is a perspective structure schematic diagram of the active rotating clamping mechanism in the welding workstation for welding the axle body.

Fig. 3 is a schematic perspective view (internal structure) of the active rotating clamping mechanism in the welding station for welding the axle body.

Fig. 4 is a perspective structure schematic diagram of the driven rotary clamping mechanism in the welding workstation for welding the axle body.

Fig. 5 is a schematic perspective view (internal structure) of the driven rotating clamping mechanism in the welding station for welding the axle body.

Fig. 6 is a perspective view of the middle positioning module in the welding station for welding the axle body.

Fig. 7 is a schematic perspective view (internal structure) of the middle positioning module in the welding station for welding the axle body according to the present invention.

Fig. 8 is a front view structure diagram of a centering mechanism in a welding workstation for welding an axle body.

Fig. 9 is a structural schematic of overlooking of a centering mechanism in a welding workstation for welding an axle body.

Fig. 10 is a schematic view of the bottom view structure of the centering mechanism in the welding station for welding the axle body according to the present invention.

The reference numerals in the figures denote:

1. a base; 2. a base station; 3. actively rotating the clamping mechanism; 31. a first sliding table; 32. a first drive motor; 33. an active rotation assembly; 331. a rotating electric machine; 332. a fixed mount; 333. a first fixing sleeve; 334. a driving rotating shaft; 335. an active rotating frame; 34. a first clamping member; 341. a first mounting seat; 342. a first V-shaped jaw; 4. a driven rotary clamping mechanism; 41. a second sliding table; 42. a second drive motor; 43. a driven rotating assembly; 431. a second fixing sleeve; 432. a driven rotating shaft; 433. a driven rotating frame; 44. a second clamping member; 441. a second mounting seat; 442. a second V-shaped jaw; 5. welding a manipulator; 6. a fixed platform; 7. a lifting platform; 71. a lifting plate; 72. a guide sleeve; 73. a lifting guide rod; 8. a floating platform; 81. a floating plate; 811. a slide rail; 82. a limiting column; 83. a spring; 84. a lower limit table; 85. an upper limit table; 9. a centering mechanism; 91. a motor for centering; 92. a radial positioning group; 921. a radial positioning stage; 93. axially dividing the group; 931. a transmission gear; 932. a drive plate; 9321. pushing the plate; 933. a drive rack; 934. an axial centering table; 10. a lifting drive member; 11. a positioning mechanism; 111. a cylinder; 112. a bolt; 113. positioning a plate; 1131. and (7) positioning the holes.

Detailed Description

The invention will be described in further detail with reference to the drawings and specific examples.

Fig. 1 to 10 show an embodiment of a welding station for welding axle bodies according to the present invention, which comprises a base 1, a pair of base stations 2, a pair of welding manipulators 5, a fixed platform 6, a lifting platform 7, a floating platform 8, a centering mechanism 9 and a lifting driving member 10, wherein the pair of base stations 2 are fixedly installed at two ends of the base 1, a driving rotating clamping mechanism 3 for clamping one shaft end of the axle body and driving the axle body to rotate is slidably installed on one base station 2, a driven rotating clamping mechanism 4 for clamping the other shaft end of the axle body and rotating with the axle body is slidably installed on the other base station 2, the pair of welding manipulators 5 are installed on the base 1 and correspond to required welding positions of the axle body, the fixed platform 6 is installed on the base 1 and located between the pair of base stations 2, the lifting driving member 10 is installed in the fixed platform 6, lifting platform 7 sets up at fixed platform 6 top and is connected with the output of lift driving piece 10, and floating platform 8 installs at lifting platform 7 top, divides mechanism 9 to install at floating platform 8 top. When the device is used, the lifting driving piece 10 drives the lifting platform 7 to drive the floating platform 8 and the centering mechanism 9 to ascend to a preset position, then the axle body is placed on the centering mechanism 9, the floating platform 8 moves downwards at the moment, the centering mechanism 9 drives the axle body to move to realize centering, then the driving rotary clamping mechanism 3 and the driven rotary clamping mechanism 4 respectively clamp two shaft end parts of the axle body, at the moment, the lifting driving piece 10 descends, at the moment, the floating platform 8 floats upwards to the original position, and the axle body moves upwards under the floating force, so that final clamping and positioning are realized; when welding, start the rotatory dress mechanism 3 that presss from both sides of initiative, drive axle body whole rotation, in rotatory, corresponding welding machines hand 5 welds corresponding welding position to realize automatic annular full weld. Overall structure is simple reliable, design benefit has realized the accurate location of axle and axle housing, realizes the initial positioning in the axle body height through lift driving piece 10 and lift platform 7, and rethread floating platform 8 accomplishes the final positioning in the axle body height, and mechanism 9 realizes the axle body through dividing about with the location of fore-and-aft direction, has realized the accurate location of each direction, has improved welding quality and welding efficiency.

In this embodiment, the active rotary clamping mechanism 3 includes a first sliding table 31, a first driving motor 32, an active rotary assembly 33, and a first clamping member 34, the first driving motor 32 is installed on the base 2 at the active end, the first sliding table 31 is slidably installed on the base 2 at the active end and connected to the output end of the first driving motor 32, the active rotary assembly 33 is installed in the first sliding table 31, and the first clamping member 34 is installed on the active rotary assembly 33. In this structure, first driving motor 32 drive first slip table 31 moves on base station 2, is applicable to not unidimensional axle, and first holder 34 carries out the centre gripping to the axle, realizes fixing a position, and the rotation of initiative rotating assembly 33 drives first holder 34 and is rotatory together with the axle, realizes automatic annular full weld, and its simple structure is reliable.

In this embodiment, the driving rotating assembly 33 includes a rotating motor 331, a fixing frame 332, a first fixing sleeve 333, a driving rotating shaft 334 and a driving rotating frame 335, the fixing frame 332 is installed in the first sliding table 31, the rotating motor 331 and the first fixing sleeve 333 are both installed on the fixing frame 332, the driving rotating shaft 334 is sleeved in the first fixing sleeve 333 and connected to an output end of the rotating motor 331, the driving rotating frame 335 is installed on the driving rotating shaft 334, and the first clamping member 34 is installed on the driving rotating frame 335. In the structure, the fixing frame 332 provides an installation base for the rotating motor 331 and the first fixing frame 333, the first fixing frame 333 provides an installation base for the driving rotating shaft 334, and the rotating motor 331 drives the driving rotating shaft 334 to rotate, so that the driving rotating frame 335 and the first clamping piece 34 are driven to rotate.

In this embodiment, the first clamping member 34 includes a first mounting seat 341 and a pair of first V-shaped clamping jaws 342, and the pair of first V-shaped clamping jaws 342 are slidably mounted on the first mounting seat 341. In this structure, the first mounting seat 341 provides a mounting base for the pair of first V-shaped clamping jaws 342, and the first V-shaped clamping jaws 342 move in the first mounting seat 341 to be unfolded and folded, thereby realizing the clamping function for the axle.

In this embodiment, the driven rotary clamping mechanism 4 includes a second slide table 41, a second driving motor 42, a driven rotary unit 43, and a second clamping member 44, the second driving motor 42 is mounted on the base 2 at the driven end, the second slide table 41 is slidably mounted on the base 2 at the driven end and connected to the output end of the second driving motor 42, the driven rotary unit 43 is mounted in the second slide table 41, and the second clamping member 44 is mounted on the driven rotary unit 43. In this structure, second driving motor 42 drive second slip table 41 moves on base station 2, is applicable to not unidimensional axle, and second holder 44 carries out the centre gripping to the axle, realizes the location, and driven rotating assembly 43 is driven by the axle and is rotatory, realizes automatic annular full weld, and its simple structure is reliable.

In this embodiment, the driven rotating assembly 43 includes a second fixing sleeve 431, a driven rotating shaft 432 and a driven rotating frame 433, the second fixing sleeve 431 is fixedly installed in the second sliding table 41, the driven rotating shaft 432 is sleeved in the second fixing sleeve 431, the driven rotating frame 433 is installed on the driven rotating shaft 432, and the second clamping member 44 is installed on the driven rotating frame 433. In this structure, the fixed cover 431 of second provides the installation basis for driven rotating shaft 432, and the axle passes through second holder 44 and drives driven rotating frame 433 and driven rotating shaft 432 rotatory, and its simple structure is ingenious.

In this embodiment, the second clamping member 44 includes a second mounting seat 441 and a pair of second V-shaped clamping jaws 442, and the pair of second V-shaped clamping jaws 442 are slidably mounted on the second mounting seat 441. In this structure, the second mounting seat 441 provides a mounting base for the pair of second V-shaped clamping jaws 442, and the second V-shaped clamping jaws 442 move in the second mounting seat 441 to be unfolded and folded, so as to clamp the axle.

In this embodiment, a positioning mechanism 11 for positioning the driven rotating shaft 432 is further installed in the second sliding table 41. This positioning mechanism 11 can fix a position driven rotating shaft 432, guarantees that second V type clamping jaw 442 on driven rotating shaft 432 corresponds with first V type clamping jaw 342 position, stability and reliability when guaranteeing the clamping.

In this embodiment, the positioning mechanism 11 includes an air cylinder 111, a latch 112, and a positioning plate 113, a positioning hole 1131 is formed in the positioning plate 113, the positioning plate 113 is fixedly mounted on the driven rotating shaft 432, the air cylinder 111 is mounted in the second sliding table 41, and the latch 112 is mounted at an output end of the air cylinder 111 and driven by the air cylinder 111 to be inserted into the positioning hole 1131. In this structure, when normal welding, cylinder 111 drives bolt 112 and backs to guarantee normal rotation function, after the welding, with the positioning disk 113 rotation to the position that locating hole 1131 and bolt 112 correspond, cylinder 111 drives bolt 112 and stretches out and fix a position driven spindle 432 in inserting to locating hole 1131, prevents that it from producing the rotation when the clamping, and its simple structure is ingenious.

In this embodiment, the lifting platform 7 includes a lifting plate 71, a guide sleeve 72 and a lifting guide rod 73, the guide sleeve 72 is installed at the top of the fixing platform 6, the lifting guide rod 73 is installed at the bottom of the lifting plate 71, the lifting guide rod 73 is sleeved in the guide sleeve 72, and the lifting plate 71 is connected with the output end of the lifting driving member 10. In this configuration, the lifting drive 10 is provided with an upper motor. The lifting driving piece 10 drives the lifting plate 71 to lift, the lifting guide rod 73 lifts in the guide sleeve 72, and the smoothness and stability of the lifting process are improved through the matching of the lifting guide rod 73 and the guide sleeve 72.

In this embodiment, the floating platform 8 includes a floating plate 81, a limiting post 82 and a spring 83, the limiting post 82 is installed on the lifting plate 71, the spring 83 is sleeved on the limiting post 82 and exceeds the end of the limiting post 82, and the floating plate 81 is installed on the spring 83. In this structure, when the axle body was placed on dividing mechanism 9, received the action of gravity, floated board 81 pushed down through spring 83, when both ends were carried out the clamping, can have an ascending clamping power to the axle during the clamping, this advance spring 83 and resume the power of deformation and can order about the axle upwards to guarantee that the axle upwards floats, required power of making progress when slowing down both ends clamping ensures that the axle is not upwards pulled out by force, and its simple structure is ingenious.

In this embodiment, the lower limit table 84 is installed on the top of the lifting plate 71, the upper limit table 85 is installed on the bottom of the floating plate 81, and when the spring 83 is in a normal state, a gap exists between the upper limit table 85 and the lower limit table 84. In this structure, the pressing down of the floating plate 81 can be restricted by the cooperation of the upper limit table 85 and the lower limit table 84, and the stability thereof is ensured.

In this embodiment, the centering mechanism 9 includes a centering motor 91, a radial positioning group 92, and an axial centering group 93, the centering motor 91 is installed at the bottom of the floating plate 81, the radial positioning group 92 is fixedly installed at the top of the floating plate 81, and the axial centering group 93 is slidably installed at the top of the floating plate 81 and connected to an output end of the centering motor 91. In the structure, the radial positioning group 92 is matched with the periphery of the middle cavity of the axle to realize radial positioning (front and back direction), the centering motor 91 can drive the axial centering group 93 to be matched with the periphery of the middle cavity of the axle to realize positioning and centering in the axial direction (left and right direction), and the structure is simple and ingenious.

In this embodiment, the axial centering group 93 includes a transmission gear 931, a pair of transmission plates 932, a pair of transmission racks 933, and a pair of axial centering stages 934, the transmission gear 931 is installed on the floating plate 81, the pair of transmission plates 932 are slidably installed on the top of the floating plate 81, one of the transmission plates 932 is connected to the output end of the centering motor 91, the pair of transmission racks 933 are respectively installed on the corresponding transmission plates 932 and engaged with the transmission gear 931, and the pair of axial centering stages 934 are respectively installed on the corresponding transmission plates 932. In this structure, divide a transmission plate 932 of motor 91 drive to remove in, this transmission plate 932 drives transmission gear 931 through its transmission rack 933 and rotates, and transmission gear 931 drives another transmission plate 932 through another transmission rack 933 and removes to platform 934 moves to both ends or to centre synchronous motion in realizing dividing a pair of axial, in order to realize the location of axial direction (left right direction) and divide in, its simple structure is ingenious.

In this embodiment, a push plate 9321 is disposed at the bottom of one of the transmission plates 932, and the push plate 9321 is connected to an output end of the centering motor 91. In this structure, motor 91 drive push pedal 9321 removes in dividing, and push pedal 9321 drives driving plate 932 again and removes, and its simple structure is reliable.

In this embodiment, the floating plate 81 is provided with a sliding rail 811, and the pair of transmission plates 932 are slidably mounted on the sliding rail 811. Through the cooperation of slide rail 811, the smoothness and the stability of driving plate 932 in the removal process have been improved.

In this embodiment, the radial positioning set 92 includes a plurality of radial positioning stages 921, and each radial positioning stage 921 is mounted on the floating plate 81. Each radial positioning platform 921 cooperates with the middle cavity periphery of the axle to realize radial direction positioning (front-back direction), and the structure is simple and reliable.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The technical solution of the present invention can be used by anyone skilled in the art to make many possible variations and modifications, or to modify equivalent embodiments, without departing from the scope of the technical solution of the present invention, using the technical content disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.

Claims (17)

1. The utility model provides a be used for axle body welded weldment work station which characterized in that: comprises a base (1), a pair of base stations (2), a pair of welding manipulators (5), a fixed platform (6), a lifting platform (7), a floating platform (8), a centering mechanism (9) and a lifting driving piece (10), wherein the base stations (2) are fixedly arranged at two ends of the base (1), one base station (2) is provided with a driving rotary clamping mechanism (3) which is used for clamping one shaft end part of an axle body and driving the axle body to rotate in a sliding manner, the other base station (2) is provided with a driven rotary clamping mechanism (4) which is used for clamping the other shaft end part of the axle body and rotates along with the axle body in a sliding manner, the pair of welding manipulators (5) are arranged on the base (1) and correspond to required welding positions of the axle body, the fixed platform (6) is arranged on the base (1) and positioned between the pair of base stations (2), and the lifting driving piece (10) is arranged in the fixed platform (6), lifting platform (7) set up at fixed platform (6) top and are connected with the output of lift driving piece (10), floating platform (8) are installed at lifting platform (7) top, divide mechanism (9) to install at floating platform (8) top.

2. The welding station for axle body welding of claim 1, wherein: rotatory clamping mechanism (3) of initiative includes first slip table (31), first driving motor (32), initiative rotating assembly (33) and first holder (34), install on base station (2) of initiative end first driving motor (32), first slip table (31) slide on dress base station (2) of this end and be connected with the output of first driving motor (32), install in first slip table (31) initiative rotating assembly (33), install on initiative rotating assembly (33) first holder (34).

3. The welding station for axle body welding of claim 2, wherein: initiative rotating assembly (33) includes rotating electrical machines (331), mount (332), first fixed cover (333), initiative pivot (334) and initiative revolving rack (335), install in first slip table (31) mount (332), rotating electrical machines (331) and first fixed cover (333) are all installed on mount (332), initiative pivot (334) suit is connected in first fixed cover (333) and with the output of rotating electrical machines (331), install on initiative pivot (334) initiative revolving rack (335), install on initiative revolving rack (335) first holder (34).

4. The welding station for axle body welding of claim 3, wherein: the first clamping piece (34) comprises a first mounting seat (341) and a pair of first V-shaped clamping jaws (342), and the pair of first V-shaped clamping jaws (342) are slidably mounted on the first mounting seat (341).

5. The welding station for axle body welding of claim 4, wherein: driven rotatory clamp dress mechanism (4) includes second slip table (41), second driving motor (42), driven rotating assembly (43) and second holder (44), second driving motor (42) are installed on base station (2) of driven end, second slip table (41) slide and adorn on base station (2) of this end and be connected with the output of second driving motor (42), install in second slip table (41) driven rotating assembly (43), install on driven rotating assembly (43) second holder (44).

6. The welding station for axle body welding of claim 5, wherein: driven rotating assembly (43) include the fixed cover of second (431), driven spindle (432) and driven revolving rack (433), the fixed cover of second (431) is adorned admittedly in second slip table (41), driven spindle (432) suit is in the fixed cover of second (431), install on driven spindle (432) from driven revolving rack (433), install on driven revolving rack (433) second holder (44).

7. The welding station for axle body welding of claim 6, wherein: the second clamping piece (44) comprises a second mounting seat (441) and a pair of second V-shaped clamping jaws (442), and the pair of second V-shaped clamping jaws (442) are slidably mounted on the second mounting seat (441).

8. The welding station for axle body welding of claim 7, wherein: and a positioning mechanism (11) for positioning the driven rotating shaft (432) is further arranged in the second sliding table (41).

9. The welding station for axle body welding of claim 8, wherein: positioning mechanism (11) include cylinder (111), bolt (112) and positioning disk (113), positioning hole (1131) have been seted up on positioning disk (113), positioning disk (113) are adorned admittedly on driven spindle (432), install in second slip table (41) cylinder (111), bolt (112) are installed at the output of cylinder (111) and are inserted to positioning hole (1131) under cylinder (111) drive.

10. The welding station for axle body welding of any one of claims 1 to 9, wherein: lifting platform (7) include lifter plate (71), uide bushing (72) and lift guide bar (73), install at fixed platform (6) top uide bushing (72), install in lifter plate (71) bottom lift guide bar (73), lift guide bar (73) suit is in uide bushing (72), lifter plate (71) are connected with the output of lift driving piece (10).

11. The welding station for axle body welding of claim 10, wherein: the floating platform (8) comprises a floating plate (81), a limiting column (82) and a spring (83), the limiting column (82) is installed on the lifting plate (71), the spring (83) is sleeved on the limiting column (82) and exceeds the end part of the limiting column (82), and the floating plate (81) is installed on the spring (83).

12. The welding station for axle body welding of claim 11, wherein: lower limiting table (84) is installed at the top of the lifting plate (71), upper limiting table (85) is installed at the bottom of the floating plate (81), and when the spring (83) is in a normal state, a gap exists between the upper limiting table (85) and the lower limiting table (84).

13. The welding station for axle body welding of claim 12, wherein: the centering mechanism (9) comprises a centering motor (91), a radial positioning group (92) and an axial centering group (93), the centering motor (91) is installed at the bottom of the floating plate (81), the radial positioning group (92) is fixedly installed at the top of the floating plate (81), and the axial centering group (93) is slidably installed at the top of the floating plate (81) and is connected with the output end of the centering motor (91).

14. The welding station for axle body welding of claim 13, wherein: the axial centering group (93) comprises a transmission gear (931), a pair of transmission plates (932), a pair of transmission racks (933) and a pair of axial centering tables (934), the transmission gear (931) is installed on the floating plate (81), the pair of transmission plates (932) are slidably installed on the top of the floating plate (81), one of the transmission plates (932) is connected with the output end of the centering motor (91), the pair of transmission racks (933) are respectively installed on the corresponding transmission plates (932) and meshed with the transmission gear (931), and the pair of axial centering tables (934) are respectively installed on the corresponding transmission plates (932).

15. The welding station for axle body welding of claim 14, wherein: a push plate (9321) is arranged at the bottom of one of the transmission plates (932), and the push plate (9321) is connected with the output end of the center-dividing motor (91).

16. The welding station for axle body welding of claim 15, wherein: the floating plate (81) is provided with a slide rail (811), and the pair of transmission plates (932) are arranged on the slide rail (811) in a sliding way.

17. The welding station for axle body welding of claim 16, wherein: the radial positioning group (92) comprises a plurality of radial positioning platforms (921), and each radial positioning platform (921) is installed on the floating plate (81).

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