CN217167207U

CN217167207U - High-precision blade positioning welding device

Info

Publication number: CN217167207U
Application number: CN202220269666.7U
Authority: CN
Inventors: 熊胜华; 汪守元
Original assignee: Wuhan Shunfeng Cooling And Heating Equipment Co ltd
Current assignee: Wuhan Shunfeng Cooling And Heating Equipment Co ltd
Priority date: 2022-02-09
Filing date: 2022-02-09
Publication date: 2022-08-12
Anticipated expiration: 2032-02-09

Abstract

The application discloses high accuracy blade fixed-position welding device, which comprises a base, including positioning mechanism and fixing base on the base, be provided with the fixed column on the fixing base, the one end that the fixing base was kept away from to the fixed column is seted up flutedly, the fixed column has been seted up a plurality of through-holes and has been encircleed the distribution along the center of fixed column on the lateral wall of recess, it is provided with the slide bar to slide in the through-hole, the one end fixedly connected with that the recess was kept away from to the slide bar supports the tight board, be provided with the control mechanism who is used for adjusting the sliding distance of slide bar in the recess, be provided with the locking mechanism who is used for with the slide bar locking at relevant position on the fixed column. This application has and to adjust the sliding distance of slide bar in can being according to not unidimensional fan, realizes adjusting the distance of the slip direction of supporting tight board along the slide bar for support tight board and support tightly not unidimensional fan pivot, be convenient for to not unidimensional fan pivot welding blade, help improving the effect of the welding installation precision between duckweed and the fan pivot.

Description

High-precision blade positioning welding device

Technical Field

The application relates to a fan blade welding frock field especially relates to a high accuracy blade fixed-position welding device.

Background

The impeller of fan is the most important part in the fan, so to the welding of blade is especially important, and whether blade welded angle and position reach the performance that the requirement all directly influenced the fan, because the fan model is numerous, the specification of impeller is also more relatively, and the blade form change is also very big, so need have in the welding process with the blade and make the blade dock and weld comparatively accurately.

When welding the blade, generally fix a position the angle of blade through positioning mechanism, rotate the fan and place on the fixing base, rethread positioning mechanism carries fixing base department with the blade and makes blade and fan pivot case conflict, welds the blade in the fan pivot through welder.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: fan pivot of unidimensional not need the cover in the epaxial not co-altitude department of commentaries on classics, adjusts the ascending position of vertical side of blade simultaneously through positioning mechanism for the position of blade is aimed at the position of fan pivot, and the change to fan pivot size at every turn is difficult to carry out complete accurate regulation with the position of blade, thereby makes the blade also fan pivot welding time can have certain error, and then the installation that can lead to whole fan receives certain influence.

SUMMERY OF THE UTILITY MODEL

In order to improve at every turn and carry out the problem that there may be certain error when also the welding of fan pivot of blade in the position of hardly carrying out complete accurate regulation with the blade to the change of fan pivot size, this application provides a high accuracy blade positioning welding device.

The application provides a high accuracy blade fixed-position welding device adopts following technical scheme:

the utility model provides a high accuracy blade fixed-position welding device, includes the base, including positioning mechanism and fixing base on the base, be provided with the fixed column on the fixing base, the fixed column is kept away from the one end of fixing base is seted up flutedly, the fixed column in set up a plurality of through-hole and a plurality of on the lateral wall of recess the through-hole is followed the center of fixed column is encircleed and is distributed, it is provided with the slide bar to slide in the through-hole, the slide bar is kept away from the one end fixedly connected with of recess supports tight board, be provided with in the recess and be used for adjusting the control mechanism of the sliding distance of slide bar, be provided with on the fixed column and be used for with the locking mechanism of slide bar locking in relevant position.

By adopting the technical scheme, when fan rotating shafts with different sizes need to be replaced, the sliding rod is unlocked through the locking mechanism, so that the abutting plate does not abut against the fan rotating shaft arranged on the fixed column any more, the fan rotating shaft arranged on the fixed column is taken out and other fan rotating shafts with different sizes are sleeved on the abutting plate, meanwhile, the distance of the sliding rod is adjusted through the control mechanism, so that the abutting plate abuts against the inner side wall of the fan rotating shaft, the sliding rod is locked through the locking mechanism, the abutting plate is fixedly abutted against the inner side wall of the fan rotating shaft, and the fan rotating shaft is fixed on the fixed column; the sliding distance of the sliding rod is adjusted according to fans of different sizes, the distance of the abutting plate in the sliding direction of the sliding rod is adjusted, the abutting plate can abut against fan rotating shafts of different sizes, welding of blades of the fan rotating shafts of different sizes is facilitated, the positions of the fan rotating shafts are enabled not to be changed, the height of the adjusting blades is avoided as far as possible, and therefore welding and installation accuracy between the duckweed and the fan rotating shafts is improved.

Optionally, control mechanism connects including rotating dwang on the recess diapire, the week side wall of dwang is gone up and is surrounded and be provided with a plurality of regulating blocks, the regulating block sets up to "blade" form, and is a plurality of the slide bar is close to the one end of recess articulates respectively has the sliding block, the sliding block slides and sets up in a plurality of the avris of regulating block, it is a plurality of the regulating block is with a plurality of the slide bar one-to-one.

Through adopting above-mentioned technical scheme, rotate the dwang and make the regulating block rotate along with the rotation of dwang for the sliding block carries out the relative slip along the orbit of regulating block avris, thereby makes the regulating block promote the slide bar along the length direction reciprocating sliding of through-hole, with the realization to the regulation of slide bar slip distance, and then the realization supports tight board and supports tightly not unidimensional fan pivot.

Optionally, the locking mechanism includes up end gear and lower end gear, end gear coaxial coupling is in down on the fixed column, the coaxial rigid coupling of up end gear in on the dwang, up end gear with lower end gear meshing adaptation, be provided with on the dwang and be used for the drive up end gear follows the drive assembly that the length direction of dwang goes up and down.

Through adopting above-mentioned technical scheme, carry out the locking with the dwang as required, up remove and make up face gear and lower terminal surface gear meshing be connected along vertical direction through drive assembly drive up face gear for up face gear is fixed by lower terminal surface gear, and the dwang is also being fixed by lower terminal surface gear in the linkage, and then the realization is to the locking of dwang.

It is optional, drive assembly includes elastic component and slide bar, the dwang is kept away from the spout has been seted up to the one end of recess diapire, the one end sliding connection of slide bar in the spout, the other end stretch out the spout slides simultaneously and passes terminal surface gear and fixedly connected with handle down, the coaxial rigid coupling of up end gear in on the slide bar, the one end of elastic component is connected the up end gear is close to one side, the other end of dwang are connected the dwang is close to one side of up end gear, the elastic component is in compression state, be provided with in the spout and be used for preventing the slide bar is in pivoted locating part in the spout.

By adopting the technical scheme, when the rotating rod is locked, the sliding rod is driven to move upwards along the vertical direction through the elastic deformation force of the elastic piece, so that the upper end face gear moves upwards along with the sliding rod, and the upper end face gear is meshed with the lower end face gear to realize locking of the rotating rod; through manual drive handle down pushing down the slide bar, the elastic component is compressed and is made up end face gear and lower terminal surface gear no longer mesh and connect, carries out the unblock to the dwang, carries on spacingly through the locating part to the dwang simultaneously, thereby the twist grip drives the slide bar and rotates the dwang rotation, the simple operation that links.

Optionally, the limiting member is a clamping block, a limiting groove is formed in the side wall of the sliding groove along the sliding direction of the sliding groove, one end of the clamping block is slidably connected to the limiting groove, and the other end of the clamping block is fixedly connected to the sliding rod.

Through adopting above-mentioned technical scheme, when the sliding block slided in the spout, the stopper slided in the spacing groove and carries on spacingly to the slide bar for the slide bar can not rotate in the spout, and the drive slide bar rotates and can link the dwang and rotate.

Optionally, a plurality of draw-in grooves and a plurality of have been seted up on the fixed column keeps away from the terminal surface of base the draw-in groove is followed the center of fixed column is around distributing, the draw-in groove is close to the lateral wall at fixed column center with the recess is and runs through the setting, the joint has the chucking piece in the draw-in groove, fixedly connected with branch on the chucking piece, it is a plurality of branch is kept away from a plurality of the one end of chucking piece is passed the draw-in groove and jointly with lower terminal surface gear fixed connection, be provided with on the fixed column be used for with the chucking piece locking is in locking the locking piece in the draw-in groove.

By adopting the technical scheme, the clamping block is clamped in the clamping groove, and the clamping block is fixed in the clamping groove through the locking piece, so that the support rod and the lower end face gear fixedly connected with the support rod are fixed on the fixing column, and the lower end face gear is arranged in the center of the groove, and the upper end face gear can be just meshed and connected with the lower end face gear when ascending; the clamping block is unlocked through the locking piece, the lower end face gear can be taken down, and the clamping block is convenient to detach and replace.

Optionally, the locking member is a locking bolt, and the locking bolt is threaded through the clamping block and is in threaded connection with the clamping groove.

Through adopting above-mentioned technical scheme, wear to establish the chucking piece and with draw-in groove threaded connection through the locking bolt screw thread for chucking piece fixed connection is in the draw-in groove, and then realizes taking out locking bolt when rotating locking bolt, realizes the unblock to the chucking piece, and it is convenient to ann tear open.

Optionally, an elastic abutting layer is laid on one side of the abutting plate, which is far away from the sliding rod.

Through adopting above-mentioned technical scheme for support tight board and support tightly more to the inside wall of fan pivot, help strengthening and support tight degree of supporting of the inside wall between tight board and the fan pivot.

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

1. through setting up fixed column, recess, through-hole, slide bar, support tight board. The control mechanism and the locking mechanism can adjust the sliding distance of the sliding rod in the fans with different sizes, so that the distance of the abutting plate along the sliding direction of the sliding rod is adjusted, the abutting plate can abut against the fan rotating shafts with different sizes, blades can be welded on the fan rotating shafts conveniently, the positions of the fan rotating shafts are not changed, the height of the blades is prevented from being adjusted as far as possible, and the welding installation precision between the duckweeds and the fan rotating shafts is improved;

2. by arranging the rotating rod and the adjusting block, the rotating rod is rotated to enable the adjusting block to rotate along with the rotation of the rotating rod, so that the sliding block relatively slides along the track of the side of the adjusting block, the adjusting block pushes the sliding rod to slide in a reciprocating manner along the length direction of the through hole, the sliding distance of the sliding rod is adjusted, and the abutting plate abuts against the rotating shafts of the fans with different sizes;

3. through setting up terminal gear, terminal gear and drive assembly down, drive assembly drive up terminal gear up moves and makes terminal gear and lower terminal gear meshing be connected along vertical direction for terminal gear is fixed by terminal gear down, links the dwang and is also fixed by terminal gear down, and then realizes the locking to the dwang.

Drawings

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

Fig. 2 is a partial structural schematic diagram mainly hiding a base and a positioning mechanism in the embodiment of the application.

Fig. 3 is a schematic partial sectional structure view of the embodiment of the present application, in which the base, the positioning mechanism, the fixing seat, and the three-jaw chuck are mainly hidden.

Fig. 4 is a partial structural schematic diagram mainly used for showing an adjusting mechanism and a locking mechanism in the embodiment of the application.

Reference numerals: 1. a base; 2. a fixed seat; 3. a three-jaw chuck; 4. fixing a column; 5. a groove; 6. a through hole; 7. a slide bar; 8. a propping plate; 9. rotating the rod; 10. an adjusting block; 11. an upper face gear; 12. a lower face gear; 13. an elastic member; 14. a slide bar; 15. a chute; 16. a handle; 17. a clamping block; 18. a limiting groove; 19. a card slot; 20. a clamping block; 21. a strut; 22. a locking bolt; 23. an elastic support layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses high accuracy blade fixed-position welding device. Referring to fig. 1, high accuracy blade fixed-position welding device includes base 1, including positioning mechanism and fixing base 2 on the base 1, in this application embodiment, it is connected with three-jaw chuck 3 to rotate on the fixing base 2, 3 fixedly connected with fixed column 4 of three-jaw chuck, it drives fixed column 4 to rotate through 3 rotations of drive three-jaw chuck, the welding of fan pivot and blade of being convenient for, the welding has the limiting plate on the lateral wall of fixed column 4, the limiting plate encircles and sets up on fixed column 4, the fan pivot cover of being convenient for is located on fixed column 4.

Referring to fig. 1 and 3, a groove 5 is formed at one end of a fixed column 4 far from a fixed three-jaw chuck 3, a plurality of through holes 6 are formed in the side wall of the groove 5 of the fixed column 4, and the plurality of through holes 6 are distributed around the center of the fixed column 4, in the embodiment of the application, four through holes 6 are arranged, the four through holes 6 are distributed at equal intervals along the center of the fixed column 4, sliding rods 7 are arranged in the plurality of through holes 6 in a sliding mode, a resisting plate 8 is welded at one end, far from the groove 5, of each sliding rod 7, a control mechanism for adjusting the sliding distance of each sliding rod 7 is arranged in the groove 5, a locking mechanism for locking the corresponding position of each sliding rod 7 is arranged on the fixed column 4, the resisting plate 8 is arranged in an arc shape, an elastic resisting layer 23 is laid on one side, far from the sliding rods 7, of the resisting plate 8, the elastic resisting layer 23 is arranged as an elastic rubber layer and is fixed on the resisting plate 8 through strong glue, the supporting degree of the supporting plate 8 and the rotating shaft of the fan can be enhanced.

In the embodiment of the present application, referring to fig. 3 and 4, the control mechanism includes a rotating rod 9 rotatably connected to the bottom wall of the groove 5, the center of the rotating rod 9 and the center of the fixing rod are coaxially arranged, four adjusting blocks 10 are annularly arranged on the peripheral side wall of the rotating rod 9, the adjusting blocks 10 are welded on the rotating rod 9, the adjusting blocks 10 are arranged in a blade shape, a sliding groove is formed in the side of each adjusting block 10, sliding blocks are respectively hinged to one ends of the four sliding rods 7 close to the groove 5, the sliding blocks are slidably arranged in the sliding grooves of the adjusting blocks 10, the adjusting blocks 10 correspond to the sliding rods 7 one by one, and the sliding blocks slide relatively along the sliding direction of the sliding groove, so that the sliding rods 7 move along the length direction of the through holes 6;

make regulating block 10 along with rotating through rotating dwang 9, thereby make the sliding block carry out the relative slip in the sliding tray, and then make sliding block drive slide bar 7 being promoted by regulating block 10 and reciprocating sliding in through-hole 6, and then realize the regulation of the sliding distance of slide bar 7 in through-hole 6, according to the fan pivot of not unidimensional, make the sliding block slide and then promote slide bar 7 to slide corresponding distance through rotating regulating block 10 and make and support tight board 8 and support tightly on the inside wall of fan pivot, make the fan pivot fix on fixed column 4, need not to adjust the position of the vertical direction of blade, improve the epaxial accuracy of blade welding fan as far as possible.

In order to be able to lock the slide 7, in a possible embodiment, with reference to fig. 3 and 4, the locking mechanism comprises an upper face gear 11 and a lower face gear 12, the lower face gear 12 being coaxially connected to the fixed column 4, in order to facilitate the mounting and dismounting of the lower face gear 12, in the embodiment of the present application, a plurality of slots 19 are disposed on the end surface of the fixing post 4 away from the base 1, and the slots 19 are distributed around the center of the fixing post 4, in the embodiment of the application, four clamping grooves 19 are arranged, the side wall of each clamping groove 19, which is close to the center of the fixed column 4, is communicated with the groove 5, a clamping block 20 is clamped in each clamping groove 19, a support rod 21 is welded on each clamping block 20, one ends of the four support rods 21, which are far away from the clamping blocks 20, penetrate through the clamping grooves 19 and are welded with the peripheral side wall of the lower end face gear 12 together, and a locking piece for locking the clamping blocks 20 in the clamping grooves 19 is arranged on the fixed column 4; the locking piece is provided with a locking bolt 22, the locking bolt 22 is threaded through the clamping block 20 and is in threaded connection with the clamping groove 19, and the locking or unlocking of the clamping block 20 is facilitated through the locking bolt 22, so that the lower end face gear 12 can be installed and disassembled conveniently;

the upper end face gear 11 is coaxially and fixedly connected to the rotating rod 9, the upper end face gear 11 is meshed and matched with the lower end face gear 12, and the rotating rod 9 is provided with a driving assembly for driving the upper end face gear 11 to lift along the length direction of the rotating rod 9; the driving component comprises an elastic part 13 and a sliding rod 14, one end of the rotating rod 9 far away from the bottom wall of the groove 5 is provided with a sliding groove 15, one end of the sliding rod 14 is connected in the sliding groove 15 in a sliding way, the other end of the sliding rod extends out of the sliding groove 15 and simultaneously passes through the lower end face gear 12 in a sliding way, a handle 16 is welded on the sliding rod, the upper end face gear 11 is coaxially welded on the sliding rod 14, a limiting part for preventing the sliding rod 14 from rotating in the sliding groove 15 is arranged in the sliding groove 15, the limiting part is provided with two clamping blocks 17, the side wall of the sliding groove 15 along the sliding direction is provided with a limiting groove 18, in the embodiment of the present application, the two limiting grooves 18 are provided, and the two limiting grooves 18 are symmetrically arranged with the center of the sliding groove 15 as an axis, one end of each of the two locking blocks 17 is slidably connected in the two limiting grooves 18, and the other end is welded to the sliding rod 14, so as to limit the sliding rod 14, and the sliding rod 14 cannot rotate in the sliding groove 15;

in this application embodiment, refer to fig. 3 and 4, elastic component 13 sets up to the spring, elastic component 13 is provided with two and two elastic components 13 and is the symmetry setting, elastic component 13's one end welds the one side that last terminal gear 11 is close to dwang 9, the other end welds the one side that dwang 9 is close to last terminal gear 11, elastic component 13 is in the compression state, inlay in the elastic component 13 and be equipped with the telescopic link, the telescopic link includes slide bar and the loop bar of slip cap on the slide bar, the one end that the loop bar was kept away from to the slide bar welds with last terminal gear 11, the one end welding that the loop bar was kept away from to the slide bar is on dwang 9, have certain limiting displacement to elastic component 13's flexible, avoid elastic component 13 to appear the phenomenon of excessive deformation as far as possible, and then help to increase the life of elastic component 13.

In another feasible implementation, locking mechanism includes the socket on welded fastening post 4, sliding connection has bolt and bolt to rotate along its center pin on the socket, a plurality of joint grooves have been seted up on the slip direction along the bolt on the socket, the inserting groove has been seted up on dwang 9, the one end and the inserting groove joint adaptation of socket are kept away from to the bolt, when the bolt joint advances the inserting groove, make the bolt can not slide through rotating the bolt, thereby fix the bolt in the inserting groove, in order to realize the locking to dwang 9

In the embodiment of the application, a first implementation manner is selected, when the rotating shaft of the fan is abutted, the elastic part 13 enables the sliding rod 14 to slide along the sliding direction of the sliding chute 15 through elastic deformation of the elastic part, and the sliding rod is linked with the upper end face gear 11 to move, so that the upper end face gear 11 is meshed with the lower end face gear 12, the sliding rod 14 is locked, and the rotating rod 9 is locked; when the dwang 9 needs to be rotated, make the slide bar 14 move toward the direction of the 15 diapalls of spout through pressing down handle 16, elastic component 13 is compressed, and up end gear 11 moves down for up end gear 11 and lower end gear 12 do not mesh and connect, thereby unblock slide bar 14, in order to realize the unblock to dwang 9, make slide bar 14 rotate the rotation of linkage dwang 9 through turning handle 16, realize the regulation to slide bar 7 sliding distance.

The implementation principle of the high-precision blade positioning and welding device in the embodiment of the application is as follows: when the fan rotating shafts with different sizes need to be replaced, the sliding rod 14 is pressed downwards, so that the upper end face gear 11 is not meshed with the lower end face gear 12 any more, the rotating rod 9 is unlocked, the sliding rod 7 is unlocked, the abutting plate 8 is not abutted against the fan rotating shaft arranged on the fixed column 4, the fan rotating shaft arranged on the fixed column 4 is taken out and sleeved with other fan rotating shafts with different sizes, meanwhile, the rotating handle 16 drives the sliding rod 14 to rotate, so that the rotating rod 9 is driven to rotate, the sliding block slides relatively along the sliding groove of the adjusting block 10, the sliding distance of the sliding rod 7 in the through hole 6 is adjusted, the abutting plate 8 abuts against the inner side wall of the fan rotating shaft, the rotating rod 9 and the sliding rod 7 are locked through the meshing of the upper end face gear 11 and the lower end face gear 12, so that the abutting plate 8 is fixedly abutted against the inner side wall of the fan rotating shaft, thereby fixing the rotating shaft of the fan on the fixed column 4; the sliding distance of the sliding rod 7 is adjusted according to fans of different sizes, the distance of the abutting plate 8 in the sliding direction of the sliding rod 7 is adjusted, the abutting plate 8 can abut against fan rotating shafts of different sizes, blades of the fan rotating shafts of different sizes can be welded conveniently, the positions of the fan rotating shafts are enabled not to be changed, the height of the blades is prevented from being adjusted as far as possible, and the welding installation accuracy between the duckweeds and the fan rotating shafts is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a high accuracy blade fixed-position welding device, includes base (1), including positioning mechanism and fixing base (2), its characterized in that on base (1): the fixing device is characterized in that a fixing column (4) is arranged on the fixing seat (2), a groove (5) is formed in one end, far away from the fixing seat (2), of the fixing column (4), a plurality of through holes (6) are formed in the side wall of the groove (5) of the fixing column (4), the through holes (6) are distributed in a surrounding mode along the center of the fixing column (4), a sliding rod (7) is arranged in the through holes (6) in a sliding mode, one end, far away from the groove (5), of the sliding rod (7) is fixedly connected with a supporting plate (8), a control mechanism used for adjusting the sliding distance of the sliding rod (7) is arranged in the groove (5), and a locking mechanism used for locking the sliding rod (7) at the corresponding position is arranged on the fixing column (4).

2. The high-precision blade positioning welding device according to claim 1, characterized in that: control mechanism connects including rotating dwang (9) on recess (5) diapire, it is provided with a plurality of regulating blocks (10) to encircle on the week lateral wall of dwang (9), regulating block (10) set up to "blade" form, and are a plurality of slide bar (7) are close to the one end of recess (5) articulates respectively has the sliding block, the sliding block slides and sets up in a plurality of the avris of regulating block (10), and is a plurality of regulating block (10) and a plurality of slide bar (7) one-to-one.

3. The high-precision blade positioning welding device according to claim 2, characterized in that: locking mechanism includes up end gear (11) and lower terminal surface gear (12), terminal surface gear (12) coaxial coupling is in down on fixed column (4), the coaxial rigid coupling of up end gear (11) in on dwang (9), up end gear (11) with terminal surface gear (12) meshing adaptation down, be provided with on dwang (9) and be used for the drive up end gear (11) are followed the drive assembly that the length direction of dwang (9) goes up and down.

4. A high-precision blade positioning and welding device according to claim 3, wherein: the driving component comprises an elastic piece (13) and a sliding rod (14), one end of the rotating rod (9) far away from the bottom wall of the groove (5) is provided with a sliding groove (15), one end of the sliding rod (14) is connected in the sliding chute (15) in a sliding way, the other end of the sliding rod extends out of the sliding chute (15) and penetrates through the lower end face gear (12) in a sliding way and is fixedly connected with a handle (16), the upper end face gear (11) is coaxially and fixedly connected to the sliding rod (14), one end of the elastic piece (13) is connected with one side of the upper end face gear (11) close to the rotating rod (9), the other end of the elastic piece is connected with one side of the rotating rod (9) close to the upper end face gear (11), the elastic piece (13) is in a compressed state, and a limiting piece for preventing the sliding rod (14) from rotating in the sliding groove (15) is arranged in the sliding groove (15).

5. The high precision blade tack welding apparatus of claim 4, wherein: the limiting piece is arranged as a clamping block (17), a limiting groove (18) is formed in the side wall of the sliding groove (15) in the sliding direction, one end of the clamping block (17) is connected in the limiting groove (18) in a sliding mode, and the other end of the clamping block is fixedly connected with the sliding rod (14).

6. A high-precision blade positioning and welding device according to claim 3, wherein: the fixing column (4) is kept away from and is seted up a plurality of draw-in grooves (19) and a plurality of on the terminal surface of base (1) draw-in groove (19) are followed the center of fixing column (4) is and encircles the distribution, draw-in groove (19) are close to the lateral wall at fixing column (4) center with recess (5) are and run through the setting, the joint has chucking piece (20) in draw-in groove (19), fixedly connected with branch (21) on chucking piece (20), it is a plurality of branch (21) are kept away from a plurality of the one end of chucking piece (20) is passed draw-in groove (19) and common with terminal surface gear (12) fixed connection down, be provided with on fixing column (4) and be used for with chucking piece (20) locking in draw-in groove (19).

7. The high precision blade tack welding apparatus of claim 6, wherein: the locking piece is set to be a locking bolt (22), and the locking bolt (22) penetrates through the clamping block (20) in a threaded mode and is in threaded connection with the clamping groove (19).

8. The high-precision blade positioning welding device according to claim 1, characterized in that: an elastic abutting layer (23) is laid on one side, away from the sliding rod (7), of the abutting plate (8).