CN214637714U - Painting device with positioning mechanism - Google Patents

Abstract

The utility model relates to a painting device with positioning mechanism relates to the field of computer component processing, and it includes the organism, the organism is connected with the board of placing that is used for placing the computer work piece, the organism is connected with the paint capsules that deposits the paint vehicle, the organism is connected with the silica gel printer head, it is provided with the die print on the board to place, place and offer the mouth of placing that is used for placing the computer work piece on the board, it is connected with the regulation and places board and paint vehicle box position and make die print and place the position control mechanism of mouthful in same straight line with placing to place the board. The application has the effect of facilitating the alignment of the silica gel printing head and the computer workpiece.

Description

Painting device with positioning mechanism

Technical Field

The application relates to the field of computer element processing, in particular to a painting device with a positioning mechanism.

Background

Painting is the process of applying paint to the surface of an object to be protected or decorated and forming a firmly attached continuous film with the object to be painted. When a computer component is machined, the computer workpiece is painted, so that the possibility of oxidation of the computer workpiece can be reduced, and the service life of the computer workpiece is prolonged.

The existing painting method mostly adopts manual painting to computer workpieces, and manually presses the silica gel printing head.

With respect to the related art in the above, the inventors found that: the manual pressing of the silica gel printing head is easy to cause the situation that the alignment cannot be realized during painting.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the alignment of the silica gel printing head and the computer workpiece, the application provides a painting device with a positioning mechanism.

The application provides a painting device with positioning mechanism adopts following technical scheme:

the utility model provides a painting device with positioning mechanism, includes the organism, the organism is connected with the board of placing that is used for placing the computer work piece, the organism is connected with the paint box of depositing the paint vehicle, the organism is connected with the silica gel printer head, it is provided with the die print on the board to place, place and offer the mouth of placing that is used for placing the computer work piece on the board, it is connected with the regulation and places the board and make die print and the position adjustment mechanism of the mouth of placing in same straight line with the paint box position to place the board.

Through adopting above-mentioned technical scheme, place the work piece in placing the board, adjust the position of placing mouth and stamp through position control mechanism for the stamp is located same straight line with placing the mouth, is convenient for paint the paint vehicle on the stamp on the work piece when using silica gel printer head.

Optionally, the bottom of the placing plate is connected with a fixed plate, the bottom of the fixed plate is connected with a placing block, and the position adjusting mechanism comprises a coarse adjusting assembly for driving the placing block to move in the width direction of the paint box so as to perform coarse position adjustment on the placing block, and a fine adjusting assembly for driving the fixed plate to move in the width direction of the paint box so as to perform fine position adjustment on the placing plate.

By adopting the technical scheme, the coarse adjustment component performs coarse position adjustment on the placing block, and the placing plate is connected with the fixed plate which is connected with the placing block, so that the coarse adjustment component performs coarse position adjustment on the placing plate and accelerates the adjustment speed; the fine adjustment component finely adjusts the position of the placing plate, so that the position of the placing plate is adjusted.

Optionally, the coarse adjustment assembly is fixedly connected to a coarse adjustment block of the machine body and a coarse adjustment member in threaded connection with the coarse adjustment block; the placing block is connected with the coarse adjusting block in a sliding manner; the coarse adjustment component penetrates through the coarse adjustment block and comprises a coarse adjustment screw rod and a coarse adjustment rotating rod coaxially connected with the coarse adjustment screw rod, the coarse adjustment screw rod is in threaded connection with the coarse adjustment block, and the coarse adjustment rotating rod is rotatably connected with the placement block.

By adopting the technical scheme, the rough adjusting rotating rod is rotated, the rough adjusting block is fixedly connected to the machine body, the rough adjusting rotating rod is coaxially connected with the rough adjusting screw rod, the rough adjusting rotating rod drives the rough adjusting screw rod to rotate, and the rough adjusting screw rod is rotatably connected with the placing block and drives the placing block to move; meanwhile, the placing block is connected with the coarse adjusting block in a sliding mode, and the placing block cannot rotate but moves along with the coarse adjusting screw rod, so that the position coarse adjustment of the placing block is realized.

Optionally, a coarse adjustment sliding groove is formed in one side, facing the coarse adjustment block, of the placement block, and the coarse adjustment block is connected to the coarse adjustment sliding groove in a sliding manner; the coarse adjustment block is fixedly connected with a coarse adjustment limiting block, the coarse adjustment sliding groove is provided with a vertically arranged coarse adjustment limiting groove, and the coarse adjustment limiting block is slidably connected with the coarse adjustment limiting groove.

By adopting the technical scheme, the coarse adjustment block is connected with the coarse adjustment sliding groove in a sliding manner, the coarse adjustment block is connected with the placement block in a sliding manner, and the coarse adjustment limiting block and the coarse adjustment limiting groove are arranged, so that the possibility that the coarse adjustment block is separated from the coarse adjustment sliding groove is reduced.

Optionally, the fine adjustment assembly includes a fine adjustment block fixedly connected to the bottom of the fixing plate, and a fine adjustment part in threaded connection with the fine adjustment block; the fine adjustment piece wears to establish the fine adjustment piece, the fine adjustment piece include the fine adjustment screw rod, with fine adjustment screw rod coaxial coupling's fine adjustment dwang, the fine adjustment screw rod is threaded connection with the fine adjustment piece, the fine adjustment dwang is to rotate with placing the piece and is connected, it is sliding connection with the fine adjustment piece to place the piece, the pitch of fine adjustment screw rod is less than the pitch of coarse adjusting screw rod.

Through adopting above-mentioned technical scheme, rotate the fine setting dwang, because fine setting piece fixed connection in the bottom of fixed plate, fine setting dwang and fine setting screw rod coaxial coupling, the fine setting dwang drives the fine setting screw rod and takes place to rotate, and the fine setting screw rod drives the fine setting piece and removes, is sliding connection owing to place the piece and the fine setting piece, and the fine setting piece removes along paint vehicle box width direction, and then drives the fixed plate and removes along paint vehicle box width direction, realizes the position fine setting to placing the board.

Optionally, the upper surface of the placing block is provided with a fine adjustment sliding groove, and the fine adjustment block is slidably connected to the fine adjustment sliding groove; finely tune piece fixedly connected with finely tune the stopper, finely tune the sliding tray and offer the finely tune spacing groove that is vertical setting, finely tune stopper sliding connection in finely tune the spacing groove.

Through adopting above-mentioned technical scheme, fine adjustment piece sliding connection is in fine adjustment sliding tray to realize fine adjustment piece and the sliding connection who places the board, fine adjustment stopper has reduced the possibility that fine adjustment piece deviates from fine adjustment sliding tray with setting up of fine adjustment spacing groove.

Optionally, a plurality of connecting T-shaped grooves are formed in the upper surface of the fixing plate, a connecting T-shaped block is fixedly connected to the bottom of the placing plate, and the connecting T-shaped block is slidably connected to the connecting T-shaped grooves.

Through adopting above-mentioned technical scheme, connect T-shaped piece sliding connection in connecting the T-shaped groove to realize the fixed plate and place the dismantlement of board and be connected.

Optionally, the length of the connecting T-shaped block is greater than that of the placing plate, the connecting T-shaped block is provided with a positioning hole, a positioning screw is connected to the positioning hole in an internal thread manner, and the bottom of the positioning screw is abutted to the fixing plate.

Through adopting above-mentioned technical scheme, fix the position of connecting the T-shaped piece through positioning screw, and then fix the position of placing the board.

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

the positions of the placing port and the die are adjusted through the position adjusting mechanism, so that the die and the placing port are positioned on the same straight line, and paint on the die is conveniently smeared on a workpiece when the silica gel printing head is used;

connect T-shaped piece sliding connection in connecting the T-shaped groove to realize the fixed plate and place the board can dismantle and be connected.

Drawings

FIG. 1 is a schematic structural diagram of a computer-controlled workpiece painting device according to the present application.

Fig. 2 is a schematic structural diagram mainly used for showing a pushing mechanism in the present application.

Fig. 3 is an exploded view of the present application primarily showing the detachable connection of the vertical plate to the mounting block.

Fig. 4 is an exploded view of the present application primarily showing the connector barrel and mounting barrel.

Fig. 5 is a cross-sectional view of the present application primarily showing the axial slots and snap-in slots.

Fig. 6 is a schematic structural view mainly used for showing a sliding T-block and a sliding T-groove in the present application.

Fig. 7 is a schematic structural diagram mainly used for showing a position adjusting mechanism in the present application.

Fig. 8 is a schematic structural diagram of a coarse tuning block and a coarse tuning member according to the present application.

Fig. 9 is a schematic structural diagram mainly used for showing a fine adjustment assembly in the present application.

Fig. 10 is a schematic structural diagram mainly used for showing the fine adjustment block and the fine adjustment sliding groove in the present application.

Description of reference numerals: 1. a work table; 2. a paint cartridge; 3. placing the plate; 4. pushing the electric cylinder; 5. scraping the block; 6. a brush; 7. pressing the electric cylinder; 8. a silica gel printing head; 9. a limiting plate; 10. sliding the T-shaped block; 11. sliding the T-shaped groove; 12. installing a T-shaped groove; 13. mounting blocks; 14. installing a T-shaped block; 15. a connecting cylinder; 16. mounting the cylinder; 17. stamping; 18. an axial slot; 19. a clamping groove; 20. a fixed block; 21. a collecting hopper; 22. a socket; 23. a storage box; 24. a height increasing platform; 25. a placement port; 26. a connecting rod; 27. a vertical plate; 28. a transverse plate; 29. a handle; 30. a fixing plate; 31. placing the blocks; 32. coarse adjusting blocks; 33. coarsely adjusting the sliding groove; 34. coarsely adjusting a limiting block; 35. roughly adjusting a limit groove; 36. roughly adjusting the screw rod; 37. roughly adjusting a rotating rod; 38. coarse adjustment of the bearing; 39. finely adjusting blocks; 40. fine adjustment of the sliding groove; 41. finely adjusting the limiting block; 42. finely adjusting the limiting groove; 43. fine adjustment of the screw; 44. connecting the T-shaped grooves; 45. connecting the T-shaped block; 46. positioning a screw rod; 47. and (7) sealing the plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment of the application discloses computer work piece painting device. Referring to fig. 1, a painting apparatus with a positioning mechanism includes a body including a table 1, the table 1 having an "L" shape in vertical section; the workbench 1 is fixedly connected with a height increasing table 24 through bolts, the upper surface of the height increasing table 24 is fixedly connected with a paint box 2 through bolts, and the height increasing table 24 is used for increasing the height of the paint box 2. The inside cavity of paint box 2 and upper end are the opening setting, paint box 2 is used for holding the paint vehicle, workstation 1 still is connected with the board 3 of placing that is used for placing the computer work piece, place and offer the mouth 25 of placing that is used for placing the computer work piece on the board 3, the computer work piece is connected with the connecting rod 26 that is convenient for the computer work piece to take out from placing the mouth 25, the thickness of computer work piece is greater than the degree of depth of placing the mouth 25, place when the computer work piece in placing mouthful 25, connecting rod 26 highly is greater than the height of placing board 3 surfaces in vertical direction, be equipped with the impression 17 the same with computer work piece shape on paint box 2, workstation 1 still is connected with paints the paint component on the computer work piece with the paint vehicle in the impression 17.

Referring to fig. 1 and 2, the painting assembly includes a pushing member pushing paint into the stamp 17, and a pressing member connected to the pushing member and transferring the paint in the stamp 17 to a computer work piece.

Referring to fig. 2 and 3, the pushing component includes a pushing electric cylinder 4 fixedly connected to the side wall of the workbench 1, an output shaft of the pushing electric cylinder 4 is fixedly connected with a connecting piece, the connecting piece includes a vertical plate 27 fixedly connected to the output shaft of the pushing electric cylinder 4, a transverse plate 28 is fixedly connected to the upper end of the vertical plate 27, and the vertical plate 27 and the transverse plate 28 can be fixed through bolts, glue bonding and the like. The bottom of vertical board 27 is provided with scrapes piece 5 and brush 6, and brush 6 and the lower surface of scraping piece 5 and the interior bottom surface looks butt of paint vehicle box 2, and brush 6 with scrape piece 5 when along paint vehicle box 2 length direction reciprocating motion with the paint vehicle promote to the moulding 17 in.

Referring to fig. 3, in order to facilitate scraping the change of piece 5 and brush 6, brush 6 with scrape the piece 5 and be connected with installation piece 13, brush 6 with scrape the bottom that piece 5 bonds in installation piece 13 through glue, the top integrated into one piece of installation piece 13 has two installation T-shaped blocks 14, the lateral wall of vertical board 27 is seted up along 2 length direction of paint vehicle box and is installed T-shaped groove 12 with 14 one-to-one of installation T-shaped block, installation T-shaped groove 12 has two, two installation T-shaped blocks 14 slide joint in two installation T-shaped grooves 12 respectively, thereby installation T-shaped block 14 carries out fixed connection through bolt and vertical board 27 and realizes the fixed connection of installation piece 13 and vertical board 27.

Referring to fig. 2 and 4, the pressing member includes an electric pressing cylinder 7 fixedly connected to the bottom surface of the horizontal plate 28, and a silicone print head 8 is connected to an output shaft of the electric pressing cylinder 7.

Referring to fig. 4 and 5, in order to facilitate the replacement of the silica gel printing head 8, the output shaft of the pressing electric cylinder 7 is fixedly connected with the connecting cylinder 15, the connecting cylinder 15 is hollow and is open towards one end of the paint box 2, the top of the silica gel printing head 8 is fixedly connected with the mounting cylinder 16, and the mounting cylinder 16 is slidably connected with the connecting cylinder 15. Specifically, axial groove 18 has been seted up along its inner wall to the one end that the installation section of thick bamboo 16 was kept away from to the one end orientation that connecting cylinder 15 is close to installation section of thick bamboo 16, and axial groove 18 sets up along the axial of connecting cylinder 15, and axial groove 18 is rectangular shape, and joint groove 19 has been seted up along its circumference to the inner wall of connecting cylinder 15, and joint groove 19 is linked together with axial groove 18. The clamping groove 19 is located at the bottom of the axial groove 18, the outer wall of the mounting cylinder 16 is fixedly connected with a fixing block 20, the cross section of the fixing block 20 is rectangular, the fixing block 20 is slidably clamped in the axial groove 18 and the clamping groove 19, and the fixing block 20 is fixed through a bolt.

Referring to fig. 1 and 6, in order to conveniently limit the moving direction of the connecting piece, a limiting plate 9 is integrally formed on the side wall of the workbench 1, and the height of the limiting plate 9 in the vertical direction is greater than that of the transverse plate 28; the bottom surface of the limiting plate 9 is provided with a sliding T-shaped groove 11, the opening direction of the sliding T-shaped groove 11 is parallel to the length direction of the paint box 2, the top of the transverse plate 28 is fixedly connected with a sliding T-shaped block 10, and the sliding T-shaped block 10 is connected to the sliding T-shaped groove 11 in a sliding mode; the stopper plate 9 is bonded with a seal plate 47 for sealing the notch of the sliding T-shaped groove 11.

Referring to fig. 1, in order to facilitate the collection of the paint discharged from both sides of paint box 2, a collection assembly for collecting the paint discharged from paint box 2 is disposed around paint box 2. The collecting assembly comprises two collecting hoppers 21 fixedly connected to the side wall of the heightening table 24, the two collecting hoppers 21 are respectively positioned at two sides of the paint box 2, and one side of each collecting hopper 21 close to the workbench 1 is fixedly connected with the workbench 1 through a bolt. When collecting hopper 21 and workstation 1 through bolt and workstation 1 looks fixed connection, paint vehicle box 2 is with increasing platform 24 looks fixed connection, the projection of die print 17 and silica gel printer head 8 at the horizontal plane is on same straight line, the inside cavity of collecting hopper 21 and upper end are the opening setting, the bellmouth 22 has been seted up to the lateral wall of collecting hopper 21, bellmouth 22 is close to the bottom of collecting hopper 21, the slip joint has the case 23 that is used for depositing the paint vehicle in the bellmouth 22, the one end that increases platform 24 is kept away from to case 23 is fixedly connected with the handle 29 of being convenient for spur case 23 still.

Referring to fig. 7, because computer workpieces with different sizes need to be painted, the paint box 2 with different stamps 17 and the different placing plate 3 with the placing openings 25 need to be replaced, in the application, the placing plate 3 is connected with a position adjusting mechanism, and the position adjusting mechanism adjusts the positions of the placing plate 3 and the paint box 2 so that the stamps 17 and the placing openings 25 are in the same straight line, so that the computer workpieces are painted by the silica gel printing head 8.

Referring to fig. 7, a fixed plate 30 is connected to the bottom of the placement plate 3, the fixed plate 30 is rectangular, a placement block 31 is connected to the bottom of the fixed plate 30, and the position adjustment mechanism includes a coarse adjustment unit for driving the placement block 31 to move in the width direction of the paint box 2 to perform coarse adjustment of the position of the placement block 31 and a fine adjustment unit for driving the fixed plate 30 to move in the width direction of the paint box 2 to perform fine adjustment of the position of the placement plate 3.

Referring to fig. 7 and 8, the coarse adjustment assembly includes a coarse adjustment block 32 welded to the side wall of the workbench, a vertical cross section of the coarse adjustment block 32 is rectangular, a coarse adjustment sliding groove 33 is formed in one side of the placement block 31 facing the coarse adjustment block 32, the coarse adjustment sliding groove 33 is formed along the width direction of the paint box 2, the vertical cross section of the coarse adjustment sliding groove 33 is rectangular, the coarse adjustment block 32 is slidably connected in the coarse adjustment sliding groove 33, a coarse adjustment limiting block 34 is fixedly connected to an upper end surface and a lower end surface of the coarse adjustment block 32, a coarse adjustment limiting groove 35 is formed in each of the coarse adjustment sliding grooves 33 in a vertically upward direction and a vertically downward direction, and the two coarse adjustment limiting blocks 34 are slidably connected to the two coarse adjustment limiting grooves 35. In order to facilitate the movement of the placing block 31, the coarse adjusting block 32 is connected with a coarse adjusting member, the coarse adjusting member comprises a coarse adjusting screw rod 36, the coarse adjusting screw rod 36 is coaxially and fixedly connected with a coarse adjusting rotating rod 37, and the coarse adjusting screw rod 36 penetrates through the coarse adjusting block 32 and is in threaded connection with the coarse adjusting block 32; the rough adjusting rotating rod 37 is rotatably connected with the placing block 31, specifically, the placing block 31 is fixedly connected with a rough adjusting bearing 38, an outer ring of the rough adjusting bearing 38 is fixedly connected with the placing block 31, and the rough adjusting rotating rod 37 is coaxially and fixedly connected with an inner ring of the rough adjusting bearing 38.

Referring to fig. 9 and 10, the fine adjustment assembly includes a fine adjustment block 39 fixedly connected to the bottom of the fixing plate 30, the vertical section of the fine adjustment block 39 is rectangular, a fine adjustment sliding groove 40 is formed on the upper surface of the placement block 31 along the width direction of the paint box 2, and the fine adjustment block 39 is slidably connected to the fine adjustment sliding groove 40. The two sides of the fine adjustment block 39 are fixedly connected with a fine adjustment limiting block 41 respectively, the fine adjustment limiting block 41 is rectangular, fine adjustment limiting grooves 42 are formed in the two sides of the fine adjustment sliding groove 40 respectively, and the two fine adjustment limiting blocks 41 are connected to the two fine adjustment limiting grooves 42 in a sliding mode respectively.

Referring to fig. 9 and 10, in order to facilitate driving the fixing plate 30 to move, the fine adjustment block 39 is connected with a fine adjustment piece, the fine adjustment piece includes a fine adjustment screw 43, a pitch of the fine adjustment screw 43 is smaller than a pitch of the coarse adjustment screw 36, the fine adjustment screw 43 is coaxially and fixedly connected with a fine adjustment rotating rod, and the fine adjustment screw 43 penetrates through the fine adjustment block 39 and is in threaded connection with the fine adjustment block 39; the fine adjustment dwang is to be rotated with placing piece 31 and be connected, and is concrete, places piece 31 fixedly connected with fine adjustment bearing, and the outer lane fixed connection of fine adjustment bearing is in placing piece 31, the inner circle of the coaxial fixedly connected with fine adjustment bearing of fine adjustment dwang.

Referring to fig. 9, a plurality of connection T-shaped grooves 44 have been seted up along paint vehicle box 2's width direction to the upper surface of fixed plate 30, and a plurality of connection T-shaped grooves 44 are equidistant interval setting along paint vehicle box 2's length direction, place a plurality of connection T-shaped blocks 45 of bottom fixedly connected with of board 3, connect T-shaped block 45 sliding connection in connection T-shaped groove 44. In this application, the length of connecting T-shaped piece 45 is greater than the length of placing board 3, and every limiting plate 9 has seted up the locating hole from the upper surface is vertical downwards, and the locating hole on every limiting plate 9 has two, and two locating holes are located the both ends of limiting plate 9 respectively, and every locating hole female connection has positioning screw 46, and positioning screw 46's bottom and fixed plate 30 looks butt.

The implementation principle of the painting device with the positioning mechanism in the embodiment of the application is as follows: when the paint box 2 with different specific die marks 17 needs to be replaced, the bolt connecting the collecting hopper 21 and the workbench 1 is firstly screwed out, the collecting hopper 21 and the heightening platform 24 are moved, the paint box 2 is replaced, the collecting hopper 21 and the heightening platform 24 are moved, the collecting hopper 21 is fixed through the bolt, and the paint box 2 is fixed through the bolt. At this time, the projection of the stamp 17 and the silicone pad 8 on the horizontal plane are on the same horizontal line, the connecting T-shaped block 45 at the bottom of the placement plate 3 is slidably connected to the connecting T-shaped groove 44, and the placement plate 3 is fixed in position by a bolt. Rotating a rough adjusting rotating rod 37, wherein the rough adjusting rotating rod 37 drives a rough adjusting screw rod 36 to rotate in a rough adjusting block 32, the rough adjusting rotating rod 37 drives the placing block 31 to move as the rough adjusting screw rod 36 is rotatably connected with the placing block 31, and meanwhile, as the rough adjusting block 32 is slidably connected with a rough adjusting sliding groove 33, the placing block 31 cannot rotate but moves along the width direction of the paint box 2 along with the rough adjusting screw rod 36, so that the rough adjustment of the position of the placing block 31 is realized; the fine adjustment rotating rod is rotated, the fine adjustment screw 43 connected with the fine adjustment rotating rod rotates together, the fine adjustment screw 43 drives the fine adjustment block 39 to move, the placing block 31 is connected with the fine adjustment block 39 in a sliding mode, the fine adjustment block 39 moves in the width direction of the paint box 2, the fixing plate 30 is driven to move in the width direction of the paint box 2, the thread pitch of the fine adjustment screw 43 is smaller than that of the coarse adjustment screw 36, the distance of movement of the fixing plate 30 in a circle of rotation of the fine adjustment screw 43 is smaller than that of movement of the mounting block 13 in a circle of rotation of the coarse adjustment screw 36, fine adjustment of the position of the placing plate 3 is achieved, and the die mark 17 is conveniently aligned with the placing opening 25.

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 (8)

1. The utility model provides a painting device with positioning mechanism, includes the organism, the organism is connected with places board (3) that is used for placing the computer work piece, the organism is connected with paint box (2) of depositing the paint vehicle, the organism is connected with silica gel printer head (8), its characterized in that: the computer storage box is characterized in that a stamp (17) is arranged on the placing plate (3), a placing opening (25) used for placing a computer workpiece is formed in the placing plate (3), and the placing plate (3) is connected with a position adjusting mechanism which is used for adjusting the positions of the placing plate (3) and the paint box (2) to enable the stamp (17) and the placing opening (25) to be located on the same straight line.

2. The painting device with a positioning mechanism according to claim 1, characterized in that: the bottom of the placing plate (3) is connected with a fixing plate (30), the bottom of the fixing plate (30) is connected with a placing block (31), the position adjusting mechanism comprises a coarse adjusting assembly and a fine adjusting assembly, the coarse adjusting assembly drives the placing block (31) to move along the width direction of the paint box (2) so as to perform coarse position adjustment on the placing block (31), and the fine adjusting assembly drives the fixing plate (30) to move along the width direction of the paint box (2) so as to perform fine position adjustment on the placing plate (3).

3. The painting device with a positioning mechanism according to claim 2, characterized in that: the coarse adjustment component is fixedly connected to a coarse adjustment block (32) of the machine body and a coarse adjustment part in threaded connection with the coarse adjustment block (32); the placing block (31) is connected with the coarse adjusting block (32) in a sliding manner; the coarse adjustment component penetrates through the coarse adjustment block (32), the coarse adjustment component comprises a coarse adjustment screw rod (36) and a coarse adjustment rotating rod (37) coaxially connected with the coarse adjustment screw rod (36), the coarse adjustment screw rod (36) is in threaded connection with the coarse adjustment block (32), and the coarse adjustment rotating rod (37) is in rotating connection with the placement block (31).

4. The painting device with a positioning mechanism according to claim 3, characterized in that: a rough adjusting sliding groove (33) is formed in one side, facing the rough adjusting block (32), of the placing block (31), and the rough adjusting block (32) is connected to the rough adjusting sliding groove (33) in a sliding mode; the coarse adjustment block (32) is fixedly connected with a coarse adjustment limiting block (34), a coarse adjustment limiting groove (35) which is vertically arranged is formed in the coarse adjustment sliding groove (33), and the coarse adjustment limiting block (34) is connected to the coarse adjustment limiting groove (35) in a sliding mode.

5. The painting device with a positioning mechanism according to claim 2, characterized in that: the fine adjustment assembly comprises a fine adjustment block (39) fixedly connected to the bottom of the fixing plate (30) and a fine adjustment piece in threaded connection with the fine adjustment block (39); fine adjustment piece wears to establish fine adjustment piece (39), fine adjustment piece is including fine adjustment screw rod (43), with fine adjustment screw rod (43) coaxial coupling's fine adjustment dwang, fine adjustment screw rod (43) are threaded connection with fine adjustment piece (39), the fine adjustment dwang is to rotate with placing piece (31) and is connected, it is sliding connection with fine adjustment piece (39) to place piece (31), the pitch of fine adjustment screw rod (43) is less than the pitch of coarse adjustment screw rod (36).

6. The painting device with a positioning mechanism according to claim 5, characterized in that: the upper surface of the placing block (31) is provided with a fine adjustment sliding groove (40), and the fine adjustment block (39) is connected to the fine adjustment sliding groove (40) in a sliding manner; finely tune piece (39) fixedly connected with finely tune stopper (41), finely tune sliding tray (40) is seted up and is finely tune spacing groove (42) of vertical setting, finely tune stopper (41) sliding connection is in finely tune spacing groove (42).

7. The painting device with a positioning mechanism according to claim 6, characterized in that: the upper surface of fixed plate (30) has seted up a plurality of connection T-slot (44), the bottom fixedly connected with of placing board (3) connects T-shaped piece (45), connect T-shaped piece (45) sliding connection in connecting T-slot (44).

8. The painting device with a positioning mechanism according to claim 7, characterized in that: the length of the connecting T-shaped block (45) is greater than that of the placing plate (3), the connecting T-shaped block (45) is provided with a positioning hole, a positioning screw rod (46) is connected with the inner thread of the positioning hole, and the bottom of the positioning screw rod (46) is abutted to the fixing plate (30).

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