Spraying equipment for mechanical part machining

By designing a spraying equipment including a base plate, a U-shaped rail frame, a spraying mechanism, a bottom adjustment mechanism and an auxiliary mechanism, the problem of uneven spraying on the inner and outer surfaces of tubular workpieces is solved, and efficient and uniform spraying on the inner and outer surfaces of the pipes is achieved, which is suitable for the processing of mechanical parts.

CN120755016APending Publication Date: 2025-10-10CHONGQING THREE GORGES UNIV
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Patent Information

Application Number
CN202511187506.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2025-10-10

AI Technical Summary

Technical Problem

It is difficult for existing spraying equipment to evenly spray the inner and outer surfaces of tubular workpieces, especially the inner surface spraying of pipe fittings is relatively complicated.

Method used

A spraying device for machining mechanical parts is designed, which includes a base plate, a U-shaped rail frame, a spraying mechanism, a bottom adjustment mechanism, a side frame mechanism and an auxiliary mechanism. The spraying mechanism is moved by a drive motor to drive a gear rod, and the position of the pipe is adjusted by combining the lifting and lateral adjustment cylinders. The auxiliary mechanism is used to clamp and rotate the pipe to achieve uniform spraying on the inner and outer surfaces of the pipe.

Benefits of technology

It achieves efficient and uniform spraying on the inner and outer surfaces of pipe fittings, improves spraying accuracy and stability, and is suitable for small batches or complex-shaped tubular workpieces.

✦ Generated by Eureka AI based on patent content.

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Abstract

The spraying equipment for mechanical part machining comprises a bottom plate, a U-shaped rail frame, a spraying mechanism, a bottom adjusting mechanism, a side frame mechanism and an auxiliary mechanism, the bottom plate is an oval plate, the U-shaped rail frame is fixed to the bottom plate through two supporting seats, the spraying mechanism is movably connected to the U-shaped rail frame, a spraying head is arranged in the spraying mechanism, and the spraying head is movably connected to the bottom adjusting mechanism. A bottom adjusting mechanism is further arranged on the bottom plate, a side frame mechanism is fixed to the other side of the bottom plate, the bottom end of a top frame of the side frame mechanism is movably connected with an auxiliary mechanism, and the auxiliary mechanism is arranged above the pipe fitting to be sprayed. The spraying mechanism is movably connected to the U-shaped rail frame, the spraying head is arranged in the spraying mechanism, and in the using process, the driving motor can drive the two sides of the toothed bar to synchronously rotate, so that the toothed bar moves on the teeth of the rail frame on the outer side, and the spraying mechanism can move and adjust on the U-shaped rail frame at a constant speed; and the outer wall and the inner wall of the to-be-sprayed pipe fitting can be uniformly sprayed.
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Description

Technical Field

[0001] The invention belongs to the technical field of spraying equipment, and in particular relates to spraying equipment for machining mechanical parts. Background Art

[0002] During machining operations, it's often necessary to spray paint onto the exterior of a workpiece to improve its performance. Common coatings include epoxy resins, polyurethanes, and fluorocarbon coatings, typically applied via air spray. Air spraying uses compressed air to atomize the paint and then spray it. It's suitable for spraying small batches or complex shapes, such as tubular workpieces.

[0003] The existing spraying for tubular workpieces is mostly for spraying the outer surface, while spraying the inner surface of the pipe is more complicated. There is a lack of spraying equipment that can evenly spray the inner and outer surfaces of the pipe.

[0004] Based on this, a spraying equipment for machining mechanical parts is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a spraying device for machining mechanical parts in view of the above-mentioned deficiencies in the prior art, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: a spraying device for machining mechanical parts, comprising a base plate, a U-shaped rail frame, a spraying mechanism, a bottom adjustment mechanism, a side frame mechanism and an auxiliary mechanism; The bottom plate is an elliptical plate, and a U-shaped rail is fixed on the bottom plate through two support seats. A spraying mechanism is movably connected to the U-shaped rail, and a spraying head is provided in the spraying mechanism. A bottom adjustment mechanism is also provided on the bottom plate; The bottom adjustment mechanism includes an annular plate, a transverse rail, a lifting adjustment cylinder, an intermediate plate, a lateral adjustment cylinder and an L-shaped seat. Four transverse rails are fixed at equal intervals on the middle diameter line of the annular plate. The inner ends of the transverse rails are fixed to the intermediate plate. A lifting adjustment cylinder is vertically installed in the middle of the bottom surface of each transverse rail. The fixed end of the lifting adjustment cylinder is vertically fixed to the bottom plate. A groove is provided on the transverse rail. A lateral adjustment cylinder is fixed on the side of each groove close to the intermediate plate. An L-shaped seat is movably connected to the telescopic shaft of the adjustment cylinder. The L-shaped seat is slidably connected in the groove. Under the action of the four L-shaped seats, the pipe to be sprayed is placed on the bottom adjustment mechanism. A side frame mechanism is fixed to the other side of the bottom plate, and an auxiliary mechanism is movably connected to the bottom end of the top frame of the side frame mechanism, and the auxiliary mechanism is arranged above the pipe to be sprayed.

[0007] As a further explanation of the present invention, the U-shaped rail frame is composed of an outer rail frame and an inner rail frame whose ends are fixed. The inner side of the outer rail frame is provided with teeth, and a limiting groove is provided in the middle of the outer side of the inner rail frame. The spraying mechanism includes an outer plate, a gear rod, a driving motor, a limiting ball and a spray head. The outer plate is slidably connected to the outer side of the U-shaped rail frame, and is rotatably connected to a gear rod inside the outer plate. The gear rod is meshed with the teeth, and the gear rod is driven by a driving motor installed on the outer side of the outer plate. The other side of the outer plate is rotatably connected to the limiting ball, and the limiting ball is movably connected in the limiting groove. A spray head is fixed to the outer side of the outer plate, and the spray head is connected to an external paint bucket and a spray pump through a pipeline.

[0008] As a further explanation of the present invention, an opening is provided on one side of the outer plate, and the opening is used for the support seat to pass through when the spraying mechanism moves on the U-shaped rail frame.

[0009] As a further explanation of the present invention, two drive motors are provided, and the drive motors are specifically micro servo motors.

[0010] As a further explanation of the present invention, an active roller is rotatably connected to the vertical section of the L-shaped seat, and the active roller is driven by a micro motor installed in the L-shaped seat. An auxiliary roller is rotatably connected to the transverse section of the L-shaped seat, and the axis of the auxiliary roller is on the same straight line as the axis of the transverse section of the L-shaped seat.

[0011] As a further illustration of the present invention, the outer sides of the active roller and the auxiliary roller are both provided with anti-slip grooves.

[0012] As a further explanation of the present invention, the side frame mechanism includes a bottom frame, an intermediate cylinder, a top frame, a limit frame, a limit cylinder and a rotating seat. The bottom frame is vertically fixed to the bottom plate, the top of the bottom frame is fixed with an intermediate cylinder, the top of the telescopic shaft of the intermediate cylinder is fixed with a top frame, the outside of the top frame is fixed with a limit frame near the bottom end, a plurality of limit cylinders are fixed at equal intervals on the same vertical line outside the bottom frame, the limit frame is sleeved in the limit cylinder, the other end of the top frame is fixed with a rotating seat, the rotating end of the rotating seat is driven by a steering motor installed in the rotating seat, and the auxiliary mechanism is installed at the bottom end of the rotating end.

[0013] As a further illustration of the present invention, the length of the limiting frame is not less than the adjustment length of the middle cylinder, and the distance between the topmost limiting cylinder and the topmost limiting cylinder is greater than the length of the limiting frame.

[0014] As a further explanation of the present invention, the auxiliary mechanism is composed of two folding line frames, an intermediate cavity is provided in the folding line frame, an auxiliary cylinder with the same oblique direction as the folding line frame is fixed in the hollow cavity, a vertical auxiliary splint is fixed to the end of the telescopic shaft of the auxiliary cylinder, and the auxiliary splint is movably connected in the open groove of the hollow cavity.

[0015] As a further illustration of the present invention, lateral protective plates are fixed on the bottom plate, and leveling bases are respectively fixed at the four corners of the bottom end of the bottom plate.

[0016] Compared with the prior art, the present invention has the following advantages: 1. The present invention fixes a U-shaped rail frame on the bottom plate, and a spraying mechanism is movably connected to the U-shaped rail frame. A spraying head is provided in the spraying mechanism. During use, a driving motor can drive both sides of the gear rod to rotate synchronously, so that the gear rod moves on the teeth of the outer rail frame, so that the spraying mechanism can move and adjust at a uniform speed on the U-shaped rail frame, which is convenient for uniform spraying of the outer wall and the inner wall of the spraying pipe fitting.

[0017] 2. The bottom plate of the present invention is also provided with a bottom adjustment mechanism, which includes an annular plate, a transverse rail, a lifting adjustment cylinder, an intermediate plate, a lateral adjustment cylinder and an L-shaped seat. Four transverse rails are fixed at equal intervals on the middle diameter line of the annular plate, and the inner ends of the transverse rails are fixed to the intermediate plate. When the pipe to be sprayed is connected to the bottom adjustment mechanism, the lateral adjustment cylinder is first used to adjust the position of the L-shaped seat in the transverse rail so that the inner diameter of the circle where the four L-shaped seats are located is the same as the inner diameter of the pipe to be sprayed. Then, the pipe to be sprayed is placed on the L-shaped seat, and the lateral adjustment cylinder is controlled again so that the active roller of the L-shaped seat is against During the spraying process, the outer side of the pipe to be sprayed can be driven by a micro motor to rotate the active roller to drive the pipe to be sprayed to rotate at a uniform speed on the bottom adjustment mechanism, so that the outer wall and the inner wall of the pipe to be sprayed can be evenly sprayed. A lifting adjustment cylinder is vertically installed in the middle of the bottom surface of each transverse rail, and the fixed end of the lifting adjustment cylinder is vertically fixed to the bottom plate. By adjusting the height of the lifting adjustment cylinder, the height of the bottom adjustment mechanism can be adjusted, so that the spraying height can be adjusted during the spraying process of the pipe to be sprayed, which is convenient for even spraying the top or bottom of the pipe to be sprayed.

[0018] 3. A side frame mechanism is also provided on the bottom plate of the present invention. The bottom end of the top frame of the side frame mechanism is movably connected to an auxiliary mechanism. The auxiliary mechanism is provided above the pipe to be sprayed. When the bottom end of the pipe to be sprayed needs to be sprayed, the side frame mechanism and the auxiliary mechanism are used to adjust the pipe to be sprayed so that the bottom end of the pipe to be sprayed leaves the bottom adjustment mechanism and the bottom end of the pipe to be sprayed is sprayed.

[0019] 4. The auxiliary mechanism of the present invention is composed of two folding-line frames, an intermediate cavity is provided in the folding-line frame, an auxiliary cylinder is fixed in the hollow cavity with the same oblique direction as the folding-line frame, and a vertical auxiliary splint is fixed at the end of the telescopic shaft of the auxiliary cylinder, and the auxiliary splint is movably connected in the open groove of the hollow cavity. When spraying pipe fittings, when it is necessary to spray the bottom end of the pipe fitting to be sprayed, the distance between the two auxiliary splints is first adjusted by telescoping the auxiliary cylinder so that the distance between the two auxiliary splints is the same as the outer diameter of the pipe fitting to be sprayed, and then the height of the auxiliary mechanism is adjusted by the intermediate cylinder, so that the height of the auxiliary splint can be adjusted synchronously, so that the height of the auxiliary splint can complete the clamping of the pipe fitting to be sprayed, and the auxiliary cylinder is operated to contract so that the auxiliary splint is stably clamped on the outside of the pipe fitting to be sprayed, and then the height of the intermediate cylinder is extended so that the bottom end of the pipe fitting to be sprayed leaves the bottom adjustment mechanism. When there is a gap between the bottom end of the pipe to be sprayed and the bottom adjustment mechanism, the extension of the middle cylinder is stopped, and the spraying mechanism is used to drive the spraying head to move to the arc at the bottom end of the U-shaped rail frame, so that the spraying head is directed toward the bottom end of the pipe to be sprayed for spraying, and the steering motor is used to drive the rotating seat to rotate simultaneously, so that the auxiliary mechanism can drive the pipe to be sprayed to rotate, and the uniform spraying operation of the bottom end of the pipe to be sprayed can be completed. When spraying the vertical outer and inner walls of the pipe to be sprayed, the bottom adjustment mechanism is used to drive the pipe to be sprayed to rotate at a uniform speed, so that the spraying mechanism drives the spraying head to move in the vertical section of the U-shaped rail frame. When spraying the top end of the pipe to be sprayed, the spraying mechanism drives the spray head to move in the oblique section of the U-shaped rail frame, and at the same time, the bottom adjustment mechanism is used to lower the height of the pipe to be sprayed, so as to facilitate the uniform spraying operation on the top end of the pipe to be sprayed, which is efficient and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection of the spraying mechanism of the present invention; Figure 3 This is a top view of the bottom adjustment mechanism and the U-shaped rail mounting structure of the present invention; Figure 4 This is an enlarged view of the L-shaped seat connection structure of the present invention; Figure 5 It is a schematic diagram of the internal structure of the auxiliary mechanism of the present invention.

[0021] Description of reference numerals: 1-base plate; 11-leveling base; 2-U-shaped rail frame; 21-outer rail frame; 22-inner rail frame; 23-teeth; 24-limiting groove; 3-spraying mechanism; 31-outer plate; 32-tooth rod; 33-drive motor; 34-limiting ball; 35-spraying head; 4-bottom adjustment mechanism; 41-annular plate; 42-transverse rail; 43-lifting adjustment cylinder; 44-middle plate; 45-lateral adjustment cylinder; 46-L-shaped seat; 47-active roller; 48-auxiliary roller; 5-side frame mechanism; 51-bottom frame; 52-middle cylinder; 53-top frame; 54-limiting frame; 55-limiting cylinder; 56-rotating seat; 6-auxiliary mechanism; 61-hollow cavity; 62-auxiliary cylinder; 63-auxiliary splint; 7-lateral protection plate; 8-pipe fittings to be sprayed. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figures 1-5 As shown, the present invention provides a technical solution: a spraying device for machining mechanical parts, wherein the mechanical parts are specifically pipes 8 to be sprayed, and the spraying device includes a base plate 1, a U-shaped rail frame 2, a spraying mechanism 3, a bottom adjustment mechanism 4, a side frame mechanism 5 and an auxiliary mechanism 6; The base plate 1 is an elliptical plate, and leveling bases 11 are fixed at the four corners of the bottom end of the base plate 1. The leveling base 11 can complete the leveling operation of the base plate 1, so as to facilitate keeping the pipe 8 to be sprayed in a vertical state during the spraying process, and facilitate uniform spraying operation on the outer wall and inner wall of the pipe 8 to be sprayed.

[0024] A U-shaped rail frame 2 is fixed on the bottom plate 1 via two support seats 25. A spraying mechanism 3 is movably connected to the U-shaped rail frame 2. A spraying head 35 is provided in the spraying mechanism 3. Specifically, the U-shaped rail 2 is composed of an outer rail 21 and an inner rail 22 fixed at their ends. Both the outer rail 21 and the inner rail 22 are U-shaped structures, and an inwardly concave oblique section is provided at the top end of the outer rail 21 and the inner rail 22. The inwardly concave oblique section can be used to spray the top and bottom ends of the pipe 8 to be sprayed, thereby improving the uniformity of the spraying process of the pipe 8 to be sprayed.

[0025] The inner side of the outer rail 21 is provided with teeth 23, and the outer side of the inner rail 22 is provided with a limiting groove 24 in the middle. The spraying mechanism 3 includes an outer plate 31, a gear rod 32, a driving motor 33, a limiting ball 34 and a spray head 35. The outer plate 31 is slidably connected to the outer side of the U-shaped rail 2, and is rotatably connected to the gear rod 32 inside the outer plate 31. The gear rod 32 is meshed with the gear teeth 23. The gear rod 32 is driven by a driving motor 33 installed on the outer side of the outer plate 31. Two driving motors 33 are provided, and the driving motors 33 are specifically micro servo motors. The two driving motors 33 can drive the two sides of the gear rod 32 to rotate synchronously, so that the gear rod 32 moves on the teeth 23 of the outer rail 21, so that the spraying mechanism 3 can move and adjust at a uniform speed on the U-shaped rail 2.

[0026] The other side of the outer plate 31 is rotatably connected to a limiting ball 34, and the limiting ball 34 is movably connected in the limiting groove 24. Under the action of the limiting ball 34 and the limiting groove 24, the outer plate 31 can be stably connected to the outer side of the U-shaped rail frame 2, thereby improving the stability of the spraying mechanism 3 during use, and further improving the spraying accuracy during the spraying process.

[0027] A spray head 35 is fixed on the outside of the outer plate 31. The spray head 35 is connected to an external paint bucket and a spray pump through a pipeline. The spray pump uses the paint in the paint bucket to be delivered to the spray head 35 through the pipeline. The spray head 35 can be used to spray the outer wall and inner wall of the spray pipe 8 to be sprayed.

[0028] An opening is provided on one side of the outer plate 31 , which is used for the support seat 25 to pass through when the spraying mechanism 3 moves on the U-shaped rail 1 , and can also improve the stability of the outer plate 31 during the movement outside the U-shaped rail 2 .

[0029] The bottom plate 1 is also provided with a bottom adjustment mechanism 4, which includes an annular plate 41, a transverse rail 42, a lifting adjustment cylinder 43, an intermediate plate 44, a lateral adjustment cylinder 45 and an L-shaped seat 46. Four transverse rails 42 are fixed at equal intervals on the middle diameter line of the annular plate 41, and the inner ends of the transverse rails 42 are fixed on the intermediate plate 44. A lifting adjustment cylinder 43 is vertically installed in the middle of the bottom surface of each transverse rail 42, and the fixed end of the lifting adjustment cylinder 43 is vertically fixed on the bottom plate 1. The height of the bottom adjustment mechanism 4 can be adjusted by adjusting the height of the lifting adjustment cylinder 43, so that the spraying height can be adjusted during the spraying process of the pipe fitting 8 to be sprayed, so as to facilitate uniform spraying operation on the top or bottom end of the pipe fitting 8 to be sprayed.

[0030] The transverse rail 42 is provided with a groove, and a lateral adjustment cylinder 45 is fixed on one side of each groove close to the middle plate 44. An L-shaped seat 46 is movably connected to the telescopic shaft of the adjustment cylinder 45, and the L-shaped seat 46 is slidably connected in the groove. An active roller 47 is rotatably connected to the vertical section of the L-shaped seat 46, and the active roller 47 is driven by a micro motor installed in the L-shaped seat 46. An auxiliary roller 48 is rotatably connected to the transverse section of the L-shaped seat 46, and the axis center line of the auxiliary roller 48 is in the same straight line as the axis center line of the transverse section of the L-shaped seat 46. The outer sides of the active roller 47 and the auxiliary roller 48 are provided with Anti-slip grooves. When the pipe 8 to be sprayed is connected to the bottom adjustment mechanism 4, first use the lateral adjustment cylinder 45 to adjust the position of the L-shaped seat 46 in the transverse rail 42 so that the inner diameter of the circle where the four L-shaped seats 46 are located is the same as the inner diameter of the pipe 8 to be sprayed. Then place the pipe 8 to be sprayed on the L-shaped seat 46, and control the lateral adjustment cylinder 45 again so that the active roller 47 of the L-shaped seat 46 is against the outside of the pipe 8 to be sprayed. During the spraying process, the micro-motor drives the active roller 47 to rotate, which can drive the pipe 8 to be sprayed to rotate at a uniform speed on the bottom adjustment mechanism 4, so that the outer wall and inner wall of the pipe 8 to be sprayed can be evenly sprayed.

[0031] A side frame mechanism 5 is fixed to the other side of the base plate 1, and the bottom end of the top frame 53 of the side frame mechanism 5 is movably connected to an auxiliary mechanism 6. The auxiliary mechanism 6 is arranged above the pipe fitting 8 to be sprayed. When the bottom end of the pipe fitting 8 to be sprayed needs to be sprayed, the side frame mechanism 5 and the auxiliary mechanism 6 are used to adjust the pipe fitting 8 to be sprayed so that the bottom end of the pipe fitting 8 to be sprayed leaves the bottom adjustment mechanism 4, and the bottom end of the pipe fitting 8 to be sprayed is sprayed.

[0032] Specifically, the side frame mechanism 5 includes a bottom frame 51, an intermediate cylinder 52, a top frame 53, a limit frame 54, a limit cylinder 55 and a rotating seat 56. The bottom frame 51 is vertically fixed on the base plate 1, and the top of the bottom frame 51 is fixed with the intermediate cylinder 52. The top of the telescopic shaft of the intermediate cylinder 52 is fixed with the top frame 53. The lifting and lowering adjustment of the intermediate cylinder 52 can drive the height adjustment of the top frame 53, thereby cooperating to adjust the height of the auxiliary mechanism 6.

[0033] A limiting frame 54 is fixed on the outside of the top frame 53 near the bottom end, and a plurality of limiting cylinders 55 are fixed on the outside of the bottom frame 51 at equal intervals on the same vertical line. The limiting frame 54 is sleeved in the limiting cylinder 55. Under the action of the limiting frame 54 and the limiting cylinder 55, the stability of the top frame 53 during the lifting and lowering adjustment process can be improved.

[0034] For ease of use, the length of the limiting frame 54 is not less than the adjustment length of the middle cylinder 52 , and the distance between the topmost limiting cylinders 55 and the topmost limiting cylinders 55 is greater than the length of the limiting frame 54 .

[0035] A rotating base 56 is fixed to the bottom of the other end of the top frame 53 . The rotating end of the rotating base 56 is driven by a steering motor installed in the rotating base 56 . The auxiliary mechanism 6 is installed at the bottom of the rotating end.

[0036] The auxiliary mechanism 6 is composed of two folding-line frames, each of which is provided with an intermediate cavity 61. An auxiliary cylinder 62 is fixed in the hollow cavity 61 in the same oblique direction as the folding-line frame. A vertical auxiliary splint 63 is fixed to the end of the telescopic shaft of the auxiliary cylinder 62. The auxiliary splint 63 is movably connected to the open groove of the hollow cavity 61. When spraying pipe fittings, when it is necessary to spray the bottom end of the pipe fitting 8 to be sprayed, the distance between the two auxiliary splints 63 is first adjusted by telescoping the auxiliary cylinder 62 so that the distance between the two auxiliary splints 63 is the same as the outer diameter of the pipe fitting 8 to be sprayed. Then, the height of the auxiliary mechanism 6 is adjusted by the intermediate cylinder 52, so that the height of the auxiliary splint 63 can be adjusted synchronously, so that the height of the auxiliary splint 63 can complete the clamping of the pipe fitting 8 to be sprayed. The auxiliary cylinder 62 is operated to contract so that the auxiliary splint 63 is stably clamped on the outside of the pipe fitting 8 to be sprayed. Then, the height of the intermediate cylinder 52 is extended so that the bottom end of the pipe fitting 8 to be sprayed leaves the bottom adjusting mechanism 4. When the distance between the bottom end of the pipe fitting 8 to be sprayed and the bottom adjusting mechanism 4 is 5-8 cm, the extension of the intermediate cylinder 52 is stopped, and the spraying mechanism 3 is used to drive the spray head 35 to move to the arc at the bottom end of the U-shaped rail frame 2, so that the spray head 35 is sprayed toward the bottom end of the pipe fitting 8 to be sprayed. The steering motor is used synchronously to drive the rotating seat 56 to rotate, so that the auxiliary mechanism 6 can drive the pipe fitting 8 to be sprayed to rotate, and the uniform spraying operation of the bottom end of the pipe fitting 8 to be sprayed can be completed.

[0037] When spraying the vertical outer and inner walls of the pipe 8 to be sprayed, the bottom adjustment mechanism 4 is used to drive the pipe 8 to be sprayed to rotate at a constant speed, so that the spraying mechanism 3 drives the spray head 35 to move in the vertical section of the U-shaped rail frame.

[0038] When spraying at the top of the pipe fitting 8 to be sprayed, the spraying mechanism 3 drives the spray head 35 to move in the oblique section of the U-shaped rail 2, and at the same time, the bottom adjustment mechanism 4 is used to lower the height of the pipe fitting 8 to be sprayed, thereby facilitating uniform spraying of the top of the pipe fitting 8 to be sprayed.

[0039] In order to prevent the spraying liquid from scattering during the spraying process, a lateral protection plate 7 is also fixed on the bottom plate 1.

[0040] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A spraying device for machining mechanical parts, characterized in that: It includes a bottom plate (1), a U-shaped rail frame (2), a spraying mechanism (3), a bottom adjustment mechanism (4), a side frame mechanism (5) and an auxiliary mechanism (6); The bottom plate (1) is an elliptical plate, and a U-shaped rail frame (2) is fixed on the bottom plate (1) via two support seats (25), a spraying mechanism (3) is movably connected to the U-shaped rail frame (2), a spraying head (35) is provided in the spraying mechanism (3), and a bottom adjustment mechanism (4) is also provided on the bottom plate (1); The bottom adjustment mechanism (4) includes an annular plate (41), a transverse rail (42), a lifting adjustment cylinder (43), an intermediate plate (44), a lateral adjustment cylinder (45) and an L-shaped seat (46). Four transverse rails (42) are fixed at equal intervals on the middle diameter line of the annular plate (41). The inner ends of the transverse rails (42) are fixed on the intermediate plate (44). A lifting adjustment cylinder (43) is vertically installed at the middle of the bottom surface of each transverse rail (42). The fixed end of the lifting adjustment cylinder (43) is vertically fixed on the bottom plate (1). A groove is provided on the transverse rail (42). A lateral adjustment cylinder (45) is fixed on one side of each groove close to the intermediate plate (44). An L-shaped seat (46) is movably connected to the telescopic shaft of the adjustment cylinder (45). The L-shaped seat (46) is slidably connected in the groove. Under the action of the four L-shaped seats (46), the pipe (8) to be sprayed is placed on the bottom adjustment mechanism (4); A side frame mechanism (5) is fixed to the other side of the bottom plate (1), and an auxiliary mechanism (6) is movably connected to the bottom end of the top frame (53) of the side frame mechanism (5), and the auxiliary mechanism (6) is arranged above the pipe (8) to be sprayed.

2. The spraying equipment for machining mechanical parts according to claim 1, characterized in that: The U-shaped rail frame (2) is composed of an outer rail frame (21) and an inner rail frame (22) fixed at their ends. The inner side of the outer rail frame (21) is provided with teeth (23). The outer side of the inner rail frame (22) is provided with a limiting groove (24) in the middle. The spraying mechanism (3) includes an outer plate (31), a gear rod (32), a driving motor (33), a limiting ball (34) and a spraying head (35). The outer plate (31) is slidably connected to the outer side of the U-shaped rail frame (2), and the outer plate ( A gear rod (32) is rotatably connected to the outer plate (31), and the gear rod (32) is meshed with the teeth (23). The gear rod (32) is driven by a driving motor (33) installed on the outside of the outer plate (31). The other side of the outer plate (31) is rotatably connected to a limiting ball (34), and the limiting ball (34) is movably connected in the limiting groove (24). A spray head (35) is fixed to the outside of the outer plate (31), and the spray head (35) is connected to an external paint bucket and a spray pump through a pipeline.

3. The spraying equipment for machining mechanical parts according to claim 2, characterized in that: An opening is provided on one side of the outer plate (31), and the opening is used for the support seat (25) to pass through when the spraying mechanism (3) moves on the U-shaped rail frame (1).

4. The spraying equipment for machining mechanical parts according to claim 2, characterized in that: Two drive motors (33) are provided, and the drive motors (33) are specifically micro servo motors.

5. The spraying equipment for machining mechanical parts according to claim 1, characterized in that: An active roller (47) is rotatably connected to the vertical section of the L-shaped seat (46), and the active roller (47) is driven by a micro motor installed in the L-shaped seat (46). An auxiliary roller (48) is rotatably connected to the transverse section of the L-shaped seat (46), and the axis of the auxiliary roller (48) is on the same straight line as the axis of the transverse section of the L-shaped seat (46).

6. The spraying equipment for machining mechanical parts according to claim 5, characterized in that: The outer sides of the active roller (47) and the auxiliary roller (48) are both provided with anti-slip grooves.

7. The spraying equipment for machining mechanical parts according to claim 1, characterized in that: The side frame mechanism (5) comprises a bottom frame (51), an intermediate cylinder (52), a top frame (53), a limiting frame (54), a limiting cylinder (55) and a rotating seat (56). The bottom frame (51) is vertically fixed on the bottom plate (1). The top of the bottom frame (51) is fixed with the intermediate cylinder (52). The top of the telescopic shaft of the intermediate cylinder (52) is fixed with the top frame (53). The limiting frame (54) is fixed on the outside of the top frame (53) near the bottom end. A plurality of limiting cylinders (55) are fixed on the same vertical line outside the bottom frame (51) at equal intervals. The limiting frame (54) is sleeved in the limiting cylinder (55). The bottom of the other end of the top frame (53) is fixed with a rotating seat (56). The rotating end of the rotating seat (56) is driven by a steering motor installed in the rotating seat (56). The auxiliary mechanism (6) is installed at the bottom end of the rotating end.

8. The spraying equipment for machining mechanical parts according to claim 7, characterized in that: The length of the limiting frame (54) is not less than the adjustment length of the middle cylinder (52), and the distance between the limiting cylinders (55) at the top and the limiting cylinders (55) at the top is greater than the length of the limiting frame (54).

9. The spraying equipment for machining mechanical parts according to claim 1, characterized in that: The auxiliary mechanism (6) is composed of two folding-line frames, wherein an intermediate cavity (61) is provided in the folding-line frame, and an auxiliary cylinder (62) having the same oblique direction as the folding-line frame is fixed in the hollow cavity (61), and a vertical auxiliary splint (63) is fixed to the end of the telescopic shaft of the auxiliary cylinder (62), and the auxiliary splint (63) is movably connected in the opening groove of the hollow cavity (61).

10. The spraying equipment for machining mechanical parts according to claim 1, characterized in that: A lateral protective plate (7) is also fixed on the bottom plate (1), and leveling bases (11) are also fixed at the four corners of the bottom end of the bottom plate (1).