Car door paint spraying device

Abstract

The utility model discloses a vehicle door paint spraying device, and relates to the technical field of vehicle door paint spraying. The utility model provides a vehicle door paint spraying device which comprises a material storage part, a paint spraying part, a paint spraying part, a paint spraying part, a paint spraying part and a paint spraying part, the material storage part is provided with a through hole, and a containing cavity for containing spraying materials is formed in the material storage part; the supporting frame is used for supporting the storage piece, and the supporting frame is further provided with a clamping assembly used for clamping the vehicle door to be painted located in the through hole; wherein the inner wall of the through hole is provided with a communicating groove communicated with the containing cavity in the circumferential direction, the material storage part is provided with a positioning ring for blocking the communicating groove, the positioning ring is provided with a spraying pipe, one end of the spraying pipe penetrates through the positioning ring and is communicated with the containing cavity, and the other end of the spraying pipe is provided with a spraying head. The positioning ring can rotate around the axis of the positioning ring so that the spray head can rotate around the periphery of the vehicle door.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle door painting, and particularly relates to a vehicle door painting device. BACKGROUND

[0002] Painting the vehicle door can improve the weather resistance, wear resistance and corrosion resistance of the vehicle door, thereby prolonging the service life of the vehicle door. Painting the vehicle door can also repair scratches and discoloration on the surface of the vehicle door, restore the original gloss and color of the vehicle door, and improve the overall appearance of the vehicle.

[0003] In the prior art, the vehicle door is first clamped by a clamp, and then the vehicle door is painted by a painting device. When the inner side and the outer side of the vehicle door need to be painted, the clamp is usually controlled to flip over to change the inner and outer sides of the vehicle door facing the painting device, so as to paint the inner and outer sides of the vehicle door respectively. However, when the clamp is driven to flip the vehicle door, the clamp needs to provide sufficient clamping force to the two sides of the vehicle. If the clamping force is too large, the vehicle door is easily damaged. If the clamping force is too small, the clamping is unstable. In addition, when the vehicle door is flipped, the relative position of the vehicle door and the painting device is easily changed, and the position of the painting device needs to be adjusted again. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a vehicle door painting device, which aims to solve the technical problem that in the prior art, when the clamp is driven to flip the vehicle door, the clamp needs to provide sufficient clamping force to the two sides of the vehicle. If the clamping force is too large, the vehicle door is easily damaged. If the clamping force is too small, the clamping is unstable. In addition, when the vehicle door is flipped, the relative position of the vehicle door and the painting device is easily changed, and the position of the painting device needs to be adjusted again.

[0005] To achieve the above-mentioned purpose, the present application provides a vehicle door painting device, comprising:

[0006] A storage part having a through hole, and a containing cavity inside the storage part for containing a painting material;

[0007] A support frame for supporting the storage part, and a clamping assembly on the support frame for clamping a vehicle door to be painted in the through hole;

[0008] The inner wall of the through hole is provided with a communication groove communicating with the containing cavity in the circumferential direction, the storage part is provided with a positioning ring plugging the communication groove, the positioning ring is provided with a spray pipe, one end of the spray pipe penetrates through the positioning ring and communicates with the containing cavity, and the other end of the spray pipe is provided with a spray head, and the positioning ring can rotate around its own axis to enable the spray head to rotate around the periphery of the vehicle door.

[0009] Optionally, at least one transmission assembly is arranged on the support frame, the transmission assembly comprising a screw rod, a first motor, a fixed block and a nut, the screw rod is rotatably arranged on the support frame, the first motor is arranged on the support frame, an output shaft of the first motor is connected with the screw rod, the fixed block is arranged on an outer wall of the storage part, and the nut is rotatably arranged on the fixed block and used for cooperating with the screw rod.

[0010] Optionally, an axis of the screw rod is parallel to an axis of the through hole.

[0011] Optionally, the clamping assembly comprises a hydraulic cylinder, a clamping jaw is arranged on a telescopic shaft of the hydraulic cylinder, the clamping jaw has a clamping groove used for cooperating with the door, a side wall of the clamping groove is throughly provided with a threaded hole, a threaded adjusting rod is throughly arranged in the threaded hole in a threaded manner, and an end of the adjusting rod is matched with a bottom wall of the clamping groove to clamp the door.

[0012] Optionally, an inner gear ring is arranged on a side wall of the positioning ring, a second motor is arranged on an inner wall of the through hole, a driving wheel is sleeved on an output shaft of the second motor, and the driving wheel is engaged with the inner gear ring.

[0013] Optionally, annular first grooves are arranged on two side walls of the positioning ring, second grooves matched with the first grooves are arranged on an inner wall of the communication groove, the first grooves and the second grooves are buckled to form ball grooves, and ball bodies are filled in the ball grooves.

[0014] Optionally, sealing rings are arranged between the outer wall of the positioning ring and the inner wall of the communication groove and located on two sides of the ball grooves respectively.

[0015] Optionally, the spray pipe comprises first and second pipe bodies in communication with each other, one end of the first pipe body penetrates the positioning ring and communicates with the accommodating cavity, the second pipe body is sleeved on the other end of the first pipe body, the spray head is arranged on the second pipe body, a connecting block is arranged on an outer wall of the second pipe body, a telescopic part is arranged on an inner wall of the through hole, and a telescopic end of the telescopic part is connected with the connecting block, so that the second pipe body can move along an axial direction of the first pipe body.

[0016] Optionally, the spray head is detachably connected with the second pipe body.

[0017] Optionally, the storage part is provided with a feeding pipe in communication with the accommodating cavity, and a valve is arranged on the feeding pipe.

[0018] The application can achieve the following beneficial effects:

[0019] The positioning ring can rotate, the spray head is arranged on the positioning ring, and the spray head is in a communication state with the accommodating cavity through the spraying pipe in the process of rotating with the positioning ring, so that the spray head can spray the spraying material in the accommodating cavity through the spray head in any position. The spray head can rotate 360 degrees around the door, can spray the inner side wall, the outer side wall and the transition part of the inner side wall and the outer side wall of the door, can improve the coverage range of the spray head, and can spray the outer wall of the door without turning over the door. Since the door plate does not need to be turned over, the clamping assembly for clamping the door does not need to consider the problems of over-clamping or under-clamping due to the change of gravity center in the turning process of the door plate. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a sectional view structure schematic diagram of the paint spraying device of the embodiment of the application.

[0021] Figure 2 It is a sectional view structure schematic diagram of the paint spraying device of the embodiment of the application. Figure 1 It is an enlarged structure schematic diagram of A in the middle.

[0022] Figure 3 It is a sectional view structure schematic diagram of the paint spraying device of the embodiment of the application. Figure 2 It is a partial structure schematic diagram of the paint spraying device of the embodiment of the application.

[0023] Figure 4 It is a sectional view structure schematic diagram of the paint spraying device of the embodiment of the application.

[0024] In the figure, 10 is a support frame, 20 is a storage part, 21 is a through hole, 22 is an accommodating cavity, 23 is a feeding pipe, 231 is a valve, 30 is a communication groove, 40 is a positioning ring, 41 is an inner gear ring, 42 is a second motor, 43 is a driving wheel, 44 is a ball body, 45 is a sealing ring, 50 is a spraying pipe, 51 is a first pipe body, 52 is a second pipe body, 521 is a connecting block, 522 is an expansion piece, 53 is a spray head, 60 is a transmission assembly, 61 is a first motor, 62 is a screw rod, 63 is a fixed block, 64 is a nut, 70 is a clamping assembly, 71 is a hydraulic cylinder, 72 is a clamping jaw, 73 is a clamping groove, and 74 is an adjusting rod.

[0025] The implementation, functional characteristics and advantages of the application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0027] It should be noted that all the directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0028] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixing", etc. should be understood in a broad sense, for example, "fixing" can be fixed connection, or detachable connection, or integrated; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In addition, if the description of "first", "second", etc. is involved in the embodiments of the present application, the description of "first", "second", etc. is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that ordinary skilled persons in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0030] Embodiment 1

[0031] Referring to Figures 1-4 , the first embodiment of the present application provides a kind of vehicle door paint spraying device, including: storage piece 20 and support frame 10.Storage piece 20 has through hole 21, and storage piece 20 has the accommodating cavity 22 for accommodating spray material inside.The support frame 10 is used to support storage piece 20, and the clamping assembly 70 for clamping the vehicle door to be painted located in through hole 21 is also provided on support frame 10.The inner wall of through hole 21 is provided with the communication groove 30 communicated with accommodating cavity 22 along the circumference, and the positioning ring 40 for plugging the communication groove 30 is provided on storage piece 20, the spray pipe 50 is provided on the positioning ring 40, one end of the spray pipe 50 penetrates the positioning ring 40 and is communicated with the accommodating cavity 22, the other end is provided with spray head 53, and the positioning ring 40 can rotate around its own axis, so that spray head 53 can rotate around the periphery of vehicle door.

[0032] In the embodiment, the storage part 20 is a cylinder with both ends open, the through hole 21 is a middle space of the cylinder, the inside of the storage part 20 is a hollow structure, that is, the inner wall of the accommodation cavity 22 is annular in cross-sectional shape, the accommodation cavity 22 is used to accommodate the spraying material of the spraying vehicle door, and the spraying material can be paint of various colors. The support frame 10 provides support force for the storage part 20. The support frame 10 can enclose a processing space in the middle, and the number of clamping assemblies 70 can be at least one. When the number of clamping assemblies 70 is two, the two clamping assemblies 70 are oppositely arranged on the two inner side walls of the processing space, and clamp the opposite two side walls of the vehicle door, respectively. When the number of clamping assemblies 70 is four, the four clamping assemblies are arranged on the inner side walls in four directions of the processing space, respectively, and clamp the four edges of the vehicle door. When the vehicle door is painted by the spray head 53, the vehicle frame is located in the space inside the through hole 21 of the storage part 20. The inner wall of the through hole 21 is provided with a communication groove 30, the communication groove 30 is annular and penetrates the inner wall of the through hole 21, and the accommodation cavity 22 and the through hole 21 are communicated through the communication groove 30. The storage part 20 is provided with an annular positioning ring 40, the positioning ring 40 is installed in the communication groove 30, the positioning ring 40 can always completely block the communication groove 30, the axis of the positioning ring 40 is collinear with the axis of the through hole 21, and the positioning ring 40 is always in the state of blocking the communication groove 30 in the process of rotation. The spraying material in the accommodation cavity 22 will not overflow into the through hole 21 through the communication groove 30. The spray head 53 is arranged on the positioning ring 40, and the spray head 53 makes circular motion around the vehicle door in the process of rotation of the positioning ring 40, and the spray head 53 can spray the axial outer wall of the vehicle door.

[0033] Embodiment 2

[0034] As an optional implementation, referring to Figure 1 and Figure 4 , the embodiment provides a specific structure for driving the storage part 20 to move, comprising: at least one transmission assembly 60 is arranged on the support frame 10, the transmission assembly 60 comprises a lead screw 62, a first motor 61, a fixed block 63 and a nut 64, the lead screw 62 is rotatably arranged on the support frame 10, the first motor 61 is arranged on the support frame 10, the output shaft of the first motor 61 is connected with the lead screw 62, the fixed block 63 is arranged on the outer wall of the storage part 20, and the nut 64 is rotatably arranged on the fixed block 63, and the nut 64 is used to cooperate with the lead screw 62.

[0035] Optionally, the axis of the lead screw 62 is parallel to the axis of the through hole 21.

[0036] In the embodiment, four transmission assemblies 60 can be arranged on the support frame 10, and the four transmission assemblies 60 are arranged in four directions of up, down, left and right of the storage part 20 respectively. The first motor 61 can be a servo motor, the first motor 61 is installed on the support frame 10, the output shaft of the first motor 61 is connected with the screw rod 62 through a shaft coupling, and the nut 64 is rotatably arranged on the fixed block 63, and the fixed block 63 has a mounting hole for mounting the nut 64. The fixed block 63 is driven to move transversely through the rotation of the screw rod 62, and then the transverse movement of the storage part 20 is realized, so that the nozzle 53 can move transversely, the area covered by the nozzle 53 is expanded, and the nozzle 53 can spray the inner side wall and the outer side wall surface of the door along the transverse direction. The axis of the screw rod 62 is parallel to the axis of the through hole 21, so that when the door plate is located in the through hole 21, the storage part 20 moves transversely, and the interference between the inner wall of the storage part 20 and the door plate is reduced. Further, a guide rod can be arranged on the support frame 10, and a guide block is arranged on the outer wall of the storage part 20, the guide block has a guide hole for the guide rod to pass through, and the guide rod and the guide block cooperate to support and guide the storage part 20.

[0037] Embodiment 3

[0038] As an optional implementation, referring to Figure 1 , the embodiment provides a specific structure of the clamping assembly 70, which comprises a hydraulic cylinder 71, and a clamping jaw 72 is arranged on the telescopic shaft of the hydraulic cylinder 71, the clamping jaw 72 has a clamping groove 73 for cooperating with the door, one side wall of the clamping groove 73 is provided with a threaded hole, the threaded hole is provided with an adjusting rod 74 which is screwed, and the end of the adjusting rod 74 is matched with the bottom wall of the clamping groove 73 to clamp the door.

[0039] In the embodiment, the telescopic shaft of the hydraulic cylinder 71 is telescopic, which can control the transverse movement of the door plate, or the telescopic shafts of the two hydraulic cylinders 71 on the opposite sides are telescopic, which can adapt to door plates of different widths, so as to clamp the door plate. During clamping, first, the edge of the door plate is placed in the clamping groove 73, then the adjusting rod 74 moves downward, the lower end of the adjusting rod 74 abuts against the upper end surface of the door, and the lower end surface of the adjusting rod 74 is matched with the bottom wall of the clamping groove 73 to clamp and fix the door. A flexible pad can be arranged at the lower end of the adjusting rod 74, which avoids the rigid contact between the adjusting rod 74 and the door and damages the door.

[0040] Embodiment 4

[0041] As an optional implementation, referring to Figure 1 and Figure 2The embodiment provides a body structure for driving the rotation of the positioning ring 40, which comprises that an inner gear ring 41 is arranged on the side wall of the positioning ring 40, a second motor 42 is arranged on the inner wall of the through hole 21, a driving wheel 43 is sleeved on the output shaft of the second motor 42, and the driving wheel 43 is engaged with the inner gear ring 41.

[0042] In the embodiment, the second motor 42 is mounted on the inner wall of the through hole 21, and the position of the second motor 42 is fixed. By arranging the second motor 42, the inner gear ring 41 and the driving wheel 43, the rotation angle and the rotation speed of the positioning ring 40 can be automatically and accurately controlled, and the spraying quality of the nozzle 53 is improved.

[0043] Embodiment 5

[0044] As an optional implementation, referring to Figure 1 and Figure 2 The embodiment provides a mounting structure of the positioning ring 40, which comprises that first recesses in annular shapes are arranged on the two side walls of the positioning ring 40, second recesses matched with the first recesses are arranged on the inner wall of the communication groove 30, the first recesses and the second recesses are buckled to form ball grooves, and ball bodies 44 are filled in the ball grooves.

[0045] Optionally, sealing rings 45 are arranged between the outer wall of the positioning ring 40 and the inner wall of the communication groove 30 and located on the two sides of the ball grooves respectively.

[0046] In the embodiment, the ball grooves are arranged between the positioning ring 40 and the inner wall of the communication groove 30, and the ball bodies 44 are filled in the ball grooves. The positioning ring 40 can be smoothly rotated through the ball bodies 44, and the positioning ring 40 is always located in the communication groove 30. The ball bodies 44 are mounted in the first mounting grooves communicated with the first recesses on the positioning ring 40, the ball bodies 44 enter the ball grooves through the first recesses from the first mounting grooves, fixing bolts are arranged at the groove openings of the first mounting grooves, the ball bodies 44 are limited through the fixing bolts, when the ball bodies 44 need to be dismounted, the fixing bolts are removed to open the first mounting grooves, and then the ball bodies 44 are removed from the first mounting grooves. The sealing rings 45 are arranged on the two sides of the ball grooves respectively, the gap between the positioning ring 40 and the communication groove 30 is sealed, and the spraying material in the containing cavity 22 is prevented from leaking through the gap between the positioning ring 40 and the communication groove 30.

[0047] Embodiment 6

[0048] As an optional implementation, referring to Figures 1-4The embodiment provides a specific structure of a spraying pipe 50, which comprises a first pipe body 51 and a second pipe body 52 in communication with each other, one end of the first pipe body 51 is in communication with the accommodating cavity 22 through the positioning ring 40, the second pipe body 52 is sleeved on the other end of the first pipe body 51, a spraying head 53 is arranged on the second pipe body 52, the outer wall of the second pipe body 52 is provided with a connecting block 521, the inner wall of the through hole 21 is provided with an expansion piece 522, and the expansion end of the expansion piece 522 is connected with the connecting block 521, so that the second pipe body 52 can move along the axial direction of the first pipe body 51.

[0049] Optionally, the spraying head 53 is detachably connected with the second pipe body 52.

[0050] Optionally, the storage member 20 is provided with a feeding pipe 23 in communication with the accommodating cavity 22, and the feeding pipe 23 is provided with a valve 231.

[0051] In the embodiment, the expansion piece 522 can be one of an oil cylinder, an air cylinder and an electric push rod. By arranging the first pipe body 51 and the second pipe body 52, the expansion piece 522 controls the second pipe body 52 to move relative to the first pipe body 51, so that the spraying head 53 on the second pipe body 52 can be relative to the distance between the doors, so that the position of the spraying head 53 can be adjusted according to actual spraying requirements, and the spraying quality is improved. The spraying head 53 is threadedly connected with the second pipe body 52, different specifications of the spraying head 53 can be replaced according to spraying requirements, and the spraying head 53 can be an atomizing spraying head 53. The feeding pipe 23 is arranged on the storage member 20, a pressurizing pump can be arranged on the feeding pipe 23, the first pipe body 51, the second pipe body 52 or the spraying head 53, so that the spraying material can be sprayed from the spraying head 53 with certain kinetic energy.

[0052] The above are only the preferred embodiments of the application, and do not limit the patent scope of the application, and any equivalent structure or equivalent process transformation obtained by using the content of the specification and the drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the application.

Claims

1. A vehicle door painting device characterized by comprising: The application relates to a paint spraying device for a vehicle door, which comprises the following parts: a storage part with a through hole, the storage part internally having a containing cavity for containing spraying material; a supporting frame for supporting the storage part, the supporting frame further having a clamping assembly for clamping a vehicle door to be painted in the through hole; wherein the inner wall of the through hole is circumferentially provided with a communication groove communicating with the containing cavity, the storage part is provided with a positioning ring for sealing the communication groove, the positioning ring is provided with a spraying pipe, one end of the spraying pipe penetrates through the positioning ring and communicates with the containing cavity, the other end of the spraying pipe is provided with a nozzle, and the positioning ring can rotate around its own axis so that the nozzle can rotate around the periphery of the vehicle door.

2. The vehicle door paint spraying apparatus as set forth in claim 1, wherein The supporting frame is provided with at least one transmission assembly, the transmission assembly comprises a screw rod, a first motor, a fixed block and a nut, the screw rod is rotatably arranged on the supporting frame, the first motor is arranged on the supporting frame, the output shaft of the first motor is connected with the screw rod, the fixed block is arranged on the outer wall of the storage part, and the nut is rotatably arranged on the fixed block and used for cooperating with the screw rod.

3. The vehicle door paint spraying apparatus of claim 2, wherein The axis of the screw rod is parallel to the axis of the through hole.

4. The vehicle door painting apparatus as defined in claim 1, wherein The clamping assembly comprises a hydraulic cylinder, the telescopic shaft of the hydraulic cylinder is provided with a clamping jaw, the clamping jaw has a clamping groove for cooperating with the vehicle door, one side wall of the clamping groove is provided with a threaded hole penetrating through the clamping groove, the threaded hole is provided with a threaded adjusting rod penetrating through the threaded hole, and the end of the adjusting rod is matched with the bottom wall of the clamping groove to clamp the vehicle door.

5. The vehicle door painting apparatus as defined in claim 1, wherein The side wall of the positioning ring is provided with an inner ring gear, the inner wall of the through hole is provided with a second motor, the output shaft of the second motor is sleeved with a driving wheel, and the driving wheel is meshed with the inner ring gear.

6. The vehicle door painting apparatus as defined in claim 1, wherein The two side walls of the positioning ring are provided with annular first grooves, the inner wall of the communication groove is provided with second grooves matched with the first grooves, the first grooves and the second grooves are buckled to form ball grooves, and the ball grooves are filled with ball bodies.

7. The vehicle door painting apparatus as defined in claim 6, wherein Sealing rings are arranged between the outer wall of the positioning ring and the inner wall of the communication groove and located on the two sides of the ball grooves respectively.

8. The vehicle door painting apparatus as defined in claim 1, wherein The spraying pipe comprises a first pipe body and a second pipe body which are communicated with each other, one end of the first pipe body penetrates through the positioning ring and communicates with the containing cavity, the second pipe body is sleeved on the other end of the first pipe body, the nozzle is arranged on the second pipe body, the outer wall of the second pipe body is provided with a connecting block, the inner wall of the through hole is provided with a telescopic part, and the telescopic end of the telescopic part is connected with the connecting block so that the second pipe body can move along the axial direction of the first pipe body.

9. The vehicle door painting apparatus as defined in claim 8, wherein The nozzle is detachably connected with the second pipe body.

10. The vehicle door painting apparatus as defined in claim 1, wherein The storage part is provided with a feeding pipe communicated with the containing cavity, and the feeding pipe is provided with a valve.

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