An intelligent robot paint spraying production line for engine assembly

Abstract

The present application belongs to the technical field of paint spraying equipment, and particularly relates to an engine assembly intelligent robot paint spraying production line. The engine assembly intelligent robot paint spraying production line is provided, which can be used in the following manner: a motor, a driving gear, a support ring unit, a heating rotary ring unit, a rotary rod unit, a vertical rotary hole plate unit and a nozzle hose unit are arranged on a paint spraying equipment bottom plate, so that: 1. the nozzle hose unit can be pulled and inserted on the vertical rotary hole plate unit to adjust the protruding amplitude of the arc-shaped curved lower end, thereby adjusting the pitch angle of the paint spraying operation; and 2. the heating rotary ring unit can heat the nozzle hose unit and can also clasp the nozzle hose unit in a ring shape, so that the nozzle hose unit can rotate in a ring shape and can also be fixedly used after the required angle is adjusted in a ring shape.

Description

Technical Field

[0001] This invention belongs to the field of painting equipment technology, and in particular relates to an intelligent robot painting production line for engine assemblies. Background Technology

[0002] The engine assembly includes the cylinder block, flywheel cover, and transmission. The primary purpose of painting the engine assembly is to protect and enhance its appearance. Generally, the painting process involves three steps: primer application, topcoat application, and protective coating application. The paints used for engine assembly painting are various quick-drying or self-drying paints, such as chlorinated aluminum powder paint and epoxy aluminum powder paint.

[0003] On the other hand, the painting equipment used in the above painting process generally needs to have at least the following two functional characteristics: First, it can be rotated horizontally for adjustment, ensuring comprehensive painting operations; Secondly, the tilt angle can be adjusted, which also ensures a comprehensive painting operation.

[0004] Furthermore, in the automotive manufacturing sector, the aforementioned mechanical structures with lateral rotation and pitch adjustment capabilities are generally referred to as intelligent robotic arms or intelligent robots. Automotive production lines not only employ intelligent painting robots, but also intelligent welding robots, intelligent cutting robots, and intelligent packaging robots, among others.

[0005] Existing intelligent painting robots include, for example, a smart powder coating and painting combined robotic arm as described in Chinese utility model patent CN217830414U, published on November 18, 2022. Its structure includes a robotic arm comprising a base, screw holes, rubber pads, a rotating shaft, a rotary table, a motor, a hydraulic push rod, a support plate, a powder coating box, a motor, a stirring shaft, stirring blades, a fan, a powder coating pipe, a powder coating hole, a powder inlet door, a paint box, a paint pump, a paint coating pipe, a paint inlet pipe, and a sealing cap. The base has screw holes inside, rubber pads are installed at the bottom of the base, the rotating shaft is installed at the top of the base, the rotary table is installed on the side of the rotating shaft, the motor is installed at the top of the rotary table, the hydraulic push rod is installed at the top of the motor, the support plate is installed at the top of the hydraulic push rod, and the powder coating box is installed at the top of the support plate.

[0006] The robotic arm in this utility model patent has the following structure, principle and advantages: By installing a transmission device at the top of the base, the robotic arm can adjust its height and angle, making it more convenient and efficient to use.

[0007] However, in actual use, this robotic arm still has at least two shortcomings, which are also the technical problems that this invention aims to solve: First, the robotic arm cannot adjust its pitch angle, which greatly reduces the quality of the painting operation; Secondly, the robotic arm lacks a pre-spray heating function for the paint, which cannot guarantee that the paint can be smoothly discharged and cured quickly.

[0008] Therefore, in summary, there is an urgent need for a new type of painting equipment that can both adjust the pitch angle of the painting operation and heat the paint before it is sprayed, so that it can be used on the production line of engine assembly. Summary of the Invention

[0009] This invention provides an intelligent robotic painting production line for engine assemblies. By assembling a motor, drive gear, support ring unit, heating rotating ring unit, rotating rod unit, vertical rotating perforated plate unit, and nozzle hose unit on the base plate of the painting equipment, the following features are achieved: 1. The nozzle hose unit, located on the vertical rotating perforated plate unit, allows for adjustment of the protrusion of its curved lower end, thereby adjusting the pitch angle of the painting operation; 2. The heating rotating ring unit can both heat the nozzle hose unit and circumferentially engage it, ensuring circumferential rotation or allowing for circumferential adjustment to the desired angle before fixing it in place.

[0010] The technical solution adopted by the present invention to solve the above problems is: an intelligent robot painting production line for engine assembly, the structure of which includes a painting equipment base plate, a motor, and a drive gear, and also includes a support ring unit disposed on the painting equipment base plate, a heating rotating ring unit sleeved on the support ring unit, a rotating rod unit inserted on the support ring unit, a vertical rotating perforated plate unit hinged on the rotating rod unit, and a nozzle hose unit inserted on the vertical rotating perforated plate unit and used for vertical support and circumferential engagement on the heating rotating ring unit.

[0011] A further preferred technical solution is that the support ring unit includes a cylinder disposed on the base plate of the painting equipment, a support ring disposed on the annular surface of the cylinder and used to install the heating rotating ring unit, and a circular groove disposed on the upper end surface of the cylinder and used to insert the rotating rod unit.

[0012] A further preferred technical solution is that the heating rotating ring unit includes a driven gear whose lower surface is disposed on the supporting ring and sleeved with the cylinder, an open support disk disposed on the upper surface of the driven gear and sleeved with the cylinder, and a heating protrusion disposed on the upper surface of the open support disk and used for circumferentially engaging the nozzle hose unit.

[0013] A further preferred technical solution is that an electric heating wire is provided inside the perforated support disc and the heating protrusion.

[0014] A further preferred technical solution is that: the number of nozzle hose units is 3, and the upper surface of the heating protrusion is also provided with a supplementary heating groove for engaging the nozzle hose unit.

[0015] A further preferred technical solution is that the rotating rod unit includes a round rod inserted into the circular groove, and a radial shaft disposed on the round rod and used to hinge the vertical rotating perforated plate unit.

[0016] A further preferred technical solution is that the vertical rotating orifice plate unit includes a hinged orifice plate disposed on the radial axis, a paint pipe mounting plate disposed on the hinged orifice plate, and a pair of vertical mounting holes disposed on the paint pipe mounting plate for bending the nozzle hose unit.

[0017] A further preferred technical solution is that the vertical rotating orifice plate unit further includes elastic strips fixed on the upper surface of the paint spray pipe mounting plate and used to press down and fix the two ends of the nozzle hose unit.

[0018] A further preferred technical solution is that the nozzle hose unit includes a pitch angle adjusting hose that is inserted into the vertical mounting hole and whose arc-shaped lower end presses against the perforated support disc and is used to circumferentially engage the heating protrusion, and a nozzle disposed on the pitch angle adjusting hose.

[0019] A further preferred technical solution is that the number of nozzle hose units is 3, and the centrally located pitch angle adjustment hose is engaged on the supplementary heating tank. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a schematic diagram illustrating the horizontal spraying method of the nozzle hose unit in this invention.

[0022] Figure 3 This is a schematic diagram of the painting method in which the nozzle hose unit is raised upwards in this invention.

[0023] Figure 4 This is a top-down view of the vertical rotating perforated plate unit in this invention.

[0024] Figure 5 This is a schematic diagram of the heating rotating ring unit in this invention.

[0025] Figure 6 This is a top-down view showing the position of the heating protrusion in this invention.

[0026] Figure 7This is a schematic diagram of the position and structure of the support ring unit in this invention.

[0027] Figure 8 This is a top-down view showing the position and shape of the supporting ring in this invention.

[0028] The meanings of the markings in the diagram are as follows: 11. Base plate of the spray painting equipment; 12. Motor; 13. Drive gear; Support ring unit 1, heating rotating ring unit 2, rotating rod unit 3, vertical rotating orifice plate unit 4, nozzle hose unit 5; 101 cylinder, 102 supporting ring, 103 circular groove, 201 driven gear, 202 perforated supporting disc, 203 heating protrusion, 204 electric heating wire, 205 supplementary heating groove, 301 round rod, 302 radial shaft, 401 hinged hole plate, 402 paint spray pipe mounting plate, 403 vertical mounting hole, 404 elastic strips fixed at both ends, 501 pitch angle adjusting hose, 502 nozzle. Detailed Implementation

[0029] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

[0030] As attached Figure 1-8 As shown, an intelligent robot painting production line for engine assembly includes a painting equipment base plate 11, a motor 12, and a drive gear 13. It also includes a support ring unit 1 mounted on the painting equipment base plate 11, a heating rotating ring unit 2 sleeved on the support ring unit 1, a rotating rod unit 3 inserted on the support ring unit 1, a vertical rotating perforated plate unit 4 hinged on the rotating rod unit 3, and a nozzle hose unit 5 inserted on the vertical rotating perforated plate unit 4 for vertical support and circumferential engagement with the heating rotating ring unit 2.

[0031] In this embodiment, the motor 12 is a servo motor, ensuring that when it is not powered on, neither it nor the heating rotating ring unit 2 can rotate, thus providing the vertical rotating perforated plate unit 4 with the function of rotating laterally to the required angle and then fixing it for use.

[0032] Furthermore, the hose of the nozzle hose unit 5 is made of PVC steel wire tubing. Its "softness" refers to its flexibility, not a lack of support strength, and the tube itself is not easily collapsed. Therefore, the longer the curved section of the hose below the vertical rotating orifice plate unit 4, the greater the upward angle that the nozzle hose unit 5 can achieve; conversely, the nozzle hose unit 5 will spray paint at an angle downwards.

[0033] Furthermore, the base plate 11 of the painting equipment is provided with mounting holes, and the entire painting equipment can be installed on the gantry column or on the column next to the engine assembly conveyor line.

[0034] Finally, when the painting equipment is in use, the motor 12 and the heating rotating ring unit 2 need to be powered on, and the nozzle hose unit 5 needs to be connected to an external paint pump.

[0035] The support ring unit 1 includes a cylinder 101 disposed on the base plate 11 of the spray painting equipment, a support ring 102 disposed on the annular surface of the cylinder 101 and used to install the heating rotating ring unit 2, and a circular groove 103 disposed on the upper end surface of the cylinder 101 and used to insert the rotating rod unit 3.

[0036] In this embodiment, the supporting ring 102 may be an incomplete open ring, as shown in the attached figure. Figure 8 As shown, it is possible to get close to the cylinder 101 and the motor 12, making the structure of the painting equipment more compact.

[0037] In addition, lubricating oil or ball bearings can be provided on the upper surface of the support ring 102 to ensure that the heating rotating ring unit 2 rotates with relatively little effort.

[0038] The heating rotating ring unit 2 includes a driven gear 201 whose lower surface is disposed on the supporting ring 102 and sleeved with the cylinder 101, an open support disk 202 disposed on the upper surface of the driven gear 201 and sleeved with the cylinder 101, and a heating protrusion 203 disposed on the upper surface of the open support disk 202 and used for circumferentially engaging the nozzle hose unit 5.

[0039] In this embodiment, the nozzle hose unit 5 can lift the vertical rotating orifice plate unit 4 on the upper surface of the perforated support disk 202, thereby obtaining the required pitch angle.

[0040] Furthermore, the nozzle hose unit 5 can also selectively engage with the heating protrusion 203, such that: First, when the heating rotating ring unit 2 is driven by the motor 12, the vertical rotating orifice plate unit 4 and the nozzle hose unit 5 can rotate and spray paint together. Secondly, when the motor 12 is not powered on, the vertical rotating orifice plate unit 4 and the nozzle hose unit 5 can be manually rotated to the required orientation angle and can be circumferentially engaged on one of the heating protrusions 203 to prevent the nozzle hose unit 5 from rotating accidentally again.

[0041] The perforated support disc 202 and the heating protrusion 203 are equipped with an electric heating wire 204.

[0042] In this embodiment, the connecting wire on the electric heating wire 204 needs to be reserved for a certain length because the heating rotating ring unit 2 may rotate back and forth to spray paint.

[0043] The number of nozzle hose units 5 is 3, and the upper surface of the heating protrusion 203 is also provided with a supplementary heating groove 205 for engaging the nozzle hose unit 5.

[0044] In this embodiment, the nozzle hose unit 5 can lock the two sides of the heating protrusion 203 to achieve a circumferential relative fixation effect between the heating rotating ring unit 2 and the vertical rotating orifice plate unit 4.

[0045] The second method is that the nozzle hose unit 5 can also be inserted into the supplementary heating groove 205. In this case, the vertical rotating orifice plate unit 4 can still be pushed upward and can still be circumferentially fixed with the heating rotating ring unit 2.

[0046] The “stuck, inserted” parts mentioned above are the lower curved sections of the nozzle hose unit 5. The protruding length of this curved section below the vertical rotating orifice plate unit 4 is adjustable, and the PVC steel wire tube can be inserted or removed appropriately.

[0047] The rotating rod unit 3 includes a round rod 301 inserted into the circular groove 103, and a radial shaft 302 disposed on the round rod 301 and used to hinge the vertical rotating perforated plate unit 4.

[0048] In this embodiment, when the vertical rotating perforated plate unit 4 reciprocates and swings to spray paint along with the heating rotating ring unit 2, the round rod 301 remains relatively stationary within the circular groove 103.

[0049] The hinged connection at the radial axis 302 allows the nozzle hose unit 5 to adjust the pitch angle of the painting action.

[0050] The rotatable relationship at the round rod 301 allows the nozzle hose unit 5 to be rotated laterally to the desired orientation, and then sprayed with paint at a fixed angle.

[0051] The vertical rotating perforated plate unit 4 includes a hinged perforated plate 401 disposed on the radial shaft 302, a paint spray tube mounting plate 402 disposed on the hinged perforated plate 401, and vertical mounting holes 403 disposed in pairs on the paint spray tube mounting plate 402 for bending the nozzle hose unit 5.

[0052] In this embodiment, the diameter of the vertical mounting hole 403 is slightly larger than the outer diameter of the nozzle hose unit 5, and the distance between the two pairs of vertical mounting holes 403 is also relatively large, to prevent the hose from being unable to bend.

[0053] The vertical rotating perforated plate unit 4 also includes elastic strips 404 fixed on both ends of the nozzle hose unit 5, which are disposed on the upper surface of the paint spray pipe mounting plate 402 and used to press down and fix the nozzle hose unit 5.

[0054] In this embodiment, the elastic strips 404 fixed at both ends are rubber strips bonded at both ends, used to press down all the nozzle hose units 5.

[0055] The nozzle hose unit 5 includes a pitch angle adjusting hose 501 that is inserted into the vertical mounting hole 403 and whose arc-shaped lower end presses against the perforated support disc 202 and is used to circumferentially engage the heating protrusion 203, and a nozzle 502 disposed on the pitch angle adjusting hose 501.

[0056] In this embodiment, after the pitch angle adjusting hose 501 is pulled downwards appropriately through the two vertical mounting holes 403, it can relatively and significantly lift the paint spray pipe mounting plate 402, that is, the nozzle 502 can tilt upwards to spray paint.

[0057] Conversely, if the curved end of the pitch angle adjusting hose 501 is close enough to the paint spray pipe mounting plate 402, the effective support length of the pitch angle adjusting hose 501 is very short, and the nozzle 502 can tilt downwards to spray paint.

[0058] In addition, the non-connected end of the pitch angle adjusting hose 501 to the nozzle 502 is used to connect to an external paint pump.

[0059] There are three nozzle hose units 5, with the pitch angle adjustment hose 501 in the center being engaged with the supplementary heating tank 205.

[0060] In this embodiment, the three nozzle hose units 5 correspond to the primer, topcoat, and protective paint, respectively.

[0061] Generally, when the engine assembly passes in front of the nozzle 502, one of the nozzle hose units 5 is opened, and only one painting operation is performed.

[0062] However, each of the three nozzle hose units 5 is connected to its corresponding paint tank, so that the nozzle hose unit 5 corresponding to the topcoat or protective paint can be opened during the next painting operation.

[0063] Correspondingly, the three pitch angle adjustment hoses 501 can more fully engage the heating protrusions 203, and each heating protrusion 203 can obtain sufficient heating effect from the heating wire, ensuring smooth paint spraying and rapid curing.

[0064] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the spirit of the present invention. These are non-inventive modifications and are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. An intelligent robot painting production line for engine assemblies, comprising a painting equipment base plate (11), a motor (12), and a drive gear (13), characterized in that: It also includes a support ring unit (1) disposed on the base plate (11) of the painting equipment, a heating rotating ring unit (2) sleeved on the support ring unit (1), a rotating rod unit (3) inserted on the support ring unit (1), a vertical rotating orifice plate unit (4) hinged on the rotating rod unit (3), and a nozzle hose unit (5) inserted on the vertical rotating orifice plate unit (4) and used for vertical support and circumferential engagement on the heating rotating ring unit (2). The support ring unit (1) includes a cylinder (101) disposed on the base plate (11) of the spray painting equipment, a support ring (102) disposed on the annular surface of the cylinder (101) and used to install the heating rotating ring unit (2), and a circular groove (103) disposed on the upper end surface of the cylinder (101) and used to insert the rotating rod unit (3). The heating rotating ring unit (2) includes a driven gear (201) whose lower surface is disposed on the support ring (102) and sleeved with the cylinder (101), an open support disk (202) disposed on the upper surface of the driven gear (201) and sleeved with the cylinder (101), and a heating protrusion (203) disposed on the upper surface of the open support disk (202) and used for circumferentially engaging the nozzle hose unit (5). The number of nozzle hose units (5) is 3, and the upper surface of the heating protrusion (203) is also provided with a supplementary heating groove (205) for engaging the nozzle hose unit (5). The rotating rod unit (3) includes a round rod (301) inserted into the circular groove (103) and a radial shaft (302) disposed on the round rod (301) and used to hinge the vertical rotating perforated plate unit (4). The vertical rotating perforated plate unit (4) includes a hinged perforated plate (401) disposed on the radial axis (302), a paint spray tube mounting plate (402) disposed on the hinged perforated plate (401), and vertical mounting holes (403) disposed in pairs on the paint spray tube mounting plate (402) for bending the nozzle hose unit (5). The nozzle hose unit (5) includes a pitch angle adjusting hose (501) that is inserted into the vertical mounting hole (403), with its arc-shaped lower end pressed against the perforated support disc (202), and used to circumferentially engage the heating protrusion (203), and a nozzle (502) disposed on the pitch angle adjusting hose (501). The number of nozzle hose units (5) is 3, and the central pitch angle adjustment hose (501) is engaged with the supplementary heating tank (205). The nozzle hose unit (5) is located on the vertical rotating orifice plate unit (4). The protrusion of the lower end of the arc-shaped bend of the pitch angle adjusting hose (501) can be adjusted by inserting and removing the hose, thereby adjusting the pitch angle of the painting operation. The heating rotating ring unit (2) can both heat the nozzle hose unit (5) and engage the nozzle hose unit (5) in a circumferential manner. The pitch angle adjusting hose (501) is a PVC steel wire hose. The three pitch angle adjustment hoses (501) correspond to the primer, topcoat, and protective paint, respectively.

2. The intelligent robot painting production line for engine assemblies according to claim 1, characterized in that: The perforated support disc (202) and heating protrusion (203) are equipped with electric heating wires (204).

3. The intelligent robot painting production line for engine assemblies according to claim 1, characterized in that: The vertical rotating perforated plate unit (4) also includes elastic strips (404) fixed at both ends of the spray pipe mounting plate (402) and used to press down and fix the nozzle hose unit (5).

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