Suspension type spraying device and spraying method for automobile parts

Abstract

The present invention relates to a suspended spraying device and a spraying method for automobile accessories. The device includes a suspension frame, an electromagnetic adsorption frame and a spraying assembly. A hook is provided on the suspension frame for horizontal rotation connection, a clamping positioning piece is provided inside the hook body of the hook, a first electromagnet and a material sensing unit are provided on the electromagnetic adsorption frame, and a rotating assembly for driving the hook to rotate horizontally is also provided on the suspension frame. The first electromagnet, the spraying assembly and the rotating assembly are all triggered by a signal from the material sensing unit to operate according to a set program. The automobile hardware accessories are adsorbed and pulled by the magnetic force of the first electromagnet, and the deformation clamping and positioning of the clamping positioning piece are combined to ensure that the automobile hardware accessories are sufficiently stable during painting. In addition, the design of one-side magnetic attraction and the other side rotation does not require the spraying assembly to be relocated to the other side for processing, so the entire outer surface of the automobile hardware accessories can be processed, which can effectively improve space utilization. The application also has the characteristics of a high degree of automation.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts spraying, and more particularly to a suspension type spraying device and a spraying method for automobile parts. Background Art

[0002] During the production and processing of automotive hardware accessories, surface spraying is usually required. Among the various existing spraying methods, hanging spraying is the most commonly used one.

[0003] The currently used hanging spraying of automobile hardware accessories often encounters two problems. The first is that the airflow generated by the spraying will cause the accessories to shake significantly during spraying, affecting the uniformity of the spraying. The second is that after spraying one side of the surface, the spray gun needs to be moved to the other side for spraying, which requires a large space and is inconvenient to operate. There are some devices that use a clamping method to fix the workpiece. The clamping structure will increase the difficulty of control and will block part of the workpiece. In addition, due to the dimensional tolerance of the workpiece, it is easy to cause damage or deformation of the workpiece during clamping. There is a need for a hanging spraying device for automobile accessories that can well solve the above problems. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a hanging type spraying device for automobile parts and a hanging type spraying method for automobile parts in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A hanging spraying device for automobile accessories is constructed, which includes a hanging frame for hanging automobile hardware accessories, an electromagnetic adsorption frame located directly below the hanging frame for adsorbing automobile hardware accessories, and a spraying assembly located on one side of the hanging frame; a hook is provided on the hanging frame for horizontal rotation connection, a V-shaped elastically foldable clamping and positioning piece is provided inside the hook body of the hook, two sliding seats corresponding to the two sides of the clamping and positioning piece are provided inside the hook body of the hook, a slip ring is provided on the sliding seat, and sliding bars passing through the corresponding slip rings are provided on both sides of the clamping and positioning piece; the lower end of the clamping and positioning piece is opposite to the lowest point of the inner bottom of the hook body of the hook and there is a gap; the electromagnetic adsorption frame is provided with a first electromagnet facing the hook and a material sensing unit for sensing whether there are automobile hardware accessories on the hook, and the hanging frame is also provided with a rotating assembly for driving the hook to rotate horizontally, and the first electromagnet, the spraying assembly and the rotating assembly are all triggered by the signal of the material sensing unit to operate according to the set program.

[0007] The suspended spraying device for automobile parts described in the present invention, wherein the electromagnetic adsorption frame includes a base plate, on which a longitudinal slide rail corresponding to the sliding connection of the first electromagnet and a bracket located on the side of the longitudinal slide rail are provided; the material sensing unit includes an infrared counter-radiation sensor, a tension sensor and a processor unit arranged on the bracket; the tension sensor is arranged directly below the first electromagnet and the sensing end of the tension sensor is connected to the bottom surface of the first electromagnet through an elastic part; when the infrared counter-radiation sensor senses an object, it sends a signal to the processor unit, the processor unit starts the first electromagnet and monitors the reading of the tension sensor, and sends a start signal to the spray assembly and the rotating assembly when the reading is not zero.

[0008] The automobile accessory hanging spraying device of the present invention is characterized in that the bracket includes a first vertical pole and a second vertical pole.

[0009] The suspended spraying device for automobile parts described in the present invention is characterized in that a circular arc track located between the first vertical pole and the second vertical pole is fixedly provided on the base plate, and a mounting plate and a driving unit for driving the mounting plate to perform circular motion along the circular arc track are slidably provided on the circular arc track; the longitudinal track and the tension sensor are provided on the mounting plate; a ball head seat is fixedly provided on the suspension frame, and the ball head seat includes a seat body and a ball head, and the ball head is connected to the rotating assembly; a second electromagnet for adsorbing and fixing the position of the ball head is provided on the seat body.

[0010] In the automobile parts suspension spraying device described in the present invention, the longitudinal slide rail and the bracket form a unit and the unit is linearly distributed at multiple locations on the base plate; the hook is linearly distributed at multiple locations on the suspension frame.

[0011] The automobile parts hanging spraying device described in the present invention further includes an auxiliary clamping part that cooperates with the hook, and the auxiliary clamping part includes a hanging plate with a hanging hole that cooperates with the hook. The lower end of the hanging plate is provided with a U-shaped seat with a downward opening, and a tightening screw is threaded through one side arm of the U-shaped seat, and a protective gasket is provided at the front end of the tightening screw.

[0012] The automobile parts suspension spraying device of the present invention, wherein the spraying assembly includes a mounting seat, and the mounting seat is provided with a paint spraying unit and a lifting unit for driving the paint spraying unit to move up and down.

[0013] A method for hanging spraying of automobile parts is applied to the above-mentioned hanging spraying device for automobile parts, and comprises the following steps:

[0014] Hang the automobile hardware accessories on the hooks on the suspension rack and roughly position them by clamping the positioning pieces;

[0015] After the material sensing unit senses the automobile hardware accessories on the hook, it sends a signal to trigger the first electromagnet to operate and magnetically adsorb the automobile hardware accessories;

[0016] The tension on the automobile hardware accessories will exert a force on the clamping positioning piece, causing the two sides of the clamping positioning piece to fold towards the middle and clamp the automobile hardware accessories;

[0017] The material sensing unit sends a signal to delay the triggering of the spraying component to run, and the spraying component sprays according to the set spraying program; at the same time, the material sensing unit sends a signal to trigger the rotation component to run, and the rotation component controls the rotation of the hook according to the set rotation program;

[0018] After spraying is completed, the spraying assembly stops spraying, the rotating assembly drives the hook to reset, the first electromagnet is powered off to release the magnetic adsorption force on the automobile hardware accessories, and the clamping positioning piece recovers its deformation to release the clamping of the automobile hardware accessories.

[0019] The beneficial effects of the present invention are as follows: automobile hardware accessories are hung on the hooks on the hanging frame, and are roughly positioned by means of the clamping positioning piece; after the material sensing unit senses the automobile hardware accessories on the hooks, it sends a signal to trigger the first electromagnet to operate, thereby magnetically adsorbing the automobile hardware accessories; the automobile hardware accessories are subjected to tension, which applies a force to the clamping positioning piece, causing the two sides of the clamping positioning piece to fold toward the middle, thereby clamping the automobile hardware accessories; the material sensing unit sends a signal delay to trigger the spraying component to operate, and the spraying component performs the spraying action according to the set spraying program; at the same time, the material sensing unit sends a signal to trigger the rotation component to operate, and the rotation component controls the rotation according to the set rotation program The hook body rotates; after spraying is completed, the spraying component stops spraying, the rotating component drives the hook to reset, the first electromagnet is powered off to release the magnetic adsorption force on the automobile hardware accessories, and the clamping positioning piece recovers its deformation to release the clamping of the automobile hardware accessories; using the method of this application, the automobile hardware accessories are adsorbed and pulled by the magnetic force of the first electromagnet, and at the same time, the deformation clamping and positioning of the clamping positioning piece are combined to ensure that the automobile hardware accessories are sufficiently stable during painting. In addition, the design of one-side magnetic attraction and the other side rotation does not require the spraying component to be shifted to the other side for processing. The entire outer surface of the automobile hardware accessories can be processed, which can effectively improve space utilization. This application also has the characteristics of a high degree of automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive work.

[0021] Figure 1 This is a cross-sectional view of a suspension-type spraying device for automotive parts according to a preferred embodiment of the present invention (the track is arranged in the front-to-back direction, and the spraying assembly is located at the rear side);

[0022] Figure 2 This is a cross-sectional view of a hook of a suspension spraying device for automobile parts according to a preferred embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of an auxiliary clamping member of a suspension-type spraying device for automobile parts according to a preferred embodiment of the present invention;

[0024] Figure 4 This is a schematic structural diagram of a spray assembly of a suspension-type spraying device for automobile parts according to a preferred embodiment of the present invention;

[0025] Figure 5 The present invention is a flow chart of a method for hanging spraying of automobile parts according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the following will be a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work shall fall within the scope of protection of the present invention.

[0027] The preferred embodiment of the present invention is a suspension type spraying device for automobile parts, such as Figure 1 See also Figure 2-Figure 4, including a suspension frame 1 for hanging automobile hardware accessories, an electromagnetic adsorption frame 2 for adsorbing automobile hardware accessories 4 located directly below the suspension frame 1, and a spraying assembly 3 located on one side of the suspension frame; a hook 10 is provided on the suspension frame 1 for horizontal rotation connection, a V-shaped elastically foldable clamping and positioning piece 11 is provided inside the hook body of the hook 10, two sliding seats 100 corresponding to the two sides of the clamping and positioning piece 11 are provided inside the hook body of the hook 10, a slip ring 101 is provided on the sliding seat 100, and sliding bars 110 passing through the corresponding slip rings are provided on both sides of the clamping and positioning piece 11; the lower end of the clamping and positioning piece 11 is directly opposite to the lowest point of the inner bottom of the hook body of the hook 10 and there is a gap; the electromagnetic adsorption frame 2 is provided with a first electromagnet 20 directly facing the hook 10 and a material sensing unit for sensing whether there are automobile hardware accessories on the hook, and the suspension frame 1 is also provided with a rotating assembly 12 for driving the hook to rotate horizontally, and the first electromagnet 20, the spraying assembly 3 and the rotating assembly 12 are all triggered by the signal of the material sensing unit to operate according to the set program;

[0028] During processing, the automobile hardware accessories 4 are hung on the hook 10 on the suspension frame 1 and roughly positioned by the clamping positioning piece 11; after the material sensing unit senses the automobile hardware accessories 4 on the hook 10, it sends a signal to trigger the first electromagnet 20 to operate, and magnetically adsorb the automobile hardware accessories 4; the automobile hardware accessories 4 are subjected to tension, which will apply a force to the clamping positioning piece 11, so that the two sides of the clamping positioning piece 11 are folded toward the middle to clamp the automobile hardware accessories 4; the material sensing unit sends a signal delay to trigger the spraying component 3 to operate, and the spraying component 3 performs the spraying effect according to the set spraying program; at the same time, the material sensing unit sends a signal to trigger the rotating component 12 to operate, and the rotating component 12 controls the rotation of the hook body according to the set rotation program; after spraying is completed, the spraying component 3 stops spraying, the rotating component 12 drives the hook to reset, the first electromagnet 20 is powered off to release the magnetic adsorption force on the automobile hardware accessories 4, and the clamping positioning piece 11 recovers its deformation to release the clamping of the automobile hardware accessories 4, so that the automobile hardware accessories 4 can be easily removed;

[0029] By applying the method of the present application, the magnetic force of the first electromagnet 20 is relied upon to absorb and pull the automobile hardware accessories 4, and at the same time, combined with the deformation clamping and positioning of the clamping positioning piece 11, it can ensure that the automobile hardware accessories 4 are sufficiently stable during painting. In addition, the design of one-side magnetic attraction and the other side rotation does not require the spraying component 3 to be moved to the other side for processing. The entire outer surface of the automobile hardware accessories 4 can be processed, which can effectively improve space utilization. The present application also has the characteristics of a high degree of automation.

[0030] Preferably, the electromagnetic adsorption frame 2 includes a base plate 22, on which a longitudinal slide rail 23 corresponding to the first electromagnet 20 is slidably connected, and a bracket located on the side of the longitudinal slide rail 23; the material sensing unit includes an infrared radiation sensor 210, a tension sensor 211 and a processor unit 212 arranged on the bracket; the tension sensor 211 is arranged directly below the first electromagnet 20, and the sensing end of the tension sensor 211 is connected to the bottom surface of the first electromagnet 20 through an elastic member 213;

[0031] With this structural design, when the infrared radiation sensor 210 senses that an object is staying at the spraying position, it sends a signal to the processor unit 212. The processor unit 212 starts the first electromagnet 20 and monitors the reading of the tension sensor 211. If the object is an automotive hardware accessory 4, then due to the adsorption effect between the first electromagnet 20 and the automotive hardware accessory, the reading of the tension sensor 211 will not be zero. At this time, the processor unit can send a start signal to the spraying component 3 and the rotating component 12 to perform the spraying operation. If the staying object is not an automotive hardware accessory 4, but a human body, clothing, gloves, etc., the spraying will not be started, thereby effectively preventing false triggering.

[0032] It should be noted that in a processing environment, the probability that the object is an iron object is very low. Even if it is an iron object, the iron object needs to be able to pull the first electromagnet to make the tension sensor have a reading. For example, a mobile phone will be attracted by the first electromagnet, and the tension sensor will still not have a reading, thereby effectively preventing false triggering.

[0033] In addition, if it can be guaranteed that no foreign objects will enter the processing environment (such as a closed paint spray room), material sensors such as infrared beam components can be directly installed to detect incoming materials.

[0034] Preferably, the bracket includes a first upright pole 240 and a second upright pole 241; the structure is simple. Of course, it can be understood that the structure of the bracket can also adopt other structural forms, and does not necessarily have to adopt the above-mentioned form.

[0035] Preferably, a circular arc track 25 is fixedly provided on the base plate 22 and is located between the first vertical rod 240 and the second vertical rod 241. A mounting plate 250 and a driving unit (an existing circular arc track driving unit can be used) that drives the mounting plate 250 to perform circular motion along the circular arc track are slidably provided on the circular arc track 25; a longitudinal track 23 and a tension sensor 211 are provided on the mounting plate 250; a ball head seat 13 is fixedly provided on the suspension frame 1, and the ball head seat 13 includes a seat body 130 and a ball head 131, and the ball head 131 is connected to the rotating assembly 12; a second electromagnet 132 that attracts and fixes the position of the ball head 131 is provided on the seat body 130;

[0036] This design adds an additional swing angle adjustment function for automotive hardware accessories to adapt to spraying scenarios with more shapes and corners that are difficult to spray. The principle is as follows:

[0037] During use, the driving unit can be used to drive the mounting plate 250 to move along the arc-shaped track 25. At this time, the second electromagnet 132 needs to be disconnected first to allow the ball head 131 to move freely in the seat body 130. The first electromagnet 20 relies on the adsorption force of the automobile hardware accessory 4 to maintain the oblique position of the automobile hardware accessory 4. After adjusting the position, the second electromagnet 132 is used to adsorb and fix the position of the ball head 131, and the angle adjustment can be completed. At this time, the automobile hardware accessory 4 can still be driven by the rotating component 12 to rotate and spray paint in a tilted state.

[0038] Preferably, the longitudinal slide rail 23 and the bracket form a unit and the unit is linearly distributed at multiple locations on the base plate 22; multiple hooks 10 are linearly distributed on the suspension frame 1; using this arrangement design, batch spraying processing can be achieved.

[0039] Preferably, the device further comprises an auxiliary clamping member cooperating with the hook, the auxiliary clamping member comprising a hanging plate 50 with a hanging hole 500 cooperating with the hook 10, a U-shaped seat 51 with a downward opening provided at the lower end of the hanging plate 50, a fastening screw 52 threadedly penetrated on one side arm of the U-shaped seat 51, and a protective gasket 520 provided at the front end of the fastening screw 52;

[0040] This auxiliary clamping part is used to supplement the function of the hook 10. If the automobile hardware accessory 4 is an accessory without a hole, this auxiliary clamping part can be used to first clamp and fix the automobile hardware accessory 4 through the U-shaped seat 51, and then hang the hook through the corresponding hanging hole to improve the applicability of this device.

[0041] Preferably, the spray assembly 3 includes a mounting base 30 , on which a paint spray unit 31 and a lifting unit 32 for driving the paint spray unit to move up and down are provided. The paint spray unit 31 and the lifting unit 32 may adopt existing designs.

[0042] A method for spraying automobile parts in a suspended manner is applied to the above-mentioned automobile parts in a suspended manner, such as Figure 5 As shown, the following steps are included:

[0043] S01: Hang the automobile hardware accessories on the hooks on the suspension rack and roughly position them by clamping the positioning piece;

[0044] S02: After the material sensing unit senses the automobile hardware accessories on the hook, it sends a signal to trigger the first electromagnet to operate and magnetically adsorb the automobile hardware accessories;

[0045] S03: The tension on the automotive hardware will exert a force on the clamping plate, causing the two sides of the clamping plate to fold towards the middle and clamp the automotive hardware.

[0046] S04: The material sensing unit sends a signal to delay the triggering of the spraying component, and the spraying component sprays according to the set spraying program; at the same time, the material sensing unit sends a signal to trigger the rotation component to run, and the rotation component controls the rotation of the hook according to the set rotation program;

[0047] S05: After spraying is completed, the spraying assembly stops spraying, the rotating assembly drives the hook to reset, the first electromagnet is powered off to release the magnetic attraction force on the automobile hardware accessories, and the clamping positioning piece recovers its deformation to release the clamping of the automobile hardware accessories;

[0048] By applying the method of the present application, the magnetic force of the first electromagnet is relied upon to absorb and pull the automotive hardware accessories, and at the same time, combined with the deformation clamping and positioning of the clamping positioning piece, it can ensure that the automotive hardware accessories are sufficiently stable during painting. In addition, the design of one-side magnetic attraction and the other side rotation does not require the spraying component to be moved to the other side for processing. The entire outer surface of the automotive hardware accessories can be processed, which can effectively improve space utilization. The present application also has the characteristics of a high degree of automation.

[0049] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A hanging spraying device for automobile parts, characterized in that: The invention comprises a hanging bracket for hanging automobile hardware accessories, an electromagnetic adsorption bracket for adsorbing automobile hardware accessories located directly below the hanging bracket, and a spraying assembly located on one side of the hanging bracket; a hook is provided on the hanging bracket for horizontal rotation connection, a V-shaped elastically foldable clamping and positioning piece is provided inside the hook body of the hook, two sliding seats corresponding to the two sides of the clamping and positioning piece are provided inside the hook body of the hook, a slip ring is provided on the sliding seat, and sliding bars passing through the corresponding slip rings are provided on both sides of the clamping and positioning piece; the lower end of the clamping and positioning piece is directly opposite to the lowest point of the inner bottom of the hook body of the hook and there is a gap; the electromagnetic adsorption bracket is provided with a first electromagnet directly facing the hook and a material sensing unit for sensing whether there are automobile hardware accessories on the hook, and the hanging bracket is also provided with a rotating assembly for driving the hook to rotate horizontally, the first electromagnet, the spraying assembly and the rotating assembly are all triggered by the signal of the material sensing unit to operate according to the set program; the electromagnetic adsorption bracket comprises a bottom plate, a longitudinal slide rail corresponding to the sliding connection of the first electromagnet and a material sensing unit located on the longitudinal slide rail are provided on the bottom plate. a bracket to the side of the slide rail; the material sensing unit includes an infrared counter-radiation sensor, a tension sensor and a processor unit arranged on the bracket; the tension sensor is arranged directly below the first electromagnet and the sensing end of the tension sensor is connected to the bottom surface of the first electromagnet through an elastic member; when the infrared counter-radiation sensor senses an object, it sends a signal to the processor unit, and the processor unit starts the first electromagnet and monitors the reading of the tension sensor. When the reading is not zero, it sends a start signal to the spray assembly and the rotating assembly; the bracket includes a first vertical pole and a second vertical pole; a circular arc track is fixedly provided on the bottom plate and is located between the first vertical pole and the second vertical pole, and a mounting plate and a driving unit that drives the mounting plate to perform circular motion along the circular arc track are slidably provided on the circular arc track; the longitudinal slide rail and the tension sensor are arranged on the mounting plate; a ball head seat is fixedly provided on the suspension frame, and the ball head seat includes a seat body and a ball head, and the ball head is connected to the rotating assembly; a second electromagnet is provided on the seat body for adsorbing and fixing the position of the ball head.

2. The automobile parts hanging spraying device according to claim 1, characterized in that: The longitudinal slide rail and the bracket form a group of units, and the units are linearly distributed and arranged at multiple locations on the bottom plate; the hooks are linearly distributed and arranged at multiple locations on the suspension bracket.

3. The automobile parts hanging spraying device according to any one of claims 1-2, characterized in that: The device also includes an auxiliary clamping part that cooperates with the hook, and the auxiliary clamping part includes a hanging plate with a hanging hole that cooperates with the hook. The lower end of the hanging plate is provided with a U-shaped seat with a downward opening. A tightening screw is threaded through one side arm of the U-shaped seat, and a protective gasket is provided at the front end of the tightening screw.

4. The automobile parts hanging spraying device according to any one of claims 1-2, characterized in that: The spraying assembly includes a mounting seat, on which a paint spraying unit and a lifting unit for driving the paint spraying unit to move up and down are arranged.

5. A method for hanging spraying of automobile parts, applied to the hanging spraying device for automobile parts according to any one of claims 1 to 4, characterized in that: The following steps are involved: Hang the automobile hardware accessories on the hooks on the suspension rack and roughly position them by clamping the positioning pieces; After the material sensing unit senses the automobile hardware accessories on the hook, it sends a signal to trigger the first electromagnet to operate and magnetically adsorb the automobile hardware accessories; The tension on the automobile hardware accessories will exert a force on the clamping positioning piece, causing the two sides of the clamping positioning piece to fold towards the middle and clamp the automobile hardware accessories; The material sensing unit sends a signal to delay the triggering of the spraying component to run, and the spraying component sprays according to the set spraying program; at the same time, the material sensing unit sends a signal to trigger the rotation component to run, and the rotation component controls the rotation of the hook according to the set rotation program; After spraying is completed, the spraying assembly stops spraying, the rotating assembly drives the hook to reset, the first electromagnet is powered off to release the magnetic adsorption force on the automobile hardware accessories, and the clamping positioning piece recovers its deformation to release the clamping of the automobile hardware accessories.

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