High-voltage wire harness rear cover inner wall automatic cleaning, gluing and drying integrated equipment

Abstract

The application discloses a high-voltage wire harness rear cover inner wall automatic cleaning, gluing and drying integrated equipment, which comprises a rotary wheel disc, a feeding unit, a cleaning unit, a gluing unit, a drying unit and a discharging unit. On one hand, based on the rotation of the wheel disc, the automatic gluing of feeding, cleaning, gluing, drying and discharging is sequentially carried out, the position degree of the gluing is accurate, and the gluing consistency is good; on the other hand, based on the design of the seat core alignment insertion forming the gluing area and the air flow channel, not only the blowing air flow is discharged during cleaning, but also the drying air flow can be discharged during drying, so that the cleaning and drying efficiency is improved, the insufficient adhesion of the glue and the rear cover caused by dust is eliminated, and the uneven drying heating is avoided, in addition, based on the effective shielding of the top shielding cover plate to the top wire harness port end face, the gluing overflow is avoided, uniform gluing is carried out based on the spiral spraying or circumferential covering during upward movement, the gluing time is shortened, and the influence of gluing on other processes is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of automated processing, and in particular relates to an integrated device for automatically cleaning, gluing and drying the inner wall of a rear cover of a high-voltage wiring harness. Background Art

[0002] The high-voltage wiring harness back cover is a connector for transmitting high-voltage power signal cables in a vehicle. It is primarily used in electric and hybrid vehicles, connecting the battery, inverter, and motor to ensure efficient power transmission. The high-voltage wiring harness for new energy vehicles is a key component of the high-voltage electrical system, ensuring the reliable operation and safety of new energy vehicles. Simply put, it carries the internal and external wiring harness connections of electric and hybrid vehicles, distributes power through the distribution box, transmits power efficiently and with high quality, and shields external signals from drying out. It also serves as the neural network of the high-voltage system of new energy vehicles, connecting all high-voltage electronic components. Furthermore, it can transmit power and data, making it extremely important for new energy vehicles. As a key component of the high-voltage wiring harness, the high-voltage wiring harness back cover needs to be tightly connected to the high-voltage wiring harness. Therefore, the inside of the high-voltage wiring harness back cover needs to be coated with glue and then filled with injection-molded silicone. This ensures a tight connection between the silicone, the wiring harness, and the back cover. If the glue is not sticky enough to the back cover, it will affect the transmission of high-voltage power signals.

[0003] However, since the glue is applied near the harness hole (the glue application requirements are too high), most of the glue applied on the back cover on the market is applied manually and heated externally, which has the following technical defects:

[0004] 1) Glue application accuracy and consistency are poor. Manual application relies heavily on the operator's proficiency, experience, attention, and fatigue level. Different operators, or even the same operator, may apply significantly different amounts, shapes, and positions of glue at different times. However, precise application in narrow and corner locations near the harness hole is very difficult. Manual operation cannot ensure that the glue accurately covers the required area and shape, and it is easy to have glue shortage, insufficient glue, excessive glue accumulation, or deviation in the application position. At the same time, the glue amount is difficult to control evenly. Too little glue will lead to insufficient bonding strength (false adhesion) and poor sealing; too much glue will cause glue overflow and contaminate surrounding areas (such as the contact surface between the back cover and the harness, the back cover body, or the injection mold), and may even flow into the inside of the harness interface, directly affecting the quality of the subsequent injection-molded silicone or the contact of the signal terminal.

[0005] 2) During the external heating process, there is a problem of uneven heating. For back covers with complex shapes or those that require local curing and strengthening, local overcooling (insufficient curing) or overheating (damage and deformation of the colloid or plastic body) may occur;

[0006] 3) Since the glue is applied inside the wiring harness hole, if there is dust in the hole, the glue will not stick to the back cover if the dust is not cleaned;

[0007] 4) Low production efficiency, especially under the requirements of high precision and strict quality control, makes it difficult to meet the large-scale, fast-paced needs of modern production. At the same time, skilled workers are required, labor costs are high, and there are challenges such as labor shortage and high mobility. In addition, workers are exposed to glue for a long time, which poses potential health risks and requires additional protection. Summary of the Invention

[0008] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a new all-in-one device for automatically cleaning, gluing and drying the inner wall of a high-voltage wiring harness rear cover.

[0009] In order to achieve the above object, the technical solution adopted by the present invention is:

[0010] An integrated device for automatically cleaning, gluing, and drying the inner wall of a high-voltage wiring harness rear cover, comprising:

[0011] A rotary wheel, comprising a carrier plate and a plurality of carriers formed on the carrier plate, wherein the high-voltage wire harness rear cover is sequentially transferred to a loading station, a cleaning station, a gluing station, a drying station, and an unloading station based on the rotation of the carrier plate, each carrier comprising a seat plate and a seat core, wherein the high-voltage wire harness rear cover is aligned and mounted on the seat plate, the seat core is aligned and inserted into the harness hole, the area to be glued is located between the seat core and the top harness port, and an air flow channel is formed between the seat core and the harness hole;

[0012] A loading unit, which is used to align and assemble the high-voltage wire harness rear cover to the carrier;

[0013] A cleaning unit, which is used to gradually purge the area to be glued from the mouth inward, and the purged gas is discharged from the air flow channel;

[0014] The gluing unit includes a gluing seat located at the gluing station, a top shielding cover plate that moves up and down and can shield the end face of the top wire harness opening, and a gluing nozzle that moves up and down, wherein a through hole aligned with the top wire harness opening is formed on the top shielding cover plate, and the gluing nozzle forms a covering spray from the circumferential direction and moves at a uniform speed from the bottom of the area to be glued to the opening to spray; or, the gluing nozzle cooperates in self-rotation and lifting from the bottom of the area to be glued to the opening to form a spiral moving spray;

[0015] The drying unit includes a frame located at the drying station, a drying lamp installed on the frame and capable of moving up and down, etc.

[0016] The unloading unit includes an unloading robot and an endless conveyor belt. The unloading robot takes out the dried high-voltage wire harness rear cover from the frame and transfers it to the endless conveyor belt.

[0017] Preferably, the cleaning unit forms a spiral airflow and gradually blows inward from the opening of the area to be glued, using a step-by-step downward blowing method to remove residual dust.

[0018] According to a specific embodiment and preferred aspect of the present invention, the cleaning unit includes a cleaning seat located at a cleaning station, an airflow nozzle mounted on the cleaning seat and capable of self-rotation and up-and-down movement, wherein the airflow ejected by the airflow nozzle intersects with the length direction of the harness hole, and a spiral purge airflow is formed based on the combination of self-rotation and up-and-down movement. Based on the self-rotation and gradual extension of the airflow nozzle, a spiral purge airflow is formed in the synchronous movement of the two degrees of freedom directions to enhance the cleaning efficiency and effect.

[0019] Preferably, the cleaning unit further comprises an ion generator communicated with the airflow nozzle, wherein the ion airflow formed by the ion generator is impacted to enhance the dust cleaning effect.

[0020] According to another specific embodiment and preferred aspect of the present invention, the top shielding cover is further movable along the radial direction of the carrier plate, and the gluing unit further includes a self-cleaning assembly for air-drying and scraping the through-holes of the top shielding cover, thereby preventing residual glue from forming in the through-holes of the top shielding cover during the gluing process and affecting normal gluing. In short, it does not require cleaning after each spraying; instead, it is periodically scraped based on the number of processes or the amount of residual glue.

[0021] Preferably, the self-cleaning assembly includes a fixed frame, a cleaning frame plate mounted on the fixed frame, a nozzle formed on the cleaning frame plate, and a scraper hose located at the end of the nozzle and extending upward from the top of the cleaning frame plate. The airflow ejected from the nozzle dries any residual glue, while the scraper hose aligns with and passes through the inner wall of the through-hole to scrape away any residual glue. In short, when periodic residual glue removal is required, the scraper hose passes through the through-hole to remove the residual glue. However, to avoid glue application for the next product, the nozzle is allowed to air dry after the glue is sprayed once, preventing residual glue from flowing into the area to be glued.

[0022] In some specific embodiments, a residual glue collection cylinder is further provided in the rubber scraping tube, which includes a trumpet portion hung at the tube mouth with a gradually decreasing outer diameter, and a cylinder body extending downward from the bottom of the trumpet portion to form a cylinder cavity, wherein an air hole is formed on the trumpet portion, and a circulating air cavity is formed between the cylinder body and the inner wall of the rubber scraping tube, which can avoid interference between the rubber scraping and the airflow drying. At the same time, the airflow combing and guiding formed by the circulating air cavity is more conducive to the drying of the through-holes.

[0023] Furthermore, the bottom of the cylinder is in a cone shape with an outer diameter gradually decreasing from top to bottom. Based on the cone shape, it is more conducive to the diversion of air flow and entering the annular air cavity with less obstruction.

[0024] According to another specific embodiment and preferred aspect of the present invention, the drying unit further includes a cover positioned on the frame and capable of sealing the wiring harness opening. The drying lamp passes under the cover, and the cover and wiring harness opening form a closed-top drying chamber. Gas generated during drying is discharged through the airflow channel. Drying in a relatively closed space not only improves drying quality, but the resulting airflow also accelerates drying efficiency.

[0025] Preferably, the cover comprises a cover body and a cover enclosure, wherein the drying lamp is located within the area formed by the cover enclosure. The cover body forms a relatively closed drying area based on the cover body; at the same time, the cover body and the cover enclosure form a regional protection, which acts as a lampshade.

[0026] According to another specific embodiment and preferred aspect of the present invention, the loading unit includes a loading robot located at the loading station, wherein the loading robot inserts the high-voltage wire harness rear cover into the seat core in an aligned manner with the wire harness holes extending vertically. The loading is performed by the robot.

[0027] Preferably, the loading robot includes a pick-up head based on the harness hole, a flipping element that drives the pick-up head to flip back and forth horizontally and vertically, and an insertion element that drives the flipping element and the pick-up head up and down. Based on the two degrees of freedom of movement around the horizontal flipping and up and down directions, the insertion is achieved. It should be further explained that the picking method is based on the harness hole. That is, the pick-up head is inserted into the harness hole to position and pick the product, avoiding damage or deformation of the product surface caused by external clamping, which in turn affects the glue coating quality.

[0028] In some embodiments, the loading unit further includes a material preparation platform disposed at the loading station, wherein the harness hole of the high-voltage harness rear cover is vertically extended and mounted on the material preparation platform. The material preparation increases the efficiency of the manipulator in picking up materials and also assists in product loading.

[0029] According to another specific embodiment and preferred aspect of the present invention, there are at least two groups of drying units, each forming a drying station. The high-voltage wiring harness rear cover passes through each drying station in sequence, and the drying time required is the sum of the drying times of the multiple drying stations. The number of drying stations is arranged based on the drying time required, ensuring that the product is completely dried after passing through the last drying station, avoiding the need for other stations to wait due to drying time, and improving gluing efficiency.

[0030] According to another specific embodiment and preferred aspect of the present invention, multiple loading stations are formed on each carrier, and the loading unit, cleaning unit, gluing unit, drying unit, and unloading unit are all capable of simultaneously loading, cleaning, gluing, drying, and unloading multiple high-voltage wire harness rear covers at each loading station. In short, multiple products can be processed simultaneously at corresponding stations at a time, which can significantly improve work efficiency.

[0031] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art:

[0032] The existing high-voltage wiring harness rear cover is coated with glue. Because the glue is applied at a position close to the harness hole and the harness port (the glue application requirements are too high), the glue application accuracy and consistency are poor. Manual application is heavily dependent on the operator's proficiency, experience, attention and fatigue. Different operators or even the same operator at different times may apply significant differences in the amount, shape and position of glue. However, it is very difficult to precisely apply glue at a narrow corner where the harness hole is close to the harness port. Manual operation cannot ensure that the glue accurately covers the required area and shape, and it is easy to have glue shortage, insufficient glue, excessive glue accumulation or deviation in the application position. At the same time, it is difficult to control the glue amount evenly. Too little glue will lead to insufficient bonding strength (false adhesion) and loose sealing; too much glue will It will cause glue overflow and contaminate surrounding areas (such as the contact surface between the back cover and the wiring harness, the back cover body or the injection mold), and may even flow into the inside of the wiring harness interface, directly affecting the quality of the subsequent injection-molded silicone or the contact of the signal terminals; at the same time, there is a problem of uneven heating during the external heating process. For back covers with complex shapes or those that require local curing and strengthening, local overcooling (insufficient curing) or overheating (damage and deformation of the colloid or plastic body) may occur; in addition, since the glue is applied in the wiring harness hole, once there is dust in the hole, if the dust is not cleaned, the adhesion between the glue and the back cover will be insufficient; at the same time, the production efficiency is low, especially under the requirements of high precision and strict quality control, it is difficult to meet the large-scale, fast-paced modern production needs, and it requires skilled technicians. The workers have high labor costs and face challenges of labor shortage and mobility. In addition, workers are exposed to glue for a long time, which poses potential health risks and requires additional protection. The present invention improves the structure of the integrated equipment for automatic cleaning, gluing and drying the inner wall of the high-voltage wire harness rear cover, and cleverly solves the various existing deficiencies. After adopting the integrated equipment, first, the high-voltage wire harness rear cover is assembled to the carrier of the loading station based on the loading unit, and the seat core is inserted into the harness hole, the area to be glued is located between the seat core and the top harness port, and an air flow channel is formed between the seat core and the harness hole; secondly, the carrier rotates into the cleaning station, and the area to be glued is gradually purged inward from the mouth of the area to be glued, and the gas after purging is discharged from the air flow channel to complete the area to be glued. Cleaning; then, the carrier rotates to enter the gluing station, and the top shielding cover forms a shield on the end face of the wire harness opening, and then the glue nozzle forms a covering spray from the circumference, and moves from the bottom of the area to be glued to the opening at a uniform speed to spray (spray from bottom to top) to complete the gluing; then, the carrier rotates to enter the drying station, and the drying lamp extends into the gluing area to complete the beam drying; finally, the carrier rotates to enter the unloading station, and the unloading robot takes out the dried high-voltage wire harness rear cover from the carrier and transfers it to the endless conveyor belt to complete the unloading. Therefore, on the one hand, the present invention is based on the rotation of the carrier, and sequentially performs loading, cleaning, gluing, drying, and unloading, thereby automatically realizing the automatic gluing process of the high-voltage wire harness rear cover, which not only has accurate gluing position but also good gluing consistency;Furthermore, the design of the gluing area and airflow channel formed by the seat core's aligned insertion not only discharges the purge airflow during cleaning but also the dry airflow during drying, improving cleaning and drying efficiency. This also eliminates the lack of adhesion between the glue and the back cover caused by dust and prevents uneven drying and heating. Furthermore, the top shielding cover effectively shields the top wiring harness port end face, preventing glue overflow. During upward movement, spiral spraying or circumferential coverage ensures uniform glue application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of the automatic cleaning, gluing and drying equipment for the inner wall of the rear cover of the high-voltage wire harness of this embodiment;

[0034] Figure 2 for Figure 1 Schematic diagram of the structure of the loading unit;

[0035] Figure 3 for Figure 1 Schematic diagram of the structure of the cleaning unit;

[0036] Figure 4 for Figure 1 Schematic diagram of the structure of the middle glue coating unit;

[0037] Figure 5 for Figure 4 A magnified schematic diagram of the local structure;

[0038] Figure 6 for Figure 5 A half-section diagram of the structure of the self-cleaning component;

[0039] Figure 7 for Figure 1 Schematic diagram of the structure of the drying unit;

[0040] Figure 8 for Figure 7 Schematic diagram of local structural decomposition;

[0041] Among them: 1. Rotary wheel; 10. Carrying plate; 11. Carrying seat; 110. Seat plate; 111. Seat core; 2. Loading unit; 20. Loading manipulator; 200. Retrieving head; 201. Turning power unit; 202. Inserting power unit; 21. Material preparation platform; 210. Platform frame; 211. Temporary storage seat; 3. Cleaning unit; 30. Cleaning seat; 31. Air flow nozzle; 32. Ion generator; 33. Up and down adjustment member; 34. Radial adjustment member; 4. Gluing unit; 40. Gluing seat; 41. Top shielding cover; 41. 0. Through hole; 42. Glue spray nozzle; 43. Self-cleaning component; 430. Fixed frame; 431. Cleaning frame plate; 432. Nozzle; 433. Glue scraping hose; 434. Residual glue collecting cylinder; a. Horn part; a1. Air hole; b. Cylinder body; b1. Cylinder bottom; 5. Drying unit; 50. Stand; 51. Drying lamp; 52. Sealing cover; 520. Cover body; 521. Cover panel; 53. Drying power supply; 54. Lifting component; 6. Unloading unit; 60. Unloading robot; 61. Annular conveyor belt; G. High-voltage wiring harness rear cover. DETAILED DESCRIPTION

[0042] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art can make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0047] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0048] like Figures 1 to 8 As shown, the automatic cleaning, gluing and drying integrated equipment for the inner wall of the rear cover of the high-voltage wiring harness of this embodiment includes a rotary wheel 1, a loading unit 2, a cleaning unit 3, a gluing unit 4, a drying unit 5 and a unloading unit 6, wherein the loading unit 2, the cleaning unit 3, the gluing unit 4, the drying unit 5 and the unloading unit 6 sequentially form a loading station, a cleaning station, a gluing station, a drying station and an unloading station arranged in the circumference of the rotary wheel 1.

[0049] Specifically, the rotary disc 1 includes a carrier disc 10 and a plurality of carriers 11 formed on the carrier disc 10, wherein the high-voltage wire harness rear cover G is transferred to the loading station, cleaning station, gluing station, drying station and unloading station in sequence based on the rotation of the carrier disc 10, and each carrier 11 includes a seat plate 110 and a seat core 111, wherein the high-voltage wire harness rear cover G is mounted on the seat plate 110, and the seat core 111 is inserted into the wire harness hole, and the area to be glued is located between the seat core 111 and the top wire harness port, and an air flow channel is formed between the seat core 111 and the wire harness hole.

[0050] In some specific embodiments, the loading unit 2 is used to align and assemble the high-voltage wire harness rear cover G onto the carrier 11. The loading unit 2 includes a loading robot 20 and a material preparation platform 21 located at the loading station. The loading robot 20 aligns and inserts the high-voltage wire harness rear cover G onto the carrier core 111, with the harness holes extending vertically. The harness holes of the high-voltage wire harness rear cover G are mounted on the material preparation platform 21, with the harness holes extending vertically. Material preparation increases the robot's material removal efficiency and also assists in product loading.

[0051] The loading robot 20 includes a material picking head 200 based on the harness hole, a flipping power member 201 that drives the material picking head 200 to flip back and forth in the horizontal and vertical directions, and an insertion power member 202 that drives the flipping power member 201 and the material picking head 200 to move up and down. Based on the two degrees of freedom of movement around the horizontal flipping direction and the up and down directions, the insertion is achieved. At the same time, it needs to be further explained that the material picking method is based on the harness hole. That is, the material picking head 200 inserted into the harness hole is used to position and pick up the product, avoiding external clamping causing damage or deformation to the product surface, thereby affecting the quality of the glue coating. The material preparation platform 21 includes a platform frame 210 and a temporary storage seat 211 located on the platform frame 210. The high-voltage harness rear cover G is upright on the temporary storage seat 211.

[0052] The cleaning unit 3 is used to gradually purge the area to be glued from the mouth inward, and the gas after purge is discharged from the air flow channel. In short, the cleaning unit 3 forms a spiral airflow and gradually purges from the mouth of the area to be glued inward. A step-by-step downward purge method is adopted to remove the residual dust. In some specific embodiments, the cleaning unit 3 includes a cleaning seat 30 located at the cleaning station, an airflow nozzle 31 installed on the cleaning seat 30 that can rotate and move up and down, and an ion generator 32 connected to the airflow nozzle 31, wherein the airflow ejected by the airflow nozzle 31 intersects with the length direction of the wire harness hole, and forms a gradually advancing spiral purge airflow based on the combination of rotation and up and down movement. Based on the self-rotation and gradual extension of the air flow nozzle 31 (at this time, the self-rotation of the air flow nozzle 31 is driven by the self-rotation motor, and the gradual extension is driven by the downward movement of the cleaning seat 30, that is, the air flow nozzle 31 moves downward accordingly), a spiral purge airflow is formed in the synchronous movement in the two degrees of freedom directions to enhance the cleaning efficiency and effect; based on the impact of the ion airflow formed by the ion generator 32, the dust cleaning effect is improved.

[0053] In this example, the cleaning seat 30 can move radially along the carrier plate 10, and can also be adjusted up and down, based on the upper and lower adjustment parts 33 and the radial adjustment parts 34, to perform the required cleaning position and top-down blowing. As for the upper and lower adjustment parts 33 and the radial adjustment parts 34, they are conventional power cylinders and rails.

[0054] The gluing unit 4 includes a gluing seat 40 located at the gluing station, a top shielding cover 41 that can move up and down and can cover the end face of the top wire harness opening, a gluing nozzle 42 that can move up and down, and a self-cleaning component 43, wherein a through hole 410 is formed on the top shielding cover 41, which is aligned with the top wire harness opening, and the top shielding cover 41 can also be moved radially along the carrier 10; the gluing nozzle 42 forms a covering spray from the circumference, and moves at a uniform speed from the bottom of the area to be glued to the mouth to spray; the self-cleaning component 43 is used to air-dry the through hole 410 of the top shielding cover 41 and remove residual glue, so as to avoid the normal gluing caused by the residual glue in the through hole 410 of the top shielding cover 41 during the gluing process. In short, it does not need to be cleaned every time it is sprayed, but is regularly removed according to the number of processes or the amount of residual glue.

[0055] In some specific embodiments, the self-cleaning assembly 43 includes a fixed frame 430, a cleaning frame plate 431 mounted on the fixed frame 430, a nozzle 432 formed on the cleaning frame plate 431, a scraping tube 433 located at the end of the nozzle 432 and extending upward from the top of the cleaning frame plate 431, and a residual glue collection cylinder 434 located within the scraping tube 433. The airflow ejected by the nozzle 432 dries the residual glue, and the scraping tube 433 is aligned with and adheres to the inner wall of the through-hole 410 to remove the residual glue. In short, when residual glue needs to be removed regularly, the scraping tube 433 passes through the through-hole 410 to remove the residual glue. However, in order to avoid gluing the next product, the nozzle 432 is used to air dry the glue after the glue is sprayed once to prevent the residual glue from flowing into the area to be glued. The residual glue collection tube 434 comprises a gradually tapering outer diameter trumpet a, mounted at the nozzle, and a barrel b extending downward from the bottom of trumpet a to form a barrel cavity. Bell a defines an air hole a1, creating a circular air cavity between barrel b and the inner wall of the scraping tube 433. This prevents interference between scraping glue and airflow during drying. The circular air cavity also organizes and guides the airflow, further facilitating drying through hole 410. The bottom b1 of barrel b is tapered, with the outer diameter gradually decreasing from top to bottom. This conical shape facilitates airflow diversion and minimizes obstruction to the circular air cavity.

[0056] The drying unit 5 includes a frame 50 located at the drying station, a drying lamp 51 mounted on the frame 50 and capable of moving up and down, a cover 52 located on the frame 50 and capable of sealing the wiring harness opening, a drying power supply 53 and a lifting assembly 54, wherein the drying lamp 51 passes through the cover 52 from below, and the cover 52 and the wiring harness opening are sealed to form a drying chamber with a closed top, and the gas formed by drying can be discharged from the air flow channel. Drying based on a relatively closed space can not only improve the drying quality, but also the exhaust of the air flow formed can accelerate the drying efficiency. In some specific embodiments, the cover 52 includes a cover body 520 and a cover enclosure 521, wherein the drying lamp 51 is located in the area formed by the cover enclosure 521. The cover 52 based on the cover body 520 forms a relatively closed drying area; at the same time, the combination of the cover body 520 and the cover enclosure 521 forms a regional protection, which acts like a lampshade. The drying power supply 53 is of conventional design, and the lifting assembly 54 adopts a telescopic cylinder and a guide rod to perform the closing operation of the drying chamber, so that rapid drying is performed in the drying chamber with the top closed.

[0057] The unloading device 6 includes an unloading robot 60 and an endless conveyor belt 61. The unloading robot 60 removes the dried high-voltage wire harness rear cover G from the bracket 50 and transfers it to the endless conveyor belt 61. Specifically, the unloading robot 60 forms a clamp on both sides of the top of the wire harness hole, and then moves up and down and sideways to transfer the high-voltage wire harness rear cover G to the endless conveyor belt 61. Then, the unloading robot 60 resets to start the next round of unloading.

[0058] In addition, the present application forms two loading stations on a single carrier (of course it can be three or more), and two drying stations are provided accordingly according to the time required for drying. Therefore, the loading station, cleaning station, gluing station, double drying station and unloading station constitute a total of six stations, that is, the rotary wheel completes two adjacent stations continuously each time it rotates 60°, and there is no need to wait as much as possible, and the time required for each action is equal, thereby greatly improving work efficiency.

[0059] In summary, after adopting this integrated equipment, first, the high-voltage wire harness rear cover is assembled to the carrier of the loading station based on the loading unit, and the seat core is inserted into the wire harness hole, the area to be glued is located between the seat core and the top wire harness opening, and an air flow channel is formed between the seat core and the wire harness hole; secondly, the carrier rotates into the cleaning station, and gradually blows inward from the mouth of the area to be glued, and the gas after blowing is discharged from the air flow channel to complete the cleaning of the area to be glued; then, the carrier rotates into the gluing station, and the top shielding cover forms a shield on the end face of the wire harness opening, and then the glue nozzle forms a covering spray from the circumference, and moves at a uniform speed from the bottom of the area to be glued to the mouth to spray. (spraying from bottom to top) to complete the gluing; then, the carrier plate rotates to enter the drying station, and the drying lamp extends into the gluing area to complete the beam drying; finally, the carrier plate rotates to enter the unloading station, and the unloading robot takes out the dried high-voltage wire harness rear cover from the carrier and transfers it to the circular conveyor belt to complete the unloading. Therefore, on the one hand, the present invention is based on the rotation of the carrier plate, and performs loading, cleaning, gluing, drying, and unloading in sequence, so as to automatically realize the automatic gluing process of the high-voltage wire harness rear cover, which not only has accurate gluing position but also good gluing consistency; on the other hand, based on the design of the seat core alignment plug-in to form the gluing area and the airflow channel, not only can the purge airflow be discharged during cleaning, but also the gluing process of the high-voltage wire harness rear cover can be automatically realized. Out, and the dry airflow can also be discharged during drying to improve the efficiency of cleaning and drying, while also eliminating the problem of insufficient adhesion between the glue and the back cover caused by dust, and avoiding uneven drying and heating. In addition, based on the effective shielding of the top shielding cover on the end face of the top harness port, the glue is prevented from overflowing, and the glue is evenly applied during the uniform upward movement; the third aspect of the cleaning unit forms a spiral airflow, and gradually blows inward from the mouth of the area to be glued, that is, a gradual downward push-down blowing method is adopted to remove the residual dust. Specifically, based on the self-rotation and gradual extension of the airflow nozzle (the self-rotation of the airflow nozzle is driven by the self-rotation motor, and the gradual extension is driven by the cleaning The downward movement of the seat, that is, the air flow nozzle moves downward accordingly), can form a spiral purge airflow in the synchronous movement of the two degrees of freedom directions, and the ion airflow formed by the ion generator is impacted, thereby improving the cleaning efficiency and effect; the fourth aspect is that the glue coating is formed from bottom to top and covers the circumference. The reason for from bottom to top rather than from top to bottom is that everything must meet the processing needs, because the time spent at each station is short, and after from bottom to top, it can directly enter the next process, but if from top to bottom, it is necessary to add a reset action of the glue nozzle, causing the waiting time of other stations to be too long, affecting the processing efficiency;On the fifth aspect, the through-holes of the top shielding cover plate can be self-cleaned by air drying and scraping, so as to avoid the residual glue in the through-holes of the top shielding cover plate caused by the gluing process, which affects the normal gluing. In short, it does not need to be cleaned every time it is sprayed, but is regularly scraped according to the number of processes or the amount of residual glue. That is, when it is necessary to remove the residual glue regularly, the scraping tube passes through the through-hole to form the residual glue scraping. However, in order not to apply glue to the next product, the nozzle is air-dried after the spraying is completed to avoid the residual glue flowing to the area to be glued. At the same time, the residual glue collection cylinder can not only collect the scraped glue layer (without being disturbed by the air-drying airflow), but also the formed shape and annular airflow cavity can also perform diversion and guidance of airflow combing, so as to form an annular airflow, which more effectively improves the air-drying efficiency. On the sixth aspect, the closed drying environment formed not only improves the drying quality, but also accelerates the drying by the exhaust of the formed airflow. At the same time, the drying lamp is located in the area formed by the cover enclosure, and a relatively closed drying area is formed based on the sealing of the cover body; based on the combination of the cover body and the cover enclosure Forming regional protection, its function is equivalent to a lampshade; the seventh aspect is based on the two degrees of freedom of movement around the horizontal direction and the up and down direction to achieve positioning and insertion. At the same time, it needs to be further explained that the way of picking up materials is based on the harness hole. That is, the picking head inserted into the harness hole is used to position and pick up the product, avoiding external clamping to cause damage or deformation of the product surface, thereby affecting the quality of glue coating. At the same time, based on material preparation to increase the efficiency of the manipulator to pick up materials, it also assists in product loading; the eighth aspect is that multiple products can be processed at the corresponding stations simultaneously each time, so that work efficiency can be greatly improved. At the same time, each group of drying units forms a drying station. The high-voltage harness rear cover passes through each drying station in turn, and the time required for drying is the sum of the drying times formed by multiple drying stations. The number of drying stations is arranged based on the time required for drying, so that the product after passing the last drying station completes the drying purpose, avoiding the waiting time of other stations due to the drying time, and accelerating the glue coating efficiency.

[0060] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the scope of protection of the present invention. Any equivalent changes or modifications made based on the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An integrated device for automatically cleaning, gluing and drying the inner wall of the rear cover of a high-voltage wiring harness, characterized in that: It includes: A rotary wheel, comprising a carrier plate and a plurality of carriers formed on the carrier plate, wherein the high-voltage wire harness rear cover is sequentially transferred to a loading station, a cleaning station, a gluing station, a drying station, and an unloading station based on the rotation of the carrier plate, each carrier comprising a seat plate and a seat core, wherein the high-voltage wire harness rear cover is aligned and mounted on the seat plate, the seat core is aligned and inserted into the harness hole, the area to be glued is located between the seat core and the top harness port, and an air flow channel is formed between the seat core and the harness hole; A loading unit, which is used to align and assemble the high-voltage wire harness rear cover to the carrier; A cleaning unit, which is used to gradually purge the area to be glued from the mouth to the inside, and the purged gas is discharged from the air flow channel; A gluing unit, comprising a gluing seat located at a gluing station, a top shielding cover plate that moves up and down and can shield the end face of the top wire harness opening, and a gluing nozzle that moves up and down, wherein a through hole aligned with the top wire harness opening is formed on the top shielding cover plate, the gluing nozzle forms a covering spray from the circumferential direction, and moves at a uniform speed from the bottom of the area to be glued to the opening to spray, or the gluing nozzle cooperates in self-rotation and lifting from the bottom of the area to be glued to the opening to form a spiral moving spray; The top shielding cover plate can also be arranged to move radially along the carrier plate. The glue coating unit also includes a self-cleaning component for air-drying and scraping off the through-holes of the top shielding cover plate. The self-cleaning component includes a fixing frame, a cleaning frame plate installed on the fixing frame, a nozzle formed on the cleaning frame plate, and a glue scraping tube located at the end of the nozzle and extending upward from the top of the cleaning frame plate, wherein the airflow ejected by the nozzle is used to air-dry the residual glue, and the glue scraping tube is aligned and fits the inner wall of the through-hole to pass through and scrape off the residual glue. A residual glue collecting cylinder is also provided in the glue scraping tube, and the residual glue collecting cylinder includes a trumpet portion hung at the pipe mouth and with an outer diameter gradually decreasing, and a cylinder body extending downward from the bottom of the trumpet portion to form a cylinder cavity, wherein an air hole is formed on the trumpet portion, and a circulating air cavity is formed between the cylinder body and the inner wall of the glue scraping tube; The drying unit includes a frame located at the drying station and a drying lamp mounted on the frame and capable of moving up and down; The unloading unit includes an unloading robot and an endless conveyor belt. The unloading robot takes out the dried high-voltage wire harness rear cover from the frame and transfers it to the endless conveyor belt.

2. The automatic cleaning, gluing and drying integrated device for the inner wall of the rear cover of the high-voltage wire harness according to claim 1 is characterized in that: The cleaning unit forms a spiral airflow and gradually blows inwards from the mouth of the area to be glued.

3. The automatic cleaning, gluing and drying integrated device for the inner wall of the rear cover of the high-voltage wire harness according to claim 1 is characterized in that: The cleaning unit includes a cleaning seat located at the cleaning station and an air flow nozzle installed on the cleaning seat that can rotate and move up and down, wherein the air flow ejected by the air flow nozzle intersects with the length direction of the wire harness hole, and forms a gradually advancing spiral purge air flow based on the combination of rotation and up and down movement.

4. The automatic cleaning, gluing and drying integrated device for the inner wall of the rear cover of the high-voltage wire harness according to claim 3 is characterized in that: The cleaning unit also includes an ion generator in communication with the air flow nozzle.

5. The automatic cleaning, gluing and drying integrated device for the inner wall of the rear cover of the high-voltage wire harness according to claim 1 is characterized in that: The bottom of the cylinder is in a cone shape with the outer diameter gradually decreasing from top to bottom.

6. The automatic cleaning, gluing and drying integrated device for the inner wall of the rear cover of the high-voltage wire harness according to claim 1 is characterized in that: The drying unit also includes a cover located on the frame and capable of closing the wiring harness opening. The drying lamp passes under the cover. The cover and the wiring harness opening are closed to form a drying chamber with a closed top. The gas generated by drying can be discharged from the air flow channel.

7. The automatic cleaning, gluing and drying integrated device for the inner wall of the rear cover of the high-voltage wire harness according to claim 6 is characterized in that: The sealing cover comprises a cover body and a cover enclosure, wherein the drying lamp is located in the area formed by the cover enclosure.

8. The automatic cleaning, gluing and drying integrated device for the inner wall of the rear cover of the high-voltage wire harness according to claim 1 is characterized in that: The loading unit includes a loading robot located at a loading station, wherein the loading robot inserts the high-voltage wire harness rear cover into the seat core in a position where the wire harness hole extends up and down.

9. The automatic cleaning, gluing and drying integrated device for the inner wall of the rear cover of the high-voltage wire harness according to claim 8 is characterized in that: The feeding robot comprises a picking head based on the harness hole, a turning power piece driving the picking head to turn back and forth in the horizontal and vertical directions, and an inserting power piece driving the turning power piece and the picking head to move up and down.

10. The automatic cleaning, gluing and drying integrated device for the inner wall of the rear cover of the high-voltage wire harness according to claim 9, characterized in that: The loading unit further comprises a material preparation platform arranged at the loading station, wherein the harness holes of the high-voltage harness rear cover extend up and down and are mounted on the material preparation platform.

11. The automatic cleaning, gluing and drying integrated device for the inner wall of the rear cover of a high-voltage wire harness according to any one of claims 1 to 10, characterized in that: A plurality of loading stations are formed on each carrier, and the loading unit, cleaning unit, gluing unit, drying unit and unloading unit can synchronously load, clean, gluing, dry and unload a plurality of high-voltage wire harness rear covers on each loading station.

12. The automatic cleaning, gluing and drying integrated device for the inner wall of the rear cover of a high-voltage wire harness according to any one of claims 1 to 10, characterized in that: There are at least two groups of drying units, each group of drying units forms a drying station, the high-voltage wire harness rear cover passes through each drying station in sequence, and the time required for drying is the sum of the drying times formed by multiple drying stations.

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