Automatic detection system for wiper large gear pin pressing assembly

Abstract

The application relates to a wiper large gear pin pressing assembly detection automatic system, which can efficiently and orderly complete wiper large gear, straight pin and plastic cap pressing automatic feeding and assembly. The application is fully automatic, each process is reasonable and orderly, detection is carried out after the installation of the straight pin and the plastic cap, meanwhile, the shape of the plastic cap is also detected, so that the final product can meet the use requirements, the efficiency is high, the precision is high, the labor cost is reduced, the spherical surface pressing plate and the spherical surface connecting plate are arranged on the pressing mechanism, the spherical surface connecting plate rotates on the spherical surface pressing plate, so that the upper positioning plate can rotate by a certain angle on the vertical plane, when the plane pressing plate and the limiting piece are in contact, the plane pressing plate can be automatically adjusted to the horizontal state through the spherical surface pressing plate and the spherical surface connecting plate, so that the plane pressing plate can be closely attached to the limiting piece, the large gear and the pin can be normally pressed, the part damage caused by the wiper large gear pressing failure is avoided, and the influence of the vertical installation precision of the mold on the wiper large gear pressing is eliminated.

Description

Technical Field

[0001] This invention relates to the field of automotive parts assembly, specifically to an automated system for assembling and inspecting wiper gear pins. Background Technology

[0002] Currently, the wiper gear, direct-spindle assembly, and plastic cap are generally measured and assembled manually, requiring multiple inspections. Manual assembly and inspection make it difficult to intuitively identify defective products, resulting in low accuracy and fatigue during prolonged operation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a convenient and highly accurate automated system for assembling and testing the large gear pressing pin of a windshield wiper, which addresses the above-mentioned shortcomings.

[0004] To solve the above technical problems, the present invention adopts the following technical solution:

[0005] An automated system for assembling and inspecting wiper gear pins includes a turntable. Along the rotation direction, the turntable is sequentially equipped with a pin feeding mechanism, a gear feeding mechanism, a pressing mechanism, a first height detection mechanism, a plastic cap installation mechanism, a second height detection mechanism, a finished product unloading mechanism, and a finished product appearance inspection mechanism. Multiple clamps are evenly arranged on the inner side of the upper surface edge of the turntable. These clamps are used to hold the pins and gears. The turntable drives the clamps at a constant speed, sequentially passing through the pin feeding mechanism, gear feeding mechanism, pressing mechanism, first height detection mechanism, plastic cap installation mechanism, second height detection mechanism, and finished product unloading mechanism, stopping directly below / in front of these mechanisms for a preset time.

[0006] The large gear feeding mechanism is used to clamp a large gear into the large gear placement slot of the clamp on the turntable directly below at preset intervals.

[0007] The direct pin feeding mechanism is used to transport a direct pin through a hollow air pipe to the direct pin mounting hole of the large gear on the clamp on the turntable in front at preset intervals.

[0008] The pressing mechanism is used to press the large gear onto the straight pin to obtain a semi-finished product;

[0009] The first height detection mechanism is used to detect the height of the pin on the semi-finished product and determine whether the pressing is qualified. If qualified, the plastic cap installation mechanism, the second height detection mechanism, the finished product unloading mechanism and the finished product appearance inspection mechanism will work normally in the next step. If unqualified, the plastic cap installation mechanism, the second height detection mechanism and the finished product appearance inspection mechanism will pause once. The turntable will move the unqualified semi-finished product directly to the bottom of the finished product unloading mechanism, and the finished product unloading mechanism will directly clamp the unqualified semi-finished product into the waste bin.

[0010] The plastic cap mounting mechanism is used to attach plastic caps to semi-finished products to obtain the finished product.

[0011] The second height detection mechanism is used to detect the height of the plastic cap on the finished product. If it is qualified, the finished product unloading mechanism will clamp the finished product to the detection position directly in front of the finished product appearance detection mechanism, and the finished product appearance detection mechanism will work normally. Otherwise, the finished product unloading mechanism will directly clamp the unqualified finished product into the waste bin.

[0012] The finished product appearance inspection mechanism is used to check whether the plastic cap on the finished product at the inspection position is damaged. If it is damaged, the finished product is judged to be unqualified; otherwise, the finished product is judged to be qualified. The finished product unloading mechanism is used to clamp unqualified finished products into the waste bin and qualified finished products into the finished product bin.

[0013] Furthermore, the direct-sell loading mechanism includes a sorting table, a connecting channel, a translation mechanism, a hollow air pipe, and an air pump. The sorting table is used to transport the direct-sells arranged individually in a fixed direction into the connecting channel. A translation block is provided at the front end of the connecting channel, and a direct-sell placement slot is provided on the translation block. The translation mechanism is used to drive the translation block to reciprocate between the front end of the connecting channel and the inlet end of the hollow air pipe, thereby transporting the direct-sells at the front end of the connecting channel to the inlet end of the hollow air pipe one by one. The air pump is used to transport the direct-sells at the inlet end one by one through the hollow air pipe to the direct-sell positioning block of the clamp on the turntable in front.

[0014] Furthermore, the large gear feeding mechanism includes a magazine feeding rack, a first pushing mechanism, a second pushing mechanism, and a clamping mechanism. The magazine feeding rack is used to stack and place large gears. The feeding position is directly below the large gear detection mechanism. The first pushing mechanism is used to push the large gear at the bottom of the magazine feeding rack to the feeding position. The second pushing mechanism is used to push the detected large gear at the feeding position to the area directly below the clamping mechanism. The clamping mechanism is used to clamp the large gear directly below into the large gear placement slot on the fixture on the turntable.

[0015] Furthermore, the finished product appearance inspection mechanism is used to visually capture and identify the plastic cap by circling the inspection position 360°, and to determine whether the finished plastic cap is damaged by comparing it with a standard plastic cap image.

[0016] Furthermore, the pressing head of the pressing mechanism includes an upper positioning plate, a limiting plate, a spherical pressing plate, and a spherical connecting plate. A limiting plate is horizontally arranged above the upper positioning plate and fixedly connected to the output end of an external press. A spherical pressing plate is arranged in the middle of the lower surface of the limiting plate. A spherical connecting plate is arranged on the upper surface of the upper positioning plate and spherically slidably connected to the spherical pressing plate. One of the spherical pressing plate and the spherical connecting plate is concave and the other is convex. The spherical connecting plate slides on the spherical pressing plate, giving the upper positioning plate flexibility in the vertical plane. The four corners of the limiting plate are movably connected to the upper positioning plate through equal-height columns, and there is a gap between the equal-height columns and the upper positioning plate, so that the relative position between the upper positioning plate and the limiting plate is determined by the spherical pressing plate and the spherical connecting plate during pressing. A flat pressing plate for pressing the straight pin and the large gear is arranged on the lower surface of the upper positioning plate.

[0017] The beneficial effects of this invention are as follows: This invention can efficiently and orderly complete the automatic feeding and assembly of the wiper gear, pin, and plastic cap during press-fitting. The entire process is automated, with each step logically and systematically performed. Inspections are conducted after the pin and plastic cap are installed, and the shape of the plastic cap is also inspected to ensure the final product meets usage requirements. It is highly efficient and accurate, reducing labor costs. The press-fitting mechanism employs a self-centering structure. By setting a spherical pressure plate and a spherical connecting plate, the spherical connecting plate rotates on the spherical pressure plate, allowing the upper positioning plate to rotate at a certain angle in the vertical plane. If there is a certain error in the vertical installation accuracy between the upper and lower positioning plates, the spherical pressure plate and the spherical connecting plate can automatically adjust the flat pressure plate to a horizontal state when it contacts the limiting component, ensuring a tight fit between the flat pressure plate and the limiting component. This allows for normal press-fitting of the large gear and pin, preventing damage to parts due to errors in the large gear press-fitting and eliminating the influence of the mold's vertical installation accuracy on the large gear press-fitting. Attached Figure Description

[0018] Figure 1 This is a general schematic diagram of the invention from one angle;

[0019] Figure 2 This is a general schematic diagram of the invention from another angle;

[0020] Figure 3 This is a structural diagram of the direct sales feeding mechanism;

[0021] Figure 4 This is a schematic diagram of the large gear feeding mechanism.

[0022] Figure 5 This is a schematic diagram of the press head structure of the press-fitting mechanism;

[0023] Figure 6 This is a schematic diagram of the assembled finished product.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Turntable; 2. Direct feeding mechanism; 3. Large gear feeding mechanism; 4. Pressing mechanism; 5. First height detection mechanism; 6. Plastic cap installation mechanism; 7. Second height detection mechanism; 8. Finished product unloading mechanism; 9. Finished product appearance inspection mechanism; 10. Large gear; 11. Direct feeding mechanism; 12. Plastic cap; 21. Sorting table; 22. Connecting channel; 23. Translation mechanism; 31. Magazine feeding rack; 32. First pushing mechanism; 33. Second pushing mechanism; 34. Clamping mechanism; 41. Upper positioning plate; 42. Limiting plate; 43. Spherical pressure plate; 44. Spherical connecting plate; 45. Equal height column; 46. Flat pressure plate. Detailed Implementation

[0026] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0027] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0028] like Figure 1-6 As shown, an automated system for press-fitting and assembling a large wiper gear includes a turntable 1. Along the rotation direction, the turntable 1 has a series of mechanisms arranged sequentially: a direct pin feeding mechanism 2, a large gear feeding mechanism 3, a press-fitting mechanism 4, a first height detection mechanism 5, a plastic cap installation mechanism 6, a second height detection mechanism 7, a finished product unloading mechanism 8, and a finished product appearance inspection mechanism 9. Multiple clamps are evenly arranged on the inner side of the upper surface edge of the turntable 1. These clamps are used to hold direct pins 11 and large gears 10. The turntable 1 is used to uniformly drive the clamps through the direct pin feeding mechanism 2, the large gear feeding mechanism 3, the press-fitting mechanism 4, the first height detection mechanism 5, the plastic cap installation mechanism 6, the second height detection mechanism 7, and the finished product unloading mechanism 8, stopping them directly below / in front of these mechanisms for a preset time.

[0029] The large gear feeding mechanism 3 is used to clamp a large gear 10 into the large gear placement slot of the clamp on the turntable 1 directly below at preset intervals.

[0030] The direct pin feeding mechanism 2 is used to transport a direct pin 11 through a hollow air pipe to the direct pin mounting hole of the large gear 10 on the clamp on the turntable 1 in front at preset intervals.

[0031] The pressing mechanism 4 is used to press the large gear 10 onto the straight pin 11 to obtain a semi-finished product;

[0032] The first height detection mechanism 5 is used to detect the height of the pin 11 on the semi-finished product and determine whether the pressing is qualified. If qualified, the plastic cap installation mechanism 6, the second height detection mechanism 7, the finished product unloading mechanism 8 and the finished product appearance inspection mechanism 9 will continue to work normally. If unqualified, the plastic cap installation mechanism 6, the second height detection mechanism 7 and the finished product appearance inspection mechanism 9 will pause once. The turntable 1 will move the unqualified semi-finished product to directly below the finished product unloading mechanism 8, and the finished product unloading mechanism 8 will directly clamp the unqualified semi-finished product into the waste bin.

[0033] The plastic cap mounting mechanism 6 is used to mount the plastic cap 12 onto the semi-finished product to obtain the finished product;

[0034] The second height detection mechanism 7 is used to detect the height of the plastic cap 12 on the finished product. If it is qualified, the finished product unloading mechanism 8 will clamp the finished product to the detection position in front of the finished product appearance detection mechanism 9. The finished product appearance detection mechanism 9 will work normally. Otherwise, the finished product unloading mechanism 8 will directly clamp the unqualified finished product into the waste bin.

[0035] The finished product appearance inspection mechanism 9 is used to inspect whether the plastic cap 12 on the finished product at the inspection position is damaged. If it is damaged, the finished product is judged to be unqualified; otherwise, the finished product is judged to be qualified. The finished product unloading mechanism 8 is used to clamp the unqualified finished products into the waste box and clamp the qualified finished products into the finished product box.

[0036] In one embodiment, the direct-sell loading mechanism 2 includes a sorting table 21, a connecting channel 22, a translation mechanism 23, a hollow air pipe, and an air pump. The sorting table 21 is used to transport the direct-sells 11 arranged in a fixed direction into the connecting channel 22. A translation block is provided at the front end of the connecting channel 22, and a direct-sell placement slot is provided on the translation block. The translation mechanism 23 is used to drive the translation block to move back and forth between the front end of the connecting channel 22 and the inlet end of the hollow air pipe, and to transport the direct-sells 11 at the front end of the connecting channel 22 to the inlet end of the hollow air pipe one by one. The air pump is used to transport the direct-sells 11 at the inlet end one by one through the hollow air pipe to the direct-sell positioning block of the clamp on the turntable 1 directly in front.

[0037] In one embodiment, the large gear feeding mechanism 3 includes a magazine feeding rack 31, a first pushing mechanism 32, a second pushing mechanism 33, and a clamping mechanism 34. The magazine feeding rack 31 is used to stack and place large gears 10. The feeding position is directly below the detection mechanism of the large gear 10. The first pushing mechanism 32 is used to push the large gear 10 at the bottom of the magazine feeding rack 31 to the feeding position. The second pushing mechanism 33 is used to push the detected large gear 10 at the feeding position to the area directly below the clamping mechanism 34. The clamping mechanism 34 is used to clamp the large gear 10 directly below into the large gear placement slot on the fixture on the turntable 1.

[0038] In one implementation, the finished product appearance inspection mechanism 9 is used to surround the finished product 360°, perform visual imaging and identification of the plastic cap 12, and determine whether the finished plastic cap 12 is damaged by comparing it with a standard plastic cap 12 image.

[0039] In one embodiment, the pressing head of the pressing mechanism 4 includes an upper positioning plate 41, a limiting plate 42, a spherical pressing plate 43, and a spherical connecting plate 44. A limiting plate 42, which is fixedly connected to the output end of an external press, is horizontally arranged above the upper positioning plate 41. A spherical pressing plate 43 is arranged in the middle of the lower surface of the limiting plate 42. A spherical connecting plate 44, which is spherically slidably connected to the spherical pressing plate 43, is arranged on the upper surface of the upper positioning plate 41. One of the spherical pressing plate 43 and the spherical connecting plate 44 is concave, and the other is convex. On the surface, the spherical connecting plate 44 slides on the spherical pressure plate 43, giving the upper positioning plate 41 flexibility in the vertical plane. The four corners of the limiting plate 42 are movably connected to the upper positioning plate 41 by equal-height columns 45, and there is a gap between the equal-height columns 45 and the upper positioning plate 41, so that during pressing, the relative position between the upper positioning plate 41 and the limiting plate 42 is determined by the spherical pressure plate 43 and the spherical connecting plate 44. The lower surface of the upper positioning plate 41 is provided with a flat pressure plate 46 for pressing the straight pin 11 and the large gear 10 together.

[0040] The working process of this invention is as follows:

[0041] The direct-sell feeding mechanism delivers a direct-sell through a hollow air pipe to the direct-sell positioning block of the clamp on the turntable in front at preset intervals; the turntable rotates, causing all clamps to move one station.

[0042] The large gear feeding mechanism clamps a large gear into the slot of the large gear placement fixture on the turntable directly below at preset intervals. The turntable rotates, causing all fixtures to move one workstation.

[0043] The pressing mechanism presses the large gear and the straight pin to obtain the finished product;

[0044] As the turntable continues to rotate, moving all the fixtures one station, the height detection mechanism 6 detects the height of the pin on the finished product and determines whether the pressing is qualified. If qualified, the plastic cap installation mechanism, the second height detection mechanism, the finished product unloading mechanism, and the finished product appearance inspection mechanism proceed normally. If unqualified, the plastic cap installation mechanism, the second height detection mechanism, and the finished product appearance inspection mechanism pause once. The turntable then moves the unqualified semi-finished product directly to the bottom of the finished product unloading mechanism, which then clamps the unqualified semi-finished product into the waste bin.

[0045] The plastic cap installation mechanism feeds the plastic caps onto a vibrating table. The vibrating table has a screening notch that allows plastic caps that are not facing downwards to fall through the notch, ensuring that the plastic caps to be fed are facing downwards. The mechanism then clamps and installs the plastic caps one by one onto the semi-finished products on the clamp directly below, thus obtaining the finished products.

[0046] The second height inspection mechanism checks the height of the plastic cap on the finished product. If it is qualified, the clamp moves to the next station and the finished product unloading mechanism clamps the finished product to the inspection position in front of the finished product appearance inspection mechanism. The finished product appearance inspection mechanism works normally. Otherwise, the finished product unloading mechanism directly clamps the unqualified finished product into the waste bin.

[0047] The finished product appearance inspection agency checks whether the plastic cap on the finished product at the inspection position is damaged. If it is damaged, the finished product is judged to be unqualified; otherwise, the finished product is judged to be qualified. The finished product unloading mechanism clamps the unqualified finished product into the scrap box and clamps the qualified finished product into the finished product box.

[0048] This invention can efficiently and systematically complete the automatic feeding and assembly of the wiper gear, pin, and plastic cap during press-fitting. The entire process is automated, with each step logically and systematically executed. After the pin and plastic cap are installed, they are inspected, including the shape of the plastic cap, to ensure the final product meets usage requirements. This invention is highly efficient and accurate, reducing labor costs. The press-fitting mechanism incorporates a spherical pressure plate and a spherical connecting plate. The spherical connecting plate rotates on the spherical pressure plate, allowing the upper positioning plate to rotate at a certain angle in the vertical plane. If there is a slight error in the vertical installation accuracy between the upper and lower positioning plates, the spherical pressure plate and connecting plate automatically adjust the flat pressure plate to a horizontal position when it contacts the limiting component. This ensures a tight fit between the flat pressure plate and the limiting component, allowing for proper press-fitting of the large gear and pin. This prevents damage to parts due to errors in the large gear press-fitting process and eliminates the influence of the mold's vertical installation accuracy on the large gear press-fitting.

[0049] The above description provides examples of the preferred embodiments of the present invention. Parts not detailed herein are common knowledge to those skilled in the art. The scope of protection of the present invention is determined by the claims. Any equivalent modifications based on the technical teachings of the present invention are also within the scope of protection of the present invention.

Claims

1. An automated system for assembling and inspecting the large gear pressing pins of a windshield wiper, characterized in that, The device includes a turntable, on the outer periphery of which, along the direction of rotation, are sequentially arranged a direct pin feeding mechanism, a large gear feeding mechanism, a pressing mechanism, a first height detection mechanism, a plastic cap installation mechanism, a second height detection mechanism, a finished product unloading mechanism, and a finished product appearance inspection mechanism. Multiple clamps are evenly arranged on the inner side of the upper surface edge of the turntable. These clamps are used to hold the direct pins and large gears. The turntable is used to uniformly drive the clamps to sequentially pass through the direct pin feeding mechanism, the large gear feeding mechanism, the pressing mechanism, the first height detection mechanism, the plastic cap installation mechanism, the second height detection mechanism, and the finished product unloading mechanism, stopping them directly below / in front of these mechanisms for a preset time. The large gear feeding mechanism is used to clamp a large gear into the large gear placement slot of the clamp on the turntable directly below at preset intervals. The direct pin feeding mechanism is used to transport a direct pin through a hollow air pipe to the direct pin mounting hole of the large gear on the clamp on the turntable in front at preset intervals. The pressing mechanism is used to press the large gear onto the straight pin to obtain a semi-finished product; The first height detection mechanism is used to detect the height of the pin on the semi-finished product and determine whether the pressing is qualified. If qualified, the plastic cap installation mechanism, the second height detection mechanism, the finished product unloading mechanism and the finished product appearance inspection mechanism will work normally in the next step. If unqualified, the plastic cap installation mechanism, the second height detection mechanism and the finished product appearance inspection mechanism will pause once. The turntable will move the unqualified semi-finished product directly to the bottom of the finished product unloading mechanism, and the finished product unloading mechanism will directly clamp the unqualified semi-finished product into the waste bin. The plastic cap mounting mechanism is used to attach plastic caps to semi-finished products to obtain the finished product. The second height detection mechanism is used to detect the height of the plastic cap on the finished product. If it is qualified, the finished product unloading mechanism will clamp the finished product to the detection position directly in front of the finished product appearance detection mechanism, and the finished product appearance detection mechanism will work normally. Otherwise, the finished product unloading mechanism will directly clamp the unqualified finished product into the waste bin. The finished product appearance inspection mechanism is used to check whether the plastic cap on the finished product at the inspection position is damaged. If it is damaged, the finished product is judged to be unqualified; otherwise, the finished product is judged to be qualified. The finished product unloading mechanism is used to clamp unqualified finished products into the waste bin and qualified finished products into the finished product bin. The direct-sell loading mechanism includes a sorting table, a connecting channel, a translation mechanism, a hollow air pipe, and an air pump. The sorting table is used to transport the direct-sells arranged in a fixed direction into the connecting channel. A translation block is provided at the front end of the connecting channel, and a direct-sell placement slot is provided on the translation block. The translation mechanism is used to drive the translation block to move back and forth between the front end of the connecting channel and the inlet end of the hollow air pipe, and to transport the direct-sells at the front end of the connecting channel to the inlet end of the hollow air pipe one by one. The air pump is used to transport the direct-sells at the inlet end one by one through the hollow air pipe to the direct-sell positioning block of the clamp on the turntable in front. The pressing head of the pressing mechanism includes an upper positioning plate, a limiting plate, a spherical pressing plate, and a spherical connecting plate. A limiting plate is horizontally arranged above the upper positioning plate and fixedly connected to the output end of an external press. A spherical pressing plate is arranged in the middle of the lower surface of the limiting plate. A spherical connecting plate is arranged on the upper surface of the upper positioning plate and spherically slidably connected to the spherical pressing plate. One of the spherical pressing plate and the spherical connecting plate is concave and the other is convex. The spherical connecting plate slides on the spherical pressing plate, giving the upper positioning plate flexibility in the vertical plane. The four corners of the limiting plate are movably connected to the upper positioning plate by equal-height columns, and there is a gap between the equal-height columns and the upper positioning plate. During pressing, the relative position between the upper positioning plate and the limiting plate is determined by the spherical pressing plate and the spherical connecting plate. A flat pressing plate for pressing the straight pin and the large gear is arranged on the lower surface of the upper positioning plate.

2. The automated assembly and testing system for the large wiper gear pressing pin as described in claim 1, characterized in that, The large gear feeding mechanism includes a magazine feeding rack, a first pushing mechanism, a second pushing mechanism, and a clamping mechanism. The magazine feeding rack is used to stack and place large gears. The feeding position is directly below the large gear feeding mechanism. The first pushing mechanism is used to push the large gear at the bottom of the magazine feeding rack to the feeding position. The second pushing mechanism is used to push the large gear at the feeding position after detection to directly below the clamping mechanism. The clamping mechanism is used to clamp the large gear directly below into the large gear placement slot on the fixture on the turntable.

3. The automated assembly and testing system for the large wiper gear pin as described in claim 1, characterized in that, The finished product appearance inspection mechanism is used to visually photograph and identify the plastic caps around the inspection position in a 360° circle, and to determine whether the finished plastic caps are damaged by comparing them with standard plastic cap images.

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