Automatic coloring method and device for gear pair contact detection

Abstract

The invention relates to the technical field of gear pair contact detection, in particular to an automatic coloring method and device for gear pair contact detection, the device comprises a slewing mechanism and a color developing agent supply device, the slewing mechanism is provided with a working face moving along a slewing path, a plurality of dyeing teeth are arranged on the working face along the direction of the slewing path, and the color developing agent supply device is arranged on the working face. The color developing agent supply device is provided with a plurality of dyeing teeth, the dyeing teeth are used for being meshed and contacted with a gear to be painted for painting, the color developing agent supply device is connected with a color developing agent conveying channel, and the color developing agent conveying channel is respectively connected with the dyeing teeth. Due to the fact that the automatic painting device is driven by the gear pair to move in the meshing mode, the gear can be painted without an additional driving device, compared with manual painting, the painting efficiency can be effectively improved, and the labor intensity can be reduced; and each tooth of the gear to be painted can be in contact with the dyed tooth for effective painting, so that the problem of missing painting is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of gear pair contact detection, and more particularly to an automatic coloring method and device for gear pair contact detection. Background Art

[0002] During the assembly of an automotive transmission, the installation position relationship of each gear pair is crucial, directly impacting the transmission's performance. Incorrect gear pair installation positions, such as when the gear centers are too close or too far apart, can lead to abnormal gear contact, impacting transmission performance. Currently, contact testing is used to evaluate contact status. First, a color developer is applied to the driving gear with a brush. The driving gear is then rotated manually or by a motor, causing it to mesh with the driven gear. The color developer is then transferred to the driven gear. The gear contact status is then evaluated by measuring the size of the color-developed area on the driven gear or by evaluating changes in the color-developed area on the driving gear.

[0003] When conducting contact experiments, gears are generally painted manually for testing. However, the workload of manual coloring is huge, especially when it comes to testing and evaluating mass-produced gears with multiple teeth. The coating efficiency is low, and the manual coating method cannot meet the requirements of mass production. At the same time, manual coloring may also have the problem of missing coating, resulting in some tooth surfaces not being completely covered, affecting the accuracy of the test. For some closed gearboxes, for the inspection after the gears are installed, about half of the gears will be hidden in the gearbox. Therefore, when applying the color developer, the exposed gears at the top are more convenient to color, and the gears at the bottom need to be manually moved to a position with sufficient space before they can be colored. When the gear pair is driven by turning on the motor, due to the inertia of the rotation, the angle of rotation of the gear pair cannot be well controlled, resulting in low efficiency and inconvenience in manual coloring. Summary of the Invention

[0004] In order to overcome the problems of low efficiency, high labor intensity and missing paint in manual coloring for gear contact detection in the above-mentioned prior art, a first aspect of the present invention provides an automatic coloring device for gear pair contact detection.

[0005] A second aspect of the present invention provides an automatic coloring method for gear pair contact detection.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: an automatic coloring device with gear pair contact detection, comprising: a rotating mechanism and a colorant supply device, the rotating mechanism having a working surface that moves along a rotating path, a plurality of dyeing teeth arranged on the working surface along the direction of the rotating path, each of the dyeing teeth being used to engage with and contact the gear to be colored for coloring, the colorant supply device being connected to a colorant delivery channel, and the colorant delivery channel being respectively connected to each of the dyeing teeth.

[0007] In the technical solution of the present invention, a developer supply device delivers developer to each dyeing tooth through a developer delivery channel. The dyeing tooth then engages with the gear to be painted, applying color. Because the automatic coloring device is driven by the meshing motion of the gear pair, no additional drive device is required to paint the gears. This significantly improves painting efficiency and reduces labor intensity compared to manual painting. Furthermore, because each dyeing tooth sequentially engages with the gear to be painted, each tooth of the gear to be painted is effectively painted, eliminating the problem of missing paint.

[0008] Furthermore, the dyeing teeth include a tooth-shaped base and a dyeing layer, the tooth-shaped base has a first surface for meshing and a non-meshing second surface, a colorant flow channel is opened inside the tooth-shaped base, a colorant outlet is provided on the first surface, and a colorant inlet is provided on the second surface, the colorant outlet and the colorant inlet are both connected to the colorant flow channel, and the dyeing layer is coated on the first surface.

[0009] In this solution, the developer enters the developer flow channel from the developer inlet of the toothed base, then flows out from the developer outlet to the second surface, and is colored by contacting the gear through the dyeing layer. The first surface is a non-meshing surface, so it will not affect the injection of the developer.

[0010] Furthermore, the developer flow channel includes a main channel and multiple branch channels located inside the toothed base, each branch channel is respectively connected to the main channel, the main channel is connected to the developer inlet, and each branch channel is respectively connected to the developer outlet.

[0011] In this solution, the developer is evenly distributed onto the dyed teeth through the main flow channel and the branch flow channels, so that the gears can be fully colored.

[0012] Furthermore, the dyeing layer is made of a flexible porous material.

[0013] In this solution, the flexible porous material can absorb the developer to facilitate coloring of the gear. At the same time, the flexible porous material can produce a certain deformation when in contact with the gear, and can fully contact with the gear.

[0014] Furthermore, a mounting piece is connected to the working surface, and an adjustment groove is formed on the mounting piece extending along the direction of the rotation path. The dyeing teeth are connected to the adjustment groove and can adjust the installation position along the direction of the rotation path.

[0015] In this solution, by adjusting the installation position of each dyeing tooth, the automatic coloring device can be applied to the coloring of gear pairs with different parameters, and each dyeing tooth is correctly meshed with the gear.

[0016] Furthermore, the dyeing teeth are detachably connected to the working surface.

[0017] In this solution, the dyeing teeth with different parameters can be disassembled and replaced to match the dyeing teeth with the gear pair to be tested, and it is convenient to repair and replace the failed dyeing teeth.

[0018] Furthermore, the colorant delivery channel includes a colorant material main pipe, a colorant material sub-pipe and a central rotary joint, one end of the colorant material main pipe is connected to the colorant supply device, the other end of the colorant material main pipe is connected to the inlet of the central rotary joint, one end of each colorant material sub-pipe is respectively connected to each outlet of the central rotary joint, and the other end of each colorant material sub-pipe is respectively connected to each dyeing tooth.

[0019] In this solution, the main colorant material pipe and the auxiliary colorant material pipe are connected by a central rotary joint, which can rotate with the rotary mechanism to prevent the main colorant material pipe and the auxiliary colorant material pipes from being entangled and knotted.

[0020] Furthermore, the rotating mechanism includes a frame, rollers and a rotating belt, a pair of the rollers are rotatably connected to the two ends of the frame respectively, the rotating belt is sleeved on the pair of rollers, and the outer side surface of the rotating belt is the working surface.

[0021] In this solution, the rotary belt is rotated by connecting the roller to the frame. When the dyeing tooth is engaged with the gear pair to be tested, the rotary belt and the roller are driven to rotate, and the coloring can be performed without an additional driving mechanism.

[0022] Furthermore, the frame includes an outer frame, a connecting rod and a rotating shaft, both ends of the outer frame are rotatably connected to the rotating shaft, the middle of the outer frame is fixedly connected to the connecting rod, the roller is installed on the rotating shaft, and the central swivel joint is installed on the connecting rod.

[0023] In this solution, a rotating shaft is provided to facilitate installation of the reloading belt, and a connecting rod is provided to facilitate installation of the swivel joint.

[0024] The present invention also provides an automatic coloring method for gear pair contact detection, which is implemented using an automatic coloring device and includes the following steps:

[0025] S1: The automatic coloring device is set at the corresponding position of the gear pair to be tested, and the position of each coloring tooth is adjusted so that the coloring tooth can mesh with the gear to be colored.

[0026] S2: The developer supply device delivers the developer to each stained tooth.

[0027] S3: Start the gear pair to be tested, and the gear pair is operated to drive the dyed teeth to continuously mesh, thereby coloring the gear to be colored.

[0028] S4: Keep the gear pair running until the painting is completed.

[0029] In this solution, the rotation of the gear pair itself is used to drive the automatic coloring device to rotate, and the colorant is transferred to the gear through the dyeing teeth, thereby realizing automatic coloring of the gear. Compared with manual coloring, this method is more efficient, can effectively reduce labor intensity, and reduce the problem of missing paint.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. In the present invention's automatic coloring device with gear pair contact detection, a developer supply device delivers developer to each dyeing tooth through a developer delivery channel. The dyeing tooth engages and contacts the gear to be colored, causing coloring. Because the automatic coloring device is driven by the gear pair, it can color the gears without the need for an additional drive device. This significantly improves coloring efficiency and reduces labor intensity compared to manual coloring. Furthermore, because each dyeing tooth sequentially engages with the gear to be colored, each tooth of the gear to be colored is effectively contacted and colored, eliminating the problem of missing color.

[0032] 2. The automatic coloring device for gear pair contact detection of the present invention has an adjustable position of the dyeing teeth along the direction of the rotation path, so that the automatic coloring device can be applied to the coloring of gear pairs with different parameters. Each dyeing tooth is detachable and replaceable, which can not only replace the dyeing teeth to match the gear pair to be tested, but also facilitate the repair and replacement of failed dyeing teeth.

[0033] 3. The automatic coloring device with gear pair contact detection of the present invention adopts a central rotary joint to respectively connect the main colorant material pipe and each colorant material auxiliary pipe, and transports the colorant to each rotating dyeing tooth, which can prevent the main colorant material pipe and each colorant material auxiliary pipe from being entangled and knotted.

[0034] 4. The automatic coloring device for gear pair contact detection of the present invention is provided with a main flow channel and multiple branch flow channels in the dyeing tooth, which can evenly distribute the color developer to the dyeing tooth surface, thereby fully coloring the gear.

[0035] 5. The automatic coloring method for gear pair contact detection of the present invention utilizes the rotation of the gear pair itself to drive the automatic coloring device to rotate, and transfers the color developer to the gear through the dyeing teeth, thereby realizing automatic coloring of the gear. Compared with manual coloring, this method is more efficient, can effectively reduce labor intensity, and reduce the problem of missing coloring. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1It is a schematic diagram of the overall structure of the automatic coloring device for gear pair contact detection of the present invention;

[0037] Figure 2 This is a bottom view of the stained tooth;

[0038] Figure 3 yes Figure 2 AA section view of the middle stained tooth;

[0039] Figure 4 yes Figure 3 BB cross-section of a stained tooth;

[0040] Figure 5 yes Figure 3 CC cross-sectional view of a stained tooth;

[0041] Figure 6 yes Figure 3 DD cross-sectional view of a stained tooth;

[0042] Figure 7 yes Figure 5 Enlarged view of point E of the stained tooth;

[0043] Figure 8 It is the front view of the rotary mechanism;

[0044] Figure 9 yes Figure 8 FF section view of the rotary mechanism;

[0045] Figure 10 yes Figure 8 A partial enlarged view of the G position of the rotary mechanism;

[0046] Figure 11 It is a schematic diagram of the relative position relationship between the automatic coloring device and the gear pair to be tested;

[0047] Figure 12 It is a flow chart of the automatic coloring method for gear pair contact detection of the present invention.

[0048] In the accompanying drawings: 1. Rotating mechanism; 11. Frame; 111. Outer frame; 112. Connecting rod; 113. Rotating shaft; 12. Roller; 13. Rotating belt; 131. Working surface; 14. Mounting part; 141. Adjusting groove; 2. Developer supply device; 3. Dyeing tooth; 31. Tooth-shaped base; 311. First surface; 312. Second surface; 313. Main flow channel; 314. Branch flow channel; 315. Developer outlet; 316. Developer inlet; 32. Dyeing layer; 4. Developer conveying channel; 41. Developer material main pipe; 42. Developer material auxiliary pipe; 43. Central rotary joint; 100. Driving gear; 200. Driven gear. DETAILED DESCRIPTION

[0049] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0050] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0051] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0052] Example 1

[0053] refer to Figures 1 to 11 This embodiment discloses an automatic coloring device with gear pair contact detection, including a rotary mechanism 1 and a colorant supply device 2. The rotary mechanism 1 has a working surface 131 that moves along a rotary path. A plurality of dyeing teeth 3 are arranged on the working surface 131 along the direction of the rotary path. Each dyeing tooth 3 is used to engage with a gear to be colored for coloring. The colorant supply device 2 is connected to a colorant delivery channel 4, which is respectively connected to each dyeing tooth 3.

[0054] In this embodiment, the developer supply device 2 delivers developer to each dyeing tooth 3 via the developer delivery channel 4. The dyeing tooth 3 then engages with the gear to be painted, thereby applying color. Because the automatic coloring mechanism is driven by the meshing motion of the gear pair, no additional drive device is required to paint the gears. This significantly improves painting efficiency and reduces labor intensity compared to manual painting. Furthermore, because each dyeing tooth 3 sequentially engages with the gear to be painted, each tooth of the gear to be painted is effectively painted, eliminating the problem of missing paint.

[0055] The turning path can be in the shape of a racetrack, a circle or other closed loop. Figure 1 and Figure 8In this embodiment, the rotating path is track-shaped, with both the upper and lower sides of the path moving along straight paths. The dyeing teeth 3 on the lower side of the rotating path mesh with the gear pair, similar to the meshing relationship between a gear and a rack. The rotation of the gear pair drives the rotating mechanism 1, causing each dyeing tooth 3 to sequentially mesh with the gear on the upper end of the gear pair to be colored.

[0056] In other embodiments, the rotation path may be circular, and the meshing relationship may be similar to that between gears. In other embodiments, the automatic coloring device may be installed at other positions of the gear pair, such as to the side or below, so that the dyeing tooth 3 can mesh with a gear of the gear pair.

[0057] In this embodiment, the developer supply device 2 can be a developer pump that can pump the developer into each dyeing tooth 3 through the developer delivery channel 4, thereby coloring the gear. During testing, the developer is delivered to each dyeing tooth 3 by setting a reasonable pressure.

[0058] During the initial batch test, adjust the pump pressure to achieve the appropriate developer thickness. Generally, the developer is applied after all tooth surfaces of the gear being tested are meshed with the dyed teeth 3. To improve the coating effect, multiple meshing cycles can be performed.

[0059] During the test, the gear directly meshing with the dye tooth 3 is designated Gear A, and the other gear in the gear pair is designated Gear B. If the gear pair contact test results are evaluated based on the contact spots on Gear B, the gear pair can be operated continuously for multiple revolutions during the test, driving the automatic coloring device to continuously operate for multiple revolutions and maintaining a continuous supply of developer to the dye tooth 3. If the gear pair contact test results are evaluated based on the areas and shapes of developer detachment on Gear A, the automatic coloring device will be stopped after each tooth surface of Gear A has meshed once, meaning that only one revolution of Gear A will be colored.

[0060] refer to Figures 2 to 4 The dyeing tooth 3 includes a tooth-shaped base 31 and a dyeing layer 32. The tooth-shaped base 31 has a first surface 311 for meshing and a second surface 312 for non-meshing. A colorant flow channel is opened inside the tooth-shaped base 31. A colorant outlet 315 is provided on the first surface 311, and a colorant inlet 316 is provided on the second surface 312. The colorant outlet 315 and the colorant inlet 316 are both connected to the colorant flow channel, and the dyeing layer 32 is coated on the first surface 311.

[0061] In this embodiment, the developer enters the developer flow channel from the developer inlet 316 of the toothed base 31, then flows out from the developer outlet 315 to the second surface 312, and contacts the gears through the dye layer 32 to be colored. The first surface 311 is a non-meshing surface and therefore does not affect the injection of the developer.

[0062] It will be appreciated that, because the first surface 311 of the tooth-shaped base 31 is coated with the dye layer 32, the first meshing surface 311 of the tooth-shaped base 31 may not directly contact the gear, but rather engage with the gear indirectly through the dye layer 32. The second surface 312 may include the bottom surface where the dye tooth 3 is mounted, as well as other non-meshing side surfaces. For example, in this embodiment, the developer inlet 316 is located in the middle of the bottom surface of the dye tooth 3. The shape of the tooth-shaped base 31 can be adjusted according to the gear tooth profile to be tested.

[0063] refer to Figures 2 to 4 The developer flow path includes a main channel 313 located within the tooth-shaped base 31 and multiple branch channels 314. Each branch channel 314 is connected to the main channel 313, which is connected to a developer inlet 316. Each branch channel 314 is connected to a developer outlet 315. The main channel 313 and the branch channels 314 evenly distribute the developer to the dyeing teeth 3, allowing the gears to be fully colored.

[0064] Specifically, Figure 4 Taking the illustrated direction as an example, the developer inlet 316 is located on the second surface 312 at the top of the dyeing tooth 3. The main channel 313 is located laterally within the dyeing tooth 3, slightly above the main channel 3. The developer inlet 316 communicates with the center of the main channel 313. Multiple branch channels 314 are vertically distributed below the main channel 313. Each branch channel 314 further extends laterally or diagonally into more branch channels 314. The ends of each branch channel 314 extend to the first surface 311 and communicate with the developer outlet 315. The cross-sectional areas of the main channel 313 and each branch channel 314 can vary. For example, the main channel 313 can have a larger cross-sectional area, while the branch channels 314 near the developer outlet 315 have a smaller cross-sectional area. This ensures a stable developer flow rate and velocity. Furthermore, increasing the number of branch channels 314 allows for a uniform distribution of the developer on the first surface 311. In some other embodiments, for dyeing teeth 3 with different tooth shapes, the directions and distribution forms of the main channel 313 and the branch channels 314 can be adjusted, so as to ensure that the color developer is fully distributed on the surface of the dyeing tooth 3.

[0065] The dyeing layer 32 is made of a flexible porous material. The flexible porous material can absorb the developer to facilitate coloring the gear. At the same time, the flexible porous material can produce a certain deformation when in contact with the gear, and can fully contact the gear. In this embodiment, the dyeing layer 32 is made of sponge. The surface of the dyeing tooth 3 adopts a flexible dyeing layer 32, which can withstand a certain pressure during the meshing process, can ensure the transfer effect, and will not damage the gear surface while coloring the gear. Since the dyeing layer 32 has a certain flexibility, the meshing between the dyeing tooth 3 and the gear does not have to fully meet the meshing requirements of the mechanical design, such as the module, pressure angle, etc., and there can be deviations. It is sufficient to ensure that the dyeing layer 32 of the dyeing tooth 3 is in full contact with the gear. The purpose is to fully color the tooth surface of the gear.

[0066] refer to Figures 8 to 10 The working surface 131 is connected to a mounting member 14. The mounting member 14 extends along the rotational path and has an adjustment slot 141. The dyeing teeth 3 are connected to the adjustment slot 141 and can be adjusted along the rotational path. By adjusting the mounting position of each dyeing tooth 3, the automatic coloring device can be adapted to color gear pairs with different parameters, ensuring that each dyeing tooth 3 and gear meshes correctly. In this embodiment, the dyeing teeth 3 are detachably connected to the mounting member 14 on the working surface 131. The dyeing teeth 3 with different parameters can be removed and replaced to match the gear pair to be tested, while also facilitating the repair and replacement of failed dyeing teeth 3.

[0067] Specifically, the mounting member 14 can be arranged on both sides of the rotation path direction, and a threaded hole is provided on each side of the bottom of the dyeing tooth 3, which is passed through the adjustment groove 141 by a bolt and is threadedly connected to the dyeing tooth 3. The dyeing tooth 3 can be removed and replaced by unscrewing the bolt, and the position of the dyeing tooth 3 connected to the adjustment groove 141 by screwing the bolt can be adapted to the coloring requirements of different gear pairs. The number of dyeing teeth 3 can be selected according to actual needs. When testing the gear pair with the same parameters on the production line, there is no need to adjust the dyeing tooth 3, so that the coloring test can be carried out continuously. It can be understood that when in use, the dyeing tooth 3 is adjusted so that it meets the conditions for meshing with the gear pair, or the tooth shape and position of the dyeing tooth 3 can meet the conditions for continuous meshing with the gear, so as to have a better coloring effect.

[0068] refer to Figure 1The developer delivery channel 4 includes a main developer pipe 41, a subsidiary developer pipe 42, and a central rotary joint 43. One end of the main developer pipe 41 is connected to the developer supply device 2, and the other end is connected to the inlet of the central rotary joint 43. One end of each subsidiary developer pipe 42 is connected to an outlet of the central rotary joint 43, and the other end of each subsidiary developer pipe 42 is connected to a dyeing tooth 3. The main developer pipe 41 and the subsidiary developer pipe 42 are connected by the central rotary joint 43, which rotates with the rotary mechanism 1 to prevent the main developer pipe 41 and the subsidiary developer pipes 42 from becoming entangled.

[0069] In this embodiment, the central swivel joint 43 can be located in the center of the swivel mechanism 1. This ensures a more even distance from the central swivel joint 43 to each dyeing tooth 3, particularly for a circular swivel path. The central axis of rotation of the central swivel joint 43 can be parallel to the central axis of rotation of the swivel mechanism 1. This allows the central swivel joint 43 to rotate synchronously with the swivel mechanism 1, preventing tangling or knotting.

[0070] Example 2

[0071] refer to Figures 1 to 11 This embodiment is similar to embodiment 1, except that in this embodiment, further reference is made to Figure 8 and Figure 9 The rotary mechanism 1 includes a frame 11, rollers 12, and a rotary belt 13. A pair of rollers 12 are rotatably connected to the two ends of the frame 11, and the rotary belt 13 is sleeved on the pair of rollers 12. The outer side of the rotary belt 13 is a working surface 131. In this embodiment, the rollers 12 are rotatably connected to the frame 11 to facilitate the rotation of the rotary belt 13. When the dyeing tooth 3 is engaged with the gear pair to be tested, the rotary belt 13 and the rollers 12 are driven to rotate, and the dyeing can be performed without an additional drive mechanism. In actual use, the frame 11 can be fixed to an external fixture, so that the rotary mechanism 1 is installed in a suitable position so that the dyeing tooth 3 can be engaged with the gear pair.

[0072] In this embodiment, the rotating belt 13 can be made of a steel belt, which has good corrosion resistance. Multiple mounting members 14 are continuously fixed to the steel belt, each of which has an adjustment slot 141. The adjustment slot 141 can be a waist-shaped hole extending along the direction of rotation. The mounting members 14 can be made of thin iron sheet or plastic, capable of withstanding certain distortion and deformation and restoring themselves, allowing the mounting members 14 located on the roller 12 to follow the curved deformation of the roller 12. The roller 12 can be a steel wheel, which also has good corrosion resistance.

[0073] In other embodiments, the rotary mechanism 1 can adopt other transmission forms, such as chain transmission. The rotary belt 13 adopts a conveyor chain, the roller 12 adopts a sprocket, and the mounting member 14 can be fixed on the outer surface of the conveyor chain without affecting the operation of the conveyor chain.

[0074] refer to Figure 9 The frame 11 includes an outer frame 111, a connecting rod 112 and a rotating shaft 113. The two ends of the outer frame 111 are respectively rotatably connected to the rotating shaft 113. The middle of the outer frame 111 is fixedly connected to the connecting rod 112. The roller 12 is mounted on the rotating shaft 113, and the central rotary joint 43 is mounted on the connecting rod 112. In this embodiment, the rotating shaft 113 is provided to facilitate the installation of the reloading belt, and the connecting rod 112 is provided to facilitate the installation of the rotary joint. Figure 9 Taking the direction shown as an example, the upper and lower sides are horizontally provided with outer frames 111, which connect the entire frame 11. A rotating shaft 113 is vertically provided at both ends of the outer frame 111, and both ends of the rotating shaft 113 are rotatably connected to the outer frame 111 through bearings.

[0075] Example 3

[0076] refer to Figure 12 as well as Figures 1 to 11 This embodiment discloses an automatic coloring method for gear pair contact detection, which is implemented using an automatic coloring device. The automatic coloring method includes the following steps:

[0077] S1: The automatic coloring device is set at the corresponding position of the gear pair to be tested, and the position of each dyeing tooth 3 is adjusted so that the dyeing tooth 3 can mesh with the gear to be colored.

[0078] S2: The developer supply device 2 delivers the developer to each stained tooth 3 .

[0079] S3: Start the gear pair to be tested, and the gear pair is operated to drive the dyeing teeth 3 to continuously mesh, thereby dyeing the gear to be dyed.

[0080] S4: Keep the gear pair running until the painting is completed.

[0081] In step S1 , the corresponding position refers to a position where the dyeing tooth 3 can mesh with a gear of the gear pair. For example, in this embodiment, the automatic coloring device is located above the gear.

[0082] Before step S2, the following step may be included: connecting the developer supply device 2 and each developer delivery channel 4 to each dyeing tooth 3. The developer delivery channel 4 includes a developer main pipe 41, multiple developer subsidiary pipes 42, and a central rotary joint 43. The developer main pipe 41 is connected to the developer supply device 2 and to the inlet of the central rotary joint 43. Then, each developer subsidiary pipe 42 is connected to each dyeing tooth 3 through the outlet of the central rotary joint 43.

[0083] In step S2 , the developer supply device 2 is a developer pump, which is started and maintained at a certain pressure until the developer seeps out of the dye layer 32 of the dyed tooth 3 .

[0084] In step S3, the gear pair includes a driving gear 100 and a driven gear 200. Starting the gear pair to be tested rotates the driving gear 100, which in turn drives the driven gear 200. The dyeing teeth 3 mesh with the driving gear 100 and color it, which then transfers the developer to the driven gear 200.

[0085] In step S4, the completion of coloring means: 1) if the dyeing tooth 3 is engaged with the driving gear 100, the contact state is evaluated based on the contact spots on the driven gear 200, and during the detection process, the gear pair is kept in continuous operation for multiple turns, driving the automatic coloring device to continuously operate for multiple turns, and the color developer on the dyeing tooth 3 is kept continuously supplied until the color developer on the driving gear 100 is fully transferred to the driven gear 200; 2) if the dyeing tooth 3 is engaged with the driving gear 100, the contact state is evaluated based on the area and shape of the color developer falling off on the driven gear 200, and the process is completed after the driving gear 100 and the dyeing tooth 3 of the automatic coloring device are engaged for one turn.

[0086] The batch testing process also includes step S5: removing the gear pair that has been tested, replacing it with a gear pair to be tested, and repeating the above steps S3 to S4.

[0087] In this embodiment, the rotation of the gear pair itself is used to drive the automatic coloring device to rotate, and the color developer is transferred to the gear through the dyeing teeth 3, thereby realizing automatic coloring of the gear. Compared with manual coloring, this method is more efficient, can effectively reduce labor intensity, and reduce the problem of missing coloring.

[0088] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Automatic coloring device for gear pair contact detection, characterized by: The invention comprises a rotary mechanism (1) and a developer supply device (2), wherein the rotary mechanism (1) has a working surface (131) that moves along a rotary path, and a plurality of dyeing teeth (3) are arranged on the working surface (131) along the direction of the rotary path, and each of the dyeing teeth (3) is used to engage with a gear to be painted for painting, and the developer supply device (2) is connected to a developer delivery channel (4), and the developer delivery channel (4) is respectively connected to each of the dyeing teeth (3).

2. The automatic coloring device for gear pair contact detection according to claim 1, characterized in that: The dyeing tooth (3) comprises a tooth-shaped base (31) and a dyeing layer (32); the tooth-shaped base (31) has a first surface (311) for meshing and a second surface (312) for non-meshing; a developer flow channel is provided inside the tooth-shaped base (31); a developer outlet (315) is provided on the first surface (311); a developer inlet (316) is provided on the second surface (312); the developer outlet (315) and the developer inlet (316) are both connected to the developer flow channel; and the dyeing layer (32) is coated on the first surface (311).

3. The automatic coloring device for gear pair contact detection according to claim 2, characterized in that: The developer flow channel comprises a main channel (313) and a plurality of branch channels (314) located inside the toothed base (31), each of the branch channels (314) being respectively connected to the main channel (313), the main channel (313) being connected to the developer inlet (316), and each of the branch channels (314) being respectively connected to the developer outlet (315).

4. The automatic coloring device for gear pair contact detection according to claim 2, characterized in that: The dyeing layer (32) is made of a flexible porous material.

5. The automatic coloring device for gear pair contact detection according to claim 1, characterized in that: A mounting member (14) is connected to the working surface (131), and the mounting member (14) is provided with an adjustment groove (141) extending along the direction of the rotation path. The dyeing tooth (3) is connected to the adjustment groove (141) and can adjust the installation position along the direction of the rotation path.

6. The automatic coloring device for gear pair contact detection according to claim 1, characterized in that: The dyeing teeth (3) are detachably connected to the working surface (131).

7. The automatic coloring device for gear pair contact detection according to claim 1, characterized in that: The colorant delivery channel (4) includes a colorant material main pipe (41), a colorant material auxiliary pipe (42) and a central rotary joint (43), one end of the colorant material main pipe (41) is connected to the colorant supply device (2), the other end of the colorant material main pipe (41) is connected to the inlet of the central rotary joint (43), one end of each of the colorant material auxiliary pipes (42) is respectively connected to each outlet of the central rotary joint (43), and the other end of each of the colorant material auxiliary pipes (42) is respectively connected to each of the dyeing teeth (3).

8. The automatic coloring device for gear pair contact detection according to claim 1, characterized in that: The rotary mechanism (1) comprises a frame (11), rollers (12) and a rotary belt (13); a pair of rollers (12) are rotatably connected to the two ends of the frame (11), the rotary belt (13) is sleeved on the pair of rollers (12), and the outer side surface of the rotary belt (13) is the working surface (131).

9. The automatic coloring device for gear pair contact detection according to claim 8, characterized in that: The frame (11) comprises an outer frame (111), a connecting rod (112) and a rotating shaft (113); both ends of the outer frame (111) are rotatably connected to the rotating shaft (113); the middle of the outer frame (111) is fixedly connected to the connecting rod (112); the roller (12) is mounted on the rotating shaft (113); and the central rotary joint (43) is mounted on the connecting rod (112).

10. Automatic coloring method for gear pair contact detection, characterized by: The method is implemented by using the automatic coloring device described in any one of claims 1 to 9, and includes: setting the automatic coloring device at the corresponding position of the gear pair to be tested, adjusting the position of each dyeing tooth (3) so that the dyeing tooth (3) can mesh with the gear to be colored; delivering the developer to each dyeing tooth (3) through the developer supply device (2); starting the gear pair to be tested, and driving each dyeing tooth (3) to continuously mesh through the operation of the gear pair to color the gear to be colored; and keeping the gear pair running until the coloring is completed.

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