Coating equipment and process for machining of cardan shaft bearings

Abstract

This invention relates to the field of surface nylon coating technology, and more particularly to a coating equipment and process for universal joint bearing processing. The equipment includes a coating mechanism, comprising a switching component for replacing the nylon powder used in coating, and a screening component installed inside the switching component. The coating mechanism can periodically and automatically replace nylon powder with a predetermined minimum fluidity performance with clean nylon powder having the predetermined fluidity performance. During the replacement process, only the clean nylon powder needs to be transferred to the processing line, while the nylon powder with low fluidity performance is automatically recycled. This process is relatively fast, greatly reducing downtime caused by replacing nylon powder. Furthermore, during the transfer process, the nylon powder with low fluidity performance is vibrated, screened, and collected. This process takes place inside the moving box, reducing the possibility of large amounts of nylon powder entering the air, thus minimizing material waste and air pollution.

Description

Technical Field

[0001] This invention relates to the field of surface nylon coating technology, and in particular to a coating equipment and process for processing universal joint bearings. Background Technology

[0002] Universal joint bearings are key components in automotive and mechanical transmission systems, and their outer surface coating technology is crucial for improving their performance and service life. Nylon powder dip-coating is an advanced surface treatment method that involves immersing a pre-treated universal joint bearing in a liquid containing nylon powder, forming a uniform and tough nylon coating on its surface. This coating not only significantly improves the bearing's wear resistance and corrosion resistance but also enhances its anti-friction properties, thus maintaining good working condition under high loads and harsh environments.

[0003] The publication number is CN1456393A, and the title is "Surface Nylon Coating Process for Spline Shafts". It states: "First, the cold-drawn spline shafts after machining are prepared in a centralized manner. The process flow is: workpiece pretreatment → dip coating with primer → heating → nylon coating → hot water cooling → room temperature water cooling."

[0004] However, during the nylon dip coating process, some powder particles may not adhere to the workpiece. These powder particles may undergo surface oxidation and partial cross-linking due to heat radiation from the workpiece or proximity to high-temperature areas, resulting in the formation of hard particles. The presence of these hard particles can lead to a decrease in coating quality, thereby reducing the final quality of the universal joint bearing. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by replacing the current nylon powder with clean nylon powder having predetermined fluidization properties through a switching component. A screening component then filters and collects nylon powder with decreased fluidization properties, forming new clean nylon powder with predetermined fluidization properties. Subsequently, a replacement component and a dispensing component are used to reassemble the new clean nylon powder with predetermined fluidization properties for subsequent use. This solves the technical problem that some powder particles fail to adhere to the workpiece, but after being subjected to workpiece heat radiation or proximity to high-temperature zones, surface oxidation and partial cross-linking occur, forming hard particles. The presence of these hard particles leads to a decrease in coating quality, thereby reducing the final quality of the universal joint bearing.

[0006] To address the above technical issues, the following technical solution is adopted: A coating equipment and process for processing universal joint bearings, comprising: The coating mechanism includes a switching component for replacing coating nylon powder, a screening component installed inside the switching component, a replacement component installed inside the switching component, and a dispensing component installed inside the switching component and above the replacement component. During processing, the switching component replaces the current nylon powder with clean nylon powder with predetermined fluidization properties. The screening component then filters and collects the nylon powder with decreased fluidization properties to form new clean nylon powder with predetermined fluidization properties. The replacement component and the dispensing component then reassemble the new clean nylon powder with predetermined fluidization properties for use.

[0007] Preferably, it also includes a processing mechanism, which includes: A pretreatment component, which is mounted on the side of the processing mechanism; An upper assembly, the upper assembly being mounted above the preprocessing assembly; and A transfer assembly, which is mounted on the periphery of the processing mechanism; During processing, the pretreatment component heats the workpiece and automatically and precisely installs a magnetic block at its bottom. Then, the transfer component transfers the workpiece to the processing mechanism for dip coating, which prevents nylon powder from entering the workpiece. The transfer component then separates the dip-coated workpiece from the magnetic block at its bottom and places it there. At the same time as the heated workpiece leaves the pretreatment component, the loading component loads a new set of workpieces onto the pretreatment component.

[0008] Preferably, the switching component includes: A track frame, on the top of which multiple movable boxes are slidably mounted, and the multiple movable boxes are driven by a transmission unit; A powder hopper, which is mounted on top of a mobile container; A fluidizing plate is installed inside the powder hopper and works in conjunction with an air jet pipe installed inside the powder hopper to achieve fluidization of nylon powder; A feed impeller, said feed impeller being installed inside the powder hopper; and An isolation box is installed outside the track frame and works with two vertically lifting isolation doors to isolate the scattered nylon powder. Preferably, the screening component includes: A sieve plate, which is vertically and elastically slidably disposed inside the movable box; The top rod is installed on both sides of the screen plate and works with the concave and convex rails installed on the inner and outer sides of the track frame to realize the up and down vibration of the screen plate. The scraper is horizontally slidably disposed inside the movable box and is driven by the transmission unit 2. A baffle, which is horizontally and elastically slidably disposed inside the sieve plate; A collection box, which is located below the baffle and slidably disposed at the bottom of the sieve plate; A plug rod, which is mounted on the mobile box; Storage box, wherein the storage box is movably and slidably disposed inside the movable box; and The base plate is horizontally slidably disposed at the bottom of the storage box, and is used in conjunction with multiple elastically slidably disposed blocks inside the storage box to achieve the limiting action of the base plate.

[0009] Preferably, the replacement component includes: A receiving frame one is slidably installed inside the isolation box; The second receiving frame is slidably installed inside the isolation box and is driven by the third transmission unit to drive the second receiving frame to transmit power to the first receiving frame. A push plate is horizontally slidably mounted on the receiving frame.

[0010] Preferably, the delivery component includes: A connecting frame, which moves along the length direction and the vertical direction of the bidirectional threaded rod by means of a transmission unit four; Clamping rods are elastically slidably disposed at the four corners of the connecting frame; The traction frame has two ends respectively installed at the ends of two adjacent parallel clamping rods, and works in conjunction with the guide rod installed on the lower surface of the inner wall of the isolation box to achieve the traction action of the clamping rods; A stop bar is installed on top of the powder hopper.

[0011] Preferably, the preprocessing component includes: A heating furnace, wherein a lifting door is vertically slidably mounted on the heating furnace; A fixed frame is fixedly installed on the heating furnace, and a movable plate that is slidably set on the fixed frame is used to transfer the workpiece into and out of the heating furnace. A movable plate, which is slidably disposed at the bottom of the fixed frame; A storage bucket is installed on the top of a movable plate, and a top ring installed on the inner wall of the storage bucket is used to support and limit the magnetic block. A fixed rail is mounted on the top of the movable plate; The mounting housings are arranged such that two opposing mounting housings are fixedly installed inside the storage bucket, while two opposing mounting housings are lifted and slidably set within a fixed rail by a transmission unit. A trapezoidal block is elastically slidably disposed inside the mounting housing.

[0012] Preferably, the upper assembly includes: A temporary storage plate, which is horizontally slidably mounted above the fixed frame by means of a transmission unit six; A movable rail is vertically slidably disposed above the temporary storage plate; The X-hinged rod has its upper and lower ends rotatably and slidably disposed at the bottom of the movable rail and the top of the temporary storage plate, respectively. It works in conjunction with the limiting rods installed at the bottom of the X-hinged rod and near both ends to restrict the movement of the workpiece.

[0013] Preferably, the transfer component includes: A transfer rail is mounted outside the pretreatment assembly and is arranged along the processing direction; A translation frame, which is rolled on top of the transfer rail by a transmission unit; A lifting plate, which is vertically and vertically mounted at the bottom of the translation frame; The sliding frame is slidably mounted at the bottom of the lifting plate; Clamping plate 2 is installed outside the sliding frame and works in conjunction with clamping plate 1 installed at the bottom of the lifting plate to achieve the clamping action of the workpiece; A stripper plate is mounted on a transfer rail and works in conjunction with a stripper block that is elastically slidably disposed inside it to achieve the action of the magnetic block detaching from the workpiece; The collection plate is located below the stripping plate and is slidably mounted on the transfer rail. It works in conjunction with the collection bucket that is movably inserted into the collection plate to realize the recycling action of the magnetic blockage. A placement rack, which is mounted on a transfer rail.

[0014] As a preferred option, the following steps are included: Step 1: Pre-treatment process. The pre-treatment component heats the workpiece on it and installs a magnetic block at the center of its bottom. Step 2, Dip Coating and Mounting Process: The transfer component transfers the combination of the processed parts and magnetic block from Step 1 to the processing mechanism for dip coating. At the same time, the mounting component mounts a set of processed parts onto the pre-treatment component. Subsequently, while the pre-treatment component heats the set of processed parts, the operator can replenish the material to the mounting component. Step 3: Recycling and Placement Process. The transfer component transfers the coated workpiece and magnetic block away from the processing mechanism, separates the workpiece from the magnetic block, and then places the workpiece in place. Step 4: Switching process. After repeating Step 1, Step 2, and Step 3 until the fluidization performance of the nylon powder is lower than the predetermined minimum fluidization performance, the switching component controls the switching of clean nylon powder with the predetermined fluidization performance to the processing line. The screening component screens and collects the nylon powder with low fluidization performance to form new clean nylon powder with the predetermined fluidization performance. Then, with the help of the replacement component and the feeding component, the new clean nylon powder with the predetermined fluidization performance is reassembled for subsequent use.

[0015] The beneficial effects of this invention are: (1) In this invention, the coating mechanism can periodically and automatically switch nylon powder with a fluidization performance lower than the predetermined minimum fluidization performance to clean nylon powder with a predetermined fluidization performance. During the replacement process, only the clean nylon powder needs to be transferred to the processing line, and the corresponding low fluidization performance nylon powder is automatically recycled. This process is relatively fast, which greatly reduces the downtime caused by replacing nylon powder. In addition, during the transfer process, the low fluidization performance nylon powder will be vibrated and screened and collected and recycled. This process is carried out inside the moving box, which reduces the situation where a large amount of nylon powder enters the air, resulting in material waste and air pollution.

[0016] (2) In this invention, by replacing the component, the empty storage box can be used to push out the storage box containing the sieved clean nylon powder in the mobile box, which provides space for the subsequent storage of the sieved nylon powder. At the same time, it also makes it convenient for the subsequent feeding component to put the clean nylon powder recovered in this screening back into the powder tank for recycling. Moreover, this process is carried out inside the isolation box, which reduces the pollution of the universal joint bearing processing environment by the flying nylon powder.

[0017] (3) In this invention, the pretreatment component can heat the workpiece and automatically install the magnetic block at the bottom center of the heated workpiece to prevent nylon powder from entering the inner cavity of the workpiece. At the same time, a set of magnetic blocks can be installed on a set of workpieces, which improves the efficiency of pretreatment and prevents workers from being burned when manually installing magnetic blocks. At the same time, when the previous set of workpieces is heated, the workpieces on the upper assembly can be manually installed and replenished. After the heated set of workpieces is transferred away, a set of workpieces on the upper assembly can be directly placed on the pretreatment component, which improves the efficiency of workpiece loading and reduces the possibility of workers being burned by touching the moving plate. In addition, the magnetic blocks on the dip-coated workpieces can be collected and stored vertically stacked by the stripping plate. They can be directly recycled and placed in the storage bucket for reuse, which is convenient for recycling.

[0018] In summary, this equipment has the advantages of high efficiency, high safety, and convenient operation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0021] Figure 2 This is a partial structural schematic diagram of the present invention.

[0022] Figure 3 This is a schematic diagram of the internal structure of the isolation box and isolation door of the present invention.

[0023] Figure 4 This is an enlarged structural diagram of a portion of the switching component of the present invention.

[0024] Figure 5 This is a schematic diagram of the internal structure of the mobile box and powder hopper of the present invention.

[0025] Figure 6 This is a schematic diagram of the cutting and separation structure of a portion of the screening components of the present invention.

[0026] Figure 7 For the present invention Figure 3 A magnified view of A in the middle.

[0027] Figure 8 This is a schematic diagram showing the separation of the replacement component and the delivery component of the present invention.

[0028] Figure 9 This is an enlarged schematic diagram of a portion of the replacement components of the present invention.

[0029] Figure 10 This is a schematic diagram of the partial dispensing component separation structure of the present invention.

[0030] Figure 11 This is an enlarged structural diagram of some of the preprocessing components and the upper assembly components of the present invention.

[0031] Figure 12 This is an enlarged structural diagram of the local preprocessing component of the present invention.

[0032] Figure 13 For the present invention Figure 12 A magnified view of B in the middle.

[0033] Figure 14 This is an enlarged structural diagram of the upper assembly of the present invention.

[0034] Figure 15 This is a schematic diagram of the enlarged structure of the local transfer component of the present invention. Figure 1 .

[0035] Figure 16 This is a schematic diagram of the enlarged structure of the local transfer component of the present invention. Figure 2 .

[0036] Figure 17 This is a schematic diagram of the cutting and separation structure of a portion of the transfer component of the present invention.

[0037] Figure 18 For the present invention Figure 17 A magnified view of C. Detailed Implementation

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0039] Example 1 like Figures 1 to 18 As shown, a coating device for processing universal joint bearings includes: The coating mechanism 1 includes a switching component 11 for replacing coating nylon powder, a screening component 12 installed inside the switching component 11, a replacement component 13 installed inside the switching component 11, and a dispensing component 14 installed inside the switching component 11 and above the replacement component 13. During processing, the switching component 11 replaces the current nylon powder with clean nylon powder with predetermined fluidization properties. The screening component 12 then screens and collects the nylon powder with decreased fluidization properties to form new clean nylon powder with predetermined fluidization properties. The replacement component 13 and the dispensing component 14 then reassemble the new clean nylon powder with predetermined fluidization properties for use.

[0040] It also includes processing unit 2, which includes: Pre-processing component 21 is mounted on the side of processing mechanism 2; Upper assembly 22, which is mounted above pretreatment assembly 21; and Transfer assembly 23 is installed on the periphery of processing mechanism 2; During processing, the pretreatment component 21 heats the workpiece 3 and automatically and precisely installs the magnetic block 4 on its bottom. Then, the transfer component 23 transfers the workpiece 3 to the processing mechanism 2 for dip coating processing in which nylon powder does not enter the interior of the workpiece 3. Afterward, the transfer component 23 separates the dip-coated workpiece 3 from the magnetic block 4 at its bottom and places it. At the same time as the heated workpiece 3 leaves the pretreatment component 21, the loading component 22 simultaneously loads a new set of workpieces 3 onto the pretreatment component 21.

[0041] It is worth mentioning that the bottom of the processed part 3 has an inner cavity that communicates with the outside. The inner cavity needs to maintain the original appearance of the metal. Therefore, a corresponding magnetic block 4 is required to be attached to the opening of the inner cavity at the bottom of the processed part 3. The protrusion on the top of the magnetic block 4 is adapted to the opening of the inner cavity at the bottom of the processed part 3. The magnetic block 4 is preferably an AlNiCo magnet.

[0042] In addition, the time required for 50g of nylon powder to flow out, measured using a standard funnel or Hall flow meter, corresponds to a predetermined fluidization performance of less than 25 seconds / 50g for the nylon powder. Any time exceeding 25 seconds / 50g indicates low fluidization performance.

[0043] It should be noted that the coating equipment for universal joint bearing processing in this embodiment also includes a frame and a drive mechanism. The coating mechanism 1 and the processing mechanism 2 are respectively installed on the frame. The drive mechanism consists of an air pump, an electric telescopic rod, a hydraulic rod, and several servo motors. The coating equipment for universal joint bearing processing also includes a host computer controller to control the operation of various components. The frame, drive mechanism, and controller are common knowledge to those skilled in the art and will not be described in detail here.

[0044] In this embodiment, preferably, as follows: Figures 1 to 7 As shown, the switching component 11 includes: The track frame 111 has multiple movable boxes 115 slidably mounted on its top, and the multiple movable boxes 115 are driven by a transmission unit. Powder hopper 116 is installed on top of mobile box 115; Fluidizing plate 117 is installed inside powder hopper 116 and works with jet pipe 118 installed inside powder hopper 116 to achieve fluidization of nylon powder. Feed impeller 119 is installed inside powder hopper 116; and The isolation box 1110 is installed outside the track frame 111 and works with two isolation doors 1111 that are vertically lifted and lowered on it to isolate the scattered nylon powder.

[0045] Filtering component 12 includes: The sieve plate 122 is vertically and elastically slidably disposed inside the movable box 115; The top rod 123 is installed on both sides of the screen plate 122 and works with the concave and convex rails 121 installed on the inner and outer sides of the track frame 111 to realize the up and down vibration of the screen plate 122. The scraper 124 is horizontally slidably disposed inside the movable box 115 and is driven by the transmission unit 2. Baffle 125 is horizontally and elastically slidably disposed inside sieve plate 122; Collection box 126 is located below baffle 125 and is slidably disposed at the bottom of sieve plate 122; Insert rod 127 is mounted on mobile box 115; Storage box 128, which is movably and slidably disposed inside movable box 115; and The base plate 129 is horizontally slidably disposed at the bottom of the storage box 128, and together with multiple elastically slidably disposed blocking blocks 1210 inside the storage box 128, the base plate 129 is limited in position.

[0046] Furthermore, the transmission unit includes a support plate 112 installed inside the track frame 111, two sprockets 113 rotatably installed at the bottom of the support plate 112, and the two sprockets 113 are driven by a chain 114. The movable box 115 is installed on the chain 114. Preferably, the insertion rod 127 is detachably mounted on the movable box 115 by means of threads, and the insertion rod 127 is movably inserted into the collection box 126. The movement of the collection box 126 can be restricted by the insertion rod 127 so that the collection box 126 can only slide vertically with the sieve plate 122. The transmission unit 2 includes a threaded rod 1211 rotatably disposed inside the movable box 115, and a scraper 124 threadedly mounted on the outside of the threaded rod 1211, and a fixed rod 1212 mounted inside the movable box 115, with the scraper 124 slidably disposed on the outside of the fixed rod 1212. Preferably, a pipe is provided at the innermost part of the isolation box 1110 and between the two isolation doors 1111, which can be used to connect a vacuum cleaner. The former is used to reduce the nylon powder floating inside the isolation box 1110, and the latter can greatly prevent the powder inside the isolation box 1110 from spreading into the external working environment.

[0047] In this embodiment, preferably, the feed impeller 119 can disperse the nylon powder in the powder hopper 116 and transfer it to the sieve plate 122 for sieving, reducing the accumulation of nylon powder at the bottom of the powder hopper 116 and ensuring the stability of the nylon powder screening process. As the moving box 115 moves along the track frame 111, the top rod 123 slides on the concave and convex rails 121, causing the screen plate 122 to vibrate up and down, which improves the screening efficiency of nylon powder. Furthermore, the mechanical transmission between the screen plate 122 and the top rod 123 makes the vibration response speed of the screen plate 122 fast, eliminating the need for sensors and thus avoiding sensor failure due to nylon powder drift, thereby improving the stability of equipment operation. The isolation box 1110 and two isolation doors 1111 can isolate the nylon powder that is dispersed into the air during the nylon powder screening, collection and feeding process from the external environment.

[0048] Furthermore, when it is necessary to replace the nylon powder on the work line, the drive mechanism controls the two isolation doors 1111 to open. Subsequently, the drive mechanism controls the sprocket 113 to rotate, which in turn drives the moving box 115 to move on the track frame 111 via the chain 114. This transfers the moving box 115, which contains clean nylon powder with predetermined fluidization properties, to the work line. At the same time, the nylon powder that was originally below the predetermined minimum fluidization performance point is removed. During the transfer to the isolation box 1110, the drive mechanism controls the feed impeller 119 to rotate, causing the low-fluidization-performance nylon powder to fall from the powder hopper 116 into the support plate 112. Simultaneously, during the transfer of the moving box 115, the push rod 123 moves along the top of the concave-convex rail 121, causing the support plate 112 to vibrate up and down for screening. In conjunction with the next switch, the moving box 115 is transferred to the innermost part of the isolation box 1110, simultaneously collecting all the nylon powder into the storage box 128. Then, the drive mechanism controls the threaded rod... Rotate 1211 to move scraper 124 on screen plate 122 to push and squeeze baffle 125, sweeping and pushing hard particles on screen plate 122 into collection box 126. When it is necessary to clean hard particles in collection box 126, the moving box 115 should be outside isolation box 1110. Rotate insert rod 127 to move away from collection box 126, then pull out collection box 126 for cleaning and reinstall it at the bottom of screen plate 122. Rotate insert rod 127 to insert into collection box 126.

[0049] Preferred, such as Figures 8 to 10 As shown, the replacement component 13 includes: The receiving frame 131 is slidably installed inside the isolation box 1110; The second receiving frame 132 is slidably installed inside the isolation box 1110, and is driven by the third transmission unit to drive the second receiving frame 132 and the first receiving frame 131. Push plate 133 is horizontally slidably mounted on receiving frame 131.

[0050] Delivery component 14 includes: Connecting frame 141 moves along the length and vertical direction of bidirectional threaded rod 134 by means of transmission unit 4; Clamping rod 142 is elastically slidably disposed at the four corners of connecting frame 141; A traction frame 143 has two ends respectively mounted on the ends of two adjacent parallel clamping rods 142, and works in conjunction with a guide rod 144 mounted on the lower surface of the inner wall of the isolation box 1110 to achieve the traction action on the clamping rods 142; and The stop lever 148 is installed on the top of the powder hopper 116.

[0051] Furthermore, the transmission unit three includes a bidirectional threaded rod 134 rotatably mounted on the lower surface of the inner wall of the isolation box 1110, and a limiting rod 135 mounted on the lower surface of the inner wall of the isolation box 1110, with the first support frame 131 and the second support frame 132 both threadedly mounted on the outside of the bidirectional threaded rod 134 and located on both sides of the middle, and the first support frame 131 and the second support frame 132 both slidably disposed on the outside of the limiting rod 135 and on both sides of the bottom of the first support frame 131 and the second support frame 132, and sleeved on the outside of the bidirectional threaded rod 134, with the two ends of the first support frame 136 mounted on the corresponding positions by bearings; The transmission unit four includes a threaded rod 145 rotatably mounted on the upper surface of the inner wall of the isolation box 1110, a translation plate 146 slidably mounted on the upper surface of the inner wall of the isolation box 1110 and threadedly mounted on the outside of the threaded rod 145, and protective sleeves 147 mounted on both sides of the translation plate 146, with the ends of the protective sleeves 147 that are far apart from each other being mounted inside the isolation box 1110.

[0052] In this embodiment, preferably, the second protective sleeve 147 and the first protective sleeve 136 can respectively protect the second threaded rod 145 and the bidirectional threaded rod 134, reducing the amount of nylon powder that drifts onto them and affects the transmission. The bottom of the end of the clamping rod 142 near the inside of the connecting frame 141 is inclined. When the clamping rod 142 presses the storage box 128, it naturally slides away from the storage box 128. After the clamping rod 142 is aligned with the clamping hole on the storage box 128, it automatically clamps. This clamping structure is relatively simple, which reduces the impact of scattered powder on its operation and improves the practicality of the device. Furthermore, the drive mechanism controls the bidirectional threaded rod 134 to rotate, thereby bringing the first receiving frame 131 and the second receiving frame 132 closer together until they respectively contact the two sides of the moving box 115. Then, the drive mechanism controls the push plate 133 to push the empty storage box 128 on the first receiving frame 131, so that the empty storage box 128 is pushed into the moving box 115, while simultaneously pushing the storage box 128 containing clean nylon powder with predetermined fluidization properties onto the second receiving frame 132. During the process of the storage box 128 being pushed and repositioned, the drive mechanism controls the rotation of the threaded rod 145, and then the translation plate 146 drives the connecting frame 141 to move to the position above the receiving frame 132 of the corresponding contact moving box 115. After the position of the storage box 128 is changed, the drive mechanism directly controls the connecting frame 141 to descend, so that the clamping rod 142 naturally slides away from the storage box 128, and automatically clamps after the clamping rod 142 is aligned with the clamping hole on the storage box 128. Then the drive mechanism drives the storage box 128 to rise to the position aligned with the stop bar 148 and then translates it, so that the bottom plate 129 is blocked by the stop bar 148, forcing the block 1210 to leave the bottom plate 129, so that the bottom plate 129 slides relative to the storage box 128, and then clean nylon powder is put into the powder can hopper 116. Then the drive mechanism controls the jet pipe 118 to spray gas, so that the nylon powder in the powder can hopper 116 is in a low gas velocity fluidized state, and then the remaining powder is added. The fluidized powder will quickly engulf and mix the newly added powder evenly. After the feeding is completed, maintain fluidization for a short time to make the bed completely flat. Then, the storage box 128 is moved by the drive mechanism, so that the bottom plate 129 squeezes the moving box 115 and closes it again to the bottom of the storage box 128. While the clean nylon powder is being added into the powder hopper 116, the receiving frame 131 and receiving frame 2 132 can be controlled to move away from each other, providing space for the transfer of the moving box 115 located at the deepest part of the isolation box 1110. Subsequently, the drive mechanism controls the connecting frame 141 to carry the storage box 128 and place it on the receiving frame 131. During this process, the traction frame 143 is first fitted onto the guide rod 144. When the storage box 128 is placed on the receiving frame 131, the traction frame 143, under the traction of the guide rod 144, causes the clamping rod 142 to leave the storage box 128, completing the action of releasing the clamping action of the storage box 128.

[0053] Furthermore, such as Figures 11 to 18 As shown, the preprocessing component 21 includes: Heating furnace 211, with a vertically sliding lifting door 212 mounted on heating furnace 211; The fixed frame 213 is fixedly installed on the heating furnace 211, and works in conjunction with the movable plate 214 slidably set on the fixed frame 213 to realize the transfer action of the workpiece 3 into and out of the heating furnace 211; Movable plate 215 is slidably mounted at the bottom of fixed frame 213; Storage bucket 216 is installed on top of movable plate 215, and cooperates with top ring 217 installed on inner wall of storage bucket 216 to achieve the supporting and limiting action of magnetic block 4. Fixed rail 2110 is installed on the top of movable plate 215; Mounting housing 218, one set of two opposite mounting housings 218 are fixedly installed inside the storage bucket 216, and the other set of two opposite mounting housings 218 are lifted and slidably set in the fixed rail 2110 by the transmission unit 5. Trapezoidal block 219 is elastically slidably disposed inside mounting housing 218.

[0054] Upper component 22 includes: Temporary storage plate 221 is horizontally slidably mounted above fixed frame 213 by means of transmission unit six; The movable rail 222 is vertically slidably positioned above the temporary storage plate 221; The X-hinged rod 223 has its upper and lower ends rotatably and slidably mounted at the bottom of the movable rail 222 and the top of the temporary plate 221, respectively. It works in conjunction with the limiting rods 224 installed at the bottom of the X-hinged rod 223 and near both ends to restrict the movement of the workpiece 3.

[0055] Transfer component 23 includes: Transfer rail 231 is mounted outside the pretreatment assembly 21 and is arranged along the processing direction; Translation frame 232 is rolled on top of transfer rail 231 by means of transmission unit 7; The lifting plate 233 is vertically lifted and installed at the bottom of the translation frame 232; The sliding frame 235 is slidably mounted at the bottom of the lifting plate 233; Clamping plate 236 is installed outside the sliding frame 235 and works in conjunction with clamping plate 234 installed at the bottom of lifting plate 233 to achieve the clamping action of workpiece 3. The stripper plate 237 is installed on the transfer rail 231 and works in conjunction with the stripper block 238 that is elastically slidably set inside it to realize the action of the magnetic block 4 disengaging from the workpiece 3. The collection plate 239 is located below the unloading plate 237 and is slidably mounted on the transfer rail 231. It works in conjunction with the collection bucket 2310 that is movably inserted into the collection plate 239 to realize the recycling action of the magnetic block 4. Placement rack 2311, placement rack 2311 is mounted on transfer rail 231 Furthermore, preferably, the top ring 217 supports the lowest magnetic block 4 inside the storage barrel 216, separating it from the lower surface of the inner wall of the storage barrel 216, providing space for the vertically lifting trapezoidal block 219 to move to the bottom of the lowest magnetic block 4. The transmission unit five includes a lifting rod 2111 that is slidably disposed outside the mounting shell 218 and a threaded rod 2112 that is rotatably disposed on the top of the movable plate 215, and the lifting rod 2111 is threadedly disposed outside the threaded rod 2112. Preferably, a blocking block is provided to limit the maximum sliding range of the X-hinged rod 223 on the movable rail 222 and the temporary plate 221. When the movable rail 222 is attached to the top of the temporary plate 221, the X-hinged rod 223 cannot slide. The transmission unit six includes a support frame 226 mounted above the fixed frame 213, and a temporary storage plate 221 slidably disposed on the support frame 226, and a threaded rod four 225 rotatably disposed on the support frame 226, with the threaded transmission of the temporary storage plate 221 disposed outside the threaded rod four 225. The transmission unit seven includes a second sprocket 2312 mounted on the roller shaft of the translation frame 232 and a third sprocket 2313 rotatably mounted on the top of the translation frame 232, and the third sprocket 2313 and the second sprocket 2312 are connected by chain transmission.

[0056] In this embodiment, preferably, the limiting rod 224 can prevent the workpiece 3 from falling through the heating furnace 211. When the distance between the two corresponding limiting rods 224 increases, the workpiece 3 can fall vertically onto the corresponding mounting position on the moving plate 214. It is not necessary to directly install the workpiece 3 onto the moving plate 214, which reduces the possibility of burns to the operator. Furthermore, a group of workpieces 3 can be installed onto the moving plate 214 at the same time, which improves the loading efficiency of the workpiece 3. Placing the coated workpiece 3 on the placement rack 2311 for a period of time allows the viscous melt to flow automatically under the action of gravity and surface tension, filling in the tiny bumps and depressions formed when the powder particles melt, making the coating surface smooth and flat.

[0057] Furthermore, the drive mechanism controls the lifting door 212 to open and controls the moving plate 214 to carry the heated workpiece 3 away from the heating furnace 211. Subsequently, the drive mechanism controls the threaded rod 2112 to rotate, causing the lifting rod 2111 to descend, which in turn drives the corresponding mounting shell 218 to descend. Under the obstruction of the first magnetic block 4 in the storage bucket 216, the trapezoidal block 219 slides into the mounting shell 218. After the trapezoidal block 219 moves to below the first magnetic block 4, it extends under the action of elasticity. Then, the drive mechanism controls the lifting rod 2111 to rise, relying on the mounting shell 218 and the trapezoidal block 219 to drive the first magnetic block. 4. As the magnetic block rises, some magnetic blocks 4 may be attracted to the bottom of the magnetic block 4. When the first magnetic block 4 moves to the fixed mounting shell 218 and squeezes its corresponding trapezoidal block 219 into the fixed mounting shell 218, as the magnetic block 4 rises, the trapezoidal block 219 corresponding to the fixed mounting shell 218 moves to the bottom of the first magnetic block 4. Subsequently, when the magnetic block 4 rises, it can be separated from the subsequent magnetic blocks 4 by the trapezoidal block 219. Then, the trapezoidal block 219 corresponding to the sliding mounting shell 218 lifts the magnetic block 4 to the bottom of the corresponding workpiece 3. The control drive mechanism controls the rotation of sprocket 3 2313, thereby moving the translation frame 232 on the transfer rail 231 to the position of the corresponding workpiece 3 via sprocket 2312. The drive mechanism drives the lifting plate 233 to descend, and the drive mechanism drives the sliding frame 235 to move several clamping plates 236 to clamp the workpiece 3. The workpiece 3 can then be carried along with the magnetic block 4 for dip coating. After the workpiece 3 and the magnetic block 4 on the moving plate 214 are transferred, the drive mechanism controls the threaded rod 225 to rotate, so that the temporary storage plate 221 moves above the moving plate 214. Then, the movable rail 222 is controlled to descend, so that the X hinge rod 223 drives the corresponding limit rod 224 to increase the distance, causing the workpiece 3 to fall onto the moving plate 214. Then, the drive mechanism controls the moving plate 214 to be transferred into the heating furnace 211 for heating, and at the same time controls the temporary storage plate 221 to be reset so that the operator can reinstall the workpiece 3 onto the temporary storage plate 221. After the clamping plate 234 and clamping plate 236 clamp the workpiece 3 and the magnetic block 4 and apply the coating, the workpiece 3 and the magnetic block 4 are controlled to squeeze the corresponding stripping block 238. The magnetic block 4 forces the two corresponding stripping blocks 238 to move away from each other and stick to the magnetic block 4. Then, the workpiece 3 is lifted up, which separates the workpiece 3 from the magnetic block 4. The magnetic block 4 then falls into the collection bucket 2310 and is collected. After a certain amount of magnetic block 4 has been collected, the collection plate 239 can be pulled out directly, the collection bucket 2310 can be removed, and the row of magnetic blocks 4 that are attracted to each other can be poured out. Then, the drive mechanism is controlled to drive the lifting rod 2111 to rise to the maximum extent, so that the corresponding mounting shell 218, guided by the fixed rail 2110, causes the trapezoidal block 219 to leave the inner cavity of the storage bucket 216. Then, the row of magnetic blocks 4 can be directly placed into the storage bucket 216.

[0058] Example 2 like Figures 1 to 18 As shown, a coating process for machining universal joint bearings is characterized by comprising the following steps: Step 1, Pre-treatment process: The pre-treatment component 21 heats the workpiece 3 on it and installs a magnetic block 4 at the center of its bottom. Step 2, Dip Coating and Mounting Process: Transfer component 23 transfers the combination of processed part 3 and magnetic block 4 from Step 1 to the processing mechanism 2 for dip coating. At the same time, the mounting component 22 mounts a set of processed parts 3 onto the pretreatment component 21. Then, while the pretreatment component 21 heats the set of processed parts 3, the operator can add material to the mounting component 22. Step 3, recycling and placement process: Transfer component 23 transfers the coated workpiece 3 and magnetic block 4 away from processing mechanism 2, and separates the workpiece 3 from the magnetic block 4, and then places the workpiece 3. Step 4: Switching process. After repeating Step 1, Step 2, and Step 3 until the fluidization performance of the nylon powder is lower than the predetermined minimum fluidization performance, the switching component 11 switches the clean nylon powder with the predetermined fluidization performance to the processing line. The screening component 12 screens and collects the nylon powder with low fluidization performance to form new clean nylon powder with the predetermined fluidization performance. Then, with the help of the replacement component 13 and the feeding component 14, the new clean nylon powder with the predetermined fluidization performance is reassembled for subsequent use.

[0059] In the description of this invention, it should be understood that the terms "front and back", "left and right", 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 component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0060] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0061] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A coating device for processing universal joint bearings, characterized in that, include: The coating mechanism (1) includes a switching component (11) for replacing the nylon powder for coating, a screening component (12) installed inside the switching component (11), a replacement component (13) installed inside the switching component (11), and a dispensing component (14) installed inside the switching component (11) and located above the replacement component (13). During processing, the switching component (11) replaces the current nylon powder with clean nylon powder with predetermined fluidization properties. The screening component (12) screens and collects the nylon powder with decreased fluidization properties to form new clean nylon powder with predetermined fluidization properties. Then, the replacement component (13) and the dispensing component (14) reassemble the new clean nylon powder with predetermined fluidization properties for use. The switching component (11) includes: A track frame (111) has multiple movable boxes (115) slidably disposed on its top, and the multiple movable boxes (115) are driven by a transmission unit. A powder container (116) is mounted on top of a mobile box (115); Fluidizing plate (117), which is installed inside powder hopper (116) and works in conjunction with jet pipe (118) installed inside powder hopper (116) to achieve fluidization of nylon powder; A feed impeller (119) is installed inside the powder hopper (116); and An isolation box (1110) is installed outside the track frame (111) and works with two vertically lifting isolation doors (1111) to isolate the scattered nylon powder. The filtering component (12) includes: A sieve plate (122) is vertically and elastically slidably disposed inside a movable box (115); Top rod (123), the top rod (123) is installed on both sides of the screen plate (122), and cooperates with the concave and convex rails (121) installed on the inner and outer sides of the track frame (111) to realize the up and down vibration of the screen plate (122); The scraper (124) is horizontally slidably disposed inside the movable box (115) and is driven by the transmission unit 2. A baffle (125) is horizontally and elastically slidably disposed inside the sieve plate (122); A collection box (126) is located below a baffle (125) and is slidably disposed at the bottom of a sieve plate (122); Insert rod (127), said insert rod (127) is mounted on the movable box (115); Storage box (128), said storage box (128) being movably and slidably disposed inside the movable box (115); and The base plate (129) is horizontally slidably disposed at the bottom of the storage box (128), and cooperates with multiple elastically slidably disposed blocking blocks (1210) inside the storage box (128) to realize the limiting action of the base plate (129); The replacement component (13) includes: A receiving frame (131) is slidably installed inside the isolation box (1110); The second receiving frame (132) is slidably installed inside the isolation box (1110) and is driven by the third transmission unit to drive the second receiving frame (132) and the first receiving frame (131) through transmission; and Push plate (133), which is horizontally slidably mounted on receiving frame one (131); The delivery component (14) includes: The connecting frame (141) moves along the length direction and vertical direction of the bidirectional threaded rod (134) by means of the transmission unit four; Clamping rod (142), the clamping rod (142) is elastically slidably disposed at the four corners of the connecting frame (141); A traction frame (143) has two ends respectively mounted on the ends of two adjacent parallel clamping rods (142), and cooperates with a guide rod (144) mounted on the lower surface of the inner wall of the isolation box (1110) to achieve the traction action of the clamping rods (142); and A stop bar (148) is mounted on top of the powder hopper (116).

2. The coating equipment for processing universal joint bearings according to claim 1, characterized in that, It also includes a processing mechanism (2), which comprises: A pre-processing component (21) is mounted on the side of the processing mechanism (2); The superstructure assembly (22) is mounted above the pretreatment assembly (21); and A transfer assembly (23) is mounted on the periphery of the processing mechanism (2); During processing, the pretreatment component (21) heats the workpiece (3) and automatically and precisely installs the magnetic block (4) on its bottom. Then, the transfer component (23) transfers the workpiece (3) to the processing mechanism (2) for dip coating processing in which nylon powder does not enter the interior of the workpiece (3). Then, the transfer component (23) separates the dip-coated workpiece (3) from the magnetic block (4) at its bottom and places it. At the same time as the heated workpiece (3) leaves the pretreatment component (21), the loading component (22) loads a new set of workpieces (3) onto the pretreatment component (21).

3. The coating equipment for processing universal joint bearings according to claim 2, characterized in that, The preprocessing component (21) includes: A heating furnace (211) is provided with a vertically sliding lifting door (212). A fixed frame (213) is fixedly installed on a heating furnace (211), and a movable plate (214) slidably mounted on the fixed frame (213) is used to transfer the workpiece (3) into and out of the heating furnace (211); Movable plate (215), which is slidably disposed at the bottom of fixed frame (213); Storage bucket (216), the storage bucket (216) is installed on the top of the movable plate (215), and cooperates with the top ring (217) installed on the inner wall of the storage bucket (216) to realize the supporting and limiting action of the magnetic block (4); A fixed rail (2110) is mounted on top of the movable plate (215); Mounting housings (218), wherein a set of two opposing mounting housings (218) are fixedly installed inside the storage container (216), and another set of two opposing mounting housings (218) are slidably mounted within a fixed rail (2110) by means of a transmission unit; and A trapezoidal block (219) is elastically slidably disposed inside the mounting shell (218).

4. The coating equipment for processing universal joint bearings according to claim 2, characterized in that, The upper assembly (22) includes: A temporary storage plate (221) is horizontally slidably mounted above a fixed frame (213) by means of a transmission unit. Movable rail (222), which is vertically slidably disposed above temporary storage plate (221); and X-hinged rod (223), the upper and lower ends of which are respectively rotatably and slidably set at the bottom of the movable rail (222) and the top of the temporary plate (221), and cooperate with the limiting rods (224) respectively installed at the bottom of the X-hinged rod (223) and near the two ends to restrict the movement of the workpiece (3).

5. The coating equipment for processing universal joint bearings according to claim 2, characterized in that, The transfer component (23) includes: A transfer rail (231) is mounted outside the pretreatment assembly (21) and is arranged along the processing direction; The translation frame (232) is rolled on top of the transfer rail (231) by means of a transmission unit; A lifting plate (233) is vertically and vertically mounted at the bottom of the translation frame (232); The sliding frame (235) is slidably disposed at the bottom of the lifting plate (233); Clamping plate two (236) is installed outside the sliding frame (235) and cooperates with clamping plate one (234) installed at the bottom of the lifting plate (233) to realize the clamping action of the workpiece (3); The stripping plate (237) is installed on the transfer rail (231) and cooperates with the stripping block (238) that is elastically slidably set inside it to realize the action of the magnetic block (4) disengaging from the workpiece (3); A collection plate (239) is located below the unloading plate (237) and slidably mounted on the transfer rail (231). A collection bucket (2310) movably inserted into the collection plate (239) facilitates the recycling of the magnetic blockage (4). A placement rack (2311) is mounted on a transfer rail (231).

6. A coating process for processing universal joint bearings, employing the coating equipment for processing universal joint bearings as described in any one of claims 1-5, characterized in that, Includes the following steps: Step 1, Pre-treatment process: The pre-treatment component (21) heats the workpiece (3) on it and installs a magnetic block (4) at the center of its bottom. Step 2, Dip Coating and Mounting Process: The transfer component (23) transfers the combination of the processed part (3) and the magnetic block (4) from Step 1 to the processing mechanism (2) for dip coating. At the same time, the mounting component (22) mounts a set of processed parts (3) onto the pretreatment component (21). Then, while the pretreatment component (21) heats the set of processed parts (3), the staff can replenish the mounting component (22). Step 3, recycling and placement process: The transfer component (23) transfers the dip-coated workpiece (3) and the magnetic block (4) away from the processing mechanism (2), and separates the workpiece (3) from the magnetic block (4), and then places the workpiece (3) in place; Step 4: Switching process. After repeating Step 1, Step 2 and Step 3 until the fluidization performance of the nylon powder is lower than the predetermined minimum fluidization performance, the control switching component (11) switches the clean nylon powder with the predetermined fluidization performance to the processing line. The screening component (12) screens and collects the nylon powder with low fluidization performance to form new clean nylon powder with the predetermined fluidization performance. Then, with the help of the replacement component (13) and the delivery component (14), the new clean nylon powder with the predetermined fluidization performance is reassembled for subsequent use.

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