A paint spraying device for a brake housing

Abstract

The present application relates to a kind of paint spraying device for brake shell, belong to paint spraying equipment technical field.The present application includes shell, track, clamping mechanism, two groups of rotary drive mechanism and two groups of paint spraying assembly, shell is provided with base in, base is equipped with the positioning structure for supporting and positioning brake shell, track extends along front and back direction, the rear end of track is used to extend to the next station of paint spraying process, clamping mechanism is guided and slidably installed on track, it can move from front to back on track, base is rotatably installed on clamping mechanism around vertical extension rotary axis, two groups of rotary drive mechanism are set in shell interior with front and back interval, two groups of paint spraying assembly are slidably installed in front and back two half sections of track respectively, paint spraying assembly includes left and right extension upper paint spraying pipe and multiple spray heads connected on upper paint spraying pipe.The present application can improve production efficiency, and can reduce paint splashing, make production environment cleaner.

Description

Technical Field

[0001] This invention relates to the field of painting equipment technology, and more particularly to a painting device for brake housings. Background Technology

[0002] The brake housing is a crucial component of the braking system. It prevents dust, moisture, and other impurities from entering the brake, ensuring proper system operation, and provides mounting points for securing the brake to the vehicle or equipment. Painting the brake housing is an important step in the manufacturing and maintenance process, primarily aimed at corrosion protection, improving appearance quality, and extending service life. Typically, after painting, the brake housing undergoes high-temperature curing, forced cooling, and quality inspection.

[0003] Existing equipment for painting brake housings typically involves fixing the brake housing to a rotatable bracket, which rotates the brake housing while a spray nozzle sprays paint onto the rotating brake housing to complete the painting process.

[0004] For example, patent CN217288999U discloses a spraying device for manufacturing electromagnetic brakes. This device includes a housing, a protective door, a base, and a spiral rod. The protective door is rotatably connected to the front left side of the housing, and the base is connected to the bottom inside the housing. The spiral rod is rotatably connected inside the base. The extension of the cylinder's telescopic rod causes the connecting rod to move downwards, driving the spiral rod to rotate within the base. Simultaneously, the pressure rod slides downwards, causing the spray nozzle to move downwards and spray out waterproof paint, thereby achieving the purpose of uniformly spraying paint onto the electromagnetic brake.

[0005] However, this painting method requires the brake housing to be placed in a designated position and rotated during the painting process. After painting, the painted brake housing must be manually transferred to the next workstation. This manual transfer of the painted brake housing is time-consuming and affects production efficiency. Furthermore, the paint sprayed from the nozzle impacts the rotating brake housing surface perpendicularly, and the significant velocity difference between the paint and the brake housing easily causes severe paint splattering upon contact with the surface. This leads to paint waste and negatively impacts the processing environment. Summary of the Invention

[0006] This invention provides a paint spraying device for brake housings to solve the technical problems of existing brake housing paint spraying equipment that relies on manual transfer of painted brake housings to the next work station, resulting in low production efficiency and severe paint splattering when in contact with the brake housing, which affects the processing environment.

[0007] To solve the above problems, the present invention provides a paint spraying device for brake housings, which adopts the following technical solution:

[0008] A paint spraying device for brake housings, comprising:

[0009] The outer casing contains a base, and the base has a positioning structure for supporting and positioning the brake casing. The outer casing also contains:

[0010] The track extends in the front-to-back direction, with its rear end extending to the next station in the painting process.

[0011] The clamping mechanism is guided and slidably mounted on the track and can move from front to back on the track. The base is clamped on the clamping mechanism and can rotate about a vertically extending axis of rotation.

[0012] Two sets of rotary drive mechanisms are arranged at intervals inside the housing. When the base moves in the front half of the track, it is driven to rotate in the forward direction by the rotary drive mechanism located on the front side. When the base moves in the rear half of the track, it is driven to rotate in the reverse direction by the rotary drive mechanism located on the rear side.

[0013] Two sets of painting components are arranged at intervals inside the housing. The two sets of painting components can move synchronously with the base when the base moves on the front and rear halves of the track, and reset when the base leaves the front half of the track and completes the rear half of the track. The painting components include upper painting pipes extending to the left and right and multiple nozzles connected to the upper painting pipes. The upper painting pipes are located above the base. The spraying direction of the nozzles forms an acute angle α with the vertical plane A where the axis of the upper painting pipe is located. The acute angle α is located on one side of the rotation direction of the area on the brake housing directly below the nozzles in the vertical plane A.

[0014] Using the above technical solution, as the base moves the brake housing along the track toward the next workstation, the painting component moves synchronously with the base and paints the surface of the brake housing. The brake housing moves toward the next workstation while the painting process is underway. After the painting is completed, the brake housing moves to the next workstation. Compared with fixing the brake housing in a certain position for painting, it does not take too much time to transfer the brake housing after the painting is completed, which can improve production efficiency.

[0015] By setting up two sets of rotary drive mechanisms and two sets of painting components, the two sets of rotary drive mechanisms drive the base to rotate forward and reverse respectively. The nozzles on both sets of painting components are tilted, and the tilt direction of the nozzles matches the rotation direction of the base. This facilitates painting the surface of the brake housing from two different directions, ensuring that the paint covers all surfaces of the brake housing. By tilting the nozzles and aligning their tilt direction with the rotation direction of the base, the paint spray direction is consistent with the rotation direction of the brake housing. This reduces the impact force generated when the paint comes into contact with the surface of the brake housing, minimizes paint splatter, avoids paint waste, and creates a cleaner processing environment.

[0016] Furthermore, the painting assembly is elastically slidably mounted inside the housing via an elastic element that can extend and retract back and forth. A push block is elastically slidably connected to the painting assembly via an elastic element that can extend and retract left and right. When the elastic element is in its natural state, the push block and the clamping mechanism stop each other back and forth, allowing the painting assembly to be moved backward synchronously by the clamping mechanism. A push ramp is provided on the rear side of the push block, and a column is provided at the rear of each painting assembly. The column is used to push the push block away from the clamping mechanism through the push ramp, causing the push block to disengage from the clamping mechanism, thereby allowing the painting assembly to reset under the action of the elastic element.

[0017] Using the above technical solution, the painting assembly is driven by the clamping mechanism through the push block to move synchronously with the base. When the push block contacts the column, it disengages from the clamping mechanism and resets under the action of the elastic element. There is no need to set up a separate power mechanism to control the reciprocating movement of the painting assembly, which can save power costs and simplify the equipment structure.

[0018] Furthermore, two sets of rotation drive mechanisms are respectively located on the left and right sides of the base. The rotation drive mechanism includes multiple vertical cylinders arranged at intervals in front and behind. The vertical cylinders are rotatably installed inside the outer shell. The base includes a rotating circular plate coaxial with the rotation axis of the base. The edge of the rotating circular plate is provided with multiple evenly arranged toothed grooves that match the shape of the vertical cylinders. The toothed grooves mesh with the vertical cylinders. During the rearward movement of the base, the vertical cylinders push the rotating circular plate to rotate, thereby driving the base to rotate.

[0019] By adopting the above technical solution, during the process of the base moving backward, the base is rotated by the cooperation of the rotating circular plate and the vertical cylinder, eliminating the need for a power mechanism to drive the base to rotate, thus saving power costs.

[0020] Furthermore, the clamping mechanism includes two sets of clamping assemblies arranged symmetrically from left to right. Each clamping assembly includes three rotatable clamping rollers. An annular groove is provided on the outer side wall of each clamping roller. The base includes an annular plate coaxial with the rotation axis of the base. Two clamping rollers are fastened to the outer side of the annular plate through the annular groove, and the other clamping roller is fastened to the inner side of the annular plate through the annular groove.

[0021] Furthermore, a feed drive mechanism is also provided inside the outer casing. The feed drive mechanism includes a rotary chain, on which multiple push blocks are connected at equal intervals along the rotation direction of the chain. When the push blocks move with the rotary chain to the horizontal section located at the top of the chain, they block each other with the clamping mechanism in the front-back direction, and push the clamping mechanism to move the base backward as the rotary chain moves.

[0022] Furthermore, the positioning structure includes multiple positioning rods, which are evenly distributed around the rotation axis of the base, and each positioning rod is used to pass through the assembly holes provided on the brake housing.

[0023] By using the above technical solution, the brake housing is positioned by inserting a positioning rod through the mounting hole on the brake housing itself. The mounting hole does not need to be painted, and the areas on the brake housing that need to be painted are not covered and are fully exposed. This ensures that the surface of the brake housing is covered with paint after painting, avoiding any missed areas on the surface of the brake housing and eliminating the need for subsequent touch-up painting.

[0024] Furthermore, a support plate is vertically connected to the positioning rod. The support plate is lower than the top of the positioning rod and higher than the base. The support plate is used to support the bottom of the brake housing, so that the bottom of the brake housing is separated from the base. The painting assembly also includes a lower paint pipe and multiple nozzles installed on the lower paint pipe. The lower paint pipe is used to extend into the gap between the brake housing and the base.

[0025] By adopting the above technical solution, a support plate is set to support the brake housing, so that a gap is formed between the brake housing and the base, allowing the lower paint spray pipe to be inserted into the lower part of the brake housing through the gap, thereby spraying paint on the inner wall of the brake housing.

[0026] Furthermore, the spray direction of the nozzle on the lower spray pipe forms an acute angle β with the vertical plane B containing the axis of the lower spray pipe. The acute angle β is located on one side of the rotation direction of the area on the brake housing directly above the nozzle on the vertical plane B.

[0027] By adopting the above technical solution, the spraying direction of the nozzle located on the lower spray pipe is consistent with the rotation direction of the brake housing on the base, which can avoid serious paint splashing.

[0028] Furthermore, the positioning rod is elastically slidably mounted on the base via a resilient element that can extend and retract vertically. An auxiliary mechanism is also provided inside the housing. This auxiliary mechanism is used to pull the positioning rod down to below the lower paint spray tube when the positioning rod rotates to the area directly to the left and right of the base's rotation axis.

[0029] By adopting the above technical solution, the auxiliary mechanism can pull down the positioning rod that has rotated to the left or right of the base's rotation axis, so that the positioning rod is lower than the lower paint spray pipe, thus avoiding interference between the lower paint spray pipe and the positioning rod.

[0030] Furthermore, the auxiliary mechanism is provided in two symmetrical sets on the left and right sides. The auxiliary mechanism includes a conveyor chain and multiple stop bars. The conveyor chain can convey in the vertical direction. The multiple stop bars extend in the front-back direction and are spaced apart on the conveyor chain along the rotation direction of the conveyor chain. As the conveyor chain rotates, the bottom end of the positioning rod is vertically connected to a pressure rod. When the positioning rod rotates to the left and right of the base rotation axis, the corresponding pressure rod rotates to the space between two adjacent stop bars in the auxiliary mechanism on the corresponding side and is driven downward by the rotating stop bars.

[0031] The beneficial effects of the brake housing painting device provided by this invention are as follows: This invention allows the brake housing to move along a track towards the next workstation while being painted, and it can also paint both sides of the brake housing simultaneously, thus improving production efficiency. This invention uses two sets of rotating drive mechanisms and two sets of painting components to paint the brake housing, and the spray nozzles are arranged at an angle, allowing for a more uniform and comprehensive paint coverage of the brake housing surface. By aligning the tilt direction of the spray nozzles with the corresponding rotation direction of the brake housing, the impact force generated when the paint contacts the brake housing surface can be reduced, thus mitigating paint splatter. This invention uses a positioning rod inserted into the mounting hole on the brake housing to position the brake housing, ensuring that the surfaces on the brake housing to be painted are fully exposed, eliminating the need for touch-ups after painting. Attached Figure Description

[0032] Figure 1 A three-dimensional structural schematic diagram of a paint spraying device for a brake housing provided by the present invention. Figure 1 ;

[0033] Figure 2 A three-dimensional structural schematic diagram of a paint spraying device for a brake housing provided by the present invention. Figure 2 ;

[0034] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0035] Figure 4 A top view of a paint spraying device for a brake housing provided by the present invention;

[0036] Figure 5 A front view of a paint spraying device for a brake housing provided by the present invention;

[0037] Figure 6A top-view sectional view of a paint spraying device for a brake housing provided by the present invention;

[0038] Figure 7 A perspective sectional view of a paint spraying device for a brake housing provided by the present invention;

[0039] Figure 8 A three-dimensional structural diagram of the base and positioning structure in a paint spraying device for a brake housing provided by the present invention;

[0040] Figure 9 A cross-sectional view of the base and positioning structure in a paint spraying device for a brake housing provided by the present invention;

[0041] Figure 10 for Figure 9 Enlarged structural diagram at point B;

[0042] Figure 11 A cross-sectional view of the base and clamping mechanism in a paint spraying device for a brake housing provided by the present invention;

[0043] Figure 12 A three-dimensional structural schematic diagram of a clamping component in a paint spraying device for a brake housing provided by the present invention;

[0044] Figure 13 A schematic diagram of the structure of the nozzle on one of the uprights in the front spraying assembly of a brake housing spraying device provided by the present invention.

[0045] Figure 14 A schematic diagram of a paint spraying device for a brake housing provided by the present invention, wherein the base is located at the front paint spraying assembly.

[0046] Figure 15 This is a schematic diagram of a paint spraying device for a brake housing provided by the present invention, in which the base is located at the rear paint spraying assembly.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1. Outer shell; 2. Base frame; 201. Side frame; 3. Track; 301. Guide groove; 4. Slide rail; 5. Rotary chain; 6. Push block; 7. Upper paint spray pipe; 8. Upright pole; 9. Lower paint spray pipe; 10. Drive sprocket; 11. Movable block; 12. Support block; 121. Pushing inclined surface; 13. Elastic element two; 14. Column; 15. Support base; 151. Slider; 16. Clamping roller; 161. Annular groove; 17. 171. Base; 172. Top circular plate; 173. Annular flat plate; 174. Connecting column; 175. Rotating circular plate; 176. Toothed groove; 177. Connecting sleeve; 18. Elastic component one; 19. Nozzle; 20. Vertical cylinder; 21. Brake housing; 22. Positioning rod; 23. Elastic component three; 24. Limiting plate; 25. Support plate; 26. Pressure-bearing rod; 27. Reinforcing component; 28. Sprocket; 29. ​​Conveyor chain; 30. Stop bar. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0050] The following is one embodiment of a paint spraying device for a brake housing provided by the present invention:

[0051] like Figures 1-15 As shown, a paint spraying device for a brake housing includes a housing 1, a track 3, a clamping mechanism, a base 17, a positioning structure, a feed drive mechanism, a rotation drive mechanism, a paint spraying assembly, and an auxiliary mechanism.

[0052] like Figures 1-4 As shown, the outer casing 1 is arranged on a horizontal surface, and its rear side connects to the next workstation in the painting process. Inside the outer casing 1 is a U-shaped base frame 2, which includes two symmetrically arranged side frames 201. Two tracks 3 are provided, extending in the front-to-back direction, and are symmetrically arranged, each connecting to the top of one of the side frames 201. The tracks 3 have guide grooves 301 extending in the front-to-back direction. Each of the two side frames 201 also has a slide rail 4 on its top, extending in the front-to-back direction and located on the side of the track 3 opposite to the other track 3.

[0053] like Figure 3 , Figure 12As shown, the clamping mechanism includes two sets of clamping assemblies arranged symmetrically on the left and right sides. Each clamping assembly includes a support base 15 and three clamping rollers 16. A slider 151 is provided at the bottom of the support base 15, and the slider 151 is inserted into the guide groove 301, thereby allowing the support base 15 to slide on the track 3. The axis of the clamping rollers 16 extends vertically, and the clamping rollers 16 are rotatably mounted on the support base 15 around their own axis. The three clamping rollers 16 are arranged in an equilateral triangle, and a ring-shaped groove 161 is provided on the outer wall of each clamping roller 16.

[0054] like Figure 8 , Figure 9 , Figure 10 As shown, the base 17 includes a top circular plate 171, a connecting sleeve 176, an annular plate 172, a connecting post 173, and a rotating circular plate 174, which are coaxially connected from top to bottom. The rotating circular plate 174 has multiple evenly distributed toothed grooves 175 along its edge. The aforementioned clamping assembly clamps the base 17 via the annular plate 172. Figure 3 , Figure 11 As shown, the specific clamping method is as follows: two clamping rollers 16 are clamped onto the outer ring of the annular plate 172 through annular slots 161, and the other clamping roller 16 is clamped onto the inner ring of the annular plate 172 through annular slots 161. After the base 17 is clamped by the two sets of clamping components, it can be driven to move back and forth by the clamping components, and at the same time, the base 17 can also rotate around its own axis.

[0055] The positioning structure includes multiple positioning rods 22, which are mounted on the base 17 and evenly distributed around the central axis of the base 17. The positioning rods 22 move vertically through the top circular plate 171 and the rotating circular plate 174. The top of the positioning rod 22 is hemispherical, and a support plate 25 is vertically connected to the positioning rod 22. The support plate 25 is lower than the top of the positioning rod 22. A limit plate 24 is also vertically connected to the positioning rod 22, and the limit plate 24 is located below the support plate 25. The bottom end of the positioning rod 22 extends to the bottom of the rotating circular plate 174 and is vertically connected to a pressure rod 26. An elastic element 23 is sleeved on the outside of the positioning rod 22. The elastic element 23 is a compression spring that can extend and retract vertically. The two ends of the elastic element 23 abut against the limit plate 24 and the rotating circular plate 174. When the elastic element 23 is in its natural state, the support plate 25 is higher than the top surface of the base 17, and a gap is maintained between the supported brake housing 21 and the top surface of the base 17. The bottom ends of the multiple positioning rods 22 are connected by a reinforcing member 27, which makes the structure of the multiple positioning rods 22 more stable.

[0056] When positioning the brake housing 21, the top ends of multiple positioning rods 22 are inserted into multiple mounting holes on the brake housing 21, and the support plate 25 is supported on the bottom of the brake housing 21, so that the brake housing 21 and the base 17 are relatively anti-rotated, and the brake housing 21 can rotate synchronously with the base 17.

[0057] like Figure 2 , Figure 4 , Figure 5 As shown, the feed drive mechanism includes two sets of rotary chain assemblies, both mounted on the base frame 2 and arranged symmetrically from left to right. Each rotary chain assembly includes four rectangular drive sprockets 10 and a rotary chain 5 fitted around the four drive sprockets 10. Multiple push blocks 6 are connected to the rotary chain 5, and these push blocks 6 are evenly spaced along the rotation path of the rotary chain 5. The horizontal portion at the top of the rotary chain 5 is located within the aforementioned guide groove 301, and the push blocks 6 are slidably inserted into the guide groove 301. The push blocks 6 stop the aforementioned support base 15 from moving backward. As the rotary chain 5 moves, the push blocks 6 push the support base 15 backward, causing the base 17 to move backward.

[0058] like Figure 1 , Figure 6 As shown, there are two sets of rotation drive mechanisms, respectively mounted on two side frames 201 and arranged at intervals. Each rotation drive mechanism includes multiple cylindrical vertical cylinders 20, evenly spaced along the front-to-back direction, and each cylinder 20 is rotatably mounted on the side frame 201 around its own vertical axis. The cylinders 20 can engage with the toothed grooves 175 on the rotating circular plate 174. When the base 17 moves along the front-to-back direction, the cylinders 20 mesh with the rotating circular plate 174, causing the rotating circular plate 174 to rotate. When the base 17 moves backward along the front half of the track 3, the rotating circular plate 174 meshes with the cylinders 20 in the rotation drive mechanism located on the front side, causing the base 17 to rotate forward. When the base 17 moves backward along the rear half of the track 3, the rotating circular plate meshes with the cylinders 20 in the rotation drive mechanism located on the rear side, causing the base 17 to rotate in the opposite direction.

[0059] like Figures 2-5 As shown, there are two sets of paint spraying components, which are arranged at intervals on the base frame 2.

[0060] The painting assembly includes uprights 8, an upper spray pipe 7, and a lower spray pipe 9. Two uprights 8 are provided, symmetrically mounted on two side frames 201. Specifically, the bottom of each upright 8 is connected to a movable block 11, which is slidably mounted on a slide rail 4, allowing the upright 8 to slide back and forth along the slide rail 4. An elastic element 18, a tension spring capable of extending and retracting, connects the movable block 11 to the side frame 201. Each upright 8 is connected to an upper spray pipe 7 and a lower spray pipe 9, both of which are equipped with multiple nozzles 19 arranged at left-right intervals. The upper spray pipe 7 is located above the brake housing 21 on the base 17, and the lower spray pipe 9 is located between the brake housing 21 and the base 17.

[0061] like Figure 13 , Figure 14 , Figure 15 As shown, the nozzle 19 is obliquely connected to the corresponding upper spray pipe 7 and lower spray pipe 9. The nozzle 19 on the upper spray pipe 7 forms an acute angle α with the vertical plane A containing the central axis of the upper spray pipe 7. The acute angle α is located on the side of the direction of rotation of the area on the brake housing 21 corresponding to the area below the nozzle 19, in the direction of rotation of the vertical plane A. The nozzle 19 on the lower spray pipe 9 forms an acute angle β with the vertical plane B containing the central axis of the lower spray pipe 9. The acute angle β is located on the side of the direction of rotation of the area on the brake housing 21 corresponding to the area above the nozzle 19, in the direction of rotation of the vertical plane B.

[0062] Since the brake housing 21 rotates in different directions when it is engaged with the two sets of rotary drive mechanisms, the tilting directions of the nozzles 19 at corresponding positions in the two sets of paint spraying assemblies remain opposite.

[0063] like Figure 3As shown, a push block 12 is slidably mounted on the movable block 11 in the left-right direction. A push-up inclined surface 121 is provided on the rear side of the push block 12. An elastic element 13 is connected between the push block 12 and the movable block 11. The elastic element 13 is a compression spring that can extend and retract in the left-right direction. When the elastic element 13 is in its natural state, the push block 12 protrudes from the movable block 11 toward the middle of the base frame 2, so that the push block 12 and the support seat 15 block each other in the front-back direction. When the support seat 15 moves backward, the push block 12 drives the upright 8 to move backward synchronously. The upright 8 moves backward synchronously with the base 17. During the synchronous movement, the rotation axes of the upright 8 and the base 17 are aligned left and right. The side frame 201 is also provided with two columns 14 arranged at intervals. The two columns 14 are located in the middle and rear of the side frame 201, respectively, and correspond to the front and rear push blocks 12. When the push block 12 moves to contact the corresponding column 14, the column 14 pushes the push block 12 away from the support seat 15 through the push-in inclined surface 121, so that the push block 12 is disengaged from the support seat 15. At this time, the upright 8 is reset to the initial position under the action of the elastic element 18.

[0064] like Figure 7 As shown, the auxiliary mechanism is provided in two symmetrical sets, respectively mounted on the two side frames 201. The auxiliary mechanism includes two sets of transmission chain groups arranged at intervals front to back, and multiple stop bars 30 connecting the two sets of transmission chain groups. The transmission chain group includes two sprockets 28 arranged vertically at intervals and a transmission chain 29 sleeved on the outside of the two sprockets 28. The multiple stop bars 30 extend in the front-to-back direction and connect between the two transmission chains 29. When the transmission chain 29 rotates, the vertical section located on the inner side moves from top to bottom, driving the stop bars 30 located on the inner side to move from top to bottom.

[0065] During the movement of the aforementioned pressure rod 26 towards the left or right of the rotation axis of the base 17, it can be inserted between the two adjacent upper and lower stop rods 30 located on the inner side of the auxiliary mechanism on the corresponding side, and is driven downward by the stop rods 30, thereby moving the top of the positioning rod 22 to below the lower paint spray tube 9, thus avoiding interference between the positioning rod 22 and the lower paint spray tube 9 during the rotation of the base 17, and avoiding making the lower paint spray tube 9 too short to avoid interference, so that the lower paint spray tube 9 can extend into the brake housing 21 and be closer to the middle of the brake housing 21, ensuring that the paint completely covers the inner surface of the brake housing 21.

[0066] In the initial state of use, the base 17 is located at the front of the track 3. The brake housing 21 to be painted is placed on the base 17. Multiple positioning rods 22 are respectively inserted into the mounting holes on the brake housing 21. The support plate 25 supports the brake housing 21, and a gap is maintained between the brake housing 21 and the base 17. The feed drive mechanism and auxiliary mechanism are started. The push block 6 pushes the support base 15 to move backward, which drives the clamping mechanism and the base 17 clamped by the clamping mechanism to move backward. When the base 17 moves backward, the rotating circular plate 174 first engages with the vertical cylinder 20 in the rotating drive mechanism located on the front side. The base 17 is driven to rotate forward, and then the brake housing 21 rotates forward.

[0067] When the base 17 moves to a position below the upper spray pipe 7 and lower spray pipe 9 in the front-mounted paint assembly, the push block 12 contacts the support base 15. The push block 12 is pushed by the support base 15 and moves backward synchronously with the support base 15, thereby causing the paint assembly to move backward synchronously with the base 17. During the movement, each nozzle 19 in the paint assembly sprays paint towards the brake housing 21 in the direction of rotation of the brake housing 21, so that the paint covers the surface of the brake housing 21. When the positioning rod 22 rotates to a position near the left and right of the central axis of the base 17, the corresponding pressure rod 26 is driven downward by the stop rod 30 in the auxiliary mechanism, thereby causing the positioning rod 22 to move downward, so that the top of the positioning rod 22 is lower than the lower spray pipe 9. This prevents the lower spray pipe 9 from interfering with the rotating positioning rod 22.

[0068] When the push block 12 connected to the bottom of the front paint assembly comes into contact with the column 14 located in the middle of the side frame 201, it is pushed by the column 14 and moves away from the support seat 15, disengaging from the support seat 15. Then, the front paint assembly quickly and elastically resets under the action of the elastic element 18, and the clamping mechanism continues to move backward along with the base 17, driving the brake housing 21.

[0069] The base 17 moves to the rear half of the track 3, the rotating circular plate 174 disengages from the vertical cylinder 20 in the front rotating drive mechanism, and engages with the vertical cylinder 20 in the rear rotating drive mechanism, causing the base 17 to rotate in the opposite direction. When the support seat 15 contacts the push block 12 at the bottom of the paint assembly at the rear, it pushes the push block 12 to move the paint assembly backward synchronously, and the nozzles 19 on the paint assembly spray paint the surface of the brake housing 21 again in the direction of rotation of the brake housing 21. When the push block 12 at the bottom of the paint assembly contacts the column 14 at the rear of the side frame 201, the push block 12 disengages from the support seat 15, and the paint assembly quickly returns to its initial position.

[0070] The base 17 drives the painted brake housing 21 to continue moving backward to the end of the track 3. The painted brake housing 21 is then removed from the base 17 and transferred directly to the next adjacent work station.

[0071] This invention involves painting the brake housing 21 as the base 17 moves it towards the next workstation. After painting, the brake housing 21 is directly transported to the next workstation, shortening the transfer time and improving production efficiency. The spray direction of the nozzle 19 in the painting assembly is aligned with the rotation direction of the brake housing 21, reducing paint splatter during painting and creating a cleaner production environment. The positioning rod 22 passes through the mounting holes on the brake housing 21 for positioning and support, ensuring that the areas on the brake housing 21 requiring painting are fully exposed, eliminating the need for subsequent repainting.

[0072] In this embodiment, the rotation drive mechanism employs multiple vertical cylinders 20 arranged at intervals, and the base 17 is configured to include a rotating circular plate 174 with toothed grooves 175. The interaction between the vertical cylinders 20 and the rotating circular plate 174 drives the base 17 to rotate. By arranging two sets of rotation drive mechanisms on the left and right sides of the base 17, the base 17 can be driven to rotate in two opposite directions when engaged with the two sets of rotation drive mechanisms respectively. In other embodiments, the rotation drive mechanism can employ a motor with variable direction capability, which is connected to the base 17 for transmission, directly controlling the forward and reverse rotation of the base 17.

[0073] In this embodiment, the clamping mechanism includes two sets of clamping components. The clamping components include a support base 15 and three clamping rollers 16 connected to the support base 15. In other embodiments, the clamping mechanism includes two clamping blocks arranged opposite to each other that can approach each other. At this time, a connecting block that can rotate relative to the base 17 is coaxially connected to the base 17. The two clamping blocks approach each other and clamp the connecting block, thereby realizing the clamping mechanism clamping the base. At the same time, the base 17 can rotate relative to the clamping mechanism.

Claims

1. A paint spraying device for a brake housing, comprising a housing, a base is arranged in the housing, and a positioning structure for supporting and positioning the brake housing is arranged on the base, characterized in that, The housing further comprises: a track extending in the front-rear direction, the rear end of the track extending to the next station of the paint spraying process; a clamping mechanism slidingly mounted on the track and capable of moving on the track from front to rear, the base being clamped on the clamping mechanism and capable of rotating about a vertical rotation axis; two sets of rotation driving mechanisms arranged in the housing and spaced apart from each other, the base being driven by the rotation driving mechanism on the front side to rotate forward when moving on the front half of the track, and being driven by the rotation driving mechanism on the rear side to rotate reversely when moving on the rear half of the track; two sets of paint spraying assemblies arranged in the housing and spaced apart from each other, the two sets of paint spraying assemblies being capable of moving synchronously with the base when the base moves on the front and rear halves of the track, and being capable of resetting when the base leaves the front half of the track and walks through the rear half of the track, the paint spraying assembly comprising left and right extending upper paint spraying pipes and a plurality of nozzles connected to the upper paint spraying pipes, the upper paint spraying pipes being located above the base, the spray direction of the nozzles and the vertical plane A in which the axis of the upper paint spraying pipe is located forming an acute angle α, the acute angle α being located on the side of the rotation direction of the area on the brake housing opposite to the brake below the nozzles in the vertical plane A; the positioning structure comprising a plurality of positioning rods uniformly distributed around the rotation axis of the base, the positioning rods being respectively arranged in the assembly holes of the brake housing; a support plate being vertically connected to the positioning rod, the support plate being lower than the top end of the positioning rod and higher than the base, the support plate being arranged on the bottom of the brake housing to keep the bottom end of the brake housing and the base apart, the paint spraying assembly further comprising a lower paint spraying pipe and a plurality of nozzles arranged on the lower paint spraying pipe, the lower paint spraying pipe being arranged in the space between the brake housing and the base; the positioning rod being elastically and slidably arranged on the base through an elastic element capable of stretching up and down, the housing further comprising an auxiliary mechanism for lowering the positioning rod below the lower paint spraying pipe when the positioning rod rotates to the areas on the left and right of the rotation axis of the base; the auxiliary mechanism being arranged in two sets and being symmetrical to each other, the auxiliary mechanism comprising a conveying chain and a plurality of blocking rods, the conveying chain being capable of conveying in the vertical direction, the blocking rods being arranged on the conveying chain and extending in the front-rear direction and being spaced apart from each other in the rotation direction of the conveying chain, the bottom end of the positioning rod being vertically connected to a pressure bearing rod, the pressure bearing rod being rotated to the adjacent two blocking rods in the corresponding auxiliary mechanism on the corresponding side when the positioning rod rotates to the areas on the left and right of the rotation axis of the base and being driven by the rotating blocking rod to move downward.

2. The paint spraying device for a brake housing according to claim 1, wherein the paint spraying assembly being elastically and slidably arranged in the housing through an elastic element capable of stretching forward and backward, the paint spraying assembly being elastically and slidably connected to a thrust block through an elastic element capable of stretching left and right, the thrust block being blocked by the clamping mechanism when the elastic element is in the natural state, so that the paint spraying assembly can be driven by the clamping mechanism to move synchronously backward, the rear side of the thrust block being provided with a pushing inclined surface, the rear of each paint spraying assembly being provided with a stand, the stand being arranged to push the thrust block away from the clamping mechanism through the pushing inclined surface, so that the thrust block is separated from the clamping mechanism, and then the paint spraying assembly is reset under the action of the elastic element.

3. The paint spraying device for a brake housing according to claim 1 or 2, characterized in that, The two groups of rotating driving mechanisms are arranged on the left and right sides of the base, and the rotating driving mechanism comprises a plurality of vertical cylinders arranged at intervals in front and back. The vertical cylinders are rotatably arranged inside the shell. The base comprises a rotating disc plate coaxial with the rotating axis of the base. The edge of the rotating disc plate is provided with a plurality of uniformly arranged tooth grooves matched with the shape of the vertical cylinders. The tooth grooves are engaged with the vertical cylinders. During the rearward movement of the base, the vertical cylinders drive the rotating disc plate to rotate, thereby driving the base to rotate.

4. The paint spraying device for a brake housing according to claim 1 or 2, wherein The clamping mechanism comprises two groups of left and right symmetrically arranged clamping assemblies. The clamping assembly comprises three rotatable clamping vertical rollers. An annular clamping groove is arranged on the outer side wall of the clamping vertical roller. The base comprises an annular flat plate coaxial with the rotating axis of the base. Two clamping vertical rollers are buckled on the outer side of the annular flat plate through the annular clamping groove, and the other clamping vertical roller is buckled on the inner side of the annular flat plate through the annular clamping groove.

5. The paint spraying device for a brake housing according to claim 1 or 2, wherein The shell is also provided with a feeding driving mechanism. The feeding driving mechanism comprises a rotary chain. A plurality of push blocks are connected to the rotary chain and are distributed at equal intervals along the rotary direction of the chain. When the push blocks move to the horizontal section at the top of the chain along with the rotary chain, the push blocks and the clamping mechanism are mutually blocked in the front and back directions, and the push blocks push the clamping mechanism to drive the base to move rearward along with the movement of the rotary chain.

6. The paint spraying device for a brake housing according to claim 1, wherein The spray direction of the spray head on the lower paint spraying pipe and the axis of the lower paint spraying pipe form an acute angle β with the vertical plane B. The acute angle β is located on one side of the rotating direction of the area on the brake shell opposite to the upper side of the brake head in the vertical plane B.

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