Bore cleaning device

By designing an internal cleaning device, an automated gripping and moving nozzle is used to achieve automated cleaning and drying of motorcycle drive shafts, solving the problem of time-consuming and labor-intensive manual handling, and improving processing efficiency and cleaning effect.

CN224346515UActive Publication Date: 2026-06-12CHONGQING XINXING GEAR WHEEL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING XINXING GEAR WHEEL
Filing Date
2025-07-09
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

During the processing of motorcycle drive shafts, manual handling is required between the cleaning and drying steps, which is time-consuming, labor-intensive, and the cleaning effect is not ideal.

Method used

Design an internal hole cleaning device, including a cleaning nozzle, a drying nozzle, a gripping mechanism, and a moving drive, to achieve internal hole cleaning and drying by automatically gripping and moving the nozzle, reducing manual operation.

Benefits of technology

It eliminates the need for manual handling, improves cleaning and drying efficiency, reduces waiting time, saves time and effort, and ensures cleaning results.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses an internal hole cleaning device. The internal hole cleaning device includes a cleaning nozzle for cleaning workpieces, a nozzle mounting base for mounting the cleaning nozzle, a motion driver for moving the mounting base, and a cleaning gripping mechanism for gripping workpieces from an assembly line. The cleaning nozzle is connected to an external cleaning fluid source via a pipe. The outer diameter of the cleaning nozzle is smaller than the inner hole diameter of the workpiece. The front end of the cleaning nozzle is closed. The cleaning nozzle has cleaning nozzle holes for spraying cleaning fluid, and the cleaning nozzle holes are inclinedly arranged on the cleaning nozzle. The cleaning nozzle is detachably mounted on the nozzle mounting base, which is mounted on the motion driver. This utility model's internal hole cleaning device can grip and clean workpieces on an assembly line, and return them to the assembly line after cleaning.
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Description

Technical Field

[0001] This utility model relates to the field of motorcycle drive shaft processing technology, and in particular to an internal hole cleaning device. Background Technology

[0002] After the shaft hole of the motorcycle driveshaft is machined, it needs to be ground to ensure that the two ends of the shaft hole form a guiding structure for easy positioning in subsequent processes. After grinding, the burrs inside the shaft hole need to be removed, so a drill bit is needed to remove the burrs from the inner hole. After the burrs are removed, the shaft hole needs to be cleaned to ensure that the removed burrs and residual debris inside the shaft hole are removed. After cleaning, it is dried, and finally, a sealing test is performed. From grinding to burr removal, from burr removal to cleaning and drying, and from cleaning and drying to sealing test, all processes are carried out through a collection box. The driveshaft needs to be manually moved between processes, which is time-consuming and labor-intensive. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an internal hole cleaning device that can pick up the drive shaft from the production line for cleaning.

[0004] To address the aforementioned problems, this utility model provides an internal hole cleaning device. The device includes a cleaning nozzle for cleaning workpieces, a nozzle mounting base for mounting the cleaning nozzle, a motion driver for moving the mounting base, and a cleaning gripping mechanism for gripping workpieces from a production line. The cleaning nozzle is connected to an external cleaning fluid source via a pipe. The outer diameter of the cleaning nozzle is smaller than the inner diameter of the workpiece. The front end of the cleaning nozzle is closed. The cleaning nozzle has cleaning nozzle holes for spraying cleaning fluid, and these nozzle holes are inclined on the cleaning nozzle. The cleaning nozzle is detachably mounted on the nozzle mounting base, which is mounted on the motion driver.

[0005] Furthermore, the cleaning gripping mechanism includes a cleaning gripper for gripping a workpiece, a cleaning driver for driving the cleaning gripper, and a cleaning lifter for driving the cleaning driver to move up and down. The cleaning gripper is mounted on the cleaning driver, and the cleaning driver is mounted on the cleaning lifter.

[0006] Furthermore, the cleaning gripper is provided with a positioning slot for positioning the workpiece.

[0007] Furthermore, the mounting base is provided with a cleaning mounting hole for mounting the cleaning nozzle and a cleaning locking hole communicating with the cleaning mounting hole, and a cleaning locking element for locking the cleaning nozzle is screwed into the cleaning locking hole.

[0008] Furthermore, it also includes an internal hole drying mechanism, which includes a drying nozzle for drying residual cleaning fluid inside the workpiece's internal hole and a drying gripping mechanism for gripping the workpiece from the production line. The drying nozzle is detachably mounted on a nozzle mounting base and is connected to an external air source via a pipe.

[0009] Furthermore, the drying gripping mechanism includes a drying gripper for gripping a workpiece, a drying driver for driving the drying gripper, and a drying lifter for raising and lowering the drying driver. The drying gripper is mounted on the drying driver, and the drying driver is mounted on the drying lifter.

[0010] Furthermore, the drying nozzle has drying nozzles, which are arranged in a ring around the nozzle and are inclined.

[0011] Furthermore, it also includes a surface cleaning mechanism, which includes a surface cleaning nozzle for removing moisture and foreign matter from the surface of the workpiece and a nozzle mounting plate for mounting the surface cleaning nozzle. The surface cleaning nozzle is connected to an external air source through a pipe.

[0012] Furthermore, the surface cleaning nozzle includes a connector, a nozzle body, and a nozzle. The nozzle body is provided with an air passage, the connector is installed at the air inlet end of the air passage, and the nozzle is installed at the air outlet end of the air passage.

[0013] Furthermore, it also includes a frame for mounting the mobile drive, dryer lift, and nozzle mounting plate.

[0014] This utility model's internal hole cleaning device can use a cleaning gripping mechanism to grab a drive shaft from the production line, and then use a mobile driver to drive the nozzle mounting base to move, thereby extending the cleaning nozzle into the inner hole of the drive shaft. The cleaning nozzle sprays cleaning fluid to wash out the debris in the inner hole, completing the cleaning of the inner hole of the drive shaft. After cleaning, the cleaning gripping mechanism is returned to the production line. The whole process does not require manual handling, reducing waiting time and saving time and effort. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a preferred embodiment of the internal hole cleaning device of this utility model.

[0016] Figure 2 This is a side view of the internal hole cleaning device of this utility model.

[0017] Figure 3 This is a structural diagram of the mounting base.

[0018] Figure 4 This is a schematic diagram of the structure in which the cleaning nozzle is mounted on the mounting base using fasteners.

[0019] Figure 5 This is a schematic diagram of the cleaning nozzle.

[0020] Figure 6 This is a schematic diagram of the drying nozzle.

[0021] Figure 7 This is a schematic diagram of the cleaning and gripping mechanism.

[0022] Figure 8 This is a schematic diagram of the drying gripping mechanism.

[0023] Figure 9 This is a schematic diagram of the surface cleaning mechanism.

[0024] Figure 10 This is a schematic diagram of the surface cleaning nozzle.

[0025] The meanings of the labels in the attached diagram are as follows:

[0026] Cleaning nozzle 1, cleaning nozzle 11, nozzle mounting base 2, base plate 21, connecting plate 22, mounting plate 23, locking component 24, moving drive 3, cleaning gripping mechanism 4, cleaning gripper 41, positioning slot 411, cleaning drive 42, cleaning lifter 43, drying nozzle 51, drying nozzle 511, drying gripping mechanism 52, drying gripper 521, drying drive 522, drying lifter 523, surface cleaning mechanism 6, surface cleaning nozzle 61, connector 611, nozzle body 612, nozzle 613, air duct 614, nozzle mounting plate 62, frame 7, drive shaft 81, production line 82. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figure 1 and Figure 2As shown, a preferred embodiment of the internal hole cleaning device of this utility model includes a cleaning nozzle 1, a nozzle mounting base 2, a moving driver 3, a cleaning gripping mechanism 4, an internal hole drying mechanism, an external surface cleaning mechanism 6, and a frame 7. The cleaning nozzle 1 is used to spray cleaning fluid to remove debris remaining in the internal hole of the drive shaft 81. The internal hole drying mechanism includes a drying nozzle 51 and a drying gripping mechanism 52. The drying nozzle 51 is used to spray gas to remove residual cleaning fluid from the internal hole of the drive shaft 81. Both the cleaning nozzle 1 and the drying nozzle 51 are detachably mounted on the nozzle mounting base 2. The nozzle mounting base 2 is mounted on the moving driver 3, which drives the nozzle mounting base 2, thereby moving the cleaning nozzle 1 and the drying nozzle 51. The moving driver 3 is an electric cylinder; however, in other embodiments, a pneumatic cylinder or a hydraulic cylinder can also be used. The moving driver 3, the cleaning gripping mechanism 4, the drying gripping mechanism 52, and the external surface cleaning mechanism 6 are all mounted on the frame 7. The cleaning gripping mechanism 4 is used to grip the drive shaft 81 from the production line 82 to the cleaning position, and then put the drive shaft 81 back onto the production line 82 after cleaning. The drying gripping mechanism 52 is used to grip the drive shaft 81 from the production line 82 to the drying position, and then put the drive shaft 81 back onto the production line 82 after drying. The surface cleaning mechanism 6 is used to spray gas to remove the cleaning fluid and foreign matter remaining on the surface of the drive shaft 81 on the production line 82. The surface cleaning mechanism 6 cleans in real time, that is, it continuously sprays gas. There are two surface cleaning mechanisms 6, located on both sides of the drying gripping mechanism 52, so that different sides of the drive shaft 81 can be cleaned to ensure good cleaning effect. When the inner bore needs to be cleaned and dried, the cleaning gripping mechanism 4 and the drying gripping mechanism 52 simultaneously grip the corresponding drive shaft 81 on the production line 82 to the cleaning position and the drying position, respectively. Then, the moving driver 3 drives the nozzle mounting base 2 to move. The nozzle mounting base 2 simultaneously drives the cleaning nozzle 1 and the drying nozzle 51 to move towards the drive shaft 81. The cleaning nozzle 1 and the drying nozzle 51 move from outside the drive shaft 81 to inside the inner bore of the drive shaft 81 and continue to move along the inner bore until they reach the predetermined position. Then, the moving driver 3 resets, driving the nozzle mounting base 2 to reset, which in turn drives the cleaning nozzle 1 and the drying nozzle 51 to reset. Finally, the cleaning gripping mechanism 4 and the drying gripping mechanism 52 simultaneously place the drive shaft 81 back onto the production line 82, completing all the cleaning and drying actions. The cleaning nozzle 1 and the drying nozzle 51 begin spraying cleaning fluid and gas during movement until the moving driver 3 resets, causing the cleaning nozzle 1 and the drying nozzle 51 to reset and stop spraying. This ensures that the movement within the inner hole of the rotating shaft is always spraying cleaning fluid and gas, resulting in good cleaning and removal effects.

[0029] like Figure 3 and Figure 4As shown, the mounting base is provided with a cleaning mounting hole for mounting the cleaning nozzle 1 and a cleaning locking hole communicating with the cleaning mounting hole. A cleaning locking member 24 for locking the cleaning nozzle 1 is screwed into the cleaning locking hole. Specifically, the nozzle mounting base 2 includes a base plate 21, a connecting plate 22, and a mounting plate 23. The base plate 21 is mounted on the mobile driver 3. There are two connecting plates 22 and two mounting plates 23, with the two connecting plates 22 fixed at both ends of the base plate 21. The mounting plates 23 are respectively fixed on the corresponding connecting plates 22. The mounting plates 23 are provided with mounting holes, and the cleaning nozzle 1 is inserted into the mounting holes. The mounting base is provided with locking holes, which communicate with the mounting holes. Generally, the locking holes and mounting holes are perpendicular. A locking element 24 is screwed into the locking hole. When the locking element 24 is rotated, it can contact or move away from the cleaning nozzle 1, thereby locking or unlocking the cleaning nozzle 1. The locking element 24 is usually a bolt, using conventional components to reduce costs. By unlocking the cleaning nozzle 1, the position of the cleaning nozzle 1 can be moved, allowing the cleaning nozzle 1 to adapt to different lengths of the drive shaft 81 and to accommodate various specifications.

[0030] like Figure 5 As shown, the cleaning nozzle 1 is connected to an external cleaning fluid source via a pipe. The outer diameter of the cleaning nozzle 1 is smaller than the inner diameter of the workpiece, ensuring that the cleaning nozzle 1 can extend into the inner hole of the drive shaft 81. The cleaning nozzle 1 has cleaning nozzles 11 for spraying cleaning fluid. The cleaning fluid is sprayed out from the cleaning nozzles 11. The cleaning nozzles 11 are inclined on the cleaning nozzle 1, with the inclination direction generally facing the front end of the nozzle, ensuring that the sprayed cleaning fluid has an impact force in the axial direction of the cleaning nozzle 1, which can effectively remove debris. The front end of the cleaning nozzle 1 is closed, ensuring that the cleaning fluid can only be sprayed out from the cleaning nozzles 11. There are multiple cleaning nozzles 1, and multiple cleaning nozzles 11 are arranged around the cleaning nozzle 1 to ensure that the inner hole of the drive shaft 81 is fully covered, improving the cleaning effect.

[0031] like Figure 6As shown, the drying nozzle 51 is connected to an external air source via a pipe. The outer diameter of the drying nozzle 51 is smaller than the inner diameter of the workpiece, ensuring that the drying nozzle 51 can extend into the inner hole of the drive shaft 81. The drying nozzle 51 has drying nozzles 511 for spraying drying liquid. The drying liquid is sprayed out from the drying nozzles 511. The drying nozzles 511 are inclined on the drying nozzle 51, with the inclination direction generally facing the front end of the nozzle, ensuring that the sprayed gas has an impact force in the axial direction of the drying nozzle 51, which can effectively remove the cleaning liquid. The front end of the drying nozzle 51 is closed, ensuring that the gas can only be sprayed out from the drying nozzles 511. There are multiple drying nozzles 51, and multiple drying nozzles 511 are arranged around the drying nozzle 51 to ensure that the inner hole of the drive shaft 81 is fully covered, improving the cleaning effect.

[0032] like Figure 7 As shown, the cleaning gripping mechanism 4 includes cleaning grippers 41, a cleaning driver 42, and a cleaning lifter 43. Two cleaning grippers 41 are mounted on the cleaning driver 42. The cleaning driver 42 drives the two cleaning grippers 41 to move towards or away from each other, thereby gripping or releasing the drive shaft 81. The cleaning driver 42 is mounted on the cleaning lifter 43. The cleaning lifter 43 drives the cleaning driver 42 to rise and fall, which in turn drives the cleaning grippers 41 to rise and fall, thereby driving the drive shaft 81 located on the cleaning grippers 41 to rise and fall. The cleaning lifter 43 is mounted on the frame 7. The cleaning lifter 43 uses a cylinder, and the cleaning driver 42 uses a gripper cylinder. Using conventional components reduces the development of parts and lowers R&D costs. Using common components further reduces costs. When it is necessary to grab, the cleaning lift 43 drives the cleaning driver 42 and the cleaning gripper 41 to move down. After moving down to the position of the drive shaft 81, the cleaning driver 42 drives the cleaning gripper 41 to move towards each other to grab the drive shaft 81. Then the cleaning lift 43 resets and drives the cleaning driver 42 and the cleaning gripper 41 to reset and move above the production line 82. At this time, cleaning can be performed.

[0033] The cleaning gripper 41 is provided with a positioning groove 411, which is V-shaped. Of course, in other embodiments, the positioning groove 411 can also be C-shaped. The positioning groove 411 is used to position the drive shaft 81 and prevent the drive shaft 81 from falling off the cleaning gripper 41.

[0034] like Figure 8As shown, the drying gripping mechanism 52 includes drying grippers 521, a drying actuator 522, and a drying lifter 523. The drying grippers 521 are mounted on the drying actuator 522. There are two drying grippers 521. The drying actuator 522 drives the two drying grippers 521 to move towards or away from each other, thereby gripping or releasing the drive shaft 81. The drying actuator 522 is mounted on the drying lifter 523. The drying lifter 523 drives the drying actuator 522 to rise and fall, thereby driving the drying grippers 521 to rise and fall, and thus driving the drive shaft 81 located on the drying grippers 521 to rise and fall. The drying lifter 523 is mounted on the frame 7. The drying lifter 523 uses a cylinder, and the drying actuator 522 uses a gripper cylinder. Using conventional components reduces the development of parts and lowers R&D costs. Using common components further reduces costs. When gripping is required, the drying lift 523 drives the drying driver 522 and the drying gripper 521 to move down. After moving down to the position of the drive shaft 81, the drying driver 522 drives the drying gripper 521 to move towards each other to grip the drive shaft 81. Then the drying lift 523 resets and drives the drying driver 522 and the drying gripper 521 to reset and move above the production line 82, at which point drying can begin.

[0035] like Figure 9 and Figure 10 As shown, the surface cleaning mechanism 6 includes a surface cleaning nozzle 61 for removing moisture and foreign matter from the surface of the workpiece and a nozzle mounting plate 6223 for mounting the surface cleaning nozzle 61. The surface cleaning nozzle 61 is connected to an external air source via a pipe. The surface cleaning nozzle 61 includes a connector 611, a nozzle body 612, and a nozzle 613. The nozzle body 612 is provided with an air passage 614. The connector 611 is installed at the air inlet end of the air passage 614, and the nozzle 613 is installed at the air outlet end of the air passage 614. The connector 611 facilitates the connection of the pipe to the air passage 614, and the nozzle 613 facilitates better coverage of the driven shaft 81 surface by the sprayed gas. Multiple nozzles 613 are arranged side by side on the nozzle body 612.

[0036] In use, firstly, the cleaning lifter 43 and the drying lifter 523 drive the cleaning gripper 41 and the drying gripper 521 downwards respectively, moving them to both sides of the drive shaft 81 before stopping. Then, the cleaning driver 42 and the drying driver 522 drive the cleaning gripper 41 and the drying gripper 521 to clamp the corresponding drive shaft 81. Next, the cleaning lifter 43 and the drying lifter 523 reset, driving the drive shaft 81 upwards. Then, the moving driver 3 drives the nozzle mounting base 2 to move towards the drive shaft 81. Simultaneously, the nozzle mounting base 2 drives the cleaning nozzle 1 and the drying nozzle 51 to move, gradually inserting them into the inner holes of the corresponding drive shafts 81. The cleaning nozzle 1 and the drying nozzle 51 spray cleaning fluid and gas, leaving residue on the inner hole. After the debris and cleaning fluid inside the drive shaft 81 are thoroughly cleaned, the moving drive 3 moves to the predetermined position and begins to reset, causing the nozzle mounting base 2 to reset. This, in turn, causes the cleaning nozzle 1 and drying nozzle 51 to exit the drive shaft 81 until they return to their initial positions. Then, the cleaning lifter 43 and the drying lifter 523 move downwards, causing the drive shaft 81 to move downwards. After reaching the predetermined position, the cleaning drive 42 and the drying drive 522 respectively drive the cleaning gripper 41 and the drying gripper 521 to release the drive shaft 81. Finally, the cleaning lifter 43 and the drying lifter 523 reset, causing the cleaning gripper 41 and the drying gripper 521 to complete the cleaning and drying of the inner hole of the drive shaft 81. During this process, the external cleaning nozzle 61 continuously sprays gas to clean the drive shaft 81 on the production line 82, ensuring cleanliness both inside and out. The entire process requires no manual handling, reducing waiting time and saving time and effort.

[0037] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, whether directly or indirectly applied to other related technical fields, shall also be within the patent protection scope of this utility model.

Claims

1. An internal bore cleaning device, characterized in that: The device includes a cleaning nozzle for cleaning workpieces, a nozzle mounting base for mounting the cleaning nozzle, a motion driver for moving the mounting base, and a cleaning gripping mechanism for gripping workpieces from a production line. The cleaning nozzle is connected to an external cleaning fluid source via a pipe. The outer diameter of the cleaning nozzle is smaller than the inner diameter of the workpiece. The front end of the cleaning nozzle is closed. The cleaning nozzle has cleaning nozzle holes for spraying cleaning fluid, and the cleaning nozzle holes are inclined on the cleaning nozzle. The cleaning nozzle is detachably mounted on the nozzle mounting base, and the mounting base is mounted on the motion driver.

2. The internal bore cleaning device as described in claim 1, characterized in that: The cleaning gripping mechanism includes a cleaning gripper for gripping a workpiece, a cleaning driver for driving the cleaning gripper, and a cleaning lifter for driving the cleaning driver to move up and down. The cleaning gripper is mounted on the cleaning driver, and the cleaning driver is mounted on the cleaning lifter.

3. The internal bore cleaning device as described in claim 2, characterized in that: The cleaning gripper is provided with a positioning slot for positioning the workpiece.

4. The internal bore cleaning device as described in claim 1, characterized in that: The mounting base is provided with a cleaning mounting hole for installing a cleaning nozzle and a cleaning locking hole communicating with the cleaning mounting hole. A cleaning locking element for locking the cleaning nozzle is screwed into the cleaning locking hole.

5. The internal bore cleaning device as described in claim 1, characterized in that: It also includes an internal hole drying mechanism, which includes a drying nozzle for drying residual cleaning fluid inside the workpiece's internal hole and a drying gripping mechanism for gripping the workpiece from the production line. The drying nozzle is detachably mounted on a nozzle mounting base and is connected to an external air source via a pipe.

6. The internal bore cleaning device as described in claim 5, characterized in that: The drying gripping mechanism includes a drying gripper for gripping a workpiece, a drying driver for driving the drying gripper, and a drying lifter for raising and lowering the drying driver. The drying gripper is mounted on the drying driver, and the drying driver is mounted on the drying lifter.

7. The internal bore cleaning device as described in claim 6, characterized in that: The drying nozzle has drying nozzles, which are arranged in a ring around the nozzle and are inclined.

8. The internal bore cleaning device as described in claim 5, characterized in that: It also includes a surface cleaning mechanism, which includes a surface cleaning nozzle for removing moisture and foreign matter from the surface of the workpiece and a nozzle mounting plate for mounting the surface cleaning nozzle. The surface cleaning nozzle is connected to an external air source through a pipe.

9. The internal bore cleaning device as described in claim 8, characterized in that: The surface cleaning nozzle includes a connector, a nozzle body, and a nozzle. The nozzle body is provided with an air passage. The connector is installed at the air inlet end of the air passage, and the nozzle is installed at the air outlet end of the air passage.

10. The internal bore cleaning device as described in claim 8, characterized in that: It also includes a frame for mounting the mobile drive, dryer lift, and nozzle mounting plate.