A clamping mechanism for cleaning the bore of a bearing seat
By designing a clamping mechanism that can clean the inner bore of the bearing housing, and utilizing the combination of pre-compression protrusions and cleaning vents, the problem of low cleaning efficiency of the inner bore of the bearing housing is solved, achieving efficient cleaning and stable clamping of the bearing housing, thereby improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- DONGFENG HONDA AUTOMOBILE PARTS CO LTD
- Filing Date
- 2023-09-19
- Publication Date
- 2026-04-28
AI Technical Summary
Existing bearing housing bore cleaning devices occupy a large space and have low cleaning efficiency, which affects the production efficiency and product quality of bearing housings.
Design a clamping mechanism that can clean the inner hole of a bearing housing. Combining a clamping unit and a pre-clamping assembly, the pre-clamping protrusion is inserted into the inner hole and foreign objects are blown out through the cleaning air hole to achieve cleaning of the inner hole.
It achieves stable clamping and efficient air blowing cleaning of the bearing housing's inner hole, maintaining the cleanliness of the bearing housing and preventing residual foreign matter from affecting subsequent processing and product quality.
Smart Images

Figure CN117161789B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of internal combustion engine manufacturing, and more particularly, to a clamping mechanism for cleaning the inner bore of a bearing housing. Background Technology
[0002] Bearing housings are an important component of internal combustion engines. During the production and processing of bearing housings, it is necessary to maintain their cleanliness to avoid foreign objects affecting the processing and product quality. In particular, the inner hole of the bearing housing is particularly prone to accumulating dirt and grime, which usually requires specialized cleaning equipment. However, these cleaning equipment occupies a lot of space and has relatively low cleaning efficiency, which restricts the production efficiency of bearing housings and urgently needs to be improved. Summary of the Invention
[0003] In view of this, the present invention provides a clamping mechanism that can clean the inner hole of a bearing housing. It can not only stably clamp the bearing housing, but also blow air to clean the inner hole of the bearing housing, thereby blowing away foreign objects remaining in the inner hole of the bearing housing, maintaining the cleanliness of the bearing housing, and avoiding the impact of residual foreign objects on the subsequent processing of the bearing housing and product quality.
[0004] The objective of this invention is achieved through the following technical solution:
[0005] A clamping mechanism for cleaning the inner hole of a bearing housing includes a clamping plate, a clamping unit disposed on the clamping plate for clamping the bearing housing, and a pre-clamping assembly cooperating with the clamping unit for positioning the bearing housing and cleaning the inner hole of the bearing housing. The pre-clamping assembly includes a pre-clamping plate, a pre-clamping block disposed on the pre-clamping plate, a pre-clamping protrusion disposed on the pre-clamping block, and a cleaning air hole with the pre-clamping protrusion. The pre-clamping protrusion can extend into the inner hole of the bearing housing, and the cleaning air hole communicates with the inner hole of the bearing housing. The cleaning air hole is connected to an external air source and can blow gas from the external air source into the inner hole of the bearing housing.
[0006] This clamping mechanism can not only stably clamp the bearing housing, but also blow air to clean the inner hole of the bearing housing, thereby blowing away foreign objects remaining in the inner hole of the bearing housing, maintaining the cleanliness of the bearing housing, and avoiding the impact of residual foreign objects on subsequent processing of the bearing housing and product quality.
[0007] Preferably, the pre-compression assembly further includes a guide rod and a guide sleeve slidably sleeved on the outer periphery of the guide rod. The guide sleeve is installed on the pre-compression plate, and the pre-compression block is installed on the guide rod and movably connected to the pre-compression plate through the guide rod and the guide sleeve.
[0008] The pre-clamping block can move relative to the pre-clamping plate via the guide rod and guide sleeve. Before the clamping unit clamps the bearing housing, the pre-clamping protrusion on the pre-clamping block is aligned with the inner hole of the bearing housing. Then, the clamping mechanism moves downward and inserts the pre-clamping protrusion into the inner hole of the bearing housing. Gas from an external air source can then be blown into the inner hole of the bearing housing, thereby completing the cleaning operation of the inner hole of the bearing housing. At the same time, as the clamping mechanism moves downward, when the pre-clamping protrusion is inserted into the inner hole of the bearing housing, it will drive the guide rod to move relative to the guide sleeve until the guide rod moves to the end of its stroke. At this point, the positioning of the bearing housing is completed, and the clamping unit can clamp the bearing housing from both sides.
[0009] Preferably, the pre-compression block has a cleaning air duct, which is connected to the cleaning air hole, and the cleaning air hole is connected to an external air source through the cleaning air duct.
[0010] The design of the cleaning air duct reduces the length of the air pipe used to connect the cleaning air vent to the external air source. This makes the connection line neater and avoids the air pipe from getting tangled due to excessive length, thus ensuring stable operation of the equipment.
[0011] Preferably, the pre-compression protrusion and the pre-compression block are integrally formed or separately connected.
[0012] One-piece molded parts have no seams; the material is placed into the molding machine and produced in one step, resulting in better quality and a longer service life. Compared to split parts that are joined later, one-piece parts have a much stronger and more robust structure. Split parts, which are joined later, have hidden weak points in the gaps, while one-piece molded parts do not. Split-type connection structures, where multiple parts are manufactured separately, are independent components. Compared to one-piece molded parts, although they are slightly inferior in terms of service life, the manufacturing requirements are lower. They are connected using reliable connection methods before leaving the factory, making the multiple components a rigid whole, which is more economical than one-piece molded parts.
[0013] Preferably, the pre-compression protrusion is truncated cone in shape.
[0014] The pre-compression protrusion is frustoconical in shape, which facilitates its insertion into the inner hole of the bearing housing.
[0015] Preferably, the opening of the cleaning air duct is provided with an air duct interface, which can be connected to an air pipe.
[0016] The air duct interface can quickly and stably connect to the air tube, preventing the air tube from coming loose, and also reducing the difficulty of operation for personnel.
[0017] Preferably, the pre-compression block is Z-shaped, and its two ends are respectively connected to a guide rod.
[0018] A guide rod is connected to both ends of the pre-compression block. The pre-compression block is connected by two guide rods, which makes the force on the pre-compression block more even and avoids jamming during the movement of the pre-compression block.
[0019] Preferably, one end of the guide rod is connected to the pre-compression block, and the other end is provided with a limiting end cap, which can prevent the guide rod from slipping out of the guide sleeve.
[0020] The limiting end cap prevents the guide rod from slipping out of the guide sleeve, ensuring stable operation of the equipment.
[0021] Preferably, the pre-tightening assembly further includes a proximity switch for detecting the position of the limiting end cap.
[0022] The proximity switch can detect the position of the limit end cap, thereby determining whether the guide rod has moved to the end of its stroke, and further determining whether the bearing seat has been positioned, ensuring that the bearing seat held by the clamping unit has been accurately positioned.
[0023] Preferably, the pre-compression plate has a clearance groove for avoiding the limiting end cap.
[0024] The clearance groove is designed to prevent spatial interference between the limit end cover and the pre-compression plate, ensuring stable operation of the equipment.
[0025] The advantages of this invention compared to the prior art are:
[0026] The clamping mechanism for cleaning the inner bore of the bearing housing of the present invention can not only stably clamp the bearing housing, but also blow clean the inner bore of the bearing housing, thereby blowing away foreign objects remaining in the inner bore of the bearing housing, maintaining the cleanliness of the bearing housing, and avoiding the impact of residual foreign objects on the subsequent processing of the bearing housing and product quality. Attached Figure Description
[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a diagram showing the state of a clamping mechanism for cleaning the inner hole of a bearing housing according to an embodiment of the present invention when clamping the bearing housing.
[0029] Figure 2 This is a structural diagram of a clamping mechanism for cleaning the inner hole of a bearing housing according to an embodiment of the present invention.
[0030] Figure 3 for Figure 2 A magnified view of region A in the middle.
[0031] Figure 4 This is a structural diagram from another perspective of a clamping mechanism for cleaning the inner hole of a bearing housing according to an embodiment of the present invention.
[0032] Figure 5 for Figure 4 A magnified view of region B in the middle. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0034] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0035] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of this application, it should be understood that the terms "upper," "lower," "left," "right," "vertical," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product of this application is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0037] The technical solutions in this application will now be described with reference to the accompanying drawings.
[0038] This embodiment provides a clamping mechanism for cleaning the inner hole of a bearing housing, including a clamping plate 100, a clamping unit 200 disposed on the clamping plate 100 for clamping the bearing housing 01, and a pre-pressing assembly 300 cooperating with the clamping unit 200 for positioning the bearing housing and cleaning the inner hole of the bearing housing. The pre-pressing assembly 300 includes a pre-pressing plate 310, a pre-pressing block 320 disposed on the pre-pressing plate 310, a pre-pressing protrusion 330 disposed on the pre-pressing block 320, and a cleaning air hole 340 with the pre-pressing protrusion 330 cut out. The pre-pressing protrusion 330 can extend into the inner hole of the bearing housing, and the cleaning air hole 340 communicates with the inner hole of the bearing housing. The cleaning air hole 340 is connected to an external air source and can blow the gas from the external air source into the inner hole of the bearing housing.
[0039] This clamping mechanism can not only stably clamp the bearing housing, but also blow air to clean the inner hole of the bearing housing, thereby blowing away foreign objects remaining in the inner hole of the bearing housing, maintaining the cleanliness of the bearing housing, and avoiding the impact of residual foreign objects on subsequent processing of the bearing housing and product quality.
[0040] The pre-compression assembly 300 also includes a guide rod 350 and a guide sleeve 360 slidably sleeved on the outer periphery of the guide rod 350. The guide sleeve 360 is mounted on the pre-compression plate 310. The pre-compression block 320 is mounted on the guide rod 350 and is movably connected to the pre-compression plate 310 through the guide rod 350 and the guide sleeve 360.
[0041] The pre-clamping block 320 can move relative to the pre-clamping plate 310 via the guide rod 350 and the guide sleeve 360. Before clamping the bearing housing, the clamping unit 200 first aligns the pre-clamping protrusion 330 on the pre-clamping block 320 with the inner hole of the bearing housing. Then, the clamping mechanism moves downward and inserts the pre-clamping protrusion 330 into the inner hole of the bearing housing. The gas from the external air source can then be blown into the inner hole of the bearing housing, thereby completing the cleaning operation of the inner hole of the bearing housing. At the same time, as the clamping mechanism moves downward, when the pre-clamping protrusion 330 is inserted into the inner hole of the bearing housing, it will drive the guide rod 350 to move relative to the guide sleeve 360 until the guide rod 350 moves to the end of its stroke. At this point, the positioning of the bearing housing is completed, and the clamping unit 200 can clamp the bearing housing from both sides.
[0042] The pre-compression block 320 has a cleaning air duct, which is connected to the cleaning air hole 340. The cleaning air hole 340 is connected to an external air source through the cleaning air duct.
[0043] The design of the cleaning air duct reduces the length of the air pipe used for connecting the cleaning air hole 340 to the external air source. This makes the connection line neater and avoids the air pipe from getting tangled due to excessive length, ensuring stable operation of the equipment.
[0044] The pre-compression protrusion 330 and the pre-compression block 320 are connected separately.
[0045] A split connection structure means that multiple parts are processed and formed separately, and are independent components. Compared with a one-piece molded part, although it is slightly inferior in terms of service life, the process requirements are lower. Before leaving the factory, the parts are connected by a reliable connection method, so that the multiple parts become a rigid whole, which is more economical than a one-piece molded part.
[0046] The pre-compression protrusion 330 has a frustum shape.
[0047] The pre-compression protrusion 330 is frustoconical in shape, which facilitates the insertion of the pre-compression protrusion 330 into the inner hole of the bearing housing.
[0048] The opening of the clean air duct is provided with an air duct interface 321, which can be connected to an air pipe.
[0049] The duct interface 321 can quickly and stably connect the air tube, preventing the air tube from coming loose, and also reducing the difficulty of operation for personnel.
[0050] The pre-compression block 320 is Z-shaped, and its two ends are connected to a guide rod 350.
[0051] A guide rod 350 is connected to both ends of the pre-compression block 320. The pre-compression block 320 is connected by the two guide rods 350, which makes the force on the pre-compression block 320 more uniform and avoids jamming during the movement of the pre-compression block 320.
[0052] One end of the guide rod 350 is connected to the pre-compression block 320, and the other end is provided with a limiting end cap 351, which can prevent the guide rod 350 from slipping out of the guide sleeve 360.
[0053] The limiting end cap 351 can prevent the guide rod 350 from slipping out of the guide sleeve 360, ensuring stable operation of the equipment.
[0054] The pre-compression assembly 300 also includes a proximity switch 370 for detecting the position of the limit end cap 351.
[0055] The proximity switch 370 can detect the position of the limit end cap 351, thereby determining whether the guide rod 350 has moved to the end of its stroke, and thus determining whether the bearing seat has been positioned, ensuring that the bearing seat held by the clamping unit 200 has been accurately positioned.
[0056] The pre-compression plate 310 has a clearance groove 311 for avoiding the limiting end cover 351.
[0057] The clearance groove 311 is designed to prevent spatial interference between the limit end cover 351 and the pre-compression plate 310, thus ensuring stable operation of the equipment.
[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A clamping mechanism for cleaning the inner bore of a bearing housing, characterized in that, The device includes a clamping plate, a clamping unit disposed on the clamping plate for clamping a bearing housing, and a pre-clamping assembly that cooperates with the clamping unit for positioning the bearing housing and cleaning its inner bore. The pre-clamping assembly includes a pre-clamping plate, a pre-clamping block disposed on the pre-clamping plate, a pre-clamping protrusion disposed on the pre-clamping block, and a cleaning air hole disposed on the pre-clamping protrusion. The pre-clamping protrusion can extend into the inner bore of the bearing housing, and the cleaning air hole communicates with the inner bore of the bearing housing. The cleaning air hole is connected to an external air source and can blow gas from the external air source into the inner bore of the bearing housing. The pre-clamping block has a cleaning air duct that communicates with the cleaning air hole, and the cleaning air hole is connected to an external air source through the cleaning air duct. The pre-clamping protrusion is integrally formed with the pre-clamping block or is connected separately. The opening of the cleaning air duct is provided with an air duct interface, which can be connected to an air pipe.
2. The clamping mechanism for cleaning the inner bore of the bearing housing according to claim 1, characterized in that, The pre-compression assembly further includes a guide rod and a guide sleeve slidably sleeved on the outer periphery of the guide rod. The guide sleeve is installed on the pre-compression plate, and the pre-compression block is installed on the guide rod and movably connected to the pre-compression plate through the guide rod and the guide sleeve.
3. The clamping mechanism for cleaning the inner bore of the bearing housing according to claim 2, characterized in that, The pre-compression block is Z-shaped, and its two ends are respectively connected to a guide rod.
4. The clamping mechanism for cleaning the inner bore of the bearing housing according to claim 1, characterized in that, The pre-compression protrusion is truncated cone in shape.
5. The clamping mechanism for cleaning the inner bore of the bearing housing according to claim 2, characterized in that, One end of the guide rod is connected to the pre-compression block, and the other end is provided with a limiting end cap, which can prevent the guide rod from slipping out of the guide sleeve.
6. The clamping mechanism for cleaning the inner bore of the bearing housing according to claim 5, characterized in that, The pre-tightening assembly also includes a proximity switch for detecting the position of the limiting end cap.
7. The clamping mechanism for cleaning the inner bore of the bearing housing according to claim 5, characterized in that, The pre-compression plate has a clearance groove for avoiding the limiting end cap.
Citation Information
Patent Citations
Machine tool clamp for engine main bearing seat
CN211966054U
Compensation type clamping jaw
CN218195264U
Clamping jig for product polishing
CN218397606U