A grinding structure for processing flywheel housings

By using limiting components and combined grinding components, industrial robots are used to achieve all-round grinding of the flywheel housing, which solves the problems of long equipment adjustment time and poor production continuity in the existing technology and improves processing efficiency.

CN224575298UActive Publication Date: 2026-07-31JILIN DAHUA MACHINERY MANUFACTURING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN DAHUA MACHINERY MANUFACTURING CO LTD
Filing Date
2025-08-27
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing flywheel housing processing equipment requires frequent changes of tooling or grinding tools when dealing with complex structures, resulting in long equipment adjustment time and poor production continuity.

Method used

By employing limiting components and combined grinding components, and utilizing an industrial robot to drive the grinding column and polishing belt, all-round grinding of different parts of the flywheel housing can be achieved. The integrated grinding method eliminates the need to change tooling or fixtures.

Benefits of technology

It significantly reduces equipment setup time and improves processing continuity and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a grinding structure for flywheel housing processing, relating to the technical field of flywheel housing processing. It includes a worktable and an industrial robot. The worktable has a fixed base with a positioning rod on its top. A limiting component is located in the mounting groove of the fixed base. The industrial robot is positioned outside the worktable, and its end effector has a combined grinding component. This application uses a cylinder and pressure plate of the limiting component to fix the flywheel housing. The combined grinding component, driven by a motor, can precisely grind narrow or rigid areas of the flywheel housing, such as mounting holes and stepped surfaces. A polishing belt driven by a motor can efficiently polish flexible areas such as curved surfaces and large flat surfaces. Both grinding methods are integrated on the same mounting frame and moved by the industrial robot, allowing for comprehensive grinding of different parts of the flywheel housing without changing tooling or grinding components.
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Description

Technical Field

[0001] This utility model relates to the technical field of flywheel housing processing, and specifically to a grinding structure for flywheel housing processing. Background Technology

[0002] As a key component of the engine transmission system, the flywheel housing's surface precision and assembly sealing directly affect the engine's overall operational stability and service life. The flywheel housing typically includes multiple mounting holes, irregular curved surfaces, and connecting end faces. After casting or preliminary machining, these areas often have burrs, flash, and excessive surface roughness, necessitating grinding and polishing to meet subsequent assembly requirements. Currently, the industry primarily uses semi-automatic grinding equipment for flywheel housing grinding. This equipment typically employs fixed tooling with a single grinding component. Due to the complex structure of the flywheel housing, different parts require different types of grinding tools. A single grinding component cannot achieve all-around grinding, necessitating frequent changes of tooling or grinding tools, resulting in long equipment setup times and poor production continuity. Summary of the Invention

[0003] The purpose of this invention is to provide a grinding structure for processing flywheel housings, so as to overcome the above-mentioned defects in the prior art.

[0004] A grinding structure for processing flywheel housings includes a worktable and an industrial robot. The worktable is provided with a fixed base, and the top of the fixed base is provided with several positioning rods for inserting into mounting holes on the flywheel housing. The mounting groove of the fixed base is provided with a limiting component for fixing the flywheel housing. The industrial robot is located outside the worktable, and its end effector is provided with a combined grinding component for processing the flywheel housing.

[0005] Preferably, the limiting assembly includes a cylinder, a pressure plate, and a connecting plate. The cylinder body of the cylinder is installed in the mounting groove. One end of the pressure plate is hinged to the upper end of the piston rod of the cylinder via a pin. One end of the connecting plate is hinged to the cylinder body of the cylinder via a pin, and the other end of the connecting plate is hinged to the pressure plate via a pin.

[0006] Preferably, the combined grinding component includes a mounting frame, a first motor, a second motor, a polishing belt and a tensioning component. The mounting frame is connected to the end effector of the industrial robot through a fixing plate. A fixing frame is provided on one side of the mounting frame. The first motor is installed in the fixing frame and a grinding column is provided on its output shaft. A bracket is provided on one side of the mounting frame. Two ends of the bracket are respectively rotatably connected to a driving wheel through a rotating shaft. The second motor is installed in the bracket and a first synchronous pulley is installed on its output shaft. The first synchronous pulley is connected to a second synchronous pulley on one of the rotating shafts through a synchronous belt. The tensioning component is provided in the bracket and its tensioning wheel tensions the polishing belt connected to the driving wheel and the tensioning wheel.

[0007] Preferably, the fixing frame is of a "U" - shaped structure and its opening faces the direction of the mounting frame.

[0008] Preferably, the tensioning component includes a second cylinder, a guide rod and a moving frame. The second cylinder is installed in the bracket and a fixing plate is provided at the end of its piston rod. The guide rod is slidably connected to the bracket and its inner end is connected to the fixing plate. A wheel frame is provided at the outer end of the guide rod. The tensioning wheel is rotatably connected in the wheel frame.

[0009] Preferably, the pressing plate is of a "Z" - shaped structure.

[0010] Preferably, a cover plate is provided on the outer side of the bracket.

[0011] The beneficial effects achieved by the present utility model are as follows:

[0012] In this application, the flywheel housing is fixed by the first cylinder and the pressing plate of the limiting component. Then, through the combined grinding component that integrates two grinding structures of the grinding column and the polishing belt, the grinding column driven by the first motor can precisely grind the narrow or high - rigidity - required parts such as the mounting holes and stepped surfaces of the flywheel housing, and the polishing belt driven by the second motor can efficiently polish the parts with flexible grinding requirements such as the shell curved surface and large flat surface. The two grinding methods are integrated on the same mounting frame and are moved as a whole by the industrial robot. Without replacing the tooling or grinding components, it can achieve all - around grinding of different parts of the flywheel housing, greatly shortening the equipment adjustment time and improving the processing continuity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the whole of the present utility model.

[0014] Figure 2 It is a schematic structural diagram of the flywheel housing and the limiting component of the present utility model.

[0015] Figure 3 It is a schematic structural diagram of the fixing seat and the limiting component of the present utility model.

[0016] Figure 4 This is a schematic diagram of the side structure of the combined grinding component of this utility model.

[0017] Figure 5 This is a schematic diagram of the top structure of the combined grinding component of this utility model.

[0018] Figure 6 This is a schematic diagram of the combined grinding assembly of this utility model without the cover plate installed.

[0019] In the diagram, 1. Industrial robot; 2. Workbench; 3. Fixed base; 31. Mounting slot; 32. Positioning rod; 4. Limiting assembly; 41. Cylinder 1; 42. Pressure plate; 43. Connecting plate; 5. Combined grinding assembly; 51. Mounting bracket; 511. Fixed plate; 52. Fixed frame; 53. Motor 1; 531. Grinding column; 54. Bracket; 541. Cover plate; 55. Drive wheel; 56. Motor 2; 561. Synchronous pulley 1; 57. Synchronous belt; 58. Synchronous pulley 2; 59. Tensioning assembly; 591. Tensioning wheel; 592. Polishing belt; 593. Cylinder 2; 594. Fixed plate; 595. Guide rod; 596. Wheel frame; 6. Flywheel housing. Detailed Implementation

[0020] 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, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0022] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] like Figure 1-6As shown, this utility model provides a grinding structure for processing flywheel housing, including a workbench 2 and an industrial robot 1. The workbench 2 is provided with a fixed seat 3, and the top of the fixed seat 3 is provided with a plurality of positioning rods 32 for inserting into the mounting holes on the flywheel housing 6.

[0024] It should be noted that the mounting groove 31 of the fixed seat 3 is provided with a limiting component 4 for fixing the flywheel housing 6. The limiting component 4 includes a cylinder 41, a pressure plate 42 and a connecting plate 43. The cylinder body of the cylinder 41 is installed in the mounting groove 31. The pressure plate 42 has a "Z" shaped structure and one end of it is hinged to the upper end of the piston rod of the cylinder 41 by a pin. One end of the connecting plate 43 is hinged to the cylinder body of the cylinder 41 by a pin, and the other end of the connecting plate 43 is hinged to the pressure plate 42 by a pin.

[0025] In addition, the industrial robot 1 is located on the outside of the workbench 2 and its end effector is equipped with a combined grinding assembly 5 for processing the flywheel housing 6. The combined grinding assembly 5 includes a mounting frame 51, a first motor 53, a second motor 56, a polishing belt 592 and a tensioning assembly 59. The mounting frame 51 is connected to the end effector of the industrial robot 1 through a fixed plate 511. One side of the mounting frame 51 is provided with a fixed frame 52 with a "U" shaped structure and an opening facing the mounting frame 51.

[0026] In addition, the motor 53 is mounted in the fixed frame 52 and has a grinding column 531 on its output shaft. A bracket 54 is provided on one side of the mounting frame 51, and a cover plate 541 is provided on the outside of the bracket 54, thereby protecting the mechanism inside the bracket 54.

[0027] Meanwhile, drive wheels 55 are rotatably connected to both ends of the bracket 54 via rotating shafts. The second motor 56 is installed in the bracket 54 and a first synchronous pulley 561 is installed on its output shaft. The first synchronous pulley 561 is connected to a second synchronous pulley 58 on one of the rotating shafts via a synchronous belt 57.

[0028] Furthermore, the tensioning assembly 59 is located in the bracket 54 and drives the tensioning wheel 591 thereon to tension the drive wheel 55 and the polishing belt 592 connected to the tensioning wheel 591. The tensioning assembly 59 includes a second cylinder 593, a guide rod 595, and a moving frame. The second cylinder 593 is installed in the bracket 54 and its piston rod end is provided with a fixing plate 594. The guide rod 595 is slidably connected to the bracket 54 and its inner end is connected to the fixing plate 594. The outer end of the guide rod 595 is provided with a wheel frame 596. The tensioning wheel 591 is rotatably connected to the wheel frame 596. The piston rod of the second cylinder 593 drives the fixing plate 594 and the guide rod 595 to move, so that the tensioning wheel 591 on the wheel frame 596 tensions the polishing belt 592.

[0029] Detailed implementation methods and principles:

[0030] During operation, the mounting hole on the flywheel housing 6 is fitted onto the positioning rod 32 on the top of the workbench 2. Then, the piston rod of the control cylinder 41 is extended to drive the pressure plate 42 to rotate, thereby pressing the flywheel housing 6 tightly through the pressure plate 42.

[0031] Then, the industrial robot 1 drives the combined grinding assembly 5 to move to the position of the flywheel housing 6 to be ground. When it is necessary to grind the flywheel housing 6 by the grinding column 531, the motor 1 53 is turned on. The output shaft of the motor 1 53 drives the grinding column 531 to rotate. The rotating grinding column 531 grinds and polishes the flywheel housing 6.

[0032] When the polishing belt 592 is needed to polish the flywheel housing 6, the second motor 56 is turned on. The output shaft of the second motor 56 drives the first synchronous wheel 561 to rotate. The first synchronous wheel 561 drives the second synchronous wheel 58 on the rotating shaft to rotate through the synchronous belt 57, thereby causing the drive wheel 55 to rotate. The drive wheel 55 drives the polishing belt 592 to rotate to polish the flywheel housing 6.

[0033] When it is necessary to tension the polishing belt 592, the piston rod of cylinder 2 593 drives the fixed plate 594 and guide rod 595 to move, so that the tensioning wheel 591 on the wheel frame 596 tensions the polishing belt 592.

[0034] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A polishing structure for flywheel shell machining, comprising a workbench (2) and an industrial robot (1), characterized in that: A fixed seat (3) is provided on the workbench (2). A number of positioning rods (32) for inserting into the mounting holes on the flywheel housing (6) are provided on the top of the fixed seat (3). A limiting component (4) for fixing the flywheel housing (6) is provided in the mounting groove (31) of the fixed seat (3). The industrial robot (1) is arranged outside the workbench (2), and a combined grinding component (5) for processing the flywheel housing (6) is provided on its end effector. The combined grinding component (5) includes a mounting frame (51), a first motor (53), a second motor (56), a polishing belt (592) and a tensioning component (59). The mounting frame (51) is connected to the end effector of the industrial robot (1) through a fixing plate (511). A fixing frame (52) is provided on one side of the mounting frame (51). The first motor (53) is installed in the fixing frame (52), and a grinding column (531) is provided on its output shaft. A bracket (54) is provided on one side of the mounting frame (51). Driving wheels (55) are respectively rotatably connected to both ends of the bracket (54) through rotating shafts. The second motor (56) is installed in the bracket (54), and a first synchronous wheel (561) is installed on its output shaft. The first synchronous wheel (561) is connected to a second synchronous wheel (58) on one of the rotating shafts through a synchronous belt (57). The tensioning component (59) is provided in the bracket (54), and it drives the tensioning wheel (591) thereon to tension the polishing belt (592) connected to the driving wheels (55) and the tensioning wheel (591). The tensioning component (59) includes a second cylinder (593), a guide rod (595) and a moving frame. The second cylinder (593) is installed in the bracket (54), and a fixing plate (594) is provided at the end of its piston rod. The guide rod (595) is slidably connected to the bracket (54), and its inner end is connected to the fixing plate (594). A wheel frame (596) is provided at the outer end of the guide rod (595). The tensioning wheel (591) is rotatably connected in the wheel frame (596).

2. The polishing structure for flywheel housing machining according to claim 1, characterized in that: The limiting component (4) includes a first cylinder (41), a pressing plate (42) and a connecting plate (43). The cylinder body of the first cylinder (41) is installed in the mounting groove (31). One end of the pressing plate (42) is hinged to the upper end of the piston rod of the first cylinder (41) through a pin shaft. One end of the connecting plate (43) is hinged to the cylinder body of the first cylinder (41) through a pin shaft. The other end of the connecting plate (43) is hinged to the pressing plate (42) through a pin shaft.

3. The polishing structure for flywheel housing machining according to claim 1, characterized in that: The fixing frame (52) is of a "U" - shaped structure and its opening faces the direction of the mounting frame (51).

4. The polishing structure for flywheel housing machining according to claim 2, characterized in that: The pressing plate (42) is of a "Z" - shaped structure.

5. The polishing structure for flywheel housing machining according to claim 1, characterized in that: A cover plate (541) is provided on the outer side of the bracket (54).