Lightweight chassis grinding tool
By designing a lightweight chassis abrasive tool that includes a center rod, support plate, swing rod and sandpaper, combined with a pneumatic housing and turbine system, the operational difficulties and debris cleaning problems of traditional abrasive tools when grinding holes and high roughness positions are solved, achieving more efficient grinding and better surface quality.
Patent Information
- Application Number
- CN202420787491.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-04-16
AI Technical Summary
Traditional abrasives are difficult to operate effectively when polishing the holes and positions with high roughness, and the debris generated by the polishing are difficult to clean in time, resulting in unqualified surface roughness.
A lightweight chassis abrasive tool is designed, which adopts a structure of a central rod, a support plate, a swing rod and a sandpaper. The centrifugal force is generated by rotating the drive shaft to slide the support plate, and the sandpaper rubs against the inside of the hole. At the same time, the pneumatic housing and the turbine system drive shaft slide to avoid tool movement and blow out debris through wire ropes and air to achieve cleaning and cooling.
The function of grinding holes is effectively added, avoiding the problem of inconvenient operation of grinding the flat surface, and adding functions of cleaning debris and cooling, improving grinding efficiency and surface quality.
Smart Images
Figure CN222661271U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of abrasive tools, in particular to a lightweight chassis abrasive tool. Background Art
[0002] The automobile chassis is used to support and install the automobile engine and its various components and assemblies, forming the overall shape of the automobile, and receiving the power of the engine to make the automobile move and ensure normal driving. In order to facilitate the installation of various components, some holes and planes will be left with appropriate margins during the chassis production process, and grinding tools will be used for grinding during the assembly process to ensure that each component can be kept in the appropriate position relative to the chassis after installation;
[0003] Abrasive tools are tools used for grinding, lapping and polishing. Grinding creates an appropriate gap between the component and the base for easy installation. Traditional grinding methods mostly use handheld grinders, and traditional grinding equipment can only grind flat surfaces and curved surfaces. It is not convenient to grind some holes, and when grinding positions that require roughness, the debris generated by grinding cannot be cleaned in time, which easily causes unqualified surface roughness. Therefore, a lightweight chassis abrasive tool that solves the above problems is needed. Utility Model Content
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a lightweight chassis grinding tool. The utility model has a novel structure, ingenious conception, simple and convenient operation, effectively adds the function of grinding holes, avoids the problem of inconvenient operation of grinding flat surfaces, and adds the functions of cleaning debris and cooling.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: the utility model includes a sealed shell, the middle part of which is rotatably connected to a drive shaft, the front end of the drive shaft is threadedly connected to a detachable center rod, a plurality of support plates are provided around the center rod, each of the support plates is rotatably connected to a plurality of swing rods on one side close to the center rod, the other side of each swing rod is rotatably connected to the center rod, and each of the support plates is fixedly connected to a sandpaper on one side away from the center rod.
[0006] Preferably, a tension rod is slidably connected to the middle of the center rod, and a plurality of steel ropes are fixedly connected to the front end of the tension rod, and the other end of each of the steel ropes is fixedly connected to the corresponding support plate. A push spring is fixedly sleeved on the outer side of the tension rod, and the other end of the push spring is fixedly connected to the center rod.
[0007] Preferably, a first pneumatic housing is fixedly connected to the inner rear side of the sealed housing, a first turbine is fixedly connected to the middle of the first pneumatic housing, and the first turbine is slidably connected to the drive shaft.
[0008] Preferably, the lower end of the sealed shell is fixedly connected to a second pneumatic shell, the middle part of the second pneumatic shell is rotatably connected to a second turbine, the upper end of the second turbine is fixedly connected to a cam, and the sealed shell of the drive shaft is slidably sleeved with a push slider, and the lower end of the push slider is in contact with the cam.
[0009] Preferably, a plane bearing is fixedly connected to the middle of the driving shaft, a support spring is fixedly connected to the other side of the plane bearing, and the other end of the support spring is fixedly connected to the sealing housing.
[0010] Preferably, a handle is fixedly connected to the left side of the sealed housing.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. The device has a center rod, a support plate, a swing rod and sandpaper. When in use, the driving shaft rotates to generate centrifugal force to make the support plate slide to the side away from the center rod, and the swing rod rotates relative to the center rod. At this time, the sandpaper on the outside of the support plate rubs the inside of the hole, and the support plate adapts to the size of the hole, effectively increasing the function of grinding the hole;
[0013] 2. The device has a second pneumatic housing, a second turbine, a cam, a push slider and a support spring. When in use, the air pump interface is connected to the air pump through an air pipe. The air pipe and the air pump are existing technologies. At this time, air enters the second pneumatic housing, and the air pushes the second turbine and the cam to rotate. The cam pushes the slider to slide the drive shaft backward, and the drive shaft slides the center rod forward and backward, avoiding the movement of the tool caused by rotating grinding, and effectively avoiding the problem of inconvenient operation of the grinding surface;
[0014] 3. The device has a drive shaft, a center rod, a tension rod and a wire rope. When in use, air is discharged from the air outlet of the first pneumatic housing, and the air enters the center rod through the sealed housing and the drive shaft, and then the air is discharged through the gap between the wire rope and the center rod. The air blows away the debris generated by grinding and cools down the grinding position. When grinding a flat surface, the air is discharged through the exhaust hole at the upper end of the second pneumatic housing, and then discharged through the drive shaft and the center rod, blowing away the debris generated at the grinding position, effectively adding the functions of cleaning debris and cooling. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0017] Figure 2 It is a schematic diagram of the state when the support plate is away from the center rod in the utility model.
[0018] Figure 3 It is a schematic diagram of the internal structure of the sealed shell in the utility model.
[0019] Figure 4 It is a schematic diagram of the structure in which the drive shaft slides forward and backward in the utility model.
[0020] In the figure: 1. Sealing housing; 2. Driving shaft; 3. Center rod; 4. Support plate; 5. Swing rod; 6. Sandpaper; 7. Tension rod; 8. Wire rope; 9. Push spring; 10. First pneumatic housing; 11. First turbine; 12. Second pneumatic housing; 13. Second turbine; 14. Cam; 15. Push slider; 16. Plane bearing; 17. Support spring; 18. Handle. DETAILED DESCRIPTION
[0021] The following is combined with Figure 1-Figure 4 The specific implementation modes of the present utility model are further described in detail.
[0022] Embodiment 1, by Figure 1 and Figure 2 The invention provides a sealing shell 1, comprising a sealing shell 1. In order to reduce the weight of the equipment, a driving shaft 2 is rotatably connected to the middle of the sealing shell 1. A detachable center rod 3 is threadedly connected to the front end of the driving shaft 2. The rotation direction of the driving shaft 2 is opposite to the thread direction to prevent the center rod 3 from falling off during use. The middle of the driving shaft 2 is a hollow structure, and the hollow part is connected to the center rod 3. The center rod 3 is connected to the driving shaft 2 during use. In order to achieve the purpose of being suitable for different holes, a plurality of support plates 4 are arranged on the circumference of the center rod 3. The front end of the support plate 4 is arc-shaped, and each of the support plates 4 is rotated on one side close to the center rod 3. A plurality of swing rods 5 are connected, and the other side of each of the swing rods 5 is rotatably connected to the center rod 3. A sandpaper 6 is fixedly connected to the side of each support plate 4 away from the center rod 3. The sandpaper 6 is pasted on the outer side of the support plate 4. In actual use, sandpapers 6 with different roughness can be selected. The sandpapers 6 pasted on the support plates 4 of the sealing shell 1 with the same center rod 3 have the same roughness. When in use, the driving shaft 2 rotates to generate centrifugal force to make the support plate 4 slide to the side away from the center rod 3, and the swing rod 5 rotates relative to the center rod 3. At this time, the sandpaper 6 on the outer side of the support plate 4 rubs the inner side of the hole, and the support plate 4 adapts to the size of the hole.
[0023] Embodiment 2, based on embodiment 1, Figure 2It is given that, in order to achieve a better purpose, a tensioning rod 7 is slidably connected to the middle part of the center rod 3, and a plurality of holes are formed at the rear end of the tensioning rod 7. A plurality of steel wire ropes 8 are fixedly connected to the front end of the tensioning rod 7, and the steel wire ropes 8 penetrate the middle part of the center rod 3. The other end of each of the steel wire ropes 8 is fixedly connected to the corresponding support plate 4. A push spring 9 is fixedly sleeved on the outer side of the tensioning rod 7, and the other end of the push spring 9 is fixedly connected to the center rod 3. When in use, the center rod 3 rotates so that the support plate 4 moves to the side away from the center rod 3 under the influence of centrifugal force. At the same time, the steel wire rope 8 pulls the tensioning rod 7 to compress and deform the push spring 9. When the rotation speed of the center rod 3 decreases, the centrifugal force decreases, and the push spring 9 resets the tensioning rod 7. At the same time, the steel wire rope 8 pulls the support plate 4 toward the center rod 3.
[0024] Embodiment 3, based on embodiment 1, Figure 3 and Figure 4 It is given that in order to achieve the purpose of rotating and grinding holes, a first pneumatic shell 10 is fixedly connected to the inner rear side of the sealed shell 1, and an air pump interface is fixedly connected to the rear side of the first pneumatic shell 10. The air pump interface adopts an interface with a function of controlling air conduction. A plurality of air outlets are provided on the front side of the first pneumatic shell 10, and a first turbine 11 is fixedly connected to the middle part of the first pneumatic shell 10. The first turbine 11 is slidably connected to the drive shaft 2. When in use, the air pump interface is connected to the air pump through an air pipe. The air pipe and the air pump are prior art. At this time, air enters the first pneumatic shell 10, and at the same time, the air drives the first turbine 11 to rotate. At this time, the first turbine 11 causes the drive shaft 2 to rotate, and at the same time, air is discharged from the air outlet of the first pneumatic shell 10, and the air enters the center rod 3 through the sealed shell 1 and the drive shaft 2. Then the air is discharged through the gap between the wire rope 8 and the center rod 3. The air blows away the debris generated by grinding and cools down the grinding position.
[0025] Embodiment 4, based on embodiment 1, Figure 3 and Figure 4It is given that in order to improve the safety during surface grinding, the lower end of the sealed housing 1 is fixedly connected to a second pneumatic housing 12, the lower part of the second pneumatic housing 12 is fixedly connected to an air pump interface, the air pump interface adopts an interface with a function of controlling air conduction, the upper end of the second pneumatic housing 12 has a plurality of exhaust holes, the middle part of the second pneumatic housing 12 is rotatably connected to a second turbine 13, the upper end of the second turbine 13 is fixedly connected to a cam 14, the sealed housing 1 of the drive shaft 2 is slidably sleeved with a push slider 15, the push slider 15 and the sealed housing 1 sliding connection, push the lower end of the slider 15 to contact the cam 14, when in use, connect the air pump interface to the air pump through the air pipe, the air pipe and the air pump are existing technologies, at this time, air enters the second pneumatic housing 12, and at the same time, the air drives the second turbine 13 and the cam 14 to rotate, the cam 14 pushes the slider 15 to make the drive shaft 2 slide backward, and the drive shaft 2 makes the center rod 3 slide back and forth to avoid the tool from moving due to rotating grinding, and at the same time, the air is discharged through the exhaust hole at the upper end of the second pneumatic housing 12, and then discharged through the drive shaft 2 and the center rod 3, and the debris generated at the grinding position is blown away.
[0026] Embodiment 5, based on embodiment 4, Figure 3 It is given that, in order to achieve the purpose of repeated friction, a plane bearing 16 is fixedly connected to the middle part of the driving shaft 2, and a support spring 17 is fixedly connected to the other side of the plane bearing 16, and the other end of the support spring 17 is fixedly connected to the sealing shell 1. When in use, the cam 14 and the pushing slider 15 make the driving shaft 2 and the center rod 3 slide backward, and when the cam 14 does not support the pushing slider 15, the support spring 17 makes the driving shaft 2 slide forward and reset, and then the cam 14 pushes the driving shaft 2 to slide backward again. At this time, the driving shaft 2 and the center rod 3 slide back and forth repeatedly, and when the driving shaft 2 rotates, the plane bearing 16 rotates relative to each other twice back and forth to prevent the support spring 17 from rotating.
[0027] Embodiment 6, based on embodiment 1, Figure 1 and Figure 3 It is given that, in order to achieve the purpose of facilitating holding and use, a handle 18 is fixedly connected to the left side of the sealing shell 1. When in use, the sealing shell 1 is held with one hand and the handle 18 is held with the other hand, so as to improve the stability of the mold when in use.
[0028] When the utility model is used, the center rod 3 is connected to the drive shaft 2. When it is necessary to grind the hole position, the air pipe is connected to the pneumatic interface on the rear side of the first pneumatic shell 10, and then the switch of the air pump interface is turned on to let air in. Then, the sealed shell 1 is held with one hand, and the handle 18 is held with the other hand to improve the stability of the grinding tool when in use. At this time, air enters the first pneumatic shell 10, and at the same time, the air drives the first turbine 11 to rotate. At this time, the first turbine 11 rotates the drive shaft 2. The rotation of the drive shaft 2 generates centrifugal force to make the support plate 4 slide to the side away from the center rod 3, and at the same time, the swing rod 5 rotates relative to the center rod 3. At this time, the sandpaper 6 on the outside of the support plate 4 rubs the inside of the hole, and the support plate 4 adapts to the size of the hole. At the same time, air is discharged from the air outlet of the first pneumatic shell 10, and the air enters the center rod 3 through the sealed shell 1 and the drive shaft 2. Then, the air is discharged through the gap between the wire rope 8 and the center rod 3. The air blows away the debris generated by grinding and grinds the grinding position. The air pipe is cooled down, and the air pipe is closed after the grinding is completed. At this time, the rotation speed of the center rod 3 is reduced and the centrifugal force is reduced, and the spring 9 is pushed to reset the tension rod 7. At the same time, the wire rope 8 pulls the support plate 4 to move toward the center rod 3. When it is necessary to grind the plane or the curved surface, the air pipe is connected to the air pump interface of the second pneumatic housing 12, and then the switch of the air pump interface is turned on to let the air enter. At this time, the air enters the second pneumatic housing 12, and at the same time, the air drives the second turbine 13 and the cam 14 to rotate. The cam 14 slides the drive shaft 2 backward by pushing the slider 15. When the cam 14 does not support the slider 15, the support spring 17 makes the drive shaft 2 slide forward and reset. Then the cam 14 pushes the drive shaft 2 to slide backward again. At this time, the drive shaft 2 and the center rod 3 slide back and forth repeatedly. When the drive shaft 2 rotates, the plane bearing 16 rotates back and forth twice relative to each other to prevent the support spring 17 from rotating. At this time, the sandpaper 6 slides back and forth relative to the grinding plane to prevent the grinding tool from moving significantly relative to the grinding position during grinding.
[0029] The utility model has novel structure, ingenious conception and simple and convenient operation. The design effectively increases the function of grinding holes, avoids the problem of inconvenient operation of grinding flat surfaces, and adds the functions of cleaning debris and cooling.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A lightweight chassis mold, comprising a sealed housing (1), characterized in that: A driving shaft (2) is rotatably connected to the middle of the sealing shell (1), a detachable center rod (3) is threadedly connected to the front end of the driving shaft (2), a plurality of support plates (4) are provided around the center rod (3), a plurality of swing rods (5) are rotatably connected to one side of each support plate (4) close to the center rod (3), the other side of each swing rod (5) is rotatably connected to the center rod (3), and a sandpaper (6) is fixedly connected to one side of each support plate (4) away from the center rod (3).
2. A lightweight chassis abrasive tool according to claim 1, characterized in that: A tension rod (7) is slidably connected to the middle of the center rod (3), and a plurality of steel wire ropes (8) are fixedly connected to the front end of the tension rod (7), and the other end of each of the steel wire ropes (8) is fixedly connected to the corresponding support plate (4). A push spring (9) is fixedly sleeved on the outer side of the tension rod (7), and the other end of the push spring (9) is fixedly connected to the center rod (3).
3. The lightweight chassis abrasive tool according to claim 1, characterized in that: A first pneumatic housing (10) is fixedly connected to the inner rear side of the sealed housing (1), a first turbine (11) is fixedly connected to the middle of the first pneumatic housing (10), and the first turbine (11) is slidably connected to the drive shaft (2).
4. The lightweight chassis abrasive tool according to claim 1, characterized in that: The lower end of the sealing housing (1) is fixedly connected to a second pneumatic housing (12), the middle part of the second pneumatic housing (12) is rotatably connected to a second turbine (13), the upper end of the second turbine (13) is fixedly connected to a cam (14), and the sealing housing (1) of the drive shaft (2) is slidably sleeved with a push slider (15), the lower end of the push slider (15) is in contact with the cam (14).
5. A lightweight chassis abrasive tool according to claim 4, characterized in that: A plane bearing (16) is fixedly connected to the middle of the driving shaft (2), a support spring (17) is fixedly connected to the other side of the plane bearing (16), and the other end of the support spring (17) is fixedly connected to the sealing housing (1).
6. The lightweight chassis abrasive tool according to claim 1, characterized in that: A handle (18) is fixedly connected to the left side of the sealed housing (1).