Device for machining outer cylinder of motorcycle shock absorber

Abstract

The invention relates to the technical field of shock absorber machining, in particular to a motorcycle shock absorber outer cylinder machining device which comprises a workbench, a supporting assembly, a grinding assembly and a lifting assembly. In the supporting assembly, a lower supporting ring forms a plurality of independent stations through a plurality of sets of evenly-arranged lower rotary discs and lower guide frames; an upper supporting ring of the lifting assembly is correspondingly provided with a plurality of sets of upper rotating discs, the upper rotating discs and the lower rotating discs are matched so that multiple sets of shock absorber outer barrels (materials) can be synchronously assembled, each set of materials corresponds to one set of grinding pieces, simultaneous grinding of the multiple materials is achieved, and the grinding pieces are of a flexible structure of a back plate, a tensioning piece and a grinding belt. A tension spring in a tensioning piece applies continuous tension to a hinged plate through a first anchor point and a second anchor point, so that the polishing belt is always kept properly tensioned, the polishing belt can slightly deform along with the micro size deviation (such as roundness error) of the material outer barrel, and it is guaranteed that the surface roughness of the outer barrel is uniform.

Description

Technical Field

[0001] This invention relates to the field of shock absorber processing technology, specifically to a device for processing the outer cylinder of a motorcycle shock absorber. Background Technology

[0002] Motorcycle shock absorbers are the core components of the motorcycle chassis system. Their main functions are to absorb road impacts, suppress vehicle vibrations, and maintain stable contact between the wheels and the ground, directly affecting riding comfort, handling safety, and tire grip. The production process requires the use of a grinding device to treat the outer surface of the cylinder. Traditional grinding devices can only grind a single material, requiring workers to repeatedly load, unload, and feed the grinding equipment to ensure uniform grinding of the material. This is inconvenient to operate. Moreover, if a rigid grinding wheel is used to grind the outer surface of the cylinder, the grinding quality of the outer wall of the same batch of cylinders is easily affected by the feeding of the grinding device. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a device for machining the outer cylinder of a motorcycle shock absorber.

[0004] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a device for processing the outer cylinder of a motorcycle shock absorber, comprising a workbench, and further comprising: A support assembly includes a support column, a lower guide frame, a lower support ring, and a lower turntable. The support column is provided on the worktable. The lower guide frame is C-shaped and is arranged in several evenly distributed groups. The two sides of the lower guide frame are respectively connected to the support column and the lower support ring. Several groups of lower turntables are also provided on the lower support ring. A grinding assembly includes a drive component, a positive and negative toothed rod, a slider, a first hinge seat, a second hinge seat, a hinge rod, and a grinding component. A support column has several sets of sliding grooves around its periphery. A positive and negative toothed rod is rotatably mounted within each groove. The support column also has a drive component that drives the rotation of the positive and negative toothed rods. Two sets of symmetrically arranged sliders are also located within the sliding grooves. The sliders are threadedly connected to the positive and negative toothed rods. Each slider protrudes from the sliding groove and is also provided with a first hinge seat. A second hinge seat is provided at one end of the grinding component near the support column. Both ends of the hinge rod are hinged to the first and second hinge seats, respectively. The corresponding grinding components are positioned within corresponding lower guide frames. The lifting assembly includes side plates, a top plate, a lifter, an upper support ring, an upper turntable, and a first motor. Two sets of side plates are symmetrically arranged on the front and rear sides of the worktable, and a top plate is also provided on the two sets of side plates. The output end of the lifter passes through the top plate and is connected to the upper support ring. Several sets of upper turntables are arranged below the upper support ring. The output end of the first motor passes through the upper support ring and is connected to the upper turntables. Material that can contact the grinding workpiece is assembled between the corresponding upper and lower turntables.

[0005] To synchronously drive several sets of forward and reverse gears to rotate, the present invention improves upon this invention by including a cover, a gear ring, a drive gear, a driven gear, and a second motor. The cover is mounted on the support column, and the gear ring is mounted inside the cover. The upper part of the forward and reverse gears passes through the support column and is connected to the driven gear. The outer side of the driven gear meshes with the gear ring. The cover also contains a drive gear that meshes with several sets of driven gears. The output end of the second motor passes through the cover and is connected to the drive gear.

[0006] Preferably, the grinding component includes a back plate, a tensioning member, and a grinding belt. The back plate has second hinge seats symmetrically arranged at its upper and lower ends on the side near the support column, and the tensioning member is arranged at both ends on the other side of the back plate. The grinding belt is arranged on the side of the two sets of tensioning members away from the back plate.

[0007] Preferably, the tensioning member includes a third hinge seat, a hinge plate, a limiting plate, a tension spring, a first anchor point, and a second anchor point. The third hinge seat is symmetrically arranged on both sides of the other end of the back plate. The hinge plate is U-shaped, and its two free ends are hinged to the third hinge seat. The back plate is also provided with a limiting plate for limiting the hinge plate. The hinge plate is provided with a first anchor point at one end near the back plate, and a second anchor point is provided on the back plate. The two ends of the tension spring are respectively connected to the first anchor point and the second anchor point. The grinding strip is provided at the ends of the two sets of hinge plates away from the third hinge seat.

[0008] To facilitate stable assembly of the grinding belt, the present invention is improved by providing a mounting post at the end of the hinge plate away from the third hinge seat, and sleeves at both ends of the grinding belt, the sleeves being sleeved with the mounting post, and the side of the sleeves having a notch adapted to the hinge plate.

[0009] Preferably, the top wall of the sleeve is provided with bolts for connection to the mounting column.

[0010] Preferably, the upper part of the support column is provided with several sets of upper guide frames, the upper guide frames are in the shape of a c, there is a gap between the upper support ring and the several sets of upper guide frames, and reinforcing ribs are provided between the upper guide frame and the lower guide frame and the support column.

[0011] Preferably, the back plate is further provided with support rollers on the left and right sides that contact the inner walls of the corresponding upper and lower guide frames.

[0012] Preferably, the workbench is also provided with support legs at the four corners below.

[0013] Preferably, both the first motor and the second motor are servo motors.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a device for processing the outer cylinder of a motorcycle shock absorber, which has the following advantages: In this device for processing the outer cylinder of a motorcycle shock absorber, the lower support ring in the support assembly forms multiple independent workstations through several sets of evenly arranged "lower turntables + lower guide frames". The upper support ring of the lifting assembly is correspondingly equipped with several sets of upper turntables. The upper turntables and lower turntables work together to simultaneously assemble multiple sets of shock absorber outer cylinders (materials), and each set of materials corresponds to a set of grinding parts, realizing "simultaneous grinding of multiple materials". The grinding component adopts a flexible structure of "back plate + tensioning element + grinding belt" instead of the traditional rigid grinding wheel: the tension spring in the tensioning element applies continuous tension to the hinge plate through the first anchor point and the second anchor point, so that the grinding belt always maintains appropriate tension. During grinding, the grinding belt can deform slightly with the small dimensional deviations (such as roundness error) of the outer cylinder of the material, avoiding "over-grinding" or "under-grinding" of the rigid grinding wheel, and ensuring uniform surface roughness of the outer cylinder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a partial schematic diagram of the structure of the present invention; Figure 3 The structure of this invention Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 This is a partial explosion diagram of the structure of the present invention; Figure 5 The structure of this invention Figure 4 Enlarged view of a portion of point B in the middle; Figure 6 The structure of this invention Figure 4 Enlarged view of a portion of point C in the middle; Figure 7 This is a schematic front view of the outer cylinder of the shock absorber assembly in this invention. Figure 8 The structure of this invention Figure 7 A magnified view of a portion of point D in the middle.

[0016] In the diagram: 1. Workbench; 2. Support column; 3. Lower guide frame; 4. Lower support ring; 5. Lower turntable; 6. Positive and negative toothed rods; 7. Slider; 8. First hinge seat; 9. Second hinge seat; 10. Hinge rod; 11. Side plate; 12. Top plate; 13. Lifter; 14. Upper support ring; 15. Upper turntable; 16. First motor; 17. Cover; 18. Gear ring; 19. Drive gear; 20. Driven gear; 21. Second motor; 22. Back plate; 23. Grinding belt; 24. Third hinge seat; 25. Hinge plate; 26. Limiting plate; 27. Tension spring; 28. First anchor point; 29. ​​Second anchor point; 30. Mounting column; 31. Sleeve; 32. Bolt; 33. Upper guide frame; 34. Reinforcing rib; 35. Support roller; 36. Support leg. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1-8 A device for machining the outer cylinder of a motorcycle shock absorber, comprising a worktable 1, and further comprising: The support assembly includes a support column 2, a lower guide frame 3, a lower support ring 4, and a lower turntable 5. The support column 2 is provided on the worktable 1. The lower guide frame 3 is C-shaped and is arranged in several evenly distributed groups. The two sides of the lower guide frame 3 are respectively connected to the support column 2 and the lower support ring 4. Several groups of lower turntables 5 are also provided on the lower support ring 4. A grinding assembly includes a drive component, a positive and negative toothed rod 6, a slider 7, a first hinge seat 8, a second hinge seat 9, a hinge rod 10, and a grinding component. The support column 2 has several sets of sliding grooves around its periphery. The positive and negative toothed rod 6 is rotatably mounted within these grooves. The support column 2 also has a drive component that drives the rotation of the several sets of positive and negative toothed rods 6. Two sets of symmetrically arranged sliders 7 are also mounted within the sliding grooves. The sliders 7 are threadedly connected to the positive and negative toothed rods 6. The sliders 7 protrude from the sliding grooves and are also provided with the first hinge seat 8. The grinding component has a second hinge seat 9 at one end near the support column 2. The two ends of the hinge rod 10 are hinged to the first hinge seat 8 and the second hinge seat 9, respectively. The corresponding grinding components are positioned within the corresponding lower guide frame 3. The lifting assembly includes a side plate 11, a top plate 12, a lifter 13, an upper support ring 14, an upper turntable 15, and a first motor 16. Two sets of side plates 11 are symmetrically arranged on the front and rear sides of the worktable 1. A top plate 12 is also arranged on the two sets of side plates 11. The output end of the lifter 13 passes through the top plate 12 and is connected to the upper support ring 14. Several sets of upper turntables 15 are arranged below the upper support ring 14. The output end of the first motor 16 passes through the upper support ring 14 and is connected to the upper turntables 15. Material that can contact the grinding workpiece is assembled between the corresponding upper turntables 15 and lower turntables 5.

[0019] The workbench 1 provides stable support for the support column 2 and the two sets of side plates 11. The four corners of the workbench 1 are also provided with support legs 36. The two sets of side plates 11 stably support the top plate 12. In this embodiment, the lifting device 13 adopts two sets of hydraulic cylinders. The two sets of hydraulic cylinders can achieve synchronous lifting through the servo control system. Initially, the lifting device 13 is in the retracted state. The gap between the corresponding upper turntable 15 and lower turntable 5 is greater than the length of the cylinder. According to the end of the cylinder, the lower turntable 5 is also provided with a column supporting the inner wall of the cylinder. The upper turntable 15 is adapted to the upper end of the cylinder. The lifting device 13 drives the upper support ring 14 to descend. The upper turntable 15 cooperates with the lower turntable 5 to limit the cylinder in a vertical state. At this time, the first motor 16 can drive the upper turntable 15 to rotate, thereby driving the cylinder to rotate.

[0020] In this embodiment, the driving component includes a cover 17, a gear ring 18, a driving gear 19, a driven gear 20, and a second motor 21. The cover 17 is provided on the support column 2, and the gear ring 18 is provided inside the cover 17. The positive and negative toothed rods 6 pass through the support column 2 and are connected to the driven gear 20. The outer side of the driven gear 20 meshes with the gear ring 18. The cover 17 is also provided with a driving gear 19 that meshes with several sets of driven gears 20. The output end of the second motor 21 passes through the cover 17 and is connected to the driving gear 19. Initially, the distance between the two sets of sliders 7 is large, and the grinding part is located near the end of the support column 2. The second motor 21 (servo motor) is started, and through the transmission chain of "driving gear 19 → gear ring 18 → driven gear 20", it drives all the positive and negative toothed rods 6 in the slide groove to rotate synchronously. Since the slider 7 is threadedly connected to the positive and negative toothed rod 6 (the two sets of sliders 7 are adapted to the positive and negative toothed sections respectively), when the positive and negative toothed rod 6 rotates, it will drive the two sets of sliders 7 to move closer to each other along the slide groove, and then push the grinding part to move closer to the material through "first hinge seat 8 → hinge rod 10 → second hinge seat 9" so as to grind the material. In this embodiment, a protective plate can be added inside the slide groove. The protective plate is located between the two sets of sliders 7. Elastic dust covers can be installed between the sliders 7, the protective plate, and the inner wall of the slide groove to prevent waste chips from affecting the connection between the positive and negative toothed rods 6 and the sliders 7 during the grinding process. As needed, an oil supply device can also be added to the top wall of the support column 2. The output end of the oil supply device extends into the slide groove and contacts the positive and negative toothed rods 6 to ensure the stability of the contact between the sliders 7 and the positive and negative toothed rods 6.

[0021] In practical use, the grinding component needs to fit the material. Therefore, the grinding component includes a back plate 22, tensioning components, and a grinding belt 23. The back plate 22 has second hinge seats 9 symmetrically arranged at its upper and lower ends near the support column 2. Tensioning components are arranged at both ends of the other side of the back plate 22. The grinding belt 23 is arranged on the side of the two sets of tensioning components away from the back plate 22. The tensioning component includes a third hinge seat 24, a hinge plate 25, a limiting plate 26, a tension spring 27, a first anchor point 28, and a second anchor point 29. The other end of the back plate 22 has two... A third hinge seat 24 is arranged symmetrically on both sides. The hinge plate 25 is U-shaped and its two free ends are hinged to the third hinge seat 24. A limiting plate 26 is also provided on the back plate 22 to limit the position of the hinge plate 25. A first anchor point 28 is provided on the end of the hinge plate 25 near the back plate 22. A second anchor point 29 is provided on the back plate 22. The two ends of the tension spring 27 are respectively connected to the first anchor point 28 and the second anchor point 29. The grinding belt 23 is provided on the end of the two sets of hinge plates 25 away from the third hinge seat 24.

[0022] As the grinding part feeds toward the material, the middle part of the grinding belt 23 is squeezed. The hinge plate 25 is provided with a mounting post 30 at one end away from the third hinge seat 24. The grinding belt 23 is provided with sleeves 31 at both ends. The sleeves 31 are sleeved with the mounting post 30. The side of the sleeves 31 is provided with a notch that matches the hinge plate 25. The sleeves 31 pull the hinge plate 25 toward the middle part of the two sets of third hinge seats 24. At this time, the tension spring 27 is stretched and the grinding belt 23 adheres to the material. The tension spring 27 of the tensioning element will automatically adjust the tension according to the deformation. If the local diameter of the material is slightly larger, the grinding belt 23 will "adaptively yield" through the slight rotation of the hinge plate 25 around the third hinge seat 24, and the tension spring 27 will be stretched synchronously to keep the grinding belt 23 taut. If the local diameter of the material is slightly smaller, the tension spring 27 will be stretched so that the grinding belt 23 always fits the surface of the material, avoiding "missed grinding" or "over-grinding". When the grinding part moves away from the material, the tension spring 27 drives the hinge plate 25 to return to its original position, and the limiting plate 26 supports the hinge plate 25, so that the two sets of hinge plates 25 unfold in a V shape.

[0023] In the tensioning component of the grinding part, the tension spring 27, through the tension of "first anchor point 28 (hinge plate 25) → second anchor point 29 (back plate 22)," causes the C-shaped hinge plate 25 to rotate slightly around the third hinge seat 24, ultimately causing the grinding belt 23 to tighten (the limiting plate 26 can limit the excessive rotation of the hinge plate 25 to avoid excessive tension of the grinding belt 23). At this time, the grinding belt 23 is in a "pre-tensioned standby state" and has flexible deformation capability. When the material rotates, its outer cylinder surface undergoes "relative sliding friction" with the grinding belt 23. The grinding belt 23 uses its own abrasive (such as sandpaper or grinding wheel particles) to grind burrs, scratches, oxide layers, etc. on the outer cylinder surface of the material. At the same time, the tension spring 27 of the tensioning element continuously provides "dynamic tension force" so that the grinding belt 23 is always adapted to the small dimensional deviations (such as roundness error or local protrusions) of the outer cylinder of the material.

[0024] In actual use, the top wall of the sleeve 31 is provided with bolts 32 that are connected to the mounting post 30. By removing and installing bolts 32, the grinding belt 23 with sleeve 31 can be easily removed for replacement.

[0025] In this embodiment, the upper part of the support column 2 is provided with several sets of upper guide frames 33. The upper guide frames 33 are U-shaped. There is a gap between the upper support ring 14 and the several sets of upper guide frames 33. The upper guide frames 33 and the lower guide frames 3 are provided with reinforcing ribs 34 between the support column 2 and the upper guide frames 33. The back plate 22 is also provided with support rollers 35 on the left and right sides that contact the inner walls of the corresponding upper guide frames 33 and lower guide frames 3. The back plate 22 is supported not only by the first hinge seat 8, the second hinge seat 9 and the hinge rod 10, but also by the support roller 35 and the upper guide frame 33 and the lower guide frame 3, to ensure the stability of the back plate 22 feed, and thus ensure the stability of the material during grinding. The reinforcing rib 34 ensures the connection strength between the upper guide frame 33 and the lower guide frame 3 and the support column 2.

[0026] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0027] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0028] 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.

Claims

1. A device for machining the outer cylinder of a motorcycle shock absorber, comprising a worktable, characterized in that, Also includes: A support assembly includes a support column, a lower guide frame, a lower support ring, and a lower turntable. The support column is provided on the worktable. The lower guide frame is C-shaped and is arranged in several evenly distributed groups. The two sides of the lower guide frame are respectively connected to the support column and the lower support ring. Several groups of lower turntables are also provided on the lower support ring. A grinding assembly includes a drive component, a positive and negative toothed rod, a slider, a first hinge seat, a second hinge seat, a hinge rod, and a grinding component. A support column has several sets of sliding grooves around its periphery. A positive and negative toothed rod is rotatably mounted within each groove. The support column also has a drive component that drives the rotation of the positive and negative toothed rods. Two sets of symmetrically arranged sliders are also located within the sliding grooves. The sliders are threadedly connected to the positive and negative toothed rods. Each slider protrudes from the sliding groove and is also provided with a first hinge seat. A second hinge seat is provided at one end of the grinding component near the support column. Both ends of the hinge rod are hinged to the first and second hinge seats, respectively. The corresponding grinding components are positioned within corresponding lower guide frames. The lifting assembly includes side plates, a top plate, a lifter, an upper support ring, an upper turntable, and a first motor. Two sets of side plates are symmetrically arranged on the front and rear sides of the worktable, and a top plate is also provided on the two sets of side plates. The output end of the lifter passes through the top plate and is connected to the upper support ring. Several sets of upper turntables are arranged below the upper support ring. The output end of the first motor passes through the upper support ring and is connected to the upper turntables. Material that can contact the grinding workpiece is assembled between the corresponding upper and lower turntables.

2. The apparatus for machining the outer cylinder of a motorcycle shock absorber according to claim 1, characterized in that, The driving component includes a cover, a gear ring, a driving gear, a driven gear, and a second motor. The cover is mounted on the support column, and the gear ring is mounted inside the cover. The positive and negative gear rods pass through the support column and are connected to the driven gear. The outer side of the driven gear meshes with the gear ring. The cover also contains a driving gear that meshes with several sets of driven gears. The output end of the second motor passes through the cover and is connected to the driving gear.

3. The apparatus for machining the outer cylinder of a motorcycle shock absorber according to claim 2, characterized in that, The grinding component includes a back plate, tensioning members, and a grinding belt. The back plate has second hinge seats symmetrically arranged at its upper and lower ends on the side near the support column. The tensioning members are arranged at both ends on the other side of the back plate. The grinding belt is arranged on the side of the two sets of tensioning members away from the back plate.

4. The apparatus for machining the outer cylinder of a motorcycle shock absorber according to claim 3, characterized in that, The tensioning component includes a third hinge seat, a hinge plate, a limiting plate, a tension spring, a first anchor point, and a second anchor point. The third hinge seat is symmetrically arranged on both sides of the other end of the back plate. The hinge plate is U-shaped, and its two free ends are hinged to the third hinge seat. The back plate is also provided with a limiting plate to limit the hinge plate. The hinge plate is provided with a first anchor point near the back plate, and a second anchor point is provided on the back plate. The two ends of the tension spring are respectively connected to the first anchor point and the second anchor point. The grinding strip is provided at the ends of the two sets of hinge plates away from the third hinge seat.

5. The apparatus for machining the outer cylinder of a motorcycle shock absorber according to claim 4, characterized in that, The hinge plate has a mounting post at one end away from the third hinge seat, and the grinding belt has sleeves at both ends. The sleeves are fitted with the mounting post, and the side of the sleeves has a notch that matches the hinge plate.

6. The apparatus for machining the outer cylinder of a motorcycle shock absorber according to claim 5, characterized in that, The top wall of the sleeve is provided with bolts that connect to the mounting column.

7. The apparatus for machining the outer cylinder of a motorcycle shock absorber according to claim 6, characterized in that, The upper part of the support column is provided with several sets of upper guide frames. The upper guide frames are U-shaped. There is a gap between the upper support ring and the several sets of upper guide frames. Reinforcing ribs are provided between the upper guide frame and the lower guide frame and the support column.

8. The apparatus for machining the outer cylinder of a motorcycle shock absorber according to claim 7, characterized in that, The back plate is also provided with support rollers on the left and right sides that contact the inner walls of the corresponding upper and lower guide frames.

9. The apparatus for machining the outer cylinder of a motorcycle shock absorber according to claim 8, characterized in that, The workbench is also equipped with support legs at the four corners below.

10. The apparatus for machining the outer cylinder of a motorcycle shock absorber according to claim 9, characterized in that, Both the first motor and the second motor are servo motors.

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