Cylindrical barrel part end face polishing clamping and fastening assembly

Abstract

The utility model relates to a cylinder type cylindrical part end face polishing clamping fastening assembly, the cylinder type cylindrical part end face polishing clamping fastening assembly includes horizontal base, diameter adjusting device, locking device, and diameter adjusting device installs on horizontal base, wherein, diameter adjusting device includes gear, guide wheel, guide piece, clamping block, and the gear is configured to be rotated according to the outer diameter of the part to be polished, the guide wheel is engaged with the gear and is arranged on the guide piece, so that the rotation of the gear drives the guide wheel to rotate, the clamping block is installed between the guide wheel and the guide piece, so that the rotation of the guide wheel drives the clamping block to stretch out or retract along the radial direction, when the extension amount of the clamping block is adjusted to correspond to the outer diameter of the part to be polished, the clamping block clamps the part to be polished, wherein, the locking device is used to lock the guide wheel on the guide piece after the clamping block clamps the part to be polished.

Description

Technical Field

[0001] This utility model relates to a grinding and clamping fastening assembly for the end face of cylindrical parts, belonging to the technical field of machining auxiliary tools. Background Technology

[0002] Out-of-tolerance holes generated during aircraft manufacturing and maintenance are typically compensated for using bushings or plungers. These structures are cylindrical hollow or solid parts, and their outer surfaces are usually fixed to the structural body. In particular, cylindrical hollow parts (also known as cylindrical cylindrical parts or bushing-type cylindrical parts) are characterized by thin walls and a cylindrical shape, making it difficult to grind their cross-sections.

[0003] Current technology typically uses a bench vise to clamp cylindrical parts such as bushings for grinding.

[0004] However, when using a bench vise to clamp cylindrical bushings, it is easy to cause the bushings to be squeezed and deformed. If the clamping is not secure, it will affect the surface polishing quality of the part. Because cylindrical bushings are often too small, they can also cause safety accidents and injure the operator's hands. Utility Model Content

[0005] One objective of this invention is to provide a clamping and fastening assembly for grinding the end face of cylindrical parts, which can overcome at least some of the defects of the prior art, avoid the squeezing and deformation of cylindrical parts during end face grinding, effectively clamp cylindrical parts of different diameters, improve the grinding quality of parts, and at the same time improve operating efficiency and operating safety.

[0006] The above-mentioned objective of this utility model is achieved by a cylindrical part end face grinding clamping fastening assembly, which includes a horizontal base, a diameter adjustment device, and a locking device, wherein the diameter adjustment device is installed on the horizontal base;

[0007] The diameter adjustment device includes a gear, a guide wheel, a guide member, and a clamping block. The gear is configured to rotate according to the outer diameter of the part to be polished. The guide wheel meshes with the gear and is disposed on the guide member, so that the rotation of the gear drives the guide wheel to rotate. The clamping block is installed between the guide wheel and the guide member, so that the rotation of the guide wheel drives the clamping block to extend or retract radially. When the extension amount of the clamping block is adjusted to correspond to the outer diameter of the part to be polished, the clamping block clamps the part to be polished.

[0008] The locking device is used to lock the guide wheel onto the guide member after the clamping block clamps the part to be ground.

[0009] According to the above technical solution, the end face grinding clamping and fastening assembly of the present invention can achieve the following beneficial technical effects: avoid squeezing and deformation of the cylindrical part during end face grinding, effectively clamp cylindrical parts of different diameters, improve the grinding quality of the parts, and at the same time improve the operating efficiency and operating safety.

[0010] Preferably, the cylindrical part end face grinding clamping fastening assembly further includes a height adjustment indicator for adjusting and indicating the height of the part to be ground after grinding.

[0011] Preferably, the diameter adjustment device further includes an outer cover for covering at least a portion of the gear, the guide wheel, the guide member, and the clamping block.

[0012] Preferably, the diameter adjustment device further includes fasteners for securing the outer cover and the guide to the horizontal base.

[0013] Preferably, the guide member is provided with a radially extending first guide groove, the guide wheel is provided with a second guide groove that extends obliquely relative to the radial direction, the clamping block is provided with a guide protrusion at its bottom and a guide protrusion at its top, the guide protrusion is provided in the first guide groove and the guide protrusion is provided in the second guide groove, so that the rotation of the guide wheel drives the clamping block to extend or retract radially.

[0014] Preferably, the second guide groove has an inclination angle of 30 to 60 degrees relative to the radial direction.

[0015] Preferably, the number of clamping blocks is three, and the three clamping blocks are arranged circumferentially along the part to be polished.

[0016] Preferably, the three clamping blocks are arranged at even intervals along the circumference of the part to be polished.

[0017] Preferably, the locking device is a locking screw that passes through a hole in the guide wheel and abuts against the upper surface of the guide member, thereby locking the guide wheel onto the guide member.

[0018] Preferably, the height adjustment indicator includes a height scale, a height indicator, a positioning plate, and a locking device. The height indicator is movably mounted on the height scale and is used to indicate the positioning height of the positioning plate. The positioning plate is fixed to the height indicator and can be positioned to match the post-grinding height of the part to be ground. The locking device is configured to lock the positioning plate after it is positioned to the post-grinding height of the part to be ground, thereby locking the positioning plate at the post-grinding height of the part to be ground. Attached Figure Description

[0019] Figure 1 This is a general schematic diagram of a cylindrical part end face grinding, clamping and fastening assembly according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the diameter adjustment device and locking device of the end face grinding clamping fastening assembly for cylindrical parts according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the height adjustment indicator device of the end face grinding clamping fastening assembly for cylindrical parts according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the use of the end face grinding, clamping and fastening assembly for cylindrical parts according to an embodiment of this utility model.

[0023] Figure 5 This is an exploded view of an embodiment of the present invention: a cylindrical part end face grinding, clamping and fastening assembly.

[0024] List of reference numerals

[0025] 1: Horizontal base;

[0026] 2: Diameter adjustment device;

[0027] 3: Locking device;

[0028] 4: Height adjustment indicator;

[0029] 5: Gear;

[0030] 6: Guide wheel;

[0031] 7: Guide components;

[0032] 8: Clamping block;

[0033] 9: Fasteners;

[0034] 10: Outer cover;

[0035] 11: Height gauge;

[0036] 12: Altitude indicator;

[0037] 13: Positioning plate;

[0038] 14: Locking device;

[0039] 21: First guide groove;

[0040] 22: Second guide groove;

[0041] 81: Guide ridge;

[0042] 82: Guide post;

[0043] P: Cylindrical part. Detailed Implementation

[0044] The following describes specific embodiments of this utility model. It should be noted that, in order to provide a concise description, this specification cannot provide a detailed description of all features of the actual embodiments. It should be understood that, in the actual implementation of any embodiment, just as in any engineering or design project, various specific decisions are often made to achieve the developer's specific goals and to meet system-related or business-related constraints, and this can change from one embodiment to another. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this utility model, some design, manufacturing, or production modifications based on the technical content disclosed in this disclosure are merely conventional technical means and should not be construed as insufficient content of this disclosure.

[0045] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in the specification and claims of this utility model patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar words mean that the element or object preceding "comprising" or "including" encompasses the element or object listed following "comprising" or "including" and its equivalents, and do not exclude other elements or objects. The terms "connected" or "linked" and similar words are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0046] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0047] Figure 1 This is a general schematic diagram of a cylindrical part end face grinding, clamping and fastening assembly according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the diameter adjustment device and locking device of the end face grinding clamping fastening assembly for cylindrical parts according to an embodiment of the present invention. Figure 3This is a schematic diagram of the height adjustment indicator device of the end face grinding clamping fastening assembly for cylindrical parts according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the use of the end face grinding, clamping and fastening assembly for cylindrical parts according to an embodiment of this utility model. Figure 5 This is an exploded view of an embodiment of the present invention: a cylindrical part end face grinding, clamping and fastening assembly.

[0048] The term "grinding and clamping assembly for cylindrical part end face" as used in this application refers to an assembly used to clamp and fasten a cylindrical part during grinding of its end face. The term "diameter adjustment device" as used in this application refers to a device that can be adjusted to clamp the cylindrical part according to its outer diameter (also known as the part to be ground).

[0049] like Figures 1 to 5 As shown, according to one embodiment of the present invention, the end face grinding clamping fastening assembly for cylindrical parts includes a horizontal base 1, a diameter adjustment device 2, and a locking device 3, wherein the diameter adjustment device 2 is mounted on the horizontal base 1.

[0050] The diameter adjustment device 2 includes a gear 5, a guide wheel 6, a guide member 7, and a clamping block 8. The gear 5 is configured to rotate according to the outer diameter of the cylindrical part P (also known as the part to be ground). The guide wheel 6 meshes with the gear 5 and is mounted on the guide member 7. Thus, the rotation of the gear 5 drives the guide wheel 6 to rotate. The clamping block 8 is installed between the guide wheel 6 and the guide member 7. Thus, the rotation of the guide wheel 6 drives the clamping block 8 to extend (inward) or retract (outward) radially. When the extension amount of the clamping block 8 is adjusted to correspond to the outer diameter of the part to be ground, the clamping block 8 clamps the part to be ground.

[0051] The locking device 3 is used to lock the guide wheel 6 onto the guide member 7 after the clamping block 8 clamps the part to be polished.

[0052] According to the above technical solution, the end face grinding clamping and fastening assembly of the present invention can achieve the following beneficial technical effects: avoid squeezing and deformation of the cylindrical part during end face grinding, effectively clamp cylindrical parts of different diameters, improve the grinding quality of the parts, and at the same time improve the operating efficiency and operating safety.

[0053] In some embodiments, such as Figures 1 to 5As shown, the cylindrical part end face grinding clamping and fastening assembly also includes a height adjustment indicator 4, used to adjust and indicate the post-grinding height of the part to be ground. In other words, the height adjustment indicator 4 can be adjusted according to the required post-grinding height of the part and indicates (displays) that required post-grinding height, so that the grinding operator can clearly see the required post-grinding height of the part to be ground, ensuring that the final post-grinding height is controllable.

[0054] In some embodiments, such as Figures 1 to 5 As shown, the diameter adjustment device 2 also includes an outer cover 10 for covering at least a portion of the gear 5, guide wheel 6, guide member 7, and clamping block 8. Therefore, the outer cover 10 can protect at least a portion of the gear 5, guide wheel 6, guide member 7, and clamping block 8. It should be noted that... Figure 2 and Figure 5 In order to clearly show the structure of the various components (gear 5, guide wheel 6, guide member 7, clamping block 8) inside the outer cover 10, the outer cover 10 is shown as being located below the gear 5, guide wheel 6, guide member 7, and clamping block 8. However, in reality... Figure 1 and Figure 4 As shown, the outer cover 10 should cover at least a portion of the gear 5, guide wheel 6, guide member 7, and clamping block 8 from top to bottom.

[0055] Preferably, such as Figure 1 and Figure 4 As shown, a groove is provided on the side of the outer cover 10 so that a portion of the gear 5 can be exposed, thereby facilitating the grinding operator to rotate the gear 5.

[0056] In some embodiments, such as Figures 1 to 5 As shown, the diameter adjustment device 2 also includes a fastener 9 for securing the outer cover 10 and the guide member 7 to the horizontal base 1. Therefore, the outer cover 10 and the guide member 7 remain stationary regardless of how the gear 5 and the guide wheel 6 rotate.

[0057] In some embodiments, such as Figures 1 to 5 As shown, the guide member 7 is provided with a radially extending first guide groove 21, the guide wheel 6 is provided with a second guide groove 22 that extends obliquely relative to the radial direction, the clamping block 8 is provided with a guide protrusion 81 at its bottom and a guide protrusion 82 at its top. The guide protrusion 81 is provided in the first guide groove 21 and the guide protrusion 82 is provided in the second guide groove 22, so that the rotation of the guide wheel 6 drives the clamping block 8 to extend or retract radially.

[0058] For example, such as Figure 2As shown, when the grinding operator rotates gear 5 counterclockwise (viewed from top to bottom), guide wheel 6 rotates clockwise (viewed from top to bottom), and second guide groove 22 also rotates gradually with guide wheel 6. Since clamping block 8 is constrained by first guide groove 21 in circumferential position by guide protrusion 81, its circumferential position remains unchanged. However, the rotation of second guide groove 22 will drive guide protrusion 82 to move radially inward, thereby driving clamping block 8 to extend radially inward.

[0059] Similarly, such as Figure 2 As shown, when the grinding operator rotates gear 5 clockwise (viewed from top to bottom), guide wheel 6 rotates counterclockwise (viewed from top to bottom), and second guide groove 22 also rotates gradually with guide wheel 6. Since clamping block 8 is constrained by first guide groove 21 in circumferential position by guide protrusion 81, its circumferential position remains unchanged. However, the rotation of second guide groove 22 will drive guide protrusion 82 to move radially outward, thereby driving clamping block 8 to retract radially outward.

[0060] In some embodiments, such as Figures 1 to 5 As shown, the second guide groove 22 has an inclination angle of 30 to 60 degrees relative to the radial direction.

[0061] Preferably, such as Figures 1 to 5 As shown, the second guide groove 22 is tilted at an angle of approximately 45 degrees relative to the radial direction.

[0062] In some embodiments, such as Figures 1 to 5 As shown, there are three clamping blocks 8, which are arranged circumferentially along the part to be ground. Therefore, the force applied by the three jaws (three clamping blocks) ensures that the thin wall of the cylindrical part will not deform due to compression.

[0063] In some embodiments, such as Figures 1 to 5 As shown, three clamping blocks 8 are evenly spaced along the circumference of the part to be ground. That is, one clamping block 8 is arranged every 120 degrees along the circumference of the part to be ground. Therefore, it better ensures that the thin wall of the cylindrical part will not deform due to compression.

[0064] In some embodiments, such as Figures 1 to 5 As shown, the locking device 3 is a locking screw that passes through a hole in the guide wheel 6 and abuts against the upper surface of the guide member 7, thereby locking the guide wheel 6 onto the guide member 7. Therefore, the locking device 3 can fix the gear 5 so that it does not rotate, thereby fixing the part to be ground.

[0065] In some embodiments, such as Figures 1 to 5As shown, the height adjustment indicator 4 includes a height scale 11, a height indicator 12 (e.g., a digital height indicator), a positioning plate 13, and a locking device 14. The height indicator 12 is movably mounted on the height scale 11 and is used to indicate the positioning height of the positioning plate 13. The positioning plate 13 is fixed to the height indicator 12 and can be positioned to match the post-grinding height of the part to be ground. The locking device 14 is configured to lock the positioning plate 13 after it is positioned to the post-grinding height of the part to be ground (i.e., to lock the height indicator 12 to the height scale 11) to lock the positioning plate 13 at the post-grinding height of the part to be ground.

[0066] The operation steps for the end face grinding, clamping, and fastening assembly of the cylindrical part of this utility model can be as follows:

[0067] (1) Place the component on the assembly site workbench, loosen the locking device 3, rotate the gear 5 to drive the guide wheel 6, and adjust the inner diameter of the fixture to be slightly larger than the outer diameter of the part to be ground by adjusting the extension of the clamping block 8.

[0068] (2) Place the part to be polished vertically in the assembly (i.e., inside the clamping block 8), with the bottom surface of the part in complete contact with the horizontal base 1, adjust the gear 55 to drive the guide wheel 6, and clamp the part with the clamping block 8;

[0069] (3) Locking device 3;

[0070] (4) Adjust the height indicator 12 to the required position and tighten the locking device 14;

[0071] (5) Grind to the required height (flush with positioning plate 13), and remove the components after finishing to complete the work.

[0072] Compared with the prior art, the end face grinding clamping and fastening assembly of the cylindrical part of this utility model has the following innovations and beneficial technical effects:

[0073] (1) It can clamp cylindrical parts of different diameters (e.g., thin-walled bushings).

[0074] This component can adjust the extension and retraction of the clamping block through gears and guide wheels to clamp cylindrical parts of different diameters.

[0075] (2) Ensure the parallelism of the polished surfaces

[0076] The position of the cylindrical part is fixed by clamping the clamping blocks and the horizontal base to ensure the parallelism between the bottom surface and the grinding surface after the end face of the part is ground, thus ensuring the grinding quality.

[0077] (3) The grinding height is controllable

[0078] This component adjusts the grinding height (post-grinding height) by moving a height indicator on a height scale, ensuring that the grinding height is reached in one go, thus avoiding the need for repeated measurements of the grinding height of parts in traditional processes.

[0079] The specific embodiments of this utility model have been described above. However, those skilled in the art will understand that the above specific embodiments do not constitute a limitation on this utility model. Those skilled in the art can make various modifications based on the above disclosure without exceeding the scope of this utility model.

Claims

1. A clamping and fastening assembly for grinding the end face of a cylindrical part, characterized in that, The end face grinding clamping and fastening assembly for cylindrical parts includes a horizontal base, a diameter adjustment device, and a locking device, wherein the diameter adjustment device is mounted on the horizontal base; The diameter adjustment device includes a gear, a guide wheel, a guide member, and a clamping block. The gear is configured to rotate according to the outer diameter of the part to be polished. The guide wheel meshes with the gear and is disposed on the guide member, so that the rotation of the gear drives the guide wheel to rotate. The clamping block is installed between the guide wheel and the guide member, so that the rotation of the guide wheel drives the clamping block to extend or retract radially. When the extension amount of the clamping block is adjusted to correspond to the outer diameter of the part to be polished, the clamping block clamps the part to be polished. The locking device is used to lock the guide wheel onto the guide member after the clamping block clamps the part to be ground.

2. The cylindrical part end face grinding clamping fastening assembly as described in claim 1, characterized in that, The cylindrical part end face grinding clamping fastening assembly also includes a height adjustment indicator, used to adjust and indicate the height of the part to be ground after grinding.

3. The cylindrical part end face grinding clamping fastening assembly as described in claim 1, characterized in that, The diameter adjustment device further includes an outer cover for covering at least a portion of the gear, the guide wheel, the guide member, and the clamping block.

4. The cylindrical part end face grinding clamping fastening assembly as described in claim 3, characterized in that, The diameter adjustment device also includes fasteners for securing the outer cover and the guide to the horizontal base.

5. The cylindrical part end face grinding clamping fastening assembly as described in claim 1, characterized in that, The guide member is provided with a first guide groove extending radially, and the guide wheel is provided with a second guide groove extending obliquely relative to the radial direction. The clamping block is provided with a guide protrusion at its bottom and a guide protrusion at its top. The guide protrusion is provided in the first guide groove and the guide protrusion is provided in the second guide groove, so that the rotation of the guide wheel drives the clamping block to extend or retract radially.

6. The cylindrical part end face grinding clamping fastening assembly as described in claim 5, characterized in that, The second guide groove has an inclination angle of 30 to 60 degrees relative to the radial direction.

7. The cylindrical part end face grinding clamping fastening assembly as described in claim 1, characterized in that, The number of clamping blocks is three, and the three clamping blocks are arranged circumferentially along the part to be polished.

8. The cylindrical part end face grinding clamping fastening assembly as described in claim 7, characterized in that, The three clamping blocks are evenly spaced along the circumference of the part to be polished.

9. The cylindrical part end face grinding clamping fastening assembly as described in claim 1, characterized in that, The locking device is a locking screw, which passes through a hole in the guide wheel and abuts against the upper surface of the guide member, thereby locking the guide wheel onto the guide member.

10. The cylindrical part end face grinding clamping and fastening assembly as described in claim 2, characterized in that, The height adjustment indicator includes a height scale, a height indicator, a positioning plate, and a locking device. The height indicator is movably mounted on the height scale and is used to indicate the positioning height of the positioning plate. The positioning plate is fixed to the height indicator and can be positioned to match the post-grinding height of the part to be ground. The locking device is configured to lock the positioning plate after it is positioned to the post-grinding height of the part to be ground, thereby locking the positioning plate at the post-grinding height of the part to be ground.

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