Curved surface polishing device with quick release structure
By designing a curved surface grinding device with a quick disassembly structure, the clamping rod cooperates with electric or pneumatic tools, the problem of low internal curved surface grinding efficiency is solved, and efficient and convenient internal curved surface grinding is achieved.
Patent Information
- Application Number
- CN202422322928.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-23
AI Technical Summary
In the prior art, the grinding efficiency of the inner curved surface is low and cannot be fully polished, and manual operation cannot control the degree of grinding.
Design a curved surface grinding device with a quick-removal structure. The clamping rod can be matched with electric or pneumatic tools. The clamping rod extends the grinding range. Combined with the quick-removal design, sandpaper can be quickly replaced.
Improve the efficiency and effect of the inner curved surface, and realize the rapid replacement of sandpaper, which facilitates continuous grinding.
Smart Images
Figure CN223211153U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grinding tools, in particular to a curved surface grinding device with a quick-disassembly structure. Background Art
[0002] In existing production processes, the internal surfaces of parts such as air intakes need to be polished. These surfaces are often curved, but there is currently no effective solution for this problem, requiring manual polishing. This manual process has the following drawbacks: it is impossible to fully polish the internal surface, the degree of polishing cannot be controlled, and manual polishing is inefficient. Utility Model Content
[0003] In response to the technical problems of defects in existing grinding methods, the utility model provides a curved surface grinding device with a quick-release structure. Its clamping rod can be used in conjunction with existing electric and pneumatic tools to improve grinding efficiency. The clamping rod can extend the grinding range, penetrate deep into the inner curved surface, and fully grind the inner curved surface, thereby improving the grinding effect of the inner curved surface. The overall assembly structure of the device realizes a quick-release design, and the grinding sandpaper can be quickly replaced to facilitate continuous grinding.
[0004] The technical solution provided by the utility model is as follows: a curved surface grinding device with a quick-release structure, comprising a clamping rod, a grinding head, a locking piece and sandpaper; one end of the clamping rod is provided with a threaded section; the grinding head comprises a base and a plurality of fixing blocks fixed to the base; a first threaded hole is provided at the center of the base, the threaded section is threadedly connected to the first threaded hole, and a plurality of through holes are evenly arranged around the first threaded hole; the fixing blocks are evenly arranged around the base along the circumference so that an inner cavity with an open side is formed in the middle of the grinding head, adjacent fixing blocks form notches toward one side of the inner cavity, a first gap exists between adjacent fixing blocks, and an outer wall of one side of the fixing block constitutes a first locking surface. The first locking surface constitutes the first gap and the side wall of the slot, and the first gap is communicated with the inner cavity; the locking member is arranged in the inner cavity, and a plurality of second threaded holes are provided on the locking member, and the second threaded holes are communicated with the through hole; the locking member is provided with raised portions evenly arranged around the circumference, and the raised portions are embedded in the slot, and one side outer wall of the raised portion constitutes a second locking surface, and the second locking surface is arranged opposite to the first locking surface, and a second gap is formed between the second locking surface and the first locking surface; the sandpaper is inserted into the first gap and the second gap, the width of the first gap is greater than or equal to the thickness of the sandpaper, and the width of the second gap is less than the thickness of the sandpaper.
[0005] Optionally, the outer wall on the other side of the fixing block constitutes a first non-locking surface, the outer wall on the other side of the protrusion constitutes a second non-locking surface, and a third gap is formed between the first non-locking surface and the corresponding second non-locking surface.
[0006] Optionally, the extending direction of the sandpaper beyond the grinding head portion is opposite to the direction of the thread on the thread segment.
[0007] Optionally, the length of the sandpaper extending beyond the sanding head is greater than the distance between adjacent first gaps.
[0008] Optionally, one end of the locking member abuts against the base, and the other end of the locking member is flush with the opening end surface of the inner cavity.
[0009] Optionally, the width of the first gap is greater than or equal to 0.2 mm.
[0010] Optionally, the width of the second gap is less than or equal to 0.2 mm.
[0011] Optionally, the diameter of the clamping rod is 10 mm.
[0012] Optionally, the clamping rod, the grinding head and the locking piece are all made of metal or plastic.
[0013] Beneficial effects
[0014] The technical solution provided by the present invention has the following beneficial effects compared with the existing technology: in order to solve the technical problems of defects in the existing grinding methods, the clamping rod in the present invention can be used in conjunction with existing electric and pneumatic tools to improve the grinding efficiency, and the clamping rod can extend the grinding range, penetrate deep into the inner curved surface, and fully grind the inner curved surface, thereby improving the grinding effect of the inner curved surface; and the overall assembly structure of the device realizes a quick-disassembly design, and the grinding sandpaper can be quickly replaced to facilitate continuous grinding. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic structural diagram of a curved surface grinding device with a quick-release structure proposed in an embodiment of the present utility model.
[0016] Figure 2 This is a schematic structural diagram of the clamping rod proposed in an embodiment of the present utility model.
[0017] Figure 3 This is one of the structural schematic diagrams of the grinding head proposed in the embodiment of the utility model.
[0018] Figure 4 This is the second structural diagram of the grinding head proposed in the embodiment of the present utility model.
[0019] Figure 5This is one of the structural schematic diagrams of the locking member proposed in an embodiment of the present utility model.
[0020] Figure 6 This is the second structural diagram of the locking member proposed in the embodiment of the present utility model.
[0021] Figure 7 This is one of the assembly diagrams of the curved surface grinding device with a quick-release structure proposed in an embodiment of the present utility model.
[0022] Figure 8 This is the second assembly diagram of the curved surface grinding device with a quick-release structure proposed in an embodiment of the present utility model. DETAILED DESCRIPTION
[0023] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.
[0024] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific examples described herein are intended solely to illustrate the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the relevant portions of the utility model are shown in the accompanying drawings. Terms such as "first," "second," and so on, used in the present utility model, are provided for the convenience of describing the technical solution of the present utility model and do not have a specific limiting effect. They are general references and do not constitute a limitation on the technical solution of the present utility model. It should be noted that, unless conflicting, the embodiments and features within the embodiments of the present application may be combined with one another. In the description of the present utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or locations, are based on the positions or locations shown in the accompanying drawings and are intended solely to facilitate the description of the present utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Multiple technical solutions in the same embodiment, as well as multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions that do not contain contradictions or conflicts, and all of these are within the scope of protection claimed by this utility model.
[0025] Example 1
[0026] Combined with attachment Figure 1-8 This embodiment provides a curved surface grinding device with a quick-release structure, including a clamping rod 10, a grinding head 11, a locking member 12 and sandpaper 13; a threaded section 101 is provided at one end of the clamping rod 10.
[0027] The grinding head 11 includes a base 110 and a plurality of fixing blocks 111 fixed to the base 110 ; a first threaded hole 112 is provided at the center of the base 110 , the threaded section 101 is threadedly connected to the first threaded hole 112 , and a plurality of through holes 113 are evenly arranged around the first threaded hole 112 .
[0028] The fixing blocks 111 are evenly arranged around the base 110 along the circumferential direction, so that an inner cavity 114 with an open side is formed in the middle of the grinding head 11. Adjacent fixing blocks 111 form a notch 115 on the side facing the inner cavity 114. A first gap 201 exists between adjacent fixing blocks 111. An outer wall of one side of the fixing block 111 constitutes a first locking surface 117. The first locking surface 117 constitutes the first gap 201 and the side wall of the notch 115. The first gap 201 is connected to the inner cavity 114.
[0029] The locking member 12 is disposed in the inner cavity 114 and is provided with a plurality of second threaded holes 120 on the locking member 12, which are connected to the through hole 113; a protrusion 121 is uniformly arranged around the circumference of the locking member 12, and the protrusion 121 is embedded in the notch 115. An outer wall of one side of the protrusion 121 constitutes a second locking surface 122, and the second locking surface 122 is arranged opposite to the first locking surface 117, and a second gap 202 is formed between the second locking surface 122 and the first locking surface 117.
[0030] The sandpaper 13 is inserted into the first gap 201 and the second gap 202 . The width of the first gap 201 is greater than or equal to the thickness of the sandpaper 13 , and the width of the second gap 202 is less than the thickness of the sandpaper 13 .
[0031] The clamping rod 10 of this embodiment is compatible with common electric and pneumatic tools on the market. It is clamped by a structure such as a three-jaw chuck built into these tools. Once clamped, the clamping rod 10 can be rotated by the electric or pneumatic tool. In a preferred embodiment, the diameter of the clamping rod 10 is preferably 10 mm, which is more adaptable and can be clamped by most electric and pneumatic tools.
[0032] It can be understood that the main function of the clamping rod 10 is to extend the grinding distance, extend deep into the inner curved surface, and expand the range of the grinding operation. The specific rod length of the clamping rod 10 can be processed into different lengths according to actual needs, that is, the actual grinding distance requirements.
[0033] In this embodiment, the grinding head 11 is assembled by the first threaded hole 112 mating with the threaded section 101 on the clamping rod 10. The grinding head 11 is assembled with the locking member 12 by a threaded connection member, such as a bolt, passing through the through hole 113 and mating with the second threaded hole 120 on the locking member 12.
[0034] The curved surface grinding device with a quick-release structure of this embodiment can achieve quick disassembly of the entire structure, thereby improving the convenience of clamping the sandpaper 13. The specific operation is as follows: when the sandpaper 13 needs to be clamped, the locking member 12 is placed into the inner cavity 114 of the grinding head 11, the sandpaper 13 is inserted into the first gap 201, and the sandpaper 13 is ensured to be inserted into the second gap 202. The locking member 12 is then adjusted so that the second threaded hole 120 thereon is aligned with the through hole 113, and the sandpaper 13 is assembled with a threaded connector. Since the second gap 202 is smaller than the thickness of the sandpaper 13, the sandpaper 13 can be clamped after the locking member 12 is fixed. The clamping rod 10 is then fixed to the grinding head 11 by connecting the threaded section 101 and the first threaded hole 112. Finally, the clamping rod 10 is assembled and clamped with an electric or pneumatic tool to perform the grinding operation.
[0035] In this embodiment, the cooperation between the protrusion 121 and the notch 115 can ensure the clamping of the sandpaper 13 on the one hand, and provide positioning during assembly on the other hand, thereby ensuring that the grinding head 11 and the locking member 12 are assembled accurately and quickly.
[0036] In a preferred embodiment, the outer wall of the other side of the fixing block 111 forms a first non-locking surface 118, and the outer wall of the other side of the raised portion 121 forms a second non-locking surface 124. A third gap 203 is formed between the first non-locking surface 118 and the corresponding second non-locking surface 124. The presence of the third gap 203 can reduce the machining precision requirements of the grinding head 11 and the locking member 12, reduce machining costs, and improve assembly convenience to a certain extent. Furthermore, since the entire device is frequently subjected to stress during the grinding process, the presence of the third gap 203 can prevent the force applied to the grinding head 11 from being directly transmitted to the locking member 12, thereby generating impact, thereby providing a certain degree of buffering effect.
[0037] Furthermore, in one embodiment, the extension direction of the sandpaper 13 beyond the grinding head 11 is opposite to the thread rotation direction of the threaded segment 101, so as to keep the locking rotation direction of the threaded connection consistent with the grinding rotation direction of the sandpaper 13, thereby preventing the grinding head 11 from loosening from the clamping rod 10 during the rapid rotation of the grinding head 11, and instead preventing the grinding head 11 from becoming tighter as it rotates.
[0038] In an improved embodiment, the length of the sandpaper 13 extending beyond the grinding head 11 is greater than the spacing between adjacent first gaps 201, thereby ensuring that adjacent sandpapers 13 can overlap with each other to maximize the grinding effect of the sandpaper 13 on the inner curved surface.
[0039] In a preferred embodiment, one end of the locking member 12 abuts the base 110, while the other end of the locking member 12 is flush with the open end surface of the inner cavity 114. This ensures that the locking member 12 is of an appropriate length. If the locking member 12 is too long, it will not be easy for the grinding head 11 to penetrate deep into the inner curved surface, and the locking member 12 may abut the inner curved surface before the grinding head 11, resulting in a poor grinding effect. If the locking member 12 is too short, it may result in poor locking of the sandpaper 13.
[0040] Generally, the thickness of the sandpaper 13 is about 0.2 mm. Therefore, the width of the first gap 201 can be set to be greater than or equal to 0.2 mm, preferably about 0.5 mm, to facilitate the insertion of the sandpaper 13. Furthermore, the width of the second gap 202 should be less than or equal to 0.2 mm, preferably 0.1 mm, to ensure that the sandpaper 13 can be firmly clamped.
[0041] In an optional embodiment, the clamping rod 10 , the grinding head 11 and the locking member 12 are all made of metal or plastic.
[0042] To sum up, in order to solve the technical problems of defects in existing grinding methods, a curved surface grinding device with a quick-release structure in this embodiment has a clamping rod 10 that can be used in conjunction with existing electric and pneumatic tools to improve grinding efficiency. The clamping rod 10 can extend the grinding range, penetrate deep into the inner curved surface, and fully grind the inner curved surface, thereby improving the grinding effect of the inner curved surface. The overall assembly structure of the device realizes a quick-release design, and the grinding sandpaper 13 can be quickly replaced to facilitate continuous grinding.
[0043] The above schematically describes the present invention and its embodiments, which are not restrictive. The accompanying drawings only illustrate one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by the above and, without departing from the inventive purpose of the present invention, designs structures and embodiments similar to the technical solution without creatively designing them, they shall fall within the scope of protection of the present invention.
Claims
1. A curved surface grinding device with a quick-release structure, characterized in that: It comprises a clamping rod (10), a grinding head (11), a locking piece (12) and sandpaper (13); one end of the clamping rod (10) is provided with a threaded section (101); The grinding head (11) comprises a base (110) and a plurality of fixing blocks (111) fixed to the base (110); a first threaded hole (112) is provided at the center of the base (110); the threaded section (101) is threadedly connected to the first threaded hole (112); and a plurality of through holes (113) are evenly arranged around the first threaded hole (112); The fixing blocks (111) are evenly arranged on the base (110) along the circumferential direction so that an inner cavity (114) with an opening on one side is formed in the middle of the grinding head (11), and adjacent fixing blocks (111) form notches (115) on one side facing the inner cavity (114), and a first gap (201) exists between adjacent fixing blocks (111). An outer wall of one side of the fixing blocks (111) forms a first locking surface (117), and the first locking surface (117) forms the first gap (201) and the side wall of the notch (115), and the first gap (201) is communicated with the inner cavity (114); The locking member (12) is arranged in the inner cavity (114), and a plurality of second threaded holes (120) are provided on the locking member (12), and the second threaded holes (120) are communicated with the through hole (113); a protrusion (121) is uniformly arranged around the locking member (12) along the circumferential direction, and the protrusion (121) is embedded in the notch (115), and an outer wall of one side of the protrusion (121) constitutes a second locking surface (122), and the second locking surface (122) is arranged opposite to the first locking surface (117), and a second gap (202) is formed between the second locking surface (122) and the first locking surface (117); The sandpaper (13) is inserted into the first gap (201) and the second gap (202); the width of the first gap (201) is greater than or equal to the thickness of the sandpaper (13); and the width of the second gap (202) is less than the thickness of the sandpaper (13).
2. The curved surface grinding device with a quick-release structure according to claim 1, characterized in that: The outer wall on the other side of the fixing block (111) forms a first non-locking surface (118), and the outer wall on the other side of the protruding portion (121) forms a second non-locking surface (124). A third gap (203) is formed between the first non-locking surface (118) and the corresponding second non-locking surface (124).
3. The curved surface grinding device with a quick-release structure according to claim 1, characterized in that: The extending direction of the sandpaper (13) beyond the grinding head (11) is opposite to the direction of the thread on the threaded section (101).
4. A curved surface grinding device with a quick-release structure according to claim 1 or 3, characterized in that: The length of the portion of the sandpaper (13) extending beyond the grinding head (11) is greater than the distance between adjacent first gaps (201).
5. The curved surface grinding device with a quick-release structure according to claim 1, characterized in that: One end of the locking member (12) abuts against the base (110), and the other end of the locking member (12) is flush with the opening end surface of the inner cavity (114).
6. The curved surface grinding device with a quick-release structure according to claim 1, characterized in that: The width of the first gap (201) is greater than or equal to 0.2 mm.
7. The curved surface grinding device with a quick-release structure according to claim 1, characterized in that: The width of the second gap (202) is less than or equal to 0.2 mm.
8. The curved surface grinding device with a quick-release structure according to claim 1, characterized in that: The diameter of the clamping rod (10) is 10 mm.
9. The curved surface grinding device with a quick-release structure according to claim 1, characterized in that: The clamping rod (10), the grinding head (11) and the locking piece (12) are all made of metal or plastic.