clamping mechanism

Abstract

The application relates to the tool clamping technology field, and particularly discloses a clamping mechanism, which comprises a base, a rotating seat rotationally connected to one end of the base and a clamping assembly arranged at the other end of the rotating seat. The clamping assembly comprises a shell arranged at the other end of the rotating seat, a sleeve rotationally arranged in the shell, a collet movably arranged in the sleeve and having a chuck end and a connecting end arranged oppositely, and a screwing piece rotationally arranged in the sleeve and threadedly connected with the connecting end. By rotating the screwing piece, the collet moves in the sleeve close to the screwing piece, the sleeve extrudes the chuck end so that the chuck end is radially contracted, and the chuck end can clamp the tool to be clamped. The clamping mechanism can stably, efficiently and safely clamp the tool.

Description

Technical Field

[0001] This application relates to the field of tool clamping technology, specifically to a clamping mechanism. Background Technology

[0002] In the field of machining, end mills are indispensable key tools in CNC machining centers. Among them, end mills are widely used for roughing and finishing various parts, including planes, steps, and contours. In actual production, to reduce costs, end mills are often regrinded for reuse. However, after regrinding, the tip of the end mill is prone to chipping during subsequent roughing, significantly reducing tool life. This not only increases tool change frequency and production costs but also affects machining efficiency and stability. While using a round nose end mill for roughing can improve stress distribution, the cost of purchasing new tools is high, making it uneconomical.

[0003] Currently, to enhance the toughness of regrinded end mills, operators typically manually chamfer the end mills to improve tip toughness and delay chipping. However, this operation relies on manual experience, making it difficult to guarantee the consistency and precision of the chamfer angle. The actual improvement is limited, and the end mills still cannot reach their optimal service life. More seriously, manual operation poses safety hazards such as unstable tool clamping and slippage, threatening the safety of operators and making standardized batch processing difficult. Utility Model Content

[0004] In view of the above, it is necessary to propose a clamping mechanism to stably, efficiently and safely clamp the tool to be sharpened, so that the sharpening mechanism can sharpen the tool thoroughly.

[0005] This application provides a clamping mechanism, including a base, a rotating seat, and a clamping assembly. One end of the rotating seat is rotatably connected to the base. The clamping assembly is disposed at the other end of the rotating seat and includes a housing, a sleeve, a collet, and a screwing component. The housing is disposed at the other end of the rotating seat, the sleeve is rotatably disposed within the housing, and the collet is movably disposed within the sleeve. The collet has a chuck end and a connecting end disposed opposite to each other. The screwing component is rotatably disposed within the sleeve and threadedly connected to the connecting end. By rotating the screwing component, the collet moves within the sleeve closer to the screwing component, causing the sleeve to press against the chuck end, causing the chuck end to radially contract, thereby clamping the tool to be clamped.

[0006] In some embodiments, the clamping assembly further includes an indexing plate, which is sleeved outside the sleeve. By rotating the indexing plate, the sleeve, the collet, the screwing member, and the clamped tool rotate synchronously by a predetermined angle.

[0007] In some embodiments, the indexing plate has a plurality of positioning grooves evenly distributed on its outer periphery; the clamping assembly further includes a locking sleeve and a locking pin, the locking sleeve is disposed on the housing and is disposed opposite to the outer periphery of the indexing plate, the locking pin is movably inserted through the locking sleeve and can be inserted into any of the positioning grooves to achieve positioning of the indexing plate.

[0008] In some embodiments, the clamping assembly further includes an indicator disposed on the housing and opposite to the outer periphery of the indexing plate, the indicator having an indicator mark pointing to the indexing plate to indicate the rotation angle of the indexing plate.

[0009] In some embodiments, the clamping mechanism further includes a tool setting member, which is detachably disposed at the other end of the rotary seat, and the central axis of the tool setting member coincides with the rotation axis of the rotary seat. A tool setting reference surface is provided on the side of the tool setting member facing the clamping assembly.

[0010] In some embodiments, the clamping mechanism further includes a displacement component disposed at the other end of the rotary seat, the clamping component disposed on the displacement component, and the displacement component being used to drive the clamping component to move along a first direction and a second direction perpendicular to the first direction.

[0011] In some embodiments, the displacement assembly includes a first slider, a first adjusting member, a second slider, and a second adjusting member. The first slider is slidably disposed at the other end of the rotary seat along the first direction. The first adjusting member passes through the first slider and is threadedly connected to the rotary seat, and is rotatably connected to the first slider. The second slider is slidably disposed on the first slider along the second direction. The second adjusting member passes through the second slider and is threadedly connected to the first slider, and is rotatably connected to the second slider. The clamping assembly is disposed on the second slider.

[0012] In some embodiments, the rotating seat has a first guide rail protruding on the side facing the first slider, the first slider has a first groove adapted to the first guide rail on the side facing the rotating seat, the first slider has a second guide rail protruding on the side facing the second slider, and the second slider has a second groove adapted to the second guide rail on the side facing the first slider.

[0013] In some embodiments, a rotary groove is provided on one side of the base facing the rotating seat. The rotating seat includes a base plate, a rotating shaft, and a bearing. The base plate is disposed on the base, and the rotating shaft is connected to the base plate and rotatably disposed in the rotary groove through the bearing.

[0014] In some embodiments, a limiting groove is formed on the outer periphery of the rotating shaft, and a pin hole is formed that penetrates the limiting groove radially along the rotating shaft. Limiting insertion holes communicating with the rotating groove are formed on the adjacent two or three sides of the base. Limiting pins are respectively provided in two or three of the limiting insertion holes. The limiting pins can be inserted into the limiting groove and the pin hole at one end that communicates with the corresponding limiting insertion hole to restrict the rotation of the rotating shaft.

[0015] In actual use, the above-mentioned clamping mechanism inserts the tool to be clamped into the collet end of the collet, and rotates the screwing component. Since the screwing component is rotated inside the sleeve, it will not move. The screwing component, through the threaded connection with the connecting end, drives the collet to move closer to the screwing component inside the sleeve, so that the sleeve squeezes the collet end and causes the collet end to contract radially, thereby clamping the tool to be clamped. After the clamping assembly clamps the tool, the grinding mechanism grinds one side of one cutting edge of the tool. After grinding one side of one cutting edge of the tool, the rotating seat rotates relative to the base. The rotating seat drives the clamping assembly and the clamped tool to rotate relative to the base, so that the grinding mechanism can grind the other side of one cutting edge of the tool. After grinding the other side of one cutting edge of the tool, the rotating seat drives the clamping assembly and the clamped tool to rotate in the opposite direction to reset. The rotating sleeve, due to the sleeve pressing the chuck end, rotates the sleeve, which drives the collet, the screwing part and the clamped tool to rotate, so that the grinding mechanism can grind the other cutting edge of the tool. This cycle is repeated so that the grinding mechanism can grind the tool thoroughly.

[0016] The clamping mechanism of this embodiment, through the coordinated operation of the base, rotating seat, and clamping components, can stably, efficiently, and safely clamp the tool to be sharpened, allowing the sharpening mechanism to thoroughly sharpen the tool. The threaded engagement between the screw and the collet connection allows control of the collet's movement within the sleeve. The squeezing action of the sleeve's inner wall on the collet end ensures a firm and uniform clamping of the tool, guaranteeing consistency in each clamping and effectively preventing tool loosening, slippage, or ejection during sharpening. This effectively replaces manual sharpening, enabling the clamping mechanism to stably, efficiently, and safely clamp the tool, significantly improving operational safety and processing stability. Furthermore, rotating the rotating seat and sleeve allows the sharpening mechanism to thoroughly sharpen the tool. The collet of the clamping mechanism can accommodate tools of different diameters, offering strong versatility and meeting the needs of sharpening various tools on-site, thus reducing the investment cost of specialized fixtures. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the clamping mechanism, cutting tool, and grinding mechanism provided in the embodiments of this application.

[0018] Figure 2 yes Figure 1 An exploded view of the clamping mechanism shown.

[0019] Figure 3 yes Figure 2 An exploded view of the clamping components of the clamping mechanism shown.

[0020] Key component symbols: Clamping mechanism 100, base 10, rotary groove 11, limiting insertion hole 12, limiting pin 13, rotating seat 20, first guide rail 21, first threaded hole 211, base plate 22, rotating shaft 23, limiting groove 231, pin hole 232, bearing 24, clamping assembly 30, housing 31, sleeve 32, collet 33, chuck end 331, connecting end 332, screwing component 34, indexing plate 35, positioning groove 351, locking sleeve 36, locking pin 37, indicator 38, indicator mark 381, tool setting component 40, tool setting reference surface 41, displacement assembly 50, first slider 51, first slide groove 511, second guide rail 512, second threaded hole 513, first adjusting component 52, second slider 53, second slide groove 531, second adjusting component 54, cutting tool 200, grinding mechanism 300. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0025] Please see Figure 1 This application provides a clamping mechanism 100. The clamping mechanism 100 is used to clamp the tool 200 to be sharpened, so that the sharpening mechanism 300 can sharpen the tool 200. In this embodiment, the tool 200 is an end mill, which may include multiple cutting edges. By clamping the tool 200 to be sharpened through the clamping mechanism 100 of this application embodiment, the sharpening mechanism 300 can thoroughly sharpen the tool 200.

[0026] Please refer to the above. Figure 1 , Figure 2 and Figure 3 In this embodiment, the clamping mechanism 100 includes a base 10, a rotating seat 20 supported on the base 10 and rotatably connected to the base 10 at one end, a displacement component 50 disposed at the other end of the rotating seat 20 and facing away from the base 10, a clamping component 30 disposed on the displacement component 50, and a tool setting component 40 detachably disposed at the other end of the rotating seat 20 and disposed opposite to the displacement component 50 and the clamping component 30. The base 10 is used to support the rotating seat 20, the displacement component 50, the clamping component 30, and the tool setting component 40, so that the clamping mechanism 100 can be modularly configured. The rotating seat 20 drives the displacement component 50 and the clamping component 30 to rotate relative to the base 10. The displacement component 50 drives the clamping component 30 to move along a first direction and a second direction perpendicular to the first direction to adjust the position of the clamping component 30. The clamping component 30 clamps the tool 200 to be ground, and the tool setting component 40 sets the tool 200.

[0027] For ease of understanding and explanation, the embodiments of this application are defined as follows: Figure 1 The XYZ coordinate system shown is as follows: the X-axis is the first direction, which can be referenced to the width direction of the base 10; the Y-axis is the second direction, which can be referenced to the length direction of the base 10. It should be understood that this is not a limitation on the embodiments of this application.

[0028] In actual use, the clamping mechanism 100 clamps the tool 200 to be ground using the clamping assembly 30, and then adjusts the position of the tool 200 through the coordinated action of the displacement assembly 50 and the tool setting member 40. After adjusting the tool 200, the tool setting member 40 is removed from the rotary seat 20 to avoid interference during the grinding of the tool 200. The grinding mechanism 300 grinds the tool 200. During the grinding process, the rotary seat 20 is rotated, causing the rotary seat 20 to drive the displacement assembly 50, the clamping assembly 30, and the tool 200 to rotate relative to the base 10, so that the grinding mechanism 300 can fully grind the tool 200.

[0029] In this embodiment, the projections of the base 10 and the rotating seat 20 in the Z-axis direction overlap. A cylindrical rotary groove 11 is formed on the side of the base 10 facing the rotating seat 20. The rotating seat 20 includes a base plate 22 disposed on the base 10, a cylindrical rotating shaft 23 connected to the side of the base plate 22 facing the base 10 and located within the rotary groove 11, and a bearing 24 disposed within the rotary groove 11 and fitted around the outer periphery of the rotating shaft 23. The projections of the base plate 22 and the base 10 in the Z-axis direction overlap. One end of the base plate 22 where the rotating shaft 23 is disposed and the other end of the base 10 where the rotary groove 11 is disposed correspond to each other and are both semi-circular. The rotating shaft 23 is rotatably disposed within the rotary groove 11 via the bearing 24. Thus, by providing the aforementioned rotary groove 11, the base 10 partially accommodates the rotating seat 20, which helps to reduce the volume of the clamping assembly 30; by providing the aforementioned rotating shaft 23 and bearing 24, the rotating seat 20 achieves a rotatable connection with the base 10.

[0030] To limit the rotation of the rotating shaft 23 and prevent the grinding mechanism 300 from shaking when grinding the tool 200, in this embodiment, a limiting groove 231 and a pin hole 232 penetrating the limiting groove 231 are provided on the radial outer periphery of the cylindrical rotating shaft 23. Limiting insertion holes 12 communicating with the rotating groove 11 are respectively provided on the three adjacent sides of the rotating groove 11 along the radial direction of the rotating groove 11. When the rotating shaft 23 rotates, the positions of the three limiting insertion holes 12 can correspond to the pin hole 232 at different times. The limiting pin 13 passes through the corresponding limiting insertion hole 12 and is inserted into the limiting groove 231 and the pin hole 232 to limit the rotation of the rotating shaft 23 radially. Thus, by setting the aforementioned limiting groove 231, pin hole 232, limiting insertion hole 12, and limiting pin 13, when the rotating seat 20 is rotated, if the pin hole 232 on the rotating seat 20 is connected to one of the limiting insertion holes 12, the limiting pin 13 can be moved towards the rotating shaft 23, so that the limiting pin 13 is inserted into one end of the pin hole 232, thereby restricting the rotation of the rotating shaft 23 and preventing the grinding mechanism 300 from shaking when grinding the tool 200. Understandably, pulling the limiting pin 13 out of one end of the pin hole 232 allows the rotating seat 20 to rotate again. The end of the limiting pin 13 inserted into the limiting groove 231 can be an arc surface to allow the limiting pin 13 to fit the bottom of the limiting groove 231.

[0031] Understandably, in other embodiments, limiting holes 12 communicating with the rotary groove 11 may be opened on the adjacent sides of the base 10, but this application embodiment does not specifically limit this.

[0032] In this embodiment, the displacement assembly 50 includes a first slider 51 slidably disposed at the other end of the rotary seat 20 along a first direction, a first adjusting member 52 passing through the first slider 51 and threadedly connected to the rotary seat 20, a second slider 53 slidably disposed on the first slider 51 along a second direction, and a second adjusting member 54 passing through the second slider 53 and threadedly connected to the first slider 51. The first adjusting member 52 is threadedly connected to a first threaded hole 211 on the rotary seat 20 and rotatably connected to the first slider 51; the first adjusting member 52 is a screw. The second adjusting member 54 is threadedly connected to a second threaded hole 513 on the first slider 51 and rotatably connected to the second slider 53; the second adjusting member 54 can also be a screw. A clamping assembly 30 is disposed on the second slider 53.

[0033] Thus, by setting the first slider 51 and the first adjusting member 52 as described above, and through the rotational connection between the first adjusting member 52 and the first slider 51, the first adjusting member 52 will not move relative to the first slider 51. Since the first adjusting member 52 is threadedly connected to the first threaded hole 211 of the rotating seat 20, when the first adjusting member 52 is rotated, the first adjusting member 52 moves in or out relative to the first threaded hole 211. The first adjusting member 52 drives the first slider 51 to move relative to the rotating seat 20 in the first direction, thereby causing the second slider 53, the second adjusting member 54, the clamping assembly 30, and the clamped tool 200 to move in the first direction; by setting The second slider 53 and the second adjusting member 54 are placed as described above. The second adjusting member 54 is rotatably connected to the second slider 53, so that the second adjusting member 54 will not move relative to the second slider 53. Since the second adjusting member 54 is threadedly connected to the second threaded hole 513 of the first slider 51, rotating the second adjusting member 54 causes the second adjusting member 51 to move in or out relative to the second threaded hole 513. The second adjusting member 54 drives the second slider 53 to move relative to the first slider 51 in the second direction, thereby causing the clamping assembly 30 and the clamped tool 200 to move in the second direction, so as to adjust the position of the tool 200 in the first and second directions.

[0034] To ensure the stability of the movement of the first slider 51 and the second slider 53, in this embodiment, a first guide rail 21 protrudes from the side of the rotating seat 20 facing the first slider 51, and a first groove 511 adapted to the first guide rail 21 is formed on the side of the first slider 51 facing the rotating seat 20. Both the first guide rail 21 and the first groove 511 extend along a first direction, and a first threaded hole 211 is formed on the first guide rail 21. A second guide rail 512 protrudes from the side of the first slider 51 facing the second slider 53, and a second groove 531 adapted to the second guide rail 512 is formed on the side of the second slider 53 facing the first slider 51. Both the second guide rail 512 and the second groove 531 extend along a second direction, and a second threaded hole 513 is formed on the second guide rail 512. Both the first guide rail 21 and the second guide rail 512 can be dovetail guide rails, and both the first groove 511 and the second groove 531 can be dovetail grooves. Thus, by setting the first guide rail 21 and the first slide groove 511, the first slider 51 can slide stably and accurately on the rotary seat 20 along the first direction; by setting the second guide rail 512 and the second slide groove 531, the second slider 53 can move stably and accurately on the first slider 51 along the second direction, thereby ensuring the movement stability of the first slider 51 and the second slider 53 and improving the adjustment accuracy of the tool 200.

[0035] Understandably, in other embodiments, the displacement component 50 may be omitted if the positional accuracy requirement of the tool 200 is not high.

[0036] In this embodiment, the central axis of the tool setting member 40 is coaxially arranged with the rotating shaft 23. The tool setting member 40 is inserted into the base plate 22 of the rotating seat 20, and a tool setting reference surface 41 is provided on the side of the tool setting member 40 facing the clamping assembly 30. Thus, by providing the tool setting reference surface 41 on the tool setting member 40, and by having the end of the tool 200 facing away from the clamping assembly 30 abut against the tool setting reference surface 41, the tool 200 is tool-set. In actual use, after the tool 200 is clamped in the clamping assembly 30, the position of the clamping assembly 30 and the clamped tool 200 is adjusted by the displacement assembly 50 so that the tool 200 abuts against the tool setting reference surface 41 on the tool setting member 40, thereby improving the tool setting accuracy.

[0037] Understandably, in other embodiments, if the positional accuracy requirement of the tool 200 is not high, the tool setting component 40 may be omitted.

[0038] In this embodiment, the clamping assembly 30 includes a housing 31 disposed on the second slider 53 of the displacement assembly 50, a sleeve 32 rotatably disposed within the housing 31, a collet 33 movably disposed within the sleeve 32 along a second direction, and a screwing member 34 rotatably disposed within the sleeve 32 and threadedly connected to the collet 33. The collet 33 has a chuck end 331 and a connecting end 332 disposed opposite to each other. The chuck end 331 has multiple elastic clamping pieces along the axial direction of the collet 33. The connecting end 332 has external threads, and the screwing member 34 has internal threads. The screwing member 34 is threadedly connected to the connecting end 332. The chuck end 331 is generally tapered, and the end of the sleeve 32 facing the tool setter 40 is cylindrical. By rotating the screwing member 34, the collet 33 moves close to the screwing member 34 inside the sleeve 32, causing the sleeve 32 to press the collet end 331, causing the multiple elastic clamping pieces of the collet end 331 to contract radially, so that the collet end 331 clamps the tool 200 to be clamped.

[0039] Thus, by setting the aforementioned housing 31, which houses the sleeve 32, collet 33, screwing component 34, and other structures, the clamping assembly 30 is modularized, reducing the assembly difficulty of the clamping assembly 30. By setting the aforementioned sleeve 32, collet 33, and screwing component 34, the movement of the collet 33 within the sleeve 32 can be precisely controlled through the threaded engagement between the screwing component 34 and the connecting end 332. The sleeve 32 squeezes the chuck end 331 of the collet 33, causing the chuck end 331 to radially contract, thereby enabling the chuck end 331 to firmly and evenly clamp the tool 200 to be ground, providing a stable and reliable clamping force. This effectively prevents the tool 200 from loosening, slipping, or being thrown out during the grinding process, significantly improving operational safety and processing stability.

[0040] Furthermore, the clamping method employing a mechanical thread drive and a conical surface engagement ensures the clamping accuracy and repeatability of the clamping assembly 30, avoiding the uncertainties of manual operation and ensuring consistency in each clamping. This provides a precise benchmark for the regrinding of the tool 200, such as chamfering, which helps ensure symmetrical cutting edge angles and uniform dimensions after regrinding, thereby improving the regrinding quality and the reusability of the tool 200.

[0041] The clamping assembly 30 integrates the rotation and clamping functions into one modular unit. It has a reasonable and compact structure and is easy to operate. In actual use, the operator can complete the clamping and loosening actions by rotating the screwing part 34. The clamping efficiency is high, the labor intensity is low, and it is convenient to quickly and frequently change the tool to be sharpened 200 on site.

[0042] The clamping assembly 30 can be adapted to clamp tools 200 of different diameters by replacing the collet 33. It has strong versatility and good adaptability, meeting the needs of the production site for regrinding various tools 200 and reducing the investment cost of special fixtures.

[0043] Understandably, in other embodiments, when the displacement component 50 is omitted, the housing 31 may be directly disposed at the other end of the rotary seat 20.

[0044] To improve the angular rotation accuracy of the tool 200, in this embodiment, the clamping assembly 30 further includes an indexing plate 35 fixedly sleeved on the outside of the sleeve 32. Angle values ​​are engraved on the indexing plate 35. By rotating the indexing plate 35, the sleeve 32, collet 33, screwing component 34, and the clamped tool 200 are driven to rotate synchronously by a predetermined angle. In this embodiment, the predetermined angle can be 90°, meaning the tool 200 rotates 90° each time. Thus, by setting the aforementioned indexing plate 35 and observing the angle of rotation of the indexing plate 35, the angle of rotation of the sleeve 32, collet 33, screwing component 34, and clamped tool 200 is ensured to follow the synchronous rotation of the indexing plate 35, thereby improving the angular rotation accuracy of the tool 200.

[0045] Understandably, in other embodiments, the predetermined angle may be other angles, and the specific angle is set according to the actual situation of the cutting tool 200. This application embodiment does not specifically limit this.

[0046] To ensure the rotational accuracy of the indexing plate 35, in this embodiment, the clamping assembly 30 further includes an indicator 38 disposed on the housing 31 and positioned opposite to the outer periphery of the indexing plate 35. The indicator 38 has an indicator mark 381 pointing towards the indexing plate 35 to indicate the rotation angle of the indexing plate 35, i.e., the angle value on the indexing plate 35. The indicator mark 381 can be a triangle, an arrow, or other marking. Thus, by providing the indicator 38 and the indicator mark 381, and by observing the correspondence between the indicator 38 and the angle value on the indexing plate 35, the rotational angle of the indexing plate 35 can be clearly observed, thereby ensuring the rotational accuracy of the indexing plate 35.

[0047] To prevent the tool 200 from wobbling during grinding, in this embodiment, the outer periphery of the indexing plate 35 is evenly provided with multiple positioning grooves 351. The clamping assembly 30 also includes a locking sleeve 36 disposed on the housing 31 and disposed opposite to the outer periphery of the indexing plate 35, and a locking pin 37 movably inserted through the locking sleeve 36. The locking pin 37 can be inserted into any positioning groove 351 on the indexing plate 35, thereby enabling the locking sleeve 36 to position the indexing plate 35. One end of the locking pin 37 can be a structure adapted to the positioning groove 351, such as a conical structure, and the other end of the locking pin 37 can be a thick rod-like structure that is easy to grip, such as a T-shaped structure. Thus, by rotating the indexing plate 35 to rotate the tool 200 by a preset angle, the locking pin 37 is inserted into the positioning groove 351 to fix the indexing plate 35, thereby restricting the rotation of the indexing plate 35, and in turn restricting the rotation of the sleeve 32, the collet 33, the screwing part 34 and the tool 200, so as to prevent the tool 200 from shaking during grinding.

[0048] Understandably, in other embodiments, when the indexing plate 35 is omitted, the locking pin 37 can also be directly inserted into the outer periphery of the sleeve 32 to fix the sleeve 32, thereby restricting the rotation of the sleeve 32.

[0049] In actual use, the clamping mechanism 100 provided in this embodiment inserts the tool 200 to be clamped into the collet end 331 of the collet 33. Rotating the screwing member 34, which, through its threaded connection with the connecting end 332, causes the collet 33 to move closer to the screwing member 34 within the sleeve 32. This causes the sleeve 32 to press against the collet end 331, causing the collet end 331 to radially contract, thus clamping the tool 200 to be clamped. The tool 200 is then set using the coordinated action of the displacement component 50 and the tool setting member 40. After setting, the tool setting member 40 is removed from the rotating seat 20 to facilitate grinding.

[0050] After the clamping assembly 30 clamps the tool 200 and performs tool setting, the grinding mechanism 300 grinds one side of one cutting edge of the tool 200. Once one side of the cutting edge is ground, the rotating seat 20 rotates relative to the base 10. The rotating seat 20 drives the displacement assembly 50, the clamping assembly 30, and the clamped tool 200 to rotate relative to the base 10, facilitating the grinding mechanism 300 to grind the other side of one cutting edge of the tool 200. Once the other side of one cutting edge is ground, the rotating seat 20 drives the displacement assembly 50, the clamping assembly 30, and the clamped tool 20 to rotate relative to the base 10. The moving assembly 50, clamping assembly 30, and clamped tool 200 are rotated in the opposite direction to reset; the indexing plate 35 is rotated, which drives the sleeve 32, collet 33, screwing component 34, and clamped tool 200 to rotate. The indexing plate 35 rotates to a predetermined angle through the indicator 38. After the indexing plate 35 rotates to a predetermined angle, the locking pin 37 is inserted into the corresponding positioning groove 351 to fix the tool 200, so that the grinding mechanism 300 grinds one side of the other cutting edge of the tool 200. This cycle is repeated so that the grinding mechanism 300 can grind the tool 200 completely.

[0051] The clamping mechanism 100 of this embodiment, through the coordinated cooperation of the base 10, rotating seat 20, displacement component 50, clamping component 30, and tool setting component 40, can stably, efficiently, and safely clamp the tool 200 to be ground. The clamping accuracy of the tool 200 is high, so that the grinding mechanism 300 can grind the tool 200 comprehensively. Through the threaded engagement between the screwing component 34 and the connecting end 332, the movement of the collet 33 within the sleeve 32 can be controlled. By utilizing the squeezing action of the inner wall of the sleeve 32 on the chuck end 331, the tool 200 is firmly and evenly clamped, ensuring the consistency of the tool 200 in each clamping, effectively preventing the tool 200 from loosening, slipping, or being thrown out during the grinding process, effectively replacing manual grinding. Thus, the clamping mechanism 100 can stably, efficiently, and safely clamp the tool 200 to be ground, significantly improving operational safety and processing stability. In addition, by rotating the rotating seat 20 and the sleeve 32, the grinding mechanism 300 can grind the tool 200 thoroughly; the clamping mechanism 100's collet 33 can be adapted to hold tools 200 of different diameters, which is highly versatile and meets the needs of the production site for grinding various tools 200, reducing the investment cost of special fixtures.

[0052] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A clamping mechanism, characterized in that, Includes base, rotating seat and clamping assembly; One end of the rotating seat is rotatably connected to the base; The clamping assembly is located at the other end of the rotating base and includes a housing, a sleeve, a collet, and a screwing component. The housing is located at the other end of the rotating base, the sleeve is rotatably disposed within the housing, and the collet is movably disposed within the sleeve. The collet has a chuck end and a connecting end disposed opposite to each other. The screwing component is rotatably disposed within the sleeve and threadedly connected to the connecting end. By rotating the screwing component, the collet moves within the sleeve closer to the screwing component, causing the sleeve to press against the chuck end, causing the chuck end to radially contract, thereby clamping the tool to be clamped.

2. The clamping mechanism as described in claim 1, characterized in that, The clamping assembly also includes an indexing plate, which is sleeved outside the sleeve. By rotating the indexing plate, the sleeve, the collet, the screwing component, and the clamped tool rotate synchronously by a predetermined angle.

3. The clamping mechanism as described in claim 2, characterized in that, The outer periphery of the indexing plate is evenly provided with multiple positioning grooves; The clamping assembly further includes a locking sleeve and a locking pin. The locking sleeve is disposed on the housing and is disposed opposite to the outer periphery of the indexing plate. The locking pin is movably inserted through the locking sleeve and can be inserted into any of the positioning grooves to achieve positioning of the indexing plate.

4. The clamping mechanism as described in claim 2, characterized in that, The clamping assembly further includes an indicator, which is disposed on the housing and opposite to the outer periphery of the indexing plate. The indicator is provided with an indicator mark pointing to the indexing plate to indicate the rotation angle of the indexing plate.

5. The clamping mechanism as described in claim 1, characterized in that, The clamping mechanism further includes a tool setting member, which is detachably disposed at the other end of the rotating seat, and the central axis of the tool setting member coincides with the rotation axis of the rotating seat. A tool setting reference surface is provided on the side of the tool setting member facing the clamping assembly.

6. The clamping mechanism as described in claim 5, characterized in that, The clamping mechanism further includes a displacement component, which is disposed at the other end of the rotating seat. The clamping component is disposed on the displacement component, and the displacement component is used to drive the clamping component to move along a first direction and a second direction perpendicular to the first direction.

7. The clamping mechanism as described in claim 6, characterized in that, The displacement assembly includes a first slider, a first adjusting member, a second slider, and a second adjusting member. The first slider is slidably disposed at the other end of the rotating seat along the first direction. The first adjusting member passes through the first slider and is threadedly connected to the rotating seat, and is rotatably connected to the first slider. The second slider is slidably disposed on the first slider along the second direction. The second adjusting member passes through the second slider and is threadedly connected to the first slider, and is rotatably connected to the second slider. The clamping assembly is disposed on the second slider.

8. The clamping mechanism as described in claim 7, characterized in that, The rotating seat has a first guide rail protruding on the side facing the first slider, and the first slider has a first groove adapted to the first guide rail on the side facing the rotating seat. The first slider has a second guide rail protruding on the side facing the second slider, and the second slider has a second groove adapted to the second guide rail on the side facing the first slider.

9. The clamping mechanism as described in claim 1, characterized in that, The base has a rotary groove on one side facing the rotating seat. The rotating seat includes a base plate, a rotating shaft and a bearing. The base plate is disposed on the base, and the rotating shaft is connected to the base plate and rotatably disposed in the rotary groove through the bearing.

10. The clamping mechanism as described in claim 9, characterized in that, The outer periphery of the rotating shaft is provided with a limiting groove and a pin hole that penetrates the limiting groove radially along the rotating shaft. The base is provided with limiting insertion holes that communicate with the rotating groove on two or three adjacent sides. Limiting pins are provided in two or three of the limiting insertion holes. The limiting pins can be inserted into the limiting groove and the pin hole at the end that communicates with the corresponding limiting insertion hole to restrict the rotation of the rotating shaft.

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