A floating cutter

Abstract

The utility model discloses a kind of floating cutters, comprising: body pedestal;Polishing part;Floating mechanism, including floating pedestal and floating base, floating pedestal and floating base have preset interval between;First elastic member, one end of first elastic member is connected with floating pedestal, the other end of first elastic member is connected with floating base;Limiting portion is equipped on floating pedestal, limiting cooperation portion is equipped on floating base, limiting portion and limiting cooperation portion can form limiting cooperation, to limit floating base within the range of preset interval floating.The utility model's floating cutter is set with preset interval between floating pedestal and floating base, first elastic member is set between floating pedestal and floating base, so that floating base can float within the range of preset interval, during processing, when polishing part contacts the deformation part of part, so that polishing part can float up and down, to continue processing to adapt the shape of part, to avoid excessive processing or the situation of missing processing.

Description

Technical Field

[0001] This utility model relates to the field of grinding device technology, and in particular to a floating cutting tool. Background Technology

[0002] In the finishing stage of CNC machine tools, a tool holder mounted on the spindle carries a special tool. By calling a preset machining program, a small amount of cutting is performed on the edges, holes or grooves of the part to remove burrs or sharp edges left over from the previous process.

[0003] In actual production, it has been found that when parts deform, the original machining program becomes unsuitable for the actual material toolpath, leading to over-machining or under-machining. To address this issue, existing technologies use probes to perform multiple probe tests before machining to calculate compensation values, which are then added to the machining program to prevent over-machining or under-machining. However, this method suffers from instability, low processing efficiency, and low yield. Utility Model Content

[0004] The purpose of this invention is to provide a floating tool that allows the tool to process directly without the need for pre-processing detection, thereby improving processing efficiency and yield.

[0005] This utility model provides a floating cutting tool, including: Body base; Polished parts; A floating mechanism, comprising a floating base and a floating base, wherein the floating base is connected to the main body base, the floating base is connected to the side of the floating base away from the main body base, the grinding component is connected to the side of the floating base away from the floating base, and a preset distance exists between the floating base and the floating base. A first elastic element is disposed between the floating base and the floating base. One end of the first elastic element is connected to the floating base, and the other end of the first elastic element is connected to the floating base, so that the floating base floats within the range of the preset distance. in: The floating base is provided with a guide part, and the floating base is provided with a guide engagement part. The guide part and the guide engagement part can form a guide engagement. The floating base is provided with a limiting part, and the floating base is provided with a limiting engagement part. The limiting part and the limiting engagement part can form a limiting engagement part to restrict the floating base from floating within the range of the preset distance.

[0006] In the floating cutter described above, preferably, the limiting part includes a first bolt, the floating base is provided with a first threaded hole, the limiting mating part includes a limiting block, the side wall of the limiting block is provided with a first limiting groove, the first bolt passes through the first threaded hole and extends into the first limiting groove.

[0007] In the floating cutter described above, preferably, the side of the floating base facing the floating base is further provided with a second limiting groove, and the limiting block is disposed in the second limiting groove and can float within the second limiting groove.

[0008] In the floating cutter described above, preferably, the guide portion includes a linear bearing disposed on the floating base, and the guide mating portion includes a pin disposed on the floating base, the pin being inserted into the linear bearing to form a guide mating.

[0009] In the floating tool described above, preferably, the floating tool further includes an adjustment mechanism for adjusting the preset spacing.

[0010] In the floating cutter described above, preferably, the adjusting mechanism includes a second bolt, the floating base has a through hole, the floating base has a second threaded hole, the through hole and the second threaded hole are correspondingly arranged, and the second bolt passes through the through hole and the second threaded hole.

[0011] In the floating cutter described above, preferably, the adjusting mechanism further includes a second elastic element, a first mounting groove is provided on the side of the floating base away from the floating base, the through hole is formed in the bottom wall of the first mounting groove, the second bolt is installed in the first mounting groove, and the second elastic element is sleeved on the second bolt and located in the first mounting groove.

[0012] In the floating tool described above, preferably, the floating base has a second mounting groove on the side opposite to the floating base, and one end of the grinding part is installed in the second mounting groove.

[0013] In the floating tool described above, preferably, the floating base is provided with a third bolt and a third threaded hole, the third threaded hole is connected to the second assembly groove, and the third bolt passes through the third threaded hole and abuts against the grinding part.

[0014] In the floating cutter described above, preferably, the floating cutter further includes a protective component that covers the outer periphery of the floating mechanism.

[0015] Compared with the prior art, the present invention has a preset distance between the floating base and the floating base, and a first elastic element is set between the floating base and the floating base, so that the floating base can float within the preset distance range. During the processing, when the grinding part comes into contact with the deformed part of the part, the grinding part can float up and down under the action of the deformed part to adapt to the shape of the part and continue processing, thereby avoiding over-processing or under-processing, which is conducive to improving processing efficiency and yield. Attached Figure Description

[0016] Figure 1 This is a perspective view of the floating cutter provided in an embodiment of this utility model; Figure 2 This is a bottom view of the floating tool provided in an embodiment of this utility model; Figure 3 This is an exploded view of the floating tool provided in an embodiment of this utility model; Figure 4 This is a perspective view of the floating base provided in an embodiment of the present invention; Figure 5 This is a perspective view of the floating base provided in an embodiment of the present invention from another angle; Figure 6 yes Figure 2 Cross-sectional view along the AA direction; Figure 7 yes Figure 2 Cross-sectional view along the BB direction; Figure 8 yes Figure 2 Cross-sectional view along the CC direction.

[0017] Explanation of reference numerals in the attached figures: 10-Base of the main body; 20 - Polished parts; 30-Floating mechanism, 31-Floating base, 311-First threaded hole, 312-Second limiting groove, 313-Second threaded hole, 32-Floating base, 321-Through hole, 322-First assembly groove, 323-Second assembly groove, 324-Third bolt, 325-Third threaded hole, 33-Guide part, 331-Linear bearing, 34-Limiting part, 341-First bolt, 35-Guide mating part, 351-Pin, 36-Limiting mating part, 361-Limiting block, 362-First limiting groove; 40 - First elastic element; 50 - Adjustment mechanism; 51 - Second bolt; 52 - Second elastic element; 60 - Protective components; 100-parts. Detailed Implementation

[0018] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] Reference Figures 1 to 3 As shown, this utility model provides a floating tool, including a body base 10, a grinding component 20, a floating mechanism 30, and a first elastic element 40, wherein: The main body base 10 can be connected to a machine tool interface. The machine tool drives the main body base 10 to rotate, thereby driving the floating mechanism 30 and the grinding part 20 to rotate, so as to realize the processing of the part 100. The main body base 10 can be a CNC tool holder body.

[0020] The grinding part 20 can be a grinding tool such as a sanding rod. Under the action of high-speed rotation, the grinding part 20 can remove burrs or sharp edges from the part 100.

[0021] The floating mechanism 30 includes a floating base 31 and a floating base 32. The floating base 31 is connected to the main body base 10, and the floating base 32 is connected to the side of the floating base 31 away from the main body base 10. The grinding part 20 is connected to the side of the floating base 32 away from the floating base 31. There is a preset distance between the floating base 31 and the floating base 32. The high-speed rotation of the main body base 10 drives the floating mechanism 30 to rotate synchronously at high speed. The centrifugal force generated by the high-speed rotation causes the floating base 32 to float downward, thereby creating the preset distance between the floating base 31 and the floating base 32. During the processing of the grinding part 20, when the part 100 is partially convex, the floating base 32 can be raised instantly to avoid over-processing. When the part 100 is partially concave, the floating base 32 can automatically lower to ensure complete processing. The preset distance allows the floating base 32 to have space to float up and down, thus providing space for the grinding part 20 to float, preventing the grinding part 20 from over-processing or under-processing the part 100.

[0022] In order to enable the floating base 32 to float within a preset distance, a first elastic element 40 is provided between the floating base 31 and the floating base 32. The first elastic element 40 can be a spring. One end of the first elastic element 40 is connected to the floating base 31, and the other end of the first elastic element 40 is connected to the floating base 32. During the floating tool processing, when the grinding part 20 contacts the deformed part of the part 100, the first elastic element 40 is subjected to force and undergoes elastic deformation, which causes it to stretch or compress. As a result, the floating base 32 floats up and down with the stretching or contraction of the first elastic element 40.

[0023] The floating base 32 of this application adapts to the shape of part 100 by floating up and down, enabling smooth processing. To ensure the stability of the floating path of the floating base 32, in the embodiments provided in this application, reference is made to... Figure 3As shown, the floating base 31 is provided with a guide part 33, and the floating base 32 is provided with a guide mating part 35. The guide part 33 and the guide mating part 35 can form a guide mating. When the floating base 32 floats up and down, the guide mating part 33 and the guide mating part 35 make the floating path of the floating base 32 unique, thereby ensuring the accuracy of the grinding part 20.

[0024] In order to reduce the failure rate during floating tool machining, continue to refer to... Figure 3 As shown, a limiting part 34 is provided on the floating base 31, and a limiting engagement part 36 is provided on the floating base 32. The limiting part 34 and the limiting engagement part 36 can form a limiting engagement to restrict the floating base 32 from floating within a preset distance range. Through the action of the limiting part 34 and the limiting engagement part 36, the floating base 32 can float up and down within a limited range (within the preset distance range). Even if the centrifugal force suddenly disappears (due to power failure or spindle emergency stop) or the first elastic element 40 fails due to excessive compression or elongation, the limiting action of the limiting part 34 and the limiting engagement part 36 will lock the floating base 32 within the preset distance range, thereby preventing the floating tool from falling or the spindle from being damaged due to the above reasons.

[0025] In one feasible implementation, refer to Figure 3 , Figure 4 and Figure 6 As shown, the limiting part 34 includes a first bolt 341, the floating base 31 is provided with a first threaded hole 311, the limiting mating part 36 includes a limiting block 361, the side wall of the limiting block 361 is provided with a first limiting groove 362, the first bolt 341 passes through the first threaded hole 311 and extends into the first limiting groove 362.

[0026] When the floating base 32 floats up and down, the first limiting groove 362 moves relative to the first bolt 341. The length of the first limiting groove 362 in the floating direction is the maximum distance at which the floating base 32 can float. When the centrifugal force suddenly disappears or the elasticity of the first elastic element 40 fails, and the floating distance of the floating base 32 is greater than the length of the first limiting groove 362, it may cause the floating mechanism 30 to collide with the main shaft or the floating tool to fall, which could be destructive. The cooperation between the first bolt 341 and the first limiting groove 362 can prevent the above situation from occurring. That is, when the above situation occurs, the first bolt 341 can abut against the wall surface of the opposite ends of the first limiting groove 362 in the floating direction to limit the floating base 32 from continuing to float up and down, thereby limiting the floating of the floating base 32 to a controllable range. Even if the centrifugal force disappears or the elasticity of the first elastic element 40 fails, the limiting effect of the first bolt 341 and the first limiting groove 362 can support the floating base 32 to prevent destructive situations from occurring.

[0027] Furthermore, referring to Figure 8 As shown, the floating base 31 is provided with a second limiting groove 312 on the side facing the floating base 32. The limiting block 361 is located in the second limiting groove 312 and can float in the second limiting groove 312. When the floating base 32 floats up and down, the limiting block 361 can move up and down relative to the second limiting groove 312. The cooperation between the limiting block 361 and the second limiting groove 312 can ensure that the relative position between the floating base 32 and the floating base 31 is fixed. When the preset distance between the floating base 32 and the floating base 31 is zero, the limiting block 361 extends completely into the second limiting groove 312. When the preset distance is the maximum distance, at least part of the limiting block 361 is located in the second limiting groove 312. When the relative position between the floating base 32 and the floating base 31 shifts, the limiting block 361 cannot extend into the second limiting groove 312, and thus the floating base 32 cannot float, causing the floating tool to malfunction. Therefore, the cooperation between the limiting block 361 and the second limiting groove 312 enables the floating base 32 to float normally.

[0028] Furthermore, under the dual limiting action of the first bolt 341 and the first limiting groove 362, and the limiting block 361 and the second limiting groove 312, the movement of the floating base 32 is restricted to a controllable and consistent range, which helps to ensure the consistency of the floating tool in processing the part 100, thereby improving processing efficiency.

[0029] In the embodiments provided in this application, reference is made to Figure 3 and Figure 4 As shown, the guide part 33 includes a linear bearing 331 on the floating base 31, and the guide mating part 35 includes a pin 351 provided on the floating base 32. The pin 351 is inserted into the linear bearing 331 to form a guide mating.

[0030] The linear bearing 331 cooperates with the pin 351. The rolling of the balls within the linear bearing 331 onto the pin 351 enables the floating base 32 to move linearly relative to the floating base 31. The rolling friction between the balls and the pin 351 is less than the sliding friction, resulting in smoother movement of the floating base 32. Furthermore, the integrated design of the pin 351 and the floating base 32 prevents jamming during the machining process of the floating tool. Through the cooperation of the pin 351 and the linear bearing 331, the floating base 32 can only reciprocate along the extension direction of the pin 351, thus ensuring the uniqueness of the floating direction of the floating base 32.

[0031] The preset distance between the floating base 32 and the floating base 31 can be adjusted according to the actual processing scenario, as shown in the reference. Figure 2 As shown, the floating tool also includes an adjustment mechanism 50, which is used to adjust the preset spacing so that the floating tool can be used to process different parts.

[0032] In one feasible implementation, refer to Figures 3 to 5 as well as Figure 8 As shown, the adjustment mechanism 50 includes a second bolt 51. A through hole 321 is provided on the floating base 32, and a second threaded hole 313 is provided on the floating base 31. The through hole 321 and the second threaded hole 313 are correspondingly arranged, and the second bolt 51 passes through both the through hole 321 and the second threaded hole 313. The preset distance between the floating base 32 and the floating base 31 can be controlled by the depth to which the second bolt 51 is screwed into the second threaded hole 313. When the floating tool is not processing, the supporting force of the floating base 32 on the floating base 31 and the main body base 10 is greater than the sum of the weight of the floating base 31, the weight of the main body base 10, and the elastic force of the first elastic element 40 on the floating base 32. The distance between the floating base 32 and the floating base 31 is zero. When the floating tool is processing, the centrifugal force generated by the high-speed rotation of the main body base 10 acts on the floating base 32, allowing the floating base 32 to float up and down within the preset distance range.

[0033] Furthermore, to enhance the support capacity of the floating base 32 for the floating base 31 and the main body base 10, the adjustment mechanism 50 further includes a second elastic element 52, which can be a spring. The floating base 32 has a first mounting groove 322 on the side opposite to the floating base 31. A through hole 321 is formed in the bottom wall of the first mounting groove 322. A second bolt 51 is installed in the first mounting groove 322, and the second elastic element 52 is sleeved on the second bolt 51 and located within the first mounting groove 322. During the process of screwing the second bolt 51 into the second threaded hole 313, the second bolt 51 compresses the second elastic element 52. The second elastic element 52 undergoes elastic deformation, accumulating elastic force, and applies this force to the floating base 32, thereby supporting the floating base 32. Under the action of the second elastic element 52, the floating process of the floating base 32 is more stable during the operation of the floating tool. It should be noted that when the second bolt 51 is tightened to the bottom, the preset spacing will be 0, even in the machining state. At this time, this application can realize the function of end-repairing the bottom side of the sand rod without disassembling the sand rod.

[0034] In the embodiments provided in this application, reference is made to Figure 5 As shown, the floating base 32 is provided with a second assembly groove 323 on the side opposite to the floating base 31. One end of the grinding part 20 is installed in the second assembly groove 323. The grinding part 20 is connected to the floating base 32 through the second assembly groove 323, so that the grinding part 20 and the floating base 32 float up and down synchronously during the processing.

[0035] Specifically, refer to Figure 5 and Figure 7As shown, the floating base 32 is provided with a third bolt 324 and a third threaded hole 325. The third threaded hole 325 communicates with the second assembly groove 323, and the third bolt 324 passes through the third threaded hole 325 and abuts against the grinding part 20. After the third bolt 324 is screwed into the third threaded hole 325, it abuts against the grinding part 20 to fix the grinding part 20 in the second assembly groove 323, thereby facilitating the replacement of different grinding parts 20 to meet different processing requirements.

[0036] Because there is a preset gap between the floating base 31 and the floating base 32, dust or other impurities can easily enter between them, leading to malfunctions such as jamming of the linear bearing 331. To avoid this situation, refer to... Figure 1 As shown, the floating tool of this application also includes a protective component 60, which covers the outer periphery of the floating mechanism 30 and can be fixed to the outer periphery of the floating mechanism 30 by bolts. During processing, the protective component 60 isolates the area covered by the preset distance between the floating base 32 and the floating base 31 from the external environment, thereby preventing dust or impurities from entering between the floating base 32 and the floating base 31, which can effectively reduce the failure rate.

[0037] Based on the above embodiments, the working process of the floating tool in this application is as follows: Adjust the depth of the second bolt 51 into the second threaded hole 313 according to the processing requirements, so as to adjust the preset distance between the floating base 32 and the floating base 31.

[0038] Before processing, the floating base 31 abuts against the upper surface of the floating base 32, and the distance between the floating base 31 and the floating base 32 is zero. During processing, the main body base 10 rotates at high speed, driving the floating mechanism 30 to rotate at high speed. The centrifugal force generated by the high-speed rotation causes the floating base 32 to float downward.

[0039] During the surface processing of the part 100, when the part 100 is partially raised, the raised part pushes the grinding part 20, causing the grinding part 20 and the floating base 32 to rise, thereby preventing over-processing. When the part 100 is partially recessed, the floating base 32 drives the grinding part 20 to descend, ensuring that the recessed area can still be processed, thus preventing missed processing.

[0040] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A floating cutting tool, characterized in that, include: Body base; Polished parts; A floating mechanism, comprising a floating base and a floating base, wherein the floating base is connected to the main body base, the floating base is connected to the side of the floating base away from the main body base, the grinding component is connected to the side of the floating base away from the floating base, and a preset distance exists between the floating base and the floating base. A first elastic element is disposed between the floating base and the floating base. One end of the first elastic element is connected to the floating base, and the other end of the first elastic element is connected to the floating base, so that the floating base floats within the range of the preset distance. in: The floating base is provided with a guide part, and the floating base is provided with a guide engagement part. The guide part and the guide engagement part can form a guide engagement. The floating base is provided with a limiting part, and the floating base is provided with a limiting engagement part. The limiting part and the limiting engagement part can form a limiting engagement part to restrict the floating base from floating within the range of the preset distance.

2. The floating tool according to claim 1, characterized in that, The limiting part includes a first bolt, the floating base is provided with a first threaded hole, the limiting mating part includes a limiting block, the side wall of the limiting block is provided with a first limiting groove, the first bolt passes through the first threaded hole and extends into the first limiting groove.

3. The floating tool according to claim 2, characterized in that, The floating base is provided with a second limiting groove on the side facing the floating base. The limiting block is located in the second limiting groove and can float within the second limiting groove.

4. The floating tool according to claim 1, characterized in that, The guide portion includes a linear bearing disposed on the floating base, and the guide mating portion includes a pin disposed on the floating base. The pin is inserted into the linear bearing to form a guide mating.

5. The floating tool according to claim 1, characterized in that, The floating tool also includes an adjustment mechanism for adjusting the preset spacing.

6. The floating tool according to claim 5, characterized in that, The adjustment mechanism includes a second bolt, the floating base has a through hole, the floating base has a second threaded hole, the through hole and the second threaded hole are correspondingly arranged, and the second bolt passes through the through hole and the second threaded hole.

7. The floating tool according to claim 6, characterized in that, The adjustment mechanism further includes a second elastic element. The floating base has a first assembly groove on the side opposite to the floating base. The through hole is formed in the bottom wall of the first assembly groove. The second bolt is installed in the first assembly groove. The second elastic element is sleeved on the second bolt and located in the first assembly groove.

8. The floating tool according to claim 1, characterized in that, The floating base is provided with a second assembly groove on the side opposite to the floating base, and one end of the grinding part is installed in the second assembly groove.

9. The floating tool according to claim 8, characterized in that, The floating base is provided with a third bolt and a third threaded hole. The third threaded hole is connected to the second assembly groove. The third bolt passes through the third threaded hole and abuts against the grinding part.

10. The floating tool according to claim 1, characterized in that, The floating cutter also includes a protective component, which covers the outer periphery of the floating mechanism.

Images