A flexible abrasive tool assembly for abrasive finishing of a structural member and a method of using the same

Abstract

The present application relates to the technical field of material grinding and polishing, and discloses a flexible grinding and polishing tool assembly for structural parts and a using method thereof, which is composed of a tool with pre-tightening force mark scale, strip-shaped slot hole and internal cavity, a tool bar with strip-shaped slot hole and a standard tool handle; the tool and the tool bar are connected in the form of spline and can axially slide relative to each other; a pre-tightening spring is installed between the tool and the tool bar; the pre-tightening force of the tool assembly after installation can be set by adjusting the axial relative position between the tool and the tool bar according to the pre-tightening force mark scale on the tool, and a bolt and nut are used for fixation to ensure the required axial contact force during grinding and polishing. Different pre-tightening forces can be set for different materials and different tool types to meet the grinding and polishing working condition requirements, and the flexible adjustment structure of the tool can release the excessive grinding and polishing axial force to ensure the safety of workpiece grinding and polishing.

Description

Technical Field

[0001] This invention relates to the field of material grinding and polishing technology, specifically to a flexible grinding and polishing tool assembly for grinding and polishing structural components and its method of use. Background Technology

[0002] Polishing after machining structural components is a crucial step in ensuring product quality and precision, effectively addressing issues such as machining residue, tool marks, and machining steps. With the rapid development of aerospace and other equipment, the demand for polishing structural components is increasing daily. Traditional manual polishing methods, relying on fitters, pose risks to workers due to dust and noise, and are insufficient to meet the growing demand for structural component polishing. Therefore, the use of digital equipment, such as robots, for polishing has become a major research direction in structural component polishing.

[0003] Digital equipment for grinding and polishing offers advantages such as precise motion trajectories, high efficiency, and minimal health hazards. However, compared to traditional manual grinding and polishing by fitters, it lacks the perception and control over the grinding and polishing process, making it impossible to adjust the grinding and polishing strategy in real time according to actual conditions. This leads to processing risks such as over-polishing and part ablation, and it cannot effectively guarantee the grinding and polishing quality of structural components while completing the surface polishing of parts.

[0004] To address the aforementioned issues, the industry currently primarily employs the addition of a grinding and polishing force control unit to control the grinding and polishing process. This involves using force sensors to detect the force exerted on the tool during grinding and polishing, and then using a specific algorithm to fine-tune the tool position in real time, further ensuring relatively uniform force distribution on the tool during the process. However, this method requires modifications to the processing equipment to add a force control adjustment unit, resulting in relatively high application costs. Furthermore, due to differences in tool position compensation algorithms, the achieved grinding and polishing results are inconsistent. Summary of the Invention

[0005] To address the problems and shortcomings of the existing technology, this invention proposes a flexible grinding and polishing tool assembly for structural components and its usage method. The assembly can release excess axial grinding and polishing force through the flexible adjustment structure of the tool, ensuring the safety of workpiece grinding and polishing. It enables safe grinding and polishing of features such as the web of structural components, and can also set different preloads for different materials and different tool types to meet the requirements of grinding and polishing conditions.

[0006] To achieve the above-mentioned objectives, the technical solution of the present invention is as follows:

[0007] A flexible polishing tool assembly for structural components includes a tool holder, a tool shank, and a tool connected in sequence. The tool includes a tool body with a polishing medium at its tail. The tool body has a cavity along its axial direction and an opening at its end communicating with the cavity. A spring is disposed within the cavity. The tool shank includes a clamping section and a sliding adjustment section. The clamping section is connected to the tool holder, and the sliding adjustment section is inserted into the cavity of the tool body and abuts against the spring, allowing the tool shank to slide within the cavity. A sliding locking element is provided between the tool body and the sliding adjustment section. The movable locking component can slide relative to the tool body and the sliding adjustment section. When the sliding adjustment section abuts against the spring in the cavity and the spring is compressed, the sliding locking component is used to limit the sliding limit position of the sliding adjustment section in the tool body and provide the preload required for grinding and polishing through the compressed spring. When the sliding adjustment section separates from the spring in the cavity, the sliding locking component is used to release the preload and lock the sliding adjustment section, thereby limiting the relative position of the sliding adjustment section and the tool body and ensuring that the sliding adjustment section does not fall off the tool body. The outer wall of the tool body is provided with a preload marking scale that cooperates with the sliding locking component.

[0008] Preferably, the sliding locking component includes a locking bolt, a first strip-shaped slot is provided on the side wall of the tool body, a second strip-shaped slot is provided on the sliding adjustment section, the locking bolt is installed in the first strip-shaped slot and the second strip-shaped slot, and can slide in the first strip-shaped slot and the second strip-shaped slot, and a locking nut is provided at the end of the locking bolt.

[0009] Preferably, the locking bolt is provided with a scale plate, the inner arc surface of the scale plate is in contact with the outer surface of the tool body, the locking nut abuts against the scale plate, and the locking bolt can drive the scale plate to slide along the tool axis.

[0010] Preferably, the outer surface of the cutter body has a scale marking the preload, and the magnitude of the preload in the current state can be directly read according to the relative position of the scale plate on the scale.

[0011] Preferably, the inner wall of the cavity is provided with a spline groove, and the outer wall of the sliding adjustment section is provided with a spline that mates with the spline groove, and the spline is slidably disposed in the spline groove.

[0012] A method for using a flexible grinding and polishing tool assembly for grinding and polishing structural components, the method being implemented based on the aforementioned flexible grinding and polishing tool assembly, includes the following steps:

[0013] Step S1. Determine the grinding and polishing preload and spring parameters.

[0014] Based on the selection of the material of the workpiece to be ground and the cutting tool, the preload F0 required during grinding and polishing is determined, a spring with an initial length of L0 and an elastic coefficient of K is selected, and the assembly of the flexible grinding and polishing tool assembly is completed.

[0015] Step S2. Establish a table showing the correspondence between preload and scale plate height.

[0016] Before first use, use an external force measuring device to measure the spring preload F when the scale plate is at different scale heights h, and establish a table showing the correspondence between the preload F and the scale plate height h.

[0017] Step S3. Adjust the tool position based on the target preload.

[0018] Based on the required preload F0, find the corresponding scale plate height h0 in the Fh relationship table, adjust the sliding locking component so that the scale plate is located at the height h0, and then fix the sliding locking component to ensure that the sliding locking component will not be displaced along the axial direction of the tool when the tool assembly is subjected to axial external force.

[0019] Step S4: Calculate the tool length change and correct the digital machining tool length value

[0020] With the scale plate at its highest position h max The initial tool length value D0 is calibrated on the tool end face. After the tool position adjustment is completed, the tool length value is calculated.

[0021] D = D0 - (h max -h);

[0022] The blade length value D is compensated to the control system of the grinding and polishing equipment to ensure that the blade tip moves according to the predetermined programmed trajectory.

[0023] Step S5: Perform the grinding and polishing process.

[0024] The flexible grinding and polishing tool assembly is fixed on the spindle of the equipment to execute the workpiece grinding and polishing program.

[0025] Preferably, regarding the selection of the spring length L0, when the scale plate is at its highest position h... max At this time, the distance d from the bottom of the cavity of the tool body to the end face of the sliding adjustment section is at its maximum value. max It should meet

[0026] L0>d max ;

[0027] Regarding the selection of the spring constant K of the preload spring, when the scale plate is at the lowest position h min At that time, the distance d from the bottom of the tool body cavity to the end face of the sliding adjustment section is at its minimum value. min It should meet

[0028] (L0-dmin )·K>F0.

[0029] The beneficial effects of this invention are:

[0030] This invention addresses the problem of discrepancies between the actual and theoretical states of parts during grinding and polishing due to factors such as part deformation and clamping errors, which prevent the effective guarantee of constant grinding and polishing. Starting with the grinding and polishing tools, a mechanical structure is used to achieve self-adaptation of the grinding and polishing tool assembly to part deviations. This approach has low hardware costs and does not require reliance on data acquisition, processing, or adjustment algorithms. Furthermore, it allows for grinding and polishing of workpieces made of different materials by changing the grinding and polishing media and preload springs, demonstrating strong versatility. In addition, this invention can be extended to fitters, reducing the dependence of grinding and polishing work on the skill level of fitters and facilitating the rapid grinding and polishing processing and delivery of structural parts. Attached Figure Description

[0031] The foregoing and hereinafter detailed description of the invention becomes clearer when read in conjunction with the following drawings, in which:

[0032] Figure 1 Exploded view of the flexible grinding and polishing tool assembly structure;

[0033] Figure 2 A schematic diagram of the flexible grinding and polishing tool assembly;

[0034] Figure 3 This is a schematic diagram of the tool structure;

[0035] Figure 4 This is a schematic diagram of the tool holder structure;

[0036] Figure 5 This is a schematic diagram of the scale plate structure;

[0037] Figure 6 This is a schematic diagram showing the force adjustment of a flexible grinding and polishing tool assembly.

[0038] Figure 7 Flowchart for the use of flexible grinding and polishing tool assembly.

[0039] In the picture:

[0040] 1. Cutting tool; 2. Spring; 3. Tool holder; 4. Scale plate; 5. Locking bolt; 6. Locking nut; 7. Tool shank; 1.1. Cutting tool body; 1.2. Grinding and polishing media; 1.3. First slotted hole; 1.4. Preload marking scale; 1.5. Spline groove; 3.1. Clamping section; 3.2. Sliding adjustment section; 3.3. Second slotted hole; 3.4. Spline; 4.1-Inner arc surface; 4.2-Mounting hole. Detailed Implementation

[0041] To enable those skilled in the art to better understand the technical solutions of this invention, specific embodiments will be used to further illustrate the technical solutions for achieving the objectives of this invention. It should be noted that the technical solutions claimed by this invention include, but are not limited to, the following embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort should fall within the scope of protection of this invention.

[0042] Digital equipment for grinding and polishing offers advantages such as precise motion trajectories, high efficiency, and minimal health hazards. However, compared to traditional manual grinding and polishing by fitters, it lacks the perception and control over the grinding and polishing process, making it impossible to adjust the grinding and polishing strategy in real time according to actual conditions. This leads to processing risks such as over-polishing and part ablation, and it cannot effectively guarantee the grinding and polishing quality of structural components while completing the surface polishing of parts.

[0043] Currently, the industry mainly uses the addition of a grinding and polishing force control unit to control the grinding and polishing process. Force sensors detect the force exerted on the tool during grinding and polishing, and then, based on a certain algorithm, the tool position is fine-tuned in real time to further ensure relatively uniform force on the tool during the grinding and polishing process. However, this method requires modification of the processing equipment to add a force control adjustment unit, making it relatively expensive. Furthermore, due to differences in tool position compensation algorithms, the achieved grinding and polishing results are inconsistent.

[0044] To address the aforementioned problems, embodiments of the present invention propose a flexible polishing tool assembly and its usage method for polishing structural components, applicable to polishing scenarios involving structural components made of different materials such as aluminum alloys and titanium alloys. The flexible polishing tool assembly is designed with a tool featuring a preload marking, a slotted hole, and an internal cavity; a tool holder with a splined structure and a slotted hole; a preload spring; a scale plate; fixing bolts and nuts; and a standard tool holder. The tool and tool holder are connected via a spline joint, allowing for axial relative sliding to adjust their relative positions. A preload spring is installed between the tool and tool holder. The preload force after the tool assembly is installed can be set by adjusting the axial relative position between the tool and tool holder according to the preload marking on the tool. Bolts and nuts are used for fixation to ensure the required axial contact force during polishing. Furthermore, the preload spring releases excess axial force caused by part deformation or clamping errors. The invention can set different preloads for different materials and different tool types to meet the requirements of grinding and polishing conditions. It can also release excess grinding and polishing axial forces through the flexible adjustment structure of the tool, ensuring the safety of workpiece grinding and polishing.

[0045] To facilitate understanding of the technical solution of this invention, the flexible grinding and polishing tool assembly is first introduced and explained.

[0046] This embodiment discloses a flexible grinding and polishing tool assembly for structural components and its usage method, as shown in the attached instruction manual. Figures 1-5 The cutting tool assembly mainly includes a tool holder 7, a tool shank 3, and a cutting tool 1 connected sequentially from front to back; wherein,

[0047] The cutting tool 1 includes a cutting tool body 1.1, which is a cylinder with a single-ended open internal cavity structure. A polishing medium 1.2 that directly participates in the polishing of the workpiece is fixed at the bottom end of the cutting tool body 1.1. A spline groove 1.5 is provided on the inner wall of the internal cavity of the cutting tool body 1.1. The outer wall of the cutting tool body 1.1 has a long strip-shaped first slot 1.3 that penetrates the cutting tool body 1.1. The first slot 1.3 communicates with the internal cavity of the cutting tool body 1.1 and penetrates the cutting tool body 1.1 radially.

[0048] The tool holder 3 is mainly divided into two sections: a cylindrical clamping section 3.1 that mates with the tool shank 7, and a sliding adjustment section 3.2 that mates with the tool body 1.1. The sliding adjustment section 3.2 is inserted into the inner cavity of the tool body 1.1 and can slide within the inner cavity. The sliding adjustment section 3.2 has a spline 3.4 that mates with the spline groove 1.5, and a long, narrow second slot 3.3 that penetrates the sliding adjustment section 3.2 radially.

[0049] A sliding locking element is provided through the first strip-shaped slot 1.3 and the second strip-shaped slot 3.3. The sliding locking element can slide in the two strip-shaped slots. There are preload marking scales 1.4 on both sides of the first strip-shaped slot 1.3, which cooperate with the sliding locking element to mark the preload. When the sliding adjustment section 3.2 abuts against the spring 2 in the inner cavity, the sliding locking element is used to provide the preload. When the sliding adjustment section 3.2 separates from the spring 2 in the inner cavity, the sliding locking element is used to release the preload and lock the sliding adjustment section 3.2, thereby locking the entire tool holder 3.

[0050] In this invention, the tool body 1.1 and the sliding adjustment section 3.2 of the tool holder 3 are in a mating relationship. The inner diameter of the inner cavity structure of the tool body 1.1 is the same as the cylindrical outer diameter of the sliding adjustment section 3.2. The spline groove 1.5 on the tool body 1.1 and the spline structure 3.4 on the sliding adjustment section 3.2 can be accurately mated to ensure that the sliding adjustment section 3.2 can slide axially inside the tool body 1.1.

[0051] Furthermore, in this invention, the sliding locking component is a locking bolt 5, which is disposed in the first strip-shaped slot 1.3 and the second strip-shaped slot 3.3. The width of the first strip-shaped slot 1.3 on the tool body 1.1 and the second strip-shaped slot 3.3 on the sliding adjustment section 3.2 is slightly larger than the diameter of the locking bolt 5, ensuring that the locking bolt 5 can smoothly pass through the first strip-shaped slot 1.3 and the second strip-shaped slot 3.3, and can slide smoothly in the first strip-shaped slot 1.3 and the second strip-shaped slot 3.3. The locking bolt 5 is also provided with a locking nut 6. After tightening the locking nut 6, the locking nut 6 abuts against the outer wall of the tool body 1.1.

[0052] Furthermore, in this invention, the locking bolt 5 is also provided with a scale plate 4, which is an arc-shaped plate structure and has a circular mounting hole in the radial direction. During installation, its inner arc surface fits against the outer surface of the tool body, and the diameter of the inner arc surface is the same as the outer diameter of the tool body, ensuring a tight fit. The diameter of the mounting hole on the scale plate 4 is slightly larger than the diameter of the locking bolt 5, ensuring that the locking bolt 5 can pass smoothly through the mounting hole.

[0053] In this invention, different scale points on the preload marking scale 1.4 correspond to different preloads. The scale aligned with the end face of the scale plate 4 represents the preload of the spring in the current installation state. Before application, the preload corresponding to each scale is determined by an external force measuring device, thereby establishing a preload-scale correspondence table.

[0054] The installation process of the flexible grinding and polishing tool assembly involved in this embodiment is as follows:

[0055] Install the spring in the inner cavity of the tool body 1.1, and then install the sliding adjustment section 3.2 of the tool holder 3 in the inner cavity of the tool body 1.1. The spring 2 is compressed by the bottom surface of the inner cavity of the tool body 1.1 and the end face of the sliding adjustment section 3.2. During installation, ensure that the first slot 1.3 and the second slot 3.3 coincide. Then, pass the locking bolt 5 through the scale plate 4, the first slot 1.3, the second slot 3.3, and the other scale plate 4 on the side of the locking nut 6 in sequence, and tighten it with the locking nut 6. Then, select a suitable tool holder 7 and assemble it with the clamping section 3.1 of the tool holder 3 to complete the assembly of the entire tool set.

[0056] Furthermore, the working principle of the flexible grinding and polishing tool assembly involved in this invention is as follows:

[0057] ① After the tool assembly is assembled, the two scale plates 4 are pressed onto the tool body 1.1 by the locking bolt 5 and the locking nut 6 to ensure that the locking bolt 5 and the scale plates 4 do not move along the axis of the tool body 1.1;

[0058] ② The locking bolt 5 and the scale plate 4 are fixed relative to the tool body 1.1. The sliding adjustment section 3.2 can slide axially in the inner cavity of the tool body 1.1 until the two ends of the second strip-shaped slot 3.3 on the sliding adjustment section 3.2 are restricted by the locking bolt 5.

[0059] ③When grinding and polishing are not performed, the preload force due to the compression of spring 2 will act between the end face of the sliding adjustment section 3.2 and the bottom surface of the inner cavity of the tool body 1.1, so that the locking bolt 5 always contacts one end of the second slot 3.3;

[0060] ④ When the axial force caused by processing is greater than the preload provided by spring 2, spring 2 will continue to compress and deform, causing tool 1 to move axially relative to tool holder 3, thereby reducing the axial force generated by grinding and polishing until the axial force and preload of grinding and polishing reach a new balance, ensuring uniform force and safety of grinding and polishing of the workpiece.

[0061] Preferably, in this invention, spline groove 1.5 and spline 3.4 are usually 4-tooth, 6-tooth, or other common spline tooth numbers, which can be determined according to the working conditions.

[0062] Preferably, in this invention, the polishing medium 1.2 is a common polishing tool such as a brush or sandpaper.

[0063] Preferably, in this invention, the preload scale 1.4 is evenly spaced.

[0064] Preferably, in this invention, the spring 2 is a common spring, and its outer diameter is slightly smaller than the inner diameter of the inner cavity structure of the tool body 1.1, so as to ensure that it can be installed inside the tool body 1.1.

[0065] Based on the same inventive concept, this embodiment also discloses a method for using a flexible grinding and polishing tool assembly for the safe grinding and polishing of structural components, the specific implementation steps of which are as follows:

[0066] Step S1. Determine the grinding and polishing preload and preload spring parameters. The step-by-step implementation plan is as follows:

[0067] Step S101. Based on the material type and polishing characteristics of the workpiece to be polished, study the polishing process parameters and determine the axial force F0 that the tool should exert on the workpiece during polishing.

[0068] Step S102. Pre-assemble the flexible grinding and polishing tool assembly, and adjust the position of the scale plate 4 to the maximum height h. max At this location, measure the maximum value of the distance d from the bottom of the cavity of the measuring tool body 1.1 to the end face of the sliding adjustment section 3.2. max Adjust the position of scale plate 4 to the minimum height h. min At that location, the minimum value of d is measured. min ;

[0069] Step S103. Based on the initial length L0 of spring 2 and the spring constant K, L0 > d max and (L0-d) min Select an appropriate spring 2 according to the principle of K > F0, and complete the assembly of the flexible grinding and polishing tool according to the assembly diagram of the flexible grinding and polishing tool assembly.

[0070] Step S2. Establish a table showing the correspondence between preload and scale plate height.

[0071] A table showing the correspondence between preload F and scale plate height h was established using either the step-by-step measurement method or the proportional calculation method.

[0072] ① Step-by-step measurement method: Starting from position 4 on the scale, measure from h... min to h max Within the range, the preload provided by the spring 2 is measured by an external force measuring device when the scale plate 4 is aligned with each mark on the preload mark 1.4, and a corresponding table of preload Fh is established.

[0073] ② Proportional calculation method: Use an external measuring device to measure the position of scale plate 4 at h respectively. min and h max Preload F provided at the time max and F min The following formula is used to obtain the correspondence between the preload force F and the height h of the scale plate, and a corresponding table is established.

[0074] F = K·(L0-hd) min );

[0075] Where F is the preload, K is the spring constant of spring 2, L0 is the initial length of spring 2, h is the height of the scale plate, and d min For the scale plate at position 4, at h min When, that is, the length of spring 2 when it is compressed to its shortest state.

[0076]

[0077] Step S3. Adjust the tool position based on the target preload.

[0078] Based on the required axial preload F0, find the corresponding scale position h0 in the Fh relationship table, loosen the locking bolt 5 and the locking nut 6, adjust both scale plates 4 to the position h0, and tighten the locking bolt 5 and the locking nut 6 to ensure that the scale plate 4 will not be displaced along the axial direction of the tool 1 when the tool assembly is subjected to axial external force.

[0079] Step S4. Calculate the tool length change and correct the digital machining tool length value. The step-by-step implementation plan is as follows:

[0080] Step S401. The measuring scale plate 4 is located at its highest and lowest positions h. max At that time, the distance between the end face of the polishing medium 1.2 and the surface of the tool holder 7 that is in contact with the spindle is recorded as the initial tool length value D0;

[0081] Step S402. Based on the actual tool installation position h0, according to the formula D=D0-(h max -h) Calculate the actual cutter length value D, and modify the actual cutter length value D into the control system of the grinding and polishing equipment, thereby correcting the program drive point during grinding and polishing to ensure that the cutter tip moves according to the predetermined programmed trajectory.

[0082] Step S5: Execute the grinding and polishing program. Install the adjusted flexible grinding and polishing tool assembly on the equipment spindle and execute the workpiece grinding and polishing program. For example... Figure 6 As shown, during normal grinding and polishing, spring 2 provides the preload F0 to ensure the axial clamping force required for grinding and polishing. If the actual position of the part deviates from the theoretical position by δ due to factors such as part deformation or clamping errors, and the tool operates according to the theoretical program, the axial force between the grinding and polishing tool and the workpiece will increase by N. At this time, spring 2 will be compressed, its length changing from d0 to d, and the preload will increase. When spring 2 undergoes compression deformation, the axial force N between the tool 1 and the workpiece will also decrease rapidly, eventually reaching a new axial force balance state for the tool, that is:

[0083] F = F0 + K·(d0 - d) = F0 + N.

[0084] The above description is merely a preferred embodiment of the present invention and is not intended to hinder the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A method of using a flexible grinding and polishing tool assembly for grinding and polishing structural components, characterized in that, The method of use is based on a flexible polishing tool assembly for structural component polishing. The flexible polishing tool assembly includes a tool holder, a tool shank, and a tool connected in sequence. The tool includes a tool body with polishing media at its tail. The tool body has an axial cavity inside and an opening at its end communicating with the cavity. A spring is installed inside the cavity. The tool shank includes a clamping section and a sliding adjustment section. The clamping section is connected to the tool holder, and the sliding adjustment section is inserted into the cavity of the tool body and abuts against the spring. The tool shank can move freely in the cavity. The tool body slides within the cavity; a sliding locking element is provided between the tool body and the sliding adjustment section. The sliding locking element can slide relative to the tool body and the sliding adjustment section. When the sliding adjustment section abuts against the spring in the cavity and the spring is compressed, the sliding locking element is used to limit the sliding limit position of the sliding adjustment section in the tool body and provide the preload required for grinding and polishing through the compressed spring. When the sliding adjustment section separates from the spring in the cavity, the sliding locking element is used to limit the relative position of the sliding adjustment section and the tool body. The outer wall of the tool body is provided with a preload marking scale that cooperates with the sliding locking element. The method of use includes the following steps: Step S1. Determine the grinding and polishing preload and spring parameters. Based on the selection of the workpiece material and the cutting tool, determine the required preload during grinding and polishing. Choose an initial length of And elasticity coefficient is K The spring is used to complete the assembly of the flexible grinding and polishing tool assembly; Step S2. Establish a table showing the correspondence between preload and scale plate height. Before first use, use an external force measuring device to measure the scale plate at different scale heights. h At that time, the preload of the spring F and establish preload F Height of scale plate h The correspondence table; Step S3. Adjust the tool position based on the target preload. According to the required preload ,exist Find the height of the corresponding scale in the relationship table. Adjust the sliding locking mechanism to position the scale plate at the desired height. Position the sliding locking element and then fix it in place to ensure that the sliding locking element will not be displaced along the axial direction of the tool when the tool assembly is subjected to axial external force. Step S4: Calculate the tool length change and correct the digital machining tool length value With the scale at its highest position Initial tool length value calibrated on the tool end face After adjusting the tool position, calculate the tool length value. ； and cutter length value D The compensation is sent to the control system of the grinding and polishing equipment to ensure that the blade tip moves according to the predetermined programmed trajectory; Step S5: Perform the grinding and polishing process. The flexible grinding and polishing tool assembly is fixed on the spindle of the equipment to execute the workpiece grinding and polishing program.

2. The method of using a flexible grinding and polishing tool assembly for structural components according to claim 1, characterized in that, The sliding locking component includes a locking bolt. The side wall of the tool body is provided with a first strip-shaped slot that penetrates the tool body. The sliding adjustment section is provided with a second strip-shaped slot that penetrates the sliding adjustment section. The locking bolt is installed in the first strip-shaped slot and the second strip-shaped slot and can slide in the first strip-shaped slot and the second strip-shaped slot. The end of the locking bolt is provided with a locking nut.

3. The method of using a flexible grinding and polishing tool assembly for structural components according to claim 2, characterized in that, The locking bolt is equipped with a scale plate. The inner arc surface of the scale plate fits against the outer surface of the tool body. The locking nut abuts against the scale plate, and the locking bolt can drive the scale plate to slide along the tool axis.

4. The method of using a flexible grinding and polishing tool assembly for structural components according to claim 1, characterized in that, The inner wall of the cavity is provided with a spline groove, and the outer wall of the sliding adjustment section is provided with a spline that mates with the spline groove. The spline is slidably disposed in the spline groove.

5. The method of using a flexible grinding and polishing tool assembly for structural components according to claim 1, characterized in that, Regarding spring length The selection when the scale is at its highest position. At that time, the distance from the bottom of the cavity of the tool body to the end face of the sliding adjustment section d Maximum value It should meet ； Regarding the spring constant of the preload spring K The selection when the scale is at its lowest position. At that time, the distance from the bottom of the tool body cavity to the end face of the sliding adjustment section d Minimum value It should meet 。

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