Space curve groove machining device and method

Abstract

The invention relates to the field of machine manufacturing, and provides a space curve groove machining device and method.The space curve groove machining device comprises a cutter handle, the cutter handle comprises a mounting part and a containing part, one end of the mounting part is used for being connected with a machining shaft, the other end of the mounting part is fixedly connected with the containing part, and a containing hole is formed in the end, away from the mounting part, of the containing part; a containing hole is formed in the mounting portion, the axis of the containing hole and the axis of the mounting portion are arranged in a staggered mode, a cutter is arranged in the containing hole, an adjusting gap is formed between the cutter and the containing hole, an adjusting assembly is arranged on the containing portion, and the adjusting assembly is used for adjusting the eccentric angle of the cutter in the containing hole. By adopting the machining device for machining, the machining precision of the curved groove can be effectively improved, the machining efficiency is improved, the workload of workers is reduced, and the production quality of products is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of mechanical manufacturing technology, and in particular to a spatial curved groove processing device and a processing method. Background Art

[0002] The cam curve zoom lens barrel is the core component in the optical continuous zoom system. Its structure is a curve groove with a certain angle wrapped around the zoom lens barrel. The curve equation of the curve groove is a high-order free curve. The function of the cam curve zoom lens barrel is to connect the lens group through a pin. The pin slides in the curve groove to drive the lens group to achieve the optical continuous zoom function. Therefore, the width size of the curve groove and the processing accuracy of the surface roughness directly affect the realization of the continuous zoom function and the image quality level.

[0003] In the process of processing curved grooves, eccentric milling cutters are important processing tools. Eccentric milling cutters are tools used to process asymmetric or special-shaped parts. Different from traditional symmetrical milling cutters, the design of eccentric milling cutters enables them to better adapt to complex contours and curved surface processing needs, and are particularly suitable for processing complex geometric shapes that require multi-axis linkage machine tools to achieve the desired effect.

[0004] However, when using traditional eccentric milling tools to mill the cam, since the processing of the curved groove is relatively complicated and has high requirements for precision, it usually requires multiple cycles of reciprocating processing to complete the processing of the curved groove. During this process, the eccentricity of the eccentric milling tool needs to be gradually adjusted. For traditional processing tools, the eccentric milling tool needs to be removed from the processing shaft and replaced with milling tools with different eccentricities and then calibrated again before processing. Since multiple processing is required to complete the opening of the curved groove, the milling tool needs to be replaced multiple times, which makes the entire milling process very cumbersome. After each tool change, recalibration is required to ensure the processing accuracy. This reduces the processing efficiency and increases the workload of the staff. At the same time, it also reduces the processing accuracy of the curved groove, which also has an adverse effect on the production quality of subsequent products. Summary of the invention

[0005] In order to solve the above-mentioned technical problems, the purpose of this application is to provide a spatial curved groove processing device and processing method, which can effectively improve the processing accuracy of the curved groove, improve the processing efficiency, reduce the workload of the staff, and ensure the production quality of the product.

[0006] On the one hand, the present application provides a spatial curved groove processing device, which adopts the following technical solution.

[0007] A spatial curved groove processing device comprises a tool handle, the tool handle comprises a mounting portion and a receiving portion, one end of the mounting portion is used for connecting to a processing shaft, and the other end is fixedly connected to the receiving portion, an receiving hole is provided at one end of the receiving portion away from the mounting portion, the axis of the receiving hole is offset from the axis of the mounting portion, a tool is provided in the receiving hole, an adjustment gap is provided between the tool and the receiving hole, an adjustment component is provided on the receiving portion, and the adjustment component is used to adjust the eccentric angle of the tool in the receiving hole.

[0008] By adopting the above technical solution, the eccentric angle of the tool in the receiving hole can be adjusted by adjusting the component, so that the compensation value of the tool can be adjusted more conveniently. When processing the curved groove, there is no need to frequently replace the tool, and no need for multiple calibrations, which effectively improves the processing efficiency and reduces the workload of the staff. At the same time, it also effectively guarantees the processing accuracy of the curved groove and the production quality of subsequent products.

[0009] In some possible embodiments, the adjustment assembly includes a feed gear and a fine-tuning gear, a first connecting hole is opened on the accommodating portion, an adjustment shaft is rotatably arranged in the first connecting hole, the fine-tuning gear is coaxially fixedly sleeved on the adjustment shaft, a second connecting hole is opened on the accommodating portion, the second connecting hole is communicated with the accommodating hole, a threaded push rod is threadedly connected in the second connecting hole, one end of the threaded push rod is used to abut the tool, the feed gear is coaxially fixedly arranged at the end of the threaded push rod away from the tool, the feed gear is meshed with the fine-tuning gear, and a driving member is arranged on the adjustment shaft, the driving member is used to drive the adjustment shaft to rotate.

[0010] By adopting the above technical solution, when the tool compensation value needs to be adjusted, the adjustment shaft is driven to rotate through the driving member, and the adjustment shaft drives the fine-tuning gear to rotate. As the fine-tuning gear rotates, the feed gear can be driven to rotate. As the feed gear rotates, the threaded push rod can be driven to rise or fall in the second connecting hole, thereby adjusting the angle of the tool in the accommodating hole to achieve the effect of adjusting the tool compensation value.

[0011] In some possible embodiments, the driving member is configured as a driving wheel, and the driving wheel is coaxially fixed on the end of the adjustment shaft away from the first connecting hole. The driving wheel is located on the top of the fine-tuning gear, and a driving groove is opened on the top of the driving wheel. The shape of the driving groove is configured as a polygonal square groove.

[0012] By adopting the above technical solution, the internal multi-foot wrench is inserted into the polygonal square groove, and the driving wheel can be driven to rotate by turning the wrench, thereby driving the adjustment shaft to rotate and finally achieving the purpose of adjusting the position of the threaded push rod in the second connecting hole. The operation is simple and convenient, and has good practicality.

[0013] In some possible embodiments, a sliding layer is provided on the inner wall of the tooth groove of the fine-tuning gear, and the sliding layer is used for being slidingly connected with the inner wall of the tooth groove of the feed gear.

[0014] By adopting the above technical solution, as the fine-tuning gear rotates, the feed gear is driven to rotate. During this process, the threaded push rod rises or falls in the second connecting hole. At this time, a relative displacement along the axis direction of the threaded push rod occurs between the feed gear and the fine-tuning gear. The friction between the fine-tuning gear and the feed gear can be effectively reduced through the sliding layer, which facilitates adjustment and effectively reduces the wear between the fine-tuning gear and the feed gear. The use accuracy of the device can be improved while also ensuring the overall service life of the device.

[0015] In some possible embodiments, the pitch of the threaded push rod is set to 0.5 mm, and the transmission ratio of the fine-tuning gear to the feed gear is 1:5.

[0016] By adopting the above technical solution, it is ensured that the tool will produce an eccentricity of 0.01mm for every 36° rotation of the fine-tuning gear, which effectively improves the adjustment accuracy and thus ensures the accuracy and quality of the curved groove processing.

[0017] On the other hand, the present application also provides a method for processing a spatial curved groove, which adopts the following technical solution.

[0018] A method for processing a space curved groove, using the processing device as described above, comprises the following steps:

[0019] S1, connecting the mounting part to the CNC machining axis and installing the tool into the receiving hole;

[0020] S2, by adjusting the components so that a single-side margin x is left between the tool and the curved groove machining trajectory, the grooving is performed along the curved groove machining center trajectory;

[0021] S3, after completing the curved groove grooving process, use a cylindrical plug gauge to measure the curved groove width to obtain the difference ΔH between the actual curved groove width and the nominal dimension width H;

[0022] S4, adjusting the tool compensation value to 1 / 3ΔH by adjusting the component, and machining along the center trajectory of the curved groove again;

[0023] S5, adjust the tool compensation value to 2 / 3ΔH by adjusting the component, and process along the center trajectory of the curved groove again to complete the curved groove processing.

[0024] In some possible embodiments, the tool compensation value is adjusted to 1 / 3ΔH by adjusting the component, and the processing is performed again along the center trajectory of the curved groove. After the processing is completed, the width of the curved groove is measured using a cylindrical plug gauge to obtain the difference ΔH1 between the actual curved groove width and the nominal size width H, and it is determined whether the difference between ΔH1 and ΔH is consistent with the compensation value 1 / 3ΔH. If they are consistent, the tool compensation value is adjusted to 2 / 3ΔH by adjusting the component, and the processing is performed along the center trajectory of the curved groove. If they are inconsistent, the tool compensation value is adjusted to 1 / 3ΔH by adjusting the component, and the processing is performed along the center trajectory of the curved groove.

[0025] In some possible embodiments, after the tool compensation value is adjusted to 1 / 3ΔH again to complete the curved groove trajectory processing, the curved groove width is measured using a cylindrical plug gauge to obtain the difference ΔH2 between the actual curved groove width and the nominal size width H, and it is determined whether ΔH2 and ΔH are consistent with the tool compensation value 2 / 3ΔH. If they are consistent, the tool compensation value is further adjusted to 2 / 3ΔH to complete the curved groove processing. If they are inconsistent, the difference between ΔH2 and ΔH is compensated to the final tool compensation value of 1 / 3ΔH through the adjustment component to complete the curved groove processing.

[0026] In some possible embodiments, the diameter difference of the cylindrical plug gauge is 0.004 mm-0.006 mm.

[0027] In some possible embodiments, when the curved groove width is measured using a cylindrical plug gauge, measurement is performed every 10 mm. After all curved groove width measurements are completed, the arithmetic mean of the obtained curved groove width data is taken, and the difference between the curved groove width data and the nominal width dimension H of the curved groove is obtained.

[0028] In summary, the technical solution of the embodiment of the present application has at least the following advantages and beneficial effects:

[0029] 1. The eccentric angle of the tool in the receiving hole can be adjusted by adjusting the components, so that the compensation value of the tool can be adjusted more conveniently. When processing the curved groove, there is no need to frequently replace the tool, and no need for multiple calibrations, which effectively improves the processing efficiency and reduces the workload of the staff. At the same time, it also effectively guarantees the processing accuracy of the curved groove and the production quality of subsequent products;

[0030] 2. When the tool compensation value needs to be adjusted, the adjusting shaft is driven to rotate by the driving member, and the adjusting shaft drives the fine-tuning gear to rotate. With the rotation of the fine-tuning gear, the feed gear can be driven to rotate. With the rotation of the feed gear, the threaded push rod can be driven to rise or fall in the second connecting hole, thereby adjusting the angle of the tool in the accommodating hole to achieve the effect of adjusting the tool compensation value;

[0031] 3. As the fine-tuning gear rotates, the feed gear is driven to rotate. During this process, the threaded push rod rises or falls in the second connecting hole. At this time, a relative displacement along the axis direction of the threaded push rod occurs between the feed gear and the fine-tuning gear. The sliding layer can effectively reduce the friction between the fine-tuning gear and the feed gear, which is convenient for adjustment and can also effectively reduce the wear between the fine-tuning gear and the feed gear, thereby improving the accuracy of the device and ensuring the overall service life of the device.

[0032] 4. Through multiple cycles of processing and multiple comparisons of differences, the accuracy of curved groove processing can be effectively improved, thereby providing a strong guarantee for the production quality of subsequent products. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the overall structure of the processing device according to an embodiment of the present application;

[0034] Figure 2 It is a schematic diagram of the exploded structure of the fine-tuning gear and the feed gear of an embodiment of the present application;

[0035] Figure 3 This is a schematic diagram of the processing state structure of an embodiment of the present application.

[0036] Icons: 1. Tool handle; 11. Mounting part; 12. Accommodating part; 13. Tool; 2. Adjustment assembly; 21. Feed gear; 22. Fine-tuning gear; 23. First connecting hole; 24. Adjustment shaft; 25. Second connecting hole; 26. Threaded push rod; 3. Driving member; 31. Driving groove. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] The following reference Figures 1 to 3 This application is described in further detail.

[0039] On the one hand, the present application provides a spatial curved groove processing device.

[0040] Reference Figure 1 , 2A spatial curved groove processing device includes a tool handle 1, the tool handle 1 includes a mounting portion 11 and a housing portion 12, one end of the mounting portion 11 is used for connecting to a processing shaft, and the other end is fixedly connected to the housing portion 12, a housing hole is provided at one end of the housing portion 12 away from the mounting portion 11, the axis of the housing hole is offset from the axis of the mounting portion 11, a tool 13 is provided in the housing hole, an adjustment gap is provided between the tool 13 and the housing hole, an adjustment component 2 is provided on the housing portion 12, and the adjustment component 2 is used to adjust the eccentric angle of the tool 13 in the housing hole.

[0041] Reference Figure 1 , 2 The adjustment component 2 includes a feed gear 21 and a fine-tuning gear 22. A first connecting hole 23 is provided on the accommodating portion 12. An adjustment shaft 24 is rotatably arranged in the first connecting hole 23. The fine-tuning gear 22 is coaxially fixedly sleeved on the adjustment shaft 24. A second connecting hole 25 is provided on the accommodating portion 12. The second connecting hole 25 is communicated with the accommodating hole. A threaded push rod 26 is threadedly connected in the second connecting hole 25. One end of the threaded push rod 26 is used to abut against the tool 13. The feed gear 21 is coaxially fixedly arranged at the end of the threaded push rod 26 away from the tool 13. The feed gear 21 is meshed with the fine-tuning gear 22. A driving member 3 is provided on the adjustment shaft 24. The driving member 3 is used to drive the adjustment shaft 24 to rotate.

[0042] The eccentric angle of the tool 13 in the accommodating hole can be adjusted by adjusting the adjustment component 2, so that the compensation value of the tool 13 can be adjusted more conveniently. When processing the curved groove, there is no need to frequently replace the tool 13, and there is no need for multiple calibrations, which effectively improves the processing efficiency and reduces the workload of the staff. At the same time, it also effectively guarantees the processing accuracy of the curved groove and the production quality of subsequent products. When the compensation value of the tool 13 needs to be adjusted, the adjustment shaft 24 is driven to rotate by the driving member 3, and the adjustment shaft 24 drives the fine-tuning gear 22 to rotate. As the fine-tuning gear 22 rotates, the feed gear 21 can be driven to rotate. As the feed gear 21 rotates, the threaded push rod 26 can be driven to rise or fall in the second connecting hole 25, thereby adjusting the angle of the tool 13 in the accommodating hole to achieve the effect of adjusting the compensation value of the tool 13.

[0043] Reference Figure 2 As an embodiment of the present application, the driving member 3 is configured as a driving wheel, which is coaxially fixedly sleeved on the end of the adjustment shaft 24 away from the first connecting hole 23, and the driving wheel is located on the top of the fine-tuning gear 22. A driving groove 31 is opened on the top of the driving wheel, and the shape of the driving groove 31 is set to be a polygonal square groove.

[0044] As an implementation mode of the present application, the polygonal square groove is set as a hexagonal square groove. In actual use, an internal hexagon wrench is inserted into the polygonal square groove. Turning the wrench can drive the drive wheel to rotate, thereby driving the adjustment shaft 24 to rotate and finally achieve the purpose of adjusting the position of the threaded push rod 26 in the second connecting hole 25. The operation is simple and convenient, and it has good practicality.

[0045] As an implementation mode of the present application, a sliding layer is provided on the inner wall of the tooth groove of the fine-tuning gear 22, and the sliding layer is used to be slidably connected with the inner wall of the tooth groove of the feed gear 21. As the fine-tuning gear 22 rotates, the feed gear 21 is driven to rotate. During this process, the threaded push rod 26 rises or falls in the second connection hole 25. At this time, a relative displacement along the axis direction of the threaded push rod 26 occurs between the feed gear 21 and the fine-tuning gear 22. The sliding layer can effectively reduce the friction between the fine-tuning gear 22 and the feed gear 21, which facilitates adjustment and effectively reduces the wear between the fine-tuning gear 22 and the feed gear 21. While improving the accuracy of the device, it can also ensure the overall service life of the device.

[0046] As an implementation method of the present application, the pitch of the threaded push rod 26 is set to 0.5mm, and the transmission ratio of the fine-tuning gear 22 to the feed gear 21 is 1:5. This ensures that the tool 13 will produce an eccentricity of 0.01mm for every 36° rotation of the fine-tuning gear 22, effectively improving the adjustment accuracy, thereby ensuring the accuracy and quality of the curved groove processing.

[0047] On the other hand, the present application also provides a method for processing a spatial curved groove.

[0048] A method for processing a space curved groove, using the above processing device, comprises the following steps:

[0049] S1, connecting the mounting portion 11 to the CNC machining axis and installing the tool 13 into the receiving hole;

[0050] S2, by adjusting the component 2 so that a single-side margin x is left between the tool 13 and the curved groove machining trajectory, the groove is cut along the curved groove machining center trajectory;

[0051] S3, after completing the curved groove grooving process, use a cylindrical plug gauge to measure the curved groove width to obtain the difference ΔH between the actual curved groove width and the nominal dimension width H;

[0052] S4, adjusting the compensation value of the tool 13 to 1 / 3ΔH by adjusting the component 2, and processing again along the center track of the curved groove;

[0053] S5, adjusting the compensation value of the tool 13 to 2 / 3ΔH by adjusting the component 2, and processing along the center trajectory of the curved groove again to complete the curved groove processing.

[0054] The compensation value of tool 13 is adjusted to 1 / 3ΔH by adjusting component 2, and the processing is performed again along the center trajectory of the curved groove. After the processing is completed, the width of the curved groove is measured by using a cylindrical plug gauge to obtain the difference ΔH1 between the actual width of the curved groove and the nominal size width H, and it is determined whether the difference between ΔH1 and ΔH is consistent with the compensation value 1 / 3ΔH. If they are consistent, the compensation value of tool 13 is adjusted to 2 / 3ΔH by adjusting component 2, and the processing is performed along the center trajectory of the curved groove. If they are inconsistent, the compensation value of tool 13 is adjusted to 1 / 3ΔH by adjusting component 2, and the processing is performed along the center trajectory of the curved groove.

[0055] After adjusting the tool 13 compensation value to 1 / 3ΔH again to complete the curved groove trajectory processing, use a cylindrical plug gauge to measure the curved groove width to obtain the difference ΔH2 between the actual curved groove width and the nominal size width H, and judge whether ΔH2 and ΔH are consistent with the tool 13 compensation value 2 / 3ΔH. If they are consistent, continue to adjust the tool 13 compensation value to 2 / 3ΔH to complete the curved groove processing. If they are inconsistent, the difference between ΔH2 and ΔH is compensated to the final tool 13 compensation value of 1 / 3ΔH through adjustment component 2 to complete the curved groove processing.

[0056] The specific calculation steps are as follows: first, calculate the difference between the actual size and 1 / 3ΔH, perform algebraic calculation on the difference and 1 / 3ΔH and take the absolute value, and then compensate the absolute value to the next 1 / 3ΔH for processing. After the processing is completed, continue to measure the difference between the nominal size width H to see whether the relationship between ΔH2 and ΔH is consistent with the compensation value 2 / 3ΔH. If consistent, continue to complete the curved groove processing with the remaining 1 / 3ΔH; if inconsistent, continue to perform algebraic calculation on the difference between the compensation value and the actual value and take the absolute value, and compensate the final data to the compensation amount of the last 1 / 3ΔH to complete the curved groove processing.

[0057] The diameter difference of the cylindrical plug gauge is 0.004mm-0.006mm. As an implementation manner of the present application, the diameter difference of the cylindrical plug gauge is 0.005mm.

[0058] When using a cylindrical plug gauge to measure the curved groove width, measure once every 10mm. After completing all the curved groove width measurements, take the arithmetic mean of the curved groove width data obtained and obtain the difference between the curved groove nominal width dimension H.

[0059] Reference Figure 3 In actual use, the single-side margin x is set to 0.2mm, the zoom lens barrel is installed on the workbench, and the installation is completed using CNC, and then it can be processed along the center trajectory of the curved groove.

[0060] When it is necessary to adjust the compensation value of the tool 13, first insert the fine-tuning gear 22 into the first connecting hole 23, and use the hexagonal wrench to pre-tighten it to ensure that the tooth surface of the fine-tuning gear 22 is tightly fitted with the surface of the feed gear 21. At this time, the compensation value of the tool 13 can be adjusted according to actual needs. After the adjustment is completed, remove the fine-tuning gear 22 and continue to use the tool 13 to process along the center trajectory of the curved groove.

[0061] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A spatial curved groove processing device, characterized in that: The tool handle comprises a mounting portion and a receiving portion, one end of the mounting portion is used for connecting to a machining shaft, and the other end is fixedly connected to the receiving portion, a receiving hole is provided at one end of the receiving portion away from the mounting portion, the axis of the receiving hole is offset from the axis of the mounting portion, a tool is provided in the receiving hole, an adjustment gap is provided between the tool and the receiving hole, an adjustment component is provided on the receiving portion, and the adjustment component is used to adjust the eccentric angle of the tool in the receiving hole.

2. A spatial curved groove processing device according to claim 1, characterized in that: The adjustment assembly includes a feed gear and a fine-tuning gear. A first connecting hole is provided on the accommodating portion, and an adjustment shaft is rotatably arranged in the first connecting hole. The fine-tuning gear is coaxially fixedly sleeved on the adjustment shaft. A second connecting hole is provided on the accommodating portion, and the second connecting hole is communicated with the accommodating hole. A threaded push rod is threadedly connected in the second connecting hole, and one end of the threaded push rod is used to abut the tool. The feed gear is coaxially fixedly arranged at an end of the threaded push rod away from the tool, and the feed gear is meshed with the fine-tuning gear. A driving member is provided on the adjustment shaft, and the driving member is used to drive the adjustment shaft to rotate.

3. A spatial curved groove processing device according to claim 2, characterized in that: The driving member is configured as a driving wheel, and the driving wheel is coaxially fixedly sleeved on the end of the adjustment shaft away from the first connecting hole. The driving wheel is located on the top of the fine-tuning gear, and a driving groove is opened on the top of the driving wheel. The shape of the driving groove is configured as a polygonal square groove.

4. A spatial curved groove processing device according to claim 2, characterized in that: A sliding layer is covered on the inner wall of the tooth groove of the fine-tuning gear, and the sliding layer is used for sliding connection with the inner wall of the tooth groove of the feed gear.

5. The spatial curved groove processing device according to claim 2, characterized in that: The pitch of the threaded push rod is set to 0.5 mm, and the transmission ratio of the fine-tuning gear to the feed gear is 1:

5.

6. A method for processing a space curved groove, characterized in that: The processing device according to any one of claims 1 to 5 comprises the following steps: S1, connecting the mounting part to the CNC machining axis and installing the tool into the receiving hole; S2, by adjusting the components so that a single-side margin x is left between the tool and the curved groove machining trajectory, the grooving is performed along the curved groove machining center trajectory; S3, after completing the curved groove grooving process, use a cylindrical plug gauge to measure the curved groove width to obtain the difference ΔH between the actual curved groove width and the nominal dimension width H; S4, adjusting the tool compensation value to 1 / 3ΔH by adjusting the component, and machining along the center trajectory of the curved groove again; S5, adjust the tool compensation value to 2 / 3ΔH by adjusting the component, and process along the center trajectory of the curved groove again to complete the curved groove processing.

7. A spatial curved groove machining method according to claim 6, wherein the tool compensation value is adjusted to 1 / 3ΔH by adjusting the component, and machining is performed again along the curved groove center trajectory, characterized in that: After processing is completed, use a cylindrical plug gauge to measure the width of the curved groove to obtain the difference ΔH1 between the actual curved groove width and the nominal size width H, and judge whether the difference between ΔH1 and ΔH is consistent with the compensation value 1 / 3ΔH. If consistent, adjust the tool compensation value to 2 / 3ΔH through the adjustment component, and process along the center trajectory of the curved groove. If inconsistent, adjust the tool compensation value to 1 / 3ΔH through the adjustment component, and process along the center trajectory of the curved groove.

8. A method for processing a space curved groove according to claim 7, characterized in that: After adjusting the tool compensation value to 1 / 3ΔH again to complete the curved groove trajectory processing, use a cylindrical plug gauge to measure the curved groove width to obtain the difference ΔH2 between the actual curved groove width and the nominal size width H, and judge whether ΔH2 and ΔH are consistent with the tool compensation value 2 / 3ΔH. If they are consistent, continue to adjust the tool compensation value to 2 / 3ΔH to complete the curved groove processing. If they are inconsistent, the difference between ΔH2 and ΔH is compensated to the final tool compensation value of 1 / 3ΔH through the adjustment component to complete the curved groove processing.

9. A method for processing a space curved groove according to any one of claims 6 to 8, characterized in that: The diameter difference of the cylindrical plug gauge is 0.004mm-0.006mm.

10. A method for processing a space curved groove according to any one of claims 6 to 8, characterized in that: When using a cylindrical plug gauge to measure the curved groove width, measure once every 10mm. After completing all the curved groove width measurements, take the arithmetic mean of the curved groove width data obtained and obtain the difference between the curved groove nominal width dimension H.

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