Four-axis rotary table building and high-precision debugging method

Abstract

The application relates to a four-axis rotary table building and high-precision debugging method, which comprises the following steps: leveling the end surface of a four-axis system power disc in the Y-axis direction and the Z-axis direction; measuring and adjusting the runout of a power rotary disc core shaft matching surface; installing the power rotary disc core shaft; measuring and adjusting the runout of the outer circle surface of the power rotary disc core shaft; setting the original point of a four-axis rotary Y and Z machining coordinate system; leveling the end surface of a driven end support mechanism rotary disc in the Y-axis direction and the Z-axis direction; installing the rotary disc core shaft of the driven end support mechanism; measuring the deviation of the upper bus and the side bus on the power rotary disc core shaft and the driven rotary disc core shaft; adjusting the position of the driven end support mechanism so that the bus lines of the two core shafts coincide; four-axis rotary table installation and precision debugging. The method greatly improves the precision of the four-axis rotary table; compared with a combined clamp, the angle control precision can be greatly improved; four-axis linkage machining is realized, the product part surface precision is accurately controlled; the positioning precision and machining precision requirements of non-rotary parts are met, the machining quality and part installation positioning efficiency are improved, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mechanical processing, and particularly relates to a four-axis rotary table building and high-precision debugging method. BACKGROUND

[0002] In numerical control machining of complex parts, the ordinary numerical control milling machine is usually a three-axis linkage mechanism, and the worktable and the tool spindle cannot change the spatial angle position, so it cannot meet the machining of complex parts with composite angle surface elements. Such product parts are usually machined by using a five-axis numerical control machining center, but the equipment procurement cost is high, and the later maintenance cost is also high, which will directly increase the numerical control machining cost of product parts, and it is difficult to be popularized and applied in enterprises.

[0003] In order to solve the numerical control machining problem of complex parts and reduce the machining cost of parts, the conventional solution is to use a four-axis numerical control machining center or a combined fixture. According to the structure of the parts and the requirements of the drawings, different angle fixed fixtures are combined, and three-axis numerical control machine tools are used to machine the elements on the angle surfaces respectively. However, the prior art has the following disadvantages:

[0004] 1. The combined fixture has poor universality, and different fixed fixtures need to be assembled according to different part structures and drawing requirements, which cannot meet the numerical control machining requirements of various parts, and a large number of combined fixtures occupy warehouse space and increase management cost;

[0005] 2. The numerical control machining precision is greatly affected by the assembly precision of the fixture and the manufacturing precision of the element, and the elements on different spatial angle surfaces of the parts need to be machined respectively, and the position precision is lost due to multiple clamping, so the precision requirements between the angle surface elements cannot be guaranteed.

[0006] 3. The four-axis machining center is limited by the three-jaw chuck of the rotary shaft, and only small rotary parts can be fixed, and non-rotary parts or large box parts cannot be clamped. SUMMARY

[0007] The purpose of the present application is to provide a four-axis rotary table building and high-precision debugging method, which improves the rotary shaft of the four-axis numerical control machining center, builds a four-axis rotary table, and increases the positioning and clamping capacity of the machine tool worktable for non-rotary parts, so as to solve the multi-sequence machining problem of non-rotary parts or large box parts on three-axis or four-axis machining centers, save the procurement cost of five-axis equipment, reduce the product manufacturing cost, and realize the machining of elements on other spatial angle positions by one-time positioning and clamping of complex parts.

[0008] The purpose of the present application is achieved by the following technical scheme:

[0009] A four-axis rotary table building and high-precision debugging method, comprising the following steps:

[0010] A, power end installation and precision adjustment

[0011] A1, adjust the power disc end surface along the Y-axis direction and the Z-axis direction;

[0012] A2, measure and adjust the power disc spindle matching surface runout;

[0013] A3, install the power end positioning spindle on the power disc 3 center hole of the four-axis system;

[0014] A4, measure and adjust the power disc spindle outer circle surface runout;

[0015] B, driven end installation and precision adjustment

[0016] B1, adjust the driven end support mechanism disc end surface along the Y-axis direction and the Z-axis direction;

[0017] B2, install the driven end support mechanism 6 disc spindle 3, and install the driven end positioning spindle on the driven disc center hole;

[0018] B3, measure the power disc spindle and the driven disc spindle upper and side generatrix deviation;

[0019] B4, adjust the driven end support mechanism 6 position to make the two spindle generatrix coincide;

[0020] C, four-axis rotary table installation and precision adjustment

[0021] C1, install the power end L-shaped support plate 7 on the power disc 3;

[0022] C2, install the driven end L-shaped support plate 7 on the driven disc;

[0023] C3, measure and adjust the horizontal angle and height of the two end support plates;

[0024] C4, place the four-axis rotary table 1 on the power end L-shaped support plate 2 and the driven end L-shaped support plate 7;

[0025] C5, measure and adjust the four-axis rotary table horizontal degree along the X-axis and Y-axis directions.

[0026] Further, step A1, specifically: install the dial gauge on the numerical control machine tool spindle, move the numerical control milling machine spindle, drive the dial gauge needle to the power disc 3 end surface, and press the dial to the 0 scale position, respectively move the numerical control milling machine spindle along the Y-axis direction and the Z-axis direction, measure the horizontal direction and the Y-axis deviation value of the power disc 3 end surface, and the vertical direction and the Z-axis deviation value.

[0027] Further, step A2, specifically: according to the deviation value, use the gasket to pad under the four-axis system base, fine-tune the four-axis system base position and placement angle, until the horizontal direction of the power rotary table end face coincides with the Y axis, the vertical direction coincides with the Z axis, the dial gauge does not jump during the moving measurement process, stop adjusting the four-axis system base position, and bolted.

[0028] Further, step A4, specifically: move the dial gauge needle to the outer circular surface of the power end positioning mandrel, and press the gauge to the 0 scale position, make the numerical control milling machine four-axis rotate, drive the power rotary table 3 to rotate, measure the runout precision of the outer circular surface of the power end positioning mandrel 3, if the power end positioning mandrel does not coincide with the numerical control milling machine four-axis rotation axis, need to use the hammer to knock the power end positioning mandrel position, until the dial gauge does not jump during the power end positioning mandrel rotation process, stop knocking, at this time the axis of the power end positioning mandrel coincides with the numerical control milling machine four-axis rotation axis.

[0029] Further, step A5, specifically: use the numerical control milling machine electronic probe to measure the power end positioning mandrel side generatrix and upper generatrix respectively, taking the Y axis and Z axis positions of the power end positioning mandrel axis as the reference, set the four-axis coordinate system origin in the Y axis direction and Z axis direction.

[0030] Further, step B1, specifically: move the numerical control milling machine spindle, drive the dial gauge needle to the driven rotary table end face, and press the gauge to the 0 scale position, move the numerical control milling machine spindle along the Y axis direction and Z axis direction respectively, measure the horizontal direction deviation value of the driven disc end face and the vertical direction deviation value; according to the deviation value, use the gasket to pad under the driven end support mechanism 6 base, fine-tune the driven end support mechanism 6 base position and placement angle, until the horizontal direction of the driven end support mechanism 6 rotary table end face coincides with the Y axis, the vertical direction coincides with the Z axis, the dial gauge does not jump during the moving measurement process, stop adjusting the driven end support mechanism 6 base position, and bolted.

[0031] Further, step B3, specifically: move the numerical control milling machine spindle, drive the dial gauge needle to the side generatrix of the power end positioning mandrel, and press the gauge to the 0 scale position, move the numerical control milling machine spindle position along the X axis negative direction, make the dial gauge needle to the side generatrix of the driven end positioning mandrel, measure the Y direction coaxial deviation of the power end positioning mandrel and the driven end positioning mandrel, according to the deviation value, use the hammer to knock the driven end auxiliary support mechanism base along the Y axis direction position, until the dial gauge measurement value on the power end positioning mandrel and the driven end positioning mandrel is consistent, the dial gauge does not jump during the moving measurement process, stop adjusting the driven end auxiliary support mechanism base position.

[0032] Further, step B4, specifically: moving the main shaft of the numerical control milling machine, driving the needle of the dial gauge to the upper generatrix of the power end positioning mandrel, and pressing the dial gauge to the 0 scale position, moving the numerical control milling machine along the negative direction of the X axis, moving the needle of the dial gauge to the upper generatrix of the driven end positioning mandrel, measuring the Z-direction coaxial deviation of the power end positioning mandrel and the driven end positioning mandrel, according to the deviation value, using the copper hammer to knock the position of the driven end positioning mandrel along the Z-axis direction until the measurement value of the dial gauge on the power end positioning mandrel and the measurement value on the driven end positioning mandrel are consistent, the dial gauge no longer jumps during the moving measurement process, stop adjusting the position of the driven end positioning mandrel, and use the bolt to fix the base of the driven end support mechanism.

[0033] Further, step C3 includes the following steps:

[0034] C31, moving the main shaft of the numerical control milling machine, driving the needle of the dial gauge to the upper surface of the driven end L-shaped supporting plate 7, and pressing the dial gauge to the 0 scale position, moving the numerical control milling machine along the Y-axis direction, measuring the horizontal angle deviation of the driven end L-shaped supporting plate 7, according to the measured value, manually adjusting the angle of the driven rotating disc to make the upper surface of the driven end L-shaped supporting plate 7 coincide with the Y-axis, the dial gauge no longer jumps during the moving measurement process, stop adjusting the angle position of the driven end L-shaped supporting plate 7;

[0035] C32, moving the main shaft of the numerical control milling machine, driving the needle of the dial gauge to the upper surface of the power end L-shaped supporting plate 2, and pressing the dial gauge to the 0 scale position, moving the numerical control milling machine along the Y-axis direction, measuring the horizontal angle deviation of the power end L-shaped supporting plate 2, according to the measured value, controlling the numerical control milling machine to rotate the four-axis, adjusting the angle of the power rotating disc 3 to make the upper surface of the power end L-shaped supporting plate 2 coincide with the Y-axis, the dial gauge no longer jumps during the moving measurement process, stop adjusting the angle position of the power end L-shaped supporting plate 2;

[0036] C33, moving the main shaft position along the X-axis direction again, moving the needle of the dial gauge to the driven end L-shaped supporting plate 7, measuring the height difference between the upper surface of the power end L-shaped supporting plate 2 and the upper surface of the driven end L-shaped supporting plate 7, according to the measured value, using the gasket to pad under the base of the driven end supporting mechanism 6, adjusting the height position of the driven end L-shaped supporting plate until the height of the power end L-shaped supporting plate 2 and the driven end L-shaped supporting plate 7 is adjusted to be consistent, the dial gauge no longer jumps during the moving measurement process, stop adjusting the height of the driven end L-shaped supporting plate 7, and use the bolt to fix the base of the driven end supporting mechanism 6.

[0037] Further, step C5, specifically: move the numerical control milling machine spindle, drive the dial gauge needle to the four-axis rotary table 1 plane, move the numerical control milling machine spindle position along the X-axis direction, measure the coincidence accuracy of the four-axis rotary table workbench and the X-axis. If there is a deviation in the X-axis direction of the workbench, according to the measured value, use the feeler gauge to pad under the L-shaped supporting plate until the four-axis rotary table is leveled and fixed with bolts.

[0038] Compared with the prior art, the beneficial effects of the present application are:

[0039] 1. The four-axis rotary table building and high-precision debugging method simplifies the four-axis rotary table building process, saves equipment improvement consumables, and greatly improves the accuracy of the four-axis rotary table.

[0040] 2. The numerical control instruction is used to control the workbench rotation angle, which can greatly improve the angle control accuracy compared with the combined clamp.

[0041] 3. Combined with CAD, CAM automatic programming software calculation, four-axis linkage machining is realized, and the product part surface accuracy is accurately controlled.

[0042] 4. The numerical control machining of each spatial angle surface is completed by one-time positioning and clamping, which meets the positioning accuracy and machining accuracy requirements of non-rotary parts, improves the machining quality and part installation positioning efficiency, and reduces the product manufacturing cost. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0044] Figure 1 Step flow chart of four-axis rotary table building and high-precision debugging method;

[0045] Figure 2 Side view of four-axis rotary table device;

[0046] Figure 3 Installation schematic diagram of machine tool four-axis system;

[0047] Figure 4 Structure schematic diagram of four-axis rotary table device;

[0048] Figure 5 Structure schematic diagram of driven end.

[0049] In the figure, 1. Four-axis rotary table 2. Power end L-shaped supporting plate 3. Power rotary disc 4. Machine tool four-axis system 5. Machine tool workbench 6. Driven end supporting mechanism 7. Driven end L-shaped supporting plate. Detailed Implementation

[0050] The present invention will be further described below with reference to embodiments:

[0051] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0052] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this invention, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0053] like Figures 3-5 As shown, the four-axis rotary table assembly consists of a four-axis rotary table 1, a power-end L-shaped support plate 2, a power turntable 3, a machine tool four-axis system 4, a machine tool worktable 5, a driven-end support mechanism 6, and a driven-end L-shaped support plate 7. The auxiliary components for assembling the four-axis rotary table assembly include the four-axis rotary table 1, the power-end L-shaped support plate 2, the driven-end L-shaped support plate 3, and the driven-end support mechanism 6. The power-end L-shaped support plate 2 is connected and fixed to the power turntable 3 of the machine tool four-axis system 4 via a hole-shaft fit and bolts. The driven-end support mechanism 6 is bolted and fixed to the machine tool worktable 5, and is coaxial with the rotation axis of the power turntable 3 of the machine tool four-axis system 4. The turntable on the driven-end L-shaped support mechanism 6 is connected and fixed via a hole-shaft fit and bolts. The four-axis rotary table 1 rests on the power-end L-shaped support plate 2 and the driven-end L-shaped support plate 7, and is fixed using bolts. The assembled four-axis rotary table assembly is driven by the four-axis power of the CNC machine tool to rotate.

[0054] Manufacturing of auxiliary components for four-axis rotary table devices:

[0055] like Figure 2 As shown, the height H from the rotation center of the CNC milling machine's power turntable to the CNC milling machine's worktable, i.e., the machine tool worktable 5, is measured. The driven end support mechanism 6 of the four-axis rotary table is designed and manufactured so that the rotation axis of the driven turntable is coaxial with the rotation axis of the power turntable 3. The diameter D of the center hole of the power turntable 3 of the CNC milling machine's four-axis system, i.e., the position dimension L and angle dimension α of the connecting T-slot of the power turntable 3 are measured. The power end L-shaped support plate 2, the driven end L-shaped support plate 7, the power end positioning mandrel, and the driven end positioning mandrel are designed and manufactured. The distance between the power end L-shaped support plate 2 and the driven end L-shaped support plate 7, and the position of the mounting holes of the four-axis rotary table 1 are measured. The four-axis rotary table device is designed and manufactured.

[0056] The building and precision debugging of the four-axis rotary table device includes the following steps:

[0057] 1. Power end installation and precision debugging:

[0058] 11. Install the dial gauge on the main shaft of the numerical control machine tool, and move the dial gauge with the movement of the main shaft of the numerical control machine tool.

[0059] 12. Move the main shaft of the numerical control milling machine, drive the dial gauge needle to the end face of the power rotary table 3, and press the dial gauge to the 0 scale position. Move the main shaft of the numerical control milling machine along the Y-axis direction and the Z-axis direction respectively, measure the horizontal direction deviation of the end face of the power rotary table 3 and the vertical direction deviation of the Z-axis. According to the deviation value, use shims to pad under the four-axis system base, fine-tune the position and angle of the four-axis system base until the horizontal direction of the end face of the power rotary table coincides with the Y-axis and the vertical direction coincides with the Z-axis. During the movement and measurement of the dial gauge, the reading does not jump again. Stop adjusting the position of the four-axis system base and bolt it.

[0060] 13. Install the power end positioning mandrel on the center hole of the power rotary table 3 of the four-axis system, and connect it with loose fit.

[0061] 14. Move the dial gauge needle to the outer circular surface of the power end positioning mandrel, and press the dial gauge to the 0 scale position. Rotate the four-axis of the numerical control milling machine to drive the power rotary table 3 to rotate, and measure the runout precision of the outer circular surface of the power end positioning mandrel 3. If the power end positioning mandrel does not coincide with the rotation axis of the four-axis of the numerical control milling machine, use a hammer to knock the power end positioning mandrel until the dial gauge reading does not jump again during the rotation of the power end positioning mandrel. Stop knocking at this time, and the axis of the power end positioning mandrel coincides with the rotation axis of the four-axis of the numerical control milling machine.

[0062] 15. Use the Y-axis and Z-axis positions of the power end positioning mandrel as the reference, and use the electronic probe of the numerical control milling machine to measure the side generatrix and the upper generatrix of the power end positioning mandrel respectively, and set the origin of the four-axis coordinate system in the Y-axis direction and the Z-axis direction.

[0063] 2. From the installation and precision debugging of the end:

[0064] 21. Move the main shaft of the numerical control milling machine, drive the dial gauge needle to the end face of the driven rotary table, and press the dial gauge to the 0 scale position. Move the main shaft of the numerical control milling machine along the Y-axis direction and the Z-axis direction respectively, measure the horizontal direction deviation of the end face of the driven rotary table and the vertical direction deviation of the Z-axis. According to the deviation value, use shims to pad under the driven end support mechanism 6 base, fine-tune the position and angle of the driven end support mechanism 6 base until the horizontal direction of the end face of the driven end support mechanism 6 rotary table coincides with the Y-axis and the vertical direction coincides with the Z-axis. During the movement and measurement of the dial gauge, the reading does not jump again. Stop adjusting the position of the driven end support mechanism 6 base and bolt it.

[0065] 22. The driven end positioning mandrel is installed on the center hole of the driven disc, and is connected by loose fit.

[0066] 23. Move the main shaft of the numerical control milling machine, and drive the needle of the dial gauge to the side generatrix of the driving end positioning mandrel, and press the dial gauge to the 0 scale position. Move the main shaft of the numerical control milling machine along the negative direction of the X axis, and drive the needle of the dial gauge to the side generatrix of the driven end positioning mandrel. Measure the coaxial deviation of the driving end positioning mandrel and the driven end positioning mandrel in the Y direction. According to the deviation value, use the hammer to knock the position of the driven end auxiliary support mechanism base along the Y axis direction until the measurement values of the dial gauge on the driving end positioning mandrel and the driven end positioning mandrel are consistent. During the moving measurement process of the dial gauge, the indication no longer jumps, and the adjustment of the position of the driven end auxiliary support mechanism base is stopped.

[0067] 24. Move the main shaft of the numerical control milling machine, and drive the needle of the dial gauge to the upper generatrix of the driving end positioning mandrel, and press the dial gauge to the 0 scale position. Move the main shaft of the numerical control milling machine along the negative direction of the X axis, and drive the needle of the dial gauge to the upper generatrix of the driven end positioning mandrel. Measure the coaxial deviation of the driving end positioning mandrel and the driven end positioning mandrel in the Z direction. According to the deviation value, use the hammer to knock the position of the driven end positioning mandrel along the Z axis direction until the measurement values of the dial gauge on the driving end positioning mandrel and the driven end positioning mandrel are consistent. During the moving measurement process of the dial gauge, the indication no longer jumps, and the adjustment of the position of the driven end positioning mandrel is stopped, and the driven end support mechanism base is fixed using bolts.

[0068] 3. Four-axis rotary table installation and precision adjustment:

[0069] 31. Install the driving end L-shaped supporting plate 7 on the driving rotary disc 3, and position it through the driving end positioning mandrel. Fix the driving end L-shaped supporting plate 7 on the driving rotary disc 3 using bolts.

[0070] 32. Install the driven end L-shaped supporting plate 7 on the driven rotary disc, and position it through the driven end positioning mandrel. Fix the driven end L-shaped supporting plate 7 on the driven rotary disc using bolts.

[0071] 33. Move the main shaft of the numerical control milling machine, and drive the needle of the dial gauge to the upper surface of the driven end L-shaped supporting plate 7, and press the dial gauge to the 0 scale position. Move the main shaft of the numerical control milling machine along the Y axis direction, and measure the horizontal angle deviation of the driven end L-shaped supporting plate 7. According to the measurement value, manually adjust the angle of the driven rotary disc so that the upper surface of the driven end L-shaped supporting plate 7 coincides with the Y axis. During the moving measurement process of the dial gauge, the indication no longer jumps, and the adjustment of the angle position of the driven end L-shaped supporting plate 7 is stopped.

[0072] 34. Move the main shaft of the numerical control milling machine to the upper surface of the power end L-shaped supporting plate 2, and press the needle of the dial gauge to the 0 scale position. Move the main shaft of the numerical control milling machine along the Y-axis direction, measure the horizontal angle deviation of the power end L-shaped supporting plate 2, and according to the measured value, control the numerical control milling machine to rotate the four-axis, adjust the angle of the power rotary disc 3, so that the upper surface of the power end L-shaped supporting plate 2 coincides with the Y-axis. During the movement and measurement of the dial gauge, the reading does not jump again, and the adjustment of the angle position of the power end L-shaped supporting plate 2 is stopped.

[0073] 35. Move the main shaft along the X-axis direction again, so that the needle of the dial gauge moves to the driven end L-shaped supporting plate 7, measure the height difference between the upper surface of the power end L-shaped supporting plate 2 and the upper surface of the driven end L-shaped supporting plate 7, and according to the measured value, use the gasket to pad under the base of the driven end supporting mechanism 6, adjust the height position of the driven end L-shaped supporting plate until the upper surface of the power end L-shaped supporting plate 2 and the upper surface of the driven end L-shaped supporting plate 7 are adjusted to be consistent in height. During the movement and measurement of the dial gauge, the reading does not jump again, and the adjustment of the height of the driven end L-shaped supporting plate 7 is stopped, and the base of the driven end supporting mechanism 6 is fixed by using bolts.

[0074] 36. The four-axis rotary table 1 is placed on the power end L-shaped supporting plate 2 and the driven end L-shaped supporting plate 7.

[0075] 37. Move the main shaft of the numerical control milling machine, drive the needle of the dial gauge to the plane of the four-axis rotary table 1, move the position of the main shaft of the numerical control milling machine along the X-axis direction, and measure the coincidence precision of the workbench surface of the four-axis rotary table and the X-axis. If there is a deviation in the horizontal direction of the workbench along the X-axis, according to the measured value, use the feeler gauge to pad under the L-shaped supporting plate until the four-axis rotary table is leveled and fixed by using bolts.

[0076] The present application combines the structure and functional characteristics of four-axis numerical control machine tools, designs, manufactures and builds a four-axis rotary table, and adjusts the four-axis precision. The test method can improve the four-axis rotary table precision adjustment efficiency and the four-axis rotary table operation precision, thereby improving the part machining precision. The four-axis rotary table device can realize clamping and machining of non-rotating body parts, improve the equipment machining range; use CAD, CAM automatic programming software to calculate, control the workbench angle through numerical control instructions, realize four-axis linkage machining, accurately control the workbench angle control precision and product part surface precision; the clamping of the four-axis rotary table device for non-rotating body parts can realize one-time positioning clamping to complete numerical control machining of each spatial angle surface, without assembling fixtures for each surface structure. Improve the machining quality and part installation positioning efficiency, and reduce the product manufacturing cost.

[0077] Note that the above merely describes preferred embodiments of the present application and the principles of the technology applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, modifications and substitutions can be made to the present application without departing from the scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the claims.

Claims

1. A four-axis rotary table building and high-precision debugging method, characterized in that, The method comprises the following steps: A, power end installation and precision debugging A1, along the Y axis direction and the Z axis direction to level four-axis system power disc end surface; A2, measure and adjust the power rotary table core shaft matching surface runout; A3, the power end positioning core shaft is installed on the four-axis system power rotary table (3) center hole; A4, measure and adjust the power rotary table core shaft outer circle surface runout; A5, set the four-axis rotation Y, Z processing coordinate system origin; B, from the end installation and precision debugging B1, along the Y axis direction and the Z axis direction to level the driven end support mechanism rotary table end surface; B2, install the power rotary table (3) core shaft of the driven end support mechanism (6), and install the driven end positioning core shaft on the driven disc center hole; B3, measure the power rotary table core shaft and the driven rotary table core shaft on the generatrix and side generatrix deviation; Move the numerical control milling machine spindle, drive the dial of the dial gauge to the side generatrix of the power end positioning core shaft, and press the dial to the 0 scale position. Move the numerical control milling machine spindle position along the X axis negative direction, so that the dial of the dial gauge is on the side generatrix of the driven end positioning core shaft. Measure the Y direction coaxial deviation of the power end positioning core shaft and the driven end positioning core shaft. According to the deviation value, use the copper hammer to knock the driven end auxiliary support mechanism base along the Y axis direction position until the measurement value of the dial on the power end positioning core shaft and the measurement value on the driven end positioning core shaft are consistent. In the moving measurement process, the dial no longer jumps. Stop adjusting the position of the driven end auxiliary support mechanism base. B4, adjust the position of the driven end support mechanism (6) so that the two core shaft generatrix coincide; Move the numerical control milling machine spindle, drive the dial of the dial gauge to the upper generatrix of the power end positioning core shaft, and press the dial to the 0 scale position. Move the numerical control milling machine spindle position along the X axis negative direction, so that the dial of the dial gauge is on the upper generatrix of the driven end positioning core shaft. Measure the Z direction coaxial deviation of the power end positioning core shaft and the driven end positioning core shaft. According to the deviation value, use the copper hammer to knock the driven end positioning core shaft along the Z axis direction position until the measurement value of the dial on the power end positioning core shaft and the measurement value on the driven end positioning core shaft are consistent. In the moving measurement process, the dial no longer jumps. Stop adjusting the position of the driven end positioning core shaft, and fix the driven end support mechanism base using bolts. C, four-axis rotary table installation and precision debugging C1, install the power end L-shaped supporting plate (2) on the power rotary table (3); C2, install the driven end L-shaped supporting plate (7) on the driven rotary table; C3, measure and adjust the horizontal angle and height of the two end supporting plates; C4, place the four-axis rotary table (1) on the power end L-shaped supporting plate (2) and the driven end L-shaped supporting plate (7); C5, measure and adjust the levelness of the four-axis rotary table along the X and Y axes.

2. The four-axis rotary table building and high-precision debugging method according to claim 1, characterized in that, A1, specifically: install the dial gauge on the numerical control machine tool spindle. Move the numerical control milling machine spindle, drive the dial of the dial gauge to the end surface of the power rotary table (3), and press the dial to the 0 scale position. Move the numerical control milling machine spindle along the Y axis direction and the Z axis direction, respectively. Measure the Y axis deviation value of the horizontal direction of the power rotary table (3) end surface and the Z axis deviation value of the vertical direction.

3. The four-axis rotary table building and high-precision debugging method according to claim 2, characterized in that, Step A2, specifically: according to the deviation value, use the gasket to pad under the four-axis system base, fine-tune the four-axis system base position and placement angle, until the horizontal direction of the power rotary table end surface coincides with the Y axis, the vertical direction coincides with the Z axis, the dial gauge does not jump during the moving measurement process, stop adjusting the four-axis system base position, and bolted.

4. The four-axis rotary table building and high-precision debugging method according to claim 1, characterized in that, Step A4, specifically: move the dial gauge needle to the outer circular surface of the power end positioning mandrel, and press the gauge to the 0 scale position, make the numerical control milling machine four-axis rotate, drive the power rotary table (3) to rotate, measure the runout precision of the power end positioning mandrel outer circular surface, if the power end positioning mandrel does not coincide with the numerical control milling machine four-axis rotation axis, need to use the hammer to knock the power end positioning mandrel position, until the dial gauge does not jump during the power end positioning mandrel rotation process, stop knocking, at this time the power end positioning mandrel axis coincides with the numerical control milling machine four-axis rotation axis.

5. The four-axis rotary table building and high-precision debugging method according to claim 1, characterized in that, Step A5, specifically: use the numerical control milling machine electronic probe to measure the power end positioning mandrel side generatrix and upper generatrix respectively, taking the Y axis and Z axis positions of the power end positioning mandrel axis as the reference, set the four-axis coordinate system origin in Y axis direction and Z axis direction.

6. The four-axis rotary table building and high-precision debugging method according to claim 1, characterized in that, Step B1, specifically: move the numerical control milling machine spindle, drive the dial gauge needle to the driven rotary table end surface, and press the gauge to the 0 scale position, move the numerical control milling machine spindle along the Y axis direction and Z axis direction respectively, measure the horizontal direction deviation value of the driven rotary table end surface and the vertical direction deviation value; according to the deviation value, use the gasket to pad under the driven end supporting mechanism (6) base, fine-tune the driven end supporting mechanism (6) base position and placement angle, until the horizontal direction of the driven end supporting mechanism (6) rotary table end surface coincides with the Y axis, the vertical direction coincides with the Z axis, the dial gauge does not jump during the moving measurement process, stop adjusting the driven end supporting mechanism (6) base position, and bolted.

7. The four-axis rotary table building and high-precision debugging method according to claim 1, characterized in that, Step C3, comprising the following steps: C31, move the numerical control milling machine spindle, drive the dial gauge needle to the upper surface of the driven end L-shaped supporting plate (7), and press the gauge to the 0 scale position, move the numerical control milling machine spindle along the Y axis direction, measure the horizontal angle deviation of the driven end L-shaped supporting plate (7), according to the measured value, manually adjust the driven rotary table angle, make the upper surface of the driven end L-shaped supporting plate (7) coincide with the Y axis, the dial gauge does not jump during the moving measurement process, stop adjusting the angle position of the driven end L-shaped supporting plate (7); C32, move the numerical control milling machine spindle, drive the dial gauge needle to the upper surface of the power end L-shaped supporting plate (2), and press the gauge to the 0 scale position, move the numerical control milling machine spindle along the Y axis direction, measure the horizontal angle deviation of the power end L-shaped supporting plate (2), according to the measured value, control the numerical control milling machine to rotate the four-axis, adjust the power rotary table (3) angle, make the upper surface of the power end L-shaped supporting plate (2) coincide with the Y axis, the dial gauge does not jump during the moving measurement process, stop adjusting the angle position of the power end L-shaped supporting plate (2); C33, move the spindle position along the X-axis direction again, so that the dial indicator needle moves to the driven end L-shaped plate (7), measure the height difference between the upper surface of the driving end L-shaped plate (2) and the upper surface of the driven end L-shaped plate (7), according to the measured value, use the gasket to pad under the base of the driven end support mechanism (6), adjust the height position of the driven end L-shaped plate until the upper surface of the driving end L-shaped plate (2) and the upper surface of the driven end L-shaped plate (7) are adjusted to be consistent, and the dial indicator needle no longer jumps during the moving measurement process, stop adjusting the height of the driven end L-shaped plate (7), and use bolts to fix the base of the driven end support mechanism (6).

8. The four-axis rotary table building and high-precision debugging method according to claim 1, characterized in that, Step C5, specifically: move the spindle of the numerical control milling machine, and drive the dial indicator needle to the plane of the four-axis rotary table (1), move the numerical control milling machine spindle position along the X-axis direction, and measure the coincidence accuracy of the four-axis rotary table workbench and the X-axis. If there is a deviation in the workbench level along the X-axis direction, according to the measured value, use the feeler gauge to pad under the driving end L-shaped plate (2) and the driven end L-shaped plate (7) until the four-axis rotary table is leveled, and use bolts to fix it.

Images