Servo turntable and vertical machining center adjusting device

Abstract

The utility model provides an adjusting device for a servo turntable and a vertical machining center, which comprises an adjusting base connected with a clamp bottom plate of the vertical machining center; the moving assembly is connected with the adjusting base, the moving assembly is movably arranged relative to the adjusting base, and a bearing seat is arranged on the moving assembly; the lead screw assembly comprises a lead screw nut and a lead screw rotating shaft, the lead screw nut is connected with the adjusting base, and the lead screw nut is meshed with the lead screw rotating shaft; a through hole is formed in the adjusting base, the first end of the lead screw rotating shaft is located in the bearing seat, the second end of the lead screw rotating shaft is meshed with the lead screw rotating shaft and penetrates through the through hole to abut against a cushion block on the clamp bottom plate, an operation part is arranged on the lead screw rotating shaft, and the lead screw rotating shaft can rotate around the axis of the lead screw rotating shaft by operating the operation part. And the thrust applied to the cushion block by the second end of the lead screw rotating shaft is adjusted. The problem that quantitative adjustment cannot be achieved in the assembling process of the servo rotary table and the vertical machining center in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of servo turntable and vertical machining center assembly, in particular to a servo turntable and vertical machining center adjustment device. Background Art

[0002] In the processing of axle gear housings for medium and heavy trucks, vertical machining centers using servo turntables are widely used in production. At present, there are some defects in the process of converting hydraulic turntables into servo turntables in vertical machining centers:

[0003] The coaxiality adjustment process of the servo rotary table and the tailstock is inefficient. At present, a micrometer with a measuring rod is generally used to detect the coaxiality deviation, and then a copper rod is used to knock, and repeated adjustments are made to finally achieve coaxiality. This method cannot achieve quantitative adjustment during the adjustment process.

[0004] Currently, no effective solution has been proposed for the problems in the prior art. Utility Model Content

[0005] The main purpose of the utility model is to provide a servo turntable and a vertical machining center adjustment device to solve the problem that the servo turntable and the vertical machining center assembly process in the prior art cannot be adjusted quantitatively.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a servo turntable and vertical machining center adjustment device is provided, including: an adjustment base, the adjustment base is connected to the fixture base plate of the vertical machining center; a moving assembly, the moving assembly is connected to the adjustment base, the moving assembly is movably arranged relative to the adjustment base, and a bearing seat is arranged on the moving assembly; a screw assembly, the screw assembly includes a screw nut and a screw shaft, the screw nut is connected to the adjustment base, and the screw nut and the screw shaft are meshed; wherein, a through hole is arranged on the adjustment base, the first end of the screw shaft is located in the bearing seat, the second end of the screw shaft is meshed with the screw shaft and passes through the through hole to abut against a pad on the fixture base, and an operating part is arranged on the screw shaft, and the operating part can be operated to rotate the screw shaft around its own axis to adjust the thrust applied to the pad by the second end of the screw shaft.

[0007] Furthermore, the adjustment base includes: a first plate section, the first plate section is connected to the fixture bottom plate, the plane where the first plate section is located is parallel to the fixture bottom plate, and the first plate section is connected to the moving component; a second plate section, one end of the second plate section is connected to the first plate section, and the other end of the second plate section extends in a direction away from the first plate section, the second plate section is arranged with a preset angle between the second plate section and a through hole is arranged on the second plate section.

[0008] Furthermore, the preset angle is a right angle.

[0009] Furthermore, a guide rail is arranged on the first plate section, and the moving component comprises: a slider mounted on the guide rail; a transition plate connected to the slider, and a bearing seat arranged on the transition plate.

[0010] Furthermore, the screw assembly also includes: a fixed sleeve, which is located on a side of the screw nut away from the second plate section, and is connected to the screw nut; a floating sleeve, which is located on a side of the fixed sleeve away from the second plate section, and is connected to the screw nut, and the floating sleeve and the fixed sleeve are clearance-fitted, the floating sleeve is movably arranged relative to the fixed sleeve, and one end of the floating sleeve away from the fixed sleeve is connected to the screw shaft, wherein when the screw shaft is screwed in, the floating sleeve moves relative to the fixed sleeve.

[0011] Furthermore, scale lines are arranged on both the fixed sleeve and the floating sleeve.

[0012] Furthermore, the lead screw shaft is provided with an annular structure protruding radially from the outer circumferential surface of the lead screw shaft at a position close to the first end, the annular structure forms an operating portion, and at least one driving groove is formed on the operating portion.

[0013] Furthermore, a spring is sleeved on the outer side of the lead screw shaft, one end of the spring abuts against the end surface of the fixed sleeve and one of the second plate segments, and the other end of the spring abuts against the side end surface of the annular structure.

[0014] Furthermore, the pad includes a servo pad and a tailstock pad, which are relatively arranged on the fixture base plate. The servo turntable and the vertical machining center adjustment device are two groups, one group of servo turntable, the vertical machining center adjustment device and the servo pad are correspondingly arranged, and the other group of servo turntable, the vertical machining center adjustment device and the tailstock pad are correspondingly arranged.

[0015] Furthermore, each group of servo turntable and vertical machining center adjustment devices includes two servo turntable and vertical machining center adjustment devices, and the two servo turntable and vertical machining center adjustment devices are respectively provided with corresponding pads along one side of the length direction of the fixture base plate and corresponding pads along one side of the width direction of the fixture base plate.

[0016] By applying the technical solution of the utility model, the thrust applied to the cushion block by the second end of the screw shaft is adjusted by the screw assembly, so that the cushion block can be accurately and quantitatively adjusted during the assembly process of the servo turntable and the vertical machining center. Compared with the positioning assembly by knocking with a copper hammer, the adjustment device can be used for positioning and precision detection, and the bearing seat is moved with the screw shaft by the moving assembly to achieve the stable state of the screw shaft. The application solves the problem that the assembly process of the servo turntable and the vertical machining center in the prior art cannot be quantitatively adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of a first embodiment of a servo turntable and a vertical machining center adjustment device according to the utility model is shown;

[0019] Figure 2 A schematic structural diagram of a second embodiment of a servo turntable and a vertical machining center adjustment device according to the utility model is shown;

[0020] Figure 3 A schematic diagram of parallelism detection between a fixture base plate and a machine tool guide rail according to an embodiment of the servo turntable and vertical machining center adjustment device of the utility model is shown;

[0021] Figure 4 A schematic diagram of detecting parallelism between the tailstock and the machine tool guide rail according to an embodiment of the servo turntable and vertical machining center adjustment device of the utility model is shown;

[0022] Figure 5 A schematic diagram of coaxiality detection and adjustment of a servo turntable and a tailstock according to an embodiment of the servo turntable and vertical machining center adjustment device of the utility model is shown;

[0023] Figure 6 A schematic diagram of reverse clamping reaming processing according to an embodiment of the servo turntable and vertical machining center adjustment device of the utility model is shown;

[0024] Figure 7 A schematic diagram of secondary detection of parallelism between a fixture base plate and a machine tool guide rail according to an embodiment of the servo turntable and vertical machining center adjustment device of the utility model is shown;

[0025] Figure 8 A schematic diagram of 0° X-direction detection of a horizontal plate in parallelism detection between a horizontal plate and a machine tool guide rail according to an embodiment of the servo turntable and vertical machining center adjustment device of the utility model is shown;

[0026] Fig. 9 A schematic diagram of 180° X-direction detection of a horizontal plate in detection of parallelism between a horizontal plate and a machine tool guide rail according to an embodiment of the servo turntable and vertical machining center adjustment device of the utility model is shown;

[0027] Fig.10 A schematic diagram of 0° Y-direction detection of a horizontal plate in parallelism detection between a horizontal plate and a machine tool guide rail according to an embodiment of the servo turntable and vertical machining center adjustment device of the utility model is shown;

[0028] Fig.11 A schematic diagram of 180° Y-direction detection of a horizontal plate in detection of parallelism between a horizontal plate and a machine tool guide rail in an embodiment of a servo turntable and vertical machining center adjustment device according to the utility model is shown.

[0029] The above drawings include the following reference numerals:

[0030] 1. Vertical machining center; 10. Tail stock; 11. L plate; 14. Horizontal plate; 16. Micrometer; 17. Adjustment device;

[0031] 2. Fixture bottom plate; 20. Moving assembly; 21. Adjustment base; 211. First plate section; 212. Second plate section; 22. Lead screw nut; 23. Fixed bushing; 24. Floating bushing; 25. Lead screw rotating shaft; 251. Operating part; 26. Spring; 27. Bearing seat; 28. Transition plate; 29. ​​Slider;

[0032] 3. Workbench; 30. Guide rail; 31. First long measuring rod; 32. Second long measuring rod;

[0033] 4. Servo pad; 40. Lead screw assembly; 41. Through hole;

[0034] 5. Tailstock pad;

[0035] 8. Servo turntable. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0040] Vertical machining center (VMC) is a high-efficiency, high-precision CNC machine tool, mainly used for workpiece processing. Its spindle is vertical, perpendicular to the worktable plane, so it is called a vertical machining center. The following is a detailed introduction to the vertical machining center:

[0041] The structural features of the vertical machining center include the following:

[0042] Spindle: The spindle is installed vertically and can perform various processing operations such as drilling, milling, boring, and tapping.

[0043] Workbench: Usually rectangular and can move in three axes (X, Y, Z).

[0044] Tool magazine and automatic tool changing device: Equipped with tool magazine and automatic tool changing device, it can realize automatic replacement of various tools and improve processing efficiency.

[0045] CNC system: The advanced CNC system can realize complex surface and multi-axis linkage processing.

[0046] The advantages of vertical machining centers include the following:

[0047] High processing precision: Due to its good structural rigidity and high processing precision, it is suitable for precision parts processing.

[0048] Easy to operate: The vertical structure is easy to observe and operate, and adjustment and maintenance are relatively simple.

[0049] Strong flexibility: It can process flat surfaces, curved surfaces and complex shapes, and is suitable for the production of multiple varieties and small batches.

[0050] Efficient: High degree of automation reduces manual intervention and improves production efficiency.

[0051] The working principle of the vertical machining center is: the vertical machining center drives the workbench and tool to move precisely according to the preset program and parameters through the control of the CNC system to achieve the processing of the workpiece. The basic process is as follows:

[0052] Programming: Write CNC machining programs according to workpiece drawings and processing requirements;

[0053] Clamping the workpiece: Fix the workpiece on the workbench and select the appropriate tool to load into the tool magazine;

[0054] Execute machining: start the machining program, the CNC system controls the movement of the spindle and worktable to complete various machining operations;

[0055] Inspection and adjustment: After processing is completed, the workpiece is measured and inspected, and adjusted or reprocessed as needed.

[0056] Combination Figures 1 to 11 As shown, according to a specific embodiment of the present application, a servo turntable and vertical machining center adjustment device is provided, including: an adjustment base 21, the adjustment base 21 is connected to the fixture base plate 2 of the vertical machining center; a moving assembly 20, the moving assembly 20 is connected to the adjustment base 21, the moving assembly 20 is movably arranged relative to the adjustment base 21, and a bearing seat 27 is arranged on the moving assembly 20; a screw assembly 40, the screw assembly 40 includes a screw nut 22 and a screw shaft 25, the screw nut 22 is connected to the adjustment base 21, and the bearing seat 27 is arranged on the moving assembly 20; The adjusting base 21 is connected, and the screw nut 22 and the screw shaft 25 are meshed; wherein, a through hole 41 is provided on the adjusting base 21, the first end of the screw shaft 25 is located in the bearing seat 27, the second end of the screw shaft 25 is meshed with the screw shaft 25 and passes through the through hole 41 to abut against the pad on the fixture base plate 2, and an operating part 251 is provided on the screw shaft 25. Operating the operating part 251 can make the screw shaft 25 rotate around its own axis to adjust the thrust applied by the second end of the screw shaft 25 to the pad.

[0057] By applying the technical solution of the utility model, the thrust applied to the cushion block by the second end of the screw shaft 25 is adjusted by the screw assembly 40, so that the cushion block can be accurately and quantitatively adjusted during the assembly process of the servo turntable and the vertical machining center, and the bearing seat 27 is moved with the screw shaft 25 by the moving assembly 20, so that the stable state of the screw shaft 25 is maintained. The application solves the problem that the assembly process of the servo turntable and the vertical machining center in the prior art cannot be quantitatively adjusted.

[0058] Combination Figure 1 , Figures 2 to 5 As shown, the figure also shows a vertical machining center 1, a tailstock 10, an L-plate 11, a horizontal plate 14, a micrometer 16, an adjustment device 17, a workbench 3, a guide rail 30, a first length measuring rod 31, a second length measuring rod 32, and a servo turntable 8.

[0059] Further, the adjustment base 21 includes: a first plate segment 211, the first plate segment 211 is connected to the fixture bottom plate 2, the plane where the first plate segment 211 is located is parallel to the fixture bottom plate 2, and the first plate segment 211 is connected to the moving component 20; a second plate segment 212, one end of the second plate segment 212 is connected to the first plate segment 211, the other end of the second plate segment 212 extends in a direction away from the first plate segment 211, the second plate segment 212 is arranged with a preset angle with the first plate segment 211, and a through hole 41 is arranged on the second plate segment 212. Such an arrangement can make full use of the space, so that the base can cover a larger area or support a longer workpiece. In this way, the space utilization rate and working range of the entire processing system can be improved, and the precise adjustment and positioning of the base can be achieved, thereby improving the repeatability and accuracy of the processing.

[0060] Furthermore, the preset angle is a right angle.

[0061] Furthermore, a guide rail 30 is provided on the first plate section 211, and the moving assembly 20 includes: a slider 29, which is mounted on the guide rail 30; a transition plate 28, which is connected to the slider 29, and a bearing seat 27 is provided on the transition plate 28. The following movement of the bearing seat 27 is achieved through the guide rail 30 and the moving assembly 20, so that the lead screw shaft 25 is still in a stable state of double-end support after the movement.

[0062] Furthermore, the screw assembly 40 also includes: a fixed sleeve 23, the fixed sleeve 23 is located on the side of the screw nut 22 away from the second plate section 212, and the fixed sleeve 23 is connected to the screw nut 22; a floating sleeve 24, the floating sleeve 24 is located on the side of the fixed sleeve 23 away from the second plate section 212, the fixed sleeve 23 is connected to the screw nut 22, the floating sleeve 24 and the fixed sleeve 23 are clearance-fitted, the floating sleeve 24 is movably arranged relative to the fixed sleeve 23, and one end of the floating sleeve 24 away from the fixed sleeve 23 is connected to the screw shaft 25, wherein, when the screw shaft 25 is screwed in, the floating sleeve 24 moves relative to the fixed sleeve 23.

[0063] Through the cooperation of the floating sleeve 24 and the fixed sleeve 23, a quantitative screw-in function similar to that of a micrometer is realized. The lead screw nut 22 is screwed in at different angles, and its screw-in amount can be fed back to the operator through the scales on the floating sleeve 24 and the fixed sleeve 23, thereby realizing quantitative screw-in. Compared with knocking with a copper rod, it has the advantage of quantitative and precise control, and the guide rails of the adjustment device can be used to position and install other components.

[0064] Furthermore, scale lines are provided on both the fixed sleeve 23 and the floating sleeve 24 .

[0065] Furthermore, the screw shaft 25 is provided with an annular structure protruding radially from the outer circumference of the screw shaft 25 at a position close to the first end, and the annular structure forms an operating portion 251 , and at least one driving groove is formed on the operating portion 251 .

[0066] The lead screw shaft 25 can be driven to rotate by inserting a specially made drive rod into the drive groove, and automatic rotation can also be achieved by reasonably designing an electric actuator structure.

[0067] Furthermore, a spring 26 is sleeved on the outer side of the lead screw shaft 25, one end of the spring 26 abuts against the end surface of the fixed sleeve 23 and one of the second plate segments 212, and the other end of the spring 26 abuts against the side end surface of the annular structure.

[0068] The adjusting device 17 eliminates the possible axial clearance between the screw shaft 25 and the screw nut 22 through the spring 26 to ensure that the rotation process does not lose step. The adjusting device 17 rotates the screw shaft 25 to make its end face contact the pad to fine-tune the position, and quantitatively observes the axial movement of the screw through the changes in the scales on the fixed sleeve 23 and the floating sleeve 24.

[0069] like Figure 5As shown, the pads include a servo pad 4 and a tailstock pad 5. The servo pad 4 and the tailstock pad 5 are relatively arranged on the fixture base plate 2. The servo turntable and the vertical machining center adjustment device are two groups. One group of the servo turntable and the vertical machining center adjustment device are arranged correspondingly to the servo pad 4, and the other group of the servo turntable and the vertical machining center adjustment device are arranged correspondingly to the tailstock pad 5.

[0070] like Figure 5 As shown, each group of servo turntable and vertical machining center adjustment device includes two servo turntable and vertical machining center adjustment devices, and the two servo turntable and vertical machining center adjustment devices are respectively provided with corresponding pads along one side of the length direction of the fixture base plate 2 and corresponding pads along one side of the width direction of the fixture base plate 2.

[0071] In an optional embodiment, the quick adjustment device includes a vertical machining center 1, a fixture base plate 2 is arranged on a workbench 3 of the vertical machining center, a servo pad 4 and a tailstock pad 5 are respectively arranged on the plane of the fixture base plate, and are connected and positioned on the fixture base plate by locating pins and then fastened with bolts. The servo turntable 8 is placed on the servo pad 4, and is fastened with bolts after being circumferentially positioned by keys. The tailstock 10 is placed on the tailstock pad 5, and is fastened with bolts after being circumferentially positioned by keys. The stopper of the L plate 11 is arranged in the center hole of the servo turntable 8 and the tailstock 10, and the T-block is placed in the groove of the servo turntable 8 and the tailstock 10 and fastened with bolts. The horizontal plate is arranged on the plane of the two L plates 11 and fastened with bolts. A micrometer 16 is arranged at the end face of the spindle to detect the assembly accuracy of the machine tool and the servo turntable group.

[0072] The coaxiality adjustment of the servo turntable 8 and the tailstock 10 includes a first long measuring rod 31 and a second long measuring rod 32 respectively arranged in the center holes of the servo turntable 8 and the tailstock 10, a micrometer 16 is arranged at the end face of the spindle of the vertical machining center, and an adjustment device 17 is arranged on the fixture bottom plate. The adjustment device 17 includes an adjustment base 21, which is arranged on the fixture bottom plate 2 and fixed by bolt connection. The screw nut 22 cooperates with the shaft hole of the adjustment base 21 and is fastened with four bolts. The fixed sleeve 23 is positioned and matched with the end face of the screw nut 22, and is fastened with two elastic pins and two bolts. The floating sleeve 24 and the screw shaft 25 are positioned by the stopper and fastened by four bolts. The spring 26 is sleeved on the screw shaft 25 and arranged inside the fixed sleeve 23 and the floating sleeve 24. The two end faces of the spring 26 contact the vertical face of the adjustment base and the inner end face of the screw respectively. The screw shaft 25 is screwed into the screw nut 22, and the floating sleeve 24 and the fixed sleeve 23 are clearance-matched. The tail shaft of the screw shaft 25 is installed in the hole of the bearing seat 27. The bearing seat 27 is fastened to the transition plate 28 with two bolts. The transition plate 28 is fixed to the slider 29 by 8 bolts. The slider 29 moves freely on the guide rail 30. The guide rail 30 is fixed to the adjustment base 21 with bolts.

[0073] There is no detailed operation process method for the adjustment process of the hydraulic turntable to the servo turntable and the vertical machining center, and the adjustment time is long; the inspection standards for the hydraulic turntable to the servo turntable and the vertical machining center are incomplete, and there is no set of fully applicable accuracy inspection standards. In order to solve the above problems, a servo turntable and vertical machining center adjustment method is also provided.

[0074] The adjustment method of the servo turntable and the vertical machining center includes the following steps:

[0075] 1. Take the XZ surface of the X-axis guide rail as the reference plane, check and adjust the front plane (XZ surface) of the fixture base plate to be parallel to the X-axis guide rail (XZ surface) within 0.015 / 1200mm, including:

[0076] After the spindle is positioned, a micrometer is set on the spindle end face, the needle is placed on the front side (XZ surface) of the fixture base plate, the X-axis is moved on the full stroke of the side plane of the fixture base plate, and the dial reading is adjusted to within 0.015mm by tapping with a copper rod. Then, the six bolts are tightened in sequence for several times, and the X-axis is moved on the full stroke of the fixture base plate during the tightening process. If the dial reading exceeds 0.015mm, use a copper rod to tap and adjust it to within 0.015mm, until the fixture base plate is locked with a sleeve and the X-axis is moved on the full stroke of the fixture base plate, and the dial reading changes within 0.015mm.

[0077] 2. Grind the turntable pad and the old tailstock pad to within 0.005 mm, which includes grinding the upper surface of the tailstock pad with the lower surface of the old tailstock pad as the reference plane to ensure that the two planes are parallel, and grinding the upper and lower surfaces of the turntable pad with the lower surface of the old tailstock pad as the reference plane to ensure that the two pads are at the same height.

[0078] 3. Take the XY plane of the X-axis guide as the reference plane, and use a dial to detect whether the generatrix on the tailstock measuring rod is parallel to the X-axis guide within 0.03 / 300mm. This includes installing the matching measuring rod in the center hole of the tailstock, positioning the spindle, setting a micrometer on the end face of the spindle, placing the needle on the highest point of the generatrix on the measuring rod, and moving the X-axis from the near end of the measuring rod to 300 long, and the dial indication changes within 0.03mm.

[0079] 4. Take the XZ surface of the X-axis guide as the reference surface, and use a dial to detect and adjust the inner generatrix of the tailstock measuring rod to be parallel to the X-axis guide within 0.01 / 300mm. This includes: after the spindle is positioned, set a micrometer on the spindle end face, put the needle on the highest point of the inner generatrix of the measuring rod, and repeatedly move the X-axis from the near end of the measuring rod to 300 long. The dial reading changes within 0.01mm. If the dial reading changes beyond 0.01mm, Figure 5Place two adjustment devices on the fixture base plate and on both sides of the tailstock block in the Y direction. Use a wrench to rotate the screw shaft until it contacts the tailstock turntable block. Observe the floating sleeve while rotating the screw shaft. The screw shaft feeds 0.005mm for each rotation of the floating sleeve. First feed with the minimum feed amount and observe the change in the dial indication. Calculate the remaining feed amount in proportion to the change. Rotate the screw shaft to complete the adjustment. Quickly fine-tune the tailstock position through quantitative adjustment to make the dial indication change within 0.01mm.

[0080] 5. Take the XZ surface of the X-axis guide as the reference surface, use a meter to detect and adjust the parallelism difference between the servo turntable measuring rod side busbar and the tailstock measuring rod side busbar within 0.02 / 1200mm, including:

[0081] Place the needle on the highest point of the measuring rod side busbar, and repeatedly move the X-axis from the near end of the tailstock measuring rod to the near end of the servo turntable measuring rod. The same adjustment method as above is as follows: Figure 5 When the needle touches the servo turntable measuring rod, the position of the servo turntable pad is quantitatively fine-tuned by rotating the screw shaft of the adjustment device set on the fixture base plate until the dial indication of the micrometer changes within 0.02mm. The six bolts connecting the servo turntable pad and the fixture base plate are tightened in sequence for multiple times. During the tightening process, the X-axis is repeatedly moved from the near end of the tailstock measuring rod to the near end of the servo turntable measuring rod to ensure that the dial indication changes within 0.02mm at all times. The adjustment device can quantitatively and quickly adjust the coaxiality of the turntable and the tailstock.

[0082] 6. Use the machine tool to drill the pin holes between the fixture base plate and the servo turntable pad. This includes removing the servo turntable and the tailstock, placing the fixture base plate and the two pads assembly upside down on the workbench, and using extended screws and T-blocks to tighten the fixture base plate around. The machine tool drills the pin holes M, N, O, and P on the same straight line in the Y direction, and installs the pins.

[0083] 7. After drilling the pin hole, place the fixture base plate upright, repeat the third step to adjust and tighten the fixture base plate, and use the probe to measure the axial distance between the turntable and the tailstock. This includes: after the probe contacts the A point of the tailstock turntable, move along the X-axis guide rail for a distance of L1, adjust the servo turntable to the probe position, and tighten the bolts between the servo turntable and the servo turntable pad.

[0084] 8. Using the XY plane of the X and Y axis guide rails as the reference plane, use a meter to detect and adjust the parallelism of the front and back surfaces of the horizontal plate, including installing the L plate and the horizontal plate.

[0085] Lock the turntable at zero degree, position the spindle, install and fix the dial base on the spindle, put the dial needle on the horizontal plate, move the X-axis on the full stroke of the horizontal plate, and check that the dial indication changes within 0.05mm.

[0086] Move the Y-axis over the full stroke of the horizontal plate and check that the dial indication changes within 0.05mm.

[0087] Lock the turntable at 180 degrees, position the spindle, install and fix the dial base on the spindle, put the dial needle on the horizontal plate, move the X-axis on the full stroke of the horizontal plate, and check that the dial indication changes within 0.05mm.

[0088] Move the Y-axis over the full stroke of the horizontal plate and check that the dial indication changes within 0.05mm.

[0089] 9. Check and adjust the turntable clearance, which includes locking the turntable, positioning the spindle, setting a micrometer at the spindle end face, placing the needle on a horizontal plate, and using a crowbar to pry the dial along the direction of rotation of the turntable until the reading changes within 0.04mm.

[0090] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0091] A method and device for detecting and quickly adjusting a turntable and a vertical machining center are provided. The device and method have the following beneficial effects: the device and adjustment method can make the adjustment more precise and efficient, and can effectively improve the interchangeability of the overall type change of the servo turntable of the vertical CNC center.

[0092] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0093] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.

[0094] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0095] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A servo turntable and vertical machining center adjustment device, characterized in that: include: An adjustment base (21), wherein the adjustment base (21) is connected to a fixture base plate (2) of a vertical machining center; A moving component (20), the moving component (20) being connected to the adjusting base (21), the moving component (20) being movably arranged relative to the adjusting base (21), and a bearing seat (27) being arranged on the moving component (20); A screw assembly (40), the screw assembly (40) comprising a screw nut (22) and a screw shaft (25), the screw nut (22) being connected to the adjustment base (21), the screw nut (22) and the screw shaft (25) being meshed; Wherein, a through hole (41) is provided on the adjustment base (21), the first end of the screw shaft (25) is located in the bearing seat (27), the second end of the screw shaft (25) is meshed with the screw shaft (25) and passes through the through hole (41) to abut against the cushion block on the clamp base plate (2), and an operating part (251) is provided on the screw shaft (25), and operating the operating part (251) can make the screw shaft (25) rotate around its own axis to adjust the thrust applied by the second end of the screw shaft (25) to the cushion block.

2. The servo turntable and vertical machining center adjustment device according to claim 1, characterized in that: The adjustment base (21) comprises: A first plate segment (211), the first plate segment (211) being connected to the fixture bottom plate (2), the plane where the first plate segment (211) is located being parallel to the fixture bottom plate (2), and the first plate segment (211) being connected to the moving component (20); A second plate segment (212), one end of the second plate segment (212) being connected to the first plate segment (211), the other end of the second plate segment (212) extending in a direction away from the first plate segment (211), the second plate segment (212) and the first plate segment (211) being arranged with a preset angle therebetween, and the through hole (41) being arranged on the second plate segment (212).

3. The servo turntable and vertical machining center adjustment device according to claim 2, characterized in that: The preset angle is a right angle.

4. The servo turntable and vertical machining center adjustment device according to claim 3, characterized in that: The first plate section (211) is provided with a guide rail (30), and the moving assembly (20) comprises: A slider (29), wherein the slider (29) is mounted on the guide rail (30); A transition plate (28), the transition plate (28) is connected to the slider (29), and the bearing seat (27) is arranged on the transition plate (28).

5. The servo turntable and vertical machining center adjustment device according to claim 2, characterized in that: The lead screw assembly (40) further comprises: a fixed sleeve (23), the fixed sleeve (23) being located on a side of the lead screw nut (22) away from the second plate section (212), the fixed sleeve (23) being connected to the lead screw nut (22); A floating sleeve (24), wherein the floating sleeve (24) is located on a side of the fixed sleeve (23) away from the second plate section (212), the fixed sleeve (23) is connected to the lead screw nut (22), the floating sleeve (24) and the fixed sleeve (23) are clearance-fitted, the floating sleeve (24) is movably arranged relative to the fixed sleeve (23), and one end of the floating sleeve (24) away from the fixed sleeve (23) is connected to the lead screw shaft (25), wherein when the lead screw shaft (25) is screwed in, the floating sleeve (24) moves relative to the fixed sleeve (23).

6. The servo turntable and vertical machining center adjustment device according to claim 5, characterized in that: The fixed shaft sleeve (23) and the floating shaft sleeve (24) are both provided with scale lines.

7. The servo turntable and vertical machining center adjustment device according to claim 6, characterized in that: The screw shaft (25) is provided with an annular structure protruding radially from the outer peripheral surface of the screw shaft (25) at a position close to the first end, and the annular structure forms the operating portion (251), and at least one driving groove is formed on the operating portion (251).

8. The servo turntable and vertical machining center adjustment device according to claim 7, characterized in that: A spring (26) is sleeved on the outer side of the screw shaft (25), one end of the spring (26) abuts against the end surface of the fixed sleeve (23) and one of the second plate segments (212), and the other end of the spring (26) abuts against the side end surface of the annular structure.

9. The servo turntable and vertical machining center adjustment device according to claim 1, characterized in that: The pads include a servo pad (4) and a tailstock pad (5), and the servo pad (4) and the tailstock pad (5) are relatively arranged on the fixture base plate (2). The servo turntable and the vertical machining center adjustment device are divided into two groups, one group of the servo turntable and the vertical machining center adjustment device is arranged correspondingly to the servo pad (4), and the other group of the servo turntable and the vertical machining center adjustment device is arranged correspondingly to the tailstock pad (5).

10. The servo turntable and vertical machining center adjustment device according to claim 9, characterized in that: Each set of servo turntable and vertical machining center adjustment devices includes two servo turntable and vertical machining center adjustment devices, and the two servo turntable and vertical machining center adjustment devices are respectively provided with corresponding pads along one side of the length direction of the clamp base plate (2) and corresponding pads along one side of the width direction of the clamp base plate (2).

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