A / C swing head geometric accuracy detection device

Abstract

The utility model discloses an A / C swing head geometric accuracy detection device, and belongs to the technical field of A / C swing head geometric accuracy detection. An A / C swing head geometric accuracy detection device comprises a detection platform and a swing head assembly support, the swing head assembly support is provided with a bottom plate installed and connected to the detection platform and an installation vertical plate fixedly arranged on the bottom plate, and the installation vertical plate is provided with a detachable assembly adapter plate. The assembly adapter plate is provided with a mounting hole for assembling a to-be-detected swing head, the bottom plate is provided with adjusting assemblies capable of performing local top height fine adjustment on the swing head assembly support, and the adjusting assemblies are symmetrically distributed on the two sides of the mounting hole. The detection device can efficiently and accurately detect the geometric accuracy of the swing head.

Description

Technical Field

[0001] This utility model relates to the field of A / C oscillating head geometric accuracy testing technology, and in particular to an A / C oscillating head geometric accuracy testing device. Background Technology

[0002] Five-axis CNC machine tools are essential equipment in modern manufacturing, and their high precision and versatility are attributed to their complex swivel head system. The swivel head itself is a key component of the five-axis CNC machine tool, enabling precise tool movement across multiple axes. Among various swivel heads, the A / C swivel head is a common type in five-axis CNC machine tools. This type of swivel head has both A and C axes, allowing for machining of workpieces at any angle within the horizontal plane, making it ideal for precise cutting of complex curved surfaces.

[0003] The geometric accuracy of the A / C axis oscillating head largely determines the machining accuracy of a five-axis CNC machine tool, making the geometric accuracy detection of the A / C axis oscillating head particularly important. However, due to the complex structure of the A / C axis oscillating head and the interactive linkage between the A and C axes during machining, its geometric errors are more complex, making measurement and control more difficult. Therefore, developing and designing a device capable of detecting the geometric accuracy of the A / C axis oscillating head is one of the important research and development goals for those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to propose an A / C axis oscillating head geometric accuracy detection device to solve the problem of low machining accuracy of CNC machine tools caused by the difficulty in detecting the geometric accuracy of A / C axis oscillating heads for error correction in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A geometric accuracy testing device for an A / C oscillating head includes a testing platform and an oscillating head assembly bracket. The oscillating head assembly bracket has a base plate mounted on the testing platform and a mounting vertical plate fixed on the base plate. A detachable assembly adapter plate is mounted on the mounting vertical plate. The assembly adapter plate has mounting holes for assembling the oscillating head to be tested. The base plate has an adjustment component that can perform local height adjustments on the oscillating head assembly bracket. The adjustment component is symmetrically distributed on both sides of the mounting holes. The adjustment component includes an adjustment column, a pressure cap, and a pad. The base plate has a slot at its bottom, and the pad is inserted into the slot. The base plate has a threaded hole at the slot. The adjustment column has an external thread that is threaded into the threaded hole. The bottom of the adjustment column abuts against the pad, and the top of the adjustment column extends out of the threaded hole and is provided with the pressure cap. The pressure cap, adjustment column, and pad are connected by fasteners.

[0007] Preferably, the mounting vertical plate has a downward-extending opening at the top to avoid the swing head, and the mounting adapter plate is installed and connected to one side wall of the mounting vertical plate at the opening. The mounting part of the swing head to be tested is assembled in the mounting hole, while the rear end of the swing head to be tested passes through the opening and protrudes beyond the other side wall of the mounting vertical plate at the opening.

[0008] Preferably, the opening size is larger than the mounting hole size, the mounting hole size on the assembly adapter plate matches the mounting part size of the swing head to be tested, mounting parts of different sizes are matched with mounting holes of corresponding sizes, and mounting holes of different sizes are matched with corresponding assembly adapter plates.

[0009] Preferably, the adjustment components are provided in four groups, with two groups located on one side of the mounting plate and the other two groups located on the other side of the mounting plate. The adjustment components located on both sides of the mounting plate are symmetrically distributed, while the adjustment components located on the same side of the mounting plate are symmetrically distributed with mounting holes.

[0010] Preferably, the opening is configured as a U-shape, and the mounting plate has connection holes on both sides of the U-shape. The assembly adapter plate is detached and connected to the mounting plate by fasteners.

[0011] Preferably, the testing platform has a flat top surface, and the testing platform is a marble platform.

[0012] Preferably, the slot is formed at the bottom of the base plate, and the slot is constructed as a rectangular groove, while the pad is constructed as a rectangular plate.

[0013] Compared with the prior art, this utility model provides an A / C oscillating head geometric accuracy detection device, which has the following beneficial effects:

[0014] The detection device of this utility model has an ingenious overall structural design, which can realize the geometric accuracy detection of the assembled swing head. The detection process is easy to implement and efficient, and can also achieve accurate detection, which has a beneficial effect on improving the machining accuracy of five-axis CNC machine tools. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the A / C swing head geometric accuracy detection device proposed in this utility model after being equipped with an A / C swing head.

[0016] Figure 2 This is a partial cross-sectional structural diagram of an A / C swing head geometric accuracy detection device proposed in this utility model.

[0017] Figure 3 for Figure 2 Enlarged diagram of point A in the diagram.

[0018] Figure 4 This is a three-dimensional structural diagram of the first position of the A / C swing head geometric accuracy detection device proposed in this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of a partial component assembly of an A / C swing head geometric accuracy detection device proposed in this utility model.

[0020] The following components are shown in the figure: threaded hole 2011, mounting vertical plate 202, opening 2021, assembly adapter plate 30, mounting hole 301, swivel head 40, adjustment component 50, adjustment column 501, pressure cap 502, pad 503, slot 504, connecting fastener 505, and standard spindle inspection bar 60. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Because swivel heads, especially A / C swivel heads, have a relatively complex structure with linked A and C axes, measuring their geometric accuracy is quite challenging. Furthermore, the accuracy of the swivel head directly affects the machining accuracy of a five-axis CNC machine tool. Therefore, this application specifically constructs an A / C swivel head geometric accuracy detection device to efficiently and accurately detect the geometric accuracy of the A / C swivel head for error correction, thereby effectively improving the machining accuracy of the five-axis CNC machine tool.

[0024] Specifically, in this embodiment, reference is made to the appendix. Figures 1-5A device for testing the geometric accuracy of an A / C oscillating head is provided. The device includes a testing platform 10 and an oscillating head assembly bracket 20. The oscillating head assembly bracket 20 has a base plate 201 mounted on the testing platform 10 and a mounting vertical plate 202 fixed on the base plate 201. A detachable assembly adapter plate 30 is mounted on the mounting vertical plate 202. The assembly adapter plate 30 is provided with mounting holes 301 for mounting the oscillating head 40 to be tested. The base plate 201 is provided with an adjustment component 50 that can make local height adjustments to the oscillating head assembly bracket 20. The adjustment component 50 is symmetrically distributed on both sides of the mounting holes 301.

[0025] With the above-mentioned detection device, the required geometric accuracy of the A / C oscillating head can be detected, such as the perpendicularity of the A-axis and C-axis, and the eccentricity of the A-axis or C-axis.

[0026] In this embodiment, the testing platform 10 is made of marble, is thick and rectangular, and has a flat top surface 101. The oscillating head assembly bracket 20 is installed at one end of the top of the testing platform 10 using screws (unmarked), effectively offsetting it at one end of the top of the testing platform 10, thus leaving sufficient testing space at the other end of the testing platform 10. It should be noted that in this embodiment, the length direction of the oscillating head assembly bracket 20 is consistent with the width direction of the testing platform 10, which avoids occupying the top surface area of ​​the testing platform 10 along its length, leaving sufficient space for testing.

[0027] The base plate 201 and mounting vertical plate 202 of the aforementioned swing head assembly bracket 20 are basically constructed as rectangular plates. The mounting vertical plate 202 is basically centered on the top of the base plate 201, and its length direction is consistent with that of the base plate 201. The screws are positioned close to both sides of the mounting vertical plate 202 to connect the base plate 201 to the top of the detection platform 10. Therefore, the screws used to connect the base plate 201 are not located at the four corners of the base plate 201, while the adjustment components 50 are located near the four corners. Since the four corners of the base plate 201 are not securely connected to the top of the detection platform 10 by screws, a slight local lift can be made at these corners. This slight lift can be understood as a small distance of elevation.

[0028] In this embodiment, the adjustment component 50 is constructed as follows: Specifically, the adjustment component 50 includes an adjustment column 501, a pressure cap 502, and a pad 503. The base plate 201 has a slot 504 at its bottom, and the pad 503 is inserted into the slot 504. The base plate 201 has a threaded hole 2011 at the slot 504. The adjustment column 501 has an external thread that is threaded into the threaded hole 2011. The bottom of the adjustment column 501 abuts against the pad 503, and the top of the adjustment column 501 extends out of the threaded hole 2011 and has the pressure cap 502. The pressure cap 502, the adjustment column 501, and the pad 503 are connected by fasteners 505. In this embodiment, the connecting fastener 505 can be a bolt. Specifically, after assembly, the pressure cap 502, adjusting column 501, and pad 503 are provided with corresponding upper and lower connecting holes (unmarked). These connecting holes allow the bolt to be screwed in to connect the three components into a whole.

[0029] Specifically, in this embodiment, the slot 504 is directly formed at the bottom of the base plate 201, and the slot 504 is constructed as a rectangular groove, while the pad plate 503 is constructed as a rectangular plate.

[0030] In actual operation, the adjusting column 501 needs to be fully tightened in the threaded hole 2011, and the bottom of the adjusting column 501 needs to abut against the top surface of the pad 503. When fine-tuning is required, the connecting fastener 505 is not tightened. Under this condition, the adjusting column 501 can be further screwed in with a wrench, but due to the obstruction of the pad 503, the adjusting column 501 cannot actually be screwed in. At this time, the base plate 201, which is threadedly connected to the adjusting column 501, will produce a local slight lifting action, thereby achieving a local slight lifting of the swing head assembly bracket 20. When the slight lifting height is reached, stop the screwing action of the adjusting column 501, and then tighten the connecting fastener 505 to the correct position, thereby securing the pressure cap 502, adjusting column 501, and pad 503.

[0031] In this embodiment, the overall structure of the adjustment component 50 is relatively easy to operate, and a special pad 503 is provided to prevent the bottom of the adjustment column 501 from directly pressing against the top of the detection platform 10 and causing pressure damage, thus protecting the detection platform 10. At the same time, the pressure cap 502, after being set, can act as a shim, which facilitates the fastening connection of the adjustment column 501 and the pad 503.

[0032] Since the adjustment components 50 are basically located at the four corners of the base plate 201, in this embodiment, the adjustment components 50 are arranged in four groups, two of which are located on one side of the mounting vertical plate 202, and the other two are located on the other side of the mounting vertical plate 202. The adjustment components on both sides of the mounting vertical plate 202 are symmetrically distributed, while the adjustment components 50 located on the same side of the mounting vertical plate 202 are symmetrically distributed with the mounting holes 301.

[0033] To facilitate the assembly of the oscillating head 40, in this embodiment, the mounting vertical plate 202 has a downwardly extending opening 2021 at its top to avoid the oscillating head 40. The mounting adapter plate 30 is mounted and connected to one side wall of the mounting vertical plate 202 at the opening 2021. The mounting part of the oscillating head 40 to be tested is assembled in the mounting hole 301, while the rear end of the oscillating head 40 to be tested passes through the opening 2021 and protrudes beyond the other side wall of the mounting vertical plate 202 at the opening 2021.

[0034] In its specific construction, the size of the opening 2021 is much larger than the size of the mounting hole 301. The size of the mounting hole 301 on the assembly adapter plate 30 matches the size of the mounting part of the oscillating head 40 to be tested. Different sizes of mounting parts are matched with mounting holes 301 of corresponding sizes, and different sizes of mounting holes 301 are matched with corresponding assembly adapter plates 30. In actual assembly, because the sizes of the oscillating heads 40 are different, the sizes of the mounting parts of the oscillating heads 40 are different. Therefore, the size of the mounting hole 301 matching the mounting part must also change. At this time, it is necessary to replace another assembly adapter plate 30 and open a mounting hole 301 on the assembly adapter plate 30 to match the mounting part. In this way, when assembling oscillating heads 40 of different sizes, only the matching assembly adapter plate 30 needs to be replaced to satisfy the oscillating head 40 on the mounting vertical plate 202, without having to change the mounting vertical plate 202. During actual assembly, since the size of the opening 2021 is much larger than the size of the mounting hole 301, it will not interfere with the assembly of swing heads 40 of different sizes. Furthermore, the opening 2021 allows the swing head 40 mounted on the mounting adapter plate 30 to be inserted into the opening 2021 from the top down, and then connected to the mounting vertical plate 202 through the mounting adapter plate 30, thereby realizing the installation of the swing head 40 on the swing head mounting bracket 20.

[0035] To facilitate the insertion of the swing head 40, the opening 2021 is constructed in a U-shape. The mounting vertical plate 202 has connection holes (unmarked) on both sides of the U-shape. The assembly adapter plate 30 is detachably connected to the mounting vertical plate 202 via fasteners (unmarked). The U-shape is easy to process and facilitates the insertion of the swing head 40. With the connection holes on both sides, when fastening the assembly adapter plate 30, only the sides of the assembly adapter plate 30 need to be fastened, eliminating the need for fastening at the bottom, thus providing better operating space for fastening.

[0036] The following explanation uses the perpendicularity test of the A-axis and C-axis of an A / C oscillating head as an example.

[0037] First, bolt the oscillating head 40 to the assembly adapter plate 30 and fix it. Then, use a crane to lift the oscillating head 40 so that its C-axis is in a horizontal position and lift it above the oscillating head assembly bracket 20. Slowly lower it from top to bottom and place it into the opening 2021 of the mounting vertical plate 202. Then, use bolts to connect the mounting vertical plate 202 to the assembly adapter plate 30. The assembly and fixing of the oscillating head 40 is then completed.

[0038] Next, install a standard spindle gauge bar 60 on the oscillating head 40, rotate the C-axis of the oscillating head 40, and visually align its A-axis axis approximately perpendicular to the testing platform 10. Then, using measuring tools such as a dial indicator, perform a "circle" operation on the A-axis on the testing platform 10. Subsequently... Figure 1 As shown, adjust the C-axis rotation angle to ensure that the vertical distance (height) between the standard spindle probe 60 and the testing platform 10 is consistent at points D and F. This step is also called leveling D and F, thus confirming that the C-axis axis is in a horizontal (zero-degree) state, that is, the C-axis axis is parallel to the testing platform 10. Then, with the C-axis axis at zero degrees, adjust the perpendicularity of the A-axis axis to the testing platform. Use an external hex wrench to rotate the adjusting column 501 in the corresponding position of the adjusting assembly 50, and use the screw drive to slightly lift the swing head assembly bracket 20 locally, so that the vertical distance (height) between the standard spindle probe 60 and the testing platform 10 is consistent at points D, E, and F. At this time, with the C-axis at zero degrees, the A-axis axis is perpendicular to the testing platform 10. After adjustment, tighten the adjusting column 501 and the shim 503 with the connecting fastener 505. Next, rotate the C-axis 180 degrees, similarly leveling D and F, and confirming that the C-axis is at a 180-degree angle. Then, by detecting the differences between E and D, and F, the perpendicularity error values ​​between the A-axis and the C-axis are obtained.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for detecting the geometric accuracy of an A / C oscillating head, characterized in that, The device includes a testing platform and a swing head assembly bracket. The swing head assembly bracket has a base plate that is installed and connected to the testing platform and a mounting vertical plate that is fixed on the base plate. A detachable assembly adapter plate is installed on the mounting vertical plate. The assembly adapter plate is provided with mounting holes for assembling the swing head to be tested. The base plate is provided with an adjustment component that can make local height adjustments to the swing head assembly bracket. The adjustment component is symmetrically distributed on both sides of the mounting holes. The adjustment assembly includes an adjustment column, a pressure cap, and a pad. The base plate has a slot at its bottom, and the pad is inserted into the slot. The base plate has a threaded hole at the slot. The adjustment column has an external thread to be threaded into the threaded hole. The bottom of the adjustment column abuts against the pad, and the top of the adjustment column extends out of the threaded hole and is provided with the pressure cap. The pressure cap, adjustment column, and pad are connected by fasteners.

2. The A / C oscillating head geometric accuracy testing device according to claim 1, characterized in that, The mounting plate has a downward-extending opening at the top to avoid the swing head. The mounting adapter plate is installed and connected to one side wall of the mounting plate at the opening. The mounting part of the swing head to be tested is assembled in the mounting hole, while the rear end of the swing head to be tested passes through the opening and protrudes beyond the other side wall of the mounting plate at the opening.

3. The A / C oscillating head geometric accuracy testing device according to claim 2, characterized in that, The opening size is larger than the mounting hole size. The size of the mounting hole on the assembly adapter plate matches the size of the mounting part of the swing head to be tested. Mounting parts of different sizes are matched with mounting holes of corresponding sizes, and mounting holes of different sizes are matched with corresponding assembly adapter plates.

4. The A / C oscillating head geometric accuracy detection device according to claim 1, characterized in that, The adjustment components are arranged in four groups, with two groups located on one side of the mounting plate and the other two groups located on the other side of the mounting plate. The adjustment components on both sides of the mounting plate are symmetrically distributed, while the adjustment components on the same side of the mounting plate are symmetrically distributed with mounting holes.

5. The A / C oscillating head geometric accuracy testing device according to claim 3, characterized in that, The opening is constructed in the shape of a U-shape, and the mounting plate has connection holes on both sides of the U-shape. The assembly adapter plate is detached and connected to the mounting plate by fasteners.

6. The A / C oscillating head geometric accuracy testing device according to claim 1, characterized in that, The testing platform has a flat top surface and is a marble platform.

7. The A / C oscillating head geometric accuracy testing device according to claim 1, characterized in that, The slot is formed at the bottom of the base plate, and the slot is constructed as a rectangular groove, while the pad is constructed as a rectangular plate.

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