Rotating shaft positioning precision detection and adjustment device of gantry machining center

Abstract

The utility model provides a rotary shaft positioning precision detection adjusting device of a gantry machining center, which relates to the technical field of engineering machinery, and comprises a support plate, a rotary shaft, a rotary shaft, a rotary shaft, a rotary shaft, a rotary shaft and a rotary shaft, the center position of the other face of the supporting plate is used for being connected with the center position of a multi-face prism of the positioning precision detection device, and the multi-face prism and the supporting plate are coaxial. The adjusting mechanism is arranged on the supporting plate and the rotating shaft, and the axis of the polyhedral prism is parallel to the axis of the rotating shaft through adjustment; the adjusting device is compact in structure, simple, convenient and easy to operate, can quickly and effectively position and adjust the polyhedral prism, ensures that the end surface of the polyhedral prism is completely parallel to the end surface of the rotating shaft, ensures the accuracy and effectiveness of a detection result, further ensures the positioning precision of the rotating shaft, meets the requirement of high precision machining, and has the advantages of low cost, high precision and high convenience.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the engineering machinery technical field, more specifically, it relates to a rotary shaft positioning precision detection adjusting device of gantry machining center. BACKGROUND

[0002] The positioning precision detection of the rotary shaft of high-precision five-axis numerical control machine tool has been a technical problem in the detection field, wherein the five-axis head body utilizing encoder rotation positioning can be detected by laser interferometer in cooperation with rotary shaft calibration device, but this method cannot break the light in the detection process, so it is not suitable for the five-axis head body with tooth disc structure.

[0003] At present, the positioning precision detection device of the A-axis or C-axis of the rotary shaft of the five-axis head body with tooth disc structure usually utilizes photoelectric autocollimator in cooperation with polyhedral prism, but the detection precision of this way is greatly affected by the fixture, and the previous detection adjustment fixture cannot be finely adjusted, especially the end face installation adjustment of the polyhedral prism, when the end face of the polyhedral prism and the axis of the rotary shaft have perpendicularity deviation, the rotary precision error will be more than 10", which seriously affects the accuracy of the detection result. UTILITARY MODEL

[0004] The utility model aims at the existing technical deficiency, provides a rotary shaft positioning precision detection adjusting device of gantry machining center to solve the problem that the existing detection adjustment fixture cannot finely adjust the polyhedral prism in the background technology, the end face of the polyhedral prism and the axis of the rotary shaft have perpendicularity deviation, which seriously affects the accuracy of the detection result.

[0005] In order to realize the above-mentioned purpose, the utility model provides a rotary shaft positioning precision detection adjusting device of gantry machining center for adjusting the edge face of the polyhedral prism and the end face of the rotary shaft, which comprises:

[0006] The center position of one side of the supporting plate is connected with the center position of the end face of the rotary shaft through universal rotation, and the center position of the other side of the supporting plate is connected with the center position of the polyhedral prism of the positioning precision detection device, and the polyhedral prism is coaxial with the supporting plate;

[0007] The adjusting mechanism is arranged between the supporting plate and the rotary shaft, and the axis of the polyhedral prism is parallel to the axis of the rotary shaft through adjustment.

[0008] Preferably, the rotary shaft positioning precision detection adjusting device of gantry machining center further comprises:

[0009] The locking mechanism can be locked on the end face of the rotary shaft;

[0010] A connecting plate connected with the locking mechanism, and the adjusting mechanism is arranged between the supporting plate and the connecting plate.

[0011] Preferably, the gantry machining center's rotary shaft positioning accuracy detection and adjustment device further comprises:

[0012] A mounting rod, one end of the mounting rod is connected with the other face center position of the supporting plate, and the center hole of the polyhedral prism can be sleeved on the mounting rod;

[0013] A mounting sheet, the mounting sheet is detachably connected with the other end of the mounting rod.

[0014] Preferably, the opposite faces of the supporting plate and the connecting plate are each provided with a spherical groove, and the gantry machining center's rotary shaft positioning accuracy detection and adjustment device further comprises a centering ball, the centering ball is rollingly connected in the two spherical grooves, and an adjustment gap is formed between the supporting plate and the connecting plate.

[0015] Preferably, the adjusting mechanism comprises:

[0016] A plurality of adjusting screws, a plurality of adjusting through holes are arranged on the periphery of the center position of the supporting plate, a plurality of adjusting threaded holes are arranged on the periphery of the center position of the connecting plate, each adjusting screw penetrates through one adjusting through hole and is threadedly connected with one adjusting threaded hole;

[0017] A plurality of adjusting springs, a plurality of adjusting springs are respectively sleeved on a plurality of adjusting screws, and the adjusting springs are arranged between the supporting plate and the connecting plate.

[0018] Preferably, the locking mechanism comprises:

[0019] A sleeve disc, the sleeve disc is sleeved on the end face of the rotary shaft, and a plurality of first centering threaded holes are arranged on the periphery of the center position of the sleeve disc;

[0020] A plurality of first centering screws, each first centering screw is threadedly connected with one first centering threaded hole and threadedly connected with one second centering threaded hole on the end face of the rotary shaft.

[0021] Preferably, the gantry machining center's rotary shaft positioning accuracy detection and adjustment device further comprises a plurality of second centering screws, a plurality of third centering threaded holes are further arranged on the periphery of the center position of the sleeve disc, a plurality of fourth centering threaded holes are arranged on the periphery of the center position of the connecting plate, each second centering screw is threadedly connected with one fourth centering threaded hole and threadedly connected with one third centering threaded hole.

[0022] Preferably, the gantry machining center's rotary shaft positioning accuracy detection and adjustment device further comprises:

[0023] A limiting ring is sleeved on the mounting rod and fixedly connected with the mounting rod, and the polyhedral prism is arranged between the limiting ring and the mounting plate;

[0024] A locking bolt is arranged, the mounting plate is provided with a mounting hole, the other end of the mounting rod is provided with a mounting threaded hole, and the locking bolt penetrates through the mounting hole and is threadedly connected with the mounting threaded hole.

[0025] Preferably, the rotary shaft positioning precision detection and adjustment device of the gantry machining center further comprises an indicating table, the indicating table is arranged on a worktable of the gantry machining center, and an output end of the indicating table is used for abutting against an end surface of the polyhedral prism.

[0026] Preferably, the adjusting screw is an inner hexagonal adjusting screw.

[0027] The rotary shaft positioning precision detection and adjustment device of the gantry machining center has the advantages that: one side of the support plate is connected with the end surface of the rotary shaft in a universal rotation mode at a central position, the adjusting mechanism is connected to the support plate and the rotary shaft, when the polyhedral prism is connected to the support plate, the axis of the polyhedral prism can be parallel to the axis of the rotary shaft when the adjusting mechanism is adjusted, so that the end surface of the polyhedral prism is parallel to the end surface of the rotary shaft, thereby ensuring the accuracy and effectiveness of the detection result, and the positioning precision of the rotary shaft is ensured, the high-precision machining requirement is met, the cost is low, and high precision and high convenience are achieved.

[0028] Other features and advantages of the present application will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0029] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the several views, and wherein the same reference numbers and letters indicate corresponding parts throughout the several views.

[0030] Figure 1 Fig. 1 shows a structure schematic view of a rotary shaft positioning precision detection and adjustment device of a gantry machining center according to an embodiment of the present application;

[0031] Figure 2 Fig. 2 shows an exploded structure schematic view of a rotary shaft positioning precision detection and adjustment device of a gantry machining center according to an embodiment of the present application;

[0032] Figure 3A sleeve disc structure schematic view of a rotary shaft positioning precision detection adjusting device of a gantry machining center according to one embodiment of the present application is shown.

[0033] Figure 4 A connecting plate structure schematic view of a rotary shaft positioning precision detection adjusting device of a gantry machining center according to one embodiment of the present application is shown.

[0034] Marked for explanation:

[0035] 1, support plate; 2, rotary shaft; 3, polyhedral prism; 4, connecting plate; 5, mounting rod; 6, mounting piece; 7, centering ball; 8, adjusting screw; 9, adjusting spring; 10, sleeve disc; 11, limiting ring; 12, locking bolt. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present application will be described in more detail below. Although the preferred embodiments of the present application are described below, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided so that the present application is more thorough and complete, and the scope of the present application can be fully conveyed to those skilled in the art.

[0037] As shown in Figures 1-4 The present application provides a rotary shaft positioning precision detection adjusting device of a gantry machining center, which is used for adjusting the perpendicularity between the edge surface of a polyhedral prism 3 and the end surface of a rotary shaft 2. The adjusting device comprises:

[0038] A support plate 1, the central position of one side of the support plate 1 is connected with the central position of the end surface of the rotary shaft 2 through universal rotation, and the central position of the other side of the support plate 1 is used for connecting with the central position of the polyhedral prism 3 of the positioning precision detection device, and the polyhedral prism 3 is coaxial with the support plate 1;

[0039] An adjusting mechanism, which is arranged between the support plate 1 and the rotary shaft 2, and can make the axis of the polyhedral prism 3 parallel to the axis of the rotary shaft 2 through adjustment.

[0040] Specifically, in order to solve the problem that the existing detection and adjustment tool fixture cannot finely adjust the polyhedral prism, the end face of the polyhedral prism and the axis of the rotary shaft have perpendicularity deviation, and the accuracy of the detection result is seriously affected, the utility model provides a rotary shaft positioning precision detection and adjustment device of a gantry machining center, one side center position of the supporting plate 1 is connected with the end face center position of the rotary shaft 2 through universal rotation, the adjusting mechanism is connected on the supporting plate 1 and the rotary shaft 2, when the polyhedral prism 3 is connected on the supporting plate 1, the axis of the polyhedral prism 3 can be parallel with the axis of the rotary shaft 2 when the adjusting mechanism is adjusted, the end face of the polyhedral prism 3 and the axis of the rotary shaft 2 are avoided to have perpendicularity deviation, the adjusting device is compact in structure, simple and easy to operate, can quickly and effectively position and adjust the polyhedral prism 3, ensures that the polyhedral prism 3 is completely parallel with the end face of the rotary shaft 2, thereby ensuring the accuracy and effectiveness of the detection result, further ensuring the positioning precision of the rotary shaft 2, meeting the need of high-precision machining, low cost, high precision and high convenience.

[0041] When the polyhedral prism 3 is installed, if the end face of the supporting plate 1 and the rotary shaft 2, that is, the spindle head of the rotary shaft 2, is connected through surface-to-surface adhesion, although the axis of the polyhedral prism 3 is parallel with the axis of the rotary shaft 2, in actual use, when the surface-to-surface adhesion is connected, the end face of the polyhedral prism 3 and the axis of the rotary shaft 2 still have perpendicularity deviation, although the perpendicularity deviation is small, but it still causes the rotary precision error to be more than 10", seriously affecting the accuracy of the detection result, therefore, the utility model provides a rotary shaft positioning precision detection and adjustment device of a gantry machining center.

[0042] Preferably, the rotary shaft positioning precision detection and adjustment device of the gantry machining center further comprises:

[0043] The locking mechanism can be locked on the spindle head;

[0044] The connecting plate 4 is connected with the locking mechanism, and the adjusting mechanism is arranged between the supporting plate 1 and the connecting plate 4.

[0045] Specifically, the locking mechanism is used for detachably connecting the supporting plate 1 on the end face of the rotary shaft 2, which is convenient to use.

[0046] Preferably, the rotary shaft positioning precision detection and adjustment device of the gantry machining center further comprises:

[0047] The mounting rod 5 is connected with the other side center position of the supporting plate 1, and the center hole of the polyhedral prism 3 can be sleeved on the mounting rod 5;

[0048] The mounting piece 6 is detachably connected with the other end of the mounting rod 5.

[0049] Specifically, the mounting piece 6 and the mounting rod 5 are used for supporting the polyhedral prism, so that the polyhedral prism can be used in cooperation with the photoelectric autocollimator.

[0050] Preferably, the opposite surfaces of the support plate 1 and the connecting plate 4 are respectively provided with spherical grooves, and the positioning precision detection and adjustment device of the rotary shaft of the gantry machining center further comprises a centering ball 7, which is connected in the two spherical grooves in a rolling manner, and forms an adjustment gap between the support plate 1 and the connecting plate 4.

[0051] Specifically, the support plate 1 and the connecting plate 4 can be rotated in all directions through the centering ball 7, and the centering ball 7 is also used for center positioning, so as to ensure that the adjustment device is always coaxial with the measured rotary shaft.

[0052] Preferably, the adjustment mechanism comprises:

[0053] A plurality of adjustment screws 8, a plurality of adjustment through holes are arranged on the periphery of the central position of the support plate 1, a plurality of adjustment screw holes are arranged on the periphery of the central position of the connecting plate 4, each adjustment screw 8 penetrates through one adjustment through hole and is threadedly connected with one adjustment screw hole;

[0054] A plurality of adjustment springs 9, the plurality of adjustment springs 9 are respectively sleeved on the plurality of adjustment screws 8, and the adjustment spring 9 is arranged between the support plate 1 and the connecting plate 4.

[0055] Specifically, when the polyhedral prism 3 is adjusted, the adjustment mechanism changes the inclination angle of the support plate 1 by adjusting the plurality of adjustment screws 8 to finely adjust the end face of the polyhedral prism 3, so that the axis of the polyhedral prism 3 is parallel to the axis of the rotary shaft 1, avoids the perpendicularity deviation between the end face of the polyhedral prism 3 and the axis of the rotary shaft 1, and thus ensures the accuracy and effectiveness of the detection result.

[0056] Preferably, the locking mechanism comprises:

[0057] A sleeve disc 10, the sleeve disc 10 is sleeved on the end face of the rotary shaft 2, and a plurality of first centering screw holes are arranged on the periphery of the central position of the sleeve disc 10;

[0058] A plurality of first centering screws, each first centering screw is threadedly connected with a first centering screw hole and a second centering screw hole on the end face of the rotary shaft 2.

[0059] Specifically, the sleeve disc 10 is sleeved on the end face of the rotary shaft 2 and connected through the first centering screw, so as to ensure that the sleeve disc 10 and the shaft neck of the rotary shaft 2 have strict coaxiality and matching degree, and ensure that the axis of the polyhedral prism 3 is coaxial with the rotary shaft 2, and the size of the sleeve disc 10 can be designed according to the size of the rotary shaft 2, so that only the sleeve disc 10 needs to be replaced during the measurement of rotary shafts 2 with different sizes, which is very convenient, has high universality and saves the adjustment cost.

[0060] Preferably, the rotating shaft positioning accuracy detection and adjustment device of the gantry machining center further comprises a plurality of second centering screws, a plurality of third centering threaded holes are arranged on the circumferential side of the center position of the sleeve disc 10, and a plurality of fourth centering threaded holes are arranged on the circumferential side of the center position of the connecting plate 4, each second centering screw is threadedly connected with a fourth centering threaded hole and a third centering threaded hole.

[0061] Specifically, the connecting plate 4 and the sleeve disc 10 are connected through the second centering screws, so as to ensure that the sleeve disc 10 and the connecting plate 4 have strict coaxiality and matching degree, and ensure that the axis of the polyhedral prism 3 is coaxial with the rotating shaft 2.

[0062] Preferably, the rotating shaft positioning accuracy detection and adjustment device of the gantry machining center further comprises:

[0063] A limiting ring 11 is sleeved on the mounting rod 5 and is fixedly connected with the mounting rod 5, and the polyhedral prism 3 is arranged between the limiting ring 11 and the mounting sheet 6.

[0064] A locking bolt 12 is arranged, the mounting sheet 6 is provided with a mounting hole, the other end of the mounting rod 5 is provided with a mounting threaded hole, and the locking bolt 12 penetrates through the mounting hole and is threadedly connected with the mounting threaded hole.

[0065] Specifically, the limiting ring 11 is used to avoid the polyhedral prism 3 from moving, and the locking bolt 12 is used to detachably connect the mounting sheet 6.

[0066] Preferably, the rotating shaft positioning accuracy detection and adjustment device of the gantry machining center further comprises an indicating table, the indicating table is arranged on the workbench of the gantry machining center, and an output end of the indicating table is arranged in abutment with the end surface of the polyhedral prism 3.

[0067] Specifically, the indicating table is arranged on the workbench and is pressed against the bottom surface of the polyhedral prism 3, the rotating shaft 1 is rotated, the adjusting screw 8 of the adjustment device is adjusted, until the change of the pointer of the indicating table is within 0.005 mm, at this time, the axis of the polyhedral prism 3 is parallel to the axis of the rotating shaft 2, and the positioning accuracy detection of the rotating shaft 2 will not be affected by this error.

[0068] Preferably, the adjusting screw 8 is an internal hexagonal adjusting screw.

[0069] Specifically, the adjusting screw 8 is an internal hexagonal adjusting screw, which is convenient for on-site tool adjustment.

[0070] In summary, when the rotary shaft positioning precision detection adjusting device of the gantry machining center is applied to the C shaft of the rotary shaft 2, the locking mechanism is first installed on the shaft shoulder of the C shaft, then the support plate 1, the connecting plate 4, the centering ball 7, the adjusting screw 8 and the adjusting spring 9 are installed together and adjusted to a suitable position, then these structures are installed on the locking mechanism, and then the polyhedral prism 8 is installed on the support plate 1; the indicating table is installed on the worktable of the gantry machining center, the indicating table is pressed on the end surface of the polyhedral prism 8, the C shaft is rotated, the adjusting screw 8 of the adjusting device is adjusted, until the indicating table pointer changes within 0.005mm, at this time, the edge surface of the polyhedral prism 3 is parallel to the C shaft axis, and the C shaft positioning precision detection will not be affected by this error.

[0071] The adjusting device is only used to make the edge surface of the polyhedral prism perpendicular to the end surface of the rotary shaft, and subsequent positioning precision measurement of the rotary shaft also needs to use the conventional positioning precision detection device and measurement method including the polyhedral prism, which is not described here.

[0072] The above has described various embodiments of the utility model, the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A device for detecting and adjusting the positioning accuracy of a rotary shaft of a gantry machining center, for adjusting the perpendicularity between the edge surface of a polyhedral prism and the end surface of the rotary shaft, characterized in that, The adjusting device comprises: a support plate, a central position of one side of the support plate is connected with a central position of an end surface of the rotating shaft through universal rotation, and a central position of the other side of the support plate is connected with a central position of the polyhedral body of the positioning precision detection device, the polyhedral body being coaxial with the support plate; an adjusting mechanism, which is arranged between the support plate and the rotating shaft and can be adjusted to make the axis of the polyhedral body parallel to the axis of the rotating shaft.

2. The rotation axis positioning accuracy detection and adjustment device of a gantry machining center according to claim 1, characterized in that, The rotating shaft positioning precision detection adjusting device of the gantry machining center further comprises: a locking mechanism, which can be locked on the end surface of the rotating shaft; a connecting plate, which is connected with the locking mechanism, and the adjusting mechanism is arranged between the support plate and the connecting plate.

3. The device for detecting and adjusting the positioning accuracy of the rotary shaft of a gantry machining center according to claim 1, characterized in that, The rotating shaft positioning precision detection adjusting device of the gantry machining center further comprises: a mounting rod, one end of the mounting rod is connected with the central position of the other side of the support plate, and the central hole of the polyhedral body can be sleeved on the mounting rod; a mounting sheet, which is detachably connected with the other end of the mounting rod.

4. The rotation axis positioning accuracy detection and adjustment device of a gantry machining center according to claim 2, characterized in that, The opposite sides of the support plate and the connecting plate are respectively provided with spherical grooves, and the rotating shaft positioning precision detection adjusting device of the gantry machining center further comprises a centering ball, which is rollingly connected in the two spherical grooves and forms an adjusting gap between the support plate and the connecting plate.

5. The rotation axis positioning accuracy detection and adjustment device of a gantry machining center according to claim 2, characterized in that, The adjusting mechanism comprises: a plurality of adjusting screws, a plurality of adjusting through holes are arranged on the periphery of the central position of the support plate, a plurality of adjusting threaded holes are arranged on the periphery of the central position of the connecting plate, each adjusting screw penetrates through one adjusting through hole and is threadedly connected with one adjusting threaded hole; a plurality of adjusting springs, the plurality of adjusting springs are respectively sleeved on the plurality of adjusting screws, and the adjusting springs are arranged between the support plate and the connecting plate.

6. The rotation axis positioning accuracy detection and adjustment device of a gantry machining center according to claim 2, characterized in that, The locking mechanism comprises: a sleeve disc, which is sleeved on the end surface of the rotating shaft, and a plurality of first centering threaded holes are arranged on the periphery of the central position of the sleeve disc; a plurality of first centering screws, each first centering screw is threadedly connected with one first centering threaded hole and one second centering threaded hole on the end surface of the rotating shaft.

7. The device for detecting and adjusting the positioning accuracy of the rotary shaft of a gantry machining center according to claim 6, characterized in that, The rotating shaft positioning precision detection adjusting device of the gantry machining center further comprises a plurality of second centering screws, a plurality of third centering threaded holes are further arranged on the periphery of the central position of the sleeve disc, a plurality of fourth centering threaded holes are arranged on the periphery of the central position of the connecting plate, each second centering screw is threadedly connected with one fourth centering threaded hole and one third centering threaded hole.

8. The device for detecting and adjusting the positioning accuracy of the rotary shaft of a gantry machining center according to claim 3, characterized in that, The rotating shaft positioning precision detection adjusting device of the gantry machining center further comprises: a limiting ring, which is sleeved on the mounting rod and fixedly connected with the mounting rod, and the polyhedral body is arranged between the limiting ring and the mounting sheet; a locking bolt, the mounting sheet is provided with a mounting hole, the other end of the mounting rod is provided with a mounting threaded hole, and the locking bolt penetrates through the mounting hole and is threadedly connected with the mounting threaded hole.

9. The device for detecting and adjusting the positioning accuracy of the rotary shaft of a gantry machining center according to claim 1, characterized in that, The rotary shaft positioning precision detection and adjustment device of the gantry machining center further comprises an indicating table, the indicating table is arranged on the worktable of the gantry machining center, and an output end of the indicating table is used for abutting against the end surface of the polyhedral body.

10. The device for detecting and adjusting the positioning accuracy of the rotary shaft of a gantry machining center according to claim 5, characterized in that, The adjusting screw is an internal hex adjusting screw.

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