Device for detecting precision of main shaft

Abstract

The utility model relates to the technical field of machining center accessory detection, and discloses a main shaft precision detection device, which comprises a core seat mechanism and a detection arm, and the core seat mechanism comprises a first shaft connecting cutter, a second shaft connecting cutter, a third shaft connecting cutter, a fourth shaft connecting cutter and a fourth shaft connecting cutter, the clamping mechanism is integrally arranged on the side surface of the core seat mechanism; the protractor is arranged on the core seat mechanism; the measuring arm further comprises a position measuring mechanism which is arranged in the measuring arm in a sliding mode and used for rotationally arranging a second spindle cutter. The main shaft precision detection device solves the problems that when a main shaft is installed in a multi-main-shaft machining center or a main shaft is additionally installed in a single-main-shaft machining center, traditional detection equipment can only detect the rotation precision of the main shafts one by one, efficiency is low, the distance between the main shafts cannot be detected, and the tedious degree of detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of machining center accessories detection, in particular to a spindle detection accuracy device. Background Art

[0002] During the process of machining the workpiece in the machining center, it is necessary to install a tool on the spindle to rotate and cut the workpiece, and then process the workpiece into the required shape. Among them, the movement accuracy of the spindle component is an important factor that determines the machining quality. During the installation of the spindle, it is necessary to carefully check its installation to ensure the qualification rate of the workpiece.

[0003] After the spindle of the machining center is installed, a laser interferometer is generally used to measure the spindle's runout during rotation to determine the spindle's accuracy. However, when installing a spindle on a multi-spindle machining center or adding a spindle to a single-spindle machining center, traditional detection equipment can only detect the spindle's rotation accuracy one by one, which is inefficient and cannot detect the spindle's spacing, making the detection more complicated. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a device for detecting the precision of a spindle, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: a device for detecting spindle accuracy, comprising a core seat mechanism and a measuring arm, wherein the core seat mechanism comprises:

[0006] A first shaft-connecting knife arranged in the core seat mechanism and rotating through a bearing;

[0007] A locking mechanism integrally arranged on the side of the core seat mechanism; and

[0008] A protractor installed on the core seat mechanism;

[0009] The measuring arm further comprises: a positioning mechanism which is slidably arranged inside the measuring arm and is used for rotating and setting the second shaft-connecting knife.

[0010] Preferably, a level bubble is inlaid on the surface of the locking mechanism.

[0011] Preferably, a length scale is installed on the surface of the measuring arm, and a length pointer is installed on the side of the positioning mechanism, and the length pointer corresponds to the position of the length scale.

[0012] Preferably, the measuring arm comprises:

[0013] A slip ring rotatably sleeved on the outer edge of the core seat mechanism;

[0014] An arm core welded to the side of the slip ring; and

[0015] A top arm shell and a bottom arm shell mounted on the top and bottom of the arm core;

[0016] Wherein, a slide groove penetrating the arm core, the top arm shell and the bottom arm shell is provided on the measuring arm, and the positioning mechanism is slidably connected inside the slide groove.

[0017] Preferably, the inner diameter of the slide groove on the arm core is contracted.

[0018] Preferably, the positioning mechanism comprises:

[0019] A slider slidably arranged on the measuring arm;

[0020] A limiting groove is provided on the slide block and is slidably clamped on the measuring arm; and

[0021] A lifting rod penetrating the slider and slidably disposed inside the slider;

[0022] Wherein, a locking mechanism is integrally provided at the bottom of the sliding block, a screw cap is rotatably mounted on the locking mechanism, and the screw cap is screwed to the surface of the lifting rod penetrating the locking mechanism.

[0023] Preferably, the locking mechanism comprises:

[0024] A positioning block welded to the side of the core seat mechanism;

[0025] A storage tank is provided inside the positioning block and close to the side of the core seat mechanism;

[0026] A rubber pressing block sliding inside the storage tank and pressed against the measuring arm component; and

[0027] A screw having one end inserted and rotating inside the storage tank and the other end penetrating the positioning block;

[0028] Wherein, the screw rod is threadedly connected to the positioning block, and a knob is installed at the end of the screw rod.

[0029] Preferably, a corner mark pointer is installed on the surface of the measuring arm, and the position of the corner mark pointer corresponds to the position of the protractor.

[0030] Compared with the prior art, the utility model has the following beneficial effects:

[0031] 1. The spindle detection accuracy device is used to detect the spindle installed on the single-axis machining center or the spindle of the multi-axis machining center by arranging two measuring arms on the core seat mechanism, so that the device can accurately measure the distance and deflection angle between the spindles, and then determine whether the spindle landing point is consistent with the workpiece processing position. There is no need to use multiple devices for measurement, which reduces the cumbersomeness of detection and improves detection efficiency and detection accuracy.

[0032] 2. The spindle detection accuracy device is used to set the first spindle connecting tool and the second spindle connecting tool to be installed on different spindles respectively. During the detection process, the rotation of the spindle can be used to observe the fluctuation of the positioning mechanism, and then the cutting error during the spindle rotation processing can be determined, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 It is a schematic diagram of a partial cross-sectional structure of the utility model;

[0035] Figure 3 This is a schematic diagram of the structure of the measuring arm of the utility model;

[0036] Figure 4 This is a schematic diagram of the disassembled structure of the positioning mechanism of the utility model;

[0037] Figure 5 It is a schematic diagram of the cross-section top view of the locking mechanism of the utility model.

[0038] In the figure: 1. core seat mechanism; 2. first shaft-connecting knife; 3. measuring arm; 31. slip ring; 32. arm core; 33. bottom arm shell; 34. top arm shell; 35. slide groove; 4. positioning mechanism; 41. slider; 42. lifting rod; 43. limit groove; 44. positioning mechanism; 45. screw cap; 5. second shaft-connecting knife; 6. locking mechanism; 61. positioning block; 62. storage tank; 63. rubber pressure block; 64. screw; 65. knob; 7. level bubble; 8. protractor; 9. corner mark pointer; 10. length ruler; 11. length pointer. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] See also Figure 1-5, a spindle precision detection device, comprising a core seat mechanism 1 and a measuring arm 3, the core seat mechanism 1 comprising: a first shaft-connecting knife 2 arranged in the core seat mechanism 1 and rotating through a bearing; a locking mechanism 6 integrally arranged on the side of the core seat mechanism 1; and a protractor 8 installed on the core seat mechanism 1;

[0041] The measuring arm 3 further comprises: a positioning mechanism 4 which is slidably arranged inside the measuring arm 3 and is used for rotatingly setting the second shaft-connecting knife 5 .

[0042] Among them, the surface of the locking mechanism 6 is inlaid with a level bubble 7. The level bubble 7 is used as a reference to adjust the balance of the device when detecting the spindle accuracy, so that the device tends to be horizontal during detection, and then accurately judge the rotation error when the spindle is vertical.

[0043] Among them, a length scale 10 is installed on the surface of the measuring arm 3, and a length pointer 11 is installed on the side of the positioning mechanism 4. The length pointer 11 corresponds to the position of the length scale 10. By utilizing the rotation of the spindle, the fluctuation of the length pointer 11 and the length scale 10 is observed, and then the cutting error during the spindle rotation processing is judged, thereby improving the detection accuracy.

[0044] Among them, the measuring arm 3 includes: a slip ring 31 rotatably sleeved on the outer edge of the core seat mechanism 1; an arm core 32 welded to the side of the slip ring 31; and a top arm shell 34 and a bottom arm shell 33 installed on the top and bottom of the arm core 32; wherein, a slide groove 35 penetrating the arm core 32, the top arm shell 34 and the bottom arm shell 33 is opened on the measuring arm 3, and the positioning mechanism 4 is slidably connected inside the slide groove 35. The measuring arm 3 is used to detect the added spindle, observe the matching of the added spindle with the original spindle, and measure the installation position of the added spindle, so as to facilitate the adjustment of the error.

[0045] Among them, the inner diameter of the slide groove 35 located on the arm core 32 is in a contracted shape, and the contraction of the slide groove 35 on the arm core 32 is used to constrain the positioning mechanism 4, so that the positioning mechanism 4 can only slide parallel in the slide groove 35, thereby avoiding shaking of the positioning mechanism 4 during measurement, and at the same time having the ability to detect the rotation fluctuation of the main shaft.

[0046] Among them, the positioning mechanism 4 includes: a slider 41 slidably arranged on the measuring arm 3; a limiting groove 43 opened on the slider 41 and slidably clamped on the measuring arm 3; and a lifting rod 42 that passes through the slider 41 and is slidably arranged inside the slider 41; wherein, a locking mechanism 44 is integrally arranged at the bottom of the slider 41, and a screw cap 45 is rotatably mounted on the locking mechanism 44, and the screw cap 45 is screwed to the surface of the lifting rod 42 that passes through the locking mechanism 44. The positioning mechanism 4 is used to control the height of the second shaft-connecting knife 5 installed on the main shaft, and the height of the second shaft-connecting knife 5 is adjusted so that the level bubble 7 is centered as the adjustment is made, and the main shaft rotation accuracy in the horizontal state is measured, thereby improving the detection effect.

[0047] Among them, the locking mechanism 6 includes: a positioning block 61 welded to the side of the core seat mechanism 1; a storage tank 62 opened inside the positioning block 61 and close to the side of the core seat mechanism 1; a rubber pressure block 63 that slides inside the storage tank 62 and presses against the measuring arm 3 component; and a screw rod 64 with one end embedded and rotating inside the storage tank 62 and the other end passing through the positioning block 61; wherein the screw rod 64 is screwed to the positioning block 61, and a knob 65 is installed at the end of the screw rod 64. The locking mechanism 6 is used to fix the adjusted angle of the measuring arm 3, so that the device is in a stable state during measurement to avoid the device from swinging due to rotation.

[0048] Among them, a bevel pointer 9 is installed on the surface of the measuring arm 3, and the position of the bevel pointer 9 corresponds to the position of the protractor 8. The bevel pointer 9 cooperates with the protractor 8 to accurately reflect the deflection of the measuring arm 3, and then determine the position of the installed spindle and the original spindle.

[0049] Working principle: When performing precision inspection on the additional spindle of the machining center, first install the first coupling knife 2 and the second coupling knife 5 with the original spindle and the additional spindle respectively, and then use the positioning mechanism 4 to adjust the height of the second coupling knife 5 so that the bubble on the horizontal bubble 7 is centered, and then use the structure on the locking mechanism 6 to fix the measuring arm 3, and then read the deflection angle of the measuring arm 3 through the cooperation of the protractor 8 and the corner mark pointer 9, and then read the position of the second coupling knife 5 through the cooperation of the length ruler 10 and the length pointer 11, and judge the deflection angle and distance between the second coupling knife 5 and the first coupling knife 2, and finally start the machining center spindle to work, so that the first coupling knife 2 and the second coupling knife 5 rotate, observe the position fluctuation of the positioning mechanism 4 on the measuring arm 3, judge whether the first coupling knife 2 and the second coupling knife 5 are in a parallel vertical state, and reflect the rotation error of the first coupling knife 2 and the second coupling knife 5.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for detecting spindle accuracy, comprising a core seat mechanism (1) and a measuring arm (3), wherein the core seat mechanism (1) comprises: A first shaft-connecting knife (2) arranged in the core seat mechanism (1) and rotating via a bearing; a locking mechanism (6) integrally arranged on the side of the core seat mechanism (1); and A protractor (8) mounted on the core seat mechanism (1); The feature is that the measuring arm (3) further comprises: a positioning mechanism (4) which is slidably arranged inside the measuring arm (3) and is used for rotationally setting the second shaft-connecting knife (5).

2. A spindle detection accuracy device according to claim 1, characterized in that: A level bubble (7) is inlaid on the surface of the locking mechanism (6).

3. A spindle detection accuracy device according to claim 1, characterized in that: A length scale (10) is installed on the surface of the measuring arm (3), and a length pointer (11) is installed on the side of the positioning mechanism (4), wherein the length pointer (11) corresponds to the position of the length scale (10).

4. A spindle detection accuracy device according to claim 1, characterized in that: The measuring arm (3) comprises: A slip ring (31) rotatably sleeved on the outer edge of the core seat mechanism (1); an arm core (32) welded to the side of the slip ring (31); and A top arm shell (34) and a bottom arm shell (33) mounted on the top and bottom of the arm core (32); The measuring arm (3) is provided with a slide groove (35) penetrating the arm core (32), the top arm shell (34) and the bottom arm shell (33), and the positioning mechanism (4) is slidably connected inside the slide groove (35).

5. A device for detecting spindle accuracy according to claim 4, characterized in that: The inner diameter of the slide groove (35) located on the arm core (32) is in a contracted shape.

6. The device for detecting spindle accuracy according to claim 1, characterized in that: The positioning mechanism (4) comprises: A slider (41) slidably arranged on the measuring arm (3); A limiting groove (43) is provided on the slider (41) and is slidably clamped on the measuring arm (3); and A lifting rod (42) that penetrates the slider (41) and is slidably disposed inside the slider (41); The bottom of the sliding block (41) is integrally provided with a locking mechanism (44), a screw cap (45) is rotatably mounted on the locking mechanism (44), and the screw cap (45) is screwed to the surface of a lifting rod (42) that passes through the locking mechanism (44).

7. A spindle detection accuracy device according to claim 1, characterized in that: The locking mechanism (6) comprises: A positioning block (61) welded to the side of the core seat mechanism (1); A storage tank (62) is provided inside the positioning block (61) and close to a side surface of the core seat mechanism (1); A rubber pressing block (63) sliding inside the storage tank (62) and pressing against the measuring arm (3) component; and A screw (64) having one end engaged and rotating inside the storage tank (62) and the other end penetrating through the positioning block (61); The screw rod (64) is threadedly connected to the positioning block (61), and a knob (65) is installed at the end of the screw rod (64).

8. The device for detecting spindle accuracy according to claim 1, characterized in that: A corner mark pointer (9) is installed on the surface of the measuring arm (3), and the position of the corner mark pointer (9) corresponds to the position of the protractor (8).

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