Three-coordinate probe angle off-line adjusting device

Abstract

The utility model belongs to the technical field of three-coordinate probe adjustment, and particularly relates to a three-coordinate probe angle off-line adjusting device which is used for adjusting the relative angle between a probe and a connecting rod, the probe and the connecting rod are rotatably connected and can be locked through a locking piece, the adjusting device comprises a base, an index plate is fixedly arranged on the base, and the index plate is fixedly connected with the connecting rod. A rotating base is arranged at the top of the index plate, a positioning base for positioning the connecting rod in the circumferential direction and the radial direction is fixed to the rotating base, and a quick clamp for positioning the connecting rod in the axial direction is arranged on the positioning base; the levelness of the measuring pin is ensured through the supporting column, the sliding sleeve and the V-shaped seat, the levelness of the connecting rod is ensured through the positioning seat, then the positioning seat can be driven to rotate through the index plate, and therefore the angle between the measuring pin and the connecting rod can be adjusted. Operation of the measuring machine is not affected, the side head collision risk is avoided, and the angle positioning reference is standard.

Description

TECHNICAL FIELD

[0001] The utility model belongs to three coordinate measuring needle adjustment technical field, specifically relates to a three coordinate measuring needle angle off line adjusting device. BACKGROUND

[0002] The measuring needle angle adjustment of three coordinate measuring machine (CMM) is the key step to ensure the measurement accuracy, and needs to be flexibly configured according to the geometric characteristics of the measured workpiece. The core principles include avoiding the collision between the measuring needle and the workpiece or fixture, ensuring that the measuring needle contacts along the normal direction of the measured surface to reduce the cosine error, and ensuring that the measuring ball can effectively cover the target area (such as deep hole or inclined surface). Common scenarios include: vertical measurement (A / B angle is 0°), inclined surface measurement (adjust A / B angle according to the inclination angle, such as 45° inclined surface is set as A=45°), and deep hole measurement (adjust B angle to 90° to realize lateral contact). When operating, the measuring needle parameters (such as rod length, ball diameter) need to be defined in the CMM software, the A / B angle is inputted, and the standard ball is calibrated, and the known size is verified to ensure the accuracy. Matters needing attention include angle limitation (to avoid extreme inclination), measuring needle rigidity influence, multi-angle switching (such as PH10 automatic rotating probe head) and temperature compensation. For complex tasks, virtual measuring needle compensation, path planning simulation or multi-probe coordination scheme can be used.

[0003] Since the angle adjustment of the existing three coordinate measuring needle is carried out online on the measuring instrument, the angle needs to be changed many times in the actual adjustment process to achieve the best value, but the online adjustment needs to occupy the CMM measurement time, and the equipment cannot perform the measurement task during the adjustment process. Manual adjustment of the measuring needle angle in the CMM working space is easy to cause the probe head collision, especially for complex workpieces or narrow spaces. On-machine adjustment depends on the operator's experience, and there may be human errors in the angle division. When measuring complex workpieces, the angle needs to be adjusted repeatedly on the machine, which is low in efficiency. Beginners are easy to make mistakes when adjusting the angle on the CMM.

[0004] However,

[0005] To solve the above problems, the three coordinate measuring needle angle off line adjusting device is provided in the application. UTILITY MODEL CONTENTS

[0006] To solve the above problems in the prior art, the utility model provides a three coordinate measuring needle angle off line adjusting device, which has the characteristics of not affecting the device measurement and avoiding online risks.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: three -coordinate measuring needle angle off -line adjustment device, adjustment device is used for adjusting the relative angle of measuring needle and connecting rod, the rotation is connected between the measuring needle and the connecting rod and can be locked through the locking part, and the adjustment device includes the base, the base is fixed with the protractor disc, the top of protractor disc is equipped with the rotating seat of rotation, the rotating seat is fixed with the positioning seat that is positioned to the connecting rod circumferentially and radially, the positioning seat is equipped with the quick clamp that is positioned to the connecting rod axially, the base is also equipped with the V-shaped seat that can two -dimensional activity, the V-shaped seat upper end forms the V-shaped groove that places the measuring needle in the horizontal, when the protractor disc rotates and drives the positioning seat to rotate, thereby changes the angle between the measuring needle and the connecting rod.

[0008] As a preferred technical scheme of the utility model, the positioning seat includes the connecting seat of supporting base and the U-shaped seat that is in line with the diameter of base, the connecting hole for connecting pin insertion is arranged in the middle of connecting seat, and the positioning groove for partial insertion of positioning pin is arranged on the upper surface of connecting seat.

[0009] As a preferred technical scheme of the utility model, the quick clamp is two symmetrical arrangements in the top of U-shaped seat, and the front end pressure head of quick clamp is contacted with connecting column and is pressed tightly in the positioning seat after being pressed down.

[0010] As a preferred technical scheme of the utility model, the locking part is connected in the measuring needle and the connecting rod in the form of screw thread, and the position of measuring needle and connecting rod is fixed after the locking part is screwed.

[0011] As a preferred technical scheme of the utility model, the base is fixed with the supporting column, the supporting column is externally equipped with the sliding sleeve that slides vertically, and the V-shaped seat slides horizontally in one side of sliding sleeve.

[0012] As a preferred technical scheme of the utility model, the vertical rail and vertical sliding groove that slide fit are arranged between the supporting column and the sliding sleeve, the horizontal rail and horizontal sliding block that slide fit are arranged between the sliding sleeve and the V-shaped seat, and the locking hole that cooperates with bolt is arranged in one side of sliding sleeve.

[0013] Compared with the prior art, the utility model has the beneficial effects that: the supporting column, the sliding sleeve and the V-shaped seat ensure the levelness of the measuring needle, the positioning seat ensures the levelness of the connecting rod, then the protractor disc can drive the positioning seat to rotate, thereby the angle between the measuring needle and the connecting rod can be adjusted, the device can realize off-line adjustment, compared with the online adjustment on the existing equipment, has the advantages of not affecting the operation of measuring machine, avoiding the risk of side head collision, standard angle positioning reference. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. In the drawings:

[0015] Figure 1 It is a three-dimensional structural schematic view of the present application;

[0016] Figure 2 It is Figure 1 It is a structural schematic view of the right view;

[0017] Figure 3 It is Figure 1 It is a structural schematic view of the front view;

[0018] Figure 4 It is Figure 3 It is a structural schematic view of the left view;

[0019] Figure 5 It is a structural schematic view of the enlarged positioning seat in the present application;

[0020] Figure 6 It is a structural schematic view of the partial section of the measuring needle and the connecting rod in the present application;

[0021] In the drawings: 1, base; 2, protractor; 21, rotating seat; 3, positioning seat; 31, connecting seat; 311, connecting hole; 312, positioning groove; 32, U-shaped seat; 4, quick clamp; 5, supporting column; 51, vertical rail; 6, sliding sleeve; 61, vertical sliding groove; 62, horizontal rail; 63, locking hole; 7, V-shaped seat; 71, horizontal sliding block; 8, measuring needle; 9, connecting rod; 91, base plate; 92, connecting pin; 93, positioning pin; 94, connecting column; 10, locking piece. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0023] EMBODIMENT

[0024] Please refer to Figure 1 - Figure 6The utility model provides the following technical scheme: three -coordinate measuring needle angle off -line adjusting device, adjusting device is used for adjusting the relative angle of measuring needle 8 and connecting rod 9, and the rotation is connected between measuring needle 8 and connecting rod 9 and can be locked through locking piece 10, and adjusting device includes base 1, high -precision protractor 2 is fixedly arranged on base 1, the top of protractor 2 is equipped with the rotary seat 21 of rotation, and the rotation of knob on protractor 2 is twisted to rotate rotary seat 21, and the rotary seat 21 is fixed with the positioning seat 3 of the circumferential and radial positioning of connecting rod 9 by bolt, and the positioning seat 3 is installed horizontally with rotary seat 21 and is perpendicular to the butt joint of connecting rod 9, and the quick clamp 4 of the axial positioning of connecting rod 9 is fixed on the positioning seat 3 through bolt, and base 1 is also equipped with the V -shaped seat 7 of two -dimensional activity, and the V -shaped groove of the V -shaped seat 7 upper end is formed with the horizontal V -shaped groove of measuring needle 8, and when protractor 2 rotates and drives positioning seat 3 to rotate, the angle of measuring needle 8 and connecting rod 9 is changed.

[0025] Specifically, the positioning seat 3 includes a connecting seat 31 supporting a base 91 and a U-shaped seat 32 matching the diameter of the base 91, the U-shaped seat 32 facilitating the taking and positioning of the connecting rod 9, a connecting hole 311 for inserting a connecting pin 92 is provided in the middle of the connecting seat 31, a positioning groove 312 for partially inserting a positioning pin 93 is provided on the upper surface of the connecting seat 31, the connecting hole 311 and the positioning groove 312 cooperate with the connecting rod 9 for radial and circumferential positioning of the connecting rod 9 on the positioning seat 3, ensuring the connecting effect on the positioning seat 3.

[0026] Specifically, the quick clamp 4 is symmetrically arranged on the top of the U-shaped seat 32, and the front end of the quick clamp 4 contacts the connecting column 94 after being pressed down, and the connecting rod 9 is pressed tightly in the positioning seat 3, the quick clamp 4 corresponds to the connecting column 94, and the connecting rod 9 is pressed tightly on the positioning seat 3 along the axial direction, the quick clamp 4 has the function of quick pressing and disengagement, facilitating quick positioning and removal of the connecting rod 9, and ensuring convenience.

[0027] Specifically, the locking piece 10 is connected to the measuring needle 8 and the connecting rod 9 in a threaded manner, and the position of the measuring needle 8 and the connecting rod 9 is fixed after the locking piece 10 is tightened, as shown in the figure. Figure 6 The locking piece 10 is composed of a long bolt and a nut, the nut is axially slidably arranged on the inner side of the connecting rod 9 at the upper end, the long bolt passes through the measuring needle 8 and is connected to the nut, and the measuring needle 8 and the connecting rod 9 are pressed and positioned after the two are tightened, and a rubber pad, a sanding coating or the like can be arranged at the connection between the measuring needle 8 and the connecting rod 9 to enhance the connection stability.

[0028] Specifically, the base 1 is fixed with a support column 5, the support column 5 is externally provided with a vertically sliding sleeve 6, the V-shaped seat 7 horizontally slides on one side of the sleeve 6, the sliding between the support column 5 and the sleeve 6 can adjust the position of the V-shaped seat 7 according to the length of the connecting rod 9, and the sliding between the sleeve 6 and the V-shaped seat 7 can adjust the position of the V-shaped seat 7 according to the length of the measuring needle 8, and the flexibility is better.

[0029] Specific, support column 5 and sliding sleeve 6 between the sliding fit is provided with vertical rail 51 and vertical sliding groove 61, sliding sleeve 6 and V-shaped seat 7 between the sliding fit is provided with horizontal rail 62 and horizontal slider 71, two direction sliding structure ensures the stable sliding of V-shaped seat 7 and its structural stability, sliding sleeve 6 side is provided with locking hole 63 matched with bolt, bolt is through the spiral with locking hole 63 and support column 5 outer wall compression, so as to position the sliding sleeve 6 on the support column 5.

[0030] The working principle and use process of the utility model: the locking piece 10 is in the loosening state during the adjustment process of the measuring needle 8 and the connecting rod 9, the position of the V-shaped seat 7 can be adjusted by the support column 5 and the sliding sleeve 6 to horizontally support the measuring needle 8, the V-shaped seat 7 is positioned by the spiral compression of the bolt and the locking hole 63, the bottom plate 91 at the lower end of the connecting rod 9 is placed in the U-shaped seat 32 and contacts with the connecting seat 31, the connecting pin 92 is inserted into the connecting hole 311, the front end of the positioning pin 93 is inserted into 12, the two quick clamps 4 are operated to press and fix the connecting rod 9 on the positioning seat 3 through the connecting column 94, the relative angle between the measuring needle 8 and the connecting rod 9 is changed by rotating the adjusting knob on the protractor 2 to make the rotating seat 21 drive the positioning seat 3 to rotate, then the locking piece 10 is locked after the angle adjustment is completed, the angle between the measuring needle 8 and the connecting rod 9 is fixed, the measuring needle 8 and the connecting rod 9 adjusted are taken out upwards after the quick clamps 4 are loosened.

[0031] Finally, it should be pointed out that: the above only for preferred embodiments of the utility model have, and do not for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A device for off-line adjustment of the angle of a three-dimensional measuring stylus, the device being used to adjust the relative angle of a measuring stylus (8) and a connecting rod (9), the measuring stylus (8) and the connecting rod (9) being rotatably connected and being able to be locked by a locking member (10), the device comprising a base (1), characterized in that: The base (1) is fixed with a protractor (2), the top of the protractor (2) is provided with a rotating rotary seat (21), the rotary seat (21) is fixed with a positioning seat (3) for circumferentially and radially positioning the connecting rod (9), the positioning seat (3) is provided with a quick clamp (4) for axially positioning the connecting rod (9), the base (1) is further provided with a two-dimensional movable V-shaped seat (7), the V-shaped seat (7) is formed with a V-shaped groove for placing the measuring needle (8) horizontally at the upper end, when the protractor (2) rotates to drive the positioning seat (3) to rotate, the angle between the measuring needle (8) and the connecting rod (9) is changed.

2. The apparatus for off-line adjustment of the angle of a three-coordinate probe according to claim 1, characterized in that: The positioning seat (3) comprises a connecting seat (31) supporting a bottom disc (91) and a U-shaped seat (32) matching the diameter of the bottom disc (91), a connecting hole (311) for inserting a connecting pin (92) is formed in the middle of the connecting seat (31), and a positioning groove (312) for partially inserting a positioning pin (93) is formed on the upper surface of the connecting seat (31).

3. The apparatus of claim 2, wherein: The quick clamp (4) is symmetrically arranged on the top of the U-shaped seat (32), the front end of the quick clamp (4) is in contact with the connecting column (94) after being pressed down, and the connecting rod (9) is pressed tightly in the positioning seat (3).

4. The apparatus of claim 1, wherein: The locking member (10) is connected to the measuring needle (8) and the connecting rod (9) in a threaded manner, and the position of the measuring needle (8) and the connecting rod (9) is fixed after the locking member (10) is tightened.

5. The apparatus of claim 1, wherein: The base (1) is fixed with a support column (5), the support column (5) is provided with a vertically sliding sleeve (6) outside, and the V-shaped seat (7) horizontally slides on one side of the sleeve (6).

6. The apparatus of claim 5, wherein: The support column (5) and the sleeve (6) are provided with a vertically sliding vertical rail (51) and a vertical sliding groove (61), the sleeve (6) and the V-shaped seat (7) are provided with a horizontally sliding horizontal rail (62) and a horizontal sliding block (71), and the sleeve (6) is provided with a locking hole (63) matched with a bolt on one side.

Images