CN216432902U - Calibration instrument for three-coordinate measuring machine - Google Patents
Calibration instrument for three-coordinate measuring machine Download PDFInfo
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- CN216432902U CN216432902U CN202123300175.9U CN202123300175U CN216432902U CN 216432902 U CN216432902 U CN 216432902U CN 202123300175 U CN202123300175 U CN 202123300175U CN 216432902 U CN216432902 U CN 216432902U
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Abstract
The utility model discloses a calibration instrument for a three-coordinate measuring machine, which relates to the technical field of the three-coordinate measuring machine and comprises a three-coordinate measuring machine main body, wherein a workbench is fixedly arranged on the three-coordinate measuring machine main body, an auxiliary calibration clamping mechanism is arranged on the workbench, the auxiliary calibration clamping mechanism comprises a bottom plate, a top plate, a positioning cylinder and a sleeve joint cylinder, a vertical screw rod is fixedly arranged on the bottom plate, a first through hole is formed on the top plate, the upper end of the vertical screw rod is inserted into the first through hole in a clearance fit manner, a nut is spirally arranged on the vertical screw rod in a fit manner, the nut is arranged above the top plate, a zero circular groove is formed on the top plate, a positioning cylinder is formed in the zero circular groove, the positioning cylinder is arranged above the positioning cylinder, the outer diameter of the positioning cylinder is the same as the outer diameter of the positioning cylinder, the sleeve joint cylinder is sleeved on the outer side of the positioning cylinder, the lower end of the sleeve joint cylinder is inserted into the zero circular groove in a clearance fit manner, a spring is arranged between the positioning cylinder and the positioning cylinder in an abutting way; zero calibration can be carried out quickly, and the measuring probe is not easy to damage.
Description
Technical Field
The utility model belongs to the technical field of three-coordinate measuring machine technique and specifically relates to a calibrating instrument for three-coordinate measuring machine is related to.
Background
The three axes of the three-coordinate measuring machine are provided with an air source brake switch and a micro-motion device, so that the single-axis precision transmission can be realized, and a high-performance data acquisition system is adopted for measurement. Before the measurement, need install the work piece on the workstation, set for zero point position, reuse the probe and carry out the precision measurement, three-coordinate measuring machine can drive the probe and carry out the motion of x axle, the three direction of y axle and z axle, the in-process of zero point position is adjusted to the probe, the probe needs the lateral wall that contacts the work piece many times, zero calibration inefficiency, and when probe quick travel and contact the work piece, the easy bump, lead to the probe to take place wearing and tearing, and then the inaccurate or the unable condition of using of calibration appears.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, provides a technical scheme that can solve above-mentioned problem.
A calibration instrument for a three-coordinate measuring machine comprises a three-coordinate measuring machine main body, a workbench is fixedly arranged on the three-coordinate measuring machine main body, an auxiliary calibration clamping mechanism is arranged on the workbench and comprises a bottom plate and a top plate, a location section of thick bamboo and a section of thick bamboo that cup joints, fixed mounting has vertical screw rod on the bottom plate, the shaping has first through-hole on the roof, the upper end clearance fit of vertical screw rod inserts first through-hole setting, the nut is installed in the spiral fit on the vertical screw rod, the nut sets up the top at the roof, the shaping has the round slot at zero point on the roof, the shaping has the location cylinder in the round slot at zero point, a location section of thick bamboo sets up in the cylindrical top in location, the external diameter of a location section of thick bamboo is the same with the cylindrical external diameter in location, the outside at a location section of thick bamboo is established to the cover of cup jointing section of thick bamboo, the lower extreme clearance fit of a cup jointing section of thick bamboo inserts the round slot at zero point setting, the spring is installed to the butt between a location section of thick bamboo and the location cylinder.
As a further aspect of the present invention: the three-coordinate measuring machine main body comprises a three-coordinate conveying device and a measuring probe, the three-coordinate conveying device drives the measuring probe to move, the measuring probe is arranged above the workbench, a spring hole is formed in the positioning cylinder, the lower end of the spring is fixedly arranged in the spring hole, the upper end of the spring is fixedly arranged in the positioning cylinder, and the lower end of the measuring probe is in clearance fit with the positioning cylinder and is inserted into the positioning cylinder.
As a further aspect of the present invention: the upper end of the measuring probe is fixedly provided with a conical supporting column, and the conical supporting column is pressed at the upper end of the positioning cylinder.
As a further aspect of the present invention: the outside of positioning cylinder is provided with the locating pin, and the shaping of the outside of positioning cylinder has the location blind hole, and the shaping of the outside of cup joint section of thick bamboo has positioning hole, and positioning pin clearance fit inserts positioning hole and location blind hole setting.
As a further aspect of the present invention: a limiting block is formed on the outer side of the upper end of the sleeve joint barrel.
As a further aspect of the present invention: the upper side fixed mounting of bottom plate has the locating lever, and the shaping has the second through-hole on the roof, and the upper end clearance fit of locating lever inserts the setting of second through-hole.
As a further aspect of the present invention: the outside shaping of nut has the twist grip, and the mutual setting of staggering between twist grip and the locating lever.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the zero point position is set on the three-coordinate measuring machine main body in advance, a measuring probe in the three-coordinate measuring machine main body is lowered and inserted into the positioning cylinder, the auxiliary calibration clamping mechanism is manually moved to a proper position, the positioning cylinder and the positioning cylinder are overlapped, the sleeve cylinder can fall into the zero point circular groove under the self weight, the zero point position of a workpiece is limited, the jig is locked on the workbench, the auxiliary calibration clamping mechanism is detached in a nut twisting mode, the workpiece installed in the jig does not need to be calibrated again, and the installation efficiency is improved;
2. when the skew appears in the position, the setting of spring can avoid measuring probe collision to damage, and a location section of thick bamboo and location cylinder can not coincide, cup joints a section of thick bamboo and can't fall the circular slot at zero point.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
Fig. 3 is a schematic structural diagram of the auxiliary calibrating and clamping mechanism of the present invention.
Fig. 4 is an exploded schematic view of the auxiliary calibration fixture of the present invention.
Shown in the figure: 1. a three-coordinate measuring machine main body; 1-1, a three-coordinate conveying device; 1-2, measuring a probe; 2. a work table; 3. the auxiliary calibration clamping mechanism; 3-1, a bottom plate; 3-2, a top plate; 3-3, a positioning cylinder; 3-4, sleeving a sleeve; 4. a vertical screw; 5. a first through hole; 6. a nut; 7. a zero circular groove; 8. positioning the cylinder; 9. a spring; 10. a spring hole; 11. a conical support column; 12. positioning pins; 13. positioning the blind hole; 14. positioning the through hole; 15. a limiting block; 16. positioning a rod; 17. a second through hole; 18. the handle is rotated.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in figures 1-4, the calibrating instrument for the three-coordinate measuring machine of the utility model comprises a three-coordinate measuring machine main body 1, a workbench 2 is fixedly arranged on the three-coordinate measuring machine main body 1, an auxiliary calibrating and clamping mechanism 3 is arranged on the workbench 2, the auxiliary calibrating and clamping mechanism 3 comprises a bottom plate 3-1, a top plate 3-2, a positioning cylinder 3-3 and a sleeve cylinder 3-4, a vertical screw 4 is fixedly arranged on the bottom plate 3-1, a first through hole 5 is formed on the top plate 3-2, the upper end of the vertical screw 4 is inserted into the first through hole 5 in a clearance fit manner, a nut 6 is arranged on the vertical screw 4 in a spiral fit manner, the nut 6 is arranged above the top plate 3-2, a circular groove 7 is formed on the top plate 3-2, a positioning cylinder 8 is formed in the zero circular groove 7, the positioning cylinder 3-3 is arranged above the positioning cylinder 8, the outer diameter of the positioning cylinder 3-3 is the same as that of the positioning cylinder 8, the sleeving cylinder 3-4 is sleeved on the outer side of the positioning cylinder 3-3, the lower end of the sleeving cylinder 3-4 is in clearance fit with the zero circular groove 7, and a spring 9 is arranged between the positioning cylinder 3-3 and the positioning cylinder 8 in an abutting connection manner;
the principle is as follows: before the measurement operation, a jig is pre-installed on a workbench 2, a workpiece is installed in the jig, an auxiliary calibration clamping mechanism 3 is clamped to the side edge of the jig, at the moment, a bottom plate 3-1 is inserted into the jig, a top plate 3-2 is pressed on the workpiece, a zero point position is pre-arranged on a three-coordinate measuring machine main body 1, a measuring probe 1-2 in the three-coordinate measuring machine main body 1 is descended and inserted into a positioning cylinder 3-3, the auxiliary calibration clamping mechanism 3 is manually moved to a proper position, the positioning cylinder 3-3 and a positioning cylinder 8 are mutually overlapped, a sleeve cylinder 3-4 can fall into a zero point circular groove 7 under the self weight, so that the zero point position of the workpiece is limited, the jig is locked on the workbench 2, the auxiliary calibration clamping mechanism 3 is detached by twisting a nut 6, the workpiece installed in the jig does not need to be calibrated again, the mounting efficiency is improved; when the position deviates, the spring 9 can prevent the measuring probe 1-2 from being damaged by collision, the positioning cylinder 3-3 and the positioning cylinder 8 cannot be overlapped, and the sleeve cylinder 3-4 cannot fall into the zero circular groove 7.
As a further aspect of the present invention: the three-coordinate measuring machine main body 1 comprises a three-coordinate conveying device 1-1 and a measuring probe 1-2, the three-coordinate conveying device 1-1 drives the measuring probe 1-2 to move, the measuring probe 1-2 is arranged above the workbench 2, a spring hole 10 is formed in a positioning cylinder 8, the lower end of a spring 9 is fixedly arranged in the spring hole 10, the upper end of the spring 9 is fixedly arranged in a positioning cylinder 3-3, and the lower end of the measuring probe 1-2 is inserted into the positioning cylinder 3-3 in a clearance fit manner; the measuring probe 1-2 is lowered into the positioning cylinder 3-3 to realize zero point positioning, when the axis of the measuring probe 1-2 and the circle center of the positioning cylinder 3-3 are overlapped, zero calibration is completed, the sleeve cylinder 3-4 can automatically fall into the zero point circular groove 7 under the self weight, and the spring hole 10 enables the installation of the spring 9 to be more stable.
As a further aspect of the present invention: the upper end of the measuring probe 1-2 is fixedly provided with a conical supporting column 11, and the conical supporting column 11 is pressed at the upper end of the positioning cylinder 3-3; when the measuring probe 1-2 descends, the positioning cylinder 3-3 can be pressed through the conical support column 11, the circle center of the positioning cylinder 3-3 is ensured to be superposed on the axis position of the measuring probe 1-2, and zero calibration is more accurate.
As a further aspect of the present invention: a positioning pin 12 is arranged on the outer side of the positioning cylinder 8, a positioning blind hole 13 is formed on the outer side of the positioning cylinder 8, a positioning through hole 14 is formed on the outer side of the sleeve barrel 3-4, and the positioning pin 12 is inserted into the positioning through hole 14 and the positioning blind hole 13 in a clearance fit manner; the positioning pin 12 can clamp the sleeve barrel 3-4 at the outer side of the positioning cylinder 8, and after the positioning pin 12 is pulled out, the sleeve barrel 3-4 falls into the zero circular groove 7 under the self weight to realize zero calibration and positioning.
As a further aspect of the present invention: a limiting block 15 is formed on the outer side of the upper end of the sleeve barrel 3-4; so that the sleeve barrels 3-4 cannot be completely sunk into the zero circular groove 7, and the defect that the sleeve barrels 3-4 are difficult to take out is avoided.
As a further aspect of the present invention: a positioning rod 16 is fixedly arranged on the upper side of the bottom plate 3-1, a second through hole 17 is formed in the top plate 3-2, and the upper end of the positioning rod 16 is inserted into the second through hole 17 in a clearance fit manner; the lifting motion of the top plate 3-2 is more stable, and the bottom plate 3-1 and the top plate 3-2 can clamp the jig more stably.
As a further aspect of the present invention: a rotary handle 18 is formed on the outer side of the nut 6, and the rotary handle 18 and the positioning rod 16 are arranged in a staggered manner; the nut 6 can be rotated through rotating the handle 18 to realize locking or loosening, and the three-coordinate measuring machine main body 1 can be conveniently clamped on a jig.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (7)
1. The utility model provides a calibrating instrument for three-coordinate measuring machine, includes the three-coordinate measuring machine main part, fixed mounting has the workstation in the three-coordinate measuring machine main part, its characterized in that: be provided with supplementary calibration fixture on the workstation, supplementary calibration fixture includes the bottom plate, the roof, a location section of thick bamboo and a section of thick bamboo that cup joints, fixed mounting has vertical screw rod on the bottom plate, the shaping has first through-hole on the roof, the upper end clearance fit of vertical screw rod inserts first through-hole setting, the nut is installed in spiral fit on the vertical screw rod, the nut sets up the top at the roof, the shaping has the round slot at zero point on the roof, the shaping has the location cylinder in the round slot at zero point, a location section of thick bamboo sets up in the cylindrical top in location, the external diameter of a location section of thick bamboo is the same with the cylindrical external diameter in location, the outside at a location section of thick bamboo is established to the cup joint section of thick bamboo cover, the lower extreme clearance fit of a cup joint section of thick bamboo inserts the round slot at zero point setting, the spring is installed to the butt between a location section of thick bamboo and the location cylinder.
2. A calibration instrument for a three coordinate measuring machine according to claim 1, wherein: the three-coordinate measuring machine main body comprises a three-coordinate conveying device and a measuring probe, the three-coordinate conveying device drives the measuring probe to move, the measuring probe is arranged above the workbench, a spring hole is formed in the positioning cylinder, the lower end of the spring is fixedly arranged in the spring hole, the upper end of the spring is fixedly arranged in the positioning cylinder, and the lower end of the measuring probe is in clearance fit with the positioning cylinder and is inserted into the positioning cylinder.
3. A calibration instrument for a three coordinate measuring machine according to claim 2, wherein: the upper end of the measuring probe is fixedly provided with a conical supporting column, and the conical supporting column is pressed at the upper end of the positioning cylinder.
4. A calibration instrument for a three coordinate measuring machine according to claim 1, wherein: the outside of positioning cylinder is provided with the locating pin, and the shaping of the outside of positioning cylinder has the location blind hole, and the shaping of the outside of cup joint section of thick bamboo has positioning hole, and positioning pin clearance fit inserts positioning hole and location blind hole setting.
5. A calibration instrument for a three coordinate measuring machine according to any of claims 1 or 4, wherein: a limiting block is formed on the outer side of the upper end of the sleeve joint barrel.
6. A calibration instrument for a three coordinate measuring machine according to claim 1, wherein: the upper side fixed mounting of bottom plate has the locating lever, and the shaping has the second through-hole on the roof, and the upper end clearance fit of locating lever inserts the setting of second through-hole.
7. A calibration instrument for a three coordinate measuring machine according to claim 1, wherein: the outside shaping of nut has the twist grip, and the mutual setting of staggering between twist grip and the locating lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123300175.9U CN216432902U (en) | 2021-12-24 | 2021-12-24 | Calibration instrument for three-coordinate measuring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123300175.9U CN216432902U (en) | 2021-12-24 | 2021-12-24 | Calibration instrument for three-coordinate measuring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216432902U true CN216432902U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123300175.9U Active CN216432902U (en) | 2021-12-24 | 2021-12-24 | Calibration instrument for three-coordinate measuring machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216432902U (en) |
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2021
- 2021-12-24 CN CN202123300175.9U patent/CN216432902U/en active Active
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