CN211103013U - Auxiliary leveling device for five-axis machine tool - Google Patents

Auxiliary leveling device for five-axis machine tool Download PDF

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Publication number
CN211103013U
CN211103013U CN201921760907.2U CN201921760907U CN211103013U CN 211103013 U CN211103013 U CN 211103013U CN 201921760907 U CN201921760907 U CN 201921760907U CN 211103013 U CN211103013 U CN 211103013U
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CN
China
Prior art keywords
calibration point
preset calibration
machine tool
positioning
standard platform
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Expired - Fee Related
Application number
CN201921760907.2U
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Chinese (zh)
Inventor
张波
杨金林
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Zhejiang University of Technology ZJUT
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Zhejiang University of Technology ZJUT
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Priority to CN201921760907.2U priority Critical patent/CN211103013U/en
Application granted granted Critical
Publication of CN211103013U publication Critical patent/CN211103013U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a leveling device is assisted to five-axis machine tool, includes standard platform, four locating pins, four locating pin shaft locking devices, displacement sensor and connects the dead lever, and a locating pin shaft locking device corresponds a locating pin, the standard platform is located five-axis numerical control machine tool cradle's top and is connected through four locating pins and four locating pin shaft locking devices, the bottom surface of standard platform and the laminating of five-axis numerical control machine tool cradle's top surface, displacement sensor is located standard platform's top and is connected with five-axis numerical control machine tool cutter holding head through connecting the dead lever, displacement sensor's probe and horizontal plane vertical arrangement. The utility model provides a five-axis machine tool auxiliary leveling device which has lower cost and convenient and stable adjustment.

Description

Auxiliary leveling device for five-axis machine tool
Technical Field
The utility model belongs to the technical field of five numerical control machine tool machines and specifically relates to a five lathe are assisted levelling device is related to.
Background
The existing five-axis numerical control machine tool is leveled and returned through a closed-loop feedback system, the closed-loop feedback system is quite expensive, and the cost is greatly increased by additionally arranging the whole set of closed-loop feedback system on the low-precision numerical control machine tool.
Disclosure of Invention
In order to overcome the defects existing in the prior art, the utility model provides a five-axis machine tool auxiliary leveling device which has lower cost, convenient adjustment and stability.
The utility model provides a technical scheme that its technical problem adopted is:
an auxiliary leveling device for a five-axis machine tool comprises a standard platform, four positioning pins, four positioning pin shaft locking devices, a displacement sensor and a connecting fixing rod, wherein one positioning pin shaft locking device corresponds to one positioning pin;
the top surface of the standard platform is provided with a calibration range frame, a preset calibration point for detecting the displacement sensor is arranged in the calibration range frame, and the displacement sensor is connected with the single chip microcomputer.
Furthermore, the cradle of the five-axis numerical control machine tool is provided with positioning step holes with the same number as the positioning pins, the middle lower part of each positioning pin is provided with an annular boss, the annular bosses are matched and connected with the positioning step holes, the standard platform is provided with positioning holes with the same number as the positioning pins, and the upper ends of the positioning pins penetrate through the positioning holes of the standard platform and are connected with the positioning pin shaft locking devices.
Furthermore, the number of the preset calibration points is seven, which are respectively a first preset calibration point, a second preset calibration point, a third preset calibration point, a fourth preset calibration point, a fifth preset calibration point, a sixth preset calibration point and a seventh preset calibration point, wherein the first preset calibration point is arranged at the center of the standard platform, and the second preset calibration point and the seventh preset calibration point, the fourth preset calibration point and the fifth preset calibration point, and the third preset calibration point and the sixth preset calibration point are arranged in central symmetry; the second preset calibration point is on the same straight line with the third preset calibration point and the fourth preset calibration point, and the fifth preset calibration point is on the same straight line with the sixth preset calibration point and the seventh calibration point.
The beneficial effects of the utility model are that: the adjustment is convenient and stable; on the premise of ensuring the leveling precision, the product cost is greatly reduced.
Drawings
Fig. 1 is an exploded schematic view of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural diagram of a standard platform.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1-3, an auxiliary leveling device for a five-axis machine tool comprises a standard platform ⑥, a positioning pin ⑤, a positioning pin shaft locking device ⑤, a displacement sensor ⑤, a connecting fixing rod ⑤ and a plurality of standard fasteners, wherein the standard platform ⑤ is connected with a cradle ⑤ of the five-axis numerical control machine tool through four positioning pins ⑤, positioning step holes with the same number as the positioning pins ⑤ are formed in the cradle ⑦ of the five-axis numerical control machine tool, positioning holes with the same number as the positioning pins are formed in the standard platform ⑤, the positioning pins ⑤ are shaped like a Chinese character 'zhong', the nominal diameter of two ends is 4mm, the nominal diameter of the middle is 8mm, the lower portion, namely a short end, the middle portion, namely an annular boss, is matched with the positioning step holes of the cradle of the five-axis numerical control machine tool, the upper portion, namely a long end, is matched with the positioning holes of the standard platform 638, the positioning pin shaft locking device ④ is used for locking the positioning pins and limiting the axial movement of the positioning pins, so that the bottom surface of the standard platform ⑥ is attached to the top surface of the cradle ⑦ of the five-axis numerical control machine tool, the displacement sensor 368 is directly purchased, the existing.
The standard platform ⑥ is the foundation of the utility model discloses the reliability, its machining precision will directly influence leveling effect, its external diameter size is 220mm, no precision requirement, its four locating hole nominal diameter 4mm adopts the base hole system, and surface roughness Ra equals 0.20 mu m, and the roughness Ra of its upper and lower surface equals 0.05 mu m, needs to use the grinding machine processing, and its upper surface auxiliary positioning pattern need guarantee its positional accuracy of demarcation.
The positioning pin ⑤ is used for accurate positioning, and its stub plays a guiding role, the middle part is the annular boss and the cradle positioning step hole taking clearance fit under the base hole system, the upper part is the positioning hole taking clearance fit with the standard platform under the base hole system.
The standard platform ⑥ can be regarded as an ideal plane after being positioned by the positioning pin, and the X-Y-A-C-Z five shafts can be sequentially calibrated by utilizing the preset calibration points on the top surface of the standard platform.
The calibration sequence is as follows, first calibrating the preset calibration point B1, moving the probe of the displacement sensor ③ to the preset calibration point center of the calibration point B1, with a preset calibration point diameter of 1mm, second calibrating X, Y the coordinate axes, adjusting the C axis by moving the machine tool in both directions of the X-Y axis, for example, starting from the preset calibration point B1, the spindle moving only in the X axis direction, continuously rotating the C axis, bringing the preset calibration points B3, B6 on a straight line, and similarly bringing the preset calibration points B5, B6, B7 on a straight line, third leveling the preset calibration points B2, B4, B6 using the displacement sensor to measure the preset calibration points B3, B6 in the Z axis direction coordinates Z2, Z4, Z6, if the two preceding steps are performed accurately, then i (Z2+ Z4)/2-Z3 i < eps is allowed, the smaller eps, the better the effect, the error is adjusted again, if the first step 3 + Z operation error is performed again, then the final leveling is achieved.
The working principle of the utility model is that the mechanical structure and the displacement sensor ③ are mutually matched to finish the leveling and homing of the numerical control machine tool, the adjustment principle is that the displacement sensor ③ is arranged on the tool holding head ① of the five-axis numerical control machine tool, and the data feedback and the single chip microcomputer are processed by the single chip microcomputer to obtain the leveling scheme by utilizing the displacement sensor to be in contact with the preset calibration point.
When the standard platform is inclined, the displacement sensor ③ detects different displacement data and obtains a leveling scheme by analyzing and processing the displacement data, and the standard platform ⑥ is attached to the cradle ⑦ of the five-axis numerical control machine tool, so that the cradle ⑦ of the five-axis numerical control machine tool can be leveled according to the leveling scheme.
The utility model discloses supplementary leveling principle is comparatively simple, and it is considerable that it adjusts precision, stability, price/performance ratio.

Claims (3)

1. The utility model provides a five-axis machine tool assists levelling device which characterized in that: the five-axis numerical control machine tool cradle positioning and positioning device comprises a standard platform, four positioning pins, four positioning pin shaft locking devices, a displacement sensor and a connecting fixing rod, wherein one positioning pin shaft locking device corresponds to one positioning pin, the standard platform is positioned above the five-axis numerical control machine tool cradle and is connected with the four positioning pin shaft locking devices through the four positioning pins, the bottom surface of the standard platform is attached to the top surface of the five-axis numerical control machine tool cradle, the displacement sensor is positioned above the standard platform and is connected with a cutter clamping head of the five-axis numerical control machine tool cradle through the connecting fixing rod, and a probe of the displacement sensor;
the top surface of the standard platform is provided with a calibration range frame, a preset calibration point for detecting the displacement sensor is arranged in the calibration range frame, and the displacement sensor is connected with the single chip microcomputer.
2. The auxiliary leveling device of the five-axis machine tool according to claim 1, wherein: the cradle of the five-axis numerical control machine tool is provided with positioning step holes with the same number as the positioning pins, an annular boss is arranged at the middle lower part of each positioning pin and is matched and connected with the positioning step holes, the standard platform is provided with positioning holes with the same number as the positioning pins, and the upper ends of the positioning pins penetrate through the positioning holes of the standard platform and are connected with a positioning pin shaft locking device.
3. The auxiliary leveling device of the five-axis machine tool according to claim 1 or 2, wherein: the seven preset calibration points are respectively a first preset calibration point, a second preset calibration point, a third preset calibration point, a fourth preset calibration point, a fifth preset calibration point, a sixth preset calibration point and a seventh preset calibration point, the first preset calibration point is arranged at the center of the standard platform, and the second preset calibration point and the seventh preset calibration point, the fourth preset calibration point and the fifth preset calibration point, the third preset calibration point and the sixth preset calibration point are arranged in a central symmetry manner; the second preset calibration point is on the same straight line with the third preset calibration point and the fourth preset calibration point, and the fifth preset calibration point is on the same straight line with the sixth preset calibration point and the seventh calibration point.
CN201921760907.2U 2019-10-21 2019-10-21 Auxiliary leveling device for five-axis machine tool Expired - Fee Related CN211103013U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921760907.2U CN211103013U (en) 2019-10-21 2019-10-21 Auxiliary leveling device for five-axis machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921760907.2U CN211103013U (en) 2019-10-21 2019-10-21 Auxiliary leveling device for five-axis machine tool

Publications (1)

Publication Number Publication Date
CN211103013U true CN211103013U (en) 2020-07-28

Family

ID=71711527

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921760907.2U Expired - Fee Related CN211103013U (en) 2019-10-21 2019-10-21 Auxiliary leveling device for five-axis machine tool

Country Status (1)

Country Link
CN (1) CN211103013U (en)

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200728

Termination date: 20211021

CF01 Termination of patent right due to non-payment of annual fee