CN115255906A - Alignment method and device for coaxial assembly of rotating member - Google Patents
Alignment method and device for coaxial assembly of rotating member Download PDFInfo
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- CN115255906A CN115255906A CN202210759167.0A CN202210759167A CN115255906A CN 115255906 A CN115255906 A CN 115255906A CN 202210759167 A CN202210759167 A CN 202210759167A CN 115255906 A CN115255906 A CN 115255906A
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- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/10—Aligning parts to be fitted together
Abstract
The invention provides an alignment method and a device for coaxial assembly of a rotating member, wherein the alignment method comprises the following steps: 1) Positioning a first rotating member and a second rotating member; 2) Defining a reference axis Y; 3) Measuring an initial axis Y2 of the second rotating member; 4) Judging whether the initial axis Y2 is parallel to the reference axis Y, if so, executing the step 5), and if not, executing the step 5) after adjusting the parallel; 5) Measuring an initial axis Y1 of the first rotating member; 6) Judging whether the initial axis Y1 is parallel to the adjusted axis Y2' of the second rotating member or not; 7) And adjusting the position of the first rotating member on the X-axis, the Y-axis and the Z-axis until the adjusted axis Y1 'of the first rotating member is collinear with the adjusted axis Y2' of the second rotating member. By adopting the alignment method and the alignment device, the automatic alignment during coaxial assembly of the rotating member can be realized, the working efficiency of coaxial assembly of the rotating member is greatly improved, and the coaxial assembly precision is improved.
Description
Technical Field
The invention relates to the technical field of detection, in particular to an alignment method and device for two rotating parts needing high-precision coaxial assembly.
Background
A rotary workpiece needing precise coaxial assembly welding exists in the field of microelectronic design, and in order to meet the high performance requirement of the part, two rotary workpieces need to meet the extremely high coaxiality requirement in the assembly process.
For such rotary parts with accurate position requirements, a conventional coaxial assembly mode is shaft hole matching, and the position accuracy of two workpieces after assembly is ensured by utilizing the processing accuracy and the assembly accuracy of a pin hole and an optical axis, but the method is only suitable for the type that the two workpieces have shaft and hole characteristics respectively, and the technical difficulty and the contingency are higher due to the severe dependence on the processing accuracy of the shaft and hole characteristics and the assembly skill of technical personnel; another common coaxial assembly method is a machining process characteristic, for example, a flange process characteristic is pre-machined on two workpieces, and the two workpieces are coaxially assembled by using the cooperation between the flange process characteristics, but the assembly precision of the method is low, and the method is difficult to meet the increasing precision requirement of the current microelectronic products.
In order to adapt to the current situation of high-speed development of the microelectronic industry in the current era and meet the high-precision and high-speed requirements of product assembly in the microelectronic industry, an alignment method and an alignment device for coaxial assembly of a rotating part are urgently needed to be designed, and the precision and the efficiency of coaxial assembly of the parts are improved.
Disclosure of Invention
The invention provides an alignment method and device for coaxial assembly of a rotating member, which can solve the problems of poor universality, low precision and low efficiency of the coaxial assembly method of the rotating member in the prior art.
In order to solve the technical problem, the alignment method provided by the invention adopts the technical scheme that the alignment method for the coaxial assembly of the rotating member comprises the following steps:
1) Positioning a first rotating member and a second rotating member;
2) Defining a reference axis Y;
3) Measuring by using a three-coordinate measuring machine to obtain an initial axis Y2 of the second rotating member;
4) Judging whether the initial axis Y2 of the second rotating member is parallel to the reference axis Y, if so, executing the step 5), otherwise, adjusting the second rotating member until the adjusted axis Y2' is parallel to the reference axis Y, and then executing the step 5);
5) Measuring by using a three-coordinate measuring machine to obtain an initial axis Y1 of the first rotating member;
6) Judging whether the initial axis Y1 of the first rotating member is parallel to the adjusted axis Y2 ' of the second rotating member, if so, executing the step 7), otherwise, adjusting the first rotating member until the adjusted axis Y1 ' is parallel to the adjusted axis Y2 ' of the second rotating member, and then executing the step 7);
7) And adjusting the position of the first rotating member on the X-axis, the Y-axis and the Z-axis until the adjusted axis Y1 'of the first rotating member is collinear with the adjusted axis Y2' of the second rotating member.
In the step 5), a normal vector of one end face of the first rotating member is measured, and whether the normal vector is parallel to the axis Y2 'of the second rotating member after adjustment is judged, if yes, the initial axis Y1 of the first rotating member is measured continuously, and if not, the first rotating member is adjusted until the normal vector of the end face of the first rotating member after adjustment is parallel to the axis Y2', and then the initial axis Y1 of the first rotating member is measured.
In the step 3), when the three-coordinate measuring machine measures the initial axis Y2 of the second rotating member, the three-coordinate measuring machine obtains the pitch angle alpha and the yaw angle theta of the initial axis Y2 relative to the reference axis Y;
in the step 4), if the pitch angle α is not greater than a pitch angle threshold and the yaw angle θ is not greater than a yaw angle threshold, the initial axis Y2 is parallel to the reference axis Y, and if the pitch angle α is greater than the pitch angle threshold and the yaw angle θ is greater than the yaw angle threshold, the initial axis Y2 is not parallel to the reference axis Y;
in the step 5), when the three-coordinate measuring machine measures the initial axis Y1 of the first rotating member, the three-coordinate measuring machine obtains the pitch angle α ' and the yaw angle θ ' of the adjusted axis Y2 ' of the initial axis Y1 relative to the second rotating member;
in the step 6), if the pitch angle α 'is not greater than a pitch angle threshold and the yaw angle θ' is not greater than a yaw angle threshold, the initial axis Y1 is parallel to the axis Y2 ', and if the pitch angle α' is greater than the pitch angle threshold and the yaw angle θ 'is greater than the yaw angle threshold, the initial axis Y1 is not parallel to the axis Y2'.
The method for defining the reference axis Y in the step 2) comprises the following steps: the method comprises the steps of arranging a standard ball in a measuring space of a three-coordinate measuring machine, measuring a coordinate value S1 of the center position of the standard ball when the standard ball is at a first position by using the three-coordinate measuring machine, moving the standard ball to a second position along the Y direction of the three-coordinate measuring machine, measuring a coordinate value S2 of the center position of the standard ball when the standard ball is at the second position, and defining a connecting line of the center position of the standard ball at the first position and the center position of the standard ball at the second position as a reference axis Y.
High-precision center holes are machined in the front end face and the rear end face of the first rotating member, and in the step 5), the high-precision center holes in the front end face and the rear end face of the first rotating member are measured through the three-coordinate measuring machine to obtain the initial axis Y1.
A device for aligning the coaxial assembly of a rotating member based on the alignment method comprises the following steps:
a master control system;
the electric control system is in communication connection with the master control system;
the three-coordinate measuring machine is in communication connection with the master control system;
the first rotating part motion adjusting platform is used for adjusting a first rotating part, is arranged on a workbench of the three-coordinate measuring machine and is in communication connection with the electrical control system, and comprises a three-axis motion adjusting assembly capable of realizing linear motion of an X axis, a Y axis and a Z axis, a first angle adjusting assembly capable of realizing spatial angle adjustment and a first clamp for positioning the first rotating part, wherein the first clamp is arranged on the first angle adjusting assembly, and the first angle adjusting assembly is arranged on the three-axis motion adjusting assembly;
and the second rotating part motion adjusting platform is used for adjusting a second rotating part, is arranged on a workbench of the three-coordinate measuring machine and is in communication connection with the electrical control system, and comprises a second angle adjusting assembly capable of realizing space angle adjustment and a second clamp for positioning the second rotating part, and the second clamp is arranged on the second angle adjusting assembly.
The three-axis movement adjusting assembly comprises an X-axis linear module, a Y-axis linear module and a Z-axis linear module, the X-axis linear module is arranged on a sliding block of the Y-axis linear module, the Z-axis linear module is arranged on a sliding block of the X-axis linear module, and the first angle adjusting assembly is arranged on a sliding block of the Z-axis linear module.
The first angle adjusting assembly comprises a first rotary high-order precision sliding table module and a first angle measurement high-order precision sliding table module, the first angle measurement high-order precision sliding table module is arranged on a rotating part of the first rotary high-order precision sliding table module, and the first clamp is arranged on the first angle measurement high-order precision sliding table module;
the second angle adjusting assembly comprises a second rotary high-order precise sliding table module and a second angle measurement high-order precise sliding table module, the second angle measurement high-order precise sliding table module is arranged on a rotating part of the second rotary high-order precise sliding table module, and the second clamp is arranged on the second angle measurement high-order precise sliding table module.
The alignment device also comprises a standard ball which is arranged on the workbench of the three-coordinate measuring machine and can move along the Y axis of the three-coordinate measuring machine.
The first clamp comprises a positioning component and a fastening component, the positioning component is provided with a V-shaped positioning groove, the fastening component is arranged above the V-shaped positioning groove in a lifting manner so as to press the first rotating piece or separate from the first rotating piece, and the lifting direction of the fastening component is perpendicular to the axial direction of the first rotating piece; the second clamp has the same structure as the first clamp.
Compared with the prior art, the invention has the following advantages and positive effects:
by adopting the alignment method and the alignment device, the automatic alignment during coaxial assembly of the rotating member can be realized, the working efficiency of coaxial assembly of the rotating member is greatly improved, and the coaxial assembly precision is improved; meanwhile, the characteristics of a shaft and a hole on a workpiece are not required to be relied on, the universality of automatic coaxial assembly alignment is greatly improved, and the production cost is favorably reduced; the operation is simple and the performance is reliable.
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 introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a system architecture diagram of an alignment method for coaxial assembly of rotating members in an embodiment of the present invention;
FIG. 2 is a perspective view of an apparatus for aligning the coaxial assembly of rotating members in an embodiment of the present invention;
FIG. 3 is a perspective view of a first rotating member motion adjustment platform according to an embodiment of the present invention;
FIG. 4 is a perspective view of a second rotating member movement adjustment platform according to an embodiment of the present invention;
FIG. 5 is a perspective view of a first clamp with a first rotating member attached thereto in accordance with an embodiment of the present invention;
FIG. 6 is a perspective view of a support member of the first clamp in an embodiment of the present invention;
fig. 7 is a perspective view of a fixing bracket according to an embodiment of the present invention.
Reference numerals: 100. a three-coordinate measuring machine; 110. a work table; 200. a standard ball; 300. a first rotating member movement adjusting platform; 310. a three-axis motion adjustment assembly; 311. an X-axis linear module; 312. a Y-axis linear module; 313. a Z-axis linear module; 320. a first angle adjustment assembly; 321. a first rotary high-order precision sliding table module; 322. a first angle measurement type high-order precision sliding table module; 330. a first clamp; 331. a support member; 332. a fastening member; 333. a V-shaped positioning groove; 334. fixing a bracket; 335. fastening the threaded hole; 336. a first limit guide part; 337. a second limit guide part; 400. the second rotating part moves and adjusts the platform; 410. a second angle adjustment assembly; 411. a first rotary high-order precision sliding table module; 412. a first angle measurement type high-order precision sliding table module; 420. a second clamp; 500. fixing the bottom plate; 510. a handle; 600. and supporting the platform.
Detailed Description
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment of the invention relates to an alignment method for coaxial assembly of rotating members, which comprises the following steps:
1) Positioning a first rotating member and a second rotating member;
2) Defining a reference axis Y;
3) The master control system controls the three-coordinate measuring machine to work, and the three-coordinate measuring machine measures to obtain an initial axis Y2 of the second rotating member;
4) Judging whether the initial axis Y2 of the second rotating member is parallel to the reference axis Y, if so, executing the step 5), otherwise, adjusting the second rotating member until the adjusted axis Y2' is parallel to the reference axis Y, and then executing the step 5);
5) Measuring by using a three-coordinate measuring machine to obtain an initial axis Y1 of the first rotating member;
6) Judging whether the initial axis Y1 of the first rotating member is parallel to the adjusted axis Y2 ' of the second rotating member, if so, executing the step 7), otherwise, adjusting the first rotating member until the adjusted axis Y1 ' is parallel to the adjusted axis Y2 ' of the second rotating member, and then executing the step 7);
7) And adjusting the position of the first rotating member on the X-axis, the Y-axis and the Z-axis until the adjusted axis Y1 'of the first rotating member is collinear with the adjusted axis Y2' of the second rotating member.
Correspondingly, referring to fig. 1 to 4, the present embodiment further provides an apparatus for aligning when coaxially assembling a rotating member based on the above-mentioned alignment method, which includes a main control system, an electrical control system, a three-coordinate measuring machine 100, a standard ball 200, a first rotating member movement adjusting platform 300, and a second rotating member movement adjusting platform 400.
The electrical control system is in communication connection with the master control system, the three-coordinate measuring machine 100 is an existing three-coordinate measuring machine and is also in communication connection with the master control system, and the standard ball 200 is movably arranged on the workbench 110 of the three-coordinate measuring machine 100 and moves at least in a linear mode along the Y-axis direction of the three-coordinate measuring machine 100.
The first rotating member movement adjusting platform 300 is used for adjusting a first rotating member 1, is arranged on a workbench 110 of the three-coordinate measuring machine 100, is in communication connection with an electrical control system, and is controlled by the electrical control system to act, the first rotating member movement adjusting platform 300 comprises a three-axis movement adjusting assembly 310 capable of realizing linear movement of an X axis, a Y axis and a Z axis, a first angle adjusting assembly 320 capable of realizing spatial angle adjustment and a first clamp 330 for positioning the first rotating member 1, the first clamp 330 is arranged on the first angle adjusting assembly 320, and the first angle adjusting assembly 320 is arranged on the three-axis movement adjusting assembly 310. When the coaxial assembly is aligned, the first rotating member 1 is positioned on the first clamp 330, the first angle adjusting assembly 320 drives the first rotating member 1 to rotate to adjust the space angle, and the three-axis movement adjusting assembly 310 drives the first rotating member 1 to realize the position adjustment in the three directions of X, Y, Z.
And a second rotating member movement adjusting platform 400 for adjusting the second rotating member 2, which is arranged on the worktable 110 of the coordinate measuring machine 100 and is in communication connection with the electrical control system, and the action of the second rotating member movement adjusting platform is controlled by the electrical control system. The second rotating member movement adjusting platform 400 includes a second angle adjusting assembly 410 capable of adjusting the spatial angle and a second fixture 420 for positioning the second rotating member 2, the second fixture 420 is disposed on the second angle adjusting assembly 410, when the coaxial assembly is aligned, the second rotating member 2 is positioned on the second fixture 420, and the second angle adjusting assembly 410 drives the second rotating member 2 to rotate to adjust the spatial angle.
Further, the alignment apparatus of the present embodiment further includes a calibration ball 200 disposed on the coordinate measuring machine 100 and capable of moving along the Y-axis of the coordinate measuring machine 100. Specifically, the calibration ball 200 may be disposed on the slider of the Y-axis linear module of the three-axis motion adjustment assembly 310 or on the first fixture 330.
The method for defining the reference axis Y in the step 2) comprises the following steps: the standard ball 200 is movably arranged in the measuring space of the three-coordinate measuring machine 100, the coordinate value S1 of the center of the standard ball 200 is measured by the three-coordinate measuring machine 100 when the standard ball 200 is at the first position, the Y-axis linear module of the three-axis motion adjusting assembly 310 drives the standard ball 200 to the second position, the coordinate value S2 of the center of the standard ball 200 is measured when the standard ball 200 is at the second position, and a connecting line of the center of the first position standard ball 200 and the center of the second position standard ball 200 is defined as a reference axis Y.
The three-coordinate measuring machine is adopted to match the standard ball to obtain the reference axis Y, and the three-coordinate measuring machine has high measuring precision and high efficiency, so that the calibration precision and the calibration efficiency of the reference axis Y are high.
Further, when measuring the initial axis Y1 of the first rotating member 1 in step 5), firstly measuring a normal vector of one end face of the first rotating member 1 by using the three-coordinate measuring machine 100, and judging whether the normal vector is parallel to the axis Y2' of the second rotating member 2 after adjustment, if so, continuing to measure the initial axis Y1 of the first rotating member 1; if not, the first rotating member motion adjusting platform starts to act to adjust the first rotating member 1 until the normal vector of the first rotating member 1 after adjustment is parallel to the axis Y2' of the second rotating member 2 after adjustment, and then the initial axis Y1 of the first rotating member 1 is measured. Whether the normal vector of one end face of the first rotating member 1 is parallel to the axis Y2 'of the second rotating member 2 after adjustment is measured, whether the deviation of the initial position of the first rotating member 1 placed on the first clamp 330 is larger relative to the second rotating member 2 can be known, if the deviation is larger, the first rotating member 1 can be adjusted, so that the deviation of the initial axis Y1 of the first rotating member 1 and the axis Y2' of the second rotating member 2 after adjustment is reduced as much as possible, repeated detection and repeated adjustment processes are reduced, and the alignment efficiency is further improved.
Further, in the step 3), when the three-coordinate measuring machine 100 measures the initial axis Y2 of the second rotating member 2, it acquires the pitch angle α and yaw angle θ of the initial axis Y2 with respect to the reference axis Y; correspondingly, in step 4), if the pitch angle α is not greater than the pitch angle threshold and the yaw angle θ is not greater than the yaw angle threshold, it is determined that the initial axis Y2 is parallel to the reference axis Y, and if the pitch angle α is greater than the pitch angle threshold and the yaw angle θ is greater than the yaw angle threshold, it is determined that the initial axis Y2 is not parallel to the reference axis Y.
Similarly, in the step 5), when the three-coordinate measuring machine 100 measures the initial axis Y1 of the first rotating member 1, it obtains the pitch angle α ' and the yaw angle θ ' of the axis Y2 ' of the initial axis Y1 adjusted relative to the second rotating member 2; accordingly, in step 6), if the pitch angle α 'is not greater than the pitch angle threshold and the yaw angle θ' is not greater than the yaw angle threshold, it is determined that the initial axis Y1 is parallel to the axis Y2 ', and if the pitch angle α' is greater than the pitch angle threshold and the yaw angle θ 'is greater than the yaw angle threshold, it is determined that the initial axis Y1 is not parallel to the axis Y2'.
When the first high-precision center hole 11 is machined in the front end face and the rear end face of the first rotating member 1, and the second high-precision center hole 21 is also machined in the front end face and the rear end face of the second rotating member 2, only the first high-precision center hole 11 and the second high-precision center hole 21 need to have high coaxiality, and the end faces of the first rotating member 1 and the second rotating member 2 which are butted do not need to have high coaxiality, at this time, in step 5), the first high-precision center holes 11 in the front end face and the rear end face of the first rotating member 1 are measured by a three-coordinate measuring machine to obtain the initial axis Y1, and similarly, in step 3), the second high-precision center holes 21 in the front end face and the rear end face of the second rotating member 2 are measured by the three-coordinate measuring machine to obtain the initial axis Y2, and since the machining precision of the first high-precision center hole 11 and the second high-precision center hole 21 is high, the axis precision of the first rotating member 1 and the second rotating member 2 measured by taking the three-coordinate measuring machine as a reference is correspondingly high, and the axis precision is favorably improved in the alignment and the alignment precision.
After the first rotating member 1 and the second rotating member 2 are adjusted in place, the two rotating members can be coaxially assembled, for example, by welding the two rotating members by using an external welding device.
In the embodiment, a standard ball, a first rotating member motion adjusting platform and a second rotating member motion adjusting platform are integrated on the three-coordinate measuring machine, and the standard ball can move along the Y axis of the three-coordinate measuring machine. Firstly, respectively acquiring points of a first position of a standard ball and a second position moved along a three-coordinate Y axis by a three-coordinate measuring machine to obtain the coordinates of the centers of the two positions, connecting the centers of the two positions to obtain a reference axis, measuring the initial axis of a second rotating member at the initial position, controlling a second angle adjusting assembly by an electric control system to move to adjust the second rotating member to enable the initial axis to be parallel to the reference axis, measuring the initial axis of the first rotating member at the initial position, controlling a first angle adjusting assembly by the electric control system to adjust the first rotating member to enable the axis to be parallel to the axis of the adjusted second rotating member, finally controlling a three-axis movement adjusting assembly by the electric control system to adjust the positions of the first rotating member on an X axis, a Y axis and a Z axis until the axis of the first rotating member after final adjustment is coaxial with the axis of the second rotating member, thereby realizing the automatic alignment of the first rotating member and the second rotating member during the same-axis assembly, greatly improving the operation efficiency of coaxial assembly and improving the coaxial assembly accuracy; the characteristics of a shaft and a hole on a workpiece are not required to be relied on, the universality of automatic coaxial assembly alignment is greatly improved, and the production cost is favorably reduced; and the operation is simple and the performance is reliable.
Further, the three-axis motion adjusting assembly 310 includes an X-axis linear module 311, a Y-axis linear module 312, and a Z-axis linear module 313, the X-axis linear module 311 is disposed on a slider of the Y-axis linear module 312, the Z-axis linear module 313 is disposed on a slider of the X-axis linear module 311, and the first angle adjusting assembly 320 is disposed on a slider of the Z-axis linear module 313, so that the first angle adjusting assembly 320 can move along X, Y, Z with the three-axis motion adjusting assembly 310, and further the first clamp 330 can move along X, Y, Z with the three-axis motion adjusting assembly 310, and accordingly, the position of the first rotating member 1 on the first clamp 330 on the X, Y, Z axis can be adjusted, and in this embodiment, the three-axis motion adjusting assembly 310 is simple in structure and easy to obtain.
The first angle adjustment assembly 320 includes a first rotary high-order precision sliding table module 321 and a first angle measurement high-order precision sliding table module 322, the first angle measurement high-order precision sliding table module 322 is arranged on a rotating portion of the first rotary high-order precision sliding table module 321, and the first clamp 330 is arranged on the first angle measurement high-order precision sliding table module 322. Wherein, the first accurate slip table module 321 of gyration type high order drives first survey angle type high order accurate slip table module 322 and first rotating member 1 and swings in the horizontal plane, adjusts first rotating member 1 horizontal beat angle promptly, and first survey angle type high order accurate slip table module 322 drives first rotating member 1 and swings in vertical plane, adjusts first rotating member 1 vertical every single move angle promptly to first angle adjustment subassembly 320 can realize the adjustment of first rotating member 1 space angle.
Similarly, the second angle adjustment assembly 410 includes a second rotary high-order precision slide module 411 and a second angle measurement high-order precision slide module 412, the second angle measurement high-order precision slide module 412 is disposed on the rotating portion of the second rotary high-order precision slide module 411, and the second clamp 420 is disposed on the second angle measurement high-order precision slide module 412. Wherein, the accurate slip table module 411 of second rotation type high-order drives the accurate slip table module 412 of second angle type high-order and the second gyration piece 2 swings in the horizontal plane, adjusts the 2 horizontal beat angles of second gyration piece promptly, and the accurate slip table module 412 of second survey angle type high-order drives the swing of second gyration piece 2 in the vertical plane, adjusts the 2 vertical every single move angles of second gyration piece promptly to the adjustment of 2 space angles of second gyration piece can be realized to second angle adjustment subassembly 410.
Because the slider of the Y-axis linear module 312 of the three-axis motion adjustment assembly 310 can linearly move along the Y-axis, and the first clamp 330 is disposed on the first angle adjustment assembly 320, the first clamp 330 can also linearly move along the Y-axis along with the Y-axis linear module 312, in this embodiment, the calibration ball 200 is disposed on the slider of the Y-axis linear module 312 or disposed on the first clamp 330, and can both linearly move along the Y-axis. The standard ball 200 is arranged on the sliding block of the Y-axis linear module 312 or on the first clamp 330, so that a driving device for driving the standard ball 200 to linearly move along the Y-axis does not need to be separately arranged on the worktable 110, and when a reference axis formed by the movement of the standard ball 200 is measured, the standard ball 200 can be moved from the first position to the second position along the Y-axis by controlling the movement of the Y-axis linear module 312 by the electric control system, thereby facilitating the simplification of the whole machine mechanism and reducing the production cost.
Referring to fig. 5 to 7, the first clamp 330 includes a supporting member 331 and a fastening member 332, the supporting member 331 has a V-shaped positioning slot 333, the V-shaped positioning slot 333 is used for positioning the first rotating member 1, the fastening member 332 is liftably disposed above the V-shaped positioning slot 333 to press the first rotating member 1 or separate from the first rotating member 1, and a lifting direction of the fastening member 332 is perpendicular to an axial direction of the first rotating member 1; the second clamp 420 has the same structure as the first clamp 330. When the first rotating member 1 is horizontally placed in the V-shaped positioning groove 333, the circumferential outer side surface of the first rotating member is tangent to the inner wall of the V-shaped positioning groove 333 to realize positioning. When the fastening member 332 descends to abut on the first rotating member 1 in the radial direction of the first rotating member 1, it fastens the first rotating member 1 in the V-shaped positioning groove 333; when the fastening member 332 rises to be disengaged from the first rotating member 1, the fastening action on the first rotating member 1 is lost. The principle of clamping the second rotating member 2 by the second clamp 420 is the same as that described above, and is not described herein again.
In order to further improve the clamping reliability of the first rotating member 1 and the second rotating member 2, two fastening components 332 of the first clamp 330 are arranged along the axial direction of the first rotating member 1, and two fastening components of the second clamp 420 are arranged along the axial direction of the second rotating member 2, so that multi-point positioning is realized, the positioning reliability is high, and the workpiece position precision is high.
Taking the fastening member 332 of the first clamp 330 as an example, a fixing bracket 334 spanning the V-shaped positioning slot 333 is provided on the top of the supporting member 331, the fixing bracket 334 is located above the V-shaped positioning slot 333, a fastening screw hole 335 having a vertical axis is provided on the fixing bracket 334, and the fastening member 332 is a screw tap which is screw-fitted with the fastening screw hole 335. The spiral differential head is adopted as the fastening part 332, so that the precision is high, and the fastening force is easy to control.
Further, as shown in fig. 6 and 7, the fixing bracket 334 is a beam-type bracket in an inverted U shape, and both ends of the bottom of the fixing bracket are formed with first limit guide portions 336, the top surface of the supporting member 331 is correspondingly formed with second limit guide portions 337, the second limit guide portions 337 extend from one end of the supporting member 331 to the other end, and the extending direction thereof is parallel to the axial direction of the first rotating member 1, and the second limit guide portions 337 are in sliding guide fit with the first limit guide portions 336 and limit the vertical degree of freedom of the first limit guide portions 336. That is, under the sliding guide cooperation of the first limit guide portion 336 and the second limit guide portion 337, the fixing bracket 334 may move in a direction parallel to the axial direction of the first rotating member 1, and then the first rotating member 1 may be slid according to the length of the first rotating member 1 to select an appropriate position to fasten the first rotating member 1, thereby improving the reliability of positioning the first rotating member 1.
In this embodiment, the second position-limiting guide portions 337 are guide grooves penetrating both ends of the support member 331, the first position-limiting guide portions 336 correspond to guide blocks, and the guide grooves have a shape conforming to the contour of the guide blocks, and preferably have a smooth contour so as to avoid the jamming as much as possible. When the fixed bolster 334 is installed, the first spacing guiding part 336 at its both ends is embedded into the spacing guiding part 337 of second from the one end of the spacing guiding part 337 of second, then slide under the guiding action of the spacing guiding part 337 of second to behind the suitable position fasten first rotating member 1 by fastening component 332 can, fixed bolster 334 easy dismounting in this embodiment, the commonality is high.
Further, the first rotating member movement adjusting platform 300 and the second rotating member movement adjusting platform 400 are arranged on a fixing base plate 500 at intervals along the Y direction of the three-coordinate measuring machine 100 to form a whole body which is arranged on the workbench 110 of the three-coordinate measuring machine 100, so that the whole body can be loaded and unloaded conveniently, meanwhile, the fixing base plate 500 can adopt the existing fixing base plate, a positioning structure is arranged on the fixing base plate to position the first rotating member movement adjusting platform 300 and the second rotating member movement adjusting platform 400, and a handle 510 is arranged to facilitate taking and placing. The first rotating member movement adjusting platform 300 and the second rotating member movement adjusting platform 400 are spaced along the Y direction of the three-coordinate measuring machine 100, so that the first rotating member 1 and the second rotating member 2 thereon are aligned as much as possible in the initial state, thereby improving the coaxial assembly alignment efficiency.
Because second rotating member motion adjustment platform 400 lacks triaxial motion adjustment assembly 310 than first rotating member motion adjustment platform 300, then second rotating member 2 is located highly can be less than first rotating member 1, in order to make first rotating member 1 and second rotating member 2 initial condition as far as possible align equally, second rotating member motion adjustment platform 400 is established on a supporting platform 600 in this embodiment, supporting platform 600 is established on PMKD 500, the top surface and the bottom surface of supporting platform 600 are the horizontal plane, so that second rotating member 2 is located on same height as far as possible with first rotating member 1, convenient regulation.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An alignment method for coaxial assembly of rotating members, comprising the steps of:
1) Positioning a first rotating member and a second rotating member;
2) Defining a reference axis Y;
3) Measuring by using a three-coordinate measuring machine to obtain an initial axis Y2 of the second rotating member;
4) Judging whether the initial axis Y2 of the second rotating member is parallel to the reference axis Y, if so, executing the step 5), otherwise, adjusting the second rotating member until the adjusted axis Y2' is parallel to the reference axis Y, and then executing the step 5);
5) Measuring by using a three-coordinate measuring machine to obtain an initial axis Y1 of the first rotating member;
6) Judging whether the initial axis Y1 of the first rotating member is parallel to the adjusted axis Y2 ' of the second rotating member, if so, executing the step 7), otherwise, adjusting the first rotating member until the adjusted axis Y1 ' is parallel to the adjusted axis Y2 ' of the second rotating member, and then executing the step 7);
7) And adjusting the position of the first rotating member on the X-axis, the Y-axis and the Z-axis until the adjusted axis Y1 'of the first rotating member is collinear with the adjusted axis Y2' of the second rotating member.
2. The alignment method as claimed in claim 1,
in the step 5), a normal vector of one end face of the first rotating member is measured, whether the normal vector is parallel to the axis Y2 'of the second rotating member after adjustment is judged, if yes, the initial axis Y1 of the first rotating member is measured continuously, and if not, the first rotating member is adjusted until the normal vector of the end face of the first rotating member after adjustment is parallel to the axis Y2', and then the initial axis Y1 of the first rotating member is measured.
3. The alignment method as claimed in claim 1,
in the step 3), when the three-coordinate measuring machine measures an initial axis Y2 of a second rotating member, the three-coordinate measuring machine obtains a pitch angle alpha and a yaw angle theta of the initial axis Y2 relative to the reference axis Y;
in the step 4), if the pitch angle α is not greater than a pitch angle threshold and the yaw angle θ is not greater than a yaw angle threshold, the initial axis Y2 is parallel to the reference axis Y, and if the pitch angle α is greater than the pitch angle threshold and the yaw angle θ is greater than the yaw angle threshold, the initial axis Y2 is not parallel to the reference axis Y;
in the step 5), when the three-coordinate measuring machine measures the initial axis Y1 of the first rotating member, the three-coordinate measuring machine obtains the pitch angle α ' and the yaw angle θ ' of the adjusted axis Y2 ' of the initial axis Y1 relative to the second rotating member;
in the step 6), if the pitch angle α 'is not greater than a pitch angle threshold and the yaw angle θ' is not greater than a yaw angle threshold, the initial axis Y1 is parallel to the axis Y2 ', and if the pitch angle α' is greater than the pitch angle threshold and the yaw angle θ 'is greater than the yaw angle threshold, the initial axis Y1 is not parallel to the axis Y2'.
4. The alignment method as claimed in claim 1,
the method for defining the reference axis Y in the step 2) comprises the following steps: the method comprises the steps of arranging a standard ball in a measuring space of a three-coordinate measuring machine, measuring a coordinate value S1 of the center position of the standard ball when the standard ball is at a first position by using the three-coordinate measuring machine, moving the standard ball to a second position along the Y direction of the three-coordinate measuring machine, measuring a coordinate value S2 of the center position of the standard ball when the standard ball is at the second position, and defining a connecting line of the center position of the standard ball at the first position and the center position of the standard ball at the second position as a reference axis Y.
5. The alignment method as claimed in claim 1,
high-precision center holes are machined in the front end face and the rear end face of the first rotating member, and in the step 5), the high-precision center holes in the front end face and the rear end face of the first rotating member are measured through the three-coordinate measuring machine to obtain the initial axis Y1.
6. An apparatus for aligning a coaxial assembly of rotating members based on the aligning method of any one of claims 1 to 5, comprising:
a master control system;
the electric control system is in communication connection with the master control system;
the three-coordinate measuring machine is in communication connection with the master control system;
the first rotating part motion adjusting platform is used for adjusting a first rotating part, is arranged on a workbench of the three-coordinate measuring machine and is in communication connection with the electrical control system, and comprises a three-axis motion adjusting assembly capable of realizing linear motion of an X axis, a Y axis and a Z axis, a first angle adjusting assembly capable of realizing spatial angle adjustment and a first clamp for positioning the first rotating part, wherein the first clamp is arranged on the first angle adjusting assembly, and the first angle adjusting assembly is arranged on the three-axis motion adjusting assembly;
and the second rotating part motion adjusting platform is used for adjusting a second rotating part, is arranged on a workbench of the three-coordinate measuring machine and is in communication connection with the electrical control system, and comprises a second angle adjusting assembly capable of realizing space angle adjustment and a second clamp for positioning the second rotating part, and the second clamp is arranged on the second angle adjusting assembly.
7. The apparatus of claim 6,
triaxial motion adjustment subassembly includes X axle sharp module, Y axle sharp module and Z axle sharp module, X axle sharp module is established on the slider of Y axle sharp module, Z axle sharp module is established on the slider of X axle sharp module, first angle adjustment subassembly is established on the slider of Z axle sharp module.
8. The apparatus of claim 6,
the first angle adjusting assembly comprises a first rotary high-order precision sliding table module and a first angle measurement high-order precision sliding table module, the first angle measurement high-order precision sliding table module is arranged on a rotating part of the first rotary high-order precision sliding table module, and the first clamp is arranged on the first angle measurement high-order precision sliding table module;
the second angle adjusting assembly comprises a second rotary high-order precise sliding table module and a second angle measurement high-order precise sliding table module, the second angle measurement high-order precise sliding table module is arranged on a rotating part of the second rotary high-order precise sliding table module, and the second clamp is arranged on the second angle measurement high-order precise sliding table module.
9. The apparatus of claim 6,
the alignment device also comprises a standard ball which is arranged on the workbench of the three-coordinate measuring machine and can move along the Y axis of the three-coordinate measuring machine.
10. The apparatus of claim 6,
the first clamp comprises a positioning component and a fastening component, the positioning component is provided with a V-shaped positioning groove, the fastening component is arranged above the V-shaped positioning groove in a lifting manner so as to press the first rotating piece or separate from the first rotating piece, and the lifting direction of the fastening component is perpendicular to the axial direction of the first rotating piece; the second clamp has the same structure as the first clamp.
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| CN202210759167.0A CN115255906A (en) | 2022-06-30 | 2022-06-30 | Alignment method and device for coaxial assembly of rotating member |
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| CN202210759167.0A CN115255906A (en) | 2022-06-30 | 2022-06-30 | Alignment method and device for coaxial assembly of rotating member |
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