CN210412699U - High-precision positioning and drilling device for realizing residual stress measurement - Google Patents
High-precision positioning and drilling device for realizing residual stress measurement Download PDFInfo
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- CN210412699U CN210412699U CN201921411026.XU CN201921411026U CN210412699U CN 210412699 U CN210412699 U CN 210412699U CN 201921411026 U CN201921411026 U CN 201921411026U CN 210412699 U CN210412699 U CN 210412699U
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Abstract
The utility model discloses a realize residual stress measuring high accuracy location and drilling equipment, the one end of column spinner with the bottom plate rotates to be connected, the other end of column spinner with roating seat fixed connection, the cross section of roating seat is the L type, the piece that awaits measuring regulate and control the subassembly with bottom plate fixed connection, and be located the upper end of bottom plate, the laser locating component with the drilling subassembly all with roating seat fixed connection, just the laser locating component with be 90 contained angles between the drilling subassembly. The high-precision positioning and drilling device for measuring the residual stress has the advantages of high measurement precision, simple structure and simple and easy operation.
Description
Technical Field
The utility model relates to a machine part residual stress measures the field, especially relates to a realize residual stress measurement's high accuracy location and drilling equipment.
Background
With the development of electronic products towards miniaturization, multi-functionalization and high integration, the demand for new packaging technology is increasing day by day, and the new packaging technology is required to have more I/O pin numbers, smaller pin pitches, smaller dimensions, higher electrical performance and thermal performance, and accordingly the requirement for the reliability is higher and higher. In the process of assembling an electronic device, a welding spot undergoes a solid-state to molten and condensed process in a reflow soldering process, small internal stress, namely residual stress after soldering, is generated and accumulated in the welding spot after soldering is completed, and the residual stress causes damage to the welding spot, which can propagate and converge to form a macrocrack in the subsequent production process and product use process, directly causes failure of the device or causes moisture absorption, interface delamination and indirect failure of other materials. In order to solve the above problems, a high-precision positioning and drilling device for measuring residual stress, which can realize high-precision measurement, has a simple structure and is easy to operate, is needed, so as to prevent the residual stress from damaging the welding spot.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model aims to provide a can realize that high accuracy is measured, simple structure, operation are simple and easy to residual stress measuring high accuracy location and drilling equipment.
In order to achieve the purpose, the high-precision positioning and drilling device for realizing residual stress measurement comprises a supporting component, a regulating component for a piece to be measured, a laser positioning component and a drilling component;
the supporting assembly comprises a bottom plate, a rotating column and a rotating seat, one end of the rotating column is rotatably connected with the bottom plate, the other end of the rotating column is fixedly connected with the rotating seat, the cross section of the rotating seat is L-shaped, the regulating and controlling assembly of the part to be measured is fixedly connected with the bottom plate and is positioned at the upper end of the bottom plate, the laser positioning assembly and the drilling assembly are fixedly connected with the rotating seat, and a 90-degree included angle is formed between the laser positioning assembly and the drilling assembly;
the light beam emitted by the laser positioning component coincides with a drilling target point of a sample piece to be detected on the regulation and control component to be detected, the rotating column is rotated by 90 degrees, the drilling component moves to the sample piece to be detected, and a point where the central line of the drilling piece on the drilling component intersects with the sample piece to be detected is the drilling target point.
The laser positioning assembly comprises a support frame, a high-contrast flattening objective lens, a lens base, an eyepiece barrel, a wide-angle eyepiece, a laser barrel and a laser;
the support frame with roating seat fixed connection, high contrast blunt objective with support frame fixed connection, and be located the below of support frame, the microscope base with support frame fixed connection, and be located the top of support frame, the eyepiece barrel with microscope base fixed connection, and be located the top of microscope base, the wide angle eyepiece with eyepiece barrel fixed connection, and be located the eyepiece barrel is kept away from the one end of microscope base, the laser section of thick bamboo with microscope base fixed connection to be located the top of microscope base, and be located one side of eyepiece barrel, the laser instrument with laser section of thick bamboo fixed connection, and be located the laser section of thick bamboo is kept away from one side of microscope base.
The distance between the axial line of the rotating column and the light beam emitted by the laser is equal to the distance between the axial line of the rotating column and the drilling central line of the sample piece to be tested.
The cross section of the lens base is of a fan-shaped structure, the eyepiece barrel is positioned on the inclined plane of the lens base, and the eyepiece barrel and the lens base are obliquely arranged.
Wherein, the drilling subassembly is including installation piece, handle, driving piece, holder and drill bit, the installation piece with roating seat sliding connection, the handle with installation piece fixed connection to be located the lateral wall of installation piece, the driving piece with installation piece fixed connection, and be located the installation piece is kept away from the one end of roating seat, the drill bit passes through the holder with the connection can be dismantled to the output of driving piece.
The laser beam emitted by the laser coincides with a drilling target point of a sample piece to be detected on the regulation and control assembly to be detected, the rotating column is rotated by 90 degrees, the drilling assembly moves to the sample piece to be detected, and a point where the central line of the drill bit intersects with the sample piece to be detected is the drilling target point.
The regulating and controlling assembly of the to-be-detected sample piece comprises a supporting piece, an X-axis spiral micrometer caliper and a Y-axis spiral micrometer caliper, wherein the supporting piece is fixedly connected with the bottom plate and is positioned above the bottom plate, and the X-axis spiral micrometer caliper and the Y-axis spiral micrometer caliper are fixedly connected with the bottom plate and are respectively positioned in the radial direction and the axial direction of the to-be-detected sample piece.
Wherein, the outer surface wall of the rotating column is provided with scale marks.
The support assembly further comprises a fixing ring, the fixing ring is in threaded connection with the bottom plate and is located at the connection position of the rotary column and the bottom plate.
The beneficial effects of the utility model are embodied in: the light beam emitted by the laser positioning component coincides with a drilling target point of a sample piece to be detected on the regulation and control component to be detected, then the rotating column is rotated by 90 degrees, the drilling component moves to the sample piece to be detected, the intersection point of the central line of the drilling piece on the drilling component and the sample piece to be detected is the drilling target point, then the drilling component is utilized to radially drill the drilling target point, the stress at the position is released after the drilling is finished, the residual stress is redistributed, meanwhile, a certain releasing strain is generated around the drilling position, and the magnitude of the releasing strain corresponds to the released stress. The released strain measured by the dynamic strain gauge is transmitted to the PC, and the residual stress of the measuring point can be determined by deducing a corresponding calculation formula by utilizing an elasticity theory, so that the high-precision positioning of the residual stress measurement and the high-precision measurement of the drilling device are realized, and the high-precision positioning and drilling device for measuring the residual stress has the effects of high measurement precision, simple structure and simplicity in operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 creative efforts.
Fig. 1 is the utility model discloses a realize that residual stress measures's high accuracy location and drilling equipment's overall structure sketch map.
Fig. 2 is a schematic structural diagram of the drilling assembly of the present invention.
Fig. 3 is the utility model discloses a realize residual stress measuring's high accuracy location and drilling equipment's schematic structure diagram.
Fig. 4 is a schematic structural diagram of the laser positioning assembly of the present invention.
Fig. 5 is a schematic structural diagram of the regulating and controlling assembly of the device under test of the present invention.
100-high-precision positioning and drilling device for realizing residual stress measurement, 10-supporting component, 11-bottom plate, 12-rotating column, 13-rotating seat, 14-fixing ring, 20-regulating component of the component to be measured, 21-supporting component, 22-X axis screw micrometer caliper, 23-Y axis screw micrometer caliper, 30-laser positioning component, 31-supporting frame, 32-high contrast eliminating objective lens, 33-lens seat, 34-eyepiece barrel, 35-wide-angle eyepiece, 36-laser barrel, 37-laser, 40-drilling component, 41-mounting block, 42-handle, 43-driving component, 44-clamping component and 45-drill bit.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 5, the present invention provides a high precision positioning and drilling device 100 for measuring residual stress, which comprises a supporting component 10, a regulating component 20 for a to-be-measured member, a laser positioning component 30 and a drilling component 40;
the supporting assembly 10 comprises a bottom plate 11, a rotating column 12 and a rotating base 13, one end of the rotating column 12 is rotatably connected with the bottom plate 11, the other end of the rotating column 12 is fixedly connected with the rotating base 13, the cross section of the rotating base 13 is L-shaped, the regulating and controlling assembly 20 for the piece to be measured is fixedly connected with the bottom plate 11 and is positioned at the upper end of the bottom plate 11, the laser positioning assembly 30 and the drilling assembly 40 are fixedly connected with the rotating base 13, and an included angle of 90 degrees is formed between the laser positioning assembly 30 and the drilling assembly 40;
the light beam emitted by the laser positioning component 30 coincides with the drilling target point of the sample piece to be measured on the regulating component to be measured, the rotating column 1290 degrees is rotated, the drilling component 40 moves to the sample piece to be measured, and the point where the center line of the drilling component on the drilling component 40 intersects with the sample piece to be measured is the drilling target point.
In this embodiment, the bottom plate 11 supports the regulating and controlling component 20 for the sample to be measured, the laser positioning component 30 and the drilling component 40, the sample to be measured is firstly fixed on the bottom plate 11 through the regulating and controlling component 20 for the sample to be measured, then the rotating column is rotated, the rotating base 13 drives the laser positioning component 30 to rotate to the position of the sample to be measured, then the laser positioning component 30 is started to emit laser beams to the sample to be measured, and simultaneously the regulating and controlling component 20 for the sample to be measured gradually adjusts the sample to be measured to a proper position, so that the light beams coincide with the drilling target point of the sample to be measured, because the cross section of the rotating base 13 is L-shaped, a 90-degree included angle is formed between the laser positioning component 30 and the drilling component 40, the rotating column 12 is rotated, and after the rotating by 90 degrees, the drilling component 40 moves to the sample to be measured, the intersection point of the central line of the drilling piece on the drilling component 40 and the sample piece to be tested is the drilling target point. And then the drilling assembly 40 acts to drill the drilling target point, the stress at the drilling target point is released after the drilling is finished, the residual stress is redistributed, and meanwhile, a certain releasing strain is generated around the drilling target point, wherein the magnitude of the releasing strain corresponds to the released stress. Then the release strain measured by the dynamic strain gauge is transmitted to a PC, and a corresponding calculation formula is deduced by using an elasticity theory, so that the residual stress of the measuring point can be determined, and the obtained effect is as follows: under the background of modern manufacturing industry with huge output, the economy, efficiency and ergonomics are taken into consideration as first factors, the measurement of residual stress is accurately realized by designing a high-precision positioning and drilling device, and meanwhile, the device has the advantages of simple structure, simplicity and easiness in operation, low manufacturing cost and certain application prospect.
Further, the laser positioning assembly 30 includes a support frame 31, a high-contrast flattening objective lens 32, a lens holder 33, an eyepiece barrel 34, a wide-angle eyepiece 35, a laser barrel 36 and a laser 37;
In this embodiment, laser instrument 37 is adjustable focus machine vision laser instrument 37, wide angle eyepiece 35 is 10 times high eyepoint wide angle eyepiece 35 the column spinner 12 drives laser positioning component 30 rotates to the sample spare place that awaits measuring after, laser instrument 37 along 36 emission beams of laser barrel, the operator is through arranging in eyepiece barrel 34 wide angle eyepiece 35 with the high contrast is smooth to eliminate objective 32 and is observed the target point and the light beam of the sample spare that awaits measuring, and under the cooperation of the regulation and control subassembly 20 of awaiting measuring for the light beam with by the coincidence of sample spare drilling target point. Wherein the lens base 33 and the supporting frame 31 support the main structure.
Further, the distance between the axial line of the rotating column 12 and the light beam emitted by the laser 37 is equal to the distance between the axial line of the rotating column 12 and the drilling center line of the sample piece to be measured.
In this embodiment, through the axial line of column spinner 12 with distance between the light beam that laser instrument 37 sent equals the setting of the distance between the axial line of column spinner 12 and the drilling central line of the appearance spare that awaits measuring can make the appearance spare that awaits measuring arrange in when on the bottom plate 11, the light beam that laser instrument 37 sent can be accurate fall into to the appearance spare that awaits measuring on, even get the light beam and by the coincidence of appearance spare drilling target point, need not to utilize the position of the appearance spare that awaits measuring regulation and control subassembly 20 adjustment awaits measuring can simplify operator's operating procedure for the operation becomes simpler and easier.
Further, the cross section of the lens base 33 is a fan-shaped structure, the eyepiece barrel 34 is located on the inclined plane of the lens base 33, and the eyepiece barrel 34 and the lens base 33 are arranged in an inclined manner.
In this embodiment, the cross section of the lens base 33 is a fan-shaped structure, and the eyepiece barrel 34 is located on the inclined plane of the lens base 33, and the eyepiece barrel 34 is in the setting with a certain inclination angle on the lens base 33, which can facilitate the observation of the wide-angle eyepiece 35 and the target point and the light beam of the high-contrast extinction objective lens 32 to the sample to be measured.
Further, the drilling assembly 40 includes a mounting block 41, a handle 42, a driving member 43, a clamping member 44 and a drill bit 45, the mounting block 41 is slidably connected to the rotary base 13, the handle 42 is fixedly connected to the mounting block 41 and is located on a side wall of the mounting block 41, the driving member 43 is fixedly connected to the mounting block 41 and is located at an end of the mounting block 41 far away from the rotary base 13, and the drill bit 45 is detachably connected to an output end of the driving member 43 through the clamping member 44.
The light beam emitted by the laser 37 coincides with a drilling target point of a sample to be measured on the regulating and controlling assembly to be measured, the rotating column 1290 degrees is rotated, the drilling assembly 40 moves to the sample to be measured, and a point where the center line of the drill bit 45 intersects with the sample to be measured is the drilling target point.
In this embodiment, through roating seat 13 drives laser positioning component 30 rotates to the appearance position that awaits measuring, then starts laser instrument 37 is to the appearance transmission laser beam that awaits measuring, utilizes simultaneously an regulation and control subassembly 20 that awaits measuring gradually adjusts the appearance that awaits measuring until suitable position to make light beam and the coincidence of the appearance drilling target point that is surveyed, because the cross section of roating seat 13 is the L type, laser positioning component 30 with be 90 contained angles between drilling component 40, consequently will column spinner 12 rotates, and rotates 90 back, drilling component 40 removes to the appearance piece that awaits measuring, the point that the central line of the drilling piece on drilling component 40 and the appearance piece that awaits measuring intersect is drilling target point. The driving part 43 is a motor, after it is determined that the drilling assembly 40 moves to a sample piece to be tested, and a point where a center line of the drilling piece on the drilling assembly 40 intersects with the sample piece to be tested is a drilling target point, the driving part 43 is started to rotate, so that the drill bit 45 clamped by the clamping part 44 is driven to rotate, the handle 42 is pulled downwards, meanwhile, the mounting block 41 is arranged on the rotary seat 13 and moves towards the bottom plate 11, and the drill bit 45 drills the sample piece to be tested.
Further, the regulating and controlling assembly 20 for the sample to be measured comprises a supporting member 21, an X-axis micrometer caliper 22 and a Y-axis micrometer caliper 23, wherein the supporting member 21 is fixedly connected with the bottom plate 11 and is located above the bottom plate 11, and the X-axis micrometer caliper 22 and the Y-axis micrometer caliper 23 are fixedly connected with the bottom plate 11 and are respectively located in the radial direction and the axial direction of the sample to be measured.
In this embodiment, the supporting member 21 supports the sample to be measured, and when the position of the sample to be measured needs to be adjusted, the X-axis micrometer caliper 22 can be used to adjust the displacement of the sample to be measured in the radial direction (X-axis direction), and the Y-axis micrometer caliper 23 can be used to adjust the displacement of the sample to be measured in the axial direction (Y-axis direction), so that the beam emitted by the laser 37 coincides with the drilling target point of the sample to be measured.
Further, the outer surface wall of the rotary column 12 has scale marks.
In this embodiment, when the drill 45 drills a sample to be measured, an operator can control the drilling depth through the scale line on the rotary column 12, which brings convenience to the operator.
Further, the support assembly 10 further includes a fixing ring 14, and the fixing ring 14 is screwed with the bottom plate 11 and is located at the connection position of the rotary column 12 and the bottom plate 11.
In this embodiment, the fixing ring 14 can fix the connection between the rotary column 12 and the bottom plate 11 more firmly.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. A high-precision positioning and drilling device for measuring residual stress is characterized in that,
the device comprises a supporting component, a regulating component of a piece to be measured, a laser positioning component and a drilling component;
the supporting assembly comprises a bottom plate, a rotating column and a rotating seat, one end of the rotating column is rotatably connected with the bottom plate, the other end of the rotating column is fixedly connected with the rotating seat, the cross section of the rotating seat is L-shaped, the regulating and controlling assembly of the part to be measured is fixedly connected with the bottom plate and is positioned at the upper end of the bottom plate, the laser positioning assembly and the drilling assembly are fixedly connected with the rotating seat, and a 90-degree included angle is formed between the laser positioning assembly and the drilling assembly;
the light beam emitted by the laser positioning component coincides with a drilling target point of a sample piece to be detected on the regulation and control component to be detected, the rotating column is rotated by 90 degrees, the drilling component moves to the sample piece to be detected, and a point where the central line of the drilling piece on the drilling component intersects with the sample piece to be detected is the drilling target point.
2. High-precision positioning and drilling device for residual stress measurement according to claim 1,
the laser positioning assembly comprises a support frame, a high-contrast flattening objective lens, a lens base, an eyepiece barrel, a wide-angle eyepiece, a laser barrel and a laser;
the support frame with roating seat fixed connection, high contrast blunt objective with support frame fixed connection, and be located the below of support frame, the microscope base with support frame fixed connection, and be located the top of support frame, the eyepiece barrel with microscope base fixed connection, and be located the top of microscope base, the wide angle eyepiece with eyepiece barrel fixed connection, and be located the eyepiece barrel is kept away from the one end of microscope base, the laser section of thick bamboo with microscope base fixed connection to be located the top of microscope base, and be located one side of eyepiece barrel, the laser instrument with laser section of thick bamboo fixed connection, and be located the laser section of thick bamboo is kept away from one side of microscope base.
3. High-precision positioning and drilling device for residual stress measurement according to claim 2,
the distance between the axial line of the rotating column and the light beam emitted by the laser is equal to the distance between the axial line of the rotating column and the drilling central line of the sample piece to be tested.
4. High-precision positioning and drilling device for residual stress measurement according to claim 3,
the cross section of the lens base is of a fan-shaped structure, the eyepiece sleeve is positioned on the inclined plane of the lens base, and the eyepiece sleeve and the lens base are obliquely arranged.
5. High-precision positioning and drilling device for residual stress measurement according to claim 3,
the drilling subassembly is including installation piece, handle, driving piece, holder and drill bit, the installation piece with roating seat sliding connection, the handle with installation piece fixed connection to be located the lateral wall of installation piece, the driving piece with installation piece fixed connection, and be located the installation piece is kept away from the one end of roating seat, the drill bit passes through the holder with the connection can be dismantled to the output of driving piece.
6. A high-precision positioning and drilling device for residual stress measurement according to claim 5,
the light beam emitted by the laser coincides with a drilling target point of a sample piece to be detected on the regulating and controlling assembly to be detected, the rotating column is rotated by 90 degrees, the drilling assembly moves to the sample piece to be detected, and the intersection point of the central line of the drill bit and the sample piece to be detected is the drilling target point.
7. High-precision positioning and drilling device for residual stress measurement according to claim 6,
the regulating and controlling assembly for the sample piece to be detected comprises a supporting piece, an X-axis screw micrometer caliper and a Y-axis screw micrometer caliper, wherein the supporting piece is fixedly connected with the bottom plate and is positioned above the bottom plate, and the X-axis screw micrometer caliper and the Y-axis screw micrometer caliper are fixedly connected with the bottom plate and are respectively positioned in the radial direction and the axial direction of the sample piece to be detected.
8. High-precision positioning and drilling device for residual stress measurement according to any of claims 1 to 7,
the outer surface wall of the rotating column is provided with scale marks.
9. High-precision positioning and drilling device for residual stress measurement according to claim 1,
the support assembly further comprises a fixing ring, and the fixing ring is in threaded connection with the bottom plate and is located at the connection position of the rotating column and the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921411026.XU CN210412699U (en) | 2019-08-28 | 2019-08-28 | High-precision positioning and drilling device for realizing residual stress measurement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921411026.XU CN210412699U (en) | 2019-08-28 | 2019-08-28 | High-precision positioning and drilling device for realizing residual stress measurement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449635A (en) * | 2019-08-28 | 2019-11-15 | 桂林电子科技大学 | Realize the high accuracy positioning and drilling equipment of residual stress measurement |
| CN113579854A (en) * | 2021-07-21 | 2021-11-02 | 安庆中船动力配套有限公司 | Automatic correction system based on diesel engine connecting rod machining machine tool |
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2019
- 2019-08-28 CN CN201921411026.XU patent/CN210412699U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110449635A (en) * | 2019-08-28 | 2019-11-15 | 桂林电子科技大学 | Realize the high accuracy positioning and drilling equipment of residual stress measurement |
| CN113579854A (en) * | 2021-07-21 | 2021-11-02 | 安庆中船动力配套有限公司 | Automatic correction system based on diesel engine connecting rod machining machine tool |
| CN113579854B (en) * | 2021-07-21 | 2022-07-29 | 安庆中船动力配套有限公司 | Automatic correction system based on diesel engine connecting rod machining machine tool |
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Assignee: Guilin Gaopu Electronic Technology Co.,Ltd. Assignor: GUILIN University OF ELECTRONIC TECHNOLOGY Contract record no.: X2022450000412 Denomination of utility model: High precision positioning and drilling device for residual stress measurement Granted publication date: 20200428 License type: Common License Record date: 20221227 |