CN213515345U - Metering detection device taking axis of deep and long blind hole as reference - Google Patents
Metering detection device taking axis of deep and long blind hole as reference Download PDFInfo
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- CN213515345U CN213515345U CN202022645920.2U CN202022645920U CN213515345U CN 213515345 U CN213515345 U CN 213515345U CN 202022645920 U CN202022645920 U CN 202022645920U CN 213515345 U CN213515345 U CN 213515345U
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Abstract
The utility model discloses an use measurement detection device of deep and long blind hole axis as benchmark, including three coordinate measuring machine and tesastar gauge head (8), its characterized in that, connect gradually below three coordinate measuring machine's Z axle (3) first switching seat (5), second switching seat (7) and tesastar gauge head, the one end of one side demountable installation extension measuring stick (10) of first switching seat, opposite side installation counterweight rod (4), the other end of extension measuring stick is through surveying seat (11) installation star measuring needle (12). The utility model discloses can realize the three-coordinate measuring machine to the measurement of dark long blind hole, and measurement accuracy is high.
Description
Technical Field
The utility model relates to a three-coordinate measuring machine, especially a use measurement detection device of deep and long blind hole axis as the benchmark.
Background
The aircraft landing gear system is one of important functional parts and plays roles in safe takeoff, landing and taxiing of the aircraft. The main load bearing structure spare of modern aircraft undercarriage selects the whole forging machine-shaping of high-quality ultrahigh strength steel material basically, especially along with the development of domestic large-scale civil aircraft, the general greatly increased of civil aircraft undercarriage owner load bearing structure spare specification, consider factors such as structure weight, life-span and intensity, the appearance of main load bearing structure spare tends to complicated irregular characteristic surface structure, the space has the multi-angle, high accuracy size and geometric tolerances requirement, and generally have the one end on the main load bearing structure spare and seal the deep long blind hole that the degree of depth reaches 1280mm, and carry out the design of main load bearing structure spare full factor size chain based on the axis of deep long blind hole.
Generally, product designers of complex structural component products consider the manufacturability of machining in the design stage, the shapes of the complex structural component products are designed into regular cylinders, the measuring and detecting of the machined workpieces with the regular cylinder structures adopt a standard three-coordinate measuring machine and a conventional standard measuring head (tesastar measuring head) to detect inner holes or outer circle benchmarks at two ends of the workpieces, a common axis and a coordinate system are established, the workpieces can be measured, and the problems of interference, insufficient stroke and the like do not exist. However, as shown in fig. 1, in the design stage of the main bearing structural member of the aircraft landing gear with the irregular appearance characteristic surface structure, a product designer selects the design size reference on the axis B of the deep and long blind hole a, which means that before the main bearing structural member of the aircraft landing gear is measured and detected, the deep and long blind hole is measured and detected by using a three-coordinate measuring machine, a common axis is obtained, a measurement coordinate system is established, and then the axis of the deep and long blind hole is used as the common axis, and other sizes are detected by using a standard measuring head.
The measuring rod of the existing three-coordinate measuring machine cannot be used for measuring a deep and long blind hole with the depth of 1280mm, so the three-coordinate measuring machine needs to be improved.
Disclosure of Invention
The utility model aims to solve the technical problem that can not be used for the not enough of deep and long blind hole measurement to current three-coordinate measuring machine and standard gauge head, provide one kind and use deep and long blind hole axis as the measurement detection device of benchmark.
For solving the technical problem, the utility model provides an use measurement detection device of deep and long blind hole axis as benchmark, including three-coordinate measuring machine and tesastar gauge head, connect gradually below the Z axle of three-coordinate measuring machine first switching seat, second switching seat tesastar gauge head, one side demountable installation extension measuring stick's of first switching seat one end, opposite side installation counterweight rod, the other end of extension measuring stick passes through the star measuring pin of base installation.
The utility model discloses a set up and add first switching seat between the Z axle of three coordinate measuring machine and tesastar gauge head to at one side demountable installation extension measuring stick and star measuring needle of first switching seat, opposite side installation counterweight rod makes the utility model discloses can be used to the measurement location of dark long blind hole, and then establish and use dark long blind hole axis as the measurement coordinate system of benchmark, and after demolising extension measuring stick and counterweight rod, all the other sizes that use dark long blind hole axis as the benchmark on usable tesastar gauge head to the work piece measure and detect.
For the convenience of detaching the lengthened measuring rod, a sleeve mounting hole is horizontally formed in the first adapter, a sleeve is detachably mounted in the sleeve mounting hole, and one end of the lengthened measuring rod is detachably mounted in the sleeve.
In order to facilitate the fixed connection of the sleeve on the first adapter, a clamping groove is formed in the sleeve mounting hole, a clamping table is correspondingly arranged on the periphery of the sleeve, and the clamping table is clamped into the clamping groove. The clamping groove is provided with a threaded through hole penetrating through the first adapter, and a jacking screw used for propping against the sleeve is arranged in the threaded through hole.
For the convenience of connection and fixation of the lengthened measuring rod, the connecting end of the telescopic measuring rod is provided with an axial boss, a first fixing hole is formed in the axial boss, a second fixing hole is formed in the end portion of the lengthened measuring rod, the first fixing hole is aligned with the second fixing hole, and a fixing pin is inserted in the first fixing hole and the second fixing hole.
In order to facilitate further connection and fixation of the sleeve, a radial boss is arranged at the connecting end of the measuring rod of the sleeve, a first positioning hole is formed in the radial boss, a second positioning hole is formed in the first adapter, the first positioning hole is aligned with the second positioning hole, and a positioning pin is inserted into the first positioning hole and the second positioning hole.
In order to eliminate the influence of the rod weight on the measurement precision and meet the strength requirement, the lengthened measuring rod is in a frustum shape, the sleeve is a carbon fiber sleeve, and the lengthened measuring rod is a carbon fiber measuring rod.
In order to measure the deep and long blind holes conveniently, the overhanging length of the lengthened measuring rod is 1280 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the utility model discloses an add first switching seat in three-coordinate measuring machine's Z axle below to install extension measuring stick on first switching seat, realized the measurement of deep and long blind hole, and established the coordinate system with deep and long blind hole axis as the benchmark, realized taking deep and long blind hole axis as the benchmark the measurement detection of the geometric dimensions of irregular appearance complex construction and form and position tolerance etc. full key element characteristic;
2) the utility model realizes the measurement and detection of the diameters and geometrical characteristics of the stepped blind hole and the non-stepped blind hole with the maximum depth of 1280mm and the diameter of more than or equal to phi 70;
3) the utility model improves the measurement precision by adding the balance weight rod to balance the gravity of the lengthened measuring rod;
4) the utility model discloses simple structure has simplified the measurement of the work piece that uses the deep and long blind hole as the benchmark axis and has detected the flow, has improved work efficiency and quality greatly, has improved detection means and ability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, 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 simplified diagram of a workpiece being measured with a deep and long blind via.
Fig. 2 is a two-dimensional structure diagram of the present invention.
Fig. 3 is an exploded view of the present invention.
Fig. 4 is a perspective view of the first adapter of the present invention.
Fig. 5 is a perspective view of the sleeve of the present invention.
Fig. 6 is a state diagram of the present invention for detecting deep and long blind holes.
In the figure:
a, deep and long blind holes; a B axis;
1 deep hole measuring rod system; 2, a workpiece to be detected; 3Z axis; 4 a weight lever; 5, a first adapter and 6 jacking screws; 7 a second adapter; 8 tesastar probe; 9 a sleeve; 10 lengthening the measuring rod; 11, a measuring seat; 12 star-shaped measuring pins; 13 fixed pins; 14 positioning pins; 15 sleeve mounting holes; 91 a clamping table; 92 radial bosses; 93 measuring rod mounting holes; a 94 axial boss; 151 card slot; 152 a threaded through hole; 153 second positioning holes; 921 a first positioning hole; 941 first fixing hole.
Detailed Description
The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.
For convenience of description, the relative positional relationship of the components, such as: the descriptions of the upper, lower, left, right, etc. are described with reference to the layout directions of the drawings in the specification, and do not limit the structure of the present patent.
As shown in fig. 1-6, the utility model discloses use measurement detection device an embodiment of deep and long blind hole axis as the benchmark to include three-coordinate measuring machine (not shown in the figure), connect gradually below three-coordinate measuring machine's the Z axle 3 first adapter 5, second adapter 7, tesastar gauge head 8, one side-mounting extension measuring stick 10 of first adapter 5, opposite side installation counterweight rod 4, the star survey pin 12 is installed through base 11 to the end of extension measuring stick 10. The Z-axis 3, the second adapter 7, the tesastar probe 8, the probe base 11 (preferably LSP-X1C probe base), and the star probe 12 are all conventional structures, and will not be described in detail below.
The level sets up sleeve mounting hole 15 on first adapter 5, set up in the sleeve mounting hole 15 along its axially extended draw-in groove 151, and set up the screw thread through-hole 152 that runs through first adapter 5 on the draw-in groove 151. Install sleeve 9 in the sleeve mounting hole 15, the periphery of sleeve 9 corresponds draw-in groove 151 sets up ka tai 91, just ka tai 91 card is gone into in the draw-in groove 151, and install the puller screw 6 in the screw through-hole 152, support through the puller screw 6 and push up sleeve 9 makes sleeve 9 is in the location in sleeve mounting hole 15.
In order to further fix the installation position of the sleeve 9, a radial boss 92 is arranged at the measuring rod connecting end of the sleeve 9, a first positioning hole 921 is arranged on the radial boss 92, a second positioning hole 153 is arranged at the measuring rod connecting side of the first adapter 5, the radial boss 92 is installed by being attached to the first adapter 5, the first positioning hole 921 is aligned with the second positioning hole 153, and a positioning pin 14 is inserted into the first positioning hole 921 and the second positioning hole 153.
And a measuring rod mounting hole 93 is formed in the middle of the sleeve 9, and the lengthened measuring rod 10 with the overhanging length of 1280mm is mounted in the measuring rod mounting hole 93.
For fixing extension measuring stick 10 to make things convenient for the dismantlement of extension measuring stick 10, the measuring stick link of sleeve 9 sets up axial boss 94, set up first fixed orifices 941 on the axial boss 94, the telescopic link of extension measuring stick 10 sets up second fixed orifices (not shown in the figure), first fixed orifices 941 with the second fixed orifices is aligned, and first fixed orifices 941 with it carries out the lock solid to insert in the second fixed orifices and establish fixed pin 13.
In order to ensure the measurement precision, eliminate the influence of the rod weight on the measurement precision and meet the strength requirement, the lengthened measuring rod 10 is in a frustum shape, the lengthened measuring rod 10 is preferably a carbon fiber lengthened measuring rod, and the sleeve 9 is preferably a carbon fiber sleeve.
When specifically applying, the utility model discloses a measurement process and principle as follows:
1) a standard tesastar measuring head 8 on a standard three-coordinate measuring machine is detached, and the upper end of a first adapter 5 is arranged at the lower end of a Z shaft 3 of the three-coordinate measuring machine through a positioning screw; a second adapter 7 is arranged at the lower end of the first adapter 5, and a tesastar measuring head 8 is arranged on the second adapter 7;
2) inserting a sleeve 9 into a sleeve mounting hole 15, aligning the first positioning hole 921 and the second positioning hole 153, and inserting a positioning pin 14 into the first positioning hole 921 and the second positioning hole 153 for fixing; the lengthened measuring rod 10 is inserted into the measuring rod mounting hole 93, and then inserted into the first fixing hole 941 and the second fixing hole through the fixing pin 13 for positioning and fixing;
3) a measuring seat 11 is arranged at the tail end of the lengthened measuring rod 10, and a star-shaped measuring pin 12 is arranged on the measuring seat 11;
4) the counterweight rod 4 is arranged on the first adapter 5;
5) calibrating the tesastar measuring head 8 and the star-shaped measuring pin 12 through the calibration ball respectively;
6) measuring the deep and long blind holes of the workpiece by using a star-shaped measuring pin 12 arranged on a lengthened measuring rod 10, and carrying out metering detection on a plurality of sections of the deep and long blind holes during measurement to form a common reference axis and establish a workpiece metering coordinate system;
7) the lengthened measuring rod 10 (comprising the star-shaped measuring needle 12 and the measuring seat 11) and the balance weight rod 4 are detached from the first adapter 5;
8) measuring and detecting all geometric dimensions and form and position tolerances of the workpiece except the dimension of the deep and long blind hole by using a tesastar measuring head 8;
9) comprehensively analyzing and evaluating the tolerance value of each size and shape and position under a common coordinate system determined by the measurement of the lengthened measuring rod 10 and the star-shaped measuring pin 12, comparing with a design file, evaluating the machining conformity of the workpiece, and completing the full-size three-coordinate measurement of the workpiece with the complicated structure of the irregular appearance reference characteristic surface and the design characteristic of taking the axis of the deep and long blind hole as the reference.
The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.
Claims (9)
1. The utility model provides an use measurement detection device of dark long blind hole axis as benchmark, includes three coordinate measuring machine and tesastar gauge head (8), its characterized in that, connect gradually below the Z axle (3) of three coordinate measuring machine first switching seat (5), second switching seat (7) and tesastar gauge head, the one end of one side demountable installation extension measuring stick (10) of first switching seat, opposite side installation counterweight rod (4), star measuring pin (12) are installed through base (11) to the other end of extension measuring stick.
2. The metering and detecting device based on the axis of the deep and long blind hole as the reference of claim 1, characterized in that a sleeve mounting hole (15) is formed in the first adapter, a sleeve (9) is detachably mounted in the sleeve mounting hole, and one end of the lengthened measuring rod is detachably mounted in the sleeve.
3. The metering and detecting device with the axis of the deep and long blind hole as the reference according to claim 2, wherein a clamping groove (151) is arranged in the sleeve mounting hole, a clamping table (91) is arranged on the outer periphery of the sleeve corresponding to the clamping groove, and the clamping table is clamped in the clamping groove.
4. The metering and detecting device taking the axis of the deep and long blind hole as the reference according to claim 3, wherein a threaded through hole (152) penetrating through the first adapter is formed in the clamping groove, and a jacking screw for jacking the sleeve is arranged in the threaded through hole.
5. The metering detection device based on the axis of the deep and long blind hole as the reference according to claim 2, characterized in that the measuring rod connecting end of the sleeve is provided with an axial boss (94), the axial boss is provided with a first fixing hole (941), the sleeve connecting end of the lengthened measuring rod is provided with a second fixing hole, the first fixing hole and the second fixing hole are aligned, and a fixing pin (13) is inserted into the first fixing hole and the second fixing hole.
6. The metering detection device taking the axis of the deep and long blind hole as the reference according to claim 2, characterized in that the measuring rod connecting end of the sleeve is provided with a radial boss (92), the radial boss is provided with a first positioning hole (921), the first adapter is provided with a second positioning hole (153), after the sleeve is installed in the adapter, the first positioning hole is aligned with the second positioning hole, and a positioning pin (14) is inserted into the first positioning hole and the second positioning hole.
7. The metering and detecting device taking the axis of the deep and long blind hole as the reference according to claim 1, wherein the lengthened measuring rod is frustum-shaped.
8. The metering detection device taking the axis of the deep and long blind hole as the reference according to claim 1, wherein the overhanging length of the lengthened measuring rod is 1280 mm.
9. The metering and detecting device with the axis of the deep and long blind hole as the reference according to claim 2, wherein the sleeve is a carbon fiber sleeve, and the lengthened measuring rod is a carbon fiber measuring rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022645920.2U CN213515345U (en) | 2020-11-16 | 2020-11-16 | Metering detection device taking axis of deep and long blind hole as reference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022645920.2U CN213515345U (en) | 2020-11-16 | 2020-11-16 | Metering detection device taking axis of deep and long blind hole as reference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213515345U true CN213515345U (en) | 2021-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022645920.2U Active CN213515345U (en) | 2020-11-16 | 2020-11-16 | Metering detection device taking axis of deep and long blind hole as reference |
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| Country | Link |
|---|---|
| CN (1) | CN213515345U (en) |
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- 2020-11-16 CN CN202022645920.2U patent/CN213515345U/en active Active
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