CN208606696U - A kind of profile R angle measurement tool - Google Patents

Abstract

The utility model discloses a kind of profile R angle measurement tools, belong to measuring tool equipment technology field, including pedestal, fix on the base and be bonded 2 wall extensions of profile side wall, slide assemblies are provided in the pedestal, the glide direction of the slide assemblies is the line direction in the center of circle at the angle the profile R and the midpoint at the angle R, the slide assemblies are equipped with master calibration ruler, the pedestal is equipped with secondary graduated scale corresponding with master calibration ruler position, and the master calibration ruler scale spacing is greater than the secondary graduated scale scale spacing.The features such as the utility model has measurement accuracy high, and measurement method is easily understood, easy to operate, and measurement is time-consuming short.

Description

A kind of profile R angle measurement tool

Technical field

The utility model relates to measuring tool equipment technology fields, more particularly to a kind of profile R angle measurement tool.

Background technique

There are the angle R craft wrapping process at hatch door, the size at the angle bound edge R is determined bus industry by the angle profile R, and scene is adjusted It is unstable to research and develop the existing angle profile R size, influences bound edge quality.The angle doorframe R of the forward and backward car door of automobile is the spelling of roll-forming part simultaneously It welds, the lap-joint after door frame welding is wedge angle, does not have auxiliary implement generally and measurer measures the processing step of control Suddenly, manually experience goes to the polishing angle R completely.Therefore, the polishing at the angle R can be usually directly resulted in because of the deficiency of staff's technical ability Without any standard, the R value for acquisition of polishing is not of uniform size, eventually lead to doorframe reach assembly shop entrucking after it is extremely ugly, hold very much It is easily found by fastidious client, influences client to the direct feel of vehicle body, reduce the competitiveness of vehicle.

At present to the measurement of the angle profile R size without special measuring tool, measurement method disunity, low precision, low efficiency, Measuring technique is mainly divided to two kinds, the first: by Steel Ruler or tape measure, such measuring technique measurement method disunity, Low precision, low efficiency；Second: it is compared using the sheet template that sheet metal is fabricated to the different angles R size by amount, but piece Shape template is easy to damage, is not suitable for on-site personnel uses, and measurement accuracy is not high, therefore is badly in need of a kind of dedicated, reliable, efficient With high-precision R angle measurement tool.

Patent document " a kind of measurer tooling at the quick judgement identification front and back angle doorframe R " (CN207132838U) discloses one Kind quickly judges the measurer tooling at the identification front and back angle doorframe R, including inside steel plate, outside plate.Inside steel plate and outside plate It is fixed together.Inside steel plate, outside plate are equipped with the first hollow-out parts and second in place corresponding with tested door swing angle and engrave Empty portion.Second hollow-out parts are equipped with and are tested car door according to the equal-sized measurement corner in the angle doorframe R of design requirement: interior when measurement Side edges of plate is tightly attached in two corner edges of tested door swing angle, and the plate face of outside plate is tightly attached to tested door panel On surface, the tested angle door frame R is emerging in the first hollow-out parts and the second hollow-out parts simultaneously according to situation or measured corner It shelters from.The utility model, structurally reasonable simple, use is efficient and convenient, be conducive to it is quick, correctly correct door swing angle.But it should Measurer can only measure the fixed angle R size, and cannot accurately measure different arc radius, be unfavorable for staff according to measurement As a result the polishing angle R realizes precisely processing, improves processing efficiency.

Utility model content

In order to solve the problems existing in the prior art, the utility model proposes a kind of R angle measurement tools that measurement accuracy is high.

The utility model includes pedestal, fixes on the base and is bonded 2 wall extensions of profile side wall, set in the pedestal Slide assemblies are equipped with, the glide direction of the slide assemblies is the line direction in the center of circle at the angle the profile R and the midpoint at the angle R, The slide assemblies are equipped with master calibration ruler, and the pedestal is equipped with secondary graduated scale corresponding with master calibration ruler position, described Master calibration ruler scale spacing is greater than the secondary graduated scale scale spacing.

Further, the slide assemblies include slide body and the measurement body that is arranged in slide body, the measurement Body length is greater than the length of slide body.

Further, it is provided with boss on the slide assemblies, the sliding matched with boss is provided in the pedestal Groove, slide assemblies are slided along sliding recess.

Further, sliding through hole is provided in the slide body, measurement body is mounted in sliding through hole.

Further, pin hole is arranged in the slide body and measurement in vivo, further includes the positioning pin through pin hole.

Further, the locking device for locking slide assemblies is provided on the pedestal.

Further, the utility model further includes the latch segment for being mounted in sliding recess and matching with boss, and The clamping screw abutted across the threaded hole and latch segment that are arranged on the base.

Further, the caging bolt for preventing slide assemblies from skidding off is provided on the pedestal.

Further, slide body 8-10mm is partially higher by the positioning pin.

Further, the measurement shape is cuboid.

The method at the utility model measurement angle profile R includes the following steps:

Step 1: adjustment the utility model allows wall extension angle vertex to fall in the end face vertical projecting line of measurement body, makes 0 scale point alignment of 0 calibration points of master calibration ruler and secondary graduated scale；

Step 2: testee is put into the angle that wall extension angle is α, guarantees the sides adjacent at the angle testee R Wall is bonded with wall extension, and sliding slide assemblies make to measure body and the tested angle R circular arc face contact；

Step 3: rotation clamping screw fastens slide assemblies, takes out testee, reads master calibration ruler and secondary graduated scale On scale, obtain measurement body moving distance h.

Step 4: being α by known wall extension included angle and the moving distance h that measures using related mathematical formulae, Calculate the radius value r at the angle R.

The utility model utilizes the mathematical principle of tangential method in R angular measurement, it is known that the tangent line tangent with circular arc both ends intersects Included angle be α, distance from angle vertex to center of arc section is h, and r is the radius value at the angle R, using formula sin (α/ 2)=r/ (r+h) acquires r=sin (α/2) h/ (1-sin (α/2)), passes through wall extension angle and the measurement body movement that angle is α Distance h conveniently, accurately derives that testee R angular radius value, this method measurement error are small.

The utility model compared with the existing technology, the advantage is that:

1, the utility model includes pedestal, fixes on the base and be bonded 2 wall extensions of profile side wall, setting in pedestal There are slide assemblies, the glide direction of slide assemblies is the line direction in the center of circle at the angle the profile R and the midpoint at the angle R, utilizes trip The principle for marking slide calliper rule measures the angle vertex of wall extension intersection to the distance of the angle R center section, recycles mathematical principle, meter R angular radius value is calculated, measurement is easily understood with calculation method, easy to operate；According to vernier caliper measurement principle, the utility model Master calibration ruler be used cooperatively with secondary graduated scale, master calibration ruler scale interval is consistently greater than the secondary graduated scale scale interval one Grade, every lattice scale value as the measurement accuracy that people's naked eyes can be distinguished, master calibration ruler indicate 1mm, the secondary every lattice scale of graduated scale Value indicates 0.9mm, and measurement accuracy can be accurate to 0.1mm, and measurement accuracy is higher than the range that people's naked eyes can identify, further Ground, the utility model directly can also convert corresponding R angular radius value for scale value, reduce and calculate step, read R angular radius Value Data is intuitively accurate.

2, the utility model slide assemblies include slide body, positioning pin and measurement body, and slide body and measurement are set in vivo Pin hole is set, positioning pin runs through pin hole, facilitates slide body and measures the maintenance and replacement of body, avoids influencing measurement essence because of abrasion It spends, is partially higher by slide body 8-10mm on positioning pin, can be rectangle as the handle for pushing slide assemblies sliding, measurement body Body, end and measurement object form line face contact when measurement, and it is more convenient accurate to make to measure.

3, it is provided with boss on the utility model slide assemblies, the sliding recess matched with boss is provided in pedestal, Slide assemblies are slided along sliding recess, are facilitated the installation of slide assemblies and are slided, and pedestal is equipped with caging bolt, it is therefore prevented that sliding Component skids off pedestal in sliding process, makes entire measuring tool structure more compact and reasonable.

4, the utility model pedestal is equipped with the locking device for locking slide assemblies, reading data when being convenient for measuring, Avoid the unnecessary sliding of slide assemblies, make reading more acurrate, tight device include be mounted in sliding recess and with boss phase The latch segment matched, and the clamping screw abutted across the threaded hole and latch segment being arranged on the base, the latch segment are located at In sliding recess, the design of latch segment, avoid be used alone clamping screw when slide assemblies are caused to damage, make slide assemblies by The pressing force arrived is uniform.

Detailed description of the invention

Fig. 1 is this utility structure schematic diagram.

Fig. 2 is this practical assembling schematic perspective view.

Fig. 3 is 2 stereoscopic schematic diagram of the utility model component.

Fig. 4 is the utility model component 6 and 7 stereoscopic schematic diagram of component.

Fig. 5 is the utility model principle figure.

1 profile in the figure, 2 pedestals, 21 slide slots, 22 secondary graduated scales, 23 sliding recess, 24 wall extensions, 3 caging bolts, 4 clamping screws, 5 latch segments, 6 measurement bodies, 7 slide bodies, 71 master calibration rulers, 72 positioning pins, 73 boss.

Specific embodiment

As shown in Figs 1-4, the utility model includes pedestal 2, fixes on the base 2 and be bonded 2 extensions of 1 side wall of profile Wall 24 is provided with slide assemblies in the pedestal 2, and the glide direction of the slide assemblies is the angle the R center of circle and the R of the profile 1 The line direction at the midpoint at angle, the slide assemblies are equipped with master calibration ruler 71, and the pedestal 2 is equipped with and master calibration ruler 71 Corresponding secondary graduated scale 22 is set, 71 scale spacing of master calibration ruler is greater than 22 scale spacing of the secondary graduated scale.

The utility model includes by the Y type pedestal of pedestal 2 and fixed 2 wall extensions 24 on the base 2, and wall extension 24 pastes 1 side wall of profile material is provided with slide assemblies in pedestal 2, and slide assemblies are equipped with master calibration ruler 71, and pedestal 2 is equipped with and main quarter The corresponding secondary graduated scale 22 in 71 position of ruler is spent, according to vernier caliper measurement principle, the master calibration ruler 71 and pair of the utility model Graduated scale 22 is used cooperatively, 0 scale point alignment of 0 calibration points of master calibration ruler 71 and secondary graduated scale 22,71 scale of master calibration ruler Interval is consistently greater than secondary 22 scale interval level-one of graduated scale, as the measurement accuracy that people's naked eyes can be distinguished, master calibration ruler it is every Lattice scale value indicates 1mm, and the secondary every lattice scale value of graduated scale indicates 0.9mm, and measurement accuracy can be accurate to 0.1mm, measurement accuracy Higher than the range that people's naked eyes can identify, guarantee that measurement data is accurate.

Wall extension 24 is bonded 1 side wall of profile, and the glide direction of slide assemblies is in the angle the R center of circle and the angle R of the profile 1 The line direction of point, slide assemblies end face can be tangent with the midpoint at the angle tested profile R in measurement process, measures wall extension 24 To the distance of the angle R center section, the included angle of wall extension 24 is equal to the adjacent two sidewalls in the angle R of profile 1 on the angle vertex of intersection Included angle, i.e., the included angle of wall extension 24 be equal to the section included angle tangent with the angle the R two sides endpoint of profile 1, benefit It is measured with arc measuring tangential method principle and calculates R angular radius, measurement is easily understood with calculation method, easy to operate.

Optimal technical scheme as the utility model directly can utilize tangential method mathematical principle by corresponding R angular radius Value is converted into the scale value on master calibration ruler 71 and secondary graduated scale 22, reduces and calculates step, and it is intuitively quasi- to read R angular radius Value Data Really.

The slide assemblies include slide body 7 and the measurement body 6 that is arranged in slide body 7,6 length of measurement body Greater than the length of slide body 7, individually designed measurement body 6, measurement body 6 is preferably cuboid, and the end of body 6 is measured when being convenient for measuring Face is abutted with the angle R of profile 1, and end and measurement object form line face contact when measurement, and it is more convenient accurate to make to measure.

The pedestal is equipped with the slide slot 21 for installing slide assemblies.

It is provided with boss 73 on the slide assemblies, is provided with the sliding recess matched with boss 73 in the pedestal 2 23, slide assemblies are slided along sliding recess 23, and the sliding recess 23 is located at 21 two sides of slide slot.

Slide slot 21 is equipped in the utility model pedestal 2,21 two sides of slide slot, which set sliding, sliding recess 23, slide assemblies Two sides are equipped with the boss 73 to match with sliding recess 23, and 2 upper surface of pedestal is consistent with slide assemblies upper level, facilitates cunning It moves the installation of component and slides, make entire measuring tool structure more compact and reasonable, avoid glide direction from deviation occur, influence to read The accuracy for evidence of fetching.

Sliding through hole is provided in the slide body 7, measurement body 6 is mounted in sliding through hole.

Pin hole is set in the slide body 7 and measurement body 6, further includes the positioning pin 72 through pin hole.

The utility model sets dismountable structure with measurement body 6 for the slide body 7 in slide assemblies, facilitates sliding Ontology 7 and the maintenance and replacement for measuring body 6 avoid influencing measurement accuracy because using abrasion.

The locking device for locking slide assemblies is provided on the pedestal 2, reading data when being convenient for measuring avoids The unnecessary sliding of slide assemblies makes reading more acurrate.

The utility model includes the latch segment 5 for being mounted in sliding recess 23 and matching with boss 73, and across setting The clamping screw 4 that threaded hole and latch segment 5 on the base 2 abut is set, latch segment 5 is abutted with slide assemblies, and latch segment 5 is set Meter avoids causing to damage to slide assemblies when clamping screw 4 is used alone, and the pressing force for being subject to slide assemblies is uniform.

The caging bolt 3 for preventing slide assemblies from skidding off is provided on the pedestal 2, the latch segment 5 is located at caging bolt 3 Between, it is therefore prevented that slide assemblies and latch segment 5 skid off groove 23 in sliding process, facilitate master calibration ruler 71 and secondary graduated scale 22 Carry out zero point alignment.

23 width of sliding recess that locking device is arranged in the utility model is equal to the width that latch segment 5 adds boss 73, is The installation of caging bolt 3 is adapted to, the length of the boss 73 of slide assemblies two sides is inconsistent, to facilitate installation caging bolt 3

The distance that slide body 7 is partially higher by the positioning pin 72 is 8-10mm, as promotion slide assemblies sliding Handle makes to operate more convenient.

6 shape of measurement body is cuboid.

The method at the utility model measurement angle profile R includes the following steps:

Step 1: adjustment the utility model allows 24 angle vertex of wall extension to fall in the end face vertical projecting line of measurement body 6 On, make 0 calibration points of master calibration ruler 71 and 0 scale point alignment of secondary graduated scale 22；

Step 2: testee is put into the angle that 24 angle of wall extension is α, guarantees the adjacent of the angle testee R Side wall is bonded with wall extension 24, and sliding slide assemblies make to measure body 6 and the tested angle R circular arc face contact；

Step 3: rotation clamping screw 4 fastens slide assemblies, takes out testee, reads master calibration ruler 71 and secondary scale Scale on ruler 22 obtains measurement 6 moving distance h of body.

Step 4: being α and the moving distance measured by known 24 included angle of wall extension using related mathematical formulae H calculates the radius value r at the angle R.

The utility model utilizes the mathematical principle of tangential method in R angular measurement, it is known that the tangent line tangent with circular arc both ends intersects Included angle be α, distance from angle vertex to center of arc section is h, and r is the radius value of circular arc, utilizes formula sin (α/2)=r/ (r+h) acquires r=sin (α/2) h/ (1-sin (α/2)), passes through 24 angle of wall extension and the measurement that angle is α 6 moving distance h of body conveniently, accurately derives that testee R angular radius value, this method measurement error are small.

As shown in figure 5, when testee is the profile of automobile door frame, the wall extension of the utility model R angle measurement tool 24 included angles are 90 °, i.e. α=90 °, substitute into above-mentioned formula, then the R angular radius value of automobile door frame profile is Further, the scale numerical value of master calibration ruler 71 and secondary graduated scale 22 can be selected through formulaNumber after conversion According to reduction calculates step, and reading R angular radius Value Data is intuitively accurate, and measurement accuracy is accurate to 0.1mm, precisely practical.

Basic principles, main features, and advantages of the present invention has been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, the utility model can also on the premise of not departing from the spirit and scope of the utility model There are various changes and modifications, these various changes and improvements fall within the scope of the claimed invention.The utility model is wanted Protection scope is asked to be defined by appended claims and its equivalent.

Claims (10)

1. a kind of profile R angle measurement tool, characterized in that including pedestal (2), be fixed on pedestal (2) and be bonded profile (1) side 2 wall extensions (24) of wall, the pedestal (2) is interior to be provided with slide assemblies, and the glide direction of the slide assemblies is the type The line direction at the midpoint in the center of circle and angle R at material (1) angle R, the slide assemblies are equipped with master calibration ruler (71), the pedestal (2) it is equipped with secondary graduated scale (22) corresponding with master calibration ruler (71) position, master calibration ruler (71) scale spacing is greater than Described pair graduated scale (22) scale spacing.

2. profile R angle measurement tool as described in claim 1, characterized in that the slide assemblies include slide body (7) and The measurement body (6) being arranged in slide body (7), measurement body (6) length are greater than the length of slide body (7).

3. profile R angle measurement tool as claimed in claim 1 or 2, characterized in that be provided with boss on the slide assemblies (73), it is provided in the pedestal (2) and is slided with boss (73) matched sliding recess (23), slide assemblies along sliding recess (23) It is dynamic.

4. profile R angle measurement tool as claimed in claim 2, characterized in that it is logical to be provided with sliding in the slide body (7) Hole, measurement body (6) are mounted in sliding through hole.

5. profile R angle measurement tool as claimed in claim 2 or 4, characterized in that the slide body (7) and measurement body (6) Interior setting pin hole further includes the positioning pin (72) through pin hole.

6. the profile R angle measurement tool as described in claim 1,2 or 4, characterized in that be provided with and be used on the pedestal (2) Lock the locking device of slide assemblies.

7. profile R angle measurement tool as claimed in claim 3, characterized in that further include be mounted in sliding recess (23) and The latch segment (5) to match with boss (73), and pass through what threaded hole and latch segment (5) of the setting on pedestal (2) abutted Clamping screw (4).

8. the profile R angle measurement tool as described in claim 1,2 or 4, characterized in that being provided on the pedestal (2) prevents The caging bolt (3) that slide assemblies skid off.

9. profile R angle measurement tool as claimed in claim 5, characterized in that be partially higher by sliding on the positioning pin (72) Ontology (7) 8-10mm.

10. profile R angle measurement tool as claimed in claim 2 or 4, characterized in that measurement body (6) shape is rectangle Body.