CN110836625A - A cantilever type high-precision length measuring device - Google Patents
A cantilever type high-precision length measuring device Download PDFInfo
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- CN110836625A CN110836625A CN201911317322.8A CN201911317322A CN110836625A CN 110836625 A CN110836625 A CN 110836625A CN 201911317322 A CN201911317322 A CN 201911317322A CN 110836625 A CN110836625 A CN 110836625A
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- 238000005259 measurement Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 35
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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Abstract
本发明公开了一种悬臂式长度高精长度测量装置,其包括测头,所述测头上设置有朝外延伸设置的第一凸台,所述测头固定在滑杆上部;所述滑杆下部设置在量具体内,可在量具体内滑动设定距离;所述量具体上设置有朝外延伸设置的第二凸台,所述第一凸台上表面与第二凸台上表面平行设置;所述量具体设置在支座上,所述支座内设置有千分表,所述千分表的表头朝上卡紧在支座上,所述表头与滑杆同轴设置且表头顶部可与滑杆底端接触。它可高精度的定位到基准面和测量面,测量精度高,提高产品的一致性。
The invention discloses a cantilever type high-precision length measuring device, which comprises a measuring head, the measuring head is provided with a first boss extending outward, the measuring head is fixed on the upper part of a sliding rod; The lower part of the rod is set in the concrete, and can slide within the concrete for a set distance; the concrete is provided with a second boss extending outward, and the upper surface of the first boss and the upper surface of the second boss are Parallel setting; the quantity is specifically set on a support, a dial indicator is set in the support, the dial head is clamped on the support upward, and the dial head is coaxial with the sliding rod Set and the top of the meter head can be in contact with the bottom end of the slider. It can be positioned to the reference surface and the measurement surface with high precision, with high measurement accuracy and improved product consistency.
Description
技术领域technical field
本发明涉及一种悬臂式长度高精长度测量装置。The invention relates to a cantilever type high-precision length measuring device.
背景技术Background technique
通常对于工件形状简单、被测尺寸精度不高、且方便测量的长度尺寸可根据精度要求优选通用量规,如卷尺、钢直尺、游标卡尺等进行测量。在以下几种情况下工件加工、装配检验中广泛采用特制的专用量规:1、通用量规满足不了检验要求;2、为了使用方便,提高检验效率,以满足大批量生产的要求;3、被测长度尺寸的精度要求较高,被检测工件部位较复杂。Generally, for the length dimension of the workpiece with simple shape, low precision of the measured dimension, and convenient measurement, a general gauge, such as a tape measure, steel ruler, vernier caliper, etc., can be selected according to the accuracy requirements. In the following cases, special special gauges are widely used in workpiece processing and assembly inspection: 1. General gauges cannot meet the inspection requirements; 2. In order to be convenient to use, improve the inspection efficiency to meet the requirements of mass production; 3. The measured The accuracy of the length dimension is required to be high, and the detected workpiece part is more complex.
悬臂式结构的长度测量装置属于高精测量,通常采用通用量规进行测量,由于悬臂式结构形状不一,有些存在干涉部位,无法准确定位到测量面,影响测量精度。如附图13中工件形状,被测尺寸“L”两端被挡,即有凸台G干涉而不便测量的情况,或者测量类似于附图12中的校对块形状(尺寸b≤c)的工件尺寸“a”的长度;传统的测量工具难以避开干涉部位伸入被测部位,因此无法准确的获得测量尺寸。The length measuring device of the cantilever structure belongs to high-precision measurement, and usually uses a general gauge for measurement. Due to the different shapes of the cantilever structure, there are some interference parts, which cannot be accurately positioned to the measurement surface, which affects the measurement accuracy. As shown in the shape of the workpiece in Fig. 13, the two ends of the measured dimension "L" are blocked, that is, there is interference of the boss G and it is inconvenient to measure, or the measurement is similar to the shape of the proofing block in Fig. 12 (dimension b≤c) The length of the workpiece dimension "a"; it is difficult for traditional measuring tools to avoid the interference part and protrude into the measured part, so the measured dimension cannot be accurately obtained.
发明内容SUMMARY OF THE INVENTION
本发明的目的是针对以上问题,提供一种悬臂式长度高精长度测量装置,它能高精度的定位到基准面和测量面,测量精度高,提高产品的一致性。The purpose of the present invention is to solve the above problems and provide a cantilever type high-precision length measuring device, which can be positioned to the reference plane and the measuring plane with high precision, has high measuring accuracy, and improves the consistency of products.
为实现以上目的,本发明采用的技术方案是:一种悬臂式长度高精长度测量装置,其包括测头,所述测头上设置有朝外延伸设置的第一凸台,所述测头固定在滑杆上部;所述滑杆下部设置在量具体内,可在量具体内滑动设定距离;所述量具体上设置有朝外延伸设置的第二凸台,所述第一凸台上表面与第二凸台上表面平行设置;所述量具体设置在支座上,所述支座内设置有千分表,所述千分表的表头朝上卡紧在支座上,所述表头与滑杆同轴设置且表头顶部可与滑杆底端接触。In order to achieve the above purpose, the technical solution adopted in the present invention is: a cantilever type high-precision length measuring device, which includes a measuring head, the measuring head is provided with a first boss extending outward, and the measuring head is provided with a first boss extending outward. It is fixed on the upper part of the sliding rod; the lower part of the sliding rod is set in the measuring body, and can slide a set distance within the measuring body; the measuring body is provided with a second boss extending outward, and the first boss is The upper surface is arranged in parallel with the upper surface of the second boss; the quantity is specifically arranged on a support, a dial indicator is arranged in the support, and the head of the dial indicator is clamped on the support upwards, The watch head and the sliding rod are coaxially arranged, and the top of the watch head can be in contact with the bottom end of the sliding rod.
进一步的,所述量具体包括柱状筒和第二凸台,所述柱状筒中间设置贯穿其两端的阶梯孔,所述阶梯孔由上至下设置为滑杆安装孔、弹簧放置孔、螺套安装螺纹孔和过渡孔;所述柱状筒底部两侧对称设置有安装凸台,所述安装凸台与柱状筒成“T”字形设置,该安装凸台上均设置有固定孔;所述第二凸台设置在量具体的顶部,与柱状筒的筒壁垂直且成“7”字形设置。Further, the amount specifically includes a cylindrical tube and a second boss, the middle of the cylindrical tube is provided with stepped holes running through its two ends, and the stepped holes are set from top to bottom as a sliding rod installation hole, a spring placement hole, and a screw sleeve. Mounting threaded holes and transition holes; two sides of the bottom of the cylindrical barrel are symmetrically provided with mounting bosses, the mounting bosses and the cylindrical barrel are arranged in a "T" shape, and the mounting bosses are all provided with fixing holes; the first The two bosses are arranged on the top of the concrete, which are perpendicular to the cylinder wall of the cylindrical cylinder and are arranged in the shape of a "7".
进一步的,所述滑杆为阶梯轴,由上至下设置为螺纹段、测头安装段、轴肩段、滑动段和弹簧安装段,所述滑动段的柱面中部开设有矩形槽,所述测头安装段上开设有限位孔;所述滑动段设置在滑杆安装孔内。Further, the sliding rod is a stepped shaft, which is arranged from top to bottom into a threaded section, a probe installation section, a shaft shoulder section, a sliding section and a spring installation section, and a rectangular groove is opened in the middle of the cylindrical surface of the sliding section, so The measuring head installation section is provided with a limiting hole; the sliding section is arranged in the sliding rod installation hole.
进一步的,所述螺纹段上设置有螺母,所述螺母底部与测头顶部接触。Further, a nut is provided on the threaded section, and the bottom of the nut is in contact with the top of the probe.
进一步的,所述测头包括筒体和与筒体相连的第一凸台,所述筒体设置在测头安装段,所述筒体外壁上设置有垂直筒壁设置的第二螺纹孔,所述第二螺纹孔内设置有紧定螺钉,该所述紧定螺钉端部设置在滑杆上的限位孔内。Further, the measuring head includes a cylinder body and a first boss connected with the cylinder body, the cylinder body is arranged in the measuring head installation section, and the outer wall of the cylinder is provided with a second threaded hole arranged perpendicular to the cylinder wall, A set screw is set in the second threaded hole, and the end of the set screw is set in the limit hole on the sliding rod.
进一步的,所述量具体上部在滑杆安装孔段的外壁上设置有垂直该滑杆安装孔的第一螺纹孔,所述第一螺纹孔内设置有导向螺钉,所述导向螺钉的端部设置在矩形槽内且不与矩形槽底接触,所述矩形槽的高度大于导向螺钉的直径。Further, a first threaded hole perpendicular to the sliding rod installation hole is provided on the outer wall of the sliding rod installation hole section at the upper part of the measuring unit, a guide screw is arranged in the first threaded hole, and the end of the guide screw is provided. It is arranged in the rectangular groove and does not contact the bottom of the rectangular groove, and the height of the rectangular groove is larger than the diameter of the guide screw.
进一步的,所述弹簧安装段上套合有弹簧,所述弹簧设置在弹簧放置孔内;所述弹簧上端与滑动段下端接触,下端与外螺纹套顶面接触;所述外螺纹套与螺套安装螺纹孔配合,所述弹簧安装段底端设置在外螺纹套的内孔内。Further, a spring is sleeved on the spring installation section, and the spring is arranged in the spring placement hole; the upper end of the spring is in contact with the lower end of the sliding section, and the lower end is in contact with the top surface of the outer threaded sleeve; the outer threaded sleeve is in contact with the threaded sleeve. The sleeve installation threaded hole is matched, and the bottom end of the spring installation section is arranged in the inner hole of the external threaded sleeve.
进一步的,所述支座设置为拱形,该拱形顶部中间贯穿设置有表头安装孔,所述表头安装孔内套合有衬套,所述衬套设置为有缺口的C形环状结构,所述衬套抱紧表头并卡紧在表头安装孔内;所述支座拱形顶部两侧对称设置有第三螺纹孔,该第三螺纹孔与量具体底部的安装凸台上的固定孔相适配并通过第二螺钉紧固。Further, the support is set in an arch shape, and the top of the arch is provided with a watch head mounting hole in the middle, a bushing is sleeved in the watch head mounting hole, and the bushing is set as a notched C-ring The bushing holds the watch head and is clamped in the installation hole of the watch head; third threaded holes are symmetrically arranged on both sides of the arched top of the support, and the third threaded hole is connected to the mounting protrusion at the bottom of the measuring body. The fixing holes on the table are matched and fastened by the second screw.
进一步的,所述衬套外壁中间设置有环形槽,所述支座侧面设置有垂直表头安装孔的第四螺纹孔,该所述第四螺纹孔与该环形槽连通,所述第四螺纹孔内设置有滚花螺钉,所述滚花螺钉拧入的端部设置在环形槽内。Further, an annular groove is arranged in the middle of the outer wall of the bushing, and a fourth threaded hole perpendicular to the mounting hole of the head is arranged on the side of the support, the fourth threaded hole is communicated with the annular groove, and the fourth threaded hole is provided. A knurled screw is arranged in the hole, and the screwed end of the knurled screw is arranged in the annular groove.
本发明的有益效果:Beneficial effects of the present invention:
1、本发明采用悬臂式结构的测头和定位面可以伸入被测部位,巧妙避开干涉部位,从而准确地获取读数来判断工件尺寸是否合格。1. The probe and the positioning surface of the cantilever structure of the present invention can extend into the measured part, and cleverly avoid the interference part, so that the reading can be accurately obtained to judge whether the size of the workpiece is qualified.
2、本发明采用千分表来读数,不仅灵敏度高、测量精度高,而且读数直观、明了。2. The present invention adopts a dial indicator for reading, which not only has high sensitivity and high measurement accuracy, but also has an intuitive and clear reading.
3、本发明结构简单、使用方便、维修容易、工作效率高等,可广泛用于生产实际中。3. The present invention has the advantages of simple structure, convenient use, easy maintenance and high work efficiency, and can be widely used in practical production.
4、本发明设计的滑杆在测量结束后可自动复位,使用方便。4. The sliding bar designed by the present invention can be automatically reset after the measurement, and it is convenient to use.
附图说明Description of drawings
图1为本发明侧剖视图。Figure 1 is a side sectional view of the present invention.
图2为本发明主剖视图。FIG. 2 is a front cross-sectional view of the present invention.
图3为本发明俯视图。Figure 3 is a top view of the present invention.
图4为本发明量具体主剖视图。FIG. 4 is a specific front cross-sectional view of the present invention.
图5为本发明量具体俯视图。Figure 5 is a specific top view of the quantity of the present invention.
图6为本发明滑杆主视图。FIG. 6 is a front view of the slide bar of the present invention.
图7为本发明测头主视图。FIG. 7 is a front view of the probe of the present invention.
图8为本发明衬套俯视图。Figure 8 is a top view of the bushing of the present invention.
图9为本发明衬套主剖视图。FIG. 9 is a front cross-sectional view of the bushing of the present invention.
图10为本发明支座主剖视图。Figure 10 is a front cross-sectional view of the support of the present invention.
图11为本发明外螺纹套剖视图。Figure 11 is a cross-sectional view of the external thread sleeve of the present invention.
图12为本发明校对块结构视图。FIG. 12 is a structural view of the proofreading block of the present invention.
图13为本发明工件示意图。Figure 13 is a schematic diagram of the workpiece of the present invention.
具体实施方式Detailed ways
为使本发明的上述目的、特征和优点能够更加明显易懂,下面对本发明的具体实施方式做详细说明。在下面的描述中阐述了很多具体细节以便于充分理解本发明。但是本发明能够以很多不同于在此描述的其他方式来实施,本领域技术人员可以在不违背本发明内涵的情况下做类似改进,因此本发明不受下面公开的具体实施的限制。In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation disclosed below.
如图1-图11所示,本发明的具体结构为:一种悬臂式长度高精长度测量装置,其由上至下设置为滑杆13、螺母7、测头14、量具体12、弹簧11、外螺纹套4、千分表6、支座3和底座1。As shown in Figures 1-11, the specific structure of the present invention is: a cantilever type high-precision length measuring device, which is arranged from top to bottom as a
其中,螺母7设置在滑杆13顶部压紧设置在滑杆13上部的测头14,在测头14上设置有朝外延伸设置的第一凸台142;滑杆13下部设置在量具体12,且可在量具体12内滑动设定的距离;在量具体12上设置有朝外延伸设置的第二凸台136,该第二凸台136上表面与第一凸台142上表面平行设置,该两上表面作为与待测工件的接触平面,其中第二凸台136的上表面作为测量基准定位面,硬度及形位精度较高,该第二凸台相当于游标卡尺的外测量爪,第一凸台142的上表面作为测量面,硬度及精度较高,相当于游标卡尺的内测量爪;在量具体12内还设置有弹簧11,该弹簧11设置在滑杆13的下部小轴上,并通过设置在量具体12内外螺纹套4限制弹簧11的下端位置,由滑杆13在量具体12内滑动距离来限定弹簧11最大压缩或伸长度;滑杆13的底端在向下滑动的时候可与千分表6的表头61顶部接触,通过接触压紧表头61在千分表6上获得读数;该千分表6的表头61朝上卡紧在支座3上,支座3固定在底座1上。The
优选的,量具体12包括柱状筒127和第二凸台126,柱状筒127中间设置有贯穿其两端的阶梯孔,阶梯孔由上至下设置为滑杆安装孔121、弹簧放置孔122、螺套安装螺纹孔123和过渡孔128;其中滑杆安装孔121内设置滑杆13,滑杆13在滑杆安装孔121内上下滑动;弹簧放置孔122内放置弹簧11,弹簧11在该孔内进行压缩;螺套安装螺纹孔123内设置外螺纹套4,螺套安装螺纹孔123的螺纹高度大于外螺纹套4的高度,使得外螺纹套4可在螺套安装螺纹孔123内上下拧动,从而调节弹簧11的压缩量;过渡孔128起到过渡作用,通过该过渡孔128开设螺套安装螺纹孔123;所述量具体12通过第二螺钉17设置在支座3上。Preferably, the
进一步的,柱状筒127底部两侧对称设置有安装凸台124,所述安装凸台124与柱状筒127成“T”字形设置,该安装凸台124上均设置有固定孔125;所述第二凸台126设置在量具体12的顶部,与柱状筒127的筒壁垂直且成“7”字形设置。Further, mounting bosses 124 are symmetrically arranged on both sides of the bottom of the cylindrical barrel 127, the mounting bosses 124 and the cylindrical barrel 127 are arranged in a "T" shape, and the mounting bosses 124 are provided with fixing holes 125; The two
优选的,滑杆13为阶梯轴,由上至下设置为螺纹段131、测头安装段132、轴肩段133、滑动段134和弹簧安装段135;螺母7设置在螺纹段131上压紧测头14,测头14设置在测头安装段132上其底部与轴肩段133顶面接触;所述滑动段134设置在滑杆安装孔121内,滑动段134与滑杆安装孔121间隙配合,滑杆安装孔121的直径小于轴肩段133直径,在滑动段134的柱面中部开设有矩形槽136,滑杆13在矩形槽136上下端之间的区域内上下滑动,所述量具体12上部在滑杆安装孔121段的外壁上设置有垂直该滑杆安装孔121的第一螺纹孔129,所述第一螺纹孔129内设置有导向螺钉9,所述导向螺钉9的端部设置在矩形槽136内且不与矩形槽底接触,所述矩形槽136的高度大于导向螺钉9的直径,通过在矩形槽136内设置导向螺钉9来限制滑杆13上下移动的距离,矩形槽136的宽度稍大于导向螺钉9的直径,防止滑杆13转动。Preferably, the
进一步的,外螺纹套4内孔设置为与弹簧11接触端的小孔41和小孔下部的大孔42,所述小孔41与大孔42同轴设置,小孔41的直径小于弹簧11的大径同时与滑杆13的弹簧安装段135间隙配合;便于挡住弹簧11的底端,弹簧11的顶部通过滑动段134的底部挡住,同时弹簧安装段135可在外螺纹套4内移动;大孔42内可容纳表头61顶部,便于表头61与滑杆13底端接触。Further, the inner hole of the outer threaded
优选的,测头14包括筒体141和与筒体141相连的第一凸台142,所述筒体141设置在滑杆13的测头安装段132,所述筒体141外壁上设置有垂直筒壁设置的第二螺纹孔143,该第二螺纹孔143内设置有紧定螺钉8;所述测头安装段132上开设有限位孔137,该紧定螺钉8端部设置在限位孔137内,通过紧定螺钉8穿过第二螺纹孔143并设置在该限位孔137内限制测头14的转动及上下移动,并且在测头14上部设置螺母7再次压紧测头14,使其安装牢固。Preferably, the measuring
优选的,支座3设置为拱形,该拱形顶部中间贯穿设置有表头安装孔32,表头安装孔32内套合有衬套5,衬套5设置为有缺口52的C形环状结构,所述衬套5抱紧表头61并卡紧在表头安装孔32内,类似与膨胀套;支座3的拱形顶部两侧对称设置有第三螺纹孔31,该第三螺纹孔31与量具体12底部的安装凸台124上的固定孔125相适配并通过第二螺钉17紧固;支座3设置成拱形结构便于安装千分表6,所述支座3设置在底座1上,所述底座1成U型结构,所述底座1通过第一螺钉2固定在支座3的底部。Preferably, the
优选的,衬套5外壁中间设置有环形槽51,支座3侧面设置有垂直表头安装孔32的第四螺纹孔33,该所述第四螺纹孔33与该环形槽51连通,所述第四螺纹孔33内设置有滚花螺钉10,所述滚花螺钉10拧入的端部设置在环形槽51内。Preferably, an
本发明具体使用时,如图1-图13所示,使用前,先旋松滚花螺钉10,用校对块15的A面勾住测头14的C面,压住测头14向下运动,使校对块15的B面放在量具体12的D面上与之紧密贴合;接着旋松滚花螺钉10,调整千分表,使千分表6的表头61与滑杆13的弹簧安装段135端面接触且指针对准零位;然后旋紧滚花螺钉10,将千分表6通过轴套5抱紧,使千分表6、衬套5与支座3无相对运动;在确保千分表6指针对准零位后,即可开始测量。When the present invention is used specifically, as shown in Figures 1-13, before use, loosen the
测量时,先把工件的被测平面E面勾住测头14的C面,压住测头14带动滑杆13克服弹簧力的作用一起向下运动,使工件F面放在量具体D面上与之紧密贴合;此时,弹簧11被继续压缩,滑杆13的弹簧安装段135端面顶着千分表6的表头61,使其压入表轴套中;与此同时,千分表6的指针旋转而显示读数,根据指针距零位的偏离量确定工件尺寸是否合格。When measuring, hook the surface E of the workpiece to be measured on the surface C of the
当测量结束后,取走工件,滑杆13在弹簧力的作用下上移,千分表6的表头复位,指针回到零位。如果测量时压下表头61的力过大或过小时,可以把外螺纹套4旋低或调高,使压缩弹簧11的初始压缩量减小(预压力小)或增大,使用起来比较灵活。When the measurement is over, the workpiece is removed, the
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