WO2018090353A1 - Device for testing parallelism between workbench of bending machine and main shaft holes of frame - Google Patents

Device for testing parallelism between workbench of bending machine and main shaft holes of frame Download PDF

Info

Publication number
WO2018090353A1
WO2018090353A1 PCT/CN2016/106518 CN2016106518W WO2018090353A1 WO 2018090353 A1 WO2018090353 A1 WO 2018090353A1 CN 2016106518 W CN2016106518 W CN 2016106518W WO 2018090353 A1 WO2018090353 A1 WO 2018090353A1
Authority
WO
WIPO (PCT)
Prior art keywords
base
workbench
main shaft
frame
parallel
Prior art date
Application number
PCT/CN2016/106518
Other languages
French (fr)
Chinese (zh)
Inventor
王金宏
Original Assignee
王金宏
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 王金宏 filed Critical 王金宏
Priority to PCT/CN2016/106518 priority Critical patent/WO2018090353A1/en
Publication of WO2018090353A1 publication Critical patent/WO2018090353A1/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00Measuring arrangements characterised by the use of mechanical means
    • G01B5/24Measuring arrangements characterised by the use of mechanical means for measuring angles or tapers; for testing the alignment of axes
    • G01B5/25Measuring arrangements characterised by the use of mechanical means for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes

Abstract

A device for testing parallelism between a workbench (1a) of a bending machine and main shaft holes (1b) of a frame (1). A wallboard is provided on right and left sides of the frame (1). A workbench (1a) is disposed at a middle portion of the frame (1) between the wallboards on the two sides and in a cross direction. The main shaft holes (1b) for mounting a main shaft are provided on upper portions of the two side wallboards, respectively, and the two main shaft holes (1b) are coaxial. A guide rail mounting surface (1c) perpendicular to the workbench (1a) is provided on a front end of an upper portion of each of the two side wallboards. A base (2) is placed on the workbench (1a), and an upper surface of the base (2) is parallel to a lower surface thereof. Front and rear side surfaces of the base (2) are parallel, and are perpendicular to the lower surface of the base (2). The rear side surface of the base (2) is connected to the guide rail mounting surface (1c) by means of bolts. A 90-degree die (3) is fixedly mounted to an upper portion of the rear side surface of the base (2). Two work surfaces of the 90-degree die (3) are perpendicular. A sliding board (4) is mounted on an upper surface of the 90-degree die (3), and an upper end surface and lower end surface of the sliding board (4) are parallel. A dial indicator (6) along with a magnetic indicator base (5) thereof are placed on the upper surface of the sliding board (4). The device of the present invention has a simple structure, is easy to manufacture, enables fast and convenient assembly, and provides accurate results, thus reducing a testing cost.

Description

一种检测折弯机工作台与机架主轴孔平行度的装置Device for detecting parallelism between bending machine table and rack spindle hole 技术领域Technical field
本发明涉及一种检测装置,特别涉及一种检测折弯机工作台与机架主轴孔平行度的装置。The invention relates to a detecting device, in particular to a device for detecting the parallelism between a bending machine table and a spindle hole of a frame.
背景技术Background technique
折弯机主要用于对薄板进行折弯,机架的左右两侧分别设有墙板,机架中部在两侧墙板之间横向设置有工作台,两侧墙板的上部分别设有主轴孔,两主轴孔共轴线,主轴的两端分别安装于相应的主轴孔中;两侧墙板的上部前端分别设有与工作台相垂直的导轨安装面,导轨固定在导轨安装面上,滑块可沿导轨上下移动。The bending machine is mainly used for bending the thin plate, and the left and right sides of the frame are respectively provided with wall plates, and the working table is arranged laterally between the two side wall plates in the middle of the frame, and the upper part of the two side wall plates respectively are provided with a main shaft The hole and the two spindle holes are coaxial, and the two ends of the spindle are respectively installed in the corresponding spindle holes; the upper front ends of the two side wall plates are respectively provided with rail mounting faces perpendicular to the table, and the guide rails are fixed on the rail mounting surface, sliding The block can move up and down along the rail.
由于折弯机的幅宽通常比较宽,主轴的轴线与工作台顶面的平行度十分重要。要保证主轴安装后,其轴线与工作台的顶面相平行,首先要保证两主轴孔的轴线与工作台的顶面相平行。Since the width of the bending machine is usually wide, the parallelism between the axis of the main shaft and the top surface of the table is very important. To ensure that the axis of the spindle is parallel to the top surface of the table after installation, first ensure that the axes of the two spindle holes are parallel to the top surface of the table.
现有的折弯机通过数控机床保证主轴孔的加工精度,无专门的检测设备。在占用生产设备的前提下,导致生产资源的浪费。The existing bending machine guarantees the machining precision of the spindle hole through the numerical control machine tool, and there is no special testing equipment. Under the premise of occupying production equipment, it leads to waste of production resources.
发明内容Summary of the invention
本发明的目的在于,克服现有技术中存在的问题,提供一种检测折弯机工作台与机架主轴孔平行度的装置,结构简单,制造容易,安装方便快捷,且检测结果准确。The object of the present invention is to overcome the problems existing in the prior art and provide a device for detecting the parallelism between the bending machine table and the spindle hole of the frame, which has the advantages of simple structure, easy manufacture, convenient and quick installation, and accurate detection result.
为解决以上技术问题,本发明的一种检测折弯机工作台与机架主轴孔平行度的装置,机架左右两侧分别设有墙板,机架中部在两侧墙板之间横向设置有工作台,两侧墙板的上部分别设有安装主轴的主轴孔,两所述主轴孔共轴线,两侧墙板的上部前端分别设有与所述工作台相垂直的导轨安装面,所述工作台上放置有底座,所述底座的顶面与底面相互平行,所述底座的前后侧面相互平行且均垂直于底座的底面,所述底座的后侧面通过螺栓与所述导轨安装面相连接,且所述底座的后侧面上部固定安装有直角模,所述直角模的两工作面相互垂直,且所述直角模的顶面上安装有滑板,所述滑板的上下端面相互平行,百分表连同其磁性表座放置在所述滑板的顶面上。In order to solve the above technical problem, the device for detecting the parallelism between the bending machine working table and the spindle hole of the rack is provided with wall panels respectively on the left and right sides of the rack, and the middle portion of the rack is horizontally disposed between the two side wall panels. There is a workbench, and upper portions of the side wall panels are respectively provided with spindle holes for mounting the main shaft, the two spindle holes are coaxial, and the upper front ends of the side wall panels are respectively provided with rail mounting faces perpendicular to the table. A base is placed on the workbench, and the top surface and the bottom surface of the base are parallel to each other. The front and rear sides of the base are parallel to each other and perpendicular to the bottom surface of the base, and the rear side of the base is connected to the rail mounting surface by bolts. And a right angle die is fixedly mounted on an upper portion of the rear side surface of the base, the two working faces of the right angle die are perpendicular to each other, and a sliding plate is mounted on a top surface of the right angle die, and the upper and lower end faces of the sliding plate are parallel to each other, and the percentage The watch, along with its magnetic table, is placed on the top surface of the skateboard.
相对于现有技术,本发明取得了以下有益效果:工作台的顶面作为基准面,底座的后侧面与导轨安装面相连接可以起到稳定作用,百分表的磁性表座吸在滑板上,滑板可以在直角模上任意滑动。检测时,首先将百分表置于机架右侧的主轴孔内,百分表的触头下端分别顶在主轴孔下缘的最低部位,移动滑板使百分表读值为最小,百分表沿右侧主轴孔的宽度 方向移动,记下右侧主轴孔的左右两端部的百分表读数最小值,取左右两端部百分表读数的最小值之和的一半为该右侧主轴孔的最小值,并记下该最小值。用同样方法,采用相同的底座、直角模、滑板、磁性表座及百分表检测机架的左侧主轴孔,左侧主轴孔与右侧主轴孔的百分表读数最小值的差值就是主轴孔中心线对工作台面的平行度误差。也可将百分表置于主轴孔内的上端测量,相应的应记下两端部百分表读数的最大值。本发明结构简单,制造容易,安装方便快捷,且检测结果准确,可以避免采购高档的检测仪器,降低了检测成本。Compared with the prior art, the present invention achieves the following beneficial effects: the top surface of the workbench serves as a reference surface, and the rear side surface of the base is connected with the rail mounting surface to stabilize the function, and the magnetic table of the dial gauge is sucked on the skateboard. The skateboard can slide freely on the right angle mold. When testing, first place the dial indicator in the spindle hole on the right side of the rack. The lower end of the contact of the dial indicator is placed at the lowest part of the lower edge of the spindle hole. Move the slide to minimize the reading of the dial indicator. The width of the spindle hole along the right side of the table Move in the direction, record the minimum value of the dial gauge reading at the left and right ends of the right spindle hole, and take the half of the sum of the minimum values of the left and right dial gauge readings as the minimum value of the right spindle hole. The minimum value is below. In the same way, the same base, right angle die, slide, magnetic table and dial indicator are used to detect the left spindle hole of the frame. The difference between the minimum of the dial gauge readings of the left spindle hole and the right spindle hole is The parallelism error of the center hole of the spindle hole to the work surface. The dial gauge can also be placed at the upper end of the spindle bore, and the maximum value of the dial gauge reading at both ends should be noted accordingly. The invention has the advantages of simple structure, easy manufacture, convenient and quick installation, and accurate detection result, can avoid purchasing high-grade testing instruments and reduce the testing cost.
作为本发明的优选方案,所述底座的后侧面上设有腰形长槽,螺栓穿过所述腰形长槽将所述底座固定在所述导轨安装面上。采用腰形长槽可以便于找到导轨安装面上的螺栓孔。As a preferred aspect of the present invention, the rear side of the base is provided with a waist-shaped long groove through which the bolt is fixed to the rail mounting surface. The use of a long waist groove makes it easy to find bolt holes on the mounting surface of the rail.
附图说明DRAWINGS
下面结合附图和具体实施方式对本发明作进一步详细的说明,附图仅提供参考与说明用,非用以限制本发明。The present invention will be further described in detail with reference to the accompanying drawings and the accompanying drawings.
图1为本发明检测折弯机工作台与机架主轴孔平行度的装置的主视图。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front elevational view of the apparatus for detecting the parallelism of a bench of a bending machine to a spindle bore of a frame.
图2为图1的左视图。Figure 2 is a left side view of Figure 1.
图中:1.机架;1a.工作台;1b.主轴孔;1c.导轨安装面;2.底座;2a.腰形长槽;3.直角模;4.滑板;5.磁性表座;6.百分表。In the figure: 1. rack; 1a. workbench; 1b. spindle hole; 1c. rail mounting surface; 2. base; 2a. waist long slot; 3. right angle die; 4. slide; 5. magnetic table; 6. Dial indicator.
具体实施方式detailed description
如图1所示,本发明检测折弯机工作台与机架主轴孔平行度的装置,机架1左右两侧分别设有墙板,机架1中部在两侧墙板之间横向设置有工作台1a,两侧墙板的上部分别设有安装主轴的主轴孔1b,两主轴孔1b共轴线,两侧墙板的上部前端分别设有与工作台1a相垂直的导轨安装面1c,工作台1a上放置有底座2,底座2的顶面与底面相互平行,底座2的前后侧面相互平行且均垂直于底座2的底面,底座2的后侧面通过螺栓与导轨安装面1c相连接,且底座2的后侧面上部固定安装有直角模3,直角模3的两工作面相互垂直,且直角模3的顶面上安装有滑板4,滑板4的上下端面相互平行,百分表6连同其磁性表座5放置在滑板4的顶面上。As shown in FIG. 1 , the present invention detects a device for parallelism between a bending machine table and a spindle hole of a rack, and wall panels are respectively disposed on the left and right sides of the frame 1 , and the middle portion of the frame 1 is laterally disposed between the wall plates on both sides. The upper part of the two side wall panels is respectively provided with a spindle hole 1b for mounting a main shaft, the two spindle holes 1b are coaxial, and the upper front ends of the side wall plates are respectively provided with rail mounting surfaces 1c perpendicular to the table 1a, and work. A base 2 is placed on the table 1a. The top surface and the bottom surface of the base 2 are parallel to each other. The front and rear sides of the base 2 are parallel to each other and perpendicular to the bottom surface of the base 2. The rear side of the base 2 is connected to the rail mounting surface 1c by bolts, and The right side of the rear side of the base 2 is fixedly mounted with a right angle die 3, the two working faces of the right angle die 3 are perpendicular to each other, and the top surface of the right angle die 3 is mounted with a slide plate 4, and the upper and lower end faces of the slide plate 4 are parallel to each other, and the dial gauge 6 together with the same The magnetic table 5 is placed on the top surface of the slider 4.
底座2的后侧面上设有腰形长槽2a,螺栓穿过腰形长槽2a将底座2固定在导轨安装面1c上。采用腰形长槽2a可以便于找到导轨安装面1c上的螺栓孔。A lug-shaped long groove 2a is provided on the rear side of the base 2, and the bolt is fixed to the rail mounting surface 1c through the waist-shaped long groove 2a. The use of the lug long groove 2a makes it easy to find the bolt holes on the rail mounting surface 1c.
工作台1a的顶面作为基准面,底座2的后侧面与导轨安装面1c相连接可以起到稳定作用,百分表6的磁性表座5吸在滑板4上,滑板4可以在直角模3上任意滑动。检测时,首先将百分表6置于机架1右侧的主轴孔1b内,百分表6的触头下端分别顶在主轴孔1b下缘的最低部位,移动滑板4使百分表6读值为最小,百分表6沿右侧主轴孔的宽度方向移动, 记下右侧主轴孔的左右两端部的百分表读数最小值,取左右两端部百分表读数的最小值之和的一半为该右侧主轴孔的最小值,并记下该最小值。用同样方法,采用相同的底座2、直角模3、滑板4、磁性表座5及百分表6检测机架1的左侧主轴孔,左侧主轴孔与右侧主轴孔的百分表读数最小值的差值就是主轴孔中心线对工作台1a面的平行度误差。也可将百分表6置于主轴孔内的上端测量,相应的应记下两端部百分表读数的最大值。本发明结构简单,制造容易,安装方便快捷,且检测结果准确,可以避免采购高档的检测仪器,降低了检测成本。The top surface of the table 1a serves as a reference surface, and the rear side of the base 2 is connected to the rail mounting surface 1c for stabilization. The magnetic table 5 of the dial gauge 6 is attracted to the slider 4, and the slider 4 can be at the right angle mold 3. Slide anywhere. During the test, firstly, the dial indicator 6 is placed in the spindle hole 1b on the right side of the rack 1. The lower end of the contact of the dial indicator 6 is respectively placed at the lowest position of the lower edge of the spindle hole 1b, and the slide plate 4 is moved to make the dial indicator 6 The reading value is the smallest, and the dial indicator 6 moves along the width of the right spindle hole. Make a note of the minimum reading of the dial gauge at the left and right ends of the right spindle hole. Take the half of the sum of the minimum readings of the left and right dial gauges as the minimum value of the right spindle hole and record the minimum. value. In the same way, the same base 2, right angle die 3, slide 4, magnetic table 5 and dial indicator 6 are used to detect the left spindle hole of the frame 1, and the dial gauge reading of the left spindle hole and the right spindle hole. The difference between the minimum values is the parallelism error of the center hole of the spindle hole to the surface of the table 1a. The dial gauge 6 can also be placed at the upper end of the spindle bore, and the maximum value of the dial gauge reading at both ends should be noted accordingly. The invention has the advantages of simple structure, easy manufacture, convenient and quick installation, and accurate detection result, can avoid purchasing high-grade testing instruments and reduce the testing cost.
以上所述仅为本发明之较佳可行实施例而已,非因此局限本发明的专利保护范围。除上述实施例外,本发明还可以有其他实施方式。凡采用等同替换或等效变换形成的技术方案,均落在本发明要求的保护范围内。本发明未经描述的技术特征可以通过或采用现有技术实现,在此不再赘述。 The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention. Other than the above-described embodiments, the present invention may have other embodiments. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope of the present invention. The technical features that are not described in the present invention can be implemented by using or adopting the prior art, and details are not described herein again.

Claims (2)

  1. 一种检测折弯机工作台与机架主轴孔平行度的装置,机架左右两侧分别设有墙板,机架中部在两侧墙板之间横向设置有工作台,两侧墙板的上部分别设有安装主轴的主轴孔,两所述主轴孔共轴线,两侧墙板的上部前端分别设有与所述工作台相垂直的导轨安装面,其特征在于:所述工作台上放置有底座,所述底座的顶面与底面相互平行,所述底座的前后侧面相互平行且均垂直于底座的底面,所述底座的后侧面通过螺栓与所述导轨安装面相连接,且所述底座的后侧面上部固定安装有直角模,所述直角模的两工作面相互垂直,且所述直角模的顶面上安装有滑板,所述滑板的上下端面相互平行,百分表连同其磁性表座放置在所述滑板的顶面上。The utility model relates to a device for detecting the parallelism between the bending machine working table and the spindle hole of the rack, wherein the left and right sides of the rack are respectively provided with wall panels, and in the middle of the rack, a working platform is arranged laterally between the two side wall panels, and the two side wall panels are The upper part is respectively provided with a spindle hole for mounting a spindle, and the two spindle holes are coaxial, and the upper front ends of the side wall plates are respectively provided with rail mounting surfaces perpendicular to the table, and the utility model is characterized in that: a base having a top surface and a bottom surface parallel to each other, the front and rear sides of the base being parallel to each other and perpendicular to a bottom surface of the base, the rear side of the base being connected to the rail mounting surface by a bolt, and the base The upper part of the rear side surface is fixedly mounted with a right angle die, the two working faces of the right angle die are perpendicular to each other, and the top surface of the right angle die is mounted with a sliding plate, the upper and lower end faces of the sliding plate are parallel to each other, and the dial gauge together with the magnetic table thereof The seat is placed on the top surface of the skateboard.
  2. 根据权利要求1所述的检测折弯机工作台与机架主轴孔平行度的装置,其特征在于:所述底座的后侧面上设有腰形长槽,螺栓穿过所述腰形长槽将所述底座固定在所述导轨安装面上。 The device for detecting the parallelism between a bending machine table and a spindle hole of a rack according to claim 1, wherein a waist-shaped long groove is formed on a rear side of the base, and a bolt passes through the waist long groove. The base is fixed to the rail mounting surface.
PCT/CN2016/106518 2016-11-20 2016-11-20 Device for testing parallelism between workbench of bending machine and main shaft holes of frame WO2018090353A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/106518 WO2018090353A1 (en) 2016-11-20 2016-11-20 Device for testing parallelism between workbench of bending machine and main shaft holes of frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/106518 WO2018090353A1 (en) 2016-11-20 2016-11-20 Device for testing parallelism between workbench of bending machine and main shaft holes of frame

Publications (1)

Publication Number Publication Date
WO2018090353A1 true WO2018090353A1 (en) 2018-05-24

Family

ID=62145066

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/106518 WO2018090353A1 (en) 2016-11-20 2016-11-20 Device for testing parallelism between workbench of bending machine and main shaft holes of frame

Country Status (1)

Country Link
WO (1) WO2018090353A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110530241A (en) * 2019-08-15 2019-12-03 成都中车四方轨道车辆有限公司 A kind of coaster body parallelism measuring apparatus
CN112179256A (en) * 2020-10-28 2021-01-05 洛阳万基铝加工有限公司 Roller system parallelism measuring tool and using method thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2311583A2 (en) * 2009-10-14 2011-04-20 TRUMPF Maschinen Austria GmbH & Co. KG. Method for measuring the thickness of a workpiece with a bending machine and such bending machine
CN102069117A (en) * 2010-11-15 2011-05-25 昆山市汇新电气机械有限公司 Small bending machine
CN202158827U (en) * 2011-07-01 2012-03-07 河北省首钢迁安钢铁有限责任公司 Adjustable measuring device for windage of double row conical bearing
CN202329522U (en) * 2011-12-12 2012-07-11 安徽长江机床制造(集团)有限公司 Upper mold planeness detecting device for bending machine
CN203132484U (en) * 2013-03-07 2013-08-14 湖南耐普泵业有限公司 Parallelism detection apparatus
CN203337073U (en) * 2013-02-28 2013-12-11 江西气体压缩机有限公司 Coaxial detecting tool
JP2015221447A (en) * 2014-05-22 2015-12-10 株式会社アマダホールディングス Method and device for bending angle detection

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2311583A2 (en) * 2009-10-14 2011-04-20 TRUMPF Maschinen Austria GmbH & Co. KG. Method for measuring the thickness of a workpiece with a bending machine and such bending machine
CN102069117A (en) * 2010-11-15 2011-05-25 昆山市汇新电气机械有限公司 Small bending machine
CN202158827U (en) * 2011-07-01 2012-03-07 河北省首钢迁安钢铁有限责任公司 Adjustable measuring device for windage of double row conical bearing
CN202329522U (en) * 2011-12-12 2012-07-11 安徽长江机床制造(集团)有限公司 Upper mold planeness detecting device for bending machine
CN203337073U (en) * 2013-02-28 2013-12-11 江西气体压缩机有限公司 Coaxial detecting tool
CN203132484U (en) * 2013-03-07 2013-08-14 湖南耐普泵业有限公司 Parallelism detection apparatus
JP2015221447A (en) * 2014-05-22 2015-12-10 株式会社アマダホールディングス Method and device for bending angle detection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110530241A (en) * 2019-08-15 2019-12-03 成都中车四方轨道车辆有限公司 A kind of coaster body parallelism measuring apparatus
CN112179256A (en) * 2020-10-28 2021-01-05 洛阳万基铝加工有限公司 Roller system parallelism measuring tool and using method thereof

Similar Documents

Publication Publication Date Title
CN202195778U (en) Special check fixture used for measuring position of exhaust pipe hole of automobile
WO2018090353A1 (en) Device for testing parallelism between workbench of bending machine and main shaft holes of frame
CN203704847U (en) Cambered workpiece detection device
CN204027548U (en) A kind of device of Measurement accuracy Axle Surface roughness
CN106017259A (en) Apparatus for measuring linearity of elevator guide rail and measuring method thereof
CN203843832U (en) Straight rule with holes
CN202836439U (en) Rapid roller shaft measurement tool
CN102679831B (en) Inspection bench detector of engineering machine cement balance weight
CN102183187B (en) Method for assembling and positioning large-size machine tool body
CN205981022U (en) Specific high inside width measuring tool of fork truck portal channel -section steel
CN201104211Y (en) Universal angle alignment measuring gage
CN203611148U (en) Support test tooling
CN206583393U (en) A kind of stamping parts of automobile detection means
CN202420360U (en) Automobile tail light support measurement checking tool
CN205785042U (en) Survey flatness frock
CN204388758U (en) A kind of measurement molded line milling cutter special sample frame
CN213120347U (en) Inductance inspection fixture
CN204974814U (en) Detection instrument of punching press part size
CN201215476Y (en) Detection device for straightness of guide rail
CN204438971U (en) A kind of manganese steel frog point rail decreasing value dedicated test measurer
CN211601769U (en) Measuring device
CN203534456U (en) Porous checking tool for guide rail of elevator
CN207888437U (en) A kind of line slide rail grinding precision measurement apparatus
CN203116689U (en) Planeness detecting tool for automobile pressure bearing framework
CN216634090U (en) Multi-rib-strip wallboard appearance inspection tool

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16921752

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16921752

Country of ref document: EP

Kind code of ref document: A1