CN212621883U - Laser gauge length instrument for reinforcing steel bar - Google Patents

Laser gauge length instrument for reinforcing steel bar Download PDF

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Publication number
CN212621883U
CN212621883U CN202020728191.4U CN202020728191U CN212621883U CN 212621883 U CN212621883 U CN 212621883U CN 202020728191 U CN202020728191 U CN 202020728191U CN 212621883 U CN212621883 U CN 212621883U
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CN
China
Prior art keywords
laser
gauge length
clamping device
steel bar
laser head
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN202020728191.4U
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Chinese (zh)
Inventor
费壮
王宏畅
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Nanjing Forestry University
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Nanjing Forestry University
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Publication date
Application filed by Nanjing Forestry University filed Critical Nanjing Forestry University
Priority to CN202020728191.4U priority Critical patent/CN212621883U/en
Application granted granted Critical
Publication of CN212621883U publication Critical patent/CN212621883U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The utility model discloses a reinforcing bar laser scale distance appearance relates to the experimental technical field that uses of reinforcing bar mechanical properties. The laser gauge length instrument for the steel bars comprises a base, a V-shaped frame, a sliding clamping device, a support, a cross rod, a laser head, a traveling device and a power supply central control switch. The device is structurally characterized in that the clamping device can slide along the T-shaped groove to fix the position of the steel bar according to the test requirement, the laser head is provided with a pulley to slide transversely, and the V-shaped frame is provided with scale marks for precision checking of the scale distance and data observation after the steel bar tensile test. The utility model is simple in operation, reasonable in design, gauge length are accurate, adjustable interval, and novel structure can satisfy relevant experimental detection demand.

Description

Laser gauge length instrument for reinforcing steel bar
Technical Field
The utility model belongs to the technical field of the experimental device that uses of reinforcing bar mechanical properties and specifically relates to a reinforcing bar laser scale distance appearance is related to.
Background
The yield strength, tensile strength, elongation and other properties of the steel can be obtained through a tensile test, and the length dimension of the steel bar is marked by dotting on the surface of the steel bar through a steel bar gauge length instrument before test detection, so that the technical indexes of the steel such as the elongation, the reduction of area and the like can be measured after the tensile test. The traditional steel bar gauge length instrument mainly has the following problems: 1. the speed of dotting the gauge length is slower, efficiency is lower, and the degree of distinguishing and the precision of dotting the gauge length are not high simultaneously, cause follow-up experimental error easily, and can't accomplish the limit and check the precision. 2. Traditional reinforcing bar scale distance appearance all mainly uses hand formula as the main, through sharp-pointed steel syringe needle impactes reinforcing bar surface, and this kind of method causes reinforcing bar surface's damage easily, influences experimental effect. 3. The length of the steel bar is limited by the clamping device and the limit switch fixedly arranged on the positioning plate, so that long and short steel bars cannot be marked, and the application range of the steel bar is limited. 4. The gauge length appearance can only be used for the gauge length of dotting before tensile test, and the broken piece elongation after tensile test is measured, and test measurement personnel generally roughly piece together the broken piece, measure with slide caliper, but because steel is most circular and the operation of roughly piecing together of personnel can make the section still have the space, has further increaseed experimental error.
SUMMERY OF THE UTILITY MODEL
To the above situation, for solving the prior art defect, the utility model aims at providing a novel laser reinforcing bar gauge length appearance. The method has the advantages of high speed, high efficiency, high precision and identification degree, capability of measuring the elongation of the steel bar after the tensile test, and the like.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a laser distance measuring instrument for reinforcing steel bars comprises a base, a V-shaped frame, a sliding clamping device, a support, a laser head, a traveling device and a power supply central control switch. The structure is characterized in that the clamping device can slide along the groove to realize that the steel bar can be fixed according to the test requirement, and the laser head structure is provided with a pulley to realize the transverse sliding; the vertical central line of the laser head and the V-shaped groove line of the V-shaped frame are in the same vertical plane and are perpendicular to each other, so that accurate dotting and gauge length marking at the center of the steel bar are realized, and the surface of the V-shaped frame is provided with scale marks for accuracy check of dotting and data observation after the steel bar tensile test.
Further, the sliding clamping device and the corresponding groove are arranged in a T shape.
Further, the scale mark on the surface of the V-shaped frame is more than or equal to 20 cm.
Furthermore, the power supply central control switches are arranged on the surface of the base, the number of the buttons is four, the functions of the power supply central control switches are switching, starting and stopping, interval adjustment and resetting, and meanwhile, a liquid crystal display screen is added to facilitate observation of the current state of a tester.
Furthermore, two pulleys about the laser head sets up to set its bottom plate to the swallow-tail type in order to make things convenient for the dismantlement and the maintenance of laser head.
Because the utility model discloses a novel structural design to can obtain following beneficial effect:
1. the structure is simpler, adopts the laser formula to beat the reinforcing bar and to beat precision and speed that can show improvement was beaten, can not cause the damage to the reinforcing bar surface when the position that makes things convenient for follow-up experimental detection is observed.
2. Through power center control, the automation of the whole process can be realized, the labor is greatly reduced, and the detection work efficiency is improved.
3. The scale marks arranged on the surface of the V-shaped frame can be used for precision checking in the dotting and gauge length process on one hand, and can be used for detecting the subsequent elongation rate of the broken steel bar on the other hand, so that the novel steel bar gauge length instrument is a great innovation compared with the traditional steel bar gauge length instrument on the market.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a left side sectional view of the present invention;
fig. 3 is the structural schematic diagram of the laser head of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the laser dotting machine comprises a base 1, a V-shaped frame 2, a sliding clamping device 4, a support 5, a cross bar 6, a laser head and walking device 7 and a power supply central control switch 3. The V-shaped frame 2 is arranged on the base, and two ends of the V-shaped frame are filled with the filling materials so as to limit the sliding clamping device to slide out; the surface of the V-shaped frame 2 is provided with bidirectional scale marks with the length not less than 20 cm; the clamping device 4 can slide horizontally along the corresponding T-shaped groove on the V-shaped frame 2; the clamping device 4 is provided with a fixing nut 41 which is screwed up and down through a thread line on the fixing nut to realize the detachment and the fixation of the reinforcing steel bar.
The workpiece power supply central control switch is arranged on the surface of the base 1, is positioned behind the bracket 5 and is used for starting and stopping the laser head, adjusting the dotting distance and resetting the laser head.
The workpiece crossbar 6 is fixed by a bracket 5.
Corresponding sliding grooves are arranged on the V-shaped frame 2 and the cross rod 6 shown in figure 2 so as to realize free transverse movement of the clamping device and the laser head.
As shown in figure 3, pulleys 71 are arranged on the upper fixing block and the lower fixing block of the laser head, and the tail of the lower fixing block is separated in a dovetail form and used for disassembling and maintaining the laser head.
In the using process of the laser steel bar distance measuring instrument, firstly, two fixing nuts 41 are adjusted to appropriate positions, steel is placed in a V-shaped groove of a V-shaped frame 2, the middle position of the steel bar is adjusted to the middle of the V-shaped frame 2, the fixing nuts 41 are screwed to fix the steel bar, a power supply central control switch is turned on, a laser head is reset to an initial position through a reset button, a laser dotting interval is set, the laser head is turned on to dotte the surface of the steel bar, after the dotting is completed, precision inspection is carried out through scale marks on the surface of the V-shaped frame 2, the fixing nuts 41 are screwed to take out the steel with the completed scale distance to carry out a tensile test, steel fixing operation is repeated after the test is completed, tensile data are obtained through observing the scale marks, and the elongation after-. Therefore, the laser gauge length instrument for the steel bars has the advantages of high speed, high efficiency, high precision and identification degree, capability of measuring the elongation of the steel bars after a tensile test and the like.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims (5)

1. The utility model provides a reinforcing bar laser scale distance appearance, includes base, V type frame, slip clamping device, support, laser head and running gear, accuse switch in the power, its characterized in that sets up to the T type in clamping device slip department, sets up T type recess at the V type frame that corresponds to realize clamping device's free movement.
2. A laser gauge for steel reinforcement according to claim 1, wherein the V-shaped frame has two-way uniform graduations on its surface.
3. A laser gauge for measuring the length of steel bar according to claim 1, wherein said laser head has a pulley running unit and a lateral cross-bar has a groove for facilitating the running of the pulley.
4. The laser gauge length instrument for steel bars according to claim 1, characterized in that the vertical center line of the laser head and the V-shaped groove line of the V-shaped frame are in the same vertical plane and are perpendicular to each other.
5. The laser gauge length instrument for steel bars as claimed in claim 1, wherein the power supply central control switch is arranged on the base and is arranged in a form of four buttons plus a display screen.
CN202020728191.4U 2020-05-06 2020-05-06 Laser gauge length instrument for reinforcing steel bar Expired - Fee Related CN212621883U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020728191.4U CN212621883U (en) 2020-05-06 2020-05-06 Laser gauge length instrument for reinforcing steel bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020728191.4U CN212621883U (en) 2020-05-06 2020-05-06 Laser gauge length instrument for reinforcing steel bar

Publications (1)

Publication Number Publication Date
CN212621883U true CN212621883U (en) 2021-02-26

Family

ID=74725997

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020728191.4U Expired - Fee Related CN212621883U (en) 2020-05-06 2020-05-06 Laser gauge length instrument for reinforcing steel bar

Country Status (1)

Country Link
CN (1) CN212621883U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113059272A (en) * 2021-03-31 2021-07-02 芜湖造船厂有限公司 Laser scale distance dotting device and method for tensile sample
CN114166131A (en) * 2021-12-08 2022-03-11 郑州天宏工程检测有限公司 System for detecting elongation after fracture of steel bar and using method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113059272A (en) * 2021-03-31 2021-07-02 芜湖造船厂有限公司 Laser scale distance dotting device and method for tensile sample
CN114166131A (en) * 2021-12-08 2022-03-11 郑州天宏工程检测有限公司 System for detecting elongation after fracture of steel bar and using method thereof

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20210226

CF01 Termination of patent right due to non-payment of annual fee