CN218884866U

CN218884866U - Rod flatness detection device

Info

Publication number: CN218884866U
Application number: CN202122946529.0U
Authority: CN
Inventors: 孙佳诚
Original assignee: Ningbo Jiacheng Machinery Co ltd
Current assignee: Ningbo Jiacheng Machinery Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2023-04-18
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a device for detecting the straightness of a rod piece, which comprises a workbench, a plurality of detection units and two supporting seats; the two supporting seats are respectively fixed on two sides of the workbench, and the rod piece to be tested can be rotatably and horizontally placed in each supporting seat; each detection unit is horizontally arranged at one end of the workbench at intervals and comprises detection instruments, and measuring rods of the detection instruments abut against the outer peripheral wall of the rod piece at the same angle; the utility model has the advantages that the plurality of detection units are arranged on the workbench to detect the straightness of the rod piece, so that the detection is convenient, the precision is high, and the product quality can be effectively improved; the utility model discloses a gyro wheel that multiunit symmetry set up fixes the member in every standing groove, avoids it to rock when conveniently rotating the member and produces the influence to measuring.

Description

Rod flatness detection device

Technical Field

The utility model relates to the technical field of machinery, especially, relate to a straightness detection device of member.

Background

The member is around production and processing, because self and external influence can produce certain deformation, influences the straightness of member, can cause unfavorable influence to production and processing and follow-up use, and at present to the straightness detection of member self mostly rely on personnel's range estimation, can't effectually learn the concrete degree of buckling of member, lack simple and easy audio-visual member straightness measuring device among the prior art, can't satisfy the production needs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a member straightness detection device is provided to solve the problem that prior art lacks the device of measuring straightness.

In order to solve the technical problem, the rod straightness detection device provided by the utility model comprises a workbench, a plurality of detection units and two supporting seats; the two supporting seats are respectively fixed on two sides of the workbench, and the rod piece to be tested can be rotatably and horizontally placed in each supporting seat; every detecting element all sets up in workstation one end at the equal horizontal interval, and every detecting element all includes instrumentation, and every instrumentation's measuring staff all offsets with the periphery wall of member with the same angle.

Preferably, each detection unit comprises a mounting seat and a screw; each mounting seat comprises a locking block fixedly connected with the workbench, a first locking part and a second locking part are arranged on one side of each locking block, a clamping gap is formed between each first locking part and each second locking part, notches symmetrical to the clamping gap are obliquely arranged on each first locking part and each second locking part, and each notch is sleeved with a measuring rod sleeve of a detecting instrument; each screw passes through the first locking part and is in threaded connection with the second locking part so as to enable the first locking part and the second locking part to be close to each other.

Preferably, each locking block is provided with a through hole communicated with the clamping gap.

Preferably, each supporting seat comprises a fixing plate, two baffle plates and two rollers; each fixed plate is fixedly connected with one end of the workbench, each two baffles are fixedly connected with one fixed plate, each baffle is provided with a placing groove, and the rod piece is horizontally placed in each placing groove; every group is equipped with two gyro wheels along the equal symmetry of axis of member between the fixed plate of every group, and every gyro wheel all closely laminates with the periphery wall of member, and the axis of every gyro wheel all is higher than the axis of member for avoid the member to produce radial displacement in the standing groove.

Preferably, each roller 33 is made of 304 cr-ni stainless steel.

Preferably, the surface roughness of each roller 33 is Ra 3.2.

After the structure more than adopting, compared with the prior art, the utility model, have following advantage: the utility model discloses a set up a plurality of detecting element and detect the member straightness on the workstation, convenient detection, and the precision is higher, can effectively improve product quality; the utility model discloses a gyro wheel that multiunit symmetry set up fixes the member in every standing groove, avoids it to rock when conveniently rotating the member and produces the influence to measuring.

Drawings

Fig. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is an enlarged view of a portion of the area A of FIG. 1;

FIG. 3 is a left side view of the present invention;

FIG. 4 is a schematic diagram of the three-dimensional structure of the detecting unit of the present invention;

FIG. 5 is a left side view of the detecting unit of the present invention;

fig. 6 is a cross-sectional view taken along line B-B of fig. 5 in accordance with the present invention;

fig. 7 is a schematic view of the internal structure of the mounting seat of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 7, the device for detecting the straightness of a rod according to the present invention includes a worktable 1, a plurality of detecting units 2, and two supporting bases 3; the two supporting seats 3 are respectively fixed on two sides of the workbench 1, and the rod piece 4 to be tested is rotatably and horizontally placed in each supporting seat 3; every detecting element 2 is the level interval setting in workstation 1 one end, and every detecting element 2 all includes instrumentation 25, and the measuring staff 252 of every instrumentation 25 all offsets with the periphery wall of member 4 with the same angle, in this embodiment the preferred percentage table that adopts of instrumentation 25, the member 4 can be surveyed the crooked degree of the outer wall portion of the member 4 that offsets with measuring staff 252 through analysis instrumentation 25 reading when rotatory.

Each detection unit 2 comprises a mounting seat 21 and a screw 236; each mounting seat 21 comprises a locking block 23 fixedly connected with the workbench 1, one side of each locking block 23 is provided with a first locking part 232 and a second locking part 233, a clamping gap 231 is formed between each group of the first locking parts 232 and the second locking parts 233, notches 24 symmetrical about the clamping gap 231 are obliquely arranged on each group of the first locking parts 232 and the second locking parts 233, and each group of the notches 24 is sleeved with a measuring rod sleeve 251 of one detecting instrument 25; each screw 236 is screwed with the second locking portion 233 through the first locking portion 232 to draw the first locking portion 232 and the second locking portion 233 toward each other; in this embodiment, an included angle between the axis of each notch 24 and the horizontal direction shown in fig. 1 is 20 °, it should be noted that the included angle needs to be obtained according to the position relationship between the notch 24 and the rod 4, and the inclined angle can be changed by changing the position relationship between the notch 24 and the rod 4 during production, only by ensuring that the measuring rod 252 of each detecting instrument 25 is abutted against the outer peripheral wall of the rod 4, and the axis of each measuring rod 252 is intersected with the axis of the rod 4; in the embodiment, the first locking part 232 and the second locking part 233 are controlled to deform and approach each other by rotating the screw 236, so that the two notches 24 clamp the measuring rod sleeve 251 of the detecting instrument 25 for fixing; if the meter 25 is damaged or a higher-precision meter needs to be replaced, the first locking portion 232 and the second locking portion 233 can be easily replaced by rotating the screw 236 to separate them from each other.

Each locking block 23 is provided with a through hole 27 communicated with the clamping gap 231, and each through hole 27 is used for enabling the corresponding first locking part 232 and the corresponding second locking part 233 to be deformed more easily to clamp the measuring rod sleeve 251.

Each supporting seat 3 comprises a fixing plate 31, two baffle plates 32 and two rollers 33; each fixing plate 31 is fixedly connected with one end of the workbench 1, each two baffles 32 are fixedly connected with one fixing plate 31, each baffle 32 is provided with a placing groove 34, and the rod piece 4 is horizontally placed in each placing groove 34; two rollers 33 are symmetrically arranged between each group of fixing plates 31 along the axis of the rod 4, each roller 33 is tightly attached to the peripheral wall of the rod 4, and the axis of each roller 33 is higher than the axis of the rod 4, so that the rod 4 is prevented from generating radial displacement in the placing groove 34.

When the flatness is detected specifically, firstly, a worker sequentially penetrates the rod piece 4 to be detected through each placing groove 34, so that the rod piece is pressed in each placing groove 34 by each group of symmetrical rollers 33 as shown in fig. 3, and the rod piece 4 is prevented from shaking to influence a measurement result during detection; the staff slowly rotates the member afterwards, observes simultaneously and takes notes every measuring instrument 25's of this process change of reading, and the straightness that can audio-visual record member 4 is changed through the reading of every measuring instrument 25 of analysis, and it is convenient to detect, and is efficient, helps guaranteeing product quality.

Each roller 33 is made of 304 chromium-nickel stainless steel, and the 304 chromium-nickel stainless steel is high in corrosion resistance, so that the influence of rust on the surface of each roller 33 on measurement precision can be effectively prevented, and the service life of the device is prolonged.

Each roller 33 is processed by finish milling, the surface roughness of each roller 33 is Ra 3.2, and the processing precision of the surface of each roller 33 is controlled to reduce the position error of the rod 4 arranged on the supporting seat 3.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention, but should not be construed as limiting the claims, and the present invention is not limited to the above-described embodiments, but may be modified in various ways. In summary, all changes that can be made within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims

1. A rod flatness detection device is characterized by comprising a workbench (1), a plurality of detection units (2) and two supporting seats (3); the two supporting seats (3) are respectively fixed on two sides of the workbench (1), and the rod piece (4) to be tested is rotatably and horizontally placed in each supporting seat (3); every detecting element (2) equal horizontal interval sets up in workstation (1) one end, and every detecting element (2) all includes instrumentation (25), and measuring staff (252) of every instrumentation (25) all offsets with the periphery wall of same angle and member (4).

2. The rod flatness detecting device according to claim 1, characterized in that each detecting unit (2) includes a mounting seat (21) and a screw (236); each mounting seat (21) comprises a locking block (23) fixedly connected with the workbench (1), a first locking part (232) and a second locking part (233) are arranged on one side of each locking block (23), a clamping gap (231) is formed between each group of first locking parts (232) and each group of second locking parts (233), notches (24) symmetrical about the clamping gap (231) are obliquely arranged on each group of first locking parts (232) and each group of second locking parts (233), and each group of notches (24) is sleeved with a measuring rod sleeve (251) of one detecting instrument (25); each screw (236) is threaded through the first locking portion (232) and the second locking portion (233) to draw the first locking portion (232) and the second locking portion (233) toward each other.

3. The rod flatness detecting device according to claim 2, wherein each of the locking blocks (23) is provided with a through hole (27) communicating with the clamping gap (231).

4. The rod flatness detecting device according to claim 1, characterized in that each support seat (3) includes a fixed plate (31), two baffles (32) and two rollers (33); each fixing plate (31) is fixedly connected with one end of the workbench (1), each two baffle plates (32) are fixedly connected with one fixing plate (31), each baffle plate (32) is provided with a placing groove (34), and the rod piece (4) is horizontally placed in each placing groove (34); two rollers (33) are symmetrically arranged between each group of fixing plates (31) along the axis of the rod piece (4), each roller (33) is tightly attached to the outer peripheral wall of the rod piece (4), and the axis of each roller (33) is higher than the axis of the rod piece (4) so as to prevent the rod piece (4) from generating radial displacement in the placing groove (34).

5. The bar straightness inspection device according to claim 4, wherein each of the rollers (33) is made of 304 Cr-Ni stainless steel.

6. The bar flatness detecting apparatus of claim 4, wherein each roller (33) has a surface roughness of Ra 3.2.