CN218329816U - Portable straightness detection device - Google Patents

Abstract

The utility model relates to a portable straightness accuracy detection device belongs to the detection device field. Including laser emitter and scale plate subassembly, laser emitter and scale plate subassembly are fixed simultaneously on being surveyed the work piece, laser emitter includes the laser emitter head, elevating gear and laser base, and scale plate subassembly includes scale plate and unable adjustment base, and laser emitter's laser base is fixed on being surveyed the smooth terminal surface of work piece, and scale plate subassembly has the one side of scale to face laser emitter, fixes scale plate subassembly on being surveyed the work piece through unable adjustment base. The beneficial effects of the utility model are that: the laser emission device of the device is simple to adjust and convenient to operate, the scale plate component can measure the linearity change of two directions, and the scale plate component is in contact with a workpiece to be measured by adopting the roller, so that the friction resistance is small during movement, and the detection efficiency and the reliability of the linearity are greatly improved.

Description

Portable straightness detection device

Technical Field

The utility model relates to a portable straightness accuracy detection device belongs to detection device technical field.

Background

The straightness detection mainly comprises the detection of the straightness errors of the prime lines of the cylinder and the cone, and the straightness errors of the guide surfaces of a machine tool and other machines and the linear guide surface of a workpiece. The straightness error affects the performance and service life of the long cold drawn pipe, so it is necessary to detect the straightness of the long cold drawn pipe and strictly control the straightness within a reasonable error range. The cold-drawn steel tube is a precision cold-drawn seamless steel tube with high dimensional precision and good surface finish for mechanical structures and hydraulic equipment. In actual production and processing, in order to reduce the number of waste products, improve the material utilization rate, improve the product precision and guarantee the use requirements, the straightness of the cold-drawn steel pipes needs to be detected during and after processing, and the cold-drawn steel pipes need to be corrected in time so as to reduce the loss. At present, the commonly used straightness measuring methods include a straight ruler method, an alignment method, a gravity method, a straight line method and the like.

The traditional method for measuring the straightness of the long cold drawn pipe mainly adopts the method that the cold drawn pipe is fixed on a straightening machine and the measurement is carried out by adopting methods such as an optical gap method, a meter printing method, a pitch method, a three-coordinate method, a laser collimator method and the like, wherein the optical gap method and the meter printing method have the defects of low measurement efficiency and poor precision; the three-coordinate method has high measurement precision, but has over high cost and lower efficiency, and is not suitable for batch production; the pitch method is mainly used for measuring a single bus; the laser collimator is easily interfered by the outside world, and the use is limited greatly. Meanwhile, the traditional straightness detection method can only detect and measure at a fixed position, is difficult to carry, needs multiple people to operate simultaneously, and greatly influences the product quality detection efficiency.

The existing patent mainly comprises a large shell straightness portable detection device applied by Shanghai boiler plant Limited. This technique suffers from several disadvantages: 1. when the device in the patent is used for detecting the straightness, the laser emitting device is complex to adjust, the height angle of the bracket needs to be adjusted for many times, and the detection efficiency is influenced; 2. the standard steel ruler adopts standard magnet to accurately position, and the standard steel ruler component is in sliding friction when moving on a workpiece to be detected, so that the friction of the standard V-shaped magnet is easily damaged, and the positioning precision is influenced; 3. in the patent, a standard straight steel ruler component is adopted for linearity detection reading, but the device can only measure the linearity error in a single direction, and the linearity error in the direction perpendicular to the graduated scale cannot be measured.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a portable straightness accuracy detection device detects the processingquality of long cold drawn pipe with the device based on straightness accuracy detection technique.

The utility model discloses a realize through following technical scheme: a portable straightness accuracy detection device which characterized in that: including laser emission device and scale plate subassembly, laser emission device and scale plate subassembly are fixed simultaneously on being surveyed the work piece, laser emission device includes the laser emission head, elevating gear and laser base, scale plate subassembly includes scale plate and unable adjustment base, laser emission device's laser base is fixed on being surveyed the smooth terminal surface of work piece, scale plate subassembly has the one side of scale to face laser emission device, fix scale plate subassembly on being surveyed the work piece through unable adjustment base.

The lifting device comprises a threaded lifting shaft, a height-adjusting nut and a threaded lifting pipe, the laser emitting head is fixed on the threaded lifting shaft with the boss, the threaded lifting shaft and the threaded lifting pipe form the threaded lifting device, and the height of the threaded lifting device is adjusted through the height-adjusting nut.

The laser base comprises a magnetic suction base and a magnetic suction adjusting knob, the lifting device is fixed on the magnetic suction base, and the magnetic suction base is fixed on the end face of the workpiece to be detected through the magnetic suction adjusting knob.

The fixed base comprises a fixed bolt nut, a self-locking knob, a V-shaped base and rollers, the scale plate is installed on the V-shaped base through the fixed bolt nut, a plurality of rollers are installed on a V-shaped surface of the V-shaped base, and the rollers can achieve self-locking fixation of any straightness measuring point on a measured workpiece through the self-locking knob.

The scale plate comprises uniform scales in the X direction and the Y direction.

The utility model has the advantages that: the laser emission device of the device is simple to adjust and convenient to operate, the scale plate component can measure the linearity change of two directions, and the scale plate component is in contact with a workpiece to be measured by adopting the roller, so that the friction resistance is small during movement, and the detection efficiency and the reliability of the linearity are greatly improved.

Drawings

The invention will be further explained below with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural diagram of the laser emitting device of the present invention;

fig. 3 is a schematic structural diagram of the scale plate assembly of the present invention;

fig. 4 is a side view of the inventive scale assembly.

In the figure: 1. a laser emitting device; 2. a dial plate assembly; 3. a workpiece to be tested; 4. a laser emitting head; 5. a threaded lifting shaft; 6. heightening the nut; 7. a threaded riser; 8. a magnetic base; 9. the adjusting knob is magnetically attracted; 10. a scale plate; 11. fixing the bolt and the nut; 12. a self-locking knob; 13. a V-shaped base; 14. and a roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A portable straightness detection apparatus as shown in fig. 1 to 4, characterized in that: including laser emitter 1 and scale plate subassembly 2, laser emitter 1 and scale plate subassembly 2 are fixed simultaneously on being surveyed work piece 3, laser emitter 1 includes laser emission head 4, elevating gear and laser base, scale plate subassembly 2 includes scale plate 10 and unable adjustment base, laser emitter 1's laser base is fixed on being surveyed smooth terminal surface of work piece 3, scale plate subassembly 2 has the one side of scale towards laser emitter 1, fix scale plate subassembly 2 on being surveyed work piece 3 through unable adjustment base.

The lifting device comprises a threaded lifting shaft 5, a height-adjusting nut 6 and a threaded lifting pipe 7, the laser emitting head 4 is fixed on the threaded lifting shaft 5 with the boss, the threaded lifting shaft 5 and the threaded lifting pipe 7 form the threaded lifting device, and the height of the threaded lifting device is adjusted through the height-adjusting nut 6.

The laser base include magnetism inhale base 8 and magnetism inhale adjust knob 9, elevating gear fixes on base 8 is inhaled to magnetism, base 8 is inhaled to magnetism and is fixed at the terminal surface of being surveyed work piece 3 through magnetism inhale adjust knob 9.

The fixed base comprises a fixed bolt nut 11, a self-locking knob 12, a V-shaped base 13 and rollers 14, the scale plate 10 is installed on the V-shaped base 13 through the fixed bolt nut 11, the rollers 14 are installed on a V-shaped surface of the V-shaped base 13, and the rollers 14 can realize self-locking and fixing of any straightness measuring point on the workpiece 3 to be measured through the self-locking knob 12.

The scale plate 10 comprises uniform scales in the X direction and the Y direction.

The utility model discloses a location installation includes:

the installation of the laser emitting device 1 is realized by tightly leaning the magnetic suction base 8 of the laser emitting device 1 on the smooth end surface of the workpiece 3 to be tested, adjusting the thread lifting device to vertically move upwards and opening the magnetic suction knob 9, thus realizing the reliable installation of the laser emitting device 1.

The positioning installation of the scale plate component 2 is characterized in that the graduated face of the scale plate component 2 faces the laser emitting device 1, the positioning of the scale plate component on the workpiece 3 to be measured is realized through the V-shaped base 13, the free movement of the scale plate component 2 on the workpiece 3 to be measured can be realized through the adjusting roller 14, and the reliable positioning of the scale plate component 2 on the workpiece 3 to be measured is realized through screwing the self-locking knob 12.

The implementation mode is as follows:

1, a first step: installing a laser emitting device;

2, a second step: installing a scale plate assembly;

3, a third step: the reference of the straightness detection is determined,

firstly, moving the scale plate component 2 to one side only depending on the laser emitting device 1, opening a laser emitting switch, observing the position of a light spot on the scale plate 10, enabling the light spot to be positioned on a vertical scale mark of the scale plate 10 by adjusting the installation position of the laser emitting device 1, enabling the light spot to be positioned at the scale center of the scale plate 10 by adjusting the thread lifting device through the heightening nut 7, and establishing a reference for linearity detection;

4, fourth step: and (3) detecting the straightness accuracy,

the self-locking knob 13 is opened, the scale plate assembly 2 is slowly moved to the side far away from the laser emitting device 1, the self-locking knob 13 is locked at the position of the measured point, the position change of a light spot of the laser emitting device on the scale plate 10 relative to the center of the scale is observed and recorded, the light spot is concave above the center of the scale, convex below the center of the scale, left convex on the right side of the center of the scale and right convex on the left side of the center of the scale, and the change of the straightness of the measured workpiece can be accurately judged by integrating two directions. The scale plate component 2 can move on the measured workpiece 3 globally, enough measuring points are selected, the positions of light spots on the scale plate 10 at the measuring points are recorded one by one, a smooth straightness curve can be drawn, and the processing quality of the measured workpiece 3 can be accurately and visually detected.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (5)

1. A portable straightness accuracy detection device which characterized in that: including laser emission device (1) and scale plate subassembly (2), laser emission device (1) and scale plate subassembly (2) are fixed simultaneously on being surveyed work piece (3), laser emission device (1) is including laser emission head (4), elevating gear and laser base, scale plate subassembly (2) are including scale plate (10) and unable adjustment base, the laser base of laser emission device (1) is fixed on the smooth terminal surface of being surveyed work piece (3), scale plate subassembly (2) have scale one side towards laser emission device (1), fix scale plate subassembly (2) on being surveyed work piece (3) through unable adjustment base.

2. A portable straightness detection device according to claim 1, wherein: elevating gear include screw thread lift axle (5), heighten nut (6) and screw thread fall way (7), laser emission head (4) fix on screw thread lift axle (5) of taking the boss, screw thread elevating gear is constituteed to screw thread lift axle (5) and screw thread fall way (7), through heightening nut (6) altitude mixture control.

3. A portable straightness detection device according to claim 1, wherein: the laser base comprises a magnetic suction base (8) and a magnetic suction adjusting knob (9), the lifting device is fixed on the magnetic suction base (8), and the magnetic suction base (8) is fixed on the end face of the workpiece to be detected (3) through the magnetic suction adjusting knob (9).

4. A portable straightness detection apparatus according to claim 1, wherein: the fixed base comprises a fixed bolt nut (11), a self-locking knob (12), a V-shaped base (13) and rollers (14), a scale plate (10) is installed on the V-shaped base (13) through the fixed bolt nut (11), the V-shaped surface of the V-shaped base (13) is provided with the rollers (14), and the rollers (14) can realize self-locking fixation of any straightness measuring point on a workpiece (3) to be measured through the self-locking knob (12).

5. A portable straightness detection device according to claim 1, wherein: the scale plate (10) comprises uniform scales in the X direction and the Y direction.

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