CN214842883U - Section bar length measuring device - Google Patents

Abstract

The utility model relates to a section bar length measuring device includes: the device comprises a portal frame, a first measuring device arranged at one end of the portal frame and a second measuring device arranged at the other end of the portal frame. The portal frame comprises a cross beam arranged in parallel with the section bar to be measured, and a first upright post and a second upright post which are arranged at two ends of the cross beam in a standing mode. The first measuring device is positioned at a first initial position formed on the cross beam and is slidably arranged on the cross beam, and the first measuring device is provided with a first trigger piece which can abut against the first end of the profile to be measured when moving from the first upright column to the second upright column, and a first distance measuring part which can acquire the displacement of the first trigger piece; the second measuring device comprises a telescopic cylinder fixed on the second upright post, the telescopic cylinder is provided with a piston rod capable of moving parallel to the section bar to be measured, the end part of the piston rod is provided with a second trigger piece capable of abutting against the second end of the section bar to be measured, and a second distance measuring part capable of acquiring the displacement of the second trigger piece.

Description

Section bar length measuring device

Technical Field

The utility model relates to a section bar measures technical field, specifically relates to a section bar length measuring device.

Background

The section bar is used as a common metal material and is widely applied to the fields of various departments such as metallurgy, machinery, chemical industry, building, traffic, shipbuilding and the like. Before the section bars are processed and used, the length of the section bars is usually measured, and the measurement work is usually carried out manually according to the current state of domestic production workshops. Obviously, the manual length measurement has high labor intensity and low efficiency, and is difficult to adapt to the requirements of modern production. Moreover, manual measurement often causes erroneous measurement due to the existence of human factors and the occurrence of erroneous judgment and erroneous reading. The accuracy is poor, and the user objection is easy to appear or the economic loss is directly caused.

Disclosure of Invention

It is an object of the present disclosure to provide a profile length measuring device which is capable of at least partially solving the problems existing in the prior art.

In order to achieve the above object, the present disclosure provides a section bar length measuring device, including:

the portal frame comprises a cross beam, a first stand column and a second stand column, wherein the first stand column and the second stand column are vertical to two ends of the cross beam, and the cross beam is used for being arranged in parallel with the section bar to be detected;

the first measuring device is positioned at a first initial position formed on the cross beam and is slidably arranged on the cross beam, and the first measuring device is provided with a first trigger piece which can abut against the first end of the profile to be measured when moving from the first upright column to the second upright column, and a first distance measuring part which can acquire the displacement of the first trigger piece;

the second measuring device is located and forms the second initial position of second stand, the second measuring device is including fixing telescopic cylinder on the second stand, the telescopic cylinder has can be on a parallel with the piston rod that the section bar that awaits measuring removed, the tip of piston rod is provided with can support the top and is in the second trigger piece of the second end of the section bar that awaits measuring, and can acquire the second range finding portion of the displacement of second trigger piece.

Optionally, one end of the cross beam, which is close to the first upright, is provided with a first travel switch, which is used for limiting the first measuring device when the first measuring device moves towards the direction close to the first upright.

Optionally, the crossbeam is provided with guide rail and rack along the horizontal direction, sliding connection has the slide on the guide rail, first measuring device includes:

the driving motor is arranged on the sliding plate;

a speed reducer connected with the output end of the driving motor, wherein the speed reducer is provided with a gear engaged with the rack,

wherein, the first distance measuring part is an encoder integrated in the driving motor, and the first trigger piece is installed on the sliding plate.

Optionally, the first measuring device further includes a second travel switch, so that after the first measuring device moves towards the second upright column to make the first trigger contact with the end face of one end of the profile to be measured, the first measuring device is controlled to stop sliding.

Optionally, the first measuring device comprises a first bracket fixed on the sliding plate,

the first trigger part is connected to the first bracket in a manner of rotating back and forth through a lever component, the lever component comprises a pivot shaft extending vertically and a swing rod extending horizontally and rotating around the pivot shaft, the first trigger part is arranged at one end of the swing rod, the other end of the swing rod is provided with a contact plate,

the second travel switch interval sets up being close of contact plate one side of second stand, being close of contact plate one side of first stand is connected with the extension spring, the extension spring orientation first stand extends and is connected to on the first support.

Optionally, the first trigger is configured as a vertically extending rod-like structure.

Optionally, the second measuring device includes a second support fixed to the second upright, the cylinder body of the telescopic cylinder is fixed to the second support, and the second measuring device further includes a third stroke switch, so that after the second trigger touches the end face of the to-be-measured section bar, the piston rod is controlled to stop stretching.

Optionally, a third bracket is connected to an end of the piston rod, the second trigger is a plate-shaped structure erected at a front end of the third bracket, and the third stroke switch is fixed to the third bracket adjacent to the second trigger.

Optionally, the second distance measuring unit is a rope encoder fixed to a cylinder of the telescopic cylinder.

Optionally, dust covers are disposed on the first measuring device and the second measuring device, and the first measuring device and the second measuring device are respectively partially located inside a cavity surrounded by the dust covers.

Through the technical scheme, the cross beam of the portal frame is parallel to the section bar to be measured, the first measuring device is slidably arranged on the first upright post, the second measuring device is arranged on the second upright post, and the second measuring device is provided with the telescopic cylinder capable of moving along the extension direction of the cross beam. The first measuring device and the second measuring device are respectively positioned at initial positions, slide towards each other through the first measuring device and the second measuring device, and measure the distance from the first measuring device to the profile to be measured so as to measure the length of the profile. The method avoids the situations of erroneous judgment and erroneous reading of manual detection, so as to cause measurement errors, improve the accuracy and prevent the occurrence of user disagreement or direct economic loss.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic structural diagram of a profile length measuring device provided in an exemplary embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a gantry in a section bar length measuring device provided in an exemplary embodiment of the present disclosure;

fig. 3 is a partially enlarged view of a portion a in fig. 2;

fig. 4 is a schematic structural diagram of a first measuring device in a profile length measuring device provided in an exemplary embodiment of the present disclosure;

fig. 5 is a schematic structural view of another angle of the first measuring device in the profile length measuring device provided by the exemplary embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a second measuring device in the profile length measuring device provided in the exemplary embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of another angle of the second measuring device in the profile length measuring device provided by the exemplary embodiment of the present disclosure.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise stated, the terms "left", "right", "up" and "down" used in the present disclosure refer to the definition of the profile length measuring device in normal use, and specifically refer to the directions of the drawing shown in fig. 1, and the terms "inside" and "outside" refer to the outlines of the corresponding components themselves. Terms such as "first," "second," and the like, used in this disclosure are intended to distinguish one element from another, without order or importance. Further, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements.

Referring to fig. 1 and 2 and 3, the present disclosure provides a profile length measuring apparatus, including: the device comprises a portal frame 1, a first measuring device 2 arranged at one end of the portal frame 1, and a second measuring device 3 arranged at the other end of the portal frame 1. The portal frame 1 comprises a cross beam 11 arranged in parallel with the section bar to be measured, and a first upright post 12 and a second upright post 13 which stand at two ends of the cross beam 11. The cross beam 11 is supported by a first upright 12 and a second upright 13 so that the height of the cross beam 11 matches the height of the profile to be measured.

Referring to fig. 1, 4 and 5, the first measuring device 2 is slidably arranged on the cross beam 11, the first measuring device 2 has a first trigger 21 capable of abutting against the first end of the profile to be measured when moving from the first upright 12 towards the second upright 13, and a first distance measuring portion capable of acquiring the displacement of the first trigger 21. The first upright 12 may be an upright on the left side of the cross beam 11, the initial position of the first measuring device 2 may be located on the left side of the cross beam 11, when measuring the profile to be measured, the first measuring device 2 moves rightward along the extending direction of the cross beam 11 until the first triggering member 21 mounted on the first measuring device 2 abuts against one end of the profile to be measured, and the moving distance L2 of the first triggering member 21 is measured by the first distance measuring part. By the automatic measurement of the first measuring device 2, errors caused by manual measurement can be avoided, and labor force is saved.

Referring to fig. 1, 6 and 7, the second measuring device 3 includes a telescopic cylinder 31 fixed on the second upright 13, the telescopic cylinder 31 has a piston rod 311 capable of moving parallel to the profile to be measured, the end of the piston rod 311 is provided with a second trigger 32 capable of abutting against the second end of the profile to be measured, and a second distance measuring portion 33 capable of acquiring the displacement of the second trigger 32. Based on that the first upright post 12 is an upright post installed on the left side of the cross beam 11, the second upright post 13 may be an upright post installed on the right side of the cross beam 11, the second measuring device 3 is installed on the second upright post 13 through the telescopic cylinder 31, and is movably installed in the telescopic cylinder 31 through one end of the piston rod 311, when the piston rod 311 extends out relative to the telescopic cylinder 31, the second measuring device 3 can move leftward along the extending direction of the cross beam 11, and drive the second triggering member 32 to move leftward until the second triggering member 32 abuts against the other end (the end opposite to the first triggering member 21) of the profile to be tested, and the moving distance L3 of the second triggering member 32 is measured through the second distance measuring portion 33.

In the embodiment provided by the present disclosure, before measuring the profile to be measured, the first measuring device 2 is located at a first initial position preset on the cross beam 11, and the second measuring device 3 is located at a second initial position provided on the second upright 13, the distance between the first initial position and the second initial position being L1. From the above, the length L of the profile to be measured is: L-L1-L2-L3. The first measuring device 2 and the second measuring device 3 are used for automatically measuring the section to be measured, so that the risk of errors generated when the section to be measured is manually measured is reduced.

Through the technical scheme, the cross beam 11 of the portal frame 1 is arranged parallel to the section bar to be measured, the first measuring device 2 is arranged on the first upright post 12 in a sliding manner, the second measuring device 3 is arranged on the second upright post 13, and the second measuring device 3 is provided with the telescopic cylinder 31 moving along the extending direction of the cross beam 11. The first measuring device 2 and the second measuring device 3 are located at initial positions respectively, slide towards each other through the first measuring device 2 and the second measuring device 3, and measure the distance from the first measuring device 2 to the section bar to be measured, so that the length of the section bar to be measured is calculated. The method avoids the situations of erroneous judgment and erroneous reading of manual detection, so as to cause measurement errors, improve the accuracy and prevent the occurrence of user disagreement or direct economic loss.

Referring to fig. 1, one end of the cross beam 11 close to the first upright 12 is provided with a first travel switch 14 for limiting the first measuring device 2 when the first measuring device 2 moves towards the direction close to the first upright 12. In the embodiment that this disclosure provided, after the section bar measurement finishes, first measuring device 2 can move the one end of removing crossbeam 11 to the left to make things convenient for next measurement, through set up first travel switch 14 at the left end of first stand 12, when can effectively avoiding first measuring device 2 to slide left, from the risk that drops on crossbeam 11, guaranteed first measuring device 2's security, make this section bar length measuring device have better stability.

Referring to fig. 2 to 5, the cross beam 11 is provided with a guide rail 15 and a rack 16 along a horizontal direction, a slide plate 25 is slidably connected to the guide rail 15, and the first measuring device 2 includes: a driving motor 22 and a speed reducer 23 mounted on the slide plate 25. The speed reducer 23 can be connected to the output end of the driving motor 22, and a gear 24 for meshing with the rack 16 is arranged on the speed reducer 23, wherein the first distance measuring part is an encoder integrated in the driving motor 22, and the first trigger 21 is installed on the sliding plate 25. The driving motor 22 drives the first measuring device 2 to slide along the guide rail 15, so that the moving speed of the first measuring device 2 can be controlled, and the first measuring device 2 can be conveniently adjusted under different working conditions. According to some examples provided by the present disclosure, the driving motor 22 may be a servo motor, the number of rotation turns of the motor is measured by a self-contained encoder in the servo motor, the moving distance of the first measuring device 2 is measured through conversion, the first measuring device 2 can move along the extending direction of the rack 16 through the engagement of the gear 24 and the rack 16, so as to ensure the stability of the first measuring device 2 sliding on the guide rail 15, and the rack 16 and the guide rail 15 are arranged up and down relatively, so as to further ensure the stability of the first measuring device 2 when moving.

Further, the first measuring device 2 further comprises a second travel switch 29, so that after the first measuring device 2 moves towards the second upright column 13, so that the first trigger 21 touches the end face of one end of the profile to be measured, the second travel switch 29 can stop the sliding of the first measuring device 2. The first measuring device 2 is prevented from continuously sliding when touching one end of the section bar to be measured, so that the first measuring device 2 is prevented from colliding with the section bar to be measured, the damage to parts of the first measuring device 2 and the damage to the section bar to be measured are effectively avoided, and the reliability of the section bar length measuring device is ensured.

Further, referring to fig. 1 to 5, the first measuring device 2 includes a first bracket 251 fixed on the sliding plate 25, the first trigger 21 is connected to the first bracket 251 through a lever assembly 26 in a manner of being rotatable back and forth, the lever assembly 26 includes a pivot shaft 261 extending vertically and a swing lever 262 extending horizontally and rotating around the pivot shaft 261, the first trigger 21 is disposed at one end of the swing lever 262, a contact plate 27 is disposed at the other end of the swing lever 262, the second stroke switches 29 are disposed at intervals at one side of the contact plate 27 close to the second upright 13, a tension spring 28 is connected to one side of the contact plate 27 close to the first upright 12, and the tension spring 28 extends toward the first upright 12 and is connected to the first bracket 251.

Referring to fig. 1 to 3 and 5, a cantilever 252 may be disposed on the first bracket 251, a horizontal beam is disposed on the cross beam 11 parallel to the guide rail 15 and the rack 16, the cantilever 252 is hung on the horizontal beam, and the cantilever 252 can slide along the horizontal beam when the first measuring device 2 slides, so as to prevent the first measuring device 2 from deviating from the guide rail 15 when sliding, and further ensure the stability of the first measuring device 2 when moving along the cross beam 11. The guide rail 15 can be provided with a plurality of mounting blocks 17, the mounting blocks 17 can be connected with the sliding plate 25, so that the sliding plate 25 is connected with the guide rail 15, the first measuring device 2 can be slidably mounted on the guide rail 15, and the plurality of mounting blocks 17 are uniformly arranged on the guide rail 15 at intervals, so that the connection strength between the guide rail 15 and the sliding plate 25 is improved, and the stability of the first measuring device 2 in moving on the cross beam 11 is ensured.

Referring to fig. 1 and 5, one end of the oscillating bar 262 is connected to the first triggering member 21, and when the first triggering member 21 contacts one end of the profile, the first triggering member 21 can move one end of the oscillating bar 262, so that the oscillating bar 262 can rotate around the pivot shaft 261, so that the other end of the first triggering member 21 moves towards the contact plate 27 and contacts the contact plate 27, and the second travel switch 29 is triggered by the contact plate 27 to stop the movement of the first measuring device 2. A tension spring 28 is provided between the contact plate 27 and the first bracket 251, and enables both ends of the tension spring 28 to extend toward the first upright 12 and the second upright 13, respectively, and has a direction of pulling the contact plate 27 toward the first upright 12, so as to maintain stability of the contact plate 27 when the swing lever 262 does not touch the contact plate.

Referring to fig. 5, the first trigger 21 may be configured as a rod-shaped structure extending vertically. The rod-shaped structure of vertical extension can laminate mutually with the side of the section bar that awaits measuring, improves the area of contact of first trigger 21 and the section bar that awaits measuring, guarantees measuring accuracy. In addition, the vertically extending structure can adapt to the measurement of the profile to be measured at different height positions.

Referring to fig. 1, 6 and 7, the second measuring device 3 includes a second bracket 34 fixed on the second upright 13, the cylinder body of the telescopic cylinder 31 is fixed on the second bracket 34, and the second measuring device 3 further includes a third stroke switch 35 to control the piston rod 311 to stop extending and retracting after the second trigger 32 touches the end face of the profile. According to some embodiments provided by the present disclosure, the second distance measuring part 33 is a rope encoder fixed on the cylinder body of the telescopic cylinder 31. The second measuring device 3 is mounted on the second upright post 13 through a second bracket 34, and the second measuring device 3 moves leftwards or rightwards through the expansion and contraction of the piston rod 311 relative to the cylinder body, before the profile to be measured is measured, the second measuring device 3 is positioned at the rightmost end of the cross beam 11, the piston rod 311 retracts in the cylinder body, and one end of the piston rod 311 is connected to the second trigger piece 32; when the section bar is measured, one end of the piston rod 311 extends out of the cylinder body to drive the second measuring device 3 to move leftwards, when the second trigger piece 32 contacts the end face of the section bar, the moving distance of the piston rod 311 is measured by the pull-cord encoder, the third travel switch 35 controls one end of the piston rod 311 to stop extending continuously, the second trigger piece 32 is prevented from moving continuously, the situation that extrusion occurs between the second measuring device 3 and the end face of the section bar to be measured is prevented, the parts of the second measuring device 3 and the section bar to be measured are prevented from being damaged, and the reliability and the safety of the section bar length measuring device are guaranteed.

Referring to fig. 1, 6 and 7, a third bracket 312 is connected to an end of the piston rod 311, the second trigger 32 is a plate-shaped structure erected at a front end of the third bracket 312, and the third stroke switch 35 is fixed to the third bracket 312 adjacent to the second trigger 32. The second trigger 32 is configured as a vertical plate-shaped structure, which can increase the contact area between the second trigger 32 and the end surface of the profile to be measured, so as to increase the contact effect between the second trigger 32 and the end surface of the profile to be measured, and make the layout between the components on the second measuring device 3 more compact.

Referring to fig. 1, dust covers 4 are disposed on the first measuring device 2 and the second measuring device 3, and the first measuring device 2 and the second measuring device 3 are respectively partially located inside a cavity surrounded by the dust covers 4. The service life of the first measuring device 2 and the second measuring device 3 can be effectively prolonged by arranging the dust cover 4; and the dust cover 4 can not completely shield the first measuring device 2 and the second measuring device 3, so that the dust cover 4 is prevented from hindering measurement or influencing measurement accuracy when the first measuring device 2 and the second measuring device 3 measure the length of the profile to be measured.

The specific measuring process of the section bar length measuring device provided by the disclosure is as follows: when the section bar to be measured is placed in parallel with the cross beam 11 after being in place, the driving motor 22 is meshed with the rack 16 through the gear 24 on the speed reducer 23 to drive the first measuring device 2 to move rightwards, and when the first trigger piece 21 touches the left end face of the section bar to be measured and continues to move rightwards, the second travel switch 29 is triggered, and at the moment, the first measuring device 2 stops moving continuously. During the period, the moving distance of the first measuring device 2 is recorded by an encoder of the servo motor according to the rotating circle number information of the motor, and the moving distance can be obtained through system conversion and is marked as L2; meanwhile, the piston rod 311 of the second measuring device 3 drives the second trigger 32 and the third stroke switch 35 to move leftward, when the second trigger 32 touches the right end face of the profile to be measured, the third stroke switch 35 is triggered, the piston rod 311 stops extending, the extending distance of the piston rod 311 is recorded by the pull-cord encoder, and is recorded as L3, and the length L of the profile to be measured is: L-L1-L2-L3.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. A section bar length measuring device is characterized by comprising:

the device comprises a portal frame (1), wherein the portal frame (1) comprises a cross beam (11), and a first upright (12) and a second upright (13) which are erected at two ends of the cross beam (11), wherein the cross beam (11) is used for being arranged in parallel with a profile to be measured;

the first measuring device (2) is located at a first initial position formed on the cross beam (11) and is slidably arranged on the cross beam (11), the first measuring device (2) is provided with a first trigger piece (21) capable of abutting against the first end of the profile to be measured when moving from the first upright column (12) to the second upright column (13), and a first distance measuring part capable of acquiring the displacement of the first trigger piece (21);

the second measuring device (3) is located and forms the second initial position of second stand (13), second measuring device (3) is including fixing telescopic cylinder (31) on second stand (13), telescopic cylinder (31) have can be on a parallel with piston rod (311) that the section bar that awaits measuring removed, the tip of piston rod (311) is provided with can support and is in the second trigger (32) of the second end of the section bar that awaits measuring to and can acquire second range finding portion (33) of the displacement of second trigger (32).

2. The profile length measuring device according to claim 1, wherein one end of the cross beam (11) close to the first upright (12) is provided with a first travel switch (14) for limiting the first measuring device (2) when the first measuring device (2) moves towards the direction close to the first upright (12).

3. The section bar length measuring device according to claim 1, characterized in that the cross beam (11) is provided with a guide rail (15) and a rack (16) in a horizontal direction, a slide plate (25) is slidably connected to the guide rail (15), and the first measuring device (2) comprises:

a drive motor (22) mounted on the sled (25);

a speed reducer (23) connected to the output end of the driving motor (22), a gear (24) engaged with the rack (16) is arranged on the speed reducer (23),

wherein the first distance measuring part is an encoder integrated in the drive motor (22), and the first trigger (21) is mounted on the slide plate (25).

4. The profile length measuring device according to claim 3, wherein the first measuring device (2) further comprises a second travel switch (29) to control the first measuring device (2) to stop sliding after the first measuring device (2) moves towards the second upright (13) to make the first trigger (21) touch the end face of one end of the profile to be measured.

5. The profile length measuring device according to claim 4, wherein the first measuring device (2) comprises a first bracket (251) fixed to the slide plate (25),

the first trigger member (21) is connected to the first bracket (251) through a lever assembly (26) in a front-back rotatable manner, the lever assembly (26) comprises a pivot shaft (261) extending vertically and a swing rod (262) extending horizontally and rotating around the pivot shaft (261), the first trigger member (21) is arranged at one end of the swing rod (262), and the other end of the swing rod (262) is provided with a contact plate (27),

the second travel switch (29) is arranged on one side, close to the second upright post (13), of the contact plate (27) at intervals, one side, close to the first upright post (12), of the contact plate (27) is connected with a tension spring (28), and the tension spring (28) extends towards the first upright post (12) and is connected to the first support (251).

6. The profile length measuring device according to claim 1, wherein the first trigger (21) is configured as a vertically extending rod-like structure.

7. The profile length measuring device according to claim 1, wherein the second measuring device (3) comprises a second bracket (34) fixed on the second upright (13), the cylinder body of the telescopic cylinder (31) is fixed on the second bracket (34), and the second measuring device (3) further comprises a third stroke switch (35) for controlling the piston rod (311) to stop stretching after the second trigger (32) touches the end face of the profile to be measured.

8. The profile length measuring device according to claim 7, wherein a third bracket (312) is connected to the end of the piston rod (311), the second trigger (32) is a plate-like structure standing at the front end of the third bracket (312), and the third stroke switch (35) is fixed to the third bracket (312) adjacent to the second trigger (32).

9. The profile length measuring device according to claim 7, wherein the second distance measuring portion (33) is a rope encoder fixed to a cylinder body of the telescopic cylinder (31).

10. The profile length measuring device according to claim 1, wherein a dust cover (4) is arranged on each of the first measuring device (2) and the second measuring device (3), and the first measuring device (2) and the second measuring device (3) are respectively partially positioned inside a cavity surrounded by the dust cover (4).

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