CN215494128U

CN215494128U - Two-axis laser measuring device

Info

Publication number: CN215494128U
Application number: CN202121422858.9U
Authority: CN
Inventors: 何万涛; 何万江; 李亮
Original assignee: Nanjing Zhibo Measurement And Control Technology Co ltd
Current assignee: Nanjing Zhibo Measurement And Control Technology Co ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-01-11
Anticipated expiration: 2031-06-24

Abstract

The utility model discloses a two-axis laser measuring device, which relates to the field of measurement and comprises a rotary chuck, a workbench, a linear motor module, a rotary cylinder, an adjusting device and a detection assembly, wherein laser distance meters are arranged on a fixed plate in tandem, so that the height from the bottom of a blind hole to the laser distance meter and the height from the upper surface of the blind hole to the laser distance meter can be measured simultaneously, and a background detection computer is used for making a difference between the two heights to obtain the depth of the blind hole; when the rotating plate is used for feeding and fixing parts, the rotating plate can rotate to one side, so that the parts can be conveniently fed, and the detection assembly can be adjusted in position through the adjusting device and can adapt to blind hole measurement work at different positions; the detection assembly is matched with the rotary chuck for use, so that the part can be slowly rotated while a plurality of blind holes in the part to be detected are detected. Compared with manual blind hole detection, the detection result is more accurate, the detection consumes less time, the detection efficiency is high, and automatic detection is easy to realize.

Description

Two-axis laser measuring device

Technical Field

The utility model relates to the field of measurement, in particular to a two-axis laser measuring device.

Background

In industrial production, blind holes need to be drilled in some shaft parts or round parts at equal intervals, and inspection personnel need to carry out qualified detection on the depth of the blind holes after the blind holes are drilled out, so that the requirements of related functions are met.

The existing blind hole depth measurement method generally includes two modes, one mode is to extend a cylindrical gauge into a blind hole and then measure the length of the gauge exposed outside, so that the depth of the blind hole is indirectly obtained by subtracting the exposed length from the total length, and the other mode is to insert the tail part of a vernier caliper into the blind hole for reading measurement. The first detection mode is more tedious and inconvenient to measure, and the second detection mode sometimes leads to measurement errors because the tail of the caliper is obliquely inserted into the blind hole instead of being vertically inserted into the blind hole. And two kinds of detection methods are manual detection, are not suitable for large batch blind hole detection work.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a two-axis laser measuring device to solve the above-mentioned problems occurring in the prior art.

Two-axis laser measuring device, including rotating chuck and workstation, rotating chuck locates on the workstation for press from both sides tight part that awaits measuring and realize rotatoryly, still includes linear electric motor module, revolving cylinder, adjusting device and determine module, linear electric motor module fixed connection is on the workstation, revolving cylinder is connected with the slip table of linear electric motor module, revolving cylinder's output shaft fixedly connected with rotor plate, adjusting device is used for driving determine module translation on the rotor plate, determine module is used for measuring the difference in height of blind hole bottom to the blind hole upper surface.

Preferably, the adjusting device comprises an adjusting motor, a screw rod and a sliding block, an output shaft of the adjusting motor is fixedly connected with the screw rod, the screw rod is rotatably connected with the rotating plate through a rotating seat, the sliding block is connected with the screw rod through a screw rod nut, and the driving detection assembly is fixedly connected with the sliding block.

Preferably, the detection assembly comprises a fixed plate and two laser range finders, the two laser range finders are respectively fixedly connected to the front side and the rear side of the fixed plate, and the fixed plate is fixedly connected to the bottom of the sliding block.

Preferably, the rotating plate is provided with a strip-shaped opening for the movement of the detection assembly.

Preferably, the lateral wall fixedly connected with stopper of slider, fixedly connected with slide bar on the fixed plate, stopper and slide bar sliding connection.

The utility model has the advantages that:

the laser range finders are arranged on the fixing plate in tandem, so that the height from the bottom of the blind hole to the laser range finder and the height from the upper surface of the blind hole to the laser range finder can be measured simultaneously, and the two heights are differed by a background detection computer to obtain the depth of the blind hole;

when the rotary plate is used for loading and fixing parts, the rotary plate can be rotated to one side, so that the parts can be conveniently loaded, the detection assembly can be adjusted in position through the adjusting device, the blind hole measuring work of different positions can be adapted, and the height of the rotary cylinder can be adjusted by the linear motor module, so that the parts with different heights can be adapted;

the part to be detected is fixed on the rotary chuck, and a plurality of blind holes in the part to be detected can be detected while the part slowly rotates. Compared with manual blind hole detection, the detection result is more accurate, the detection consumes less time, the detection efficiency is high, and automatic detection is easy to realize.

Drawings

FIG. 1 is a schematic structural diagram of the present device in an undetected state.

Fig. 2 is a schematic structural diagram of the device in a detection state.

Fig. 3 is a schematic view of the structure at the detection assembly.

In the figure: 1-a rotary chuck, 2-a workbench, 3-a linear motor module and 4-a rotary cylinder;

5-an adjusting device, 51-an adjusting motor, 52-a screw rod, 53-a sliding block, 54-a limiting block and 55-a sliding rod;

6-detection component, 61-fixing plate, 62-laser range finder, 7-rotating plate, 71-strip-shaped opening.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Two axis laser measuring device, including spin chuck 1 and workstation 2, spin chuck 1 is located on workstation 2 for press from both sides tight part that awaits measuring and realize rotatoryly, still includes linear electric motor module 3, revolving cylinder 4, adjusting device 5 and determine

module

6, 3 fixed connection of linear electric motor module are on workstation 2, revolving cylinder 4 is connected with linear electric motor module 3's slip table, revolving cylinder 4's output shaft fixedly connected with rotor plate 7, adjusting device 5 is used for driving determine module 6 translation on rotor plate 7, determine module 6 is used for measuring the difference in height of blind hole bottom to the blind hole upper surface. The rotary chuck 1 adopts a pneumatic driving chuck to clamp, and the clamping is more convenient.

In this embodiment, the adjusting device 5 includes an adjusting motor 51, a screw 52 and a slider 53, an output shaft of the adjusting motor 51 is fixedly connected to the screw 52, the screw 52 is rotatably connected to the rotating plate 7 through a rotating base, the slider 53 is connected to the screw 52 through a screw nut, and the driving detection assembly 6 is fixedly connected to the slider 53. In this embodiment, the detecting assembly 6 includes a fixing plate 61 and two laser range finders 62, the two laser range finders 62 are respectively and fixedly connected to the front side and the rear side of the fixing plate 61, and the fixing plate 61 is fixedly connected to the bottom of the sliding block 53. The laser range finders 62 are arranged on the fixing plate 61 in tandem, so that the height from the bottoms of the blind holes to the laser range finders 62 and the height from the upper surfaces of the blind holes to the laser range finders 62 can be measured simultaneously, and the two heights are differed by a background detection computer to obtain the depth of the blind holes;

in this embodiment, the rotating plate 7 is provided with a strip-shaped opening 71 for the detection assembly 6 to move.

In this embodiment, a limit block 54 is fixedly connected to a side wall of the sliding block 53, a sliding rod 55 is fixedly connected to the fixing plate 61, and the limit block 54 is slidably connected to the sliding rod 55. The sliding rod 55 is additionally arranged to limit the sliding block 53 and prevent the sliding block 53 from rotating,

the working process and the principle thereof are as follows:

when the depth of the blind hole needs to be measured to meet the standard, as shown in fig. 1, the rotating plate 7 is initially in a transverse position, the rotating plate 7 is located on one side of the rotating chuck 1 at the position, the feeding of the part is not affected, then the round part to be measured is placed into the rotating chuck 1, the rotating chuck 1 is clamped by a pneumatic driving chuck, after the part is clamped and fixed, the rotating cylinder 4 is started to drive the rotating plate 7 to rotate for 90 degrees, as shown in fig. 2, the rotating plate 7 is located right above the rotating chuck 1, and the rotating plate 7 points to the center of the rotating chuck 1.

According to the position of blind hole, through the rotatory slider 53 that drives of motor drive lead screw 52, add slide bar 55 and be for spacing for slider 53, prevent that slider 53 from rotating, adjust the position of determine module 6 for laser range finder 62 in fixed plate 61 rear is located the blind hole, and the distancer in the place ahead is located the inboard of blind hole, the upper surface of blind hole promptly.

When the part starts to rotate under the drive of the rotating chuck 1, if the distance meters are not positioned at the blind holes, the distances from the two distance meters to the height of the part are the same, the background detection computer makes the difference between the two numerical values 0, judges that the part is not positioned at the blind hole position, and does not compare with the standard range of the blind hole depth, once the part rotates to the position where the blind hole is positioned at the rear laser distance meter 62, the rear laser distance meter 62 detects the height value from the bottom of the blind hole to the laser distance meter 62, the height value from the upper surface of the blind hole to the laser range finder 62 in the front is measured, the height values of the front laser range finder 62 and the rear laser range finder 62 are differed by the background computer to obtain a numerical value, the numerical value is the depth of the blind hole, if the depth of the blind hole meets the standard, the part continues to rotate, the depth of the next blind hole is measured, otherwise, the part stops rotating, and the depth of the blind hole of the part is judged to be unqualified.

And (4) rotating the part for a complete circle to measure whether all the blind hole depths meet the standard or not. After the measurement is finished, the rotating chuck 1 loosens the part, takes down the measured part and replaces the measured part with a new part. In the later stage, in order to realize automation, a manipulator can be adopted to carry out feeding and discharging, so that the detection time can be greatly shortened.

The linear motor module 3 is used for adjusting the height of the rotary cylinder 4 so as to adapt to the measurement work of parts with different heights and improve the adaptability of the device.

Based on the above: the laser range finders 62 are arranged on the fixing plate 61 in tandem, so that the height from the bottoms of the blind holes to the laser range finders 62 and the height from the upper surfaces of the blind holes to the laser range finders 62 can be measured simultaneously, and the two heights are differed by a background detection computer to obtain the depth of the blind holes;

when the rotating plate 7 is used for feeding and fixing parts, the rotating plate can rotate to one side, so that the parts can be conveniently fed, and the position of the detection assembly 6 can be adjusted through the adjusting device 5, so that the blind hole measuring device can adapt to blind hole measuring work at different positions;

the part to be detected is fixed on the rotating chuck 1, and a plurality of blind holes in the part to be detected can be detected while the part slowly rotates. Compared with manual blind hole detection, the detection result is more accurate, the detection consumes less time, the detection efficiency is high, and automatic detection is easy to realize.

It will be appreciated by those skilled in the art that the utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the utility model are intended to be embraced therein.

Claims

1. Two axis laser measuring device, including swivel chuck (1) and workstation (2), swivel chuck (1) is located on workstation (2) for press from both sides tight part that awaits measuring and realize rotatoryly, its characterized in that still includes linear electric motor module (3), revolving cylinder (4), adjusting device (5) and determine module (6), linear electric motor module (3) fixed connection is on workstation (2), revolving cylinder (4) is connected with the slip table of linear electric motor module (3), the output shaft fixedly connected with rotor plate (7) of revolving cylinder (4), adjusting device (5) are used for driving determine module (6) and translate on rotor plate (7), determine module (6) are used for measuring the difference in height of blind hole bottom to the blind hole upper surface.

2. The two-axis laser measuring device according to claim 1, wherein the adjusting device (5) comprises an adjusting motor (51), a lead screw (52) and a slider (53), an output shaft of the adjusting motor (51) is fixedly connected with the lead screw (52), the lead screw (52) is rotatably connected with the rotating plate (7) through a rotating seat, the slider (53) is connected with the lead screw (52) through a lead screw nut, and the driving detection assembly (6) is fixedly connected with the slider (53).

3. Two-axis laser measuring device according to claim 2, characterized in that the detecting assembly (6) comprises a fixed plate (61) and two laser distance measuring instruments (62), the two laser distance measuring instruments (62) are respectively fixedly connected to the front side and the rear side of the fixed plate (61), and the fixed plate (61) is fixedly connected to the bottom of the sliding block (53).

4. Two-axis laser measuring device according to claim 1, characterized in that the rotating plate (7) is provided with a strip-shaped opening (71) for the movement of the detecting assembly (6).

5. Two-axis laser measuring device according to claim 3, characterized in that a stop block (54) is fixedly connected to a side wall of the slide block (53), a slide rod (55) is fixedly connected to the fixed plate (61), and the stop block (54) is slidably connected to the slide rod (55).