A length measuring device capable of adjusting a monitoring position

Abstract

The utility model provides a kind of length measuring device capable of adjusting monitoring position, including workbench, adjusting assembly is provided on workbench, range finder is provided on adjusting assembly, mobile platform is further provided on workbench, placing plate is provided on mobile platform, workpiece to be measured is placed on placing plate, mobile platform can with placing plate and the workpiece to be measured thereon and range finder move towards each other, the utility model can be through adjusting assembly to realize the position and height of range finder and carry out convenient and efficient adjusting operation, cooperate mobile platform to realize the length measurement operation of different height positions of multiple specifications workpieces, measurement is more convenient and efficient, without frequent disassembly and replacement range finder of different height, more time-saving and labor-saving, save cost.

Description

Technical Field

[0001] This utility model relates to the field of length measuring equipment technology, specifically to a length measuring device that can adjust the monitoring position. Background Technology

[0002] In fields such as machining and parts inspection, measuring the length and dimensions of workpieces at different heights is a key aspect of quality control. However, most traditional rangefinders are fixed in place, and their horizontal position cannot be adjusted. The measurement range is limited by the size of the device itself. When measuring the length of workpieces with different length specifications, it is usually necessary to change to different measuring equipment or rangefinders with different measurement positions and distances, which greatly increases the cost of the equipment and makes it less applicable. Utility Model Content

[0003] In view of this, the present invention provides a length measuring device that can adjust the monitoring position. By adjusting the components and cooperating with the moving platform, it can realize the length detection of workpieces of various specifications at different positions and heights, which greatly improves the detection accuracy and measurement range. It solves the problems of traditional rangefinders, which are mostly fixed installations, cannot adjust the horizontal position, and the measurement range is limited by the size of the device itself. When facing the length detection of workpieces of different length specifications, it is usually necessary to change different measuring equipment or rangefinders with different measurement positions and distances, which greatly increases the cost of equipment and has poor applicability.

[0004] To solve the above-mentioned technical problems, this utility model provides a length measuring device capable of adjusting the monitoring position, including a worktable, an adjustment component on the worktable, a rangefinder on the adjustment component, a moving platform on the worktable, a placement plate on the moving platform, and the workpiece to be measured placed on the placement plate. The moving platform can move the placement plate and the workpiece to be measured towards the rangefinder. This utility model can achieve convenient and efficient adjustment of the position and height of the rangefinder through the adjustment component, and can achieve length measurement of workpieces of various specifications at different height positions in conjunction with the moving platform. The measurement is more convenient and efficient, eliminating the need for frequent disassembly and replacement of rangefinders at different heights, saving time, effort, and costs.

[0005] The adjustment component includes a slide groove on the worktable, with a mounting base slidably disposed inside the slide groove. The rangefinder is mounted on the mounting base. This invention allows for convenient and quick adjustment of the distance between the moving platform and the rangefinder by adjusting the position of the mounting base within the slide groove, making it suitable for measuring workpieces with a wider range of lengths.

[0006] An adjustment groove is provided on one side wall of the mounting base, and a mounting block is slidably disposed in the adjustment groove. The rangefinder is mounted on the mounting block. This utility model can conveniently and quickly adjust the height of the laser rangefinder by adjusting the height of the mounting block in the adjustment groove, which facilitates distance measurement of workpieces at different height positions.

[0007] The moving platform is a linear slide, and the placement plate is set on the slider of the linear slide. The linear slide is a linear actuator driven by a motor and lead screw. This invention can rotate the lead screw together by rotating the output shaft of the linear slide motor. In addition, the slide rail of the linear slide limits and guides the slider, and the screw connects the lead screw to the slider. The rotating screw can drive the slider to move the placement plate and the workpiece on the placement plate to a suitable position, and then cooperate with the rangefinder to realize the measurement operation, making the operation more convenient.

[0008] The rangefinder is a laser rangefinder.

[0009] The mounting base includes a horizontal plate and two vertical plates set on the horizontal plate. The horizontal plate has threaded through holes, and locking bolts are threaded into the threaded through holes. This utility model can lock the mounting base after it has been adjusted by tightening the locking bolts, which greatly increases the stability of the measuring instrument installation.

[0010] An adjustment groove is provided on one of the vertical plates, and a threaded blind hole is provided on the back of the mounting block. An adjustment bolt is connected to the threaded blind hole. This utility model can lock and fix the position of the adjusted mounting block and the rangefinder on it by tightening the adjustment bolt, which greatly increases the stability and accuracy of the measurement operation.

[0011] The mounting plate has multiple mounting screw holes, which facilitates the installation and fixing of the fixture for the workpiece to be measured.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. Expanding the measurement range and reducing costs: This utility model can be adapted to workpieces of various lengths and specifications through horizontal adjustment, and to multiple measurement points through height adjustment, without the need to replace equipment, greatly reducing equipment costs and solving the problem of narrow range of traditional devices.

[0014] 2. Improved adjustment accuracy and time saving: This utility model can improve the horizontal and vertical adjustment accuracy of the rangefinder by using locking bolts in conjunction with adjusting bolts. The adjustment time per operation is greatly shortened, and the efficiency is greatly improved compared with the traditional method of raising the instrument, thus solving the problem of inefficient height adjustment.

[0015] 3. Precise movement drive ensures repeatability: This utility model can greatly reduce movement and measurement repeatability through a linear slide table, which greatly improves the accuracy compared to manual movement and solves the problem of poor accuracy in traditional movement.

[0016] 4. Convenient workpiece fixation and reduced deviation: This utility model can be adapted to various fixtures through a unified mounting screw hole, making the workpiece displacement more accurate and greatly reducing measurement deviation, thus solving the deviation problem caused by the difficulty of traditional fixation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the length measuring device of the present invention, which is capable of adjusting the monitoring position.

[0018] Figure 2 This is an isometric view of the length measuring device of the present invention, which is capable of adjusting the monitoring position;

[0019] Figure 3 This is a side view of the length measuring device of the present invention, which is capable of adjusting the monitoring position;

[0020] Figure 4 This is a top view of the length measuring device of this utility model, which is capable of adjusting the monitoring position.

[0021] Explanation of reference numerals in the attached drawings: 100, workbench; 200, adjusting assembly; 210, slide rail; 220, mounting base; 221, horizontal plate; 222, vertical plate; 230, adjusting groove; 240, mounting block; 300, rangefinder; 400, moving platform; 500, placement plate; 600, locking bolt; 700, adjusting bolt. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0023] like Figure 1-4As shown: This embodiment provides a length measuring device capable of adjusting the monitoring position, including a workbench 100. The workbench 100 is made of Q345B low alloy high strength steel, which has the ability to resist deformation and provide stable support. The lower part of the workbench 100 is provided with four support feet, which are made of the same Q345B steel and welded to the four corners of the lower part of the workbench 100. The bottom is provided with rubber anti-slip pads (Shore hardness 75D) to prevent the device from shifting during measurement. An adjustment component 200 is provided on the workbench 100, and a rangefinder 300 is provided on the adjustment component 200. A moving platform 400 is also provided on the workbench 100, and a placement plate 500 is provided on the moving platform 400. The workpiece to be measured is placed on the placement plate 500. The moving platform 400 can move towards the rangefinder 300 along with the placement plate 500 and the workpiece to be measured on it. This utility model can achieve convenient and efficient adjustment of the position and height of the rangefinder 300 through the adjustment component 200. With the moving platform 400, it can achieve length measurement of workpieces of various specifications at different height positions. The measurement is more convenient and efficient, and there is no need to frequently disassemble and replace the rangefinder 300 at different heights, which saves time, effort and costs.

[0024] According to one embodiment of the present invention, such as Figure 1-4 As shown, the adjustment component 200 includes a slide groove 210 formed on the worktable 100. The worktable surface has a T-shaped slide groove 210. The inner wall of the slide groove 210 is plated with hard chrome to enhance wear resistance and reduce sliding friction. A mounting base 220 is slidably arranged inside the slide groove 210, and the rangefinder 300 is mounted on the mounting base 220. This utility model can conveniently and quickly adjust the distance between the moving platform 400 and the rangefinder 300 by adjusting the position of the mounting base 220 in the slide groove 210, which is convenient for measuring workpieces with a larger length range.

[0025] According to another embodiment of the present invention, such as Figure 1 and Figure 2 As shown, an adjustment groove 230 is provided on one side wall of the mounting base 220. A mounting block 240 is slidably disposed within the adjustment groove 230. The rangefinder 300 is mounted on the mounting block 240. The adjustment groove 230 is a rectangular adjustment groove 230 opened on one side of the vertical plate 222, and the groove wall is polished. The mounting block 240 is made of No. 45 steel and is slidably adapted to the adjustment groove 230. It has a threaded blind hole on the back and a built-in locking bolt 600 (same brand). After tightening, it is pressed against the groove wall to fix the height. The mounting block 240 has a mounting hole for the rangefinder 300 on the front, and the laser rangefinder 300 is fixed by bolts. This utility model can conveniently and quickly adjust the height of the laser rangefinder 300 by adjusting the height of the mounting block 240 within the adjustment groove 230, which facilitates distance measurement operations at different height positions of the workpiece.

[0026] According to another embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the moving platform 400 is a linear slide, specifically the KK8610P-400A1-F0 type motor-screw linear slide from HIWIN Technologies Corp., Ltd. (Taiwan). The placement plate 500 is mounted on the slider of the linear slide. The linear slide is a linear actuator driven by a motor-screw. The drive motor is an A6 series servo motor from Panasonic Electric Works (China) Co., Ltd., model MSMF042L1U2M. Precise speed adjustment is achieved through a driver, driving the slider to move smoothly. This invention allows the output shaft of the linear slide motor to rotate, causing the screw to rotate as well. Combined with the limiting and guiding effect of the linear slide rail on the slider and the threaded connection between the screw and the slider, the rotating screw can drive the slider, along with the placement plate 500 and the workpiece on the placement plate 500, to move to a suitable position. This allows for measurement operations in conjunction with the rangefinder 300, making operation more convenient.

[0027] The rangefinder 300 is a laser rangefinder 300. The laser rangefinder 300 uses the IL-100 laser displacement sensor from Keyence (China) Co., Ltd., which has digital signal output function and can be connected to a data acquisition instrument to record data.

[0028] According to another embodiment of the present invention, such as Figure 1 and Figure 3 As shown, the mounting base 220 includes a horizontal plate 221 and two vertical plates 222 disposed on the horizontal plate 221. The horizontal plate 221 has a threaded through hole, and a locking bolt 600 is threadedly connected to the threaded through hole. The horizontal plate 221 and the two vertical plates 222 are all made of No. 45 steel and have undergone heat treatment. The bottom of the horizontal plate 221 is provided with a slider that matches the T-shaped slide groove 210 and can slide horizontally along the slide groove 210. The middle of the horizontal plate 221 has a threaded through hole, and a high-strength locking bolt 600 (Shanghai Shenguang High Strength Bolt Co., Ltd.) is built in it. After tightening, it is pressed against the bottom of the slide groove 210 to achieve positioning. This utility model can lock the mounting base 220 after it has been adjusted in position by tightening the locking bolt 600, which greatly increases the firmness of the measuring instrument installation.

[0029] According to another embodiment of the present invention, such as Figure 1 and Figure 4 As shown, the adjustment groove 230 is opened on one of the vertical plates 222, and the back of the mounting block 240 is provided with a threaded blind hole. The threaded blind hole is connected to the adjusting bolt 700. This utility model can lock and fix the position of the adjusted mounting block 240 and the rangefinder 300 on it by tightening the adjusting bolt 700, which greatly increases the stability and accuracy of the measurement operation.

[0030] The placement plate 500 has multiple mounting screw holes. Made of 201 stainless steel, the placement plate 500 is bolted to the slide block of the sliding table. The mounting screw holes are evenly distributed on the plate surface to accommodate different sizes of fixtures. This facilitates the installation and fixing of the fixture for the workpiece to be measured.

[0031] How to use this utility model:

[0032] First, it should be clarified that the length measuring device involved in this utility model is mainly used for measuring the length of workpieces of various lengths and thicknesses. This utility model takes the length measurement of sheet metal workpieces as an example to explain its working principle and usage method in detail. The working principle is as follows:

[0033] This device achieves length measurement through a collaborative mechanism of "multi-dimensional adjustment, precise movement, stable fixation, and high-precision distance measurement":

[0034] Wide range adaptation principle: The mounting base 220 slides horizontally along the slide groove 210 of the worktable 100, which can adjust the initial distance between the laser rangefinder 300 and the moving platform 400, adapting to the length measurement of workpieces of various length specifications without the need to change equipment; the mounting block 240 slides up and down along the adjustment groove 230 of the vertical plate 222, which can accurately align with the measurement points of different heights of the workpiece, greatly improving the adjustment accuracy.

[0035] High-precision movement principle: The servo motor drives the linear slide screw to rotate. The screw and the slider are threaded together. Combined with the guide limit of the slide rail, the slider drives the workpiece to move smoothly, ensuring that the workpiece position is accurate and controllable during measurement.

[0036] Stable fixing principle: The mounting screw holes of the placement plate 500 provide a unified installation interface for the fixture, which can quickly fix different workpieces. The contact parts between the fixture and the workpiece are equipped with rubber pads (nitrile rubber) to avoid damaging the workpiece and enhance friction.

[0037] Precise distance measurement principle: The laser rangefinder 300 emits a laser beam to the workpiece measurement surface, receives the reflected signal to calculate the distance, and combines the position data of the slide table movement to automatically calculate the workpiece length or the dimensions between different measurement points.

[0038] The usage method is as follows:

[0039] Device debugging and preparation: Check the sliding flexibility of the adjustment component 200, the reliability of the locking bolt 600, and the operating status of the linear slide; connect the laser rangefinder 300 and the data acquisition instrument (such as the Altair USB5935), and calibrate the accuracy of the rangefinder 300; according to the length of the workpiece, slide the mounting base 220 to the appropriate initial position, and tighten the locking bolt 600 of the horizontal plate 221 to fix it.

[0040] Height adjustment of rangefinder 300: According to the height of the workpiece measurement point, loosen the locking bolt 600 of mounting block 240, slide the mounting block 240 to align the laser beam with the measurement point, tighten the bolt to fix it, and confirm the zero position of rangefinder 300 through the data acquisition instrument;

[0041] Workpiece fixing and positioning: Select the appropriate fixture according to the shape of the workpiece, fix the fixture through the mounting screw holes of the placement plate 500, put the workpiece into the fixture and clamp it, and ensure that the measuring surface of the workpiece is perpendicular to the laser beam;

[0042] Length measurement operation: Start the linear slide, set an appropriate moving speed, and the slider will move the workpiece towards the laser rangefinder 300. When the front end of the workpiece reaches the measuring range of the rangefinder 300, record the initial position data; when the rear end of the workpiece leaves the measuring range, record the ending position data. The data acquisition instrument will automatically calculate the length of the workpiece. If different height dimensions need to be measured, simply repeat the steps of adjusting the height of the rangefinder 300.

[0043] Maintenance and storage: After measurement, turn off the power to the equipment, clean the worktable 100 and the slide rail, and apply lubricating oil (grease for the Great Wall L-AN46 total loss system); regularly check the cleanliness of the laser rangefinder 300 lens and calibrate the accuracy once a quarter.

[0044] This invention, through the adjustment component 200 in conjunction with the moving platform 400, enables length detection of workpieces of various specifications at different positions and heights, greatly improving the accuracy of detection and the measurement range. It solves the problems of traditional rangefinders 300, which are mostly fixed installations, cannot be adjusted in horizontal position, and have a measurement range limited by the size of the device itself. When dealing with length detection of workpieces of different length specifications, it is usually necessary to change different measuring equipment or rangefinders 300 with different measurement positions and distances, which greatly increases the cost of equipment and has poor applicability.

[0045] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A length measuring device capable of adjusting the monitoring position, comprising a worktable (100), characterized in that: An adjustment component (200) is provided on the workbench (100), a rangefinder (300) is provided on the adjustment component (200), a moving platform (400) is also provided on the workbench (100), a placement plate (500) is provided on the moving platform (400), the workpiece to be tested is placed on the placement plate (500), and the moving platform (400) can move towards the rangefinder (300) with the placement plate (500) and the workpiece to be tested thereon.

2. The length measuring device capable of adjusting the monitoring position as described in claim 1, characterized in that: The adjustment assembly (200) includes a slide groove (210) formed on the workbench (100), and a mounting base (220) is slidably disposed inside the slide groove (210), and the rangefinder (300) is disposed on the mounting base (220).

3. The length measuring device capable of adjusting the monitoring position as described in claim 2, characterized in that: An adjustment groove (230) is provided on one side wall of the mounting base (220), and a mounting block (240) is slidably disposed in the adjustment groove (230). The rangefinder (300) is disposed on the mounting block (240).

4. The length measuring device capable of adjusting the monitoring position as described in claim 1, characterized in that: The mobile platform (400) is a linear slide, and the placement plate (500) is mounted on the slider of the linear slide.

5. The length measuring device capable of adjusting the monitoring position as described in claim 1, characterized in that: The rangefinder (300) is a laser rangefinder (300).

6. The length measuring device capable of adjusting the monitoring position as described in claim 3, characterized in that: The mounting base (220) includes a horizontal plate (221) and two vertical plates (222) disposed on the horizontal plate (221). The horizontal plate (221) has a threaded through hole, and a locking bolt (600) is threadedly connected to the threaded through hole.

7. The length measuring device capable of adjusting the monitoring position as described in claim 6, characterized in that: The adjustment groove (230) is provided on one of the vertical plates (222), and the back of the mounting block (240) is provided with a threaded blind hole, and an adjustment bolt (700) is threadedly connected to the threaded blind hole.

8. The length measuring device capable of adjusting the monitoring position as described in claim 2, characterized in that: The placement plate (500) has multiple mounting screw holes.

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