阅读说明：本技术 一种步进电机驱动皮带传动单轴往复移动平台测速装置 (Stepping motor driven belt transmission single-shaft reciprocating platform speed measuring device ) 是由 殷咸青 王轲岩 牛靖 李成新 娄丽艳 贾云杰 于 2020-05-21 设计创作，主要内容包括：一种步进电机驱动皮带传动单轴往复移动平台测速装置,包括用于通过图像分析测量速度的运动刻度尺,位于运动刻度尺上方设置有高速相机,高速相机通过支撑组件进行支撑,所述运动刻度尺设置在往复移动平台上,往复移动平台设置在传动皮带上,传动皮带通过传动转轴和步进电机相连,所述的运动刻度尺侧面对应设置有固定指针。本发明解决移动平台高速移动过程中,无法测量其往复运动速度的问题,能够有效得减少速度测量误差。(The utility model provides a step motor drive belt transmission unipolar reciprocating motion platform speed sensor, is located the motion scale top and is provided with high-speed camera including being used for through the motion scale of image analysis measuring speed, and high-speed camera supports through supporting component, the motion scale sets up on reciprocating motion platform, and reciprocating motion platform sets up on driving belt, and driving belt links to each other through transmission pivot and step motor, motion scale side correspondence be provided with fixed pointer. The invention solves the problem that the reciprocating motion speed of the mobile platform cannot be measured in the high-speed moving process, and can effectively reduce the speed measurement error.)

1. The utility model provides a step motor drive belt transmission unipolar reciprocating motion platform speed sensor, its characterized in that, including motion scale (1) that is used for measuring speed through image analysis, be located motion scale (1) top and be provided with high-speed camera (3), high-speed camera (3) support through supporting component, motion scale (1) sets up on reciprocating motion platform (4), and reciprocating motion platform (4) set up on driving belt (5), and driving belt (5) link to each other through transmission pivot (6) and step motor (7), motion scale (1) side correspondence be provided with fixed pointer (2).

2. The stepping motor driven belt driven single-shaft reciprocating platform speed measuring device according to claim 1, wherein the reciprocating platform (4) and the driving belt (5) do not move relatively, and the driving belt (5) and the driving rotating shaft (6) do not slide relatively.

3. The stepping motor driven belt transmission single shaft reciprocating platform speed measuring device according to claim 1, wherein the fixed pointer (2) is supported by a pointer pillar (8), the pointer pillar (8) and the rotating shaft bracket (9) are connected with a shock absorption base (10) through screws, and the shock absorption base (10) is made of gray cast iron material.

4. A stepper motor driven belt driven single axis reciprocating platform speed measurement device as claimed in claim 1, wherein the high speed camera (3) is supported by a tripod.

5. A stepper motor driven belt driven single axis reciprocating motion platform speed measurement device as claimed in claim 1, wherein the minimum scale unit of the motion scale (1) is 500 microns, and the sampling rate of the high speed camera (3) is greater than 10 kHz.

6. The device for measuring the speed of a stepping motor driven belt driven single-shaft reciprocating platform according to claim 1, wherein the moving graduated scale (1) and the fixed pointer (2) are positioned on the same focusing surface of the high-speed camera (3), the moving graduated scale (1) and the fixed pointer (2) are positioned on the same focusing surface of the high-speed camera, and the distance between the moving graduated scale and the fixed pointer (2) is not more than 1 mm.

Technical Field

The invention relates to the technical field of speed measuring devices used under the condition of high-speed movement of workpieces, in particular to a speed measuring device of a stepping motor-driven belt-driven single-shaft reciprocating moving platform.

Background

The ultra-high speed remanufacturing process is a new material processing process and requires extremely high relative speed of a workpiece clamping device to be processed and a heat source. Common speed measuring devices include a radar speed measuring instrument and a laser speed measuring instrument; however, the radar velocimeter has long measurement interval time and lower measurement precision on the speed of a high-speed moving workpiece; the laser velocimeter has high precision, but the product price is expensive, so the two methods can not accurately measure the moving speed of the high-speed moving workpiece at low cost.

Chinese patent CN209803168U discloses a speed measuring device for a super-long high-speed moving workpiece, belongs to the technical field of speed measuring devices, and solves the problems that the flaw on the surface of the workpiece of the existing device can absorb laser, so that the measurement cannot be carried out, and the precision cannot meet the actual requirement; the technical characteristics are as follows: the linear workpiece is arranged on the upper part of the rolling component, the speed measuring component for measuring the speed of the linear workpiece is arranged on the front side of the linear workpiece, the outer wall of the linear workpiece is provided with a plurality of marking belts for marking the linear workpiece, and the marking belts are provided with a plurality of marking points; but the device can only measure the speed of a workpiece with unidirectional motion, cannot measure the instantaneous speed of a workpiece with reciprocating motion, and a camera and a roller are not relatively static, so that a measurement error can be generated.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a speed measuring device of a stepping motor driven belt transmission single-shaft reciprocating moving platform, which solves the problem that the reciprocating speed of the moving platform cannot be measured in the high-speed moving process of the moving platform and can effectively reduce the speed measuring error.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a step motor drive belt transmission unipolar reciprocating motion platform speed sensor, is located motion scale 1 top through image analysis measuring speed including being used for being provided with high-speed camera 3 above the motion scale 1, and high-speed camera 3 supports through supporting component, motion scale 1 sets up on reciprocating motion platform 4, and reciprocating motion platform 4 sets up on driving belt 5, and driving belt 5 links to each other through transmission pivot 6 and step motor 7, 1 side of motion scale correspond and be provided with fixed pointer 2.

The reciprocating platform 4 and the transmission belt 5 do not move relatively, and the transmission belt 5 and the transmission rotating shaft 6 do not slide relatively.

The fixed pointer 2 is supported by a pointer pillar 8, the pointer pillar 8 and a rotating shaft support 9 are connected with a damping base 10 through screws, and the damping base 10 is made of gray cast iron materials.

The high-speed camera 3 is supported by a tripod.

The minimum scale unit of the motion scale 1 is 500 micrometers, and the sampling rate of the high-speed camera 3 is greater than 10 kHz.

The moving graduated scale 1 and the fixed pointer 2 are positioned on the same focusing surface of the high-speed camera 3, the moving graduated scale 1 and the fixed pointer 2 are positioned on the same focusing surface of the high-speed camera, and the distance between the moving graduated scale and the fixed pointer is not more than 1 mm.

The invention has the beneficial effects that:

the speed measuring method that the relative position of the fixed pointer and the moving graduated scale is measured by the high-speed camera is adopted, so that the speed of the reciprocating high-speed moving platform can be measured; because the fixed pointer and the damping base are relatively static, the shaking of the fixed pointer in the moving process of the moving platform is avoided, and the speed measurement error can be reduced.

Drawings

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

Fig. 2 is a front view of the invention.

Fig. 3 is a top view of the invention.

In the figure, 1-a moving graduated scale, 2-a fixed pointer, 3-a high-speed camera, 4-a reciprocating platform, 5-a transmission belt, 6-a transmission rotating shaft, 7-a stepping motor, 8-a pointer support, 9-a rotating shaft support and 10-a shock absorption base.

Detailed Description

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