Search

CN-224209769-U - Auxiliary centering device for optical measuring instrument

CN224209769UCN 224209769 UCN224209769 UCN 224209769UCN-224209769-U

Abstract

The utility model relates to the field of optical measurement auxiliary devices, in particular to an auxiliary centering device for an optical measuring instrument, which comprises a device body, wherein the device body comprises a clamping mechanism, a laser alignment mechanism and a controller, the clamping mechanism is arranged below the laser alignment mechanism and comprises a rotary driving module, a clamping disc and a plurality of clamps, the rotary driving module is used for driving the clamping disc to rotate around a vertical axis, the clamps are used for clamping a workpiece to be measured, the laser alignment mechanism comprises a moving module and an infrared laser, the moving module is used for driving the infrared laser to move along X axis and Y axis directions, the infrared laser is used for projecting a cross datum line to the clamping disc, and the controller is respectively and electrically connected with the rotary driving module, the moving module and the infrared laser. The utility model provides an auxiliary centering device for an optical measuring instrument, which realizes quick, accurate and intelligent centering and improves the automation level and the production efficiency of optical measurement.

Inventors

  • HUANG KAIXIANG

Assignees

  • 马路科技(东莞)有限公司

Dates

Publication Date
20260508
Application Date
20250429

Claims (9)

  1. 1. The auxiliary centering device for the optical measuring instrument is characterized by comprising a device body, wherein the device body comprises a clamping mechanism, a laser alignment mechanism and a controller, the clamping mechanism is arranged below the laser alignment mechanism and comprises a rotary driving module, a clamping disc and a plurality of clamps, the rotary driving module is used for driving the clamping disc to rotate around a vertical axis, the clamps are used for clamping a workpiece to be measured, the laser alignment mechanism comprises a moving module and an infrared laser, the moving module is used for driving the infrared laser to move along X-axis and Y-axis directions, the infrared laser is used for projecting a cross datum line to the clamping disc, and the controller is respectively and electrically connected with the rotary driving module, the moving module and the infrared laser; The rotary driving module comprises a support, an electric push rod, a push plate, a first sliding transmission unit, a transmission gear and a second sliding transmission unit, wherein the electric push rod is fixed on the support, the output end of the electric push rod is fixedly connected with the push plate and used for driving the push plate to linearly move along the front-back direction, the push plate is connected with the first sliding transmission unit, and the transmission gear is respectively connected with the first sliding transmission unit and the second sliding transmission unit.
  2. 2. The auxiliary centering device for the optical measuring instrument according to claim 1, wherein the first sliding transmission unit comprises a first sliding plate, a first rack, a first sliding block and a first guide rod, wherein the first sliding plate is fixedly connected with the upper end of the pushing plate, one end of the first rack is fixed on the first sliding plate, the other end of the first rack is meshed with the transmission gear, the first sliding block is provided with a plurality of first sliding blocks connected below the first sliding plate, and the first guide rod is in sliding fit with the first sliding block and is fixedly connected with the support.
  3. 3. The auxiliary centering device for the optical measuring instrument according to claim 1, wherein the second sliding transmission unit comprises a second rack, a second sliding plate, a second sliding block and a second guide rod, one end of the second rack is connected with the transmission gear in a meshed mode, the other end of the second rack is fixed to the second sliding plate, the second sliding block is provided with a plurality of second sliding blocks connected below the second sliding plate, and the second guide rod is in sliding fit with the second sliding block and fixedly connected with the support.
  4. 4. The auxiliary centering device for an optical measuring instrument according to claim 1, wherein the number of the clamps is at least three, and the three clamps are circumferentially and uniformly distributed on the upper surface of the clamping disk.
  5. 5. The auxiliary centering device for the optical measuring instrument according to claim 4, wherein the clamp comprises a base, a clamping part, an arc-shaped pushing block, a push rod and a knob, the base is arranged above the clamping disc, the lower end of the clamping part is hinged with the base, the arc-shaped pushing block is arranged at one end of the base, which is away from the clamping part, the end of the push rod is abutted with the arc-shaped pushing block, the other end of the push rod is abutted with the clamping part through the upper part of the base, and the screw end of the knob passes through the arc-shaped pushing block and is in threaded connection with the base.
  6. 6. The auxiliary centering device for an optical measuring instrument according to claim 5, wherein the clamp further comprises a return spring, one end of the return spring is connected to the base, and the other end of the return spring is connected to the clamping portion, so as to provide a return elastic force to the clamping portion.
  7. 7. The auxiliary centering device for the optical measuring instrument according to claim 1, wherein the moving module comprises a transverse moving module and a longitudinal moving module, the transverse moving module is used for driving the infrared laser to move along the X-axis direction, and the longitudinal moving module is used for driving the infrared laser to move along the Y-axis direction.
  8. 8. The auxiliary centering device for an optical measuring instrument according to claim 1, wherein the device body further comprises an optical measuring instrument, and the optical measuring instrument is connected with a transverse sliding rail, and the transverse sliding rail is used for sliding the optical measuring instrument into or out of a clamping mechanism and a laser alignment mechanism along a horizontal direction.
  9. 9. The auxiliary centering device for the optical measuring instrument according to claim 1, wherein the controller comprises an image recognition module and a motion control module, the image recognition module is used for recognizing the position deviation between the cross datum line and the workpiece, and the motion control module is used for generating a control instruction according to the position deviation, driving the rotary driving module to adjust the angle of the workpiece and driving the transverse guide rail to adjust the transverse position of the optical measuring instrument.

Description

Auxiliary centering device for optical measuring instrument Technical Field The utility model relates to the field of auxiliary devices for optical measurement, in particular to an auxiliary centering device for an optical measuring instrument. Background An optical measuring instrument is an instrument device for taking optical measurements. It is commonly applied to accurately measure the size, shape, surface characteristics, etc. of an object, and uses optical principles and techniques to obtain measurement data. For example, in industrial production, the optical measuring instrument can detect the dimensional accuracy of the part, so that the product quality meets the standard. In the field of scientific research, optical gauges can be used for the study of microstructure or optical properties. In the field of optical measurement, precise centering of a workpiece to be measured is a key link for ensuring accuracy of a measurement result. In the prior art, accurate centering of a workpiece is a key for ensuring the measurement precision, but the prior art has a plurality of defects that part of centering devices depend on manual operation, have the problems of low centering efficiency and large error, and have the defects of insufficient transmission stability and difficulty in ensuring the centering precision due to the adoption of a simple mechanical structure. Disclosure of utility model Based on the above, the utility model aims to provide an auxiliary centering device for an optical measuring instrument, which realizes quick, accurate and intelligent centering and improves the automation level and the production efficiency of optical measurement. The utility model adopts the following technical scheme: The auxiliary centering device for the optical measuring instrument comprises a device body, wherein the device body comprises a clamping mechanism, a laser alignment mechanism and a controller, the clamping mechanism is arranged below the laser alignment mechanism and comprises a rotary driving module, a clamping disc and a plurality of clamps, the rotary driving module is used for driving the clamping disc to rotate around a vertical axis, the clamps are used for clamping a workpiece to be measured, the laser alignment mechanism comprises a moving module and an infrared laser, the moving module is used for driving the infrared laser to move along X-axis and Y-axis directions, the infrared laser is used for projecting a cross datum line to the clamping disc, and the controller is respectively electrically connected with the rotary driving module, the moving module and the infrared laser. The technical scheme is further improved in that the rotary driving module comprises a support, an electric push rod, a push plate, a first sliding transmission unit, a transmission gear and a second sliding transmission unit, wherein the electric push rod is fixed on the support, the output end of the electric push rod is fixedly connected with the push plate and used for driving the push plate to linearly move along the front-back direction, the push plate is connected with the first sliding transmission unit, and the transmission gear is respectively connected with the first sliding transmission unit and the second sliding transmission unit. The technical scheme is further improved in that the first sliding transmission unit comprises a first sliding plate, a first rack, a first sliding block and a first guide rod, wherein the first sliding plate is fixedly connected with the upper end of a pushing plate, one end of the first rack is fixed to the first sliding plate, the other end of the first rack is in meshed connection with a transmission gear, the first sliding block is provided with a plurality of first sliding blocks connected to the lower portion of the first sliding plate, and the first guide rod is in sliding fit with the first sliding block and is fixedly connected with a support. The technical scheme is further improved in that the second sliding transmission unit comprises a second rack, a second sliding plate, a second sliding block and a second guide rod, one end of the second rack is connected with the transmission gear in a meshed mode, the other end of the second rack is fixed to the second sliding plate, a plurality of second sliding blocks are arranged below the second sliding plate, and the second guide rod is in sliding fit with the second sliding block and fixedly connected with the support. The technical scheme is further improved in that the number of the clamps is at least three, and the three clamps are circumferentially and uniformly distributed on the upper surface of the clamping disc. The technical scheme is further improved, the clamp comprises a base, a clamping part, an arc-shaped pushing block, a push rod and a knob, wherein the base is arranged above the clamping disc, the lower end of the clamping part is hinged with the base, the arc-shaped pushing block is arranged at one end