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CN-121988889-A - Marking device and working method

CN121988889ACN 121988889 ACN121988889 ACN 121988889ACN-121988889-A

Abstract

The invention provides a marking device and a working method, which relate to the field of laser marking equipment and aim at the problem that the marking pose of diversified spaces of shaft parts and gear parts is difficult to effectively compatible at present, by arranging a rotary driving mechanism in a marking assembly and simultaneously connecting a vibrating lens and a ranging mechanism to the rotary driving mechanism, the synchronous rotary direction adjustment of a light emitting direction and the ranging direction is realized, so that the equipment can flexibly switch the vertical or horizontal light emitting angle according to different marking requirements of the shaft parts horizontally placed on a first clamp or the wheel parts placed on a second clamp, the end face marking of the long shaft parts can be completed without vertical clamping, and the defects of limited Z-axis height and unstable workpieces are overcome; meanwhile, by matching with a special positioning structure in the ranging mechanism, the sensor can move to a light-emitting path during measurement to realize accurate ranging coaxial or parallel to laser, and can be withdrawn in time during marking to avoid interference.

Inventors

  • BAI XI
  • Mei miao

Assignees

  • 济南春博激光科技有限公司

Dates

Publication Date
20260508
Application Date
20260108

Claims (10)

  1. 1. A marking apparatus, comprising: The positioning assembly comprises a first clamp and a second clamp which are horizontally and sequentially distributed, the first clamp is provided with a supporting plate for horizontally bearing the outer wall of the shaft part, the top of the supporting plate is provided with a first positioning groove for bearing and positioning the shaft part, the second clamp comprises a positioning seat, and the positioning seat is provided with a second positioning groove which is adaptive to the outline of the wheel part; the driving assembly comprises a triaxial movement mechanism, wherein one horizontal axis movement module is parallel to the distribution direction of the first clamp; The marking assembly is arranged at the output end of the driving assembly and comprises a rotary driving mechanism, a ranging mechanism and a vibrating mirror light path, wherein a vibrating lens of the vibrating mirror light path and the ranging mechanism are connected to the rotary driving mechanism and are driven to synchronously rotate by the rotary driving mechanism so as to change the light emitting direction and the ranging direction, the ranging mechanism comprises a ranging sensor and a positioning structure, the positioning structure drives the ranging sensor to withdraw or move to the light emitting path of the light emitting opening, and the vibrating mirror light path is focused according to data measured by the ranging sensor.
  2. 2. The marking device as claimed in claim 1, wherein the first fixture further comprises a first base plate and a guide rail, one support plate is fixed on the first base plate, a positioning plate is installed outside one end of the first positioning groove for abutting against one end of the shaft-like part, the other support plate is slidably installed on the guide rail through a slide plate, and a first buffer pad is installed in the first positioning groove.
  3. 3. The marking device of claim 2, wherein the slide plate is provided with a rail clamp, and the first positioning grooves at the tops of the two support plates are combined with the first cushion pad to form the first bearing part.
  4. 4. The marking device of claim 1, wherein the second fixture further comprises a second base plate and a pad plate laid on the second base plate, the positioning seat is detachably mounted on the first base plate, the pad plate is mounted on the first base plate, a second buffer pad abutting against the outline of the wheel-shaped part is mounted in the second positioning groove, and the second positioning groove forms a second bearing part in combination with the pad plate below the second buffer pad.
  5. 5. The marking device as claimed in claim 4, wherein the second fixture further comprises a positioning block and a limiting block, the positioning block replacing positioning seat is detachably mounted on the second bottom plate, the limiting block penetrates through the base plate to be detachably mounted on the second bottom plate, the positioning block and the limiting block are abutted to and support the outline of the wheel-shaped part to form a third bearing part, and one end of the third bearing part is provided with a side positioning piece to be abutted to the end face of the wheel-shaped part.
  6. 6. The marking device of claim 1, wherein the three-axis motion mechanism comprises an X-axis linear module, a Y-axis linear module, and a Z-axis linear module, the X-axis linear module being parallel to the first jig distribution direction, the X-axis linear module being perpendicular to the first jig distribution direction.
  7. 7. A marking apparatus as claimed in claim 1 or 6 wherein the rotary drive mechanism comprises a bracket through which the distance measuring mechanism is mounted on the vibrating lens with the vibrating lens light exit opening facing the operative position.
  8. 8. The marking device of claim 7, wherein the galvanometer optical path of the marking assembly is mounted at the output end of the driving assembly by an optical path adjusting bracket, and the optical path adjusting bracket is used for adjusting the pitch angle of the galvanometer optical path.
  9. 9. A working method of a marking device is characterized in that, use of a marking apparatus according to any one of claims 1-8, comprising: if the workpiece is a wheel type part, the workpiece is placed on a positioning seat of a second clamp, and the contour of the workpiece is matched with the contour of the workpiece by using a second positioning groove; the driving assembly works to drive the marking assembly to move to the upper part or the side of the selected fixture; According to the marking requirement, the rotary driving mechanism acts to drive the vibrating lens and the ranging mechanism to synchronously rotate, and the light outlet and the ranging sensor are adjusted to the corresponding light outlet direction; the distance measuring sensor measures the actual distance from the vibration lens to the marking surface of the part and feeds data back to the control system; After the measurement is completed, the positioning structure drives the distance measuring sensor to withdraw from the light outlet path so as to avoid blocking laser or being accidentally injured by the laser; And after the focal length is adjusted, the vibrating mirror optical path starts to work, emits laser and completes marking on the surface of the workpiece according to a preset track.
  10. 10. The method of claim 9, wherein the driving assembly drives the marking assembly to move to the side of the workpiece if the marking assembly is a shaft type part, and drives the marking assembly to move to the upper side of the workpiece if the marking assembly is a wheel type part.

Description

Marking device and working method Technical Field The invention relates to the field of laser marking equipment, in particular to a marking device and a working method. Background The laser marking technology is widely applied to the field of mechanical manufacturing due to the advantages of permanent, clear and consumable-free marking. The existing laser marking equipment is usually designed for single type workpieces, and mainly adopts a fixed type vertical light path matched with a plane workbench for gear type and other disc-shaped parts, so that the top surface marking requirement can be met only, and the light path is usually at a fixed angle (mostly vertically downwards) for shaft type parts, though the rotary clamp is used for assisting, and is mainly used for striking the outer cylindrical surface of a shaft. In actual production, shafts (e.g., drive shafts) and wheels (e.g., planetary gears, ring gears, shaft sleeves) are often mating parts in mechanical drive systems (e.g., gearboxes, speed reducers). The manufacturing enterprises often need to process the two types of parts at the same time, and in order to meet the marking requirements of the two types of parts, the enterprises often need to purchase special equipment respectively, so that the equipment purchase cost is increased, and a large amount of workshop site resources are occupied. However, simply combining the existing shaft-type marking machine with the gear-type marking machine or listing two kinds of jigs on a universal triaxial platform cannot effectively solve the problem of comprehensive marking, and has the disadvantage of being difficult to overcome. The main reason is that the light path direction contradicts the suitability of the workpiece structure. For example, gear parts mainly need to strike the end face of a light path vertically downwards, and shaft parts (especially a long shaft) need to strike the end face of the light path, so that the shaft is usually required to be vertically clamped on general equipment, but the shaft is limited by the Z-axis stroke height of the equipment (the long shaft cannot be accommodated) and the clamping stability is poor. If the shaft is placed horizontally, the vertically fixed light path cannot strike its end face. In addition, conventional range finding focusing sensor is fixed in the external support more, can't follow the optical path rotation, perhaps when the optical path is rotatory to horizontal side direction marking, and fixed sensor can be because of the visual field shelter from or space interference and inefficacy, leads to unable realization automatic accurate focusing. Therefore, the single fixed light path output direction and the ranging mode cannot be simultaneously matched with the end face of the shaft part when the shaft part is horizontally placed and the end face or the curved surface of the gear part when the gear part is horizontally placed, so that the space marking pose requirement is difficult to meet. Disclosure of Invention In view of the above, the invention provides a marking device and a working method, which can improve the universality of equipment, realize multi-angle accurate marking, and reduce the production cost and the space occupation. The first object of the present invention is to provide a marking device, which adopts the following scheme: Comprising the following steps: The positioning assembly comprises a first clamp and a second clamp which are horizontally and sequentially distributed, the first clamp is provided with a supporting plate for horizontally bearing the outer wall of the shaft part, the top of the supporting plate is provided with a first positioning groove for bearing and positioning the shaft part, the second clamp comprises a positioning seat, and the positioning seat is provided with a second positioning groove which is adaptive to the outline of the wheel part; the driving assembly comprises a triaxial movement mechanism, wherein one horizontal axis movement module is parallel to the distribution direction of the first clamp; The marking assembly is arranged at the output end of the driving assembly and comprises a rotary driving mechanism, a ranging mechanism and a vibrating mirror light path, wherein a vibrating lens of the vibrating mirror light path and the ranging mechanism are connected to the rotary driving mechanism and are driven to synchronously rotate by the rotary driving mechanism so as to change the light emitting direction and the ranging direction, the ranging mechanism comprises a ranging sensor and a positioning structure, the positioning structure drives the ranging sensor to withdraw or move to the light emitting path of the light emitting opening, and the vibrating mirror light path is focused according to data measured by the ranging sensor. Further, the first fixture further comprises a first bottom plate and a guide rail, one supporting plate is fixed on the first bottom plate, a positioning plate