阅读说明：本技术 一种轮毂用激光刻字设备 (Laser lettering equipment for hub ) 是由 崔林 于 2020-06-19 设计创作，主要内容包括：本发明涉及轮毂生产技术领域,具体为一种轮毂用激光刻字设备,包括轮毂输送机构、轮毂测高机构、夹紧旋转机构、一维码扫码识别机构以及激光刻字机构；轮毂输送机构用于输送轮毂进料和出料；轮毂测高机构用于测量轮毂的高度并生成高度信号并以此为基准调节一维码扫码识别机构中活动式一维码读码机构的高度；夹紧旋转机构用于夹持、抬升和旋转轮毂；一维码扫码识别机构用于识别轮毂一维码信息并以此为基准确定激光刻字内容；激光刻字机构用于移至夹紧旋转机构下方的预定刻字位置并对轮毂进行刻字作业。本发明自动化程度高,能够提高轮毂刻字效率和准确性,同时降低轮毂刻字工段的产品报废率,节约生产资源。(The invention relates to the technical field of hub production, in particular to a laser lettering device for a hub, which comprises a hub conveying mechanism, a hub height measuring mechanism, a clamping rotating mechanism, a one-dimensional code scanning and code recognizing mechanism and a laser lettering mechanism, wherein the hub conveying mechanism is connected with the hub height measuring mechanism through a connecting rod; the hub conveying mechanism is used for conveying hub feeding and discharging; the hub height measuring mechanism is used for measuring the height of the hub, generating a height signal and adjusting the height of the movable one-dimensional code reading mechanism in the one-dimensional code scanning and recognizing mechanism by taking the height signal as a reference; the clamping and rotating mechanism is used for clamping, lifting and rotating the hub; the one-dimensional code scanning and recognizing mechanism is used for recognizing the one-dimensional code information of the hub and determining the laser lettering content by taking the one-dimensional code information as a reference; the laser lettering mechanism is used for moving to a preset lettering position below the clamping rotating mechanism and lettering operation is carried out on the hub. The invention has high automation degree, can improve the hub lettering efficiency and accuracy, simultaneously reduces the product rejection rate of the hub lettering workshop section and saves production resources.)

1. A laser lettering device for a hub is characterized by comprising a hub conveying mechanism, a hub height measuring mechanism (50), a clamping rotating mechanism (70), a one-dimensional code scanning and identifying mechanism and a laser lettering mechanism (90);

the hub conveying mechanism comprises a feeding roller way (30) and a discharging roller way (31), and the feeding roller way and the discharging roller way are respectively used for conveying hub feeding and discharging;

the hub height measuring mechanism (50) is arranged above the feeding roller way (30), and comprises a first laser range finder which is used for measuring the height of a hub, generating a height signal and adjusting the height of a movable one-dimensional code reading mechanism (81) in the one-dimensional code scanning and recognizing mechanism by taking the height signal as a reference;

the clamping and rotating mechanism (70) is arranged between the feeding roller way (30) and the discharging roller way (31) and comprises a clamping assembly (74) for clamping a wheel hub, a wheel hub lifting motor (71) for lifting the wheel hub after the wheel hub is clamped, and a hollow rotating platform (73) for driving the clamping assembly (74) to rotate;

the one-dimensional code scanning and recognizing mechanism is arranged on two sides between the feeding roller way (30) and the discharging roller way (31), and comprises a fixed one-dimensional code reading mechanism (80) and a movable one-dimensional code reading mechanism (81), and the fixed one-dimensional code reading mechanism and the movable one-dimensional code reading mechanism are used for recognizing one-dimensional code information of the hub and determining laser lettering content by taking the one-dimensional code information as a reference;

the laser lettering mechanism (90) is arranged below the position between the feeding roller way (30) and the discharging roller way (31), and comprises a three-dimensional adjusting mechanism (93) and a laser lettering assembly (91) arranged on the three-dimensional adjusting mechanism (93); the wheel hub carving machine is used for moving to a preset carving position below the clamping rotating mechanism (70) and carving the wheel hub.

2. The laser lettering device for wheel hubs as claimed in claim 1, wherein: a feeding guide mechanism (40) is arranged at an inlet of the feeding roller way (30); feeding guiding mechanism (40) include two guide post (44) that prevent other wheel hub entering feeding roller way (30) when the operation of carving characters is carved in laser mechanism (90), the below of guide post (44) is provided with and is used for the drive lift cylinder (42) that guide post (44) reciprocated, the both sides of feeding roller way (30) are provided with photoelectric switch (32), and photoelectric switch's (32) signal output part with lift cylinder (42) of feeding guiding mechanism (40) are connected for trigger the lift of guide post (44) in feeding guiding mechanism (40).

3. The laser lettering device for wheel hubs as claimed in claim 2, wherein: the feeding guide mechanism (40) further comprises a lifting cylinder fixing frame (41) fixedly arranged below the feeding roller way (30) and used for installing the lifting cylinder (42), the output end of the lifting cylinder (42) is fixedly connected with a guide column connecting plate (43), and the two guide columns (44) are symmetrically arranged on two sides of the guide column connecting plate (43).

4. The laser lettering device for wheel hubs as claimed in claim 1, wherein: the wheel hub lifting motor (71) is fixedly arranged between the feeding roller way (30) and the discharging roller way (31), the output end of the wheel hub lifting motor (71) is connected with and drives a lifting plate (72), the hollow rotating platform (73) is fixedly arranged on the lifting plate (72), and a rotating joint (731) for preventing a gas pipe in the hollow rotating platform (73) from winding when the wheel hub rotates is matched on the hollow rotating platform (73); the clamping assembly (74) comprises a base plate (741) driven to rotate by the hollow rotating platform (73) and a bearing plate (742) fixedly arranged below the base plate (741), a clamping cylinder (743) is fixedly arranged on the base plate (741), movable plates (744) driven by the clamping cylinder (743) and capable of synchronously sliding inwards are arranged on the bearing plate (742), and clamping guide columns (747) used for clamping wheel hub rims are arranged on the two movable plates (744).

5. The laser lettering device for wheel hubs as claimed in claim 4, wherein: link rods (746) are movably arranged on the opposite sides of the two movable plates (744), a linkage plate (745) is rotatably connected to the bearing plate (742), and two ends of the link rods (746) are rotatably connected with the movable plates (744) and the linkage plate (745) respectively; the bearing plate (742) is provided with a sliding rail (7421) along the length direction thereof, and the bottom of the movable plate (744) is provided with a sliding seat (7441) matched with the sliding rail (7421).

6. The laser lettering device for wheel hubs as claimed in claim 1, wherein: the fixed one-dimensional code reading mechanism (80) and the movable one-dimensional code reading mechanism (81) are arranged oppositely; the fixed one-dimensional code reading mechanism (80) is a one-dimensional code reader fixedly arranged on one side of the hub conveying mechanism, and when the hub is arranged on the roller way, the one-dimensional code reader corresponds to a one-dimensional code of the lower rim of the hub; the movable one-dimensional code reading mechanism (81) comprises a one-dimensional code reader movably arranged on the other side of the hub conveying mechanism and an electric cylinder for driving the one-dimensional code reader to adjust the height, and when the hub is arranged on the roller way, the one-dimensional code reader corresponds to the one-dimensional code on the upper rim of the hub.

7. The laser lettering device for wheel hubs as claimed in claim 1, wherein: the three-dimensional adjusting mechanism (93) comprises an X-axis adjusting mechanism, a Y-axis adjusting mechanism and a Z-axis adjusting mechanism which are respectively arranged along the X-axis direction, the Y-axis direction and the Z-axis direction, and the three groups of adjusting mechanisms have the same structure; the laser lettering assembly (91) comprises a three-dimensional dynamic focusing laser galvanometer (911), a laser connected with the three-dimensional dynamic focusing laser galvanometer and a second laser ranging instrument (912), wherein the three-dimensional dynamic focusing laser galvanometer (911) is arranged on one side of the Z-axis adjusting mechanism through an installation plate (934); the laser lettering mechanism (90) further comprises an industrial camera (92), the three-dimensional dynamic focusing laser galvanometer (911), the second laser range finder (912) and the industrial camera (92) are arranged adjacently, a lettering needle head (913) is fixedly arranged at the front end of the three-dimensional dynamic focusing laser galvanometer (911), laser emitted by the laser is focused by the three-dimensional dynamic focusing laser galvanometer (911) and then lettered on the back of a hub rib by using the lettering needle head (913), the second laser range finder (912) is used for measuring the distance between the hub and the three-dimensional dynamic focusing laser galvanometer (911) and feeding back the distance to the three-dimensional adjusting mechanism (93), the three-dimensional adjusting mechanism (93) adjusts the three-dimensional dynamic focusing laser galvanometer (911) to reach the working distance (namely the focal distance) with the hub according to the received distance signal, and the industrial camera (92) is used for feeding back the lettering position of the hub to the three-dimensional adjusting mechanism (93), and the three-dimensional adjusting mechanism (93) finely adjusts the X-axis adjusting mechanism and the Y-axis adjusting mechanism according to the received lettering position signal.

8. The laser lettering device for wheel hubs as claimed in claim 1, wherein: a truss (60) is erected on the hub conveying mechanism, and the hub height measuring mechanism (50), the one-dimensional code scanning and code recognizing mechanism and the laser lettering mechanism (90) are all arranged on the truss (60); an upper metal plate outer cover (20) is covered on the hub conveying mechanism and positioned outside the truss (60), and a lower metal plate outer cover (10) is arranged below the upper metal plate outer cover (20); go up panel beating dustcoat (20) and all seted up the opening in one side that is close to feed roll table (30) and ejection of compact roll table (31), the front of going up panel beating dustcoat (20) is provided with operation panel (21), operation panel (21) are including display, touch screen, mouse and keyboard, the top of going up panel beating dustcoat (20) is provided with tricolor lamp (22) that are used for showing machine running state.

Technical Field

The invention relates to the technical field of hub production, in particular to laser lettering equipment for a hub.

Background

The method comprises the following steps that X-ray numbers, heat treatment numbers, production dates and the like can be engraved on low-pressure cast aluminum alloy hubs in the production and manufacturing process, and the conventional number engraving modes mainly comprise two modes, namely a mode of manually engraving steel marks and a mode of engraving by a needle type numbering machine; the manual steel seal printing mode can arrange one employee to print a number at each work station, which causes great waste of production resources and increases the cost of enterprises, and the marking accuracy is limited by the recognition capability of workers on the wheel hub, and similar wheel types are easy to be mistaken; when the needle type marking machine works, the needle type marking machine has harsh noise and is a noise pollution source in a workshop, a marking needle needs to be replaced periodically, and the marking needle is damaged or no early warning mechanism is arranged after the marking needle is damaged, so that a large number of hubs are transferred to the next work station without marking, and the hubs cannot be traced and scrapped; the large impact force generated when the needle type marking machine is used for marking is easy to damage the internal structure of the hub; the definition of needle type carving is limited by a carving needle head, and the needle head cannot be made very thin in consideration of durability, so that the writing of the needle type carving is fuzzy and is not easy to identify; the needle type engraving machine adopts the one-dimensional code as a positioning reference for engraving, has low positioning precision, and is easy to deviate from the range of an engraving platform to cause hub scrapping. In view of the above, a laser lettering device for wheel hub is needed to solve the above drawbacks.

Disclosure of Invention

The invention aims to provide laser lettering equipment for a hub, which is used for improving the lettering efficiency and accuracy of the hub, reducing the product rejection rate of a hub lettering workshop section and saving production resources.

The above object of the present invention is achieved by the following technical solutions:

a laser lettering device for a hub comprises a hub conveying mechanism, a hub height measuring mechanism, a clamping rotating mechanism, a one-dimensional code scanning and code recognizing mechanism and a laser lettering mechanism;

the hub conveying mechanism comprises a feeding roller way and a discharging roller way, and the feeding roller way and the discharging roller way are respectively used for conveying hub feeding and discharging;

the hub height measuring mechanism is arranged above the feeding roller way and comprises a first laser range finder which is used for measuring the height of a hub, generating a height signal and adjusting the height of the movable one-dimensional code reading mechanism in the one-dimensional code scanning and identifying mechanism by taking the height signal as a reference;

the clamping and rotating mechanism is arranged between the feeding roller way and the discharging roller way, and comprises a clamping assembly for clamping a wheel hub, a wheel hub lifting motor for lifting the wheel hub after the wheel hub is clamped, and a hollow rotating platform for driving the clamping assembly to rotate;

the one-dimensional code scanning and recognizing mechanism is arranged on two sides between the feeding roller way and the discharging roller way, comprises a fixed one-dimensional code reading mechanism and a movable one-dimensional code reading mechanism, and is used for recognizing one-dimensional code information of the hub and determining laser lettering content by taking the one-dimensional code information as a reference;

the laser lettering mechanism is arranged below the space between the feeding roller way and the discharging roller way, and comprises a three-dimensional adjusting mechanism and a laser lettering assembly arranged on the three-dimensional adjusting mechanism; the wheel hub carving machine is used for moving to a preset carving position below the clamping and rotating mechanism and carving characters on the wheel hub.

Optionally, a feeding guide mechanism is arranged at an inlet of the feeding roller way; feeding guiding mechanism includes two guide posts that prevent other wheel hubs to get into the feeding roll table when the operation of carving characters is carved to the mechanism of carving characters in the laser, the below of guide post is provided with and is used for the drive the lift cylinder that the guide post reciprocated, the both sides of feeding roll table are provided with photoelectric switch, and photoelectric switch's signal output part with feeding guiding mechanism's lift cylinder is connected for trigger the lift of guide post among the feeding guiding mechanism.

Optionally, the feeding guide mechanism further comprises a lifting cylinder fixing frame fixedly arranged below the feeding roller way and used for installing the lifting cylinder, the output end of the lifting cylinder is fixedly connected with guide column connecting plates, and the two guide columns are symmetrically arranged on two sides of the guide column connecting plates.

Optionally, the hub lifting motor fixing frame is arranged between the feeding roller way and the discharging roller way, the output end of the hub lifting motor is connected with and drives a lifting plate, the hollow rotating platform is fixedly arranged on the lifting plate, and a rotating joint for preventing a gas tube in the hollow rotating platform from winding when the hub rotates is matched on the hollow rotating platform; the clamping assembly comprises a base plate driven by the hollow rotating platform to rotate and a bearing plate fixedly arranged below the base plate, a clamping cylinder is fixedly arranged on the base plate, movable plates driven by the clamping cylinder and capable of synchronously sliding inwards are arranged on the bearing plate, and clamping guide pillars used for clamping the wheel rim of the wheel hub are arranged on the movable plates.

Optionally, link rods are movably arranged on the opposite sides of the two movable plates, a linkage plate is rotatably connected to the bearing plate, and two ends of each link rod are rotatably connected with the movable plates and the linkage plate respectively; the supporting plate is provided with a slide rail along the length direction, and the bottom of the movable plate is provided with a slide seat matched with the slide rail.

Optionally, the fixed one-dimensional code reading mechanism and the movable one-dimensional code reading mechanism are arranged oppositely; the fixed one-dimensional code reading mechanism is a one-dimensional code reader fixedly arranged on one side of the hub conveying mechanism, and when the hub is arranged on the roller way, the one-dimensional code reader corresponds to a one-dimensional code of the lower rim of the hub; the movable one-dimensional code reading mechanism comprises a one-dimensional code reader movably arranged on the other side of the hub conveying mechanism and an electric cylinder for driving the one-dimensional code reader to adjust the height, and when the hub is arranged on the roller way, the one-dimensional code reader corresponds to the one-dimensional code on the upper rim of the hub.

Optionally, the three-dimensional adjusting mechanism includes an X-axis adjusting mechanism, a Y-axis adjusting mechanism and a Z-axis adjusting mechanism along the X-axis, Y-axis and Z-axis directions, respectively, and the three groups of adjusting mechanisms have the same structure; the laser lettering assembly comprises a three-dimensional dynamic focusing laser galvanometer, a laser connected with the three-dimensional dynamic focusing laser galvanometer and a second laser ranging instrument, and the three-dimensional dynamic focusing laser galvanometer is arranged on one side of the Z-axis adjusting mechanism through a mounting plate; the laser lettering mechanism also comprises an industrial camera, the three-dimensional dynamic focusing laser galvanometer, the second laser range finder and the industrial camera are arranged adjacently, the front end of the three-dimensional dynamic focusing laser galvanometer is fixedly provided with a lettering needle head, laser emitted by the laser is focused by the three-dimensional dynamic focusing laser galvanometer and then lettered on the back of the hub rib by utilizing the lettering needle head, the second laser range finder is used for measuring the distance between the hub and the three-dimensional dynamic focusing laser galvanometer and feeding back the distance to the three-dimensional adjusting mechanism, the three-dimensional adjusting mechanism adjusts the distance between the three-dimensional dynamic focusing laser galvanometer and the hub to reach the working distance (namely the focal length) according to the received distance signal, the industrial camera is used for feeding back the carving position of the hub to the three-dimensional adjusting mechanism, and the three-dimensional adjusting mechanism finely adjusts the X-axis adjusting mechanism and the Y-axis adjusting mechanism according to the received carving position signal.

Optionally, a truss is erected on the hub conveying mechanism, and the hub height measuring mechanism, the one-dimensional code scanning and code recognizing mechanism and the laser lettering mechanism are all mounted on the truss; an upper metal plate outer cover is covered on the hub conveying mechanism and positioned outside the truss, and a lower metal plate outer cover is arranged below the upper metal plate outer cover; go up the panel beating dustcoat and all seted up the opening near one side of feed roll table and ejection of compact roll table, the front of going up the panel beating dustcoat is provided with the operation panel, the operation panel includes display, touch screen, mouse and keyboard, the top of going up the panel beating dustcoat is provided with the tristimulus lamp that is used for showing machine running state.

Compared with the prior art, the invention provides laser lettering equipment for a hub, which has the following beneficial effects: the invention has high automation degree, can improve the hub lettering efficiency and accuracy, simultaneously reduces the product rejection rate of the hub lettering workshop section and saves production resources; the invention has no aluminum scraps, low noise and no noise pollution when in lettering use; the lettering method has the advantages that the lettering is clear, the lettering speed is high, and the lettering content is confirmed by the industrial camera, so that unqualified products are prevented from flowing into the next work station; the invention adopts the mode of combining the one-dimensional code scanning recognition mechanism and the industrial camera for positioning, so that the positioning is more accurate; the invention has long service life (more than 80000 hours) and is free from maintenance.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention with the upper sheet metal cover removed;

FIG. 3 is a schematic structural view of the present invention with the upper and lower sheet metal covers removed;

FIG. 4 is a schematic view of a feed guide mechanism according to the present invention;

FIG. 5 is a schematic view of a clamping and rotating mechanism of the present invention;

FIG. 6 is a schematic view of the hub clamping assembly of the present invention;

FIG. 7 is a schematic view of a laser engraving mechanism of the present invention;

fig. 8 is an enlarged view of a portion a of fig. 7.

In the figure: 100. laser lettering equipment; 10. a lower metal plate outer cover; 20. an upper metal plate outer cover; 21. an operation table; 22. a three-color lamp; 30. a feeding roller bed; 31. a discharging roller bed; 32. a photoelectric switch; 40. a feed guide mechanism; 41. a lifting cylinder fixing frame; 42. a lifting cylinder; 43. a guide post connecting plate; 44. a guide post; 50. a hub height measuring mechanism; 60. a truss; 61. a cross beam; 70. a clamping and rotating mechanism; 71. a hub lifting motor; 72. lifting the plate; 73. a hollow rotating platform; 731. a rotary joint; 74. a clamping assembly; 741. a base plate; 742. a carrier plate; 7421. a slide rail; 743. a clamping cylinder; 744. a movable plate; 7441. a slide base; 745. a linkage plate; 746. a link rod; 747. clamping the guide pillar; 80. a fixed one-dimensional code reading mechanism; 81. a movable one-dimensional code reading mechanism; 90. a laser lettering mechanism; 91. a laser lettering assembly; 911. three-dimensional dynamic focusing laser galvanometer; 912. a second laser rangefinder; 913. a lettering needle head; 92. an industrial camera; 93. a three-dimensional adjustment mechanism; 931. a base in the X direction; 9311. an X-direction slide rail; 9312. an X-direction groove type photoelectric sensor; 932. a Y-direction base; 9321. a Y-direction slide rail; 9322. a Y-direction groove type photoelectric sensor; 9323. an X-direction shutter; 933. a Z-direction base; 9331. a Z-direction slide rail; 9332. a Z-direction groove type photoelectric sensor; 9333. a Y-direction light shield; 934. mounting a plate; 9341. a Z-direction shutter.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.