Laser marking machine

Abstract

In order to solve the problems of low precision and work efficiency of door and window marking, the present invention provides a laser marking machine, comprising a bed, a fixture beam distributed along the X-axis direction of the bed and connected to the bed in a sliding manner along the Y-axis direction, a cantilever beam connected to the bed in a sliding manner along the X-axis direction of the bed, and a Z-axis head, the fixture beam is connected to a fixture seat in a sliding manner along the X-axis direction of the bed, a guide rail brake is connected between the fixture seat and the fixture beam, the Z-axis head is connected to the cantilever beam in a sliding manner along the Y-axis direction of the bed, a laser head is arranged on the Z-axis head, the laser head is connected to slide up and down along the Z-axis direction of the bed, the laser head is connected to the Z-axis head in a rotation manner parallel to the X-axis, an X-direction positioning seat is also arranged on the end of the fixture beam, a mechanical valve and a guide column located on the mechanical valve are arranged on the fixture seat, and a lever is arranged on the Z-axis head, the lever moves downward with the laser head to press the guide column and the mechanical valve, thereby opening the mechanical valve connected to the guide rail brake pressure supply pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of machine tools, and in particular to a laser scribing machine. Background Art

[0002] The precision of cutting and drilling holes of aluminum alloy door and window profiles is getting higher and higher, so the assembly precision requirements of doors and windows are also getting higher and higher. Assembly is to connect the profiles with screws according to the requirements of the construction drawing. There are three ways to assemble aluminum alloy doors and windows: 45° angle docking, right angle docking and vertical docking. Among them, the assembly positions between the profiles during right angle docking and vertical docking need to be manually measured and marked by the assembly workers on site according to the data of the drawings, so the production efficiency and installation precision are low. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a laser scribing machine, and the technical solution adopted is as follows:

[0004] A laser marking machine, characterized in that it comprises a bed, a fixture beam, a cantilever beam and a Z-axis head, wherein the fixture beam is distributed along the X-axis direction of the bed, and the fixture beam is slidably connected to the bed along the Y-axis direction, a plurality of fixture seats are slidably connected to the fixture beam along the X-axis direction of the bed, a guide rail brake is connected between the fixture seat and the fixture beam, the cantilever beam is slidably connected to the bed along the X-axis direction of the bed, the Z-axis head is slidably connected to the cantilever beam along the Y-axis direction of the bed, a laser head located above the fixture seat is arranged on the Z-axis head, and the laser head It is connected to the Z-axis machine head by sliding up and down along the Z-axis direction of the bed, and the laser head is connected to the Z-axis machine head by rotation parallel to the X-axis. In addition, an X-direction positioning seat for positioning the profile is also provided at the end of the fixture beam, and a mechanical valve connected to the guide rail brake pressure supply pipeline is provided on the fixture seat, and a guide column is provided above the mechanical valve switch. The guide column and the fixture seat are connected to each other by sliding up and down, and a lever for driving the guide column to toggle the mechanical valve switch is provided on the Z-axis machine head, and the lever is fixedly connected to the bottom of the Z-axis machine head and moves up and down with the laser head.

[0005] Preferably, the X-direction positioning seat is composed of a positioning frame, a positioning plate, a guide cylinder and a displacement sensor for detecting the displacement of the positioning plate. The positioning frame is fixedly connected to the top of the fixture beam, the guide cylinder is fixedly connected to the positioning bracket, and the positioning plate is fixedly connected to the guide cylinder piston rod.

[0006] Preferably, the displacement sensor is a grating ruler.

[0007] Preferably, a return spring is provided between the guide column and the mechanical valve switch.

[0008] Preferably, the guide rail brake is a normally closed guide rail brake.

[0009] The beneficial effects of the present invention are:

[0010] 1. The Z-axis machine head drives the fixture seat to move synchronously through the lever and guide column. After the Z-axis machine head lever leaves the fixture seat, the fixture seat is locked by the guide rail brake to prevent the workpiece from moving, thereby improving the processing accuracy;

[0011] 2. The X-direction positioning seat measures the X-direction position of the workpiece through the positioning plate and the grating ruler. The Z-axis head performs subsequent marking operations based on the measured workpiece position information to improve the marking accuracy;

[0012] 3. The fixture beam can move along the Y-axis direction of the bed, which is convenient for the Z-axis machine head to process the inner and outer sides of the workpiece, which is conducive to reducing the width of the bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structural diagram of the present invention

[0014] Figure 2 Schematic diagram of the fixture beam structure

[0015] Figure 3 Schematic diagram of the fixture seat structure

[0016] Figure 4 Schematic diagram of the Z-axis head and fixture seat structure

[0017] Figure 5 Schematic diagram of the position relationship between the lever and the guide column

[0018] Figure 6 Schematic diagram of the laser head structure

[0019] Figure 7 Schematic diagram of the X-direction positioning seat structure

[0020] Among them, 1-bed, 2-protective cover, 3-fixture beam, 4-cantilever beam, 5-Z-axis machine head, 6-controller, 7-fixture seat, 8-X-direction positioning seat, 9-guide column, 10-mechanical valve, 11-guide rail brake, 12-lever, 13-servo motor, 14-reducer, 15-laser head, 16-positioning bracket, 17-guide rail cylinder, 18-positioning plate, 19-grating ruler, 20-reset spring, 21-laser head mounting plate, 22-mounting seat, 23-conveyor belt, 24-driving pulley, 25-driven pulley. DETAILED DESCRIPTION

[0021] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0022] In the description of the invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0023] like Figure 1-7The laser marking machine shown mainly includes a bed 1, a shield 2, a fixture beam 3, a cantilever beam 4 and a Z-axis head 5. The shield 2 is fixedly connected to the upper outer side of the bed 1. The length of the fixture beam 3 is horizontally distributed along the left and right directions. The left and right ends of the fixture beam 3 slide along the Y-axis direction, that is, the front and rear direction of the bed 1 through the guide rail slider. Three fixture seats 7 and an X-direction positioning seat 8 are arranged on the fixture beam 3. The fixture seat 7 slides left and right along the length direction of the fixture beam 3. A normally closed guide rail brake 11 is connected between the fixture seat 7 and the fixture beam 3. A guide column 9 and a mechanical valve 10 arranged on the air supply pipeline of the guide rail brake 11 are also arranged above. The axis of the guide column 9 is distributed in the vertical direction, and the guide column 9 is connected by sliding up and down between the fixture seats 7. The guide column 9 is located directly above the switch button of the mechanical valve 10, and a reset spring 20 is arranged between the two. The cantilever beam 4 is located above the fixture crossbeam 3, and the cantilever beam 4 is connected to the bed 1 by sliding left and right along the X-axis direction, that is, the length direction of the bed 1. The Z-axis head 5 is connected to the cantilever beam 4 by sliding along the Y-axis direction, that is, the front and rear direction of the bed 1. The laser head 15 is connected to the cantilever beam 4 by laser. The laser head mounting plate 21 is connected to the Z-axis machine head 5 by sliding up and down, and a lever 12 is fixedly connected to the bottom of the laser head mounting plate 21. The axis of the lever 12 is vertically distributed downward and parallel to the guide column 9. The lower end of the lever 12 is provided with a groove for matching with the upper end of the guide column 9. When the axis of the lever 12 and the guide column 9 coincide, the laser head mounting plate 21 slides vertically downward, driving the lever 12 to push the guide column 9 downward, so that the mechanical valve 10 is opened, and the guide rail brake 11 is released after supplying air pressure or oil pressure, so that the fixture seat 7 and the fixture crossbeam 3 can slide relatively. When the lever 12 moves upward and leaves the guide column 9, under the action of the return spring 20, the guide column 9 moves upward, the mechanical valve 10 changes direction, and the guide rail brake 11 is cut off and locked, so that the clamp seat 7 is clamped on the clamp beam 3. In addition, a servo motor 13 is fixedly connected to the laser head mounting plate 21, and a mounting seat 14 is fixedly connected to one end of the output shaft of the servo motor 13 for mounting and fixing the laser head 15. The axis of the output shaft of the servo motor 13 is distributed left and right in the horizontal direction. Driven by the servo motor 13, the laser head 15 rotates along the output shaft of the servo motor.

[0024] The X-direction positioning seat 8 is fixedly connected to the left end of the fixture beam 3, and is composed of a positioning frame 16, a guide cylinder 17, a positioning plate 18 and an optical ruler 19. The positioning frame 16 is fixedly connected to the top of the fixture beam 3, the cylinder body of the guide cylinder 17 is fixedly connected to the positioning frame 16, the piston rod of the guide cylinder 17 is distributed along the length direction of the fixture beam 3, and the right end of the piston rod 17 is fixedly connected to the positioning plate 18, the grating reading head part of the grating ruler 19 is fixedly connected to the positioning frame 16, and the grating part of the scale is fixedly connected to the positioning plate. In addition, when the piston rod of the guide cylinder 17 is extended or retracted, the grating ruler 19 can be used to independently position the piston rod of the guide cylinder 17, thereby obtaining the position of the profile in the X-axis direction.

[0025] In addition, the upper left side of the laser head mounting plate 21 is fixedly connected to the servo motor 13, the output shaft of the servo motor 13 is connected to the reducer 14, and the output shaft of the reducer 14 is connected to the driving pulley 24. The lower part of the laser head mounting plate 21 is fixedly connected to the mounting seat 22, and the mounting seat 22 is provided with a rotating shaft, and the axis of the rotating shaft is along the Figure 6 The driven pulley 25 is arranged on the right end of the shaft, and the laser head 15 is fixedly connected to the left end of the shaft. The driving pulley 24 and the driven pulley 25 are connected through a conveyor belt 23, and the servo motor 13 drives the laser head 15 to rotate.

[0026] The working principle of this device is as follows: according to the size information of the workpiece to be processed, the fixture seat 7 is first adjusted to the corresponding position through the Z-axis head 5, and the fixture beam 3 is also adjusted to the corresponding position. Then the workpiece is placed on the fixture seat 7 and the workpiece is clamped. The guide cylinder 17 on the X-direction positioning seat 8 extends to drive the positioning plate 18 to touch the workpiece. At this time, the position information of the workpiece in the X direction is measured by the optical ruler 19, so as to facilitate subsequent processing operations. The Z-axis head 5 drives the laser head 5 to rotate to 0°, -90° and +90° positions through the previously measured workpiece position, so as to perform marking processing on the upper surface, inner surface and outer surface of the workpiece. After the processing is completed, the fixture seat 7 releases the workpiece and unloads the material, thereby completing the marking operation of the workpiece.

[0027] The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements can be made without departing from the principle of the present invention. These improvements should also be regarded as the protection scope of the present invention.

Claims

1. A laser marking machine, characterized in that: It includes a bed, a fixture beam, a cantilever beam and a Z-axis machine head. The fixture beam is distributed along the X-axis direction of the bed, and the fixture beam is slidably connected to the bed along the Y-axis direction. A plurality of fixture seats are slidably connected to the fixture beam along the X-axis direction of the bed, and a guide rail brake is connected between the fixture seat and the fixture beam. The cantilever beam is slidably connected to the bed along the X-axis direction of the bed, and the Z-axis machine head is slidably connected to the cantilever beam along the Y-axis direction of the bed. A laser head located above the fixture seat is arranged on the Z-axis machine head, and the laser head is connected to the Z-axis machine head by sliding up and down along the Z-axis direction of the bed, and the laser head is rotatably connected to the Z-axis machine head parallel to the X-axis. In addition, a clamp for positioning the profile is also arranged at the end of the fixture beam. An X-direction positioning seat is provided on the fixture seat, a mechanical valve connected to the guide rail brake pressure supply pipeline is provided, a guide column is provided above the mechanical valve switch, the guide column is connected to the fixture seat for sliding up and down, a lever for driving the guide column to toggle the mechanical valve switch is provided on the Z-axis head, the lever is fixedly connected to the bottom of the Z-axis head and moves up and down with the laser head, the X-direction positioning seat is composed of a positioning frame, a positioning plate, a guide rail cylinder and a displacement sensor for detecting the displacement of the positioning plate, the positioning frame is fixedly connected to the top of the fixture beam, the guide rail cylinder is fixedly connected to the positioning bracket, the positioning plate is fixedly connected to the guide rail cylinder piston rod, and a reset spring is provided between the guide column and the mechanical valve switch.

2. The laser marking machine according to claim 1, characterized in that: The displacement sensor is a grating ruler.

3. The laser marking machine according to claim 1, characterized in that: The guide rail brake is a normally closed guide rail brake.

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