CN113275757A

CN113275757A - Fixed-focus laser marking floating mechanism

Info

Publication number: CN113275757A
Application number: CN202110608387.9A
Authority: CN
Inventors: 陈云; 陆炜; 李玉; 刘玉; 王中; 高飞
Original assignee: Weben Smart Manufacturing System Shanghai Co ltd
Current assignee: Weben Smart Manufacturing System Shanghai Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-08-20
Anticipated expiration: 2041-06-01
Also published as: CN113275757B

Abstract

The invention discloses a fixed-focus laser marking floating mechanism, which is used for marking a workpiece with larger Z-axis positioning reference deviation or various workpieces by using a fixed-focus laser. The invention has the advantages and beneficial effects that: the zooming laser marker is high in cost, the position deviation requirement of a workpiece marking surface from a laser lens is strict due to the focal length of the fixed-focus laser marker, when the Z-axis positioning reference deviation of a product is large or the heights of the marking surfaces of various workpieces are inconsistent, the fixed-focus laser marker with the lower price can be saved by using the structure, and the stability and the compatibility of marking are improved.

Description

Fixed-focus laser marking floating mechanism

Technical Field

The invention relates to the field of machining, in particular to a fixed-focus laser marking floating mechanism.

Background

With the progress of society, the competition of the automobile industry is more and more intense, in order to improve the automation level of a production line and reduce the labor cost, on the premise that the requirements on the process and the automation are met, the workpieces are usually marked automatically by means of a laser marker, in the workpieces needing marking of the automobile, the positioning surfaces of some workpieces (such as steering knuckles, front shafts and the like) for marking are casting blank surfaces, so that the workpieces of the same type are caused, the height difference of the marking planes after positioning is large, and the requirement of the marking qualification rate of the workpieces cannot be met by selecting a fixed-focus laser marker with lower price. If the marker with the automatic zooming function is selected, the cost of the marker can be increased, and the qualification rate of the final marker can be influenced by the accuracy rate of the automatic zooming function. Give up the laser marker of fixed focus and choose to zoom laser standard device for use, can lead to both increasing the cost and reducing the qualification rate of marking.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the fixed-focus laser marking floating mechanism for solving the problems. To achieve this object, the present invention provides the following solutions:

a fixed-focus laser marking floating mechanism comprises a connecting mounting plate, a cylinder A and a cylinder B, wherein the connecting mounting plate is connected with a fixed support through 8 screws during assembly, a guide rail, a support and the cylinder mounting plate are fixedly arranged on the connecting mounting plate, a slider A and a slider B are arranged on the guide rail, a cylinder support plate is arranged on the slider A, a connecting plate is arranged on the slider B, the cylinder A is symmetrically arranged in two, one end of the cylinder A is fixedly connected with the two sides of the cylinder support plate, the other ends of the two cylinder A are fixedly connected with the cylinder mounting plate and the mounting plate respectively and are provided with gaskets, one end of the cylinder B is fixedly connected on the connecting plate, the other end of the cylinder B is fixedly connected with the mounting plate, an inductor is arranged on the support and used for inducing the moving position of the connecting plate, and the head of the cylinder B is fixedly connected with a pressure head seat through bolts, the pressure head seat is fixedly connected with a conical surface positioning seat, a hard gasket and two upper spring centering blocks, a floating shaft is movably arranged between the conical surface positioning seat and the hard gasket, the floating shaft is sequentially sleeved with a spring, a linear bearing, an elastic block, a cushion block, an elastic block and a supporting block, and is propped against a groove of the floating shaft through a bolt, so that the supporting block is fixedly connected with the floating shaft in the Z-axis direction, the linear bearing is fixedly installed and connected with an installation frame, the installation frame is fixedly provided with two lower spring centering blocks, 4 springs are sleeved between the four upper spring centering blocks and the four lower spring centering blocks, the installation frame is also fixedly connected with an installation plate, the installation frame is driven to move by movably contacting the installation plate through the supporting block, the installation plate is fixedly connected below the installation frame, a positioning plate is fixedly connected below the installation plate, and the positioning plate is clamped with the groove on the guide rod, thereby make guide bar and mounting panel fixed in the Z axle direction, the guide bar other end also is the recess that blocks the guide bar through the locating plate with mounting panel fixed connection to make guide bar and mounting panel fixed in the Z axle direction fixedly connected with briquetting and inductor on the mounting panel are used for detecting whether the briquetting laminates the work piece and beats the mark face, the mounting bracket carries out fixed connection through bolt, nut and guide bar and connecting plate, fixedly connected with laser marking machine above the connecting plate laser marking machine camera lens department fixed mounting prevents the laser cover, prevent that fixed connection sweeps a yard rifle fixed plate on the laser cover, sweep a yard rifle on the yard rifle fixed plate fixed connection, prevent that the laser cover can connect the dust catcher outward and be used for absorbing the granule such as the dust of beating the mark in-process production.

Furthermore, marking of three places of the same product can be realized through the movement of the two cylinders, and marking of three different positions of different products can also be realized.

Furthermore, through the conical matching of the floating shaft and the conical surface positioning seat, the action of the spring and the spring force and the detection of the three sensors, the floating of the marking device is guaranteed, whether the marking machine moves to a proper position or not is judged, and the marking can be carried out.

Further, through adjusting bolt and nut for the distance changes between connecting plate and the mounting bracket, can realize beating the regulation of mark face to fixed focus laser instrument distance, and guarantee the reliable and stable of adjusting the in-process through the guide bar.

Furthermore, a code scanning gun is installed on the marking machine through a connecting piece, so that whether the code is qualified or not is judged by immediately scanning the code after the code is printed.

Compared with the prior art, the invention has the following advantages and beneficial effects:

generally, the zooming laser marker is high in cost, the position deviation requirement of a workpiece marking surface from a laser lens is strict due to the focal length of the fixed-focus laser marker, when the Z-axis positioning reference deviation of a product is large or the heights of the marking surfaces of various workpieces are inconsistent, the fixed-focus laser marker with the lower price can be saved by using the structure, the stability and compatibility of marking are improved, and the marking qualification rate is improved.

Drawings

FIG. 1 is a schematic three-dimensional structure diagram of a fixed-focus laser marking floating mechanism according to the present invention;

FIG. 2 is a front view of a fixed focus laser marking float mechanism of the present invention;

FIG. 3 is a right side view of a fixed focus laser marking float mechanism of the present invention;

FIG. 4 is a left side view of a fixed focus laser marking float mechanism of the present invention;

FIG. 5 is the view A-A of FIG. 2 of a fixed focus laser marking float mechanism of the present invention;

in the figure: 1. connecting mounting plate, 2, mounting plate, 3, bracket, 4, gasket, 5, cylinder support plate, 6, connecting plate, 7, cylinder mounting plate, 8, elastic block, 9, cushion block, 10, elastic block, 11, connecting plate, 12, guide rod, 13, mounting plate, 14, press head seat, 15, cone positioning seat, 16, floating shaft, 17, hard gasket, 18, mounting frame, 19, shock shield, 20, code scanning gun fixing plate, 21, support block, 22, mounting plate, 23.1, upper spring centering block, 23.2, lower spring centering block, 24, guide rod, 25, press block, 26, mounting plate, 27, positioning plate, 28, laser marking machine, 29, code scanning gun, 30, linear bearing, 31, spring, 32, spring, 33, cylinder B, 34, inductor, 35, guide rail, 36, cylinder A, 37, slider A, 38, slider B, 39, bolt, 41, screw, 42, 41, 42, Bolt, 43, nut.

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.

Referring to fig. 1 to 5, the floating mechanism for fixed-focus laser marking according to the technical scheme provided by the invention is a floating mechanism for marking a workpiece with a large Z-axis positioning reference deviation or various workpieces by using a fixed-focus laser, the top of the floating mechanism comprises a connecting mounting plate 1, a cylinder a36 and a cylinder B33, during assembly, the connecting mounting plate 1 is connected with a fixed support through 8 screws 41, a guide rail 35, a support 3 and a cylinder mounting plate 7 are fixedly arranged on the connecting mounting plate 1, a slider a and a slider B are arranged on the guide rail 35, a cylinder support plate 5 is arranged on the slider a, a connecting plate 6 is arranged on the slider B, two cylinders a36 are symmetrically arranged, one end of each cylinder a36 is fixedly connected with two sides of the cylinder support plate 5, the other ends of the two cylinders a36 are respectively fixedly connected with the cylinder mounting plate 7 and the mounting plate 2, and are provided with a gasket 4, one end of the air cylinder B33 is fixedly connected to the connecting plate 6, the other end of the air cylinder B33 is fixedly connected to the mounting plate 2, the bracket 3 is provided with an inductor 34 for inducing the moving position of the connecting plate 6, the head of the air cylinder B33 is fixedly connected to the press head seat 14 through a bolt, the press head seat 14 is fixedly connected to a conical surface positioning seat 15, a hard gasket 17 and two upper spring centering blocks 23.1, a floating shaft 16 is movably arranged between the conical surface positioning seat 15 and the hard gasket 17, the floating shaft 16 is sequentially sleeved with a spring 31, a linear bearing 30, an elastic block 8, a cushion block 9, an elastic block 10 and a supporting block 21, and abuts against the groove of the floating shaft 16 through a bolt 39, so that the supporting block 21 is fixedly connected with the floating shaft 16 in the Z-axis direction, the linear bearing 30 is fixedly installed to the mounting bracket 18, the mounting bracket 18 is fixedly installed with two lower spring centering blocks 23.2, four upper spring centering blocks 23.1 and lower spring centering blocks 23.2 are sleeved with 4 springs 32, the mounting frame 18 is further provided with a fixed connection mounting plate 22 which is movably contacted with the mounting plate 22 through a supporting block 21 so as to drive the mounting frame 18 to move, the mounting frame 18 is fixedly connected with the mounting plate 13 below, the mounting plate 13 is fixedly connected with a positioning plate 27 below the mounting plate 27, the positioning plate 27 is used for clamping a groove on the guide rod 24 so as to fix the guide rod 24 and the mounting plate 13 in the Z-axis direction, the other end of the guide rod 24 is also used for clamping a groove of the guide rod 24 through the positioning plate 27 fixedly connected with the mounting plate 26 so as to fix the guide rod 24 and the mounting plate 26 in the Z-axis direction, the mounting plate 26 is fixedly connected with a pressing block 25 and a sensor 34, the sensor 34 is used for detecting whether the pressing block 25 is attached to a workpiece surface, and the mounting frame 18 is provided with a marking surface through bolts 42, Nut 43 and guide bar 12 carry out fixed connection with connecting plate 11, fixedly connected with laser marking machine 28 above the connecting plate laser marking machine 28 camera lens department fixed mounting prevents laser cover 19, prevent that fixed connection sweeps sign indicating number rifle fixed plate 20 on the laser cover 19, sweep on the sign indicating number rifle fixed plate 20 fixed connection and sweep sign indicating number rifle 29, prevent can the outer dust catcher that allies oneself with on the laser cover 19 and be used for absorbing the granule such as the dust that the mark in-process produced.

In the scheme, marking of three places of the same product can be realized through the movement of the two air cylinders 36, and marking of three different positions of different products can also be realized.

In the scheme, the floating shaft 16 is matched with the conical surface positioning seat 15 in a conical manner, the

springs

31 and 32 act on the springs, and the three sensors 34 are used for detecting, so that the floating of the marking device is guaranteed, whether the marking machine moves to a proper position or not is judged, and the marking can be carried out. Particularly, guarantee that the tight shot laser keeps centering state when not marking, and when cylinder 33] moves down, the work piece face that can mark as required is angle regulation by oneself and stabilize the laser instrument camera lens and to mark the distance of face for laser marking light can keep perpendicular to mark the face always, thereby ensures the definition of carving characters.

In the above scheme, the distance between the connecting plate 11 and the mounting frame 18 is changed by adjusting the bolt 42 and the nut 43, so that the distance between the marking surface and the fixed-focus laser can be adjusted, and the stability and reliability in the adjusting process are ensured by the guide rod 12. The code scanning gun 29 is installed on the marking machine 28 through a connecting piece, so that codes are scanned immediately after the codes are printed, and whether the codes are qualified or not is judged.

Because the focus of the fixed focus laser of the same model may have errors, the distance from the marking surface to the fixed focus laser can be adjusted through the adjusting bolt 42, so that when the fixed focus laser is damaged, the fixed focus laser needs to be replaced, and the distance from the lens to the marking surface can still be conveniently adjusted.

To sum up, daily production, the position deviation requirement of work piece marking face apart from laser lens is comparatively strict, and when product Z axle location benchmark deviation is great or the mark face height of many varieties work piece was inconsistent, use this technical scheme's tight shot laser marking relocation mechanism, can practice thrift the lower tight shot laser marker of cost use price to the stability and the compatibility of beating have been increased.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a focus laser marking relocation mechanism, the top is including connecting mounting panel (1), cylinder A (36), cylinder B (33), its characterized in that: during assembly, connecting mounting panel (1) is connected with the fixed bolster through 8 screws (41), the fixed guide rail (35), support (3) and cylinder mounting panel (7) of being equipped with on connecting mounting panel (1), install slider A and slider B on guide rail (35), install cylinder backup pad (5) on the slider A, install connecting plate (6) on the slider B, cylinder A (36) symmetry sets up two, and cylinder A (36) one end all with the both sides fixed connection of cylinder backup pad (5), the other end of two cylinder A (36) respectively with cylinder mounting panel (7) and mounting panel (2) fixed connection, and be furnished with gasket (4), cylinder B (33) one end fixed connection is on connecting plate (6), is equipped with on the other end and mounting panel (2) fixed connection, support (3) inductor (34), the device is used for sensing the moving position of a connecting plate (6), the head of the air cylinder B (33) is fixedly connected with a press head seat (14) through a bolt, a conical surface positioning seat (15), a hard gasket (17) and two upper spring centering blocks (23.1) are fixedly connected on the press head seat (14), a floating shaft (16) is movably arranged between the conical surface positioning seat (15) and the hard gasket (17), a spring (31), a linear bearing (30), an elastic block (8), a cushion block (9), an elastic block (10) and a supporting block (21) are sequentially sleeved on the floating shaft (16), and a groove of the floating shaft (16) is propped through a bolt (39), so that the supporting block (21) and the floating shaft (16) are fixedly connected in the Z-axis direction, the linear bearing (30) is fixedly installed and connected with an installation frame (18), and two lower spring centering blocks (23.2) are fixedly installed on the installation frame (18), 4 springs (32) are sleeved between the four upper spring centering blocks (23.1) and the lower spring centering blocks (23.2), a fixed connection mounting plate (22) is further arranged on the mounting frame (18), the mounting frame (18) is movably contacted with the mounting plate (22) through a supporting block (21) so as to drive the mounting frame (18) to move, a mounting plate (13) is fixedly connected below the mounting frame (18), a positioning plate (27) is fixedly connected below the mounting plate (13), the positioning plate (27) clamps a groove on the guide rod (24) so as to fix the guide rod (24) and the mounting plate (13) in the Z-axis direction, the other end of the guide rod (24) also clamps the groove of the guide rod (24) through the positioning plate (27) fixedly connected with the mounting plate (26), so that the guide rod (24) and the mounting plate (26) are fixed in the Z-axis direction, a pressing block (25) and an inductor (34) are fixedly connected on the mounting plate (26), be used for detecting briquetting (25) through inductor (34) and whether laminate work piece and mark the face, mounting bracket (18) carry out fixed connection through bolt (42), nut (43) and guide bar (12) and connecting plate (11), fixedly connected with laser marking machine (28) above the connecting plate laser marking machine (28) camera lens department fixed mounting prevents laser cover (19), prevent that fixed connection sweeps sign indicating number rifle fixed plate (20) on laser cover (19), sweep on sign indicating number rifle fixed plate (20) fixed connection and sweep sign indicating number rifle (29), prevent on laser cover (19) can the outer dust catcher be used for absorbing the granule such as dust of marking the production of in-process.

2. The floating mechanism for fixed-focus laser marking according to claim 1, characterized in that: the marking of three places of the same product can be realized through the movement of the two air cylinders (36), and the marking of three different positions of different products can also be realized.

3. The floating mechanism for fixed-focus laser marking according to claim 1, characterized in that: through the conical matching of the floating shaft (16) and the conical surface positioning seat (15), the action of the elastic force of the spring (31) and the spring (32) and the detection of the three sensors (34), the floating of the marking device is ensured, whether the marking machine moves to a proper position or not is judged, and the marking can be carried out.

4. The floating mechanism for fixed-focus laser marking according to claim 1, characterized in that: through adjusting bolt (42) and nut (43) for the distance changes between connecting plate (11) and mounting bracket (18), can realize the regulation of marking face to the fixed focus laser distance, and guarantee the reliable and stable in the adjustment process through guide rod (12).

5. The floating mechanism for fixed-focus laser marking according to claim 1, characterized in that: the code scanning gun (29) is arranged on the marking machine (28) through a connecting piece, so that the code is scanned immediately after the code is printed to judge whether the code is qualified or not.