Shielding and positioning jig for laser etching

Abstract

The utility model discloses a shielding positioning jig for laser etching, which comprises a lower seat assembly provided with a positioning surface and used for positioning a workpiece, driving mechanisms respectively arranged on two sides of the lower seat assembly, and an upper seat assembly with two sides respectively connected with the corresponding driving mechanisms, and the positioning surface is provided with a profiling area matched with the workpiece in shape. The driving mechanism can drive the upper base assembly to move in a reciprocating mode in the direction close to or away from the profiling area, under driving of the driving mechanism, the upper base assembly can be attached to the lower base assembly so as to be used for clamping a workpiece, and a laser etching window is formed in the position, corresponding to the profiling area, of the upper base assembly. After the upper seat assembly and the lower seat assembly are matched to clamp a workpiece, the laser etching window is used for exposing a laser etching area of the workpiece, and the laser etching window is specially designed for a C piece needing a secondary anode and is beneficial to improving the machining efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of notebook component processing, and in particular relates to a shielding and positioning fixture for laser engraving. Background Art

[0002] When manufacturing notebook casing parts, the surface of materials such as aluminum and its alloys is usually anodized to form a dense oxide film on the surface of aluminum alloy components. The gloss of the metal surface can remain unchanged for a long time, and the corrosion resistance and mechanical strength are improved.

[0003] In the past, the anodizing process could only produce one color on the same part, which was too monotonous. Because the keyboard area is set in the C-part, the regional boundary is more obvious, so it has become the object of double-color anodizing process. In the process of double-color anodizing for C parts, before the keyboard area is subjected to secondary anodizing, the keyboard area that needs to be laser engraved to remove the anode layer will be exposed, and the non-laser engraved area needs to be shielded and protected. Therefore, it is very necessary to design a positioning fixture that can shield and protect the non-laser engraved area during laser engraving. Utility Model Content

[0004] Aiming at the technical problem in the prior art that the non-laser engraving area of ​​the C part before the secondary anode needs to be shielded and protected, while the laser engraving area needs to be exposed, the utility model provides a shielding and positioning fixture for laser engraving.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A shielding and positioning jig for laser engraving comprises a lower seat component having a positioning surface for positioning a workpiece, a driving mechanism respectively arranged on both sides of the lower seat component and an upper seat component respectively connected to the corresponding driving mechanism on both sides, the positioning surface is provided with a profiling area adapted to the shape of the workpiece, the driving mechanism can drive the upper seat component to reciprocate toward or away from the profiling area, under the drive of the driving mechanism, the upper seat component can be attached to the lower seat component for clamping the workpiece, the upper seat component is provided with a laser engraving window at the position corresponding to the profiling area, when the upper seat component cooperates with the lower seat component to clamp the workpiece, the laser engraving window is used to expose the laser engraving area of ​​the workpiece to the outside.

[0007] Furthermore, it also includes a guide assembly, which includes guide shafts arranged at each corner position of the lower seat assembly, and guide sleeves arranged at each corner position of the upper seat assembly, and the guide shafts are sleeved in the guide sleeves one by one.

[0008] Furthermore, the lower seat assembly includes a positioning platform whose top surface is defined as a positioning surface and a base plate detachably connected to the bottom surface of the positioning platform, the contour area is distributed on the surface of the positioning platform, and the guide axis is perpendicular to the base plate and is distributed one by one at each corner position of the base plate.

[0009] Furthermore, positioning pads are provided at each corner of the profiling area and are adjacent to the profiling area for positioning the workpiece.

[0010] Furthermore, the bottom plate is provided with a plurality of stepped long holes arranged at intervals along the length direction of the bottom plate, and the long holes are used for fixing to the laser engraving machine.

[0011] Furthermore, the upper seat assembly includes a cover plate capable of covering the positioning surface and a support plate detachably connected to the upper end of the cover plate, a laser engraving window penetrating the cover plate from the top surface to the bottom surface of the cover plate is provided on the cover plate, and a through opening penetrating the support plate is provided from the top surface to the bottom surface of the support plate, the position of the through opening corresponds to the position of the laser engraving window, and the cross-sectional area of ​​the through opening is larger than the cross-sectional area of ​​the laser engraving window; the guide sleeve is perpendicular to the support plate and is distributed one by one at each corner position of the support plate.

[0012] Furthermore, a plurality of first adjustment blocks are provided along the length direction of the cover plate, the upper part of the side wall of the first adjustment block is connected to the support plate with bolts, and the lower part is provided with adjustment holes screwed with the adjustment bolts, and the adjustment holes penetrate the first adjustment block longitudinally; a plurality of second adjustment blocks are provided along the width direction of the cover plate, the bottom surface of the second adjustment block is connected to the support plate with bolts, and the side wall is provided with adjustment holes screwed with the adjustment bolts, and the adjustment holes on the second adjustment block penetrate the second adjustment block horizontally.

[0013] Furthermore, the inner peripheral wall of the laser engraving window is an inclined side wall, and the cross-sectional area of ​​the inner peripheral wall gradually decreases from the top surface to the bottom surface of the inner peripheral wall.

[0014] Furthermore, positioning holes which can be detachably connected to the positioning surface are respectively opened on both sides of the laser engraving window.

[0015] Furthermore, all of the driving mechanisms include a first mounting plate connected to the lower seat assembly, a cylinder connected to one side of the first mounting plate, and a second mounting plate connected to the cylinder at one end and connected to the upper seat assembly at the other end. The top end of the cylinder is detachably connected to the second mounting plate, and the second mounting plate is driven by the cylinder to move linearly in the vertical direction, thereby driving the upper seat assembly to reciprocate in a direction close to or away from the contouring area.

[0016] In summary, the beneficial effects of the utility model are: first, it is specially designed for C parts that require secondary anodes, which helps to improve processing efficiency. Second, the drive mechanism drives the upper seat assembly away, and then places the workpiece on the positioning surface. After completing the initial positioning, the drive mechanism drives the cover plate in the upper seat assembly to clamp the workpiece for positioning, so as to facilitate subsequent processing. The clamping process has a high degree of automation, and the clamping steps are simple and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a shielding and positioning fixture for laser engraving provided by the utility model.

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure after the C part is clamped in the middle.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the lower seat assembly in the utility model.

[0020] Figure 4 yes Figure 3 Top view of the .

[0021] Figure 5 yes Figure 3 Bottom view of .

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the upper seat assembly in the utility model.

[0023] Figure 7 yes Figure 6 Top view of the .

[0024] Figure 8 yes Figure 6 Bottom view of .

[0025] In the figure, 100-lower seat assembly, 110-positioning platform, 111-profiling area, 112-positioning pad, 120-bottom plate, 121-long hole, 130-pin hole, 140-connecting hole, 200-upper seat assembly, 210-cover plate, 211-laser carved window, 212-positioning hole, 213-avoidance groove, 220-support plate, 221-through port, 222-screw hole, 300-driving mechanism, 310-first mounting plate, 320-cylinder, 330-second mounting plate, 400-guide assembly, 410-guide shaft, 420-guide sleeve, 500-first adjusting block, 510-adjusting hole, 600-second adjusting block, 700-part C. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with specific drawings.

[0027] See also Figure 1The utility model provides a shielding and positioning fixture for laser engraving, comprising a lower seat component 100 having a positioning surface for positioning a workpiece, a driving mechanism 300 respectively arranged on both sides of the lower seat component 100, and an upper seat component 200 respectively connected to the corresponding driving mechanism 300 on both sides. The positioning surface is provided with a profiling area 111 adapted to the shape of the workpiece, and the driving mechanism 300 can drive the upper seat component 200 to reciprocate toward or away from the profiling area 111. Under the drive of the driving mechanism 300, the upper seat component 200 can be attached to the lower seat component 100 for clamping the workpiece. The upper seat component 200 is provided with a laser engraving window 211 at the position corresponding to the profiling area 111, please refer to Figure 2 When the upper seat assembly 200 cooperates with the lower seat assembly 100 to clamp the workpiece, the laser engraving window 211 is used to expose the laser engraving area of ​​the C part 700 to the outside. Before secondary anodization of part C 700, the upper seat assembly 200 is driven away from the lower seat assembly 100 by the driving mechanism 300 to expose the positioning surface. Placing part C 700 on the positioning surface can preliminarily position the workpiece. The shape of the keyboard area of ​​part C 700 matches the profiling area 111. The driving mechanism 300 drives the upper seat assembly 200 to move toward the lower seat assembly 100 until the upper seat assembly 200 and the lower seat assembly 100 cooperate to clamp and position and lock part C 700. The laser engraving window 211 on the upper seat assembly 200 can expose the keyboard area of ​​part C 700 for anodization by the laser engraving machine, and the non-keyboard area adjacent to the keyboard area is the non-laser engraving area that does not require two-color anodization. After positioning the workpiece, the non-laser engraving area is shielded and protected by the upper seat assembly 200, which is specially designed for two-color anodization of part C 700, with firm positioning and convenient clamping operation.

[0028] See also Figure 3 The lower seat assembly 100 includes a positioning platform 110 whose top surface is defined as a positioning surface and a base plate 120 detachably connected to the bottom surface of the positioning platform 110. The profiling area 111 is distributed on the surface of the positioning platform 110. The positioning platform 110 and the base plate 120 are both provided with a plurality of pin holes 130 and connecting holes 140. Before locking the positioning platform 110 and the base plate 120, positioning is performed by inserting a positioning pin into the pin hole 130, and then bolts are screwed into the connecting holes 140 to firmly connect the positioning platform 110 and the base plate 120.

[0029] See also Figure 4 A positioning pad 112 is provided at each corner of the profiling area 111 and is adjacent to the profiling area 111 for positioning the workpiece. When the workpiece is initially positioned on the positioning surface, the positioning pad 112 is convex and corresponds to the position of the perforation on the workpiece one by one. After the workpiece is placed on the positioning surface, the positioning pad 112 passes through the corresponding perforation of the workpiece one by one to position the workpiece.

[0030] See also Figure 5 The bottom plate 120 is provided with a plurality of stepped long holes 121 arranged at intervals along the length direction of the bottom plate 120. The stepped long holes 121 are convenient for assembling bolts from the long holes 121. The long holes 121 are used for fixing with the laser engraving machine. After assembling bolts in the long holes 121, the bottom plate 120 can be fixed to the laser engraving machine to avoid the location of the jig. Moreover, the design of multiple long holes 121 is convenient for adjusting the fixing position, and can be used with more laser engraving machines.

[0031] See also Figure 6 The upper seat assembly 200 includes a cover plate 210 that can cover the positioning surface and a support plate 220 that is detachably connected to the upper end of the cover plate 210. The cover plate 210 is provided with a laser engraving window 211 that passes through the cover plate 210 from the top surface to the bottom surface of the cover plate 210. A through hole 221 that passes through the support plate 220 is opened from the top surface to the bottom surface of the support plate 220. The position of the through hole 221 corresponds to the position of the laser engraving window 211, and the cross-sectional area of ​​the through hole 221 is larger than the cross-sectional area of ​​the laser engraving window 211. The through hole 221 on the support plate 220 can fully expose the laser engraving window 211 to avoid interference with laser engraving, and the support plate 220 is provided with a plurality of screw holes 222 for assembling bolts to connect and fix the support plate 220 to the cover plate 210.

[0032] See also Figure 7 The cover plate 210 is provided with a plurality of positioning holes 212, which are respectively located on both sides of the laser engraving window 211. Before the cover plate 210 is connected and locked with the support plate 220, the cover plate 210 needs to be fitted with the positioning surface and positioned using the positioning holes 212 to ensure that the profiling area 111 can be exposed from the laser engraving window 211. Figure 8 The surface of the cover plate 210 that contacts the positioning surface is provided with a plurality of avoidance grooves 213 corresponding to the avoidance positioning pads 112 .

[0033] A plurality of first adjustment blocks 500 are provided along the length direction of the cover plate 210. The upper part of the side wall of the first adjustment block 500 is connected to the support plate 220 by bolts, and the lower part is provided with an adjustment hole 510 screwed with an adjustment bolt (not shown in the figure). The adjustment hole 510 longitudinally penetrates the first adjustment block 500. After the adjustment bolt is assembled in the adjustment hole 510 on the first adjustment block 500, one end of the adjustment bolt can abut against the side wall of the cover plate 210, so as to fine-tune the position of the cover plate 210 in the width direction of the cover plate 210. A plurality of second adjustment blocks 600 are provided along the width direction of the cover plate 210. The bottom surface of the second adjustment block 600 is connected to the support plate 220 by bolts, and the side wall is provided with an adjustment hole 510 screwed with the adjustment bolt. The adjustment hole 510 located on the second adjustment block 600 transversely penetrates the second adjustment block 600. After the adjustment bolt is installed in the adjustment hole 510 on the second adjustment block 600 , one end thereof will abut against the side wall of the cover plate 210 , so as to fine-tune the position of the cover plate 210 in the length direction of the cover plate 210 .

[0034] The inner wall of the laser engraving window 211 is an inclined side wall, and the cross-sectional area of ​​the inner wall gradually decreases from the top surface to the bottom surface of the inner wall. The laser engraving window 211 is an inclined inner wall, which can expose the profiling area 111 as much as possible and avoid interference with the laser engraving light.

[0035] All the driving mechanisms 300 include a first mounting plate 310 connected to the lower seat assembly 100, a cylinder 320 connected to one side of the first mounting plate 310, and a second mounting plate 330 connected to the cylinder 320 at one end and connected to the upper seat assembly 200 at the other end. The top end of the cylinder 320 is detachably connected to the second mounting plate 330, and the cylinder 320 drives the second mounting plate 330 to move linearly in the vertical direction, thereby driving the upper seat assembly 200 to reciprocate in the direction of approaching or moving away from the profiling area 111. After the top end of the cylinder 320 is connected to the second mounting plate 330, the cylinder 320 drives the second mounting plate 330 to reciprocate in the vertical direction, so that the clamping of the workpiece is convenient and quick.

[0036] The positioning fixture also includes a guide assembly 400, which includes a guide shaft 410 provided at each corner position of the lower seat assembly 100, and a guide sleeve 420 provided at each corner position of the upper seat assembly 200. The guide shaft 410 is perpendicular to the bottom plate 120 and is distributed one by one at each corner position of the bottom plate 120, and the guide shaft 410 is sleeved in the guide sleeve 420 one by one. The guide sleeve 420 is perpendicular to the support plate 220 and is distributed one by one at each corner position of the support plate 220. During the reciprocating movement of the upper seat assembly 200, the guidance in the moving direction is carried out by the cooperation of the guide shaft 410 and the guide sleeve 420.

[0037] The working process of this positioning fixture is as follows: the cylinder 320 drives the cover plate 210 to move away from the positioning platform 110 first, and the C part 700 that requires a secondary anode is placed on the placement table, and the C part 700 is positioned by passing the positioning pad 112 through the through hole of the workpiece. The cylinder 320 drives the second mounting plate 330 to drive the cover plate 210 to press down until the C part 700 is clamped and positioned. The keyboard area of ​​the C part 700 that requires a secondary anode is exposed from the laser engraving window 211 for the laser engraving machine to process in the laser engraving window 211.

[0038] This positioning fixture: 1. It is specially designed for C-piece 700 that requires a secondary anode, which helps to improve processing efficiency. 2. The drive mechanism 300 drives the upper seat assembly 200 away, and then places the workpiece on the positioning surface. After completing the initial positioning, the drive mechanism 300 drives the cover plate 210 in the upper seat assembly 200 to clamp the workpiece for positioning, so as to facilitate subsequent processing. The clamping process has a high degree of automation, and the clamping steps are simple and fast.

[0039] The above are only implementation methods of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure made using the contents of the specification and drawings of the present utility model, directly or indirectly used in other related technical fields, are also within the patent protection scope of the present utility model.

Claims

1. A masking and positioning jig for laser engraving, characterized in that: The invention comprises a lower seat component having a positioning surface for positioning a workpiece, driving mechanisms respectively arranged on both sides of the lower seat component and an upper seat component respectively connected to the corresponding driving mechanisms on both sides, the positioning surface is provided with a profiling area adapted to the shape of the workpiece, the driving mechanism can drive the upper seat component to reciprocate toward or away from the profiling area, and under the drive of the driving mechanism, the upper seat component can be attached to the lower seat component for clamping the workpiece, and a laser engraving window is provided on the upper seat component at a position corresponding to the profiling area, and when the upper seat component cooperates with the lower seat component to clamp the workpiece, the laser engraving window is used to expose the laser engraving area of ​​the workpiece to the outside.

2. The shielding and positioning jig for laser engraving according to claim 1, characterized in that: It also includes a guide assembly, which includes guide shafts arranged at each corner position of the lower seat assembly and guide sleeves arranged at each corner position of the upper seat assembly, and the guide shafts are sleeved in the guide sleeves in a one-to-one correspondence.

3. The shielding and positioning jig for laser engraving according to claim 2, characterized in that: The lower seat assembly includes a positioning platform whose top surface is defined as a positioning surface and a base plate detachably connected to the bottom surface of the positioning platform, the contour area is distributed on the surface of the positioning platform, and the guide axis is perpendicular to the base plate and distributed one by one at each corner position of the base plate.

4. The shielding and positioning jig for laser engraving according to claim 3, characterized in that: Positioning pads are provided at each corner of the profiling area and are adjacent to the profiling area for positioning the workpiece.

5. The shielding and positioning jig for laser engraving according to claim 3, characterized in that: The bottom plate is provided with a plurality of stepped long strip holes which are arranged at intervals along the length direction of the bottom plate, and the long strip holes are used for fixing with the laser engraving machine.

6. The shielding and positioning jig for laser engraving according to claim 2, characterized in that: The upper seat assembly includes a cover plate that can cover the positioning surface and a support plate detachably connected to the upper end of the cover plate, a laser engraving window is provided on the cover plate and passes through the cover plate from the top surface to the bottom surface, and a through opening is provided along the top surface to the bottom surface of the support plate and passes through the support plate, the position of the through opening corresponds to the position of the laser engraving window, and the cross-sectional area of ​​the through opening is larger than the cross-sectional area of ​​the laser engraving window; the guide sleeve is perpendicular to the support plate and is distributed one by one at each corner position of the support plate.

7. The shielding and positioning jig for laser engraving according to claim 6, characterized in that: A plurality of first adjustment blocks are provided along the length direction of the cover plate, the upper part of the side wall of the first adjustment block is connected to the support plate with bolts, and the lower part is provided with adjustment holes screwed with the adjustment bolts, and the adjustment holes penetrate the first adjustment block longitudinally; a plurality of second adjustment blocks are provided along the width direction of the cover plate, the bottom surface of the second adjustment block is connected to the support plate with bolts, and the side wall is provided with adjustment holes screwed with the adjustment bolts, and the adjustment holes on the second adjustment block penetrate the second adjustment block horizontally.

8. The shielding and positioning jig for laser engraving according to claim 1, characterized in that: The inner peripheral wall of the laser engraving window is an inclined side wall, and the cross-sectional area of ​​the inner peripheral wall gradually decreases from the top surface to the bottom surface of the inner peripheral wall.

9. The shielding and positioning jig for laser engraving according to claim 8, characterized in that: Positioning holes which can be detachably connected to the positioning surface are respectively provided on both sides of the laser engraving window.

10. A masking and positioning jig for laser engraving according to any one of claims 1 to 9, characterized in that: All of the driving mechanisms include a first mounting plate connected to the lower seat assembly, a cylinder connected to one side of the first mounting plate, and a second mounting plate connected to the cylinder at one end and connected to the upper seat assembly at the other end. The top end of the cylinder is detachably connected to the second mounting plate, and the second mounting plate is driven by the cylinder to move linearly in the vertical direction, thereby driving the upper seat assembly to reciprocate in a direction close to or away from the profiling area.

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