Workpiece positioning mechanism for laser etching equipment

Abstract

The workpiece positioning mechanism for the laser etching equipment comprises a workbench, a base plate is arranged on the workbench, a tool plate is detachably connected to the base plate through a connecting assembly, a positioning assembly is arranged on the base plate, and the positioning assembly comprises a positioning backup plate arranged on the surface of the base plate; the end, away from the positioning backup plate, of the tool plate is in threaded connection with a positioning bolt, the end face of the tool plate abuts against the surface of the positioning backup plate, the end, extending out of the tool plate, of the positioning bolt abuts against the outer surface of the workbench, the positioning assembly provides precise positioning for workers in the positioning plate installation process, and the probability of position deviation generated when the positioning plate is installed is reduced. The laser etching equipment has the effect of improving the machining quality of the laser etching equipment.

Description

Technical Field

[0001] This application relates to the field of laser engraving equipment processing technology, and in particular to a workpiece positioning mechanism for laser engraving equipment. Background Technology

[0002] Laser engraving, also known as laser carving or laser marking, is a surface treatment process that uses optical principles. When laser engraving a workpiece, in order to avoid displacement of the workpiece during the laser engraving process, laser engraving fixtures are usually needed to fix the workpiece to be processed.

[0003] Existing laser engraving fixtures are usually only suitable for one type of workpiece. When the type of workpiece to be processed changes, the worker needs to remove the original laser engraving fixture from the worktable and then install the new fixture on the worktable.

[0004] However, in the current installation process, the positioning of the tooling plates is based solely on the experience of the workers. It is difficult for the workers to guarantee the accuracy of the installation position of each tooling plate. When there is a deviation between the relative position of the tooling plate and the laser engraving equipment, the laser beam generated by the laser engraving cannot accurately act on the predetermined position of the workpiece, which will cause quality problems such as offset or blurring of the laser engraved pattern or mark, thereby reducing the processing quality of the workpiece and having obvious deficiencies. Utility Model Content

[0005] In order to improve the processing quality of laser engraving equipment, this application provides a workpiece positioning mechanism for laser engraving equipment.

[0006] The technical solution provided in this application for a workpiece positioning mechanism for laser engraving equipment is as follows:

[0007] A workpiece positioning mechanism for a laser engraving device includes a worktable, a base plate disposed on the worktable, a fixture plate detachably connected to the base plate via a connecting assembly, a positioning assembly disposed on the base plate, the positioning assembly including a positioning backing plate disposed on the surface of the base plate, a positioning bolt threadedly connected to the end of the fixture plate away from the positioning backing plate, when the fixture plate is connected to the base plate via the connecting assembly, the end face of the fixture plate abuts against the surface of the positioning backing plate, and the end of the positioning bolt extending out of the fixture plate abuts against the outer surface of the worktable.

[0008] By adopting the above technical solution, when the type of workpiece to be laser-engraved changes, the worker first removes the fixture plate from the base plate using the connecting assembly. Then, the fixture plate that matches the workpiece to be laser-engraved is placed on the surface of the base plate and positioned. During positioning, the worker pushes the fixture plate until it is completely against the end face of the positioning plate, while ensuring that the positioning bolts are against the outer surface of the worktable. After the fixture plate is positioned, the worker fixes the new fixture plate again using the connecting assembly. The positioning assembly provides precise positioning during the worker's installation of the positioning plate, reducing the probability of positional deviation during installation, thereby improving the processing quality of the laser engraving equipment.

[0009] Optionally, the substrate has a rectangular array of multiple threaded holes, and the connecting assembly includes multiple connecting bolts, which pass through the tooling plate and are threaded into the threaded holes.

[0010] By adopting the above technical solution, when disassembling the old tooling plate, the worker will unscrew the connecting bolts out of the threaded holes and remove them from the tooling plate; after the new tooling plate is positioned, the worker will insert the connecting bolts through the positioning plate and screw them into the threaded holes. This setup enables the tooling plate to be quickly installed on the substrate.

[0011] Optionally, the connecting assembly includes fixed posts disposed on opposite sides of the tooling plate. The base plate has fixed grooves corresponding to the two fixed posts. Each fixed groove has a sliding groove on its inner sidewall. Each sliding groove has a snap-fit ​​block slidably connected to it. The outer surface of the fixed post has a snap-fit ​​groove that engages with the snap-fit ​​block. A clamping spring is sleeved on the outer surface of the snap-fit ​​block. One end of the clamping spring is disposed on the inner sidewall of the sliding groove, and the other end is disposed on the outer surface of the snap-fit ​​block. In its natural state, the snap-fit ​​block is snapped into the snap-fit ​​groove. The snap-fit ​​block has a guide arc surface that is inclined from top to bottom along a direction close to the axis of the fixed groove.

[0012] By adopting the above technical solution, when installing a new tooling plate, the worker inserts the fixing post into the fixing groove. During the descent of the fixing post, the fixing post pushes the locking block away from the locking groove through the guide ramp. At this time, the clamping spring is in a compressed state. When the fixing post descends to the point where the locking groove and the locking block are directly opposite each other, the pressure on the clamping spring disappears, and the clamping reset pushes the locking block to engage in the locking groove. The fixing post is fixed in the fixing groove through the engaging action of the locking block and the locking groove, thereby fixing the tooling plate. With this setting, the worker only needs to insert the fixing post into the fixing groove to achieve quick installation of the tooling plate, which improves the convenience of the worker's operation.

[0013] Optionally, the substrate is provided with an unlocking component corresponding to each of the two latching blocks. The unlocking component includes an unlocking rod. The substrate has an unlocking groove that slides with the unlocking rod in the vertical direction. The unlocking groove is connected to the sliding groove. The end of the unlocking rod is provided with a guide wedge. The guide wedge is inclined from bottom to top along the direction from the unlocking groove to the fixing groove. The end of the unlocking rod is slidably connected to the inclined direction of the guide wedge. The end of the unlocking rod is provided with a pull ring.

[0014] By adopting the above technical solution, when it is necessary to disassemble the tooling plate, the worker first hooks the pull ring and pulls the two unlocking rods upward. The unlocking rods drive the guide block to move upward. Since the movement direction of the locking block is restricted within the sliding groove, the guide block moves upward, causing the locking block to move away from the fixed groove. When the locking block disengages from the locking groove, the worker pulls the tooling plate upward to detach it from the substrate, thereby realizing the disassembly of the tooling plate. The setting of the unlocking component enables the tooling plate to be quickly separated from the substrate surface without the need for the worker to disassemble multiple connecting bolts in sequence, thus improving the convenience of the worker's operation.

[0015] Optionally, the guide block has a limiting groove along the inclined direction, and the end of the snap-fit ​​block is provided with a limiting block that slides in cooperation with the limiting groove.

[0016] By adopting the above technical solution, under the guidance and limitation of the limiting groove and the limiting block, the locking block can only move along the tilt direction of the guide block, which reduces the possibility of the locking block getting stuck during the unlocking process and ensures the smooth progress of the unlocking process.

[0017] Optionally, a guide ring is sleeved on the outer surface of the unlocking rod, and an annular groove is formed on the inner side wall of the unlocking groove to slide with the guide ring. A reset spring is sleeved on the outer surface of the unlocking rod, with one end of the reset spring disposed on the bottom wall of the annular groove and the other end disposed on the guide ring. In the natural state of the reset spring, the limiting block is disposed at the end of the limiting groove away from the unlocking rod, and the snap-fit ​​block snaps into the snap-fit ​​groove.

[0018] By adopting the above technical solution, after the unlocking work of the unlocking rod is completed, the worker releases the force applied to the unlocking rod, the reset spring resets and pushes the guide ring to move downward along the ring groove, the guide ring drives the unlocking rod to move downward, the unlocking rod drives the guide block to move downward, and during the downward movement of the guide block, it pushes the locking block to engage in the locking groove. The setting of the reset spring realizes the rapid reset of the unlocking rod, and at the same time improves the stability of the locking block in the locking groove, thereby improving the stability of the tooling plate on the substrate.

[0019] Optionally, the tooling plate is provided with a handle.

[0020] By adopting the above technical solution, the handle design makes it easier for workers to take out and place tooling plates, thereby further improving worker convenience.

[0021] Optionally, a rubber pad is provided on the surface of the tooling plate facing the positioning plate.

[0022] By adopting the above technical solution, during the process of the tooling plate abutting against the positioning plate, the rubber pad transforms the hard contact between the tooling plate and the positioning plate into a flexible contact, reducing the damage caused by the tooling plate or the positioning plate bumping into each other, thereby improving the service life of the tooling plate and the positioning components.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. In this embodiment of the application, by setting a positioning component, after the tooling plate is placed on the substrate surface, the worker pushes the tooling plate until it is completely against the end face of the positioning plate, while ensuring that the positioning bolts are against the outer surface of the worktable. After the tooling plate is positioned, the worker fixes the new tooling plate again by connecting components. The setting of the positioning component provides accurate positioning during the worker's installation of the positioning plate, reduces the probability of positional deviation during the installation of the positioning plate, thereby improving the processing quality of the laser engraving equipment.

[0025] 2. This application improves the applicability of the laser engraving device by setting up a connecting component, which allows for changing the adaptable tooling plate according to different types of workpieces. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.

[0027] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this application.

[0028] Figure 3 This is a cross-sectional view of the substrate in Embodiment 2 of this application.

[0029] Figure 4 This is a schematic diagram of the unlocking rod and the locking block in Embodiment 2 of this application.

[0030] Explanation of reference numerals in the attached drawings: 01, worktable; 1, base plate; 101, threaded hole; 2, connecting assembly; 21, connecting bolt; 22, fixing post; 221, snap-fit ​​groove; 23, snap-fit ​​block; 231, guide arc surface; 232, limiting block; 24, clamping spring; 3, tooling plate; 31, handle; 32, rubber pad; 4, positioning assembly; 41, positioning backing plate; 42, positioning bolt; 5, fixing groove; 51, sliding groove; 52, unlocking groove; 521, ring groove; 6, unlocking assembly; 61, unlocking rod; 611, pull ring; 612, guide ring; 62, guide wedge; 621, limiting groove; 63, return spring. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0032] Example 1

[0033] This application discloses a workpiece positioning mechanism for laser engraving equipment.

[0034] Reference Figure 1 A workpiece positioning mechanism for a laser engraving equipment includes a worktable 01, which is the worktable surface of the laser engraving equipment. A base plate 1 is fixedly installed on the surface of the worktable 01. A fixture plate 3 is detachably connected to the base plate 1 via a connecting component 2. Handles 31 are fixedly connected to opposite sides of the fixture plate 3. The handles 31 facilitate workers to hold the fixture plate 3. A positioning component 4 is provided on the base plate 1 to provide positioning for the fixture plate 3.

[0035] Reference Figure 1 The positioning component 4 includes a positioning plate 41 that is fixedly mounted on the surface of the base plate 1 by bolts. The positioning plate has the same length as the tooling plate 3. The end of the tooling plate 3 away from the positioning plate 41 is threaded with a positioning bolt 42. The end of the positioning bolt 42 extends out of the bottom surface of the tooling plate 3. When the installation position of the tooling plate 3 is without deviation, the end face of the tooling plate 3 abuts against the surface of the positioning plate 41, and the end of the positioning bolt 42 extending out of the tooling plate 3 abuts against the outer surface of the worktable 01.

[0036] Reference Figure 1 The substrate 1 has multiple threaded holes 101 arranged in a matrix array on its surface. The connecting component 2 includes multiple connecting bolts 21, which pass through the tooling plate 3 and are threaded into the threaded holes 101.

[0037] When the type of workpiece to be laser engraved changes, the worker first loosens multiple connecting bolts 21, then removes the connecting bolts 21 from the tooling plate 3, finally removes the tooling plate 3 from the base plate 1, and then places the tooling plate 3 that is compatible with the workpiece to be laser engraved on the surface of the base plate 1 and positions it.

[0038] During positioning, the worker pushes the fixture plate 3 until it is completely against the end face of the positioning plate 41, while ensuring that the positioning bolt 42 is against the outer surface of the worktable 01. After the fixture plate 3 is positioned, the worker inserts the connecting bolt 21 through the positioning plate and screws it into the threaded hole 101, thereby realizing the installation of the new fixture plate 3. The positioning component 4 provides precise positioning during the worker's installation of the positioning plate, reduces the probability of positional deviation during the installation of the positioning plate, and thus improves the processing quality of the laser engraving equipment.

[0039] Reference Figure 1 The positioning plate 41 has a rubber pad 32 detachably connected to the surface of the tooling plate 3 via Velcro. When the tooling plate 3 abuts against the positioning plate 41, the rubber pad 32 transforms the hard contact between the tooling plate 3 and the positioning plate 41 into a flexible contact, reducing the damage caused by the tooling plate 3 or the positioning plate 41, thereby improving the service life of the tooling plate 3 and the positioning component 4.

[0040] The implementation principle of a workpiece positioning mechanism for laser engraving equipment in this application embodiment is as follows: When the type of workpiece to be laser engraved changes, the worker first removes the fixture plate 3 from the base plate 1 through the connecting component 2, and then places the fixture plate 3 that is compatible with the workpiece to be laser engraved on the surface of the base plate 1 and positions it. During positioning, the worker pushes the fixture plate 3 until the fixture plate 3 is completely against the end face of the positioning plate 41, while ensuring that the positioning bolt 42 is against the outer surface of the worktable 01. After the fixture plate 3 is positioned, the worker fixes the new fixture plate 3 again through the connecting component 2. The positioning component 4 provides accurate positioning during the worker's installation of the positioning plate, reduces the probability of positional deviation during the installation of the positioning plate, and thus improves the processing quality of the laser engraving equipment.

[0041] Example 2

[0042] Reference Figure 2 , Figure 3 and Figure 4 The difference between this embodiment and Embodiment 1 is that the connecting component 2 includes two fixing posts 22 fixedly connected to the bottom surface of the tooling plate 3. The two fixing posts 22 are respectively arranged on opposite sides of the tooling plate 3. The base plate 1 has fixing grooves 5 that correspond one-to-one with the two fixing posts 22. The fixing posts 22 slide in cooperation with the corresponding fixing grooves 5.

[0043] Reference Figure 2 , Figure 3 and Figure 4Each fixed groove 5 has a sliding groove 51 on its inner sidewall. The length direction of the sliding groove 51 is perpendicular to the fixed groove 5. A snap-fit ​​block 23 is slidably connected in the sliding groove 51. The outer surface of the fixed post 22 has a snap-fit ​​groove 221 that engages with the snap-fit ​​block 23. A clamping spring 24 is sleeved on the outer surface of the snap-fit ​​block 23. One end of the clamping spring 24 is fixedly connected to the inner sidewall of the sliding groove 51, and the other end is fixedly connected to the outer surface of the snap-fit ​​block 23. In its natural state, the snap-fit ​​block 23 is snapped into the snap-fit ​​groove 221. The surface of the snap-fit ​​block 23 facing the fixed post 22 is provided with a guide arc surface 231. The guide arc surface 231 is inclined from top to bottom along the direction close to the axis of the fixed groove 5.

[0044] Reference Figure 2 , Figure 3 and Figure 4 The base plate 1 is provided with an unlocking component 6 corresponding to two locking blocks 23. The unlocking component 6 includes an unlocking rod 61. The base plate 1 has an unlocking groove 52 that slides with the unlocking rod 61 in the vertical direction. The unlocking groove 52 is connected to the sliding groove 51. The bottom end of the unlocking rod 61 is fixedly connected to a guide inclined block 62. The guide inclined block 62 is integrally formed with the unlocking rod 61. The inclined direction of the guide inclined block 62 is inclined from bottom to top along the direction from the unlocking groove 52 to the fixed groove 5. The guide inclined block 62 has a limiting groove 621 in the inclined direction. The end of the locking block 23 is fixedly connected to a limiting block 232 that slides with the limiting groove 621. The end of the unlocking rod 61 away from the guide inclined block 62 is fixedly connected to a pull ring 611 that is convenient for workers to operate.

[0045] Reference Figure 2 , Figure 3 and Figure 4 Each unlocking rod 61 has a guide ring 612 fixedly fitted on its outer surface. The inner side wall of the unlocking groove 52 has an annular groove 521 that slides with the guide ring 612. The outer surface of the unlocking rod 61 is fitted with a return spring 63. One end of the return spring 63 is fixedly connected to the bottom wall of the annular groove 521, and the other end is fixedly connected to the guide ring 612. In its natural state, the limiting block 232 stays at the end of the limiting groove 621 away from the unlocking rod 61, and the locking block 23 is locked inside the locking groove 221.

[0046] The implementation principle of Example 2 is as follows: When it is necessary to disassemble the tooling plate 3, the worker first hooks the pull ring 611 and pulls the two unlocking rods 61 upward. The unlocking rods 61 drive the guide inclined block 62 to move upward. Since the movement direction of the locking block 23 is restricted within the sliding groove 51, the guide inclined block 62 drives the locking block 23 to move away from the fixed groove 5 during the upward movement. When the locking block 23 disengages from the locking groove 221, the worker pulls the tooling plate 3 upward to disengage it from the base plate 1, thereby realizing the disassembly of the tooling plate 3.

[0047] When installing the new tooling plate 3, the worker inserts the fixing post 22 into the fixing groove 5. During the process of the fixing post 22 descending, the fixing post 22 pushes the locking block 23 to move away from the locking groove 221 through the guide slope. At this time, the clamping spring 24 is in a compressed state. When the fixing post 22 descends to the point where the locking groove 221 is directly opposite the locking block 23, the pressure on the clamping spring 24 disappears, and the clamping reset pushes the locking block 23 to engage in the locking groove 221. The fixing post 22 is fixed in the fixing groove 5 through the engaging action of the locking block 23 and the locking groove 221.

[0048] After the fixing is completed, the worker releases the force on the unlocking rod 61, and the reset spring 63 resets and pushes the guide ring 612 to move downward along the ring groove 521. The guide ring 612 drives the unlocking rod 61 to move downward, and the unlocking rod 61 drives the guide wedge block 62 to move downward. During the downward movement of the guide wedge block 62, it pushes the locking block 23 to engage in the locking groove 221. The setting of the reset spring 63 realizes the rapid reset of the unlocking rod 61, and at the same time improves the stability of the locking block 23 in the locking groove 221, thereby improving the stability of the tooling plate 3 on the base plate 1.

[0049] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A workpiece positioning mechanism for a laser engraving apparatus, comprising a worktable (01), characterized in that, The workbench (01) is provided with a base plate (1), a tool plate (3) is detachably connected to the base plate (1) through a connecting assembly (2), the base plate (1) is provided with a positioning assembly (4), the positioning assembly (4) comprises a positioning back plate (41) arranged on the surface of the base plate (1), and a positioning bolt (42) is threadedly connected to the end of the tool plate (3) away from the positioning back plate (41); when the tool plate (3) is connected to the base plate (1) through the connecting assembly (2), the end surface of the tool plate (3) abuts against the surface of the positioning back plate (41), and the positioning bolt (42) extends out of the end of the tool plate (3) and abuts against the outer surface of the workbench (01).

2. The workpiece positioning mechanism for a laser engraving apparatus according to claim 1, wherein The base plate (1) is provided with a plurality of threaded holes (101) in a rectangular array, and the connecting assembly (2) comprises a plurality of connecting bolts (21), the connecting bolts (21) pass through the tool plate (3) and are threadedly connected in the threaded holes (101).

3. The workpiece positioning mechanism for a laser engraving apparatus according to claim 1, wherein The connecting assembly (2) comprises fixing columns (22) arranged on opposite sides of the tool plate (3), the base plate (1) is provided with fixing grooves (5) corresponding to the fixing columns (22) in one-to-one manner, each fixing groove (5) is provided with a sliding groove (51) on the inner side wall, each sliding groove (51) is slidably connected with a clamping block (23), the fixing column (22) is provided with a clamping groove (221) matched with the clamping block (23) on the outer surface, the clamping block (23) is provided with a pressing spring (24) on the outer surface, one end of the pressing spring (24) is arranged on the inner side wall of the sliding groove (51), and the other end is arranged on the outer surface of the clamping block (23); in the natural state of the pressing spring (24), the clamping block (23) is clamped in the clamping groove (221), and the clamping block (23) is provided with a guide arc surface (231), which is arranged from top to bottom along the direction close to the axis of the fixing groove (5).

4. The workpiece positioning mechanism for a laser engraving apparatus according to claim 3, wherein The base plate (1) is provided with an unlocking assembly (6) corresponding to the two clamping blocks (23) in one-to-one manner, the unlocking assembly (6) comprises an unlocking rod (61), the base plate (1) is provided with an unlocking groove (52) slidably matched with the unlocking rod (61) in the vertical direction, the unlocking groove (52) is arranged in communication with the sliding groove (51), the end of the unlocking rod (61) is provided with a guide inclined block (62), the guide inclined block (62) is arranged from bottom to top along the direction from the unlocking groove (52) to the fixing groove (5), the end of the unlocking rod (61) is slidably connected in the inclined direction of the guide inclined block (62), and the end of the unlocking rod (61) is provided with a pull ring (611).

5. The workpiece positioning mechanism for a laser engraving apparatus according to claim 4, wherein The guide inclined block (62) is provided with a limiting groove (621) in the inclined direction, and the end of the clamping block (23) is provided with a limiting block (232) slidably matched with the limiting groove (621).

6. The workpiece positioning mechanism for a laser engraving apparatus according to claim 5, wherein The unlocking rod (61) is sleeved with a guide ring (612) on the outer surface, an annular groove (521) is formed on the inner side wall of the unlocking groove (52) and is in sliding fit with the guide ring (612), a reset spring (63) is sleeved on the outer surface of the unlocking rod (61), one end of the reset spring (63) is arranged on the bottom wall of the annular groove (521), the other end is arranged on the guide ring (612), in the natural state of the reset spring (63), the limiting block (232) is arranged at the end of the limiting groove (621) away from the unlocking rod (61), and the clamping block (23) is clamped in the clamping groove (221).

7. The workpiece positioning mechanism for a laser engraving apparatus according to claim 1, wherein A handle (31) is arranged on the tool plate (3).

8. The workpiece positioning mechanism for a laser engraving apparatus according to claim 1, wherein A rubber pad (32) is arranged on the surface of the tool plate (3) facing the positioning back plate (41).

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