A laser engraving fixing jig

Abstract

The present invention provides a laser engraving fixing fixture, belonging to the technical field of laser engraving machines, which includes a base, a support pipe fitting, a gas supply component, a driving component, and an air extraction component. A first partition and a second partition are fixedly arranged inside the base. A chamber is provided on one side of the first partition away from the second partition. One end of the support pipe fitting communicates with the chamber, and the other end penetrates through the second partition and extends to the outside of the base for supporting a workpiece. The second partition is hollow inside. The gas supply component is installed on one side of the second partition and communicates with the inner cavity of the second partition. The air extraction component is installed on one side of the first partition and communicates with the chamber. Compared with the prior art, the embodiment of the present invention can realize the stable clamping of special-shaped workpieces, thereby improving the stability during subsequent engraving of special-shaped workpieces, and has the advantages of good workpiece clamping and fixing effect and high fixing efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser engraving machines, and particularly relates to a laser engraving fixing jig. Background Art

[0002] Currently, when a laser engraving machine engraves a workpiece, a fixing jig is usually used to clamp and fix the workpiece to ensure the stability of the workpiece during the laser engraving process.

[0003] Most of the existing fixing jigs drive the clamping jaws to move by means of a lead screw slider mechanism, and the clamping jaws are used to clamp the side wall of the workpiece. This clamping method is relatively traditional. When clamping a special-shaped workpiece, the contact area between the clamping jaws and the side wall of the workpiece is relatively limited, resulting in insufficient clamping stability of the workpiece, which is not conducive to the subsequent stable engraving of the workpiece and urgently needs improvement. Summary of the Invention

[0004] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the embodiment of the present invention is to provide a laser engraving fixing jig.

[0005] To solve the above technical problem, the present invention provides the following technical solutions:

[0006] A laser engraving fixing jig, comprising a base, a support pipe fitting, a gas supply assembly, a driving assembly, and an air extraction assembly.

[0007] A first partition and a second partition are fixedly arranged inside the base. A chamber is provided on one side of the first partition away from the second partition.

[0008] One end of the support pipe fitting communicates with the chamber, and the other end penetrates through the second partition and extends to the outside of the base for supporting the workpiece.

[0009] The second partition is hollow inside. The gas supply assembly is installed on one side of the second partition and communicates with the inner cavity of the second partition.

[0010] The air extraction assembly is installed on one side of the first partition and communicates with the chamber.

[0011] The driving assembly is arranged between the first partition and the second partition and is used to drive the gas supply assembly and the air extraction assembly to act simultaneously.

[0012] When the gas supply assembly acts, air can be pressed into the inner cavity of the second partition to clamp the support pipe fitting.

[0013] When the air extraction assembly acts, the inside of the chamber can be evacuated to adsorb the workpiece to one end of the support pipe fitting.

[0014] As a further improvement of the present invention: several groups of the supporting pipe fittings are arranged in a rectangular array, and the structure of each group of the supporting pipe fittings is the same, and each group includes a first hard pipe, a flexible pipe, and a second hard pipe.

[0015] One end of the first hard pipe passes through the first partition and communicates with the chamber, and the other end communicates with the second hard pipe through the flexible pipe. The end of the second hard pipe away from the first hard pipe penetrates through the second partition and extends to the outside of the base.

[0016] The second hard pipe is movably matched with the second partition and the base, and an elastic member is also connected between the side wall of the second hard pipe and the second partition. The elastic member is used to provide elastic support for the second hard pipe.

[0017] As a further improvement of the present invention: a flexible suction nozzle is provided at the end of the second hard pipe away from the first hard pipe.

[0018] As a further improvement of the present invention: a plurality of through holes for the second hard pipe to pass through are provided on the second partition. A flexible layer is annularly provided inside the through holes, and air holes communicating with the inner cavity of the second partition are provided on the inner wall of the through holes.

[0019] As a further improvement of the present invention: the flexible layer can be a rubber layer or a silica gel layer.

[0020] As a further improvement of the present invention: the air supply assembly includes a first air storage cylinder, a first piston block, and a first piston rod.

[0021] The first air storage cylinder is fixedly arranged on one side of the second partition. One end of the first air storage cylinder is communicated with the inner cavity of the second partition through a first air pipe. The first piston block is movably arranged inside the first air storage cylinder. One end of the first piston rod is connected to the first piston block, and the other end extends to the outside of the first air storage cylinder.

[0022] The driving assembly includes a motor, a gear, and a first rack.

[0023] The motor is fixedly arranged inside the base. One side of the gear is connected to the output end of the motor through a rotating shaft. The first rack is installed on one side of the first piston rod and meshes with the gear.

[0024] As a further improvement of the present invention: the air extraction assembly includes a second piston rod, a second air storage cylinder, and a second piston block.

[0025] The second air storage cylinder is fixedly arranged on one side of the first partition plate. One end of the second air storage cylinder is communicated with the chamber through a second air pipe. The second piston block is movably arranged inside the second air storage cylinder. One end of the second piston rod is connected to the second piston block, and the other end extends outside the second air storage cylinder.

[0026] The driving assembly further includes a second rack, which is installed on one side of the second piston rod and meshes with the gear.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] In the embodiment of the present invention, when it is necessary to engrave a workpiece, the workpiece can be placed at one end of the supporting pipe fitting outside the base. At this time, under the action of gravity, the workpiece can drive the supporting pipe fitting to move into the base. The driving assembly drives the air supply assembly and the air extraction assembly to act simultaneously. When the air supply assembly acts, air can be pressed into the inner cavity of the second partition plate, thereby clamping the supporting pipe fitting to realize the fixation of the supporting pipe fitting. When the air extraction assembly acts, the inside of the chamber can be evacuated, making the inside of the chamber in a negative pressure state. Since one end of the supporting pipe fitting is communicated with the chamber, when the inside of the chamber is in a negative pressure state, the workpiece can be adsorbed at one end of the supporting pipe fitting outside the base to realize the adsorption and fixation of the workpiece, so as to facilitate the workpiece to be stably laser engraved. Compared with the prior art, the stable clamping of special-shaped workpieces can be realized, thereby improving the stability of the subsequent engraving of special-shaped workpieces, and having the advantages of good workpiece clamping and fixation effect and high fixation efficiency. Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of a laser engraving fixing jig;

[0030] Figure 2 It is a distribution schematic diagram of the supporting pipe fittings in a laser engraving fixing jig;

[0031] Figure 3 It is Figure 1 The enlarged schematic diagram of area A in

[0032] Figure 4 It is Figure 1 The enlarged schematic diagram of area B in

[0033] Figure 5 It is Figure 1 The enlarged schematic diagram of area C in

[0034] In the figure: 10 - base, 101 - chamber, 102 - first partition, 103 - second partition, 104 - flexible layer, 105 - air hole, 20 - support pipe fitting, 201 - first rigid pipe, 202 - flexible pipe, 203 - second rigid pipe, 204 - flexible suction nozzle, 30 - elastic member, 40 - air supply assembly, 401 - first air storage cylinder, 402 - first piston block, 403 - first piston rod, 404 - first air pipe, 50 - drive assembly, 501 - gear, 502 - rotating shaft, 503 - first rack, 504 - second rack, 60 - air extraction assembly, 601 - second piston rod, 602 - second air storage cylinder, 603 - second piston block, 604 - second air pipe. Detailed implementation manner

[0035] The technical solution of this patent will be further described in detail below in conjunction with the specific implementation manner.

[0036] The embodiments of this patent will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation to this patent.

[0037] Please refer to Figure 1 , this embodiment provides a laser engraving fixing fixture, including a base 10, a support pipe fitting 20, an air supply assembly 40, a drive assembly 50, and an air extraction assembly 60. A first partition 102 and a second partition 103 are fixedly arranged inside the base 10. A chamber 101 is provided on one side of the first partition 102 away from the second partition 103. One end of the support pipe fitting 20 communicates with the chamber 101, and the other end penetrates through the second partition 103 and extends outside the base 10 for providing support to the workpiece. The inside of the second partition 103 is hollow. The air supply assembly 40 is installed on one side of the second partition 103 and communicates with the inner cavity of the second partition 103. The air extraction assembly 60 is installed on one side of the first partition 102 and communicates with the chamber 101. The drive assembly 50 is arranged between the first partition 102 and the second partition 103 for driving the air supply assembly 40 and the air extraction assembly 60 to act simultaneously. When the air supply assembly 40 acts, air can be pressed into the inner cavity of the second partition 103 to clamp the support pipe fitting 20. When the air extraction assembly 60 acts, the inside of the chamber 101 can be evacuated to adsorb the workpiece to one end of the support pipe fitting 20.

[0038] When it is necessary to engrave a workpiece, the workpiece can be placed at one end of the support pipe fitting 20 outside the base 10. At this time, under the action of gravity, the workpiece can drive the support pipe fitting 20 to move into the base 10. The driving assembly 50 drives the air supply assembly 40 and the air extraction assembly 60 to act simultaneously. When the air supply assembly 40 acts, air can be pressed into the inner cavity of the second partition 103, thereby clamping the support pipe fitting 20 to achieve the fixation of the support pipe fitting 20. When the air extraction assembly 60 acts, the inside of the chamber 101 can be evacuated, making the inside of the chamber 101 in a negative pressure state. Since one end of the support pipe fitting 20 is communicated with the chamber 101, when the inside of the chamber 101 is in a negative pressure state, the workpiece can be adsorbed at one end of the support pipe fitting 20 outside the base 10 to achieve the adsorption and fixation of the workpiece, so that the workpiece can be stably laser engraved.

[0039] Please refer to Figure 1 and Figure 2 , in one embodiment, a plurality of groups of the support pipe fittings 20 are arranged in a rectangular array. Each group of the support pipe fittings 20 has the same structure and includes a first hard pipe 201, a flexible pipe 202 and a second hard pipe 203. One end of the first hard pipe 201 passes through the first partition 102 and is communicated with the chamber 101, and the other end is communicated with the second hard pipe 203 through the flexible pipe 202. One end of the second hard pipe 203 away from the first hard pipe 201 penetrates through the second partition 103 and extends to the outside of the base 10. The second hard pipe 203 is movably matched with the second partition 103 and the base 10. An elastic member 30 is also connected between the side wall of the second hard pipe 203 and the second partition 103. The elastic member 30 is used to provide elastic support for the second hard pipe 203.

[0040] By placing the workpiece to be engraved at one end of the second hard tube 203 outside the base 10, under the action of the gravity of the workpiece, the second hard tube 203 can adaptively move into the base 10. At the same time, the second hard tube 203 moves adaptively relative to the second partition 103. At this time, the elastic member 30 provides elastic support for the second hard tube 203 to ensure that one end of the second hard tube 203 is in close contact with the workpiece. When the workpiece is stable, the driving assembly 50 drives the air supply assembly 40 and the air extraction assembly 60 to act simultaneously. When the air supply assembly 40 acts, it presses air into the inner cavity of the second partition 103 to clamp the second hard tube 203, so as to ensure that the second hard tube 203 stably supports the workpiece. When the air extraction assembly 60 acts, it extracts air from the inside of the chamber 101, making the inside of the chamber 101 in a negative pressure state, thereby adsorbing and fixing the workpiece at one end of the second hard tube 203 outside the base 10 to improve the stability of the workpiece during the subsequent engraving process; in the above process, the second hard tubes 203 distributed in a plurality of rectangular arrays provide multi-point support for the bottom of the workpiece. When the inside of the chamber 101 is in a negative pressure state, a plurality of second hard tubes 203 can adsorb and fix the workpiece at multiple points, so as to meet the fixing requirements of workpieces with irregular outer surfaces, and have the advantage of good fixing effect.

[0041] In one embodiment, the elastic member 30 can be a spring or a metal shrapnel, and there is no limitation here.

[0042] Please refer to Figure 1 , in one embodiment, a flexible suction nozzle 204 is provided at one end of the second hard tube 203 away from the first hard tube 201. By providing the flexible suction nozzle 204, the sealing performance between the second hard tube 203 and the bottom of the workpiece can be improved, thereby improving the adsorption and fixing effect on the workpiece.

[0043] Please refer to Figure 3 , in one embodiment, a plurality of through holes through which the second hard tube 203 can pass are formed in the second partition 103. A flexible layer 104 is provided around the inside of the through holes, and air holes 105 communicating with the inner cavity of the second partition 103 are formed on the inner wall of the through holes.

[0044] When the air supply assembly 40 acts to press air into the inner cavity of the second partition 103, the air can enter the inside of the through holes through the air holes 105, thereby driving the flexible layer 104 to expand and deform, thereby tensioning the second hard tube 203 and realizing the clamping of the second hard tube 203 to ensure that the second hard tube 203 can stably support the workpiece.

[0045] In one embodiment, the flexible layer 104 can be a rubber layer or a silica gel layer, and there is no limitation here.

[0046] Please refer to Figure 1 , Figure 3 and Figure 4, in one embodiment, the air supply assembly 40 includes a first air storage cylinder 401, a first piston block 402, and a first piston rod 403. The first air storage cylinder 401 is fixedly arranged on one side of the second partition plate 103. One end of the first air storage cylinder 401 is communicated with the inner cavity of the second partition plate 103 through a first air pipe 404. The first piston block 402 is movably arranged inside the first air storage cylinder 401. One end of the first piston rod 403 is connected to the first piston block 402, and the other end extends to the outside of the first air storage cylinder 401. The driving assembly 50 includes a motor (not shown in the figure), a gear 501, and a first rack 503. The motor is fixedly arranged inside the base 10. One side of the gear 501 is connected to the output end of the motor through a rotating shaft 502. The first rack 503 is installed on one side of the first piston rod 403 and meshes with the gear 501.

[0047] The motor drives the rotating shaft 502 to rotate, and then drives the gear 501 to rotate. By the meshing action of the gear 501 and the first rack 503, the first piston rod 403 is driven to move. When the first piston rod 403 moves, it can drive the first piston block 402 to move towards the inside of the first air storage cylinder 401, so as to press the air inside the first air storage cylinder 401 from the first air pipe 404 to the inner cavity of the first partition plate 103, and then press it to the inside of the through hole through the air hole 105, thereby driving the flexible layer 104 to expand and deform, and realizing the tensioning and fixing of the second rigid tube 203.

[0048] Please refer to Figure 1 and Figure 5 , in one embodiment, the air extraction assembly 60 includes a second piston rod 601, a second air storage cylinder 602, and a second piston block 603. The second air storage cylinder 602 is fixedly arranged on one side of the first partition plate 102. One end of the second air storage cylinder 602 is communicated with the chamber 101 through a second air pipe 604. The second piston block 603 is movably arranged inside the second air storage cylinder 602. One end of the second piston rod 601 is connected to the second piston block 603, and the other end extends to the outside of the second air storage cylinder 602. The driving assembly 50 further includes a second rack 504. The second rack 504 is installed on one side of the second piston rod 601 and meshes with the gear 501.

[0049] When the gear 501 rotates to drive the first piston rod 403 to move, it can also drive the second piston rod 601 to move in the reverse direction through the meshing action of the gear 501 and the second rack 504, and then drive the second piston block 603 to move towards the outside of the second air storage cylinder 602. At this time, through the movement of the second piston block 603, the air inside the chamber 101 can be extracted from the second air pipe 604 to the inside of the second air storage cylinder 602, so that the inside of the chamber 101 presents a negative pressure state, and the workpiece is adsorbed and fixed to one end of the second rigid tube 203 located outside the base 10.

[0050] In the embodiment of the present invention, when it is necessary to engrave a workpiece, the workpiece can be placed at one end of the support pipe fitting 20 outside the base 10. At this time, under the action of gravity, the workpiece can drive the support pipe fitting 20 to move into the base 10. The driving assembly 50 drives the air supply assembly 40 and the air extraction assembly 60 to act simultaneously. When the air supply assembly 40 acts, air can be pressed into the inner cavity of the second partition plate 103, thereby clamping the support pipe fitting 20 to realize the fixation of the support pipe fitting 20. When the air extraction assembly 60 acts, the inside of the chamber 101 can be evacuated, so that the inside of the chamber 101 presents a negative pressure state. Since one end of the support pipe fitting 20 is communicated with the chamber 101, when the inside of the chamber 101 presents a negative pressure state, the workpiece can be adsorbed at one end of the support pipe fitting 20 outside the base 10 to realize the adsorption and fixation of the workpiece, so as to facilitate the workpiece to stably perform laser engraving. Compared with the prior art, it can realize the stable clamping of special-shaped workpieces, and has the advantages of good workpiece clamping and fixation effect and high fixation efficiency.

[0051] The above has described the preferred embodiments of this patent in detail, but this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can also be made without departing from the purpose of this patent.

Claims

1. A laser engraving fixing jig, characterized in that, It includes a base, a support pipe fitting, a gas supply assembly, a drive assembly and an air extraction assembly. A first partition and a second partition are fixedly arranged inside the base. A chamber is provided on one side of the first partition away from the second partition. One end of the support pipe fitting is communicated with the chamber, and the other end penetrates through the second partition and extends to the outside of the base for providing support to the workpiece. The second partition is hollow inside. The gas supply assembly is installed on one side of the second partition and communicated with the inner cavity of the second partition. The air extraction assembly is installed on one side of the first partition and communicated with the chamber. The drive assembly is arranged between the first partition and the second partition and is used for driving the gas supply assembly and the air extraction assembly to act simultaneously. When the gas supply assembly acts, it can press air into the inner cavity of the second partition to clamp the support pipe fitting. When the air extraction assembly acts, it can extract the air inside the chamber to adsorb the workpiece to one end of the support pipe fitting. A plurality of groups of the support pipe fittings are arranged in a rectangular array. Each group of the support pipe fittings has the same structure and includes a first hard pipe, a flexible pipe and a second hard pipe. One end of the first hard pipe penetrates through the first partition and is communicated with the chamber, and the other end is communicated with the second hard pipe through the flexible pipe. The end of the second hard pipe away from the first hard pipe penetrates through the second partition and extends to the outside of the base. The second hard pipe is movably matched with the second partition and the base. An elastic member is also connected between the side wall of the second hard pipe and the second partition. The elastic member is used for providing elastic support to the second hard pipe. A plurality of through holes for the second hard pipe to pass through are formed in the second partition. A flexible layer is annularly arranged inside the through holes, and air holes communicated with the inner cavity of the second partition are formed on the inner wall of the through holes. The gas supply assembly includes a first air storage cylinder, a first piston block and a first piston rod. The first air storage cylinder is fixedly arranged on one side of the second partition. One end of the first air storage cylinder is communicated with the inner cavity of the second partition through a first air pipe. The first piston block is movably arranged inside the first air storage cylinder. One end of the first piston rod is connected with the first piston block, and the other end extends to the outside of the first air storage cylinder. The drive assembly includes a motor, a gear and a first rack. The motor is fixedly arranged inside the base. One side of the gear is connected with the output end of the motor through a rotating shaft. The first rack is installed on one side of the first piston rod and meshes with the gear. The air extraction assembly includes a second piston rod, a second air storage cylinder and a second piston block. The second air storage cylinder is fixedly arranged on one side of the first partition. One end of the second air storage cylinder is communicated with the chamber through a second air pipe. The second piston block is movably arranged inside the second air storage cylinder. One end of the second piston rod is connected with the second piston block, and the other end extends to the outside of the second air storage cylinder. The drive assembly further includes a second rack. The second rack is installed on one side of the second piston rod and meshes with the gear.

2. The laser engraving fixing jig according to claim 1, characterized in that, A flexible suction nozzle is arranged at the end of the second hard pipe away from the first hard pipe.

3. The laser engraving fixing jig according to claim 1, characterized in that, The flexible layer is a rubber layer or a silica gel layer.

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