Positioning jig and laser cutting machine

Abstract

The utility model discloses a positioning jig and a laser cutting machine. The positioning jig comprises a fixing plate, the mounting seat is detachably arranged at the top end of the fixing plate, and the mounting seat and the fixing plate are provided with a second through hole and a first through hole respectively, and the second through hole and the first through hole correspond to each other up and down; and the positioning structure comprises positioning blocks symmetrically arranged at the top end of the fixing plate, the positioning blocks are used for fixing a workpiece, and the cut part of the workpiece is correspondingly located above the first through hole and the second through hole. The end portions of the two sides of the workpiece are fixed through the positioning structure, the workpiece is in an overhead state through the second through hole and the first through hole which are formed in the mounting base and the fixing plate respectively, and therefore the positioning structure and the mounting base can be prevented from being damaged by laser to a great extent, and the workpiece can be positioned more stably. And the problem that the mounting and cutting precision is reduced due to the damage of the positioning jig can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser cutting machines, in particular to a positioning fixture and a laser cutting machine. Background Art

[0002] Laser cutting machine is a commonly used processing equipment. The commonly used product fixing method is usually to fix the product on a positioning fixture, and then perform laser cutting on the fixed product to ensure the safety of laser cutting.

[0003] However, during the laser cutting process, the laser will pass through the product and may cause varying degrees of damage to the positioning jig. Not only will the damaged positioning jig need to be replaced frequently, making the positioning jig a consumable and increasing costs, but the use of damaged fixing plate jigs will also affect the installation and cutting accuracy of the product. Utility Model Content

[0004] The present invention aims to solve the problems in the prior art and proposes the following technical solutions:

[0005] The utility model provides a positioning fixture, including:

[0006] Fixed plate;

[0007] A mounting seat, the mounting seat is detachably mounted on the top of the fixing plate, and the mounting seat and the fixing plate are respectively provided with a second through hole and a first through hole at upper and lower positions corresponding to each other;

[0008] The positioning structure includes positioning blocks symmetrically arranged on the top of the fixed plate, the positioning blocks fix the workpiece, and the cut parts of the workpiece correspond to the top of the through hole 1 and the through hole 2.

[0009] As a preferred embodiment of the above technical solution, the top of the fixing plate is symmetrically provided with a connecting part, the position of the mounting seat corresponding to the connecting part is provided with a plug-in part that plugs in with it, and the end of the plug-in part that is away from each other is also movably provided with a clamping structure.

[0010] As a preferred embodiment of the above technical solution, it also includes a frame, the fixing plate is horizontally fixed inside the frame, and the clamping structure includes a fixing cylinder horizontally arranged on the inner wall of the frame corresponding to the position of the plug-in part, and a screw is threadedly inserted in the fixing cylinder. The screw is rotated so that the end of the screw is close to the plug-in part and the plug-in part abuts against the connecting part to fix the mounting seat.

[0011] As a preferred embodiment of the above technical solution, a clamping block is provided at one end of the screw rod close to the connecting portion, and the screw rod is rotated to drive the clamping block to gradually approach or gradually move away from the plug-in portion.

[0012] As a preferred embodiment of the above technical solution, a chip collecting box with an open top is provided at the bottom of the frame, and the opening of the chip collecting box corresponds to the second through hole and a position below the first through hole.

[0013] As a preferred embodiment of the above technical solution, a positioning portion is provided at the top of the positioning block, an adsorption hole is provided on the positioning portion, a cavity connected to the adsorption hole is provided inside the positioning block, and a connecting tube inserted into the cavity is also provided on the positioning block, and the other end of the connecting tube is connected to the negative pressure source.

[0014] As a preferred embodiment of the above technical solution, a baffle is further provided on the top of the positioning block.

[0015] The utility model provides a laser cutting machine, comprising any one of the positioning jigs described above.

[0016] The beneficial effects of the utility model are:

[0017] The utility model fixes the two end portions of the workpiece by means of the positioning structure, and the workpiece is placed in an overhead state by means of the second through hole and the first through hole respectively provided on the mounting seat and the fixing plate. Therefore, since the positioning structure and the mounting seat itself can be largely avoided from being damaged by the laser, the problem of reduced installation and cutting accuracy caused by damage to the positioning fixture can be reduced. Moreover, by providing a detachable connection between the mounting seat and the fixing plate, the mounting seat and the positioning structure can be easily disassembled and replaced, which can reduce the cost and time of replacing the mounting seat and the positioning structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is a schematic diagram of the overall structure of the laser cutting machine in the embodiment;

[0019] Figure 2 What is shown is a schematic diagram of the positioning structure in the embodiment;

[0020] Figure numerals: 10, frame; 21, fixing plate; 211, connecting part; 213, fixing cylinder; 214, screw; 22, mounting seat; 221, plug-in part; 23, through hole 1; 24, through hole 2; 31, positioning block; 311, cavity; 32, positioning part; 33, connecting pipe; 34, baffle; 40, chip box. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0022] Example

[0023] like Figure 1 、 Figure 2 As shown, Figure 1Shown is a schematic diagram of the overall structure of the laser cutting machine in the embodiment; Figure 2 What is shown is a schematic diagram of the positioning structure in the embodiment;

[0024] Positioning fixtures include:

[0025] Fixed plate 21;

[0026] The mounting seat 22 is detachably mounted on the top of the fixing plate 21. The mounting seat 22 and the fixing plate 21 are respectively provided with a second through hole 24 and a first through hole 23 at upper and lower positions corresponding to each other;

[0027] The positioning structure includes a positioning block 31 symmetrically arranged on the top of the fixing plate 21. The positioning block 31 fixes the workpiece, and the cutting portion of the workpiece corresponds to above the through hole 1 23 and the through hole 2 24.

[0028] The positioning structure fixes the two side ends of the workpiece, and through the through hole 24 and the through hole 1 23 respectively provided on the mounting seat 22 and the fixing plate 21, the workpiece is placed in an overhead state. Therefore, since the positioning structure and the mounting seat 22 itself can be largely avoided from being damaged by the laser, the problem of reduced installation and cutting accuracy caused by damage to the positioning fixture can be reduced. Moreover, by providing a detachable connection between the mounting seat 22 and the fixing plate 21, the mounting seat 22 and the positioning structure can be easily disassembled and replaced, which can reduce the cost and time of replacing the mounting seat 22 and the positioning structure.

[0029] like Figure 1 、 Figure 2 As shown, Figure 1 Shown is a schematic diagram of the overall structure of the laser cutting machine in the embodiment; Figure 2 What is shown is a schematic diagram of the positioning structure in the embodiment;

[0030] The top of the fixing plate 21 is symmetrically provided with a connecting portion 211 , and the mounting seat 22 is provided with a plugging portion 221 corresponding to the connecting portion 211 , and a clamping structure is movably provided at one end of the plugging portion 221 away from each other.

[0031] It also includes a frame 10, a fixing plate 21 fixed horizontally inside the frame 10, and a clamping structure including a fixing cylinder 213 horizontally arranged on the inner wall of the frame 10 corresponding to the position of the plug-in portion 221. A screw rod 214 is threadedly inserted into the fixing cylinder 213. The screw rod 214 is rotated so that the end of the screw rod 214 is close to the plug-in portion 221 and the plug-in portion 221 is abutted against the connecting portion 211 to fix the mounting base 22.

[0032] Specifically, the connecting portion 211 and the plug-in portion 221 are L-shaped and arranged oppositely. The two can be plugged into each other, and the connecting portion 211 and the plug-in portion 221 are clamped and fixed in the plugged state through the clamping structure to achieve stable installation of the mounting seat 22.

[0033] A clamping block is provided at one end of the screw rod 214 close to the plug-in portion 221 . By rotating the screw rod 214 , the screw rod 214 can drive the clamping block to gradually approach or gradually move away from the plug-in portion 221 , thereby achieving interference fixation or release of the plug-in portion 221 .

[0034] like Figure 1 As shown, Figure 1 Shown is a schematic diagram of the overall structure of the laser cutting machine in the embodiment;

[0035] A chip collecting box 40 with an open top is provided at the bottom of the frame 10 , and the opening of the chip collecting box 40 corresponds to a position below the second through hole 24 and the first through hole 23 .

[0036] By providing the chip collecting box 40 , the chips generated during the cutting process can fall into the chip collecting box 40 through the second through hole 24 and the first through hole 23 in sequence, so as to facilitate the centralized processing of the chips.

[0037] like Figure 1 、 Figure 2 As shown, Figure 1 Shown is a schematic diagram of the overall structure of the laser cutting machine in the embodiment; Figure 2 What is shown is a schematic diagram of the positioning structure in the embodiment;

[0038] A positioning portion 32 is provided at the top of the positioning block 31, and an adsorption hole is provided on the positioning portion 32. A cavity 311 connected to the adsorption hole is provided inside the positioning block 31. A connecting tube 33 inserted into the cavity 311 is also provided on the positioning block 31, and the other end of the connecting tube 33 is connected to the negative pressure source.

[0039] Specifically, the positioning portion 32 is a raised column, and the positioning block 31 positions and fixes the workpiece by negative pressure adsorption. The negative pressure source can be a negative pressure pump, which forms negative pressure in the cavity 311 through the connecting pipe 33, and adsorbs the workpiece placed above through the positioning portion 32 to fix the workpiece.

[0040] A baffle 34 is also provided at the top of the positioning block 31;

[0041] The baffle 34 can play a role in positioning the substrate, so that the workpiece can be placed in an accurate position and the cutting accuracy is guaranteed.

[0042] Working principle: When this positioning fixture is in use, the two ends of the workpiece are placed and adsorbed on the positioning part 32 of the positioning block 31. At this time, the workpiece is in an overhead state, which can largely avoid the positioning structure and the mounting seat 22 itself from being damaged by the laser during the cutting process, thereby reducing the problem of reduced installation and cutting accuracy caused by damage to the positioning fixture.

[0043] It also includes a laser cutting machine, which includes the above-mentioned positioning fixture.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. Positioning fixture, characterized in that, include: Fixed plate (21); A mounting seat (22), the mounting seat (22) being detachably mounted on the top of the fixing plate (21), and the mounting seat (22) and the fixing plate (21) being respectively provided with a second through hole (24) and a first through hole (23) corresponding to upper and lower positions; A positioning structure, comprising a positioning block (31) symmetrically arranged on the top of a fixing plate (21), wherein the positioning block (31) fixes a workpiece, and a cutting portion of the workpiece corresponds to above through hole 1 (23) and through hole 2 (24).

2. The positioning jig according to claim 1, characterized in that: The top of the fixing plate (21) is symmetrically provided with a connecting portion (211), and the mounting seat (22) is provided with a plug-in portion (221) corresponding to the connecting portion (211) and plugged in with the connecting portion (211). A clamping structure is also movably provided at one end of the plug-in portion (221) that is away from each other.

3. The positioning jig according to claim 2, characterized in that: The invention also includes a frame (10), wherein the fixing plate (21) is horizontally fixedly arranged inside the frame (10), and the clamping structure includes a fixing cylinder (213) horizontally arranged on the inner side wall of the frame (10) corresponding to the position of the plug-in portion (221), and a screw rod (214) is threadedly inserted into the fixing cylinder (213). The screw rod (214) is rotated so that the end of the screw rod (214) is close to the plug-in portion (221) and the plug-in portion (221) is abutted against the connecting portion (211) to fix the mounting seat (22).

4. The positioning jig according to claim 3, characterized in that: A clamping block is provided at one end of the screw rod (214) close to the connecting portion (211), and when the screw rod (214) is rotated, the screw rod (214) drives the clamping block to gradually approach or gradually move away from the plug-in portion (221).

5. The positioning jig according to claim 3, characterized in that: A chip collecting box (40) with an open top is provided at the bottom of the frame (10), and the opening of the chip collecting box (40) corresponds to the position below the second through hole (24) and the first through hole (23).

6. The positioning jig according to claim 5, characterized in that: The top of the positioning block (31) is provided with a positioning portion (32), the positioning portion (32) is provided with an adsorption hole, the interior of the positioning block (31) is provided with a cavity (311) connected to the adsorption hole, and the positioning block (31) is also provided with a connecting pipe (33) inserted into the cavity (311), the other end of the connecting pipe (33) is connected to a negative pressure source.

7. The positioning jig according to claim 1, characterized in that: A baffle (34) is also provided at the top of the positioning block (31).

8. Laser cutting machine, characterized in that, It comprises the positioning jig as described in any one of claims 1 to 7.

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