Laser cutting workpiece positioning device

Abstract

The utility model belongs to the field of laser cutting, and discloses a laser cutting workpiece positioning device which comprises a fixing plate. The upper end of the fixing plate is provided with a horizontally-placed first sliding groove, the upper end of the fixing plate is provided with a pair of symmetrically-placed barrier strips in the axis direction of the first sliding groove, and the barrier strips are both perpendicular to the first sliding groove and are both connected to the upper end face of the fixing plate in a sliding mode; horizontally-placed limiting strips are fixed to the upper ends of the blocking strips, the limiting strips and the blocking strips are coaxially placed, and one ends of the limiting strips horizontally extend towards the symmetrical plane ends of the two blocking strips; sliding pieces are fixed to the lower ends of the barrier strips, the upper ends of the sliding pieces are slidably clamped in the first sliding grooves, and a driving assembly is arranged at the lower end of the fixing plate; the device can be suitable for positioning and fixing various rectangular plates with different thicknesses, the distances between the upper end faces of the rectangular plates with different thicknesses and the laser cutting head are consistent all the time after the rectangular plates with different thicknesses are positioned and fixed, and the distance between the laser cutting head and the upper end faces of the plates does not need to be adjusted according to the thicknesses of the rectangular plates.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of laser cutting, specifically relates to a laser cutting workpiece positioning device. BACKGROUND

[0002] Laser cutting refers to the use of high-power density laser beam to irradiate workpieces, so that the workpieces are heated to vaporization temperature quickly, thereby evaporating to form holes, and with the movement of the light beam along the workpiece, the holes can continuously form a narrow cutting seam, completing the cutting of the material, which is a common, mature and efficient workpiece cutting processing method.

[0003] During laser cutting, it is usually necessary to ensure that the laser is focused to the correct position at the focal point position to obtain the best cutting effect; at present, when cutting various thickness specifications of rectangular plates, the position height of the laser cutting head needs to be adjusted by the operator according to the thickness of the plate after the plate is positioned and clamped, that is, the position height of the laser cutting head needs to be adjusted once after the plate of different thickness specifications is replaced each time, therefore, when cutting various specifications of plates with different thicknesses in the prior art, the position height of the laser cutting head needs to be adjusted frequently. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a laser cutting workpiece positioning device, which solves the problem that the position height of the laser cutting head needs to be adjusted frequently when cutting various specifications of plates with different thicknesses in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A laser cutting workpiece positioning device, comprising a fixed plate;

[0007] A first sliding groove horizontally provided on the upper end of the fixed plate, a pair of symmetrically arranged stop bars arranged along the axis direction of the first sliding groove on the upper end of the fixed plate, the stop bars being vertically arranged with the first sliding groove, and the stop bars being slidingly connected to the upper end surface of the fixed plate;

[0008] A limiting bar horizontally fixed to the upper end of the stop bar, the limiting bar being coaxially arranged with the stop bar, and the limiting bar extending horizontally from one end to the symmetric plane end of the two stop bars;

[0009] A sliding member fixed to the lower end of the stop bar, the upper end of the sliding member being slidingly connected to the first sliding groove, a driving assembly provided at the lower end of the fixed plate, the driving assembly being used to drive the two sliding members to approach or move away from each other;

[0010] The sliding member is provided with a lifting part, and the upper end of the lifting part is connected with a pressing block.

[0011] The above technical scheme has the following principles and effects:

[0012] In use, the two blocking strips are driven to move close to each other by the driving assembly, and then the rectangular plate to be positioned and fixed is placed between the two blocking strips, and the upper end surface of the rectangular plate is located below the limiting strip. The two ends of the rectangular plate close to the blocking strips are placed above the pressing blocks, and then the two blocking strips are continuously driven to move close to each other. When the two blocking strips are in contact with the rectangular plate, the pressing blocks are driven to move upward by the lifting part, so that the upper end surface of the rectangular plate is tightly attached to the limiting strip, and the positioning and fixing of the rectangular plate are completed. The positioning and fixing can be applied to various rectangular plates with different thicknesses, and the upper end surface of the rectangular plate to be positioned and fixed is flush with the lower end surface of the limiting strip, that is, the distance between the upper end surface of the rectangular plate to be positioned and fixed and the laser cutting head is always consistent after the rectangular plate with different thicknesses is positioned and fixed, and it is not necessary to adjust the distance between the laser cutting head and the upper end surface of the plate according to the thickness of the rectangular plate.

[0013] A second sliding groove coaxial with the first sliding groove is formed in the fixed plate, and the pressing blocks are slidably connected in the second sliding groove. The lifting part can drive the pressing blocks to move up and down and pass through the second sliding groove.

[0014] The second sliding groove is provided with two parallel second sliding grooves, and the two second sliding grooves are located at the positions close to the two ends of the blocking strips. The pressing blocks and the lifting part at any limiting strip are correspondingly provided with two pressing blocks and two lifting parts, respectively, and the two pressing blocks are located in the two second sliding grooves.

[0015] The lifting part includes a vertically placed telescopic cylinder, and the telescopic cylinder is fixedly installed on the sliding member. The output end of the telescopic cylinder is fixed to the corresponding pressing block.

[0016] The driving assembly includes a pair of support plates fixedly connected to the fixed plate, and the two support plates are arranged along the axis direction of the first sliding groove.

[0017] The driving assembly further includes a screw rod rotatably connected between the two support plates. The screw rod is coaxially placed with the first sliding groove, and the screw rod is located on the two sides of the symmetry plane of the two blocking strips, and the screw thread direction of the screw rod on the two sides is opposite. The screw rod passes through the sliding member and is threadedly connected with the sliding member.

[0018] A rotating motor is installed on any support plate, and the output end of the rotating motor is connected with the screw rod.

[0019] The nouns, conjunctions or adjectives involved in the above technical scheme are explained as follows:

[0020] Fixed connection: refers to the connection between two or more components by welding, gluing or other methods, which cannot be easily separated.

[0021] Threaded connection: the way of connecting two components together through threaded structure, threaded connection can provide firm connection, and relatively easy to disassemble and re-connect.

[0022] The utility model discloses beneficial effect:

[0023] 1, drive two fender strips to be close to each other, when both sides fender strips all contact with rectangular plate material, drive the pressing block to go up through the lifting part, make rectangular plate material upper end face close to the limit strip, complete the positioning and fixing of rectangular plate material, and can be applicable to the positioning and fixing of various rectangular plate materials of different thicknesses, and guarantee that the upper end face of the rectangular plate material positioned and fixed is flush with the lower end face of the limit strip, that is, the distance between the upper end face and the laser cutting head after positioning and fixing of rectangular plate materials of different thicknesses is always consistent, and it is unnecessary to adjust the distance between the laser cutting head and the plate material upper end face according to the thickness of the rectangular plate material.

[0024] 2, through the setting of the second sliding groove, cooperate the telescopic air cylinder to drive the pressing block to move up and down, when two fender strips are close to each other, the pressing block is conveniently automatically synchronized to move to the rectangular plate material below;

[0025] 3, through the cooperation setting of screw rod and rotating motor, so as to drive two sides sliding members and fender strips to be close to each other or far away, so as to limit and clamp rectangular plate material. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in embodiment or prior art description, obviously, for ordinary skilled person in the art, without paying creative labor, other drawings can also be obtained according to these drawings.

[0027] Figure 1 It is the overall structure schematic diagram of the utility model;

[0028] Figure 2 It is the schematic diagram of the overall structure of different visual angle of the utility model;

[0029] Figure 3 It is the partial structure schematic diagram of screw rod of the utility model;

[0030] Figure 4 It is the partial structure schematic diagram of sliding member of the utility model. DETAILED DESCRIPTION

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] This combination Figures 1 to 4 This describes an embodiment of a laser-cut workpiece positioning device. Specifically, the laser-cut workpiece positioning device is constructed as a split structure, comprising a fixed plate 100, a first sliding groove 101, a stop bar 200, a limiting bar 300, a sliding member 400, a lifting part 500, a drive assembly, and a pressure block 600. In use, the drive assembly drives the two stop bars 200 to move closer together, and then the rectangular plate to be positioned is placed between the two stop bars 200, such that the upper end face of the rectangular plate is below the limiting bar 300, and both ends of the rectangular plate near the stop bars 200 are placed on the pressure block 600. Then, the two stop bars 200 are driven to move closer to each other. When both stop bars 200 are in contact with the rectangular plate, the lifting part 500 drives the pressure block 600 to move upward, so that the upper end face of the rectangular plate is tightly attached to the limiting strip 300, thus completing the positioning and fixing of the rectangular plate. It can be applied to the positioning and fixing of various rectangular plates with different thicknesses, and ensures that the upper end face of the positioned and fixed rectangular plate is flush with the lower end face of the limiting strip 300. That is, after positioning and fixing rectangular plates of different thicknesses, the distance between the upper end face and the laser cutting head is always consistent, and there is no need to adjust the distance between the laser cutting head and the upper end face of the plate according to the thickness of the rectangular plate.

[0033] Please refer to Figures 1 to 4 A laser-cut workpiece positioning device, comprising a fixing plate 100;

[0034] The upper end of the fixed plate 100 is provided with a horizontally placed first slide groove 101. A pair of symmetrically placed baffles 200 are arranged along the axis of the first slide groove 101 on the upper end of the fixed plate 100. The baffles 200 are both placed perpendicular to the first slide groove 101 and are slidably connected to the upper surface of the fixed plate 100.

[0035] Each of the baffles 200 has a horizontally placed limiting strip 300 fixed at its upper end. The limiting strips 300 are placed coaxially with the baffles 200, and one end of each limiting strip 300 extends horizontally toward the symmetrical plane of the two baffles 200.

[0036] The lower end of each baffle 200 is fixed with a sliding member 400, and the upper end of each sliding member 400 is slidably engaged in the first sliding groove 101. The lower end of the fixed plate 100 is provided with a driving assembly, which is used to drive the two sliding members 400 to move closer or further apart.

[0037] The lifting part 500 is arranged on the sliding part 400, and the pressing block 600 is connected to the upper end of the lifting part 500. The pressing block 600 is located directly below the side limiting strip 300. The lifting part 500 is used to drive the pressing block 600 to move up and down. The pressing block 600 is located between the two blocking strips 200.

[0038] In use, the two blocking strips 200 are driven to move close to each other by the driving assembly. Then, the rectangular plate to be positioned and fixed is placed between the two blocking strips 200, and the upper end surface of the rectangular plate is located below the limiting strip 300. The two ends of the rectangular plate close to the blocking strips 200 are placed above the pressing blocks 600. Then, the two blocking strips 200 are continuously driven to move close to each other. When the two blocking strips 200 are in contact with the rectangular plate, the pressing block 600 is driven to move up by the lifting part 500, so that the upper end surface of the rectangular plate is tightly attached to the limiting strip 300. The positioning and fixing of the rectangular plate are completed. The positioning and fixing can be applied to various rectangular plates with different thicknesses, and the upper end surface of the rectangular plate to be positioned and fixed is flush with the lower end surface of the limiting strip 300. That is, the distance between the upper end surface of the rectangular plate and the laser cutting head is always consistent after the positioning and fixing of the rectangular plate with different thicknesses. It is not necessary to adjust the distance between the laser cutting head and the upper end surface of the plate according to the thickness of the rectangular plate.

[0039] In order to automatically place the two ends of the rectangular plate close to the blocking strips 200 above the pressing blocks 600, a second sliding groove 102 coaxial with the first sliding groove 101 is formed in the fixed plate 100. The pressing block 600 is slidingly connected in the second sliding groove 102. The lifting part 500 can drive the pressing block 600 to move up and down and pass through the second sliding groove 102. When the two blocking strips 200 are driven to move close to each other, the pressing block 600 is driven to move down by the lifting part 500, so that the upper end surface of the pressing block 600 is lower than or equal to the height of the upper end surface of the fixed plate 100. When the two blocking strips 200 move close to the rectangular plate, the pressing block 600 is simultaneously moved to the position directly below the rectangular plate.

[0040] In order to improve the stability of the positioning and fixing of the rectangular plate by the pressing block 600 and the limiting strip 300, the second sliding groove 102 is arranged in two parallel positions. The two second sliding grooves 102 are located at the positions close to the two ends of the blocking strip 200. The pressing block 600 and the lifting part 500 at any limiting strip 300 are correspondingly arranged in two. The two pressing blocks 600 are located in the two second sliding grooves 102. Two pressing blocks 600 are arranged below any limiting strip 300 to improve the stability of the positioning and fixing of the rectangular plate.

[0041] The lifting part 500 includes a vertically arranged telescopic cylinder. The telescopic cylinder is fixedly installed on the sliding part 400. The output end of the telescopic cylinder is fixed to the corresponding pressing block 600. The pressing block 600 is driven to move up and down by the telescopic cylinder.

[0042] Preferably, the lower ends of the sliding members 400 are horizontally extended with bosses for fixing the telescopic air cylinder;

[0043] Preferably, the lifting part 500 can also be selected from electric push rods, linear motors, etc.

[0044] The driving assembly comprises a pair of support plates 701 fixedly connected to the fixed plate 100, and the two support plates 701 are arranged along the axis direction of the first sliding groove 101; the fixed plate 100 is stably supported so as to facilitate the effective movement of the sliding members 400.

[0045] The driving assembly further comprises a screw rod 702 rotatably connected between the two support plates 701, the screw rod 702 is coaxially arranged with the first sliding groove 101, the screw rod 702 is located on the two sides of the symmetric plane of the two blocking strips 200, the screw threads of the screw rod 702 on the two sides are opposite, the screw rod 702 penetrates through the sliding members 400 and is threadedly connected with the sliding members 400; since the upper ends of the sliding members 400 are slidably connected in the first sliding groove 101, the two sliding members 400 can be driven to move close to or away from each other by rotating the screw rod 702.

[0046] A rotating motor 703 is mounted on any one of the support plates 701, and the output end of the rotating motor 703 is connected with the screw rod 702; the rotating motor 703 is turned on so as to automatically drive the screw rod 702 to rotate.

[0047] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] The basic principles, main features and advantages of the present application have been shown and described. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only illustrative of the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A laser cutting workpiece positioning device, comprising a fixed plate (100), characterized in that: a first sliding groove (101) horizontally arranged is formed on the upper end of the fixed plate (100), and a pair of symmetrically arranged blocking strips (200) are arranged on the fixed plate (100) along the axis direction of the first sliding groove (101), the blocking strips (200) are vertically arranged with the first sliding groove (101), and the blocking strips (200) are slidingly connected to the upper end surface of the fixed plate (100); a limiting strip (300) horizontally arranged is fixed to the upper end of each blocking strip (200), the limiting strips (300) are coaxially arranged with the blocking strips (200), and one end of each limiting strip (300) extends horizontally towards the symmetric plane end of the two blocking strips (200); a sliding piece (400) is fixed to the lower end of each blocking strip (200), the upper end of each sliding piece (400) is slidingly connected in the first sliding groove (101), and a driving assembly is arranged at the lower end of the fixed plate (100) to drive the two sliding pieces (400) to move close to or away from each other; an elevating part (500) is arranged on each sliding piece (400), a pressing block (600) is connected to the upper end of each elevating part (500), the pressing blocks (600) are located directly below the corresponding limiting strips (300), the elevating parts (500) are used to drive the pressing blocks (600) to move up and down, and the pressing blocks (600) are located between the two blocking strips (200). A second sliding groove (102) coaxially arranged with the first sliding groove (101) is formed on the fixed plate (100), the pressing blocks (600) are slidingly connected in the second sliding groove (102), and the elevating parts (500) can drive the pressing blocks (600) to move up and down and pass through the second sliding groove (102).

2. The laser-cut part positioning apparatus of claim 1, wherein, The second sliding groove (102) is arranged in two parallel positions, and the two second sliding grooves (102) are located at positions close to the two ends of the blocking strips (200), the pressing blocks (600) and the elevating parts (500) at any limiting strip (300) are correspondingly arranged in two, and the two pressing blocks (600) are located in the two second sliding grooves (102).

3. The laser-cut part positioning apparatus of claim 2, wherein, Each elevating part (500) comprises a vertically arranged telescopic cylinder, the telescopic cylinder is fixedly installed on the sliding piece (400), and the output end of the telescopic cylinder is fixed to the corresponding pressing block (600).

4. The laser-cut part positioning apparatus of claim 3, wherein, The driving assembly comprises a pair of support plates (701) fixedly connected to the fixed plate (100), and the two support plates (701) are arranged along the axis direction of the first sliding groove (101).

5. The laser-cut part positioning apparatus of claim 4, wherein, The driving assembly further comprises a screw rod (702) rotationally connected between the two support plates (701), the screw rod (702) is coaxially arranged with the first sliding groove (101), the screw threads on the two sides of the screw rod (702) located on the symmetric plane of the two blocking strips (200) are opposite in direction, the screw rod (702) passes through the sliding piece (400) and is threadedly connected with the sliding piece (400).

6. The laser-cut part positioning apparatus of claim 5, wherein, A rotating motor (703) is installed on any support plate (701), and the output end of the rotating motor (703) is connected with the screw rod (702).

7. The laser-cut part positioning apparatus of claim 6, wherein, ​

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