Clamping and positioning device for laser engraving

Abstract

The utility model discloses a clamping positioning device for laser engraving, which comprises a base plate, a plurality of groups of clamping mechanisms and a driving piece, each clamping mechanism comprises a fixed part and a movable part, the fixed part is fixed on the base plate, the driving piece drives the movable part to move on the base plate relative to the fixed part, and the movable part is driven by the driving piece to move on the base plate relative to the fixed part. The fixed part and the movable part are respectively provided with a corresponding clamping part, the clamping parts are used for clamping and positioning a workpiece, each clamping part comprises a clamping groove, the workpiece is clamped in the clamping groove, the clamping parts of the fixed part and the movable part are symmetrically arranged, each clamping part further comprises a clamping surface, and the clamping surfaces are arranged on the fixed part and the movable part. The clamping groove is formed in the clamping face, and the workpiece is clamped on the clamping face. The laser engraving clamp can meet the clamping and positioning requirements of workpieces with different sizes and batch workpieces, can control the clamping force, ensures the positioning accuracy, and improves the laser engraving efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of laser engraving, and particularly relates to a clamping and positioning device for laser engraving. Background Art

[0002] Existing high-precision laser engraving machines can precisely control the power, speed, and engraving path of the laser beam, so that patterns or texts can be engraved on workpieces (such as the body of a water bottle or a kettle) by using laser engraving technology. When laser engraving a workpiece, it is necessary to clamp and position the workpiece to keep it stable during the engraving process without moving or tilting, so as to improve the quality of laser engraving. Existing clamping and positioning jigs for laser engraving, especially those for workpieces with a circular arc-shaped main body, have a single function, cannot laser engrave multiple workpieces in one batch, and cannot meet the clamping and positioning requirements of workpieces of different sizes. Moreover, the clamping force of the clamping space cannot be controlled, making it difficult to ensure the positioning accuracy during engraving and the consistency of batch workpiece positioning, which affects the production efficiency and quality of products. Summary of the Utility Model

[0003] In order to solve at least one of the problems mentioned in the above background art, the utility model provides a clamping and positioning device for laser engraving, which can meet the clamping and positioning of workpieces of different sizes and batch workpieces, and at the same time can control the clamping force, ensure the positioning accuracy, and improve the laser engraving efficiency.

[0004] The specific technical solution provided by the utility model is as follows:

[0005] Provide a clamping and positioning device for laser engraving, including a substrate, multiple groups of clamping mechanisms, and a driving member. The clamping mechanism includes a fixed part and a movable part. The fixed part is fixed on the substrate, and the driving member drives the movable part to move relative to the fixed part on the substrate. Corresponding clamping parts are provided on both the fixed part and the movable part, and the clamping parts are used for clamping and positioning the workpiece.

[0006] As a preference of the above solution, the clamping part includes a clamping groove, and the workpiece is clamped in the clamping groove.

[0007] As a preference of the above solution, the clamping parts of the fixed part and the movable part are symmetrically arranged. The clamping part further includes a clamping surface, the clamping groove is arranged on the clamping surface, and the workpiece is clamped on the clamping surface.

[0008] As a preference of the above solution, the clamping surface is an arc surface, the clamping groove is an arc groove, the arc surfaces of the fixed part and the movable part form a U-shaped groove, and the bottoms of the arc grooves of the fixed part and the movable part are concentric circular arcs.

[0009] As a preference of the above solution, the driving member includes a rotating lead screw, and the rotating lead screw is threadedly connected to the movable part.

[0010] As a preference of the above solution, the rotating lead screw passes through the fixed part and can rotate on the fixed part.

[0011] As a preference of the above solution, the rotating lead screws are arranged on both sides of the clamping part, and the rotating lead screws are sequentially screwed to a plurality of the movable parts and sequentially pass through a plurality of the fixed parts.

[0012] As a preference of the above solution, a first guiding part is arranged on the substrate, a second guiding part is arranged on the movable part, and the first guiding part and the second guiding part cooperate to guide the moving position of the movable part.

[0013] As a preference of the above solution, one of the first guiding part and the second guiding part is a convex block, and the other is a guiding groove, and the convex block is inserted into the guiding groove.

[0014] As a preference of the above solution, the rotating lead screw and a guiding rod are respectively arranged on both sides of the clamping part, the rotating lead screw is sequentially screwed to a plurality of the movable parts and sequentially pass through a plurality of the fixed parts, and the guiding rod sequentially passes through a plurality of the movable parts and a plurality of the fixed parts.

[0015] With the above technical solution, the utility model can meet the clamping and positioning of a batch of workpieces by arranging multiple groups of clamping mechanisms. The driving member drives the movable part to move relative to the fixed part, and the clamping parts on the fixed part and the movable part clamp and position the workpiece, so that the clamping and positioning of workpieces with different sizes can be satisfied. At the same time, the clamping force can be controlled by the movement of the movable part, ensuring the positioning accuracy and improving the laser engraving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is Figure 1 a top view structural diagram of

[0019] Figure 3 is Figure 1 a side view structural diagram of Detailed implementation mode

[0020] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] As described in the background art, the existing clamping and positioning fixtures for laser engraving, especially those for workpieces with a circular arc-shaped main body, have a single function, cannot perform laser engraving on multiple workpieces in one batch, cannot meet the clamping and positioning requirements of workpieces of different sizes, and the clamping force of the clamping space cannot be controlled, making it difficult to ensure the positioning accuracy during engraving and the consistency of batch workpiece positioning, thus affecting the production efficiency and quality of the product. The clamping and positioning device of the present utility model can meet the clamping and positioning of workpieces of different sizes and batch workpieces, and at the same time can control the clamping force, ensure the positioning accuracy, and improve the laser engraving efficiency. The embodiments of the present utility model will be elaborated in detail below.

[0022] As Figures 1 to 3 shown, a clamping and positioning device for laser engraving according to the present utility model includes a substrate 1, a plurality of groups of clamping mechanisms 2 and a driving member 3. The clamping mechanism 2 includes a fixed part 21 and a movable part 22. The fixed part 21 is fixed on the substrate 1, and the driving member 3 drives the movable part 22 to move relative to the fixed part 21 on the substrate 1. Corresponding clamping parts are provided on both the fixed part 21 and the movable part 22, and the clamping parts are used for clamping and positioning the workpiece.

[0023] The clamping part includes a clamping groove 23, and the workpiece is clamped within the clamping groove 23. The clamping parts of the fixed part 21 and the movable part 22 are symmetrically arranged. The clamping part further includes a clamping surface 24, and the clamping groove 23 is arranged on the clamping surface 24, and the workpiece is clamped on the clamping surface 24. In this embodiment, the fixed part 21 is a fixed block, the movable part 22 is a movable block, the clamping surface 24 is an arc surface, the clamping groove 23 is an arc groove, the arc surfaces and arc grooves of the fixed part 21 and the movable part 22 are arranged oppositely, and the arc surfaces form a U-shaped groove 25 when the fixed part 21 and the movable part 22 are combined. The fixed part 21 and the movable part 22 are provided with cutting surfaces 26 connected to the arc surfaces and arc grooves, and the cutting surfaces 26 are located on the left and right sides of the arc groove. When clamping the workpiece, the cutting surfaces 26 of the fixed part 21 and the movable part 22 are spaced relatively or closely fitted. The bottoms of the arc grooves of the fixed part 21 and the movable part 22 are concentric arcs 27, and the arc grooves are U-shaped when viewed from above. The arc surface and the arc groove are suitable for clamping and positioning circular arc workpieces such as water bottles and kettles. When clamping, the arc surface clamps the body of the water bottle or the kettle, and the arc groove clamps the bottom of the water bottle or the kettle. In other embodiments, the clamping surface 24 or the clamping groove 23 can be set to other shapes adapted to the workpiece, such as square, polygon, etc.

[0024] The driving member 3 includes a rotating lead screw 3, and the rotating lead screw 3 is threadedly connected to the movable part 22. The rotating lead screw 3 passes through the fixed part 21 and can rotate on the fixed part 21. In this embodiment, the rotating lead screws 3 are provided on both sides of the clamping part. A handle 31 is provided on the rotating lead screw 3 for manual rotation. In other embodiments, the rotating lead screw 3 can be connected to a power member such as a motor and driven to rotate by the power member. The rotating lead screw 3 is sequentially screwed to a plurality of the movable parts 22 and sequentially passes through a plurality of the fixed parts 21. The substrate 1 is provided with a first guiding part (not shown), and the movable part 22 is provided with a second guiding part (not shown). The first guiding part and the second guiding part cooperate to guide the moving position of the movable part 22. One of the first guiding part and the second guiding part is a convex block, and the other is a guiding groove, and the convex block is inserted into the guiding groove. In this embodiment, the substrate 1 is provided with a guiding groove, and the bottom of the movable part 22 is provided with a convex block. When the movable part 22 moves, the convex block moves along the guiding groove to guide the position of the movable part 22. In other embodiments, it can be that the rotating lead screws 3 and guiding rods (not shown) are respectively provided on both sides of the clamping part. The rotating lead screw 3 is sequentially screwed to a plurality of the movable parts 22 and sequentially passes through a plurality of the fixed parts 21, and the guiding rods sequentially pass through a plurality of the movable parts 22 and a plurality of the fixed parts 21.

[0025] In this embodiment, four sets of clamping mechanisms 2 are provided on the substrate 1. In other embodiments, two, three, five or more sets of clamping mechanisms 2 can be provided. The clamping mechanisms 2 are connected in series on the rotating lead screw 3, which can improve the consistency of batch positioning of workpieces. There are two rotating lead screws 3 on the left and right sides of the clamping mechanism 2. The rotating lead screw 3 passes through the section, and the rotating lead screw 3 has a clearance fit with the substrate 1. When clamping, the workpiece is located between the two rotating lead screws 3. The rotating lead screw 3, the clamping mechanism 2 and the substrate 1 form a workpiece positioning group 4. One or more sets of workpiece positioning groups 4 are arranged on the bottom plate 5. The substrate 1 is fixedly connected or detachably connected to the bottom plate 5 to improve the flexibility of replacing the workpiece positioning group 4. When laser engraving is required, the workpiece is placed on the clamping part of the fixing part 21, and then the rotating lead screw 3 is rotated simultaneously to drive the movable part 22 to move along the rotating lead screw 3 and move towards the fixing part 21, so as to clamp the workpiece through the clamping part, thereby satisfying the clamping and positioning of batch workpieces, and can also adapt to workpieces of different sizes. The clamping force can also be controlled by the movement of the movable part 22 to ensure the positioning accuracy and improve the laser engraving efficiency.

[0026] Although the preferred embodiments in the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present invention.

[0027] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A clamping and positioning device for laser engraving, characterized in that: It includes a base plate, multiple groups of clamping mechanisms and a driving member, the clamping mechanism includes a fixed part and a movable part, the fixed part is fixed on the base plate, the driving member drives the movable part to move on the base plate relative to the fixed part, the fixed part and the movable part are both provided with corresponding clamping parts, and the clamping parts are used to clamp and position the workpiece.

2. The clamping and positioning device for laser engraving according to claim 1, characterized in that: The clamping portion includes a clamping groove, and the workpiece is clamped in the clamping groove.

3. The clamping and positioning device for laser engraving according to claim 2, characterized in that: The clamping parts of the fixed part and the movable part are symmetrically arranged, and the clamping parts further include a clamping surface, the clamping groove is arranged on the clamping surface, and the workpiece is clamped on the clamping surface.

4. The clamping and positioning device for laser engraving according to claim 3, characterized in that: The clamping surface is an arcuate surface, the clamping groove is an arcuate groove, the arcuate surfaces of the fixed part and the movable part form a U-shaped groove, and the bottoms of the arcuate grooves of the fixed part and the movable part are concentric arcs.

5. The clamping and positioning device for laser engraving according to claim 1, characterized in that: The driving member comprises a rotating screw, and the rotating screw is threadedly connected to the movable part.

6. The clamping and positioning device for laser engraving according to claim 5, characterized in that: The rotating screw passes through the fixing portion and is rotatable on the fixing portion.

7. The clamping and positioning device for laser engraving according to claim 6, characterized in that: The rotating screw rods are arranged on both sides of the clamping part. The rotating screw rods are screwed to the plurality of movable parts in sequence and pass through the plurality of fixed parts in sequence.

8. The clamping and positioning device for laser engraving according to claim 7, characterized in that: The base plate is provided with a first guide portion, the movable portion is provided with a second guide portion, and the first guide portion and the second guide portion cooperate to guide the moving position of the movable portion.

9. The clamping and positioning device for laser engraving according to claim 8, characterized in that: One of the first guide part and the second guide part is a protruding block, and the other is a guiding groove, and the protruding block is inserted into the guiding groove.

10. The clamping and positioning device for laser engraving according to claim 6, characterized in that: The rotating screw and the guide rod are respectively arranged on both sides of the clamping part. The rotating screw is screwed to the plurality of movable parts in sequence and passes through the plurality of fixed parts in sequence. The guide rod passes through the plurality of movable parts and the plurality of fixed parts in sequence.

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