Auxiliary clamping and positioning tool for metal plate laser cutting

Abstract

The auxiliary clamping and positioning tool comprises a U-shaped seat, an L-shaped plate and a pressing plate, a vertical plate of the L-shaped plate and an inner side plate of the U-shaped seat are fixed together, a transverse plate of the L-shaped plate is flush with the top of the U-shaped seat, a plurality of through side pressing through holes are formed in an outer side plate of the U-shaped seat, and the pressing plate is arranged in the U-shaped seat. A side pressing nut is fixedly installed on the outer side of each side pressing through hole, a side pressing bolt is installed on each side pressing nut, a side positioning nut is further arranged on the top of the U-shaped base, the size of the pressing plate is the same as that of the transverse plate, and a plurality of sets of pressing bolt holes corresponding in position one to one are formed in the pressing plate and the transverse plate. A pressing bolt penetrates into each set of pressing bolt holes, and a pressing nut of the corresponding specification is installed on the tail portion of the screw rod. Through the mode, the positioning and clamping requirements of various plates with different thicknesses during laser cutting can be met, the number of matched tools is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of precision machining, and particularly to an auxiliary clamping and positioning tooling for laser cutting of metal plates. Background Art

[0002] Laser cutting is a commonly used method for high-precision machining of metal plates at present. Due to the high requirement for the dimensional accuracy of plate machining, special clamps are generally used to clamp the plates on the laser grid during the machining process. In the actual machining process, there are various specifications of plates, some are thicker and some are thinner. Therefore, during machining, on-site personnel need to select different specifications of clamps according to the thickness of the plates each time. There are many clamp specifications, which is troublesome to select and easy to be mixed together, causing great inconvenience. Summary of the Utility Model

[0003] The main technical problem to be solved by the utility model is to provide an auxiliary clamping and positioning tooling for laser cutting of metal plates, which can meet the clamping requirements of plates with various different thicknesses.

[0004] To solve the above technical problem, a technical solution adopted by the utility model is: to provide an auxiliary clamping and positioning tooling for laser cutting of metal plates, the auxiliary positioning tooling includes: a U-shaped seat, an L-shaped plate and a pressing plate. The U-shaped seat and the L-shaped plate have the same dimension as the pressing plate in the length direction. The vertical plate of the L-shaped plate is fixed to the inner side plate of the U-shaped seat. Both the head and the tail ends of the vertical plate are flush with the two ends of the U-shaped seat. The horizontal plate of the L-shaped plate is flush with the top of the U-shaped seat. A plurality of through side pressing through holes are opened on the outer side plate of the U-shaped seat. A side pressing nut is fixedly installed outside each side pressing through hole, and a side pressing bolt of a corresponding specification is installed on each side pressing nut. A side positioning nut is further provided on the top of the U-shaped seat, and a spare bolt is installed on each side positioning nut. The pressing plate has the same dimension as the horizontal plate. A plurality of groups of pressing bolt holes corresponding to each other in position are provided on the pressing plate and the horizontal plate. A pressing bolt is inserted into each group of pressing bolt holes. The screw rod of the pressing bolt continuously passes through the bolt holes on the pressing plate and the horizontal plate, and a pressing nut of a corresponding specification is installed at the tail of the screw rod.

[0005] In a preferred embodiment of the utility model, the plurality of side pressing through holes are symmetrically distributed on the same horizontal line.

[0006] In a preferred embodiment of the utility model, the pressing nut is fixed outside the bolt hole on the horizontal plate.

[0007] In a preferred embodiment of the utility model, the pressing bolt holes on the pressing plate are all on the same straight line, and the straight line is located on the side of the pressing plate close to the U-shaped seat.

[0008] In a preferred embodiment of the present utility model, there are two types of the auxiliary clamping and positioning tooling in total. The positions of the side positioning nuts on the two types of auxiliary clamping and positioning tooling are chiral symmetric and are both located at the ends of the U-shaped seat.

[0009] The beneficial effects of the present utility model are as follows: When the present utility model is actually used, the clamping method can be changed according to needs, so as to meet the clamping requirements of metal plates with various thicknesses from thick to thin on the laser grid, thereby significantly reducing the specifications and quantities of the supporting clamping tooling, facilitating the on-site personnel to select and use, and improving the overall working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a schematic diagram of the clamping structure of a preferred embodiment of the present utility model;

[0011] The markings of the various components in the drawings are as follows:

[0012] 1. U-shaped seat, 2. L-shaped plate, 3. pressing plate, 4. side pressing bolt, 5. side pressing nut, 6. tight pressing bolt, 7. tight pressing nut, 8. side positioning nut, 9. spare bolt, 10. laser grid, 11. plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The following will elaborate on the preferred embodiments of the present utility model in detail with reference to the drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0014] Please refer to Figure 1 , the embodiments of the present utility model include:

[0015] An auxiliary clamping and positioning tooling for laser cutting of metal sheets. The auxiliary positioning tooling includes: a U-shaped seat 1, an L-shaped plate 2, and a pressing plate 3. The U-shaped seat 1 and the L-shaped plate 2 have the same dimension as the pressing plate 3 in the length direction. The vertical plate of the L-shaped plate 2 is fixed to the inner side plate of the U-shaped seat 1. The head and tail ends of the vertical plate are flush with the two ends of the U-shaped seat 1. The horizontal plate of the L-shaped plate 2 is flush with the top of the U-shaped seat 1. Two through side pressing through holes are opened on the outer side plate of the U-shaped seat 1. The two side pressing through holes are symmetrically distributed about the midline on the same horizontal line. A side pressing nut 5 is welded and installed outside each side pressing through hole. A side pressing bolt 4 of a corresponding specification is installed on each side pressing nut 5. A side positioning nut 8 is also welded on the top of the U-shaped seat 1. A spare bolt 9 is installed on each side positioning nut 8. The pressing plate 3 has the same dimension as the horizontal plate. Two groups of pressing bolt holes corresponding to each other in position are provided on the pressing plate 3 and the horizontal plate. A pressing bolt 6 is inserted into each group of pressing bolt holes. The screw of the pressing bolt 6 continuously passes through the pressing bolt holes on the pressing plate 3 and the horizontal plate and then enters the pressing nut 7 outside the bolt hole welded on the horizontal plate. In this way, when pressing, only need to tighten the pressing bolt 6 from above, without tightening the pressing nut 7 from below every time.

[0016] The pressing bolt holes on the pressing plate 3 are all on the same straight line, and the straight line is located on the side of the pressing plate 3 close to the U-shaped seat 1. In this way, when pressing the pressing plate 3, the contact area between the pressing plate 3 and the sheet 11 is larger, and the pressing effect is better.

[0017] There are two types of the auxiliary clamping and positioning tooling. The positions of the side positioning nuts 8 on the two types of auxiliary clamping and positioning tooling are chirally symmetric and are both located at the ends of the U-shaped seat 1. Welding the side positioning nuts 8 on the ends of the U-shaped seat 1 in a chirally symmetric manner is to facilitate using the top of the U-shaped seat 1 to support the bottom surface of the thicker sheet 11 when clamping the sheet 11 from both sides, so that the clamping is more stable.

[0018] This embodiment is mainly used to clamp the metal sheet 11 during laser cutting. In actual use, if the sheet 11 is relatively thin, first, the U-shaped seats 1 of the four auxiliary clamping and positioning toolings are respectively clamped on two laser gratings 10, with two clamped on each laser grating 10. Since the tops of the laser gratings 10 are all on the same plane, after clamping, the tops of all the auxiliary clamping and positioning toolings are on the same plane. Adjust the relative positions between the laser gratings 10 and the relative positions between the auxiliary clamping and positioning toolings, so that the four corners of the pre-processed sheet 11 are respectively placed on the horizontal plates of the corresponding L-shaped plates 2. Then, first tighten the side pressing bolts 5 outside each U-shaped seat 1 to make the side pressing bolts 5 press against the laser gratings 10. Then, tighten the pressing bolts 6 on the auxiliary clamping and positioning toolings respectively to drive the pressing plate 3 to press down to fix the sheet 11 from the four corners.

[0019] In actual use, if the plate 11 is relatively thick, first, the U-shaped seats 1 of the four auxiliary clamping and positioning toolings are respectively clamped on the two laser gratings 10, with two clamped on each laser grating 10, and the two are chirally symmetric and the side positioning nuts 8 are both on the outside. Since the tops of the laser gratings 10 are all on the same plane, after clamping, the tops of all the auxiliary clamping and positioning toolings are on the same plane. Then, remove the pressing plates 3 and the tightening bolts 6 on all the L-shaped plates 2. Then, adjust the relative positions between the laser gratings 10 and the relative positions between the auxiliary clamping and positioning toolings so that the four corners of the pre-processed plate 11 are respectively placed on the tops of the corresponding U-shaped seats 1. Then, first tighten the side pressing bolts 4 on the outside of each U-shaped seat 1 so that the side pressing bolts 4 tightly press against the laser gratings 10. Then, screw the spare bolts 9 inward from the outside of the four side positioning nuts 8 so that the spare bolts 9 all tightly press against the outside of the plate 11 to complete the clamping and fixing.

[0020] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. An auxiliary clamping and positioning tooling for laser cutting of metal sheets, characterized in that, The auxiliary clamping and positioning tooling includes: a U-shaped seat, an L-shaped plate and a pressing plate. The U-shaped seat and the L-shaped plate have the same dimension as the pressing plate in the length direction. The vertical plate of the L-shaped plate is fixed to the inner side plate of the U-shaped seat. The head and tail ends of the vertical plate are flush with the two ends of the U-shaped seat. The horizontal plate of the L-shaped plate is flush with the top of the U-shaped seat. A plurality of through side pressing through holes are formed in the outer side plate of the U-shaped seat. A side pressing nut is fixedly installed outside each side pressing through hole. A side pressing bolt of a corresponding specification is installed on each side pressing nut. A side positioning nut is further provided on the top of the U-shaped seat. A spare bolt is installed on each side positioning nut. The pressing plate has the same dimension as the horizontal plate. A plurality of groups of pressing bolt holes corresponding to each other in position are provided on the pressing plate and the horizontal plate. A pressing bolt is inserted into each group of pressing bolt holes. The screw rod of the pressing bolt continuously passes through the bolt holes on the pressing plate and the horizontal plate. A pressing nut of a corresponding specification is installed at the tail of the screw rod.

2. The auxiliary clamping and positioning tooling for laser cutting of metal sheets according to claim 1, wherein The plurality of side pressing through holes are symmetrically distributed on the same horizontal line.

3. The auxiliary clamping and positioning tooling for laser cutting of metal sheets according to claim 1, characterized in that, The pressing nut is fixed outside the bolt hole on the horizontal plate.

4. The auxiliary clamping and positioning tooling for laser cutting of metal sheets according to claim 1, characterized in that, The pressing bolt holes on the pressing plate are all on the same straight line, and the straight line is located on the side of the pressing plate close to the U-shaped seat.

5. The auxiliary clamping and positioning tooling for laser cutting of metal sheets according to claim 1, wherein, There are two types of the auxiliary clamping and positioning tooling. The positions of the side positioning nuts on the two types of auxiliary clamping and positioning tooling are chirally symmetric and are both located at the ends of the U-shaped seat.

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