A metal sheet grooving machine

Abstract

The present invention relates to the technical field of machine tool manufacturing, and particularly to a grooving machine for metal sheets, which comprises a machine frame, a tool holder and a tool. The tool holder is installed above the machine frame, and the tool is installed on the tool holder. The grooving machine further comprises: a support mechanism and a clamping mechanism. The support mechanism is installed on the machine frame and comprises a plurality of support blocks. The support blocks can move up and down according to the concave and convex conditions of the sheet, adapt to the uneven positions on the surface of the metal sheet, and make the position of the sheet to be processed at the same horizontal plane. The support blocks at the remaining flat parts continue to support the sheet. The clamping mechanism is arranged on the side of the support mechanism, can clamp the sheet, and when the support blocks sink downward, can give the sheet a pulling force to one side to tension the sheet, and give the sheet pulling forces to both sides, so that the tension at the corresponding position of the sheet becomes larger, so as to make the sheet taut and keep horizontal, thereby enabling the grooving depth to be well controlled and avoiding the occurrence of uneven grooving depths.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool manufacturing, in particular to a metal sheet grooving machine. Background Art

[0002] Grooving is an auxiliary process for bending metal or non-metal materials. Special equipment and cutting tools are used to cut a V-shaped groove at the bend line of the metal or non-metal material to facilitate bending and minimize the outer radius of the bend angle. The material is then bent using a press brake or by hand to complete the process and meet the product's appearance requirements. The depth, width, and angle of the V-groove can be guaranteed by the amount of feed and the shape of the planer during the planing process.

[0003] Existing metal sheet grooving machines usually have a horizontal bottom support surface. When grooving some metal sheets that have undergone preliminary processing, especially some metal sheets with uneven surfaces after decorative processes, the raised parts of the sheets will interact with the bottom support surface, making it impossible to clamp the grooved part of the sheet flat, which in turn causes the groove lines to be uneven in depth or distorted, affecting product quality. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] In view of the fact that the above-mentioned existing metal sheet grooving machine is not suitable for metal sheets with protrusions on the surface and the problem that the product quality is poor when processing the metal sheets, the present invention is proposed.

[0006] Therefore, the object of the present invention is to provide a sheet metal router, which is intended to adjust the support surface of the sheet metal router so that it can adapt to a metal sheet with protrusions.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A metal sheet grooving machine includes a frame, a tool holder and a tool, the tool holder is installed above the frame, the tool is installed on the tool holder, and also includes: a supporting mechanism and a clamping mechanism, the supporting mechanism is installed on the frame, including multiple supporting blocks, the supporting blocks can move up and down according to the concave and convex conditions of the plate, so that the positions of the plates to be processed are on the same horizontal plane, the clamping mechanism is arranged on the side of the supporting mechanism, can clamp the plate, and apply a pulling force to one side of the plate to tension the plate when the support block is concave downward.

[0009] As a preferred embodiment of the metal sheet grooving machine of the present invention, the following is provided: an installation groove is formed on the frame, the support block is installed in the installation groove and does not contact the inner wall of the installation groove, the support block is a regular hexagon, arranged in a staggered manner, a telescopic rod is installed at the bottom of the support block, and a support spring is sleeved on the outer side wall of the telescopic rod.

[0010] As a preferred embodiment of the metal sheet grooving machine of the present invention, the following is provided: the clamping mechanism includes an end clamping assembly and a side clamping assembly. The end clamping assembly is arranged at one end of the frame and moves up and down under the drive of a cylinder. The side clamping assembly includes a pressure foot, a return spring and a sliding rod. The bottom of the pressure foot is connected to the sliding rod. One end of the return spring is connected to one side of the sliding rod, and the other end is connected to the inner wall of the frame. The bottom of the sliding rod is an inclined surface.

[0011] As a preferred embodiment of the metal sheet grooving machine of the present invention, the following is provided: overflow grids are respectively formed at positions corresponding to the pressure feet in the installation groove. The overflow grids are filled with magnetorheological fluid. An inclined surface block is arranged at the gap between the frame and the support block. The inclined surface block covers the top of the magnetorheological fluid and includes a sealing part and a matching part. The height of the sealing part is greater than the maximum distance that the inclined surface block can move. The matching part is an inclined surface that matches the bottom of the sliding rod.

[0012] As a preferred embodiment of the metal sheet grooving machine of the present invention, the following is provided: a pneumatic adsorption device is arranged in every two non-adjacent support blocks.

[0013] As a preferred embodiment of the metal sheet grooving machine of the present invention, the following is provided: the pressure foot includes a support layer and a rubber layer. The support layer is a hard metal, and the area of the rubber layer is larger than that of the support layer.

[0014] As a preferred embodiment of the metal sheet grooving machine of the present invention, the following is provided: an installation hole is formed on the frame. The installation hole is communicated with the overflow grid. The sliding rod passes through the installation hole and extends to the overflow grid. Dust-proof plates are arranged on both sides of the sliding rod. The dust-proof plates include an inner dust-proof plate and an outer dust-proof plate. The width of the dust-proof plate is not less than that of the installation hole. One side of the dust-proof plate contacts the sliding rod, and an extrusion spring is arranged on the other side and is connected to the frame through the extrusion spring.

[0015] As a preferred embodiment of the metal sheet grooving machine of the present invention, the following is provided: a cleaning mechanism is arranged on the tool rest. The cleaning mechanism includes an air pipe and a spray nozzle. The spray nozzle faces the cutting edge position of the tool.

[0016] As a preferred embodiment of the metal sheet grooving machine of the present invention, the following is provided: a positioning mechanism is installed on the frame. The positioning mechanism includes a positioning ruler and sliders arranged at both ends of the positioning ruler. Slideways are formed on both sides of the frame. The bottom surface of the positioning ruler can be attached to the support block, and the sliders are slidably connected to the slideways.

[0017] As a preferred embodiment of the metal sheet grooving machine of the present invention, wherein: the positioning ruler is an electromagnet, the side close to the side clamping assembly is low in height, the side far from the side clamping assembly is high in height, and the cross-section is shovel-shaped.

[0018] Advantages of the present invention:

[0019] 1. The support mechanism adapts to the uneven positions on the surface of the metal sheet. The support blocks corresponding to the downward convex parts of the metal sheet move downward, and the support blocks in the remaining flat parts continue to support the sheet. At the positions without the support of the support blocks, the clamping mechanism clamps the sheet and gives the sheet a pulling force to both sides, making the tension of the corresponding position of the sheet larger, so that the sheet is tightened and kept horizontal, thereby enabling good control of the grooving depth and avoiding the occurrence of uneven grooving depths.

[0020] 2. The magnetorheological fluid provides stable support for the support blocks, and uses the fluidity of the magnetorheological fluid in the liquid state to push the inclined block to cooperate with the clamping mechanism, so that the clamping mechanism will also have a certain displacement outward while moving downward, and the sheet is tensioned by friction to keep the flatness of the sheet at the position to be processed and improve the product quality. Description of the drawings

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings. Among them:

[0022] Figure 1 It is a schematic diagram of the overall structure of the metal sheet grooving machine of the present invention.

[0023] Figure 2 It is Figure 1 A cross-sectional view at A of

[0024] Figure 3 It is Figure 2 An enlarged view at B of

[0025] Figure 4 It is a schematic diagram of the position of the clamping structure of the present invention before displacement.

[0026] Figure 5 It is a schematic diagram of the position of the clamping structure of the present invention after displacement.

[0027] Figure 6 It is a cross-sectional view of the limit ruler of the present invention.

[0028] In the figure: 1. Frame; 11. Installation groove; 12. Overflow cell; 13. Magnetorheological fluid; 14. Inclined block; 141. Sealing portion; 142. Fitting portion; 15. Mounting hole; 16. Slideway; 2. Tool rest; 3. Tool; 4. Support mechanism; 41. Support block; 42. Telescopic rod; 43. Support spring; 5. Clamping mechanism; 51. End clamping assembly; 52. Side clamping assembly; 521. Presser foot; 521a. Support layer; 521b. Rubber layer; 522. Return spring; 523. Sliding rod; 524. Dust-proof plate; 524a. Inner dust-proof plate; 524b. Outer dust-proof plate; 524c. Extrusion spring; 6. Cleaning mechanism; 61. Vent pipe; 62. Air nozzle; 7. Positioning mechanism; 71. Positioning ruler; 72. Slide block. Detailed implementation manners

[0029] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following provides a detailed description of the specific implementation manners of the present invention in conjunction with the drawings of the specification.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0031] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that mutually excludes other embodiments.

[0032] Thirdly, the present invention is described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0033] Please refer to Figures 1 to 6 , the present invention provides a grooving machine for metal thin plates, and the technical solution is as follows:

[0034] Refer to Figure 1, a grooving machine for metal sheets, comprising a machine frame 1, a tool holder 2 and a tool 3. The tool holder 2 is installed above the machine frame 1, and the tool 3 is installed on the tool holder 2. It further includes: a support mechanism 4 and a clamping mechanism 5. The support mechanism 4 is installed on the machine frame 1 and includes multiple support blocks 41. The support blocks 41 can move up and down according to the concavity and convexity of the sheet, so that the position of the sheet to be processed is on the same horizontal plane. The clamping mechanism 5 is arranged on the side of the support mechanism 4, can clamp the sheet, and can give a pulling force to the sheet to one side to tension the sheet when the support block 41 sinks downward.

[0035] It mainly relies on the downward movement of the support block 41 to provide a placement space for the convex part of the sheet, and then the clamping mechanism 5 clamps the flat edge part of the sheet to keep the sheet in a flat state.

[0036] Refer to Figure 2 , an installation groove 11 is formed on the machine frame 1. The support block 41 is installed in the installation groove 11 and does not contact the inner wall of the installation groove 11. The support block 41 is a regular hexagon and is arranged in a staggered manner. An expansion rod 42 is installed at the bottom of the support block 41, and a support spring 43 is sleeved on the outer side wall of the expansion rod 42.

[0037] Refer to Figure 2 , the expansion rod 42 and the support spring 43 provide a support force for the support block 41. The expansion rod 42 can control the downward movement of the support block 41, and the support spring 43 can make the support block 41 automatically reset. The support block 41 being set as a regular hexagon can be arranged more closely and can provide stable support for the sheet. At the same time, the staggered regular hexagons can contact two adjacent support blocks 41 at the same edge point, which is more conducive to judging the flatness of the overall support block 41 and facilitating the adjustment of the support block 41 to the same plane.

[0038] Refer to Figures 3 to 5 , the clamping mechanism 5 includes an end clamping component 51 and a side clamping component 52. The end clamping component 51 is arranged at one end of the machine frame 1 and moves up and down driven by a cylinder. The side clamping component 52 includes a pressing foot 521, a return spring 522 and a sliding rod 523. The bottom of the pressing foot 521 is connected to the sliding rod 523. One end of the return spring 522 is connected to one side of the sliding rod 523, and the other end is connected to the inner wall of the machine frame 1. The bottom of the sliding rod 523 is an inclined surface.

[0039] The clamping mechanism 5 can move downward under pneumatic drive to clamp the sheet. The end clamping component 51 can correspond to the position of the tool 3 and clamp both sides of the starting point position of the tool 3 cutting. The side clamping component 52 on the side can clamp the edge close to the side to be processed.

[0040] An air adsorption device is arranged in every two non-adjacent support blocks 41.

[0041] Adsorbing and clamping the other side of the plate through a pneumatic adsorption device can make the whole plate flatter and avoid warping of the plate, which affects the grooving effect.

[0042] Overflow grids 12 are respectively opened at positions corresponding to the pressing feet 521 in the installation grooves 11. Magnetorheological fluid 13 is poured into the overflow grids 12. An inclined plane block 14 is arranged at the gap between the frame 1 and the support block 41. The inclined plane block 14 covers the top of the magnetorheological fluid 13 and includes a sealing part 141 and a matching part 142. The height of the sealing part 141 is greater than the maximum distance that the inclined plane block 14 can move. The matching part 142 is an inclined plane that matches the bottom of the sliding rod 523.

[0043] The overflow grids 12 divide the installation grooves 11 into multiple sections. When the support block 41 moves downward, the liquid level of the magnetorheological fluid 13 inside the corresponding overflow grid 12 can rise significantly, avoiding the situation that the downward movement of a single support block 41 causes too small a change in the liquid level relative to the entire installation groove 11, resulting in an insignificant effect. Moreover, the overflow grids 12 match the side clamping components 51. The change in the liquid level can affect the side clamping components 51 at the corresponding positions, enabling the positions lacking support to tighten the plate by tensioning and clamping, and using the tension of the plate to maintain the flatness of the plate.

[0044] Refer to Figures 4 to 5 , the pressing foot 521 includes a support layer 521a and a rubber layer 521b. The support layer 521a is made of hard metal, and the area of the rubber layer 521b is larger than that of the support layer 521a.

[0045] When processing an uneven plate, some support blocks 41 move downward, squeezing the magnetorheological fluid 13 at the bottom, causing the liquid level of the magnetorheological fluid 13 in the overflow grid 12 to rise and pushing the inclined plane block 14 upward. When the plate needs to be clamped, the pressing foot 521 moves downward. The bottom of the sliding rod 523 matches the matching part 142 of the inclined plane block 14. The matching part 142 gives the sliding rod 523 a lateral force, enabling the pressing foot 521 to move downward and laterally at the same time, clamping the plate and pulling the edge of the plate through friction to make the plate taut and the surface flat.

[0046] Refer to Figures 4 to 5 , installation holes 15 are opened on the frame 1. The installation holes 15 are communicated with the overflow grids 12. The sliding rod 523 passes through the installation holes 15 and extends into the overflow grids 12. Dust-proof plates 524 are arranged on both sides of it. The dust-proof plates 524 include inner dust-proof plates 524a and outer dust-proof plates 524b. The width of the dust-proof plates 524 is not less than that of the installation holes 15. One side of it is in contact with the sliding rod 523, and the other side is provided with a compression spring 524c and is connected to the frame 1 through the compression spring 524c.

[0047] To prevent waste and dust generated during processing from entering the gap between the side clamping assembly 52 and the frame 1 and affecting the clamping effect, a dust-proof plate 524 is provided, which can always be in contact with the sliding rod 523 to block the gap of the mounting hole 15.

[0048] Referring to Figure 1 , a cleaning mechanism 6 is provided on the tool rest 2. The cleaning mechanism 6 includes an air pipe 61 and a nozzle 62, and the nozzle 62 faces the cutting edge of the tool 3.

[0049] Thereby, it is possible to blow away the waste generated after the tool 3 grooves the workpiece, preventing it from affecting subsequent processing on the plate. At the same time, the heat generated during cutting can be carried away by the air flow, accelerating the heat dissipation of the tool 3.

[0050] Referring to Figure 1 [[ID=IS=13]] Figure 1 On the frame 1, a positioning mechanism 7 is installed. The positioning mechanism includes a positioning ruler 71 and sliders 72 provided at both ends of the positioning ruler 71. Slideways 16 are provided on both sides of the frame 1. The bottom surface of the positioning ruler (71) can be in contact with the support block 41, and the slider 72 is slidably connected to the slideway 16.

[0051] The positioning ruler 71 is an electromagnet. The side close to the side clamping assembly 52 is lower in height, and the side far from the side clamping assembly 52 is higher in height, and its cross-section is in the shape of a shovel.

[0052] The height of the support block 41 is detected and controlled by the sliding of the positioning ruler 71. When the height of the support block 41 is relatively low at a local position, the positioning ruler 71 is stopped at the corresponding position for limiting, and the telescopic rod 42 is controlled to extend to adjust the height of the support block 41. During processing, the positioning ruler is placed on one side of the processing table. After the waste is blown away by the cleaning structure, the waste is adsorbed and fixed by magnetic attraction, preventing the waste from scattering onto the support block and the plate and affecting the flatness, and thus affecting the processing quality.

[0053] In summary, when processing uneven plates, it mainly relies on the downward movement of the support blocks 41 to provide space for the raised parts of the plates. Then, the clamping mechanism 5 clamps the flat edge parts of the plates to keep the plates flat. Some of the support blocks 41 move downward, squeezing the magnetorheological fluid 13 at the bottom, causing the liquid level of the magnetorheological fluid 13 in the overflow grid 12 to rise and pushing the inclined block 14 upward. When clamping the plate, the pressing foot 521 moves downward, and the matching part 142 at the bottom of the sliding rod 523 matches the inclined block 14. The matching part 142 gives the sliding rod 523 a lateral force, enabling the pressing foot 521 to move downward and laterally at the same time. While clamping the plate, it pulls the edge of the plate through friction, making the plate taut and the surface flat. The clamping mechanism 5 can move downward under pneumatic drive to clamp the plate. The end clamping assembly 51 can correspond to the position of the tool 3 and clamp both sides of the starting point position of the tool 3 cutting. The side clamping assembly 52 on the side can clamp the edge close to the side to be processed. By adsorbing and clamping the other side of the plate through the pneumatic adsorption device, the whole plate can be made more flat, avoiding the warping of the plate from affecting the grooving effect. The overflow grid 12 divides the installation groove 11 into multiple intervals. When the support block 41 moves downward, the liquid level of the magnetorheological fluid 13 in the corresponding interval of the overflow grid 12 can rise significantly, avoiding the too small liquid level change caused by the downward movement of a single support block 41 relative to the entire installation groove 11, resulting in an insignificant effect. Moreover, the overflow grid 12 matches the side clamping assembly 51, and the change in the liquid level can affect the side clamping assembly 51 at the corresponding position, enabling the lack of support position to tighten the plate through tension clamping and maintaining the flatness of the plate by using the tension of the plate. The waste after the tool 3 grooves is blown away to avoid affecting subsequent processing on the plate. At the same time, the heat generated during the cutting of the tool edge can be taken away by the air flow to accelerate the heat dissipation of the tool 3. The height of the support block 41 is detected and controlled by sliding the positioning ruler 71. When the height of the support block 41 is relatively low at a local position, the positioning ruler 71 is stopped at the corresponding position for limiting, and the telescopic rod 42 is controlled to extend to adjust the height of the support block 41. During processing, the positioning ruler is placed on one side of the processing table. After the waste is blown away by the cleaning structure, the waste is adsorbed and fixed by magnetic attraction to avoid the waste scattered on the support blocks and the plate, affecting the flatness and thus the processing quality.

[0054] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal sheet grooving machine, comprising a frame (1), a tool holder (2) and a tool (3), wherein the tool holder (2) is installed above the frame (1), and the tool (3) is installed on the tool holder (2), characterized in that, It further includes: a support mechanism (4) and a clamping mechanism (5). The support mechanism (4) is installed on the frame (1) and includes a plurality of support blocks (41). The support blocks (41) can move up and down according to the concavo-convex condition of the plate, so that the position of the plate to be processed is on the same horizontal plane. The clamping mechanism (5) is arranged on the side of the support mechanism (4), can clamp the plate, and can give a pulling force to the plate to one side to tension the plate when the support block (41) sinks downward; an installation groove (11) is formed on the frame (1). The clamping mechanism (5) includes an end clamping component (51) and a side clamping component (52). The side clamping component (52) includes a pressure foot (521), a return spring (522) and a sliding rod (523). Overflow grids (12) are respectively formed at positions corresponding to the pressure foot (521) in the installation groove (11). Magnetorheological fluid (13) is filled in the overflow grids (12). An inclined plane block (14) is arranged at the gap between the frame (1) and the support block (41). The inclined plane block (14) covers the top of the magnetorheological fluid (13) and includes a sealing part (141) and a matching part (142). The height of the sealing part (141) is greater than the maximum distance that the inclined plane block (14) can move. The matching part (142) is an inclined plane that matches the bottom of the sliding rod (523); the support block (41) is installed in the installation groove (11) and does not contact the inner wall of the installation groove (11). The bottom of the pressure foot (521) is connected to the sliding rod (523). One end of the return spring (522) is connected to one side of the sliding rod (523), and the other end is connected to the inner wall of the frame (1). The bottom of the sliding rod (523) is an inclined plane.

2. The grooving machine for metal sheet according to claim 1, wherein: The support blocks (41) are regular hexagons and are arranged in a staggered manner. An expansion rod (42) is installed at the bottom of the support block (41), and a support spring (43) is sleeved on the outer side wall of the expansion rod (42).

3. The grooving machine for metal sheets according to claim 2, characterized in that: The end clamping component (51) is arranged at one end of the frame (1) and moves up and down driven by a cylinder.

4. The grooving machine for metal sheet according to claim 3, wherein: A pneumatic adsorption device is arranged in every two non-adjacent support blocks (41).

5. The grooving machine for metal sheet according to claim 4, wherein: The pressure foot (521) includes a support layer (521a) and a rubber layer (521b). The support layer (521a) is made of hard metal, and the area of the rubber layer (521b) is larger than that of the support layer (521a).

6. The metal sheet grooving machine according to claim 5, characterized in that: An installation hole (15) is formed on the frame (1). The installation hole (15) is communicated with the overflow grid (12). The sliding rod (523) passes through the installation hole (15) and extends into the overflow grid (12). Dust-proof plates (524) are arranged on both sides of it. The dust-proof plates (524) include an inner dust-proof plate (524a) and an outer dust-proof plate (524b). The width of the dust-proof plates (524) is not less than that of the installation hole (15). One side of it is in contact with the sliding rod (523), and an extrusion spring (524c) is arranged on the other side and is connected to the frame (1) through the extrusion spring (524c).

7. The grooving machine for metal sheet according to claim 6, characterized in that: A cleaning mechanism (6) is provided on the tool rest (2). The cleaning mechanism (6) includes an air pipe (61) and an air nozzle (62), and the air nozzle (62) faces the edge position of the tool (3).

8. The grooving machine for metal sheet according to claim 7, characterized in that: A positioning mechanism (7) is installed on the machine frame (1). The positioning mechanism includes a positioning ruler (71) and sliders (72) arranged at both ends of the positioning ruler (71). Slideways (16) are formed on both sides of the machine frame (1). The bottom surface of the positioning ruler (71) can be attached to the support block (41), and the sliders (72) are slidably connected to the slideways (16).

9. The grooving machine for metal sheet according to claim 8, characterized in that: The positioning ruler (71) is an electromagnet. The side close to the side clamping assembly (52) is lower in height, and the side far from the side clamping assembly (52) is higher in height, and the cross-section is in the shape of a shovel.

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