Plate dadoing machine and dadoing process

Abstract

The invention discloses a plate recessing machine which is provided with a base and a cross beam fixed above the base, a tool rest assembly capable of horizontally moving along the X axis is arranged on the cross beam, a tool at the bottom of the tool rest assembly can ascend, descend and rotate, a workbench capable of moving along the Y axis is arranged below the tool rest assembly and at the top of the base, and a plurality of pressing assemblies arranged in parallel in the X direction are arranged above the workbench. At least one pressing assembly can move back and forth along the Y axis, and each pressing assembly comprises pressing supports symmetrically arranged on the two sides of the workbench, a pressing beam arranged between the pressing supports in a lifting mode and a pressing foot located at the bottom of the pressing beam. The whole presser foot can be pressed in a plate, a cutter moves along the edge of the outer side of the plate to overcome mechanism interference and minimum edge limitation, the cutter rest assembly can complete machining of two sets of notches in the edges of the two opposite sides of the plate in the process of moving back and forth on the X axis, and after an operator fixes the plate, the plate only needs to be additionally rotated one time, and machining efficiency is greatly improved. Four edges of the plate can be machined, and the working efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and in particular to a sheet grooving machine and a grooving process. Background Art

[0002] Grooving machines are widely used in the sheet metal processing industry. For example, in the processing of cabinet doors, three parallel grooves need to be grooved on the edge of a rectangular sheet. The distance from the outermost groove to the edge of the sheet is small. After the sheet is bent 90° along the groove, a groove in the shape of an "L" is formed, and a honeycomb board or the like is inserted therein. After grooving and bending, the sheet has a small bending radius and a small stress diffusion range, and the folded part has straight edges and is more beautiful. A grooving machine usually presses and fixes the sheet by a pressure foot, and uses the frictional force to balance the thrust of the tool during grooving processing. A tool provided above the sheet processes the sheet.

[0003] The existing conventional grooving machines have the following technical problems: (1) Small-sized sheets are not fixed firmly: The working table surface of the existing grooving machine is large, and the pressure feet for pressing the material are all arranged on the edge of the sheet and there are many of them, which is not suitable for grooving small-sized sheets. If the sheet is too small, the pressure applied to it is small, and thus the frictional force is small. When the frictional force is less than the grooving processing thrust, the sheet will displace. (2) The processing range of the sheet is limited and there is a minimum edge limit: Since the pressure feet are arranged on the edge of the sheet, when the pressure feet are pressed, they will occupy a part of the area of the sheet edge, and the tool rest assembly also has a certain thickness, which makes the tip of the tool on the tool rest assembly have an unprocessable area at a certain distance from the sheet edge during grooving. The industry usually calls this distance the minimum edge. The minimum edge of the existing grooving machines for processing sheets is greater than 10 mm, which cannot meet the market demand, especially in industries such as cabinet doors where the sheet size is small and a short minimum edge is required. (3) The processing efficiency is relatively low: For a rectangular sheet, grooves need to be grooved on all four sides. However, the existing grooving machines can only process one side of the sheet at a time after being pressed, and the operator needs to manually rotate the sheet to change the side before continuing to process the next side. That is, to complete the grooving of one sheet, the operator needs to manually rotate it 3 times additionally, and the processing efficiency is low. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing grooving machines, such as the inability to reduce the minimum edge due to the layout of the pressure feet and the volume of the tool rest assembly, the inability to adapt to various processing scenarios, especially the inability to process small-sized sheets, the cumbersome operation during side-changing processing, and the relatively low processing efficiency, the applicant provides a sheet grooving machine with a reasonable structure. By changing the shape and layout of the pressure feet and cooperating with a movable processing table, the grooving machine can process sheets of various specifications and sizes, and there is no minimum edge limit. For the grooving process using this grooving machine, after feeding, it only needs to be manually rotated 1 time additionally, and the processing efficiency is high.

[0005] The technical solution adopted by the present invention and its beneficial effects are as follows: A plate grooving machine has a base and a cross beam fixed above the base. A tool holder assembly that can move horizontally along the X-axis is provided on the cross beam. The cutting tool at its bottom can be lifted and rotated. Below the tool holder assembly and on the top of the base, a workbench that can move along the Y-axis is provided. Above the workbench, several pressing components arranged in parallel along the X-direction are provided. At least one group of pressing components can move back and forth along the Y-axis. The pressing component includes pressing supports symmetrically arranged on both sides of the workbench, a pressing beam that can be lifted and arranged between them, and a pressing foot located at the bottom of the pressing beam. Moving the workbench can make the plate pressed by the pressing foot on it reach below the cutting tool of the tool holder assembly, and grooving processing is carried out using the cutting tool.

[0006] The pressing feet are symmetrically arranged and extend outwards to the outer sides opposite to the two pressing beams. When the pressing feet press the plate, the entire pressing foot presses inside the plate. When the cutting tool runs along the outer edge of the plate, it can overcome mechanism interference and minimum edge limitation. The minimum edge can be zero. During a round trip movement of the tool holder assembly along the X-axis, the processing of two groups of notches on the opposite sides of the plate can be completed. After the operator fixes the plate, only one additional rotation of the plate is required to complete the processing of the four sides of the plate, and the working efficiency is relatively high.

[0007] As a further improvement of the above technical solution: The pressing feet are continuous and without notches, and their length is equivalent to the distance between the two pressing supports; the pressing feet of the frontmost and rearmost groups of pressing components are symmetrically arranged and extend to the outer sides opposite to the pressing beam. The pressing feet can completely cover and stably press various sizes and types of plates, such as small-sized plates, plates with notches, etc., with relatively high flexibility, avoiding the phenomenon of displacement during planing processing due to insufficient friction of the plate. When the pressing feet press the plate, they are located in the center of the sheet material, will not block the moving stroke of the tool assembly, and there is no minimum edge limitation.

[0008] The middle part of the pressing support has a through hole, and an oil cylinder is installed at the top. The two ends of the pressing beam are inserted into the through hole and are driven by the piston rod of the oil cylinder to lift.

[0009] Second Y-axis moving devices are arranged on the left and right sides of the workbench. At least one group of pressing components can move back and forth through the second Y-axis moving device.

[0010] Two groups of pressing components are provided above the workbench, one of which is fixed and the other can move back and forth along the second Y-axis moving device.

[0011] The bottom of the pressing support of the fixed pressing component is fixed to the workbench, and the bottom of the pressing support of the movable pressing component has a groove that matches the second Y-axis moving device, so that the position of the pressing component can be moved according to the change of the plate size.

[0012] There is a spring seat on the outside of the blank holder bracket and below the blank holder beam.

[0013] The tool magazine of the tool rest assembly can rotate 180°.

[0014] The tool magazine is provided with multiple longitudinal and transverse tool positions, and the cutting edges of the tools in the tool positions are all in the same direction.

[0015] The blank holder assembly can move and adjust its position according to the size of the sheet. Move the workbench so that the edge of the sheet to be processed is located below the tool rest assembly. After clicking the start button on the operation panel, the blank holder beam presses down synchronously, and the pressure feet press the opposite two side edges of the sheet. The workbench moves backward until the front edge of the sheet is positioned below the tool. After the tool rest assembly descends, it moves horizontally to the other end of the sheet grooving machine. During the process, the tool performs horizontal grooving on the sheet along the edge of the pressure foot. The workbench moves forward until the rear edge of the sheet is positioned below the tool. The tool rotates 180°, and the tool rest assembly returns horizontally to the initial position. Grooving can be performed on the opposite sides of the sheet. That is, during a round trip movement of the tool rest assembly on the X-axis, two sets of notches on the opposite two side edges of the sheet can be processed. The processing efficiency is high. By adjusting the tool arrangement and the installation depth, notches with different widths and depths can be processed at one time.

[0016] The grooving process using the sheet grooving machine includes the following steps: S1. Move the blank holder assembly according to the size of the sheet on the workbench. The blank holder beams and pressure feet of the frontmost and rearmost groups of blank holder assemblies descend, and the pressure feet press the opposite two side edges of the sheet; S2. Move the workbench until the front edge of the sheet is positioned below the tool. The tool rest assembly descends and moves from one end of the initial position to the other end of the sheet grooving machine. The tool moves along the outside of the pressure foot and grooves the front edge of the sheet; S3. Move the workbench until the rear edge of the sheet is positioned below the tool. The tool rotates 180°, and the tool rest assembly returns to one end of the initial position. The tool moves along the outside of the pressure foot and grooves the rear edge of the sheet; S4. The blank holder beams and pressure feet of the blank holder assembly lift and release the sheet. After rotating the sheet 90°, repeat the above steps S1 - S3 until the grooving of the remaining two side edges is completed.

[0017] By changing the shape and layout of the pressure feet and cooperating with the movable processing table, the grooving machine can process sheets of various specifications and sizes without a minimum side limit. For the grooving process using this grooving machine, only one additional manual rotation is required after feeding, and the processing efficiency is high. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the present invention.

[0019] Figure 2 It is a left view of the present invention.

[0020] Figure 3 It is a schematic structural view of the tool rest assembly.

[0021] Figure 4 It is a bottom view of the tool rest assembly.

[0022] Figure 5 It is a schematic structural view of the pressure-feeding assembly.

[0023] Figure 6 It is a top view of the pressure-feeding assembly.

[0024] Figure 7 It is a front view of the pressure-feeding assembly.

[0025] In the figure: 1. Base; 2. Cross beam; 3. Tool rest assembly; 31. Tool magazine; 32. Tool; 33. X-axis moving device; 34. Z-axis lifting device; 35. Rotating device; 4. Workbench; 41. First Y-axis moving device; 5. Pressure-feeding assembly; 51. Pressure-feeding support; 511. Groove; 512. Opening; 52. Pressure-feeding beam; 53. Pressure foot; 54. Oil cylinder; 55. Spring seat; 56. Second Y-axis moving device. Specific embodiments

[0026] The following combines with the attached drawings to illustrate the specific embodiments of the present invention.

[0027] As Figure 1 、 2 shown, in the present invention, the left-right direction of the plate grooving machine is the X-axis, the front-back direction is the Y-axis, and the vertical direction is the Z-axis. The plate grooving machine of the present invention adopts a gantry frame structure, including a base 1 in a cross shape, a cross beam 2 fixed above the horizontal part of the base 1. The cross beam 2 is provided with a tool rest assembly 3, the back of which is connected to the cross beam 2 through an X-axis moving device 33. The tool rest assembly 3 has a Z-axis lifting device 34 and a rotating device 35, so that the tool rest assembly 3 can rotate, move left and right along the X-axis, and lift up and down along the Z-axis. In this embodiment, the tool rest assembly 3 can rotate 180°, and can realize forward and reverse two-way grooving processing. Below the tool rest assembly 3 is a workbench 4, which is movably arranged on the top surface of the base 1 through a first Y-axis moving device 41. In this embodiment, the first Y-axis moving device 41 is a mutually cooperating slider and slide rail, and the two slide rails are respectively located on the top surface of the base 1 and perpendicular to the cross beam 2, and the two sliders are correspondingly fixed at the bottom of the workbench 4.

[0028] As Figure 1 、 Figures 5-7As shown in the figure, two sets of blank holding components 5 are provided above the workbench 4. The blank holding components 5 move together with the workbench 4. Each blank holding component 5 includes two blank holding brackets 51 symmetrically arranged on both sides of the workbench 4, a blank holding beam 52 that is vertically movable between the two brackets, and a pressure foot 53 located at the bottom of the blank holding beam 52. The two blank holding beams 52 are parallel to each other. The pressure feet 53 are symmetrically arranged and extend outward to the opposite outer sides of the two blank holding beams 52. When the pressure feet 53 press on the plate, the entire pressure feet 53 press inside the plate. The cutter 32 runs along the outer edge of the plate, which can overcome mechanism interference and the minimum edge limit. Theoretically, the minimum edge can be zero, that is, chamfering the plate. At the same time, the pressure feet 53 are continuous without gaps, and their length is equivalent to the distance between the two blank holding brackets 51. For example, for the processing of box body sheet metal, there are gaps at the corners after unfolding. The pressure feet 53 of conventional general grooving machines often cannot cover this area, and there is often a phenomenon of knocking the plate flying during planing. Since the bottom surface of the pressure feet 53 of the present invention is a continuous plane, it can completely cover various plates and can completely cover the plates with gaps, especially suitable for clamping and fixing small-shaped materials, and there is no possibility of hitting the plate. The middle part of the blank holding bracket 51 has a square through hole 512, and an oil cylinder 54 is installed at the top. The two ends of the blank holding beam 52 are inserted into the through hole 512 and are driven to move up and down by the piston rod of the oil cylinder 54. Outside the blank holding bracket 51 and below the blank holding beam 52, there is a spring seat 55. The other end of the spring (not shown in the figure) in the spring seat 55 is installed in the corresponding hole of the blank holding beam 52. The spring ensures that the blank holding beam 52 remains in the lifted position without pressure, which is beneficial for loading and unloading the plate. At least one set of blank holding components 5 can move back and forth along the Y-axis through the second Y-axis moving device 56. In this embodiment, one set of blank holding components 5 is fixed and the other set can move back and forth along the Y-axis. The second Y-axis moving device 56 is a slide rail. The bottom of the blank holding bracket 51 of the fixed blank holding component 5 is fixed to the workbench 4, and the bottom of the blank holding bracket 51 of the movable blank holding component 5 has a groove 511 that cooperates with the slide rail to move, so that it can move with the change of the plate size.

[0029] As Figures 1-4 As shown in the figure, the bottom of the tool rest assembly 3 has a tool magazine 31 connected to the rotating device 35. The tool magazine 31 is provided with a plurality of longitudinal and transverse tool positions, which can respectively achieve one-slot layer processing and multi-slot processing at one time. Each tool position is provided with a cutter 32. In this embodiment, three rows of cutters 32 are provided, and the cutting edges are all in the same direction. The cutter 32 can plane a groove opening horizontal to the length direction of the pressure foot 53.

[0030] During actual use, in the initial state, the tool rest assembly 3 is located at one end of the plate grooving machine, the workbench 4 stops at the foremost end of the base 1, both groups of pressing beams 52 are lifted. Move the pressing component 5 back and forth according to the size of the plate. The operator inserts the plate through the gap between the pressing beam 52 and the workbench 4, and pulls the plate until it abuts against the ruler on the edge of the workbench 4. At the same time, click the start button on the operation panel, and the pressing beams 52 of the two pressing components 5 are pressed down synchronously. The pressing feet 53 press against the opposite two side edges of the plate. The workbench 4 moves backward until the front side edge of the plate is positioned below the tool 32. After the tool rest assembly 3 descends along the Z-axis lifting device 34, it moves horizontally along the X-axis moving device 33 towards the other end of the plate grooving machine. During the process, the tool 32 performs horizontal grooving on the plate along the edge of the pressing foot 53, and three notches can be simultaneously grooved on the front side edge of the plate. Overcoming mechanism interference and minimum side limit, regardless of the length of the plate in the X-axis direction, the tool rest assembly 3 needs to complete the full travel on the X-axis during one grooving process, without the tool 32 lifting or rotating midway. After completing one grooving, the workbench 4 moves forward until the rear side edge of the plate is positioned below the tool 32, the tool 32 rotates 180°, and the tool rest assembly 3 returns horizontally to the initial position. During the process, the tool 32 grooves 3 notches at the rear side edge of the plate. Therefore, during a round trip movement of the tool rest assembly 3 on the X-axis, the processing of two groups of notches on the opposite two side edges of the plate can be completed. After completion, the pressing beam 52 and the pressing foot 53 rise, and the operator rotates the plate 90°. Repeat the above steps until the grooving processing of the other two sides of the plate is completed, that is, the operator only needs to rotate the plate 1 additional time to complete the processing of the four sides of the plate, and the work efficiency is relatively high.

[0031] The above description is an explanation of the present invention, not a limitation of the present invention. Without departing from the spirit of the present invention, the present invention can be modified in any form.

Claims

1. A plate grooving machine, comprising a base (1) and a cross beam (2) fixed above the base (1). A tool holder assembly (3) capable of horizontally moving along the X-axis is provided on the cross beam (2), and the cutting tool (32) at its bottom can be lifted and rotated. It is characterized in that: Below the tool rest assembly (3) and on top of the base (1), a workbench (4) that can move along the Y-axis is provided. Above the workbench (4), several material pressing assemblies (5) arranged in parallel along the X-direction are provided. At least one group of the material pressing assemblies (5) can move back and forth along the Y-axis. The material pressing assembly (5) includes material pressing brackets (51) symmetrically arranged on both sides of the workbench (4), a material pressing beam (52) that can be lifted and lowered between them, and a pressing foot (53) located at the bottom of the material pressing beam (52). Moving the workbench (4) can make the sheet material pressed by the pressing foot (53) on it reach below the tool (32) of the tool rest assembly (3), and grooving processing can be carried out using the tool (32).

2. The grooving machine for plates according to claim 1, characterized in that: The pressing foot (53) is continuous and has no notch, and its length is equivalent to the distance between the two material pressing brackets (51); the pressing feet (53) of the frontmost and rearmost groups of the material pressing assemblies (5) are symmetrically arranged and extend to the relatively outer sides of the material pressing beam (52).

3. The grooving machine for plates according to claim 1, characterized in that: The middle part of the material pressing bracket (51) has a through hole (512), and an oil cylinder (54) is installed at the top. The two ends of the material pressing beam (52) are inserted into the through hole (512) and are driven to lift and lower by the piston rod of the oil cylinder (54).

4. The grooving machine for sheet materials according to claim 1, wherein: Second Y-axis moving devices (56) are arranged on the left and right sides of the workbench (4). At least one group of the material pressing assemblies (5) can move back and forth through the second Y-axis moving devices (56).

5. The grooving machine for plates according to claim 4, characterized in that: Two groups of material pressing assemblies (5) are provided above the workbench (4), one of which is fixed and the other can move back and forth along the second Y-axis moving device (56).

6. The grooving machine for plates according to claim 5, characterized in that: The bottom of the material pressing bracket (51) of the fixed material pressing assembly (5) is fixed to the workbench (4), and the bottom of the material pressing bracket (51) of the movable material pressing assembly (5) has a groove (511) that cooperates with the second Y-axis moving device (56), so that the position of the material pressing assembly (5) can be moved as the size of the sheet material changes.

7. The grooving machine for sheet materials according to claim 1, wherein: Spring seats (55) are provided outside the material pressing brackets (51) and below the material pressing beams (52).

8. The plate grooving machine according to claim 1, characterized in that: The tool magazine (31) of the tool rest assembly (3) can rotate 180°.

9. The grooving machine for plates according to claim 1, characterized in that: The tool magazine (31) is provided with a plurality of tool positions longitudinally and transversely, and the cutting edges of the tools (32) in the tool positions are all in the same direction.

10. The grooving process using the sheet grooving machine according to claim 1, characterized in that: Including the following steps: S1. Move the material pressing assembly (5) according to the size of the sheet material on the workbench (4). The material pressing beams (52) and pressing feet (53) of the frontmost and rearmost groups of the material pressing assemblies (5) descend, and the pressing feet (53) press the opposite side edges of the sheet material. S2. Move the workbench (4) until the front edge of the sheet material is positioned below the tool (32). The tool rest assembly (3) descends and moves from one end of the initial position to the other end of the sheet material grooving machine. The tool (32) moves along the outside of the pressing foot (53) and grooves the front edge of the sheet material. S3. Move the workbench (4) until the rear edge of the sheet material is positioned below the tool (32). The tool (32) rotates 180°, the tool rest assembly (3) returns to one end of the initial position, and the tool (32) moves along the outside of the pressing foot (53) and grooves the rear edge of the sheet material. S4. The pressure beam (52) and the pressure foot (53) of the blank holding assembly (5) lift and release the sheet material, and after rotating the sheet material by 90°, repeat the steps of S1 - S3 above until the grooving of the remaining two side edges is completed.

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