Hole drawing and riveting device for machining metal plate through bending machine

Abstract

The utility model discloses a hole drawing and riveting device for machining a metal plate through a bending machine. The hole drawing and riveting device comprises a positioning plate. A plurality of pressing rods; the spacer block is arranged at one end of the positioning plate; the movable block is rotationally connected to the other end of the positioning plate; the supporting rod is arranged at the upper end of the spacer block; the movable block selectively abuts against the lower end of the other end of the supporting rod. The upper end of the supporting rod is connected with two positioning pins in a sliding manner; a spring is arranged between the positioning pin and the supporting rod; the two positioning pins are right opposite to the two pressing rods with the farthest distance. And the utilization rate of the bending machine is improved, and the vacancy cost of the bending machine is reduced. And a plurality of riveting devices can be riveted at a time, so that the production efficiency is improved, the compatibility to the riveting position is high, and the universality is very high. And the movable block not only facilitates taking and placing of the frame type parts and the pipe type parts, but also can provide stable support for the suspended supporting rod.

Description

Technical Field

[0001] This utility model belongs to the field of bending machine technology, and in particular relates to a device for riveting and drilling sheet metal using a bending machine. Background Technology

[0002] The manufacturing process of server chassis generally involves laser cutting of metal sheets, riveting nuts and screws onto the metal sheets, bending the metal sheets with a bending machine, and finally, riveting the corresponding metal sheets together to form a complete product. Riveting is a common sheet metal processing technique that involves riveting nuts, screws, and other parts onto metal sheets. External force is used to force the rivet nuts and screws into pre-made grooves, achieving a secure connection between the parts and the metal sheet. In existing technologies, manual or automated riveting tools can often only operate on one riveting position at a time. However, in the manufacturing process of server chassis, a single product has numerous riveting positions, making existing riveting tools extremely inefficient. While some methods use press-fit dies to rivet multiple positions at once, these dies and specialized equipment are not only expensive, but the dies are also only suitable for specific products. With each product iteration and upgrade, new dies need to be customized.

[0003] Chinese patent document CN219724472U discloses a bending machine with sheet metal riveting function, including an upper die, a worktable, and a lower die mounted on the worktable. The upper die has a first mounting base, on which a riveting upper template is detachably connected. The lower die has a second mounting base, on which a bending groove and a riveting lower template are provided. The bottom of the riveting lower template has a first connecting part, which is engaged in the bending groove. The riveting lower template has rivet holes for installing rivets. By utilizing the large worktable of the bending machine, it can simultaneously rivet multiple rivets on larger sheet metal, ensuring both riveting quality and efficiency.

[0004] The aforementioned patented solution can only perform riveting operations on plate-shaped parts, requiring stable support from the bottom surface at the riveting position. However, server chassis often have frame-type or tubular structures, and the aforementioned patented solution cannot provide support for the lower end of the riveting position. Therefore, the aforementioned patented solution cannot be applied to the manufacture of server chassis. Utility Model Content

[0005] To overcome the technical problems in existing server chassis frame or tubular structures where the lower end of the riveting position is inconvenient to support, resulting in low work efficiency when riveting a single position and inconvenience for manual operation and tool use when riveting multiple positions, one objective of this utility model is to provide a sheet metal riveting device using a bending machine. This device involves setting a pressure rod on the slider of the bending machine and a support rod with one end suspended on the worktable. The support rod extends into the frame or tubular structure to support the lower end of the riveting position. Simultaneously, a movable block is set on the worktable to support the suspended support rod, improving the support strength of the support rod and ensuring riveting quality.

[0006] To achieve the above objectives, this utility model employs the following technical solution: a sheet metal riveting and hole-pulling device for processing with a bending machine, comprising: a positioning plate disposed on the worktable of the bending machine; multiple pressure rods disposed on the slider of the bending machine; a spacer block disposed at one end of the positioning plate; a movable block rotatably connected at one end to the other end of the positioning plate; a support rod with the upper end of the spacer block disposed at one end; the movable block selectively abutting against the lower end of the other end of the support rod; two positioning pins longitudinally slidably connected to the upper end of the support rod; a spring for causing the positioning pins to slide upward between the positioning pins and the support rod; and the two positioning pins respectively facing the two pressure rods furthest apart.

[0007] Furthermore, a calibration plate is provided between each of the pressure rods; the calibration plate has multiple through holes; the pressure rod passes through the through holes.

[0008] The calibration plate is manufactured by sheet metal laser cutting or automated machine tools. The manufacturing process is simple and low-cost, and the positional accuracy of the perforations is high. This not only facilitates the installation and positional adjustment of the pressure rod, but also improves the positional accuracy of the pressure rod.

[0009] Furthermore, a needle bar is provided at the lower end of the pressure rod below the calibration plate; an elastic tube is provided on the outer periphery of the needle bar; the lower end of the elastic tube is located below the needle bar; the lower end of the elastic tube can be compressed to above the lower end of the needle bar.

[0010] Preferably, the elastic tube is made of urethane.

[0011] The elastic tube pre-presses the riveting position before riveting begins, improving the stability and quality of the riveting process.

[0012] Optionally, each of the pressure rods is arranged linearly; each of the pressure rods has a mounting block at its upper end; the rear end of the mounting block has an abutment platform that abuts against the lower end of the slider; the front end of the mounting block has a connecting groove, and a clamp is detachably connected to the slider within the connecting groove.

[0013] Optionally, each of the pressure rods is provided with a mounting block at its upper end; the rear end of the mounting block is provided with an abutment platform that abuts against the lower end of the slider; the front end of the mounting block is provided with a connecting groove, and a clamp is detachably connected to the slider within the connecting groove.

[0014] Furthermore, two vertical columns are longitudinally arranged at the upper end of the spacer block; two insertion holes are provided at the lower end of the support rod, and the columns are located in the insertion holes; two countersunk holes are provided at the upper end of the support rod between the two insertion holes; screws in the countersunk holes are tightened onto the spacer block.

[0015] Furthermore, the lower end of the support rod is provided with two stepped through holes; the positioning pin is located in the stepped through holes; a plug is detachably connected to the lower end of the stepped through holes; and the spring is disposed between the upper end of the plug and the lower end of the positioning pin.

[0016] Specifically, the upper end of the support rod is provided with a clearance opening.

[0017] Specifically, a swing arm is provided at one end of the movable block away from its rotation axis; the rotation axis of the movable block is located behind the support rod.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model modifies an existing bending machine. The bending and riveting processes are often performed in separate steps. The bending machine can perform the bending and riveting processes sequentially, which improves the utilization rate of the bending machine, reduces the idle cost of the bending machine, and thus reduces production costs and improves economic efficiency.

[0020] 2. This utility model can rivet multiple positions at once, which can multiply the production efficiency. The position of the pressure rod is flexible and highly compatible with the riveting position, and has a high degree of versatility.

[0021] 3. This utility model can be applied not only to common plate-type parts, but also to frame-type and tubular parts. The movable block not only facilitates the picking and placing of frame-type and tubular parts, but also provides stable support for the suspended support rod. By improving the stability of the support rod, the riveting quality is guaranteed.

[0022] 4. This utility model is equipped with a positioning pin and an elastic tube. The positioning pin facilitates the placement and alignment adjustment of the workpiece to be processed, facilitates manual operation, and improves the positioning accuracy of the workpiece to be processed. The elastic tube presses and positions the riveting position before riveting begins to prevent displacement, which helps to improve the riveting quality and reduce the defect rate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is an exploded structural diagram of the mounting part on the slider of the bending machine according to the present invention;

[0025] Figure 3 This is an exploded structural diagram of the mounting part on the workbench of the bending machine of this utility model;

[0026] Figure 4 This is a schematic diagram of the positioning pin and plug of this utility model;

[0027] Figure 5 This is a schematic diagram of the mounting block and pressure bar of this utility model;

[0028] Figure 6 This is a cross-sectional structural diagram of the support rod of this utility model.

[0029] In the diagram: 1. Positioning plate; 11. Spacer block; 111. Threaded hole; 12. Column; 2. Movable block; 21. Swing rod; 3. Support rod; 31. Clearance opening; 32. Positioning pin; 321. Spring; 322. Plug; 33. Countersunk hole; 34. Insertion hole; 35. Stepped through hole; 4. Calibration plate; 41. Through hole; 5. Mounting block; 51. Abutment platform; 52. Connecting groove; 6. Pressure rod; 61. Needle rod; 7. Elastic tube; 8. Worktable; 9. Slider; 91. Fixture; 10. Tubular or frame type parts; 101. Riveting position. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] In the description of this utility model, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In this description of the utility model, "a number" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, terms such as "set" and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] See Figures 1-6 A sheet metal drilling and riveting device for processing with a bending machine includes a positioning plate 1 mounted on a bending machine worktable 8 and multiple pressure rods 6 mounted on a bending machine slider 9. One end of the positioning plate 1 is provided with a spacer block 11, and the other end is provided with a movable block 2 rotatably connected to the positioning plate 1. A swing arm 21 is provided at the end of the movable block 2 away from its rotation axis. The rotation axis of the movable block 2 is located behind the spacer block 11.

[0035] A support rod 3 is provided on the spacer block 11; two columns 12 are longitudinally arranged on the upper end of the spacer block 11; two insertion holes 34 are provided at one lower end of the support rod 3, and the columns 12 are located in the insertion holes 34; two countersunk holes 33 are provided on the upper end of the support rod 3 between the two insertion holes 34; two threaded holes 111 are provided on the upper end of the spacer block 11, which are respectively opposite to the countersunk holes 33; screws in the countersunk holes 33 are tightened into the threaded holes 111. The other end of the movable block 2 can be selectively rotated to abut against the lower end of the other end of the support rod 3.

[0036] The upper end of the support rod 3 is longitudinally slidably connected to two positioning pins 32; the two positioning pins 32 are respectively opposite to the two pressure rods 6 that are furthest apart; the lower end of the support rod 3 is provided with two stepped through holes 35; the positioning pins 32 are located in the stepped through holes 35; the lower end of the stepped through holes 35 is detachably connected to a plug 322; a spring 321 is provided between the upper end of the plug 322 and the lower end of the positioning pin 32; the elastic force of the spring 321 is used to move the upper end of the positioning pin 32 to the top of the support rod 3.

[0037] A calibration plate 4 is provided between each of the pressure rods 6; multiple through holes 41 are provided through the calibration plate 4; the pressure rods 6 pass through the through holes 41. A needle rod 61 is provided at the lower end of the pressure rod 6 below the calibration plate 4; an elastic tube 7 made of urethane is provided around the outer periphery of the needle rod 61; the lower end of the elastic tube 7 is located below the needle rod 61; the lower end of the elastic tube 7 can be compressed to above the lower end of the needle rod 61.

[0038] In one embodiment: each of the pressure rods 6 is arranged linearly; each of the pressure rods 6 is provided with a mounting block 5 at its upper end; the rear end of the mounting block 5 is provided with an abutment platform 51 that abuts against the lower end of the slider 9; the front end of the mounting block 5 is provided with a connecting groove 52, and a clamp 91 is detachably connected to the slider 9 within the connecting groove 52.

[0039] In other embodiments, each of the pressure rods 6 may have a mounting block 5 at its upper end; the pressure rods 6 may not be arranged linearly, and the pressure rods 6 may be distributed as evenly as possible on both sides of the slider 9; the rear end of the mounting block 5 may have an abutment platform 51 that abuts against the lower end of the slider 9; the front end of the mounting block 5 may have a connecting groove 52, and a clamp 91 may be detachably connected to the slider 9 within the connecting groove 52.

[0040] The upper end of the support rod 3 is provided with a clearance opening 31; the protruding part on the workpiece to be processed is located inside the clearance opening 31.

[0041] Usage process: Select the appropriate support rod 3 according to the part to be processed and install it on the spacer block 11; install the same number of pressure rods 6 as the riveting position on the slider 9, and install the calibration plate 4 at the lower end of each mounting block 5. The pressure rods 6 pass through the through hole 41 in sequence, and fine adjust the position of the pressure rods 6 so that they are aligned with the riveting position on the support rod 3.

[0042] See Figure 1Rotate the rocker arm 21 to make the movable block 2 no longer contact the support rod 3, insert the tubular or frame-shaped part 10 to be processed onto the support rod 3, and make the positioning pin 32 abut against the two furthest riveting positions 101, and rotate the rocker arm 21 to make the movable block 2 abut against the lower end of the suspended end of the support rod 3.

[0043] When the bending machine is started, the slider 9 drives the pressure rod 6 to slide downward. The elastic tube 7 first presses the riveting position, and then the pressure rod 6 continues to slide downward, compressing the elastic tube 7. The needle rod 61 and the support rod 3 work together to rivet, and the pin 32 is pressed into the stepped through hole 35, and the spring 321 is compressed.

[0044] Finally, slide block 9 returns to its original position, rotate movable block 2 so that it no longer abuts against support rod 3, remove the riveted part, replace it with a new part to be processed, and make positioning pin 32 abut against the two riveting positions furthest apart, start the bending machine again, and repeat this process.

[0045] The above description is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the patent scope of the present utility model.

Claims

1. A device for processing a metal plate hole-riveting apparatus with a bending machine, characterized by: It includes a positioning plate, which is set on the worktable of the bending machine; Pressure bars, of which there are multiple pressure bars, are respectively disposed on the slider of the bending machine; A spacer block is disposed at one end of the positioning plate; A movable block, one end of which is rotatably connected to the other end of the positioning plate; A support rod, one end of which is provided with the upper end of the spacer block; The movable block can be selectively abutted against the lower end of the other end of the support rod; the upper end of the support rod is longitudinally slidably connected with two positioning pins; a spring is provided between the positioning pins and the support rod to make the positioning pins slide upward; the two positioning pins are respectively opposite to the two pressure rods that are furthest apart.

2. The riveting device of claim 1, wherein: A calibration plate is provided between each of the pressure rods; multiple through holes are provided through the calibration plate; the pressure rods pass through the through holes.

3. The riveting device of claim 2, wherein: The lower end of the pressure bar is provided with a needle bar located below the calibration plate; an elastic tube is provided on the outer periphery of the needle bar; the lower end of the elastic tube is located below the needle bar; the lower end of the elastic tube can be selectively compressed to above the lower end of the needle bar.

4. The riveting device of claim 3, wherein: The elastic tube is made of urethane.

5. A riveting device according to any one of claims 1 to 4, wherein: Each of the pressure rods is arranged linearly; each of the pressure rods has a mounting block at its upper end; the rear end of the mounting block has an abutment platform that abuts against the lower end of the slider; the front end of the mounting block has a connecting groove, and a clamp is detachably connected to the slider within the connecting groove.

6. A riveting device according to any one of claims 1 to 4, wherein: Each of the pressure rods has a mounting block at its upper end; the rear end of the mounting block has an abutment platform that abuts against the lower end of the slider; the front end of the mounting block has a connecting groove, and a clamp is detachably connected to the slider within the connecting groove.

7. A riveting device as claimed in any one of claims 1 to 4, wherein: The spacer block has two vertical columns at its upper end; the support rod has two insertion holes at its lower end, and the columns are located in the insertion holes; the support rod has two countersunk holes at its upper end between the two insertion holes; the screws in the countersunk holes are tightened onto the spacer block.

8. A riveting device as claimed in any one of claims 1 to 4, wherein: The lower end of the support rod is provided with two stepped through holes; the positioning pin is located in the stepped through holes; a plug is detachably connected to the lower end of the stepped through holes; the spring is located between the upper end of the plug and the lower end of the positioning pin.

9. A riveting device as claimed in any one of claims 1 to 4, wherein: The upper end of the support rod is provided with a clearance opening.

10. A riveting device as claimed in any one of claims 1 to 4, wherein: A swing arm is provided at one end of the movable block away from its rotation axis; the rotation axis of the movable block is located behind the support rod.

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