Auxiliary tool for part allowance milling

Abstract

The utility model belongs to the technical field of aerospace sheet metal part forming and manufacturing, and relates to a part allowance milling auxiliary tool which comprises a fixing frame, the fixing frame comprises a horizontal base and a supporting face vertically arranged on the horizontal base, and two adjustable devices are arranged on the front face of the supporting face. The milling cutter adjusting device is arranged on the back of the supporting surface; a through hole is formed between the two adjustable devices, a milling cutter of the milling cutter adjusting device penetrates through the through hole from the back face of the supporting face and is arranged on one side of the front face of the supporting face, the height of the milling cutter can be adjusted, the milling cutter can be suitable for different flange heights, and the auxiliary roller device can be adjusted to adapt to different material thicknesses and part widths. The operation flexibility is good, the milling flexibility and the milling quality are ensured, the workload is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of forming and manufacturing aerospace thin plate sheet metal parts, and relates to a part surplus milling auxiliary tooling. Background Art

[0002] In the past, "L"-shaped or "U"-shaped thin plate (less than 6mm) bending parts with allowances needed to be manually marked and cut to make process allowances after forming. Different parts have different part thicknesses and lengths. When the parts are long, the number is large, or the material thickness is thick, the manual cutting is large, time-consuming and labor-intensive. There are always unstable factors that cause the shape of the parts to fluctuate during manual cutting. After the thin plate parts are formed, the part outline needs to be drawn at the edge of the part, and then the excess part is removed by manual cutting. At the same time, the parts will move during cutting, which causes the part shape allowance to fluctuate. After cutting, the shape needs to be accurately trimmed to meet the size requirements. The entire process requires a large amount of manual work and low work efficiency. There is an urgent need for a milling auxiliary device to reduce the workload and improve work efficiency. Utility Model Content

[0003] The purpose of the utility model is to propose a part allowance milling auxiliary tooling, which adopts an adjustable positioning and fixing device to fix the milling cutter in an appropriate position, adjust the roller height to adapt to different material thicknesses, and can realize fast milling of parts of different sizes, ensure the shape accuracy of the parts, and reduce the difficulty of work.

[0004] Technical solution:

[0005] A part allowance milling auxiliary tooling comprises a fixed frame, wherein the fixed frame comprises a horizontal base and a supporting surface vertically arranged on the horizontal base, two adjustable devices are arranged on the front side of the supporting surface, and a milling cutter adjustment device is arranged on the reverse side of the supporting surface; a through hole is arranged between the two adjustable devices, and the milling cutter of the milling cutter adjustment device passes through the through hole from the reverse side of the supporting surface and is arranged on the front side of the supporting surface.

[0006] Furthermore, the adjustable device includes a first adjusting bolt, an adjusting bracket assembly, and an adjustable roller. The adjusting bracket assembly includes a first guide rod, an adjustable bracket, and a fixing plate. The fixing plate is installed on the front side of the supporting surface. Two first guide rods are slidably arranged on the fixing plate. A threaded hole is arranged on the fixing plate. The threaded hole is located between the two first guide rods. A first adjusting bolt is arranged in the threaded hole. The bottom of the first guide rod and the first adjusting bolt are connected to the adjustable bracket, and an adjustable roller is connected to each end of the adjustable bracket.

[0007] Furthermore, the adjustable device also includes two fixed rollers, which correspond one to one with the positions of the two adjustable rollers. The fixed rollers are installed on the front side of the support surface through fixing pins and cooperate with the adjustable rollers to clamp the parts.

[0008] Furthermore, the adjustable device also includes a side limit device, which includes an adjusting nut, a roller support rod and a supporting roller. The roller support rod passes through the supporting surface, one end of which is connected to the adjusting nut located on the reverse side of the supporting surface, and the other end is connected to the supporting roller located on the front side of the supporting surface. The supporting roller limits the part, and the roller support rod and the adjusting nut form a screw structure.

[0009] Furthermore, the milling cutter adjustment device includes a second adjusting bolt, a second guide rod, a milling cutter, and a power source. The second adjusting bolt and the second guide rod are arranged in parallel on the bracket on the opposite side of the supporting surface. The bottom of the second adjusting bolt and the second guide rod are connected to the power source, and the power source is connected to the milling cutter through the through hole.

[0010] Furthermore, it also includes a clamp, the second adjusting bolt and the bottom of the second guide rod are connected to the clamp, and the power source is arranged in the clamp.

[0011] Beneficial effects:

[0012] The utility model provides an auxiliary tooling for milling the excess of parts. The milling cutter height is adjustable and can be suitable for different bending edge heights. The auxiliary roller device can be adjusted to adapt to different material thicknesses and part widths. The operation flexibility is good and the milling flexibility and milling quality are guaranteed, thereby reducing the workload and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the device of the utility model;

[0014] Figure 2 It is a side view of the device of the utility model;

[0015] Figure 3 It is a top view of the device of the utility model;

[0016] Figure 4 This is a schematic diagram of the installation of the milling cutter adjustment device on the support surface in the utility model;

[0017] Wherein: 1. fixing frame, 2. first guide rod, 3. first adjusting bolt, 4. adjustable roller, 5. fixed roller, 6. adjustable bracket, 7. clamp, 8. parts, 9. side limit device, 10. second adjusting bolt, 11. second guide rod, 12. supporting roller, 13. power source, 14. milling cutter, 15. fixing plate, 16. adjusting nut, 17. roller supporting rod. DETAILED DESCRIPTION

[0018] The utility model is further introduced below in conjunction with the accompanying drawings:

[0019] like Figure 1-4 , provides an embodiment of a part allowance milling auxiliary tooling, including a fixed frame 1, the fixed frame 1 includes a horizontal base and a supporting surface vertically arranged on the horizontal base, two adjustable devices are arranged on the front side of the supporting surface, and a milling cutter adjustment device is arranged on the back side of the supporting surface; a through hole is arranged between the two adjustable devices, and the milling cutter of the milling cutter adjustment device passes through the through hole from the back side of the supporting surface and is arranged on the front side of the supporting surface.

[0020] In this embodiment, the adjustable device includes a first adjusting bolt 3, an adjusting bracket assembly, and an adjustable roller 4. The adjusting bracket assembly includes a first guide rod 2, an adjustable bracket 6, and a fixing plate 15. The fixing plate 15 is installed on the front side of the supporting surface. Two first guide rods 2 are slidably arranged on the fixing plate 15. A threaded hole is arranged on the fixing plate 15. The threaded hole is located between the two first guide rods 2. The first adjusting bolt 3 is arranged in the threaded hole. The bottom of the first guide rod 2 and the first adjusting bolt 3 are connected to the adjustable bracket 6, and an adjustable roller 4 is connected to each end of the adjustable bracket 6.

[0021] In this embodiment, the adjustable device also includes a fixed roller. There are two fixed rollers 5, which correspond one to one with the positions of the two adjustable rollers 4. The fixed rollers 5 are installed on the front side of the support surface through fixing pins, and cooperate with the adjustable rollers 4 to clamp the parts.

[0022] In this embodiment, the adjustable device also includes a side limit device 9, which includes an adjusting nut 16, a roller support rod 17 and a support roller 12. The roller support rod 17 passes through the support surface, one end of which is connected to the adjusting nut 16 located on the reverse side of the support surface, and the other end is connected to the support roller 12 located on the front side of the support surface. The support roller 12 limits the part, and the roller support rod 17 and the adjusting nut 16 form a screw structure.

[0023] In this embodiment, the milling cutter adjustment device includes a second adjusting bolt 10, a second guide rod 11, a milling cutter 14, and a power source 13. The second adjusting bolt 10 and the second guide rod 11 are arranged in parallel on the bracket on the opposite side of the support surface. The bottom of the second adjusting bolt 10 and the second guide rod 11 are connected to the power source 13, and the power source 13 is connected to the milling cutter 14 through a through hole.

[0024] In this embodiment, a clamp 7 is further included, the second adjusting bolt 10 and the bottom of the second guide rod 11 are connected to the clamp 7 , and the power source 13 is disposed in the clamp 7 .

[0025] This embodiment provides a part allowance milling auxiliary tooling, which is mainly for thin plate parts with a thickness of more than 0.5 mm and less than 6 mm. During installation, the adjusting bolt, guide rod, adjusting bracket, fixing pin and roller are combined into an adjustable device and fixed on the fixing frame 1, and the roller is fixed to the fixing frame by the fixing pin to form a fixed roller device. The part is placed in the device, and the height of the roller is controlled by adjusting the adjustable bolt to adapt to different material thicknesses. The roller is a nylon wheel, which increases the friction while protecting the surface of the part from damage. The milling cutter 14 is fixed on the power source 13, and the power source 13 is fixed to the adjustment bracket by the power source fixing clamp 7 to achieve up and down adjustment.

[0026] The working principle of the utility model is as follows: the milling cutter 14 and the power source 13 are fixed to the fixing frame 1 through the second adjusting bolt 10, the clamp 7 and the second guide rod 11; the power source 13 is located on the reverse side of the supporting surface of the fixing frame 1 and is connected to the milling cutter 14 arranged on the front side of the supporting surface of the fixing frame 1 through the through hole; the second adjusting bolt 10, the clamp 7 and the second guide rod 11 can realize the clamping and up and down adjustment of the milling cutter 14 and the power source 13; the adjustable roller 4 is fixed to the fixing frame 1 and the adjustable bracket 6 through the fixing pin; the adjustable roller 4 can be adjusted with the fixing pin as the center of the circle Rotation, there are two fixed rollers 5, which correspond to the positions of the two adjustable rollers 4 one by one. The fixed roller 5 is installed on the front side of the support surface through a fixing pin, and can rotate with the fixing pin as the center of the circle. The fixed roller 5 and the adjustable roller 4 cooperate with the clamping parts. When adjusting the gap between the fixed roller 5 and the adjustable roller 4, the first adjusting bolt 3 can be rotated, and the first adjusting bolt 3 moves up and down, driving the guide rod 2 to move up and down on the adjustable bracket 6, and then the adjustable roller 4 can move up and down to adjust the gap size with the fixed roller 5 to adapt to different material thicknesses.

[0027] When in use, insert part 8 from the right side of the device, adjust the first adjusting bolt 3 to adjust the gap between the fixed roller 5 and the adjustable roller 4, so that part 8 can pass smoothly and have a certain friction pressure between the fixed roller 5 and the adjustable roller 4, adjust the adjusting nut 16, so that the roller adjusting rod 9 moves forward, and the roller adjusting rod 9 drives the supporting roller 12 to move toward the direction of part 8, and finally contacts with part 8. Under the action of the roller adjusting rod 9, the supporting roller 12 can prevent part 8 from deviating from the device during the movement, and adjust the second adjusting bolt 10 so that the second guide rod 11 moves up and down on the bracket on the opposite side of the supporting surface. The second guide rod 11 and the second adjusting bolt 10 drive the position of the power source 13 and the milling cutter 14, so that the milling cutter is facing the part 8 to be cut, ensuring that the milling cutter can correctly cut the excess of the part 8. After adjustment, the part 8 can be started to be milled.

[0028] In summary, in the process of milling the shape of some thin plate bending parts of sheet metal parts, the traditional method relies on workers to use handheld scissors to remove excess parts, especially for longer, more numerous or thicker parts. This method greatly increases the workload, consumes a lot of manpower, and reduces production efficiency. In addition, the shearing process will also cause fluctuations in the shape of the parts and uneven shapes. In view of the shortcomings of traditional manual shearing, the milling auxiliary device of the utility model has an auxiliary roller with adjustable positioning and fixing to adapt to different part shapes and material thicknesses. The milling cutter can adjust the height to cope with different bending heights and milling amounts, thereby reducing manual workload and improving work efficiency.

Claims

1. A part margin milling auxiliary tool, characterized in that: The cam is an adjustable gear that can be adjusted to a desired position, and the adjustable gear can be adjusted to a desired position on the cam face, the adjustable gear can be adjusted to a desired position on the cam face, and the adjustable gear can be adjusted to a desired position on the cam face.

2. The part allowance milling auxiliary tooling according to claim 1 is characterized in that: The adjustable device also includes two fixed rollers, which correspond one to one with the positions of the two adjustable rollers.

3. The part allowance milling auxiliary tooling according to claim 2 is characterized in that: The fixed roller is installed on the front side of the support surface through a fixed pin, and cooperates with the adjustable roller to press the parts.

4. The part allowance milling auxiliary tool according to claim 3 is characterized in that: The adjustable device also includes a side limit device, which includes an adjusting nut, a roller support rod and a supporting roller. The roller support rod passes through the supporting surface, one end of which is connected to the adjusting nut located on the reverse side of the supporting surface, and the other end is connected to the supporting roller located on the front side of the supporting surface. The supporting roller limits the part, and the roller support rod and the adjusting nut form a screw structure.

5. The part allowance milling auxiliary tool according to claim 1, characterized in that: The milling cutter adjustment device includes a second adjusting bolt, a second guide rod, a milling cutter, and a power source. The second adjusting bolt and the second guide rod are arranged in parallel on the bracket on the opposite side of the supporting surface. The bottom of the second adjusting bolt and the second guide rod are connected to the power source, and the power source is connected to the milling cutter through a through hole.

6. The part margin milling auxiliary tooling according to claim 5, characterized in that: It also includes a clamp, the second adjusting bolt and the bottom of the second guide rod are connected to the clamp, and the power source is arranged in the clamp.

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