Aluminum skin correction equipment

Abstract

The utility model relates to the technical field of railway passenger car production, and discloses an aluminum skin correcting device which comprises a mold body, an arc-shaped trimming face is formed at the top of the mold body; the limiting structure is arranged on one side of the mold body and used for fixing a workpiece, the limiting structure comprises a first pressing plate, a second pressing plate, a positioning rod and a puncture hole, the second pressing plate is fixedly arranged on one side of the mold body, and the first pressing plate is arranged above the second pressing plate and can be close to the second pressing plate; a plurality of non-linearly distributed positioning rods are fixedly mounted at the bottom of the first pressing plate, puncture holes are formed in the top face of the second pressing plate, the positioning rods can be inserted into the puncture holes, after a workpiece is placed on the mold body, the first pressing plate is made to be close to the second pressing plate, and the positioning rods at the bottom of the first pressing plate pierce the material edge of the workpiece and are inserted into the puncture holes. Multi-point positioning of the workpiece is achieved through the positioning rods which are not distributed on a straight line.

Description

Technical Field

[0001] This utility model relates to the field of rail passenger vehicle manufacturing technology, and in particular to an aluminum skin correction device. Background Technology

[0002] The existing front panel adopts a completely new design structure. The front panel is formed by mold pressing and then manually adjusted to form a qualified panel.

[0003] The prior art discloses a curved skin stretching mold (publication number: CN207872904U), belonging to the field of skin processing technology. It includes a mold body, and at least three non-collinear vertical positioning bodies are arranged around the mold body. The positioning bodies are telescopic structures, and the top of the positioning bodies is a cone.

[0004] In the existing technology, retractable positioning pins are set on the side of the mold to mark the workpiece for positioning. However, due to the lack of compression and limiting of the workpiece, there may still be deviations when placing the workpiece in front and behind, which will affect the correction accuracy of the workpiece. There is room for optimization.

[0005] Therefore, we propose an aluminum skin correction device. Utility Model Content

[0006] The present invention mainly addresses the aforementioned technical problem of poor workpiece positioning effect by providing an aluminum skin correction device.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: an aluminum skin correction device, comprising:

[0008] The mold body has an arc-shaped finishing surface at its top;

[0009] A limiting structure is provided on one side of the mold body to fix the workpiece. The limiting structure includes a first pressure plate, a second pressure plate, positioning rods and puncture holes. The second pressure plate is fixedly provided on one side of the mold body. The first pressure plate is provided above the second pressure plate and can be close to the second pressure plate. Several non-linearly distributed positioning rods are fixedly installed at the bottom of the first pressure plate. A puncture hole is opened on the top surface of the second pressure plate, and the positioning rods can be inserted into the puncture hole.

[0010] A pushing structure is provided between the first pressure plate and the second pressure plate to push the first pressure plate closer to the second pressure plate.

[0011] In a preferred embodiment of this utility model, both the first pressure plate and the second pressure plate are rectangular plates, and the same first pressure plate and second pressure plate are symmetrically arranged on both sides of the mold body.

[0012] In a preferred embodiment of this utility model, the bottom of the positioning rod is chamfered to form a pointed tip, the positioning rod is a cylinder, the puncture hole is a circular hole, the diameter of the puncture hole is larger than that of the positioning rod, the depth of the puncture hole is larger than that of the positioning rod, and the positioning rod and the puncture hole are distributed in a one-to-one correspondence.

[0013] In a preferred embodiment of this utility model, the pushing structure includes an adjusting screw and a guide rod. The adjusting screw is rotatably connected to the second pressure plate, and the guide rod is fixedly connected to the second pressure plate. The adjusting screw can push the first pressure plate to slide along the guide rod and approach the first pressure plate.

[0014] In a preferred embodiment of this utility model, the pushing structure further includes an internal threaded sleeve and a guide hole. The guide hole is provided on the top of the first pressure plate, the guide rod is slidably disposed in the guide hole, the internal threaded sleeve is fixedly connected to the first pressure plate, and the adjusting screw is threadedly connected to the internal threaded sleeve.

[0015] In a preferred embodiment of this utility model, the top of the first pressure plate is provided with a through mounting hole, and the internal threaded sleeve is inserted into the mounting hole and welded and fixed to the first pressure plate.

[0016] In a preferred embodiment of this utility model, two guide holes symmetrically distributed with internal thread sleeves are opened through the top of the first pressure plate, and two guide rods are fixedly installed on the top of the second pressure plate. The guide rods pass through the corresponding guide holes and are fixedly connected to the top surface of the second pressure plate. The guide holes and guide rods cooperate with each other.

[0017] Beneficial effects

[0018] This invention provides an aluminum skin correction device. It has the following beneficial effects:

[0019] 1. This aluminum skin straightening device involves placing the workpiece on the mold body, bringing the first pressure plate close to the second pressure plate, and inserting a positioning rod at the bottom of the first pressure plate into the puncture hole after piercing the edge of the workpiece. The positioning rods, which are not distributed in a straight line, achieve multi-point positioning of the workpiece. Even if the workpiece is removed and re-fixed, it is only necessary to align the hole on the edge of the workpiece with the puncture hole and bring the first pressure plate close to the second pressure plate again to press the edge tightly. This helps improve the positioning effect of the workpiece. The clamping and puncture method greatly improves the fixing effect of the workpiece. Furthermore, the fixing position is located on the scrap edge of the workpiece; after finishing, only the scrap edge needs to be cut off, without affecting the overall finishing and integrity of the workpiece.

[0020] 2. This aluminum skin straightening device, by rotating the adjusting screw, moves the internal thread sleeve to drive the first pressure plate to descend. The first pressure plate slides vertically along the guide rod and approaches the first pressure plate, thereby pushing the first pressure plate. The first and second pressure plates approach each other to clamp and limit the edge of the workpiece. The position of the second pressure plate can be adjusted to adapt to the fixing of workpieces of different thicknesses within a certain range, with better adaptability and flexibility of use, and simple and quick operation. Attached Figure Description

[0021] Figure 1 This is a perspective view of the entire utility model;

[0022] Figure 2 This is a perspective view of the limiting structure and the pushing structure of this utility model;

[0023] Figure 3 This is one of the three-dimensional views of the first pressure plate of this utility model;

[0024] Figure 4 This is the second perspective view of the first pressure plate of this utility model;

[0025] Figure 5 This is a perspective view of the second pressure plate of this utility model.

[0026] Legend: 10. Mold body; 20. First pressure plate; 21. Second pressure plate; 22. Positioning rod; 23. Puncture hole; 30. Adjusting screw; 31. Guide rod; 32. Internal threaded sleeve; 33. Guide hole. Detailed Implementation

[0027] An aluminum skin correction device, such as Figure 1 As shown, it includes:

[0028] The mold body 10 has an arc-shaped finishing surface at its top. Specifically, the mold body 10 needs to be fixedly installed on the workbench and is mainly used for the production of the front part of the intercity rail passenger car. The mold body 10 shown in the figure is used for the roof part. The skin formed by calendering is placed on the mold body 10 and manually finished. The mold bodies 10 used for other parts of the front are matched with the shape of the workpiece, which will not be described in detail here.

[0029] like Figure 2 , Figure 3 and Figure 4 as well as Figure 5As shown, a limiting structure is set on one side of the mold body 10 to fix the workpiece. The limiting structure includes a first pressure plate 20, a second pressure plate 21, a positioning rod 22, and a puncture hole 23. The second pressure plate 21 is fixedly set on one side of the mold body 10. The first pressure plate 20 is set above the second pressure plate 21 and can be close to the second pressure plate 21. Several non-linearly distributed positioning rods 22 are fixedly installed at the bottom of the first pressure plate 20. The top surface of the second pressure plate 21 has a puncture hole 23, and the positioning rod 22 can be inserted into the puncture hole 23. The first pressure plate 20 and the second pressure plate 21 are both rectangular plates. The same first pressure plate 20 and the second pressure plate 21 are symmetrically arranged on both sides of the mold body 10. The bottom of the positioning rod 22 is chamfered to form a sharp point. The positioning rod 22 is a cylinder. The puncture hole 23 is a round hole. The diameter of the puncture hole 23 is larger than that of the positioning rod 22, and the depth of the puncture hole 23 is larger than that of the positioning rod 22. The positioning rod 22 and the puncture hole 23 are distributed in a one-to-one correspondence.

[0030] In this solution, considering that the workpiece may need to be further refined after repair, and that the positional difference between the front and rear sides of the workpiece placed on the mold body 10 will affect the repair accuracy, in order to ensure the uniformity of the front and rear fixed positions of the mold body 10, after the workpiece is placed on the mold body 10, the first pressure plate 20 is brought close to the second pressure plate 21. The positioning rod 22 at the bottom of the first pressure plate 20 pierces the material edge of the workpiece and is inserted into the piercing hole 23. Through the positioning rod 22 which is not distributed in a straight line, multi-point positioning of the workpiece is achieved. Even if the workpiece is removed and fixed again, it is only necessary to align the hole on the material edge of the workpiece with the piercing hole 23, and bring the first pressure plate 20 close to the second pressure plate 21 again to press the material edge tightly. This helps to improve the positioning effect of the workpiece. At the same time, the fixed position is located on the scrap edge of the workpiece. After the fine repair is completed, only the scrap edge needs to be cut off, which does not affect the overall repair and integrity of the workpiece.

[0031] like Figure 2 , Figure 4 and Figure 5 As shown, a pushing structure is disposed between the first pressure plate 20 and the second pressure plate 21 for pushing the first pressure plate 20 closer to the second pressure plate 21;

[0032] The pushing structure includes an adjusting screw 30 and a guide rod 31. The adjusting screw 30 is rotatably connected to the second pressure plate 21, and the guide rod 31 is fixedly connected to the second pressure plate 21. The adjusting screw 30 can push the first pressure plate 20 to slide along the guide rod 31 closer to the first pressure plate 20. The pushing structure also includes an internal threaded sleeve 32 and a guide hole 33. The top of the first pressure plate 20 has a guide hole 33. The guide rod 31 is slidably disposed in the guide hole 33. The internal threaded sleeve 32 is fixedly connected to the first pressure plate 20. The adjusting screw 30 is threadedly connected to the internal threaded sleeve 32. The top of the first pressure plate 20 has a through-hole. The internal threaded sleeve 32 is inserted into the through-hole and welded to the first pressure plate 20. The top of the first pressure plate 20 has two guide holes 33 symmetrically distributed with respect to the internal threaded sleeve 32. Two guide rods 31 are fixedly installed on the top of the second pressure plate 21. The guide rods 31 pass through the corresponding guide holes 33 and are fixedly connected to the top surface of the second pressure plate 21. The guide holes 33 and the guide rods 31 cooperate with each other.

[0033] In this scheme, in order to bring the first pressure plate 20 closer to the second pressure plate 21, the adjusting screw 30 is rotated, which moves the internal thread sleeve 32 to lower the first pressure plate 20. The first pressure plate 20 slides vertically along the guide rod 31 and moves closer to the first pressure plate 21, thus pushing the first pressure plate 20. By bringing the first pressure plate 20 and the second pressure plate 21 closer to each other and clamping and limiting the edge of the workpiece, the position of the second pressure plate 21 can be adjusted to accommodate workpieces of different thicknesses within a certain range, which has better adaptability and flexibility of use, and is simple and quick to operate.

[0034] The working principle of this utility model is as follows: The skin formed by calendering is placed on the mold body 10. The adjusting screw 30 is rotated, and the adjusting screw 30 moves the internal thread sleeve 32 to drive the first pressure plate 20 down. The first pressure plate 20 slides vertically along the guide rod 31 and approaches the first pressure plate 20, thereby pushing the first pressure plate 20. The positioning rod 22 at the bottom of the first pressure plate 20 pierces the edge of the workpiece and inserts into the piercing hole 23. Through the positioning rods 22 which are not distributed in a straight line, multi-point positioning of the workpiece is achieved.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An aluminium skin correction apparatus, characterized in that, The utility model relates to a kind of moulding body (10), the top of moulding body (10) forms the finishing surface of arc; Limiting structure, for fixing workpiece, the limiting structure includes first pressing plate (20), second pressing plate (21), positioning rod (22) and puncture hole (23), the second pressing plate (21) is fixedly arranged on one side of moulding body (10), the first pressing plate (20) is arranged above second pressing plate (21) and first pressing plate (20) can be close to second pressing plate (21), the bottom of first pressing plate (20) is fixedly installed with several non-linear distribution positioning rod (22), the top surface of second pressing plate (21) is provided with puncture hole (23), and the positioning rod (22) can be inserted into puncture hole (23). Pushing structure, for pushing first pressing plate (20) close to second pressing plate (21) between first pressing plate (20) and second pressing plate (21). The first pressing plate (20) and the second pressing plate (21) are both rectangular plates, and the same first pressing plate (20) and second pressing plate (21) are symmetrically arranged on both sides of the moulding body (10).

2. The aluminum skin correction apparatus of claim 1, wherein: The bottom of the positioning rod (22) is chamfered to form a sharp end, the positioning rod (22) is a cylinder, the puncture hole (23) is a circular hole, the diameter of the puncture hole (23) is greater than that of the positioning rod (22), the depth of the puncture hole (23) is greater than the length of the positioning rod (22), and the positioning rod (22) and the puncture hole (23) are one-to-one corresponding.

3. The aluminum skin correction apparatus of claim 1, wherein: The pushing structure includes an adjusting screw (30) and a guide rod (31), the adjusting screw (30) is rotatably connected with the second pressing plate (21), the guide rod (31) is fixedly connected with the second pressing plate (21), and the adjusting screw (30) can push the first pressing plate (20) to slide along the guide rod (31) to approach the first pressing plate (20).

4. The aluminum skin correction apparatus of claim 1, wherein: The pushing structure further includes an internal thread sleeve (32) and a guide hole (33), the top of the first pressing plate (20) is provided with the guide hole (33), the guide rod (31) is slidably arranged in the guide hole (33), the internal thread sleeve (32) is fixedly connected with the first pressing plate (20), and the adjusting screw (30) is threadedly connected with the internal thread sleeve (32).

5. The aluminum skin correction apparatus of claim 4, wherein: The top of the first pressing plate (20) is provided with a mounting hole, the internal thread sleeve (32) is inserted into the mounting hole and welded with the first pressing plate (20).

6. The aluminum skin correction apparatus of claim 5, wherein: The top of the first pressing plate (20) is provided with two guide holes (33) symmetrically distributed with the internal thread sleeve (32), two guide rods (31) are fixedly installed on the top of the second pressing plate (21), the guide rod (31) passes through the corresponding guide hole (33) and is fixedly connected with the top surface of the second pressing plate (21), and the guide hole (33) and the guide rod (31) are used in cooperation.

7. The aluminum skin correction apparatus of claim 5, wherein: ​

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