A special forming method for profiles

Abstract

The present invention relates to the technical field related to profile processing, and discloses a special forming method for profiles. By combining stamping and rolling, a rolling support structure is creatively adopted in the stamping lower die, and rollers, drums or rollers are used to support the profile. The traditional surface support scheme using a die is abandoned, and a line-contact rolling support structure is adopted to limit the position according to the profile, reducing the contact area with the parts to ensure the quality of the profile. The method can well solve the many defects of traditional stamping and rolling, and has the characteristics of low manufacturing cost, easy maintenance and adjustment, high efficiency, stable production quality, etc.

Description

Technical Field

[0001] The present invention relates to the technical field related to profile processing, and in particular to a special forming method for profiles. Background Art

[0002] Profiles are solid, straight bars of metal formed through plastic processing to achieve a defined cross-sectional shape and size. Profiles come in a wide variety of sizes and specifications, serving a wide range of applications. They play a crucial role in rolling production, and are typically further processed through stamping, rolling, and other related processes.

[0003] At present, the industry mostly uses traditional die stamping technology for local flanging of profile materials. Because profiles are different from ordinary steel plates, they usually have shapes to enhance local strength. When planning such processes, if we follow the traditional flanging structure or rolling equipment, the following disadvantages will occur:

[0004] 1. The rolling equipment produces a single product and the production method is not flexible enough;

[0005] 2. Due to the high strength of the profile itself, the traditional stamping process requires multiple adjustments to the flanging tool block to achieve the stamping size, which is not conducive to reducing production costs;

[0006] 3. The surface of the parts mostly contacts the flanging cutter in the form of lines or surfaces, which is not conducive to large-scale and long-term production;

[0007] Therefore, we proposed a special forming method for profiles to solve the above problems. Summary of the Invention

[0008] The purpose of the present invention is to provide a special forming method for profiles to solve the problem raised in the above background technology that the existing profile rolling and stamping processing on the market have certain limitations, which are not conducive to improving product quality and reducing costs.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solution: a special forming method for profiles, comprising the following steps:

[0010] Step 1: Profile positioning: Place two profile products to be processed between the upper and lower templates, and make the profile products fit into the grooves on the lower template. At the same time, make the positioning holes on the profile products fit over the positioning pins on the lower pad. At this time, the front end of the profile product to be processed is just stuck in the groove on the rolling mounting bracket, and the front end of the profile product rests on the rolling support structure inside the rolling mounting bracket.

[0011] Step 2: Bending the profile: Start the punching machine, and the hydraulic cylinder on the punching machine will drive the upper template to descend. At this time, the pressing plate will cooperate with the lower pad, and the profile product will be bent to a suitable curvature through the arc grooves on the pressing plate and the lower pad;

[0012] Step 3: Local stamping: When the upper template descends, the punch fixed on the pressure plate will also descend. The punch will cooperate with the lower pad to stamp the profile product and stamp out the appropriate shape on the profile product.

[0013] Step 4: Bending: As the upper template descends, the arc-shaped insert installed on the insert fixing plate presses down, and cooperates with the rolling mounting bracket to bend the processing area at the front end of the profile product upward. The rolling mounting bracket supports the profile product through the rolling support structure;

[0014] Step 5, mold opening: Start the punching machine, the hydraulic cylinder on the punching machine will drive the upper template to rise, and at the same time the pressing plate and the lower pad will separate. At this time, the processed profile product can be taken out from the groove on the lower pad.

[0015] Furthermore, a knife fixing plate is fixedly installed under the upper template, an arc-shaped knife is fixedly installed on the rear of the knife fixing plate, a pressure plate is fixedly installed in the middle of the knife fixing plate, a punch is fixedly installed on the pressure plate, a lower pad is provided under the pressure plate, a lower template is provided under the lower pad, a rolling mounting bracket is fixedly installed on the rear of the lower template, a rolling support structure is movably installed on the rolling mounting bracket, and a positioning pin is fixedly installed on the lower pad.

[0016] Furthermore, the arc-shaped insert blades, the punch, the rolling mounting bracket, and the positioning pins are each provided in two groups, and the two groups of arc-shaped insert blades, the punch, the rolling mounting bracket, and the positioning pins are symmetrically arranged.

[0017] Furthermore, the upper template, the insert knife fixing plate, the arc insert knife, the pressing plate and the punch are all rigidly connected, and the lower pad and the lower template are elastically connected.

[0018] Furthermore, in the step 1, the width of the groove on the rolling mounting bracket is greater than the width of the area to be processed of the profile product.

[0019] Furthermore, in the step 2, the arc-shaped grooves on the pressing plate and the lower pad are processed according to the shape of the product.

[0020] Furthermore, the arc-shaped insert in step 4 is consistent with the shape of the original part after rebound.

[0021] Furthermore, the arc-shaped insert in step 4 is located between the lower pad supporting the profile product and the rolling support structure, and the rolling support structure supports the profile product from below.

[0022] Furthermore, the rolling support structure in step 4 adopts a roller, a drum or a roller, and the cross-sectional shape is consistent with the surface shape of the profile product to be processed.

[0023] Compared with the prior art, the beneficial effects of the present invention are: this special forming method for profiles adopts a combination of stamping and rolling processing, and adopts a rolling support structure in the stamping lower die, using rollers, drums or rollers to support the profile, abandoning the traditional surface support scheme using a die, and adopting a line contact rolling support structure to limit the position according to the shape, reducing the contact area with the parts to ensure the quality of the surface, which can well solve the many defects of traditional stamping and rolling processing, and has the characteristics of low manufacturing cost, easy maintenance and adjustment, high efficiency, and stable production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the appearance of the present invention Figure 1 ;

[0025] Figure 2 Schematic diagram of the appearance of the present invention Figure 2 ;

[0026] Figure 3 Schematic diagram of the appearance of the present invention Figure 3 ;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention;

[0028] Figure 5 Schematic diagram of the rolling support structure of the present invention Figure 1 ;

[0029] Figure 6 Schematic diagram of the rolling support structure of the present invention Figure 2 .

[0030] Numbers in the figure: 1. Upper template; 2. Insert fixing plate; 3. Arc insert; 4. Pressing plate; 5. Punch; 6. Lower pad; 7. Lower template; 8. Rolling mounting bracket; 9. Rolling support structure; 10. Profile product; 11. Positioning pin. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0032] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings.

[0033] A special forming method for profiles, comprising the following steps:

[0034] Step 1: Profile positioning: Place two profile products 10 to be processed between the upper template 1 and the lower template 7, and make the profile products 10 fit into the grooves on the lower template 7. At the same time, make the positioning holes on the profile products 10 fit over the positioning pins 11 on the bottom plate 6. At this time, the front end of the profile product 10 to be processed is just stuck in the groove of the rolling mounting bracket 8, and the front end of the profile product 10 rests on the rolling support structure 9 in the rolling mounting bracket 8;

[0035] Step 2: Bending the profile: Start the punching machine, and the hydraulic cylinder on the punching machine will drive the upper template 1 to descend. At this time, the pressing plate 4 will cooperate with the lower pad 6, and the profile product 10 will be bent to a suitable curvature through the arc grooves on the pressing plate 4 and the lower pad 6;

[0036] Step 3: Local stamping: As the upper template 1 descends, the punch 5 fixed on the press plate 4 will descend together. The punch 5 will cooperate with the lower pad 6 to stamp the profile product 10, stamping out a suitable shape on the profile product 10;

[0037] Step 4: Bending: As the upper template 1 descends, the arc-shaped insert 3 mounted on the insert fixing plate 2 presses downward, cooperating with the rolling mounting bracket 8 to bend the front end of the profile product 10 to be processed upward. The rolling mounting bracket 8 supports the profile product 10 through the rolling support structure 9.

[0038] Step 5, mold opening: Start the punching machine, the hydraulic cylinder on the punching machine will drive the upper template 1 to rise, and at the same time the pressing plate 4 and the lower pad 6 will separate. At this time, the processed profile product 10 can be taken out from the groove on the lower pad 6.

[0039] See also Figures 1-6 A knife fixing plate 2 is fixedly installed under the upper template 1, and an arc-shaped knife 3 is fixedly installed on the rear of the knife fixing plate 2. A pressing plate 4 is fixedly installed in the middle of the knife fixing plate 2, and a punch 5 is fixedly installed on the pressing plate 4. A lower pad 6 is provided under the pressing plate 4, and a lower template 7 is provided under the lower pad 6. A rolling mounting bracket 8 is fixedly installed at the rear of the lower template 7, and a rolling support structure 9 is movably installed on the rolling mounting bracket 8. A positioning pin 11 is fixedly installed on the lower pad 6, wherein the arc-shaped knife 3, the punch 5, the rolling mounting bracket 8 and the positioning pin 11 are each provided in two groups, and the two groups of arc-shaped knifes 3, the punch 5, the rolling mounting bracket 8 and the positioning pin 11 are symmetrically arranged, so that the processing of two profile products 10 can be carried out at the same time, which can greatly improve work efficiency.

[0040] See also Figure 1-Figure 5The upper template 1, the insert fixing plate 2, the arc insert 3, the pressure plate 4 and the punch 5 are all rigidly connected, and the lower pad 6 and the lower template 7 are elastically connected. In this way, when the upper mold contacts the part, the reaction force provided by the lower mold spring can press the part tightly.

[0041] See also Figure 2 、 Figure 3 In step 1, the width of the groove on the rolling mounting bracket 8 is greater than the width of the area to be processed of the profile product 10, so that the area to be processed of the profile product 10 can be completely inserted into the groove on the rolling mounting bracket 8. The groove can limit the position of the arc-shaped inserting knife 3 to avoid deviation and the occurrence of defective products.

[0042] See also Figure 2 、 Figure 3 In step 2, the arc-shaped grooves on the pressing plate 4 and the lower plate 6 are processed according to the shape of the product, so that the profile product 10 can be pressed into a suitable curvature by applying pressure from the upper and lower sides of the pressing plate 4 and the lower plate 6.

[0043] See also Figure 2 、 Figure 3 The shape of the arc-shaped insert 3 in step 4 is consistent with the shape of the original part after rebounding, so that the profile product 10 can be formed into the required curvature by stamping the arc-shaped insert 3.

[0044] See also Figure 4 、 Figure 5 、 Figure 6 The arc-shaped insert 3 in step 4 is located between the lower pad 6 and the rolling support structure 9 supporting the profile product 10, and the rolling support structure 9 supports the profile product 10 from below, so that when the arc-shaped insert 3 is stamping the profile product 10, the lower pad 6 and the rolling support structure 9 can support the profile product 10 from both ends, so that the portion of the profile product 10 between the lower pad 6 and the rolling support structure 9 is bent. At the same time, the rolling support structure 9 will also roll in contact with the profile product 10 while the profile product 10 is bending, thereby avoiding scratches on the profile surface of the profile product 10 and improving product quality. At the same time, the diameter or position of the rolling support structure 9 can also be used to adjust the flange size.

[0045] See also Figure 2-Figure 5 In step 4, the rolling support structure 9 is a roller, a drum or a roller, and its cross-sectional shape matches the surface shape of the profile product 10 to be processed, thereby improving the degree of contact between the rolling support structure 9 and the profile product 10 during rolling contact, further reducing the wear of the rolling support structure 9 on the profile product 10 surface, and improving product quality. Example 1:

[0046] See also Figure 1-Figure 5A knife fixing plate 2 is fixedly installed under the upper template 1, an arc-shaped knife 3 is fixedly installed on the rear of the knife fixing plate 2, a pressing plate 4 is fixedly installed in the middle of the knife fixing plate 2, a punch 5 is fixedly installed on the pressing plate 4, a lower pad 6 is provided under the pressing plate 4, a lower template 7 is provided under the lower pad 6, a rolling mounting bracket 8 is fixedly installed at the rear of the lower template 7, a rolling support structure 9 is movably installed on the rolling mounting bracket 8, and a positioning pin 11 is fixedly installed on the lower pad 6.

[0047] There are two groups of arc-shaped inserts 3, punches 5, rolling mounting brackets 8, and positioning pins 11, and the two groups of arc-shaped inserts 3, punches 5, rolling mounting brackets 8 and positioning pins 11 are symmetrically arranged. There are multiple groups of rolling support structures 9, and they are distributed according to the curved shape of the profile product 10 to be processed. In this way, while maintaining linear contact between the rolling support structure 9 and the profile product 10, the accuracy of the curvature of the profile product 10 after bending can be guaranteed, and deformation will not be caused by the lack of support from the rolling support structure 9.

[0048] The upper template 1, the insert knife fixing plate 2, the arc insert knife 3, the pressing plate 4 and the punch 5 are all rigidly connected, and the lower pad 6 and the lower template 7 are elastically connected.

[0049] In step 1, the width of the groove on the rolling mounting bracket 8 is greater than the width of the area to be processed of the profile product 10.

[0050] In step 2, the arc-shaped grooves on the pressing plate 4 and the lower pad 6 are processed according to the shape of the product.

[0051] The shape of the arc-shaped insert 3 in step 4 matches the shape of the original part after rebound.

[0052] The arc-shaped insert 3 in step 4 is located between the lower pad 6 supporting the profile product 10 and the rolling support structure 9, and the rolling support structure 9 supports the profile product 10 from below.

[0053] The rolling support structure 9 in step 4 is a roller, a drum or a roller, and the cross-sectional shape is consistent with the surface shape of the profile product 10 to be processed. Example

[0054] See also Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 6A knife fixing plate 2 is fixedly installed under the upper template 1, an arc-shaped knife 3 is fixedly installed on the rear of the knife fixing plate 2, a pressing plate 4 is fixedly installed in the middle of the knife fixing plate 2, a punch 5 is fixedly installed on the pressing plate 4, a lower pad 6 is provided under the pressing plate 4, a lower template 7 is provided under the lower pad 6, a rolling mounting bracket 8 is fixedly installed at the rear of the lower template 7, a rolling support structure 9 is movably installed on the rolling mounting bracket 8, and a positioning pin 11 is fixedly installed on the lower pad 6.

[0055] There are two groups of arc-shaped inserts 3, punches 5, rolling mounting brackets 8, and positioning pins 11, and the two groups of arc-shaped inserts 3, punches 5, rolling mounting brackets 8 and positioning pins 11 are symmetrically arranged. There are multiple groups of rolling support structures 9, and they are distributed according to the curved shape of the profile product 10 to be processed. In this way, while maintaining linear contact between the rolling support structure 9 and the profile product 10, the accuracy of the curvature of the profile product 10 after bending can be guaranteed, and deformation will not be caused by the lack of support from the rolling support structure 9.

[0056] The upper template 1, the insert knife fixing plate 2, the arc insert knife 3, the pressing plate 4 and the punch 5 are all rigidly connected, and the lower pad 6 and the lower template 7 are elastically connected.

[0057] In step 1, the width of the groove on the rolling mounting bracket 8 is greater than the width of the area to be processed of the profile product 10.

[0058] In step 2, the arc-shaped grooves on the pressing plate 4 and the lower pad 6 are processed according to the shape of the product.

[0059] The shape of the arc-shaped insert 3 in step 4 is consistent with the profile of the original part after rebound. The tip of the arc-shaped insert 3 adopts a roller structure and is in rolling cooperation with the profile product 10 through line contact.

[0060] The arc-shaped insert 3 in step 4 is located between the lower pad 6 supporting the profile product 10 and the rolling support structure 9, and the rolling support structure 9 supports the profile product 10 from below.

[0061] The rolling support structure 9 in step 4 is a roller, a drum or a roller, and the cross-sectional shape is consistent with the surface shape of the profile product 10 to be processed.

[0062] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A special forming method for profiles, characterized in that: The steps include: Step 1, profile positioning: two profile products (10) to be processed are placed between the upper template (1) and the lower template (7), and the profile products (10) and the grooves on the lower template (7) are interlocked, and the positioning holes on the profile products (10) are sleeved on the positioning pins (11) on the lower pad (6). At this time, the front end of the profile product (10) to be processed is just stuck in the groove on the rolling mounting bracket (8), and the front end of the profile product (10) is placed on the rolling support structure (9) in the rolling mounting bracket (8); Step 2: bending the profile: start the punching machine, and the hydraulic cylinder on the punching machine will drive the upper template (1) to descend. At this time, the pressing plate (4) will cooperate with the lower pad (6) to bend the profile product (10) to a suitable curvature through the arc grooves on the pressing plate (4) and the lower pad (6); Step 3, local stamping: while the upper template (1) is descending, the punch (5) fixedly mounted on the press plate (4) will also descend, and the punch (5) will cooperate with the lower pad (6) to stamp the profile product (10), stamping out a suitable shape on the profile product (10); Step 4, bending processing: while the upper template (1) is lowered, the arc-shaped insert (3) installed on the insert fixing plate (2) is pressed down, and the area to be processed at the front end of the profile product (10) is bent upward in cooperation with the rolling mounting bracket (8), and the rolling mounting bracket (8) supports the profile product (10) through the rolling support structure (9); Step 5, mold opening: Start the punching machine, the hydraulic cylinder on the punching machine will drive the upper mold plate (1) to rise, and at the same time the pressing plate (4) and the lower pad (6) will separate. At this time, the processed profile product (10) can be taken out from the groove on the lower pad (6).

2. A special forming method for profiles according to claim 1, characterized in that: A knife fixing plate (2) is fixedly installed below the upper template (1), an arc-shaped knife (3) is fixedly installed at the rear of the knife fixing plate (2), a pressing plate (4) is fixedly installed in the middle of the knife fixing plate (2), a punch (5) is fixedly installed on the pressing plate (4), a lower pad (6) is provided below the pressing plate (4), a lower template (7) is provided below the lower pad (6), a rolling mounting bracket (8) is fixedly installed at the rear of the lower template (7), a rolling support structure (9) is movably installed on the rolling mounting bracket (8), and a positioning pin (11) is fixedly installed on the lower pad (6).

3. A special forming method for profiles according to claim 2, characterized in that: The arc-shaped insert blade (3), the punch (5), the rolling mounting bracket (8) and the positioning pin (11) are each provided in two groups, and the two groups of arc-shaped insert blades (3), the punch (5), the rolling mounting bracket (8) and the positioning pin (11) are both symmetrically arranged.

4. A special forming method for profiles according to claim 2, characterized in that: The upper template (1), the insert knife fixing plate (2), the arc insert knife (3), the pressing plate (4) and the punch (5) are all rigidly connected, and the lower pad (6) and the lower template (7) are elastically connected.

5. The special forming method for profiles according to claim 1, characterized in that: In the step 1, the width of the groove on the rolling mounting bracket (8) is greater than the width of the area to be processed of the profile product (10).

6. A special forming method for profiles according to claim 1, characterized in that: In the second step, the arc-shaped grooves on the pressing plate (4) and the lower pad (6) are processed according to the shape of the product.

7. A special forming method for profiles according to claim 1, characterized in that: The shape of the arc-shaped insert (3) in step 4 is consistent with the shape of the original part after rebound.

8. The special forming method for profiles according to claim 1, characterized in that: The arc-shaped insert (3) in step 4 is located between the lower pad (6) supporting the profile product (10) and the rolling support structure (9), and the rolling support structure (9) supports the profile product (10) from below.

9. The special forming method for profiles according to claim 1, characterized in that: The rolling support structure (9) in step 4 is a roller, a drum or a roller, and its cross-sectional shape matches the surface shape of the profile product (10) to be processed.

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