A flanging machine

Abstract

A flanging machine relates to the technical field of flanging processing. It comprises: a frame; an upper die, a lower die and a driving device for driving the upper die and the lower die to close the die; and a control device electrically connected to the driving device; at least one side of the outer edge of the working surface of any one of the upper die and the lower die is provided with an inclined groove whose volume increases from the inside to the outside, and a raised step perpendicular to the working surface and provided at the long edge of the outer side of the inclined groove; a slope complementary to the inclined groove and corresponding in position is provided on the working surface of the other of the upper die and the lower die. The above technical solution has the advantages of high processing accuracy, simple processing procedures, high production efficiency and simple structure.

Description

Technical Field

[0001] The invention relates to the technical field of flanging processing, and in particular to a flanging machine. Background Art

[0002] In daily life, flanging products can be seen everywhere, such as some auto parts, galvanized plates, green plates and other plates. According to the application requirements, they often need to be flanging processed. In the existing technology, flanging machines are used for processing.

[0003] For flanges that need to be vertical or less than 90 degrees, cold stamping dies are often used, and the flanges are directly flanged by the flange block or the inclined wedge is used for side flange. This process is prone to flange rebound, which affects the accuracy and quality of the workpiece. The remedial method used is to add a shaping process, that is, to achieve the required accuracy standard through manual or mechanical secondary processing. This processing method is inefficient and needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a flanging machine with the advantages of high processing accuracy, simple processing steps, high production efficiency and simple structure in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a flanging machine, comprising: a frame; an upper mold, a lower mold and a driving device for driving the upper mold and the lower mold to close the mold installed on the frame; and a control device electrically connected to the driving device; at least one side of the outer edge of the working surface of any one of the upper mold and the lower mold is provided with an inclined groove whose volume increases from the inside to the outside, and a raised step arranged at the long edge of the outer side of the inclined groove and perpendicular to the working surface; the working surface of the other of the upper mold and the lower mold is provided with a slope that is complementary to the inclined groove and has a corresponding position.

[0006] The angle between the bottom surface of the inclined groove and the working surface where it is located is greater than 0° and less than or equal to 10°.

[0007] The outer edges of the working surfaces of any one of the upper die and the lower die are provided with the inclined grooves and the raised steps, and the working surface of the other of the upper die and the lower die is provided with the slopes.

[0008] The upper die or the lower die where the raised step is located is provided with a plurality of demoulding structures extending in the direction of the slope and used for demoulding the processed product during demoulding.

[0009] The demoulding structure is in the shape of a hook, and the lateral distance between the hook portion and the outer side wall of the slope is greater than 0 and less than the thickness of the product to be processed.

[0010] The frame includes: a support platform; a mounting plate arranged above the support platform; and a guide shaft with two ends respectively fixedly connected to the mounting plate and the support platform; the upper mold is slidably mounted on the guide shaft, and the driving device is fixedly mounted on the mounting plate, which is also connected to the upper mold and drives the upper mold to slide along the guide shaft for mold closing or demolding.

[0011] After adopting the above technical scheme, the beneficial effects of the present invention are as follows: a flanging machine includes: a frame; an upper mold, a lower mold and a driving device for driving the upper mold and the lower mold to close the mold installed on the frame; and a control device electrically connected to the driving device; at least one side of the outer edge of the working surface of any one of the upper mold and the lower mold is provided with an inclined groove whose volume increases from the inside to the outside, and a raised step arranged at the long edge of the outer side of the inclined groove and perpendicular to the working surface; the working surface of the other of the upper mold and the lower mold is provided with a slope that is complementary to the inclined groove and has a corresponding position.

[0012] When flanging is performed, the upper mold and the lower mold are closed, and the part of the product to be processed is pressed to the bottom of the inclined groove through the slope, so that the part of the product to be processed pressed on the bottom of the inclined groove is bent relative to the middle part, and under the action of the raised step, the flanging is completed. After the mold is opened, the flanging part rebounds slightly, and at the same time, the part of the processed product pressed on the bottom of the inclined groove rebounds autonomously or passively, thereby providing rebound compensation for the flanging part, thereby meeting the requirements of flanging accuracy, and has the advantages of high processing accuracy, simple processing steps, high production efficiency and simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a schematic diagram of the structure of the present invention;

[0015] Figure 2 yes Figure 1 Enlarged view of detail A

[0016] Figure 3 is a half-section view of the present invention;

[0017] Figure 4 yes Figure 3 Enlarged view of detail B.

[0018] Explanation of the accompanying drawings: 1. Frame; 2. Upper mold; 3. Lower mold; 4. Driving device; 5. Control device; 6. Raised step; 7. Inclined groove; 8. Demolding structure; 9. Base; 10. Mounting plate; 11. Guide shaft; 12. Slope. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0020] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

[0021] Example 1

[0022] This embodiment relates to a flanging machine, such as Figure 1-4 As shown, it includes: a frame 1, an upper mold 2, a lower mold 3, a driving device 4 and a control device 5.

[0023] The upper mold 2, the lower mold 3 and the driving device 4 are all installed on the frame 1. The driving device 4 is used to drive the upper mold 2 and the lower mold 3 to close or open the mold. The control device 5 is electrically connected to the driving device 4 and is used to control the driving device 4 to close or open the mold. An inclined groove 7 is provided at the outer edge of at least one side of the working surface of the lower mold 3, and the volume of the inclined groove 7 increases from the inside to the outside, and a raised step 6 is provided at the long edge of the outer side of the inclined groove 7 and is perpendicular to the working surface. A slope 12 complementary to the inclined groove 7 and corresponding in position is provided on the working surface of the upper mold 2.

[0024] When flanging, it is necessary to first lay the product to be processed flat on the lower mold 3 and cover it on the inclined groove 7 and the raised step 6. The control device 5 controls the driving device 4 according to the set program to drive the upper mold 2 and the lower mold 3 to close the mold. The slope 12 presses the product to be processed to the bottom of the inclined groove 7, so that the part of the product to be processed pressed on the bottom of the inclined groove 7 is bent relative to the middle part. At the same time, under the action of the raised step 6, the flanging is completed, and then the mold is opened after 1-3 seconds of full pressure. After the mold is opened, the flanging part has a small rebound phenomenon, and the part of the product pressed on the bottom of the inclined groove 7 rebounds autonomously or passively, thereby providing rebound compensation for the flanging part, thereby meeting the requirements of flanging accuracy.

[0025] In actual operation, the springback amplitude of the product to be processed is obtained through a limited number of tests, and the angle between the inclined groove 7 and the working surface is set according to the springback amplitude and the precision requirement of the flanging. For example, if the springback amplitude of the flanging of the product to be processed is 0-3 degrees and the flanging precision is required to be 88-90 degrees, the slope of the inclined groove 7 should be set to 3 degrees.

[0026] Furthermore, in order to allow the part of the processed product pressed against the bottom of the inclined groove 7 to rebound autonomously, the angle between the bottom of the inclined groove 7 and the working surface where it is located is greater than 0° and less than or equal to 10°. The maximum width of the bottom of the inclined groove 7 is 30 mm to 70 mm, and the angle between the bottom of the inclined groove 7 and the working surface is rounded.

[0027] Furthermore, in order to improve the efficiency of flanging processing, the outer edges of each side of the working surface of the lower mold 3 are provided with the inclined groove 7 and the raised step 6, and the working surface of the upper mold 2 is correspondingly provided with the slope 12. By closing the mold once, each side of the product is flanging processed at the same time, which significantly improves the processing efficiency.

[0028] Furthermore, the lower mold 3 is provided with a demoulding structure 8 extending in the direction of the slope 12, and the demoulding structure 8 is used to demould the processed product during demoulding. The demoulding structure 8 is in the shape of a hook, and the lateral distance between the hook and the outer side wall of the slope 12 is greater than 0 and less than the thickness of the product to be processed, and the height of the hook from the raised step 6 is greater than the height of the flange. When the mold is opened, as the upper mold 2 rises with the processed product, the demoulding structure 8 will hook the end of the flange and separate it from the upper mold 2.

[0029] Furthermore, the frame 1 includes: a support platform 9, a mounting plate 10 and a guide shaft 11.

[0030] The mounting plate 10 is disposed above the support platform 9. Both ends of the guide shaft 11 are fixedly connected to the mounting plate 10 and the support platform 9. The upper mold 2 is slidably mounted on the guide shaft 11, and the driving device 4 is fixedly mounted on the mounting plate 10, which is also connected to the upper mold 2 and drives the upper mold 2 to slide along the guide shaft 11 for mold closing or demolding.

[0031] In this embodiment, the driving device 4 includes two air cylinders and a hydraulic cylinder disposed between the two air cylinders, and both the air cylinders and the hydraulic cylinder are fixedly mounted on the mounting plate 10 by fasteners, and their piston rods pass through the mounting plate 10 and are fixed to a side of the upper mold 2 away from the lower mold 3. In other embodiments, the driving device 4 includes only one of the air cylinder and the hydraulic cylinder.

[0032] The working principle of the present invention is as follows: when flanging, the product to be processed needs to be laid flat on the lower die 3 and covered on the inclined groove 7 and the raised step 6. The control device 5 controls the driving device 4 according to the set program to drive the upper die 2 and the lower die 3 to close the mold. The slope 12 presses the product to be processed to the bottom surface of the inclined groove 7, so that the part of the product to be processed pressed on the bottom surface of the inclined groove 7 is bent relative to the middle part. At the same time, under the action of the raised step 6, the flanging is completed, and then the mold is opened after 1-3 seconds of full pressure. When the mold is opened, as the upper die 2 rises with the processed product, the demoulding structure 8 will hook the end of the flanging part and separate it from the upper die 2. After the mold is opened, the flanging part rebounds slightly, and the part of the product pressed on the bottom surface of the inclined groove 7 rebounds autonomously or passively, thereby providing rebound compensation for the flanging part, thereby meeting the requirements of flanging accuracy.

[0033] Example 2

[0034] The main difference between this embodiment and Embodiment 1 is that the inclined groove 7 and the raised step 6 are arranged on the upper mold 2, the slope 12 is arranged on the lower mold 3 corresponding to the inclined groove 7, and the demoulding structure 8 is also arranged on the upper mold 2.

[0035] The above is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A flanging machine, It is characterized in that include: A frame (1); an upper mold (2), a lower mold (3) and a driving device (4) for driving the upper mold (2) and the lower mold (3) to close the mold, which are mounted on the frame (1); and a control device (5) electrically connected to the driving device (4); An inclined groove (7) whose volume increases from the inside to the outside is provided at at least one outer edge of the working surface of any one of the upper mold (2) and the lower mold (3), and a raised step (6) which is provided at the long edge outside the inclined groove (7) and is perpendicular to the working surface; A slope (12) which is complementary to the inclined groove (7) and has a corresponding position is provided on the working surface of the other of the upper die (2) and the lower die (3).

2. The flanging machine according to claim 1, It is characterized in that The angle between the bottom surface of the inclined groove (7) and the working surface on which it is located is greater than 0° and less than or equal to 10°.

3. The flanging machine according to claim 1 or 2, It is characterized in that The outer edges of the working surfaces of either the upper die (2) or the lower die (3) are provided with the inclined groove (7) and the raised step (6), and the working surface of the other of the upper die (2) and the lower die (3) is provided with the slope (12).

4. The flanging machine according to claim 3, It is characterized in that The upper mold (2) or the lower mold (3) where the raised step (6) is located is provided with a plurality of demoulding structures (8) extending in the direction of the slope (12) and used for demoulding the processed product during demoulding.

5. The flanging machine according to claim 4, It is characterized in that The demoulding structure (8) is in the shape of a hook, and the lateral distance between the hook portion and the outer side wall of the slope (12) is greater than 0 and less than the thickness of the product to be processed.

6. The flanging machine according to claim 1, It is characterized in that The frame (1) comprises: a support platform (9); a mounting plate (10) arranged above the support platform (9); and, The two ends are respectively fixedly connected to the mounting plate (10) and the guide shaft (11) of the support platform (9); The upper mold (2) is slidably mounted on the guide shaft (11), and the driving device (4) is fixedly mounted on the mounting plate (10). It is also connected to the upper mold (2) and drives the upper mold (2) to slide along the guide shaft (11) to perform mold closing or demolding.

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