Metal plate bending die with adjustable bending angle

Abstract

The utility model belongs to the technical field of bending dies, and particularly relates to a bending-angle-adjustable metal plate bending die which comprises a lower die base, a lower base plate is arranged at the upper end of the lower die base, a female die plate is arranged at the upper end of the lower base plate, an upper stripping plate is arranged at the upper end of the female die plate, and a stop plate is arranged at the upper end of the upper stripping plate. And a fixing plate is arranged at the upper end of the stopping plate. Through the arrangement of the bending sliding block base, the sliding shaft, the first sliding ejector rod, the ejector block and other structures, the bending sliding block can be subjected to receding bending treatment, the position of the bending sliding block base can be adjusted under the telescopic action of the air cylinder, then the bending contact point of the bending sliding block is adjusted, and finally follow-up angle-adjustable bending treatment is completed; the plug can be pulled to be separated from the flow guide hole under structures such as a micro motor and a pull wire, so that the lubricating oil is in contact with the oil absorption cotton sleeve, and finally the lubricating operation on the cylinder is completed to reduce the telescopic resistance of the cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of bending dies, in particular to a bending angle adjustable metal plate bending die. Background Art

[0002] In the hardware industry, relief bending is a relatively common feature. Due to the bending requirements, the inner side of the bending is affected by other features, and the bending needs to avoid positions, so a slider bending is required. In the existing conventional slider process, there are often phenomena of jamming and immobility. Even when the sliding is not smooth, there is a risk of cracking. In the prior art, the bending slider and the bending slider seat adopt a 30° self-locking combined sliding. This self-locking angle has a large sliding friction force and requires a large ejection force. Due to the large friction force, frictional heat is generated, and the slider wears quickly. When the slider disengages from the slider seat, it is very easy to jam, causing the product to be deformed by pressing. And during the sliding process, the product jams and cannot disengage or reset, which is very easy to cause cracking and damage the die. Whether it is jamming or jamming, it will cause product deformation or die damage, directly affecting product delivery. And the bending slider seat and the upper ejector plate are fixedly designed, so that the contact points between the bending slider, the bending slider seat and the upper ejector plate are fixed, thus making it difficult to perform adjustable operations on the bending angle. Therefore, improvements are needed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a bending angle adjustable metal plate bending die, which solves the problems that in the existing conventional slider process, there are often phenomena of jamming and immobility. Even when the sliding is not smooth, there is a risk of cracking. In the prior art, the bending slider and the bending slider seat adopt a 30° self-locking combined sliding. This self-locking angle has a large sliding friction force and requires a large ejection force. Due to the large friction force, frictional heat is generated, and the slider wears quickly. When the slider disengages from the slider seat, it is very easy to jam, causing the product to be deformed by pressing. And during the sliding process, the product jams and cannot disengage or reset, which is very easy to cause cracking and damage the die. Whether it is jamming or jamming, it will cause product deformation or die damage, directly affecting product delivery. And it solves the problem that the bending slider seat and the upper ejector plate are fixedly designed, so that the contact points between the bending slider, the bending slider seat and the upper ejector plate are fixed, thus making it difficult to perform adjustable operations on the bending angle.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a metal plate bending mold with adjustable bending angle, comprising a lower mold base, a lower pad is arranged on the upper end of the lower mold base, a concave mold plate is arranged on the upper end of the lower pad, an upper stripping plate is arranged on the upper end of the concave mold plate, a stop plate is arranged on the upper end of the upper stripping plate, a fixed plate is arranged on the upper end of the stop plate, an upper pad is arranged on the upper end of the fixed plate, an upper mold base is arranged on the upper end of the upper pad, an inner side wall of the upper stripping plate is slidably connected with a bending slider seat, a sliding shaft is arranged on the inner wall of the inclined slide groove of the bending slider seat, a bending slider is contacted with the left side of the bending slider seat, the bending slider is in contact with the sliding shaft, the upper pad, the fixed plate and the stop plate are arranged on the upper end of the stop plate. A sliding push rod 1 is commonly provided inside the plate, and the sliding push rod 1 contacts with the bending slider, and a push rod spring 1 is welded to the upper end of the sliding push rod 1, and the other end of the push rod spring 1 is welded to a spring seat 1 of the upper die seat, and the push rod spring 1 contacts with the upper die seat and the upper pad, and a sliding push rod 2 is commonly provided inside the lower die seat and the lower pad, and the sliding push rod 2 contacts with the concave die plate, and a push rod spring 2 is welded to the lower end of the sliding push rod 2, and the other end of the push rod spring 2 is welded to a spring seat 2 of the lower die seat, and the push rod spring 2 contacts with the lower die seat, and a push block is provided at the upper end of the sliding push rod 2, and the push block contacts with the concave die plate, the push block contacts with the bending slider, and the push block contacts with the upper stripping plate.

[0005] Preferably, an adjusting mechanism is provided inside the upper stripping plate, and the adjusting mechanism includes a cylinder, the inner right side wall of the upper stripping plate is fixedly mounted with the cylinder, the telescopic end of the cylinder is fixedly connected to the bending slider seat, the inner right side wall of the upper stripping plate and the upper side of the cylinder are fixedly connected with a support plate, the interior of the support plate is fixedly connected with a guide tube, the outer side of the guide tube is fixedly sleeved with an oil storage cylinder, the upper end of the support plate is fixedly connected with an oil storage box, the inner left side wall of the oil storage box is fixedly mounted with a micro motor, the output shaft of the micro motor is provided with a traction line, and the lower end of the traction line is fixedly A plug is fixedly connected, and a guide plate is fixedly connected to the inner left wall of the oil storage box and located at the lower side of the micro motor. The guide plate is slidably connected to the traction line, and a supporting spring is arranged on the outer side of the traction line. Through the telescopic action of the cylinder, the bending slider seat can be pulled to move, and then the contact point of the bending slider in the dynamic bending process can be adjusted, and the bending angle of the bending slider can be adjusted. Under the structure of the micro motor, traction line, etc., the plug can be pulled out of the guide hole of the support plate to guide the lubricating oil, and finally the lubricating oil is brought into contact with the telescopic end of the cylinder to lubricate the cylinder.

[0006] Preferably, an oil-absorbing cotton sleeve is fixedly connected to the inner wall of the oil storage cylinder, and the oil-absorbing cotton sleeve is slidably connected to the telescopic end of the cylinder. Through the provision of the oil-absorbing cotton sleeve, the lubricating oil can be absorbed and used.

[0007] Preferably, the plug is slidably connected to the oil storage box and the diversion hole of the support piece. By providing the plug, the diversion hole of the support piece can be blocked.

[0008] Preferably, one end of the support spring is welded to the guide plate, and the other end of the support spring is welded to the plug. By providing the support spring, the plug can be tightly pressed.

[0009] Preferably, the oil storage cylinder is in contact with the end face of the cylinder and is slidably connected to the telescopic end of the cylinder. By providing the oil storage cylinder, the problem of lubricating oil leakage can be avoided.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. Through the arrangement of structures such as the bent slider seat, sliding shaft, first sliding ejector rod, and top block, the present utility model can perform a bending and yielding process on the bent slider. Under the telescopic action of the cylinder, the position of the bent slider seat can be adjusted, and then the bending contact point of the bent slider can be adjusted, finally completing the subsequent angle-adjustable bending process. Under the structures such as the micro motor and traction wire, the plug can be pulled away from the diversion hole, enabling the lubricating oil to contact the oil-absorbing cotton sleeve, and finally completing the lubrication operation of the cylinder to reduce the telescopic resistance of the cylinder.

[0012] 2. In the present utility model, the bent slider and the bent slider seat adopt an axial moving and sliding matching combination. The traditional slider and slider seat adopt a 30° self-locking matching mode, while the new process slider and slider seat adopt a 0° matching. The traditional slider and slider seat have a surface contact sliding, while the new process slider and slider seat have a line contact rolling. The new slider matching has a small friction force and already has a self-sliding effect, with extremely low requirements for the sliding ejection force, avoiding the jamming phenomenon caused by the failure of the ejector rod spring; the research scheme of the new sliding method simplifies the processing, without the need for a buckling slope, and all are straight lines, ensuring the processing accuracy; the matching mode of the new slider and slider seat has a small friction coefficient, and the slider accuracy is guaranteed for a long time, enabling normal and stable production; the new process adds an axial connection sliding, converting the force friction into an axial moving and sliding micro-friction, without jamming; through measures such as adding a rotating shaft, zero-angle matching, research on the contact method, and ensuring other processing schemes, and optimizing the ejection force, the problems of slider sliding jamming and jamming are improved, thus meeting the quality requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is of the present utility model Figure 1 is a three-dimensional view of the bent slider seat;

[0015] Figure 3For the present utility model Figure 2 Side view of the bending slider seat

[0016] Figure 4 For the present utility model Figure 1 Enlarged view of the adjusting mechanism

[0017] Figure 5 For the present utility model Figure 4 Enlarged view at position A

[0018] In the figure: 1, lower die holder; 2, lower backing plate; 3, concave template; 4, upper stripper plate; 5, stop plate; 6, fixing plate; 7, upper backing plate; 8, upper die holder; 9, bending slider seat; 10, sliding shaft; 11, bending slider; 12, first sliding ejector rod; 13, first ejector rod spring; 14, second sliding ejector rod; 15, second ejector rod spring; 16, ejector block; 17, adjusting mechanism; 171, cylinder; 172, support piece; 173, diversion pipe; 174, oil storage cylinder; 175, oil absorption cotton sleeve; 176, oil storage box; 177, micro motor; 178, traction wire; 179, plug; 180, guide plate; 181, support spring Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model

[0020] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5, A bending angle adjustable metal plate bending die, comprising a lower die base 1, a lower backing plate 2 is arranged at the upper end of the lower die base 1, a concave template 3 is arranged at the upper end of the lower backing plate 2, an upper stripping plate 4 is arranged at the upper end of the concave template 3, a stop plate 5 is arranged at the upper end of the upper stripping plate 4, a fixing plate 6 is arranged at the upper end of the stop plate 5, an upper backing plate 7 is arranged at the upper end of the fixing plate 6, an upper die base 8 is arranged at the upper end of the upper backing plate 7, a bending slider seat 9 is slidably connected to the inner side wall of the upper stripping plate 4, a sliding shaft 10 is arranged on the inner wall of the inclined chute of the bending slider seat 9, a bending slider 11 is in contact with the left side of the bending slider seat 9, the bending slider 11 is in contact with the sliding shaft 10, a first sliding ejector rod 12 is jointly arranged inside the upper backing plate 7, the fixing plate 6 and the stop plate 5, the first sliding ejector rod 12 is in contact with the bending slider 11, a first ejector rod spring 13 is welded to the upper end of the first sliding ejector rod 12, the other end of the first ejector rod spring 13 is welded to the first spring seat of the upper die base 8, the first ejector rod spring 13 is in contact with the upper die base 8 and the upper backing plate 7, a second sliding ejector rod 14 is jointly arranged inside the lower die base 1 and the lower backing plate 2, the second sliding ejector rod 14 is in contact with the concave template 3, a second ejector rod spring 15 is welded to the lower end of the second sliding ejector rod 14, the other end of the second ejector rod spring 15 is welded to the second spring seat of the lower die base 1, the second ejector rod spring 15 is in contact with the lower die base 1, a top block 16 is arranged at the upper end of the second sliding ejector rod 14, the top block 16 is in contact with the concave template 3, the top block 16 is in contact with the bending slider 11, and the top block 16 is in contact with the upper stripping plate 4.

[0021] Please refer to Figure 1 , Figure 4 , Figure 5, an adjusting mechanism 17 is arranged inside the upper stripping plate 4. The adjusting mechanism 17 includes a cylinder 171. The right inner side wall of the upper stripping plate 4 is fixedly installed with the cylinder 171. The telescopic end of the cylinder 171 is fixedly connected to the bending slider seat 9. The right inner side wall of the upper stripping plate 4 and above the cylinder 171 is fixedly connected with a support piece 172. A diversion pipe 173 is fixedly connected inside the support piece 172. An oil storage cylinder 174 is fixedly sleeved outside the diversion pipe 173. The upper end of the support piece 172 is fixedly connected with an oil storage box 176. A micro motor 177 is fixedly installed on the left inner side wall of the oil storage box 176. A traction wire 178 is arranged on the output shaft of the micro motor 177. The lower end of the traction wire 178 is fixedly connected with a plug 179. The left inner side wall of the oil storage box 176 and below the micro motor 177 is fixedly connected with a guide plate 180. The guide plate 180 is slidably connected with the traction wire 178. A support spring 181 is arranged outside the traction wire 178. Through the telescopic action of the cylinder 171, the bending slider seat 9 can be pulled to move, so as to adjust the contact point during the dynamic bending process of the bending slider 11, and the bending angle of the bending slider 11 can be adjusted. Under the structures such as the micro motor 177 and the traction wire 178, the plug 179 can be pulled to disengage from the diversion hole of the support piece 172 to conduct diversion treatment on the lubricating oil, and finally the lubricating oil contacts with the telescopic end of the cylinder 171 to lubricate the cylinder 171.

[0022] Please refer to Figure 1 , Figure 4 , the oil storage cylinder 174 contacts with the end face of the cylinder 171, and the oil storage cylinder 174 is slidably connected with the telescopic end of the cylinder 171. Through the setting of the oil storage cylinder 174, the leakage problem of the lubricating oil can be avoided. An oil absorbing cotton sleeve 175 is fixedly connected to the inner wall of the oil storage cylinder 174, and the oil absorbing cotton sleeve 175 is slidably connected with the telescopic end of the cylinder 171. Through the setting of the oil absorbing cotton sleeve 175, the lubricating oil can be adsorbed and used.

[0023] Please refer to Figure 1 , Figure 4 , Figure 5 , the plug 179 is slidably connected with the oil storage box 176 and the diversion hole of the support piece 172. Through the setting of the plug 179, the diversion hole of the support piece 172 can be blocked. One end of the support spring 181 is welded to the guide plate 180, and the other end of the support spring 181 is welded to the plug 179. Through the setting of the support spring 181, the plug 179 can be tightly pressed for use.

[0024] The specific implementation process of the present utility model is as follows:

[0025] 1. The bending slider 11 and the bending slider seat 9 adopt an axial sliding and mating combination, avoiding the traditional 30° self-locking mating mode between the slider and the slider seat. The new process bending slider 11 and the bending slider seat 9 adopt a 0° mating. The traditional slider and the slider seat are in surface contact sliding, while the new process bending slider 11 and the bending slider seat 9 are in line contact rolling. The cooperation between the new bending slider 11 and the bending slider seat 9 has a small friction force and already has a self-sliding effect, with extremely low requirements for the sliding ejection force, avoiding the jamming phenomenon caused by the failure of the ejector rod spring 13 and the ejector rod spring 15.

[0026] 2. The research plan of the new sliding method simplifies the processing. There is no need for a fastening slope, and all are straight lines, ensuring the processing accuracy. The cooperation mode between the new bending slider 11 and the bending slider seat 9 has a small friction coefficient, and the slider accuracy is guaranteed for a long time, enabling normal and stable production. The new process adds an axial connection sliding, converting the force friction into an axial rotation and micro-friction, without jamming.

[0027] 3. Through measures such as adding a sliding shaft 10, zero-angle mating, research and development of the contact method, and ensuring other processing plans, as well as optimizing the ejection force, the problems of slider sliding jamming and sticking are improved, thus meeting the quality requirements.

[0028] 4. Through the telescopic action of the air cylinder 171, the bending slider seat 9 can be pulled to move, adjusting the position of the bending slider seat 9, and then adjusting the dynamic bending contact point of the subsequent bending slider 11 to achieve adjustable bending angle operation for subsequent operations.

[0029] 5. The output shaft is driven to rotate by the micro-motor 177 to wind up the traction wire 178, pulling the plug 179 upward. Under the action of the guide plate 180, the support spring 181 deforms. Finally, the plug 179 disengages from the diversion hole of the support piece 172. Under the action of the diversion pipe 173, the lubricating oil can be diverted, enabling the lubricating oil to flow into the oil-absorbing cotton sleeve 175 and finally contact the telescopic end of the air cylinder 171 to lubricate the telescopic end of the air cylinder 171 and reduce the telescopic resistance of the air cylinder 171.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal plate bending die with adjustable bending angle, comprising a lower die base (1), characterized in that: The upper end of the lower die base (1) is provided with a lower pad (2), the upper end of the lower pad (2) is provided with a concave die plate (3), the upper end of the concave die plate (3) is provided with an upper stripping plate (4), the upper end of the upper stripping plate (4) is provided with a stop plate (5), the upper end of the stop plate (5) is provided with a fixed plate (6), the upper end of the fixed plate (6) is provided with an upper pad (7), the upper end of the upper pad (7) is provided with an upper die base (8), and the upper stripping plate (4) is provided with a stop plate (5). The inner side wall of the plate (4) is slidably connected with a bending slider seat (9), the inner wall of the inclined slide groove of the bending slider seat (9) is provided with a sliding shaft (10), the left side of the bending slider seat (9) is in contact with a bending slider (11), the bending slider (11) is in contact with the sliding shaft (10), and the upper pad (7), the fixed plate (6) and the stop plate (5) are jointly provided with a sliding push rod (12), and the sliding push rod (12) is in contact with the bending slider ( 11), the upper end of the sliding push rod 1 (12) is welded with a push rod spring 1 (13), the other end of the push rod spring 1 (13) is welded with a spring seat 1 of the upper die seat (8), the push rod spring 1 (13) is in contact with the upper die seat (8) and the upper pad (7), the lower die seat (1) and the lower pad (2) are jointly provided with a sliding push rod 2 (14) inside, the sliding push rod 2 (14) is in contact with the concave die plate (3), the sliding push rod A second push rod spring (15) is welded to the lower end of the second push rod (14), the other end of the second push rod spring (15) is welded to the second spring seat of the lower die seat (1), the second push rod spring (15) is in contact with the lower die seat (1), and a push block (16) is arranged at the upper end of the second sliding push rod (14), the push block (16) is in contact with the concave die plate (3), the push block (16) is in contact with the bending slide block (11), and the push block (16) is in contact with the upper stripping plate (4).

2. The metal plate bending die with adjustable bending angle according to claim 1, characterized in that: An adjusting mechanism (17) is provided inside the upper stripping plate (4), and the adjusting mechanism (17) comprises a cylinder (171). The cylinder (171) is fixedly installed on the inner right side wall of the upper stripping plate (4), and the telescopic end of the cylinder (171) is fixedly connected to the bending slide seat (9). A support plate (172) is fixedly connected to the inner right side wall of the upper stripping plate (4) and located on the upper side of the cylinder (171). A guide tube (173) is fixedly connected inside the support plate (172), and an oil storage cylinder (174) is fixedly sleeved on the outer side of the guide tube (173). The support plate (172) is fixedly connected to the inner right side wall of the upper stripping plate (4), and an oil storage cylinder (174) is fixedly sleeved on the outer side of the guide tube (173). An oil storage box (176) is fixedly connected to the upper end of the oil storage box (172), a micro motor (177) is fixedly installed on the inner left wall of the oil storage box (176), a traction line (178) is provided on the output shaft of the micro motor (177), a plug (179) is fixedly connected to the lower end of the traction line (178), a guide plate (180) is fixedly connected to the inner left wall of the oil storage box (176) and located below the micro motor (177), the guide plate (180) is slidably connected to the traction line (178), and a support spring (181) is provided on the outer side of the traction line (178).

3. The metal plate bending die with adjustable bending angle according to claim 2, characterized in that: An oil-absorbing cotton sleeve (175) is fixedly connected to the inner wall of the oil storage cylinder (174), and the oil-absorbing cotton sleeve (175) is slidably connected to the telescopic end of the cylinder (171).

4. The metal plate bending die with adjustable bending angle according to claim 2, characterized in that: The plug (179) is slidably connected to the oil storage box (176), and the plug (179) is slidably connected to the guide hole of the support sheet (172).

5. The metal plate bending die with adjustable bending angle according to claim 2, characterized in that: One end of the support spring (181) is welded to the guide plate (180), and the other end of the support spring (181) is welded to the plug (179).

6. The metal plate bending die with adjustable bending angle according to claim 2, characterized in that: The oil storage cylinder (174) contacts the end surface of the cylinder (171), and the oil storage cylinder (174) is slidably connected to the telescopic end of the cylinder (171).

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