Bending machine for metal fittings
By designing a cleaning mechanism in the bending machine for metal accessories, the appearance defects of metal accessories caused by particles in the lower die are solved, and the effect of reducing frictional damage and ensuring appearance integrity is achieved.
Patent Information
- Application Number
- CN202421988024.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-16
AI Technical Summary
During the processing of metal accessories, the curved arc grooves in the undercut die are prone to fall into particle foreign matter, resulting in flat or depression at the bends of the metal accessories, resulting in appearance defects.
A bending machine for metal accessories is designed, equipped with a cleaning mechanism, including a cleaning rack, a scraper and a screw. The screw is driven by the motor to rotate, so that the cleaning rack slides and the scraper scrapes away particles of foreign matter in the mold groove, while the sponge block is applied with lubricating oil to reduce friction.
Effectively clean the particles of foreign matter in the undercut die, reduce frictional damage during bending of metal accessories, avoid flat or depression, and ensure the appearance integrity of metal accessories.
Smart Images
Figure CN222902248U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal fittings, and particularly relates to a bending machine for metal fittings. Background Technique
[0002] A bending machine for metal fittings is an efficient metal processing equipment, which is specifically used for bending metal plates into required shapes. It is controlled by a numerical control system to achieve precise adjustment of slider depth, inclination and speed, ensuring processing accuracy, and is an indispensable tool for metal processing;
[0003] During the process of using the bending machine to process metal fittings, the bending machine bends the plate-shaped metal material into the required shape of the metal fitting through the cooperation of the upper punching die in the pressurizing device and the lower punching die on the workbench. One of the important equipment for processing metal fittings - the lower punching die is provided with a specific bending arc groove to ensure that the bent shape of the metal fitting is relatively natural and the bending surface is relatively good. However, various particulate foreign matters are likely to fall into the bending arc groove in the lower punching die. When the lower punching die pushes the metal plate onto the lower punching die, it is easy to cause the bent part of the bent metal fitting to appear flat or sunken, and then cause appearance defect problems of the bent metal fitting. Therefore, a bending machine for metal fittings is proposed for the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a bending machine for metal fittings to solve the problem that various particulate foreign matters are likely to fall into the bending arc groove in the lower punching die, and then when the lower punching die pushes the metal plate onto the lower punching die, it is easy to cause the bent part of the bent metal fitting to appear flat or sunken, and then cause appearance defect problems of the bent metal fitting.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A bending machine for metal fittings, including a machine case, a lower punching die, a control device and an upper punching die. The lower punching die is fixedly connected to the outside of the machine case. The lower punching die includes a lower punching die body. A fixed block is fixedly connected to the outside of the lower punching die body. A guide rod is fixedly connected to the outside of the fixed block. A limiting frame is fixedly connected to the outside of the lower punching die body. A cleaning mechanism is slidably connected to the outside of the lower punching die body. The cleaning mechanism includes a cleaning frame. A sliding ball is slidably connected to the inside of the cleaning frame. A scraping plate is fixedly connected to the outside of the cleaning frame. A connecting column is fixedly connected to the outside of the scraping plate. A sponge block is arranged on the outside of the connecting column. A sliding hole is opened in the inside of the cleaning frame. An oil injection hole is opened in the inside of the cleaning frame. A threaded hole is opened in the inside of the cleaning frame. A screw rod is spirally connected to the inside of the threaded hole. One end of the screw rod is fixedly connected to a motor through a motor spindle. The control device is fixedly connected to the outside of the machine case. The upper punching die is arranged on the outside of the control device.
[0007] As a further optimized content of the present utility model, among which: there are two fixing blocks in total, the fixing blocks are fixedly connected by a guide rod, and the fixing blocks are arranged on the side of the lower punch die body away from the control device.
[0008] As a further optimized content of the present utility model, among which: the screw rod is arranged on the side of the lower punch die body close to the control device, the screw rod rotates inside the limiting frame, and the screw rod and the guide rod are on the same horizontal plane.
[0009] As a further optimized content of the present utility model, among which: there are four sliding balls in total, the sliding balls are symmetrically arranged in pairs inside the cleaning frame, and the sliding balls are in close contact with the lower punch die body.
[0010] As a further optimized content of the present utility model, among which: there are two scraping plates in total, the scraping plates are parallel to each other on a straight line in the same horizontal plane, the scraping plates are connected to each other by a connecting column, and the scraping plates are in close contact with the die groove opened inside the lower punch die body.
[0011] As a further optimized content of the present utility model, among which: the cross-sectional shape of the sponge block is the same as that of the scraping plate, the sponge block is in close contact with the die groove opened inside the lower punch die body, and the oil injection hole is arranged directly above the sponge block.
[0012] As a further optimized content of the present utility model, among which: the cleaning frame slides on the outside of the guide rod through a sliding hole, and the side cross-section of the cleaning frame is "concave" shaped.
[0013] Compared with the prior art, the beneficial effects of the present utility model are:
[0014] In the present utility model, through the arranged cleaning frame, scraping plate and screw rod, before using the bending machine for metal fittings, the motor can be started to control the screw rod to rotate spirally in the cleaning frame, so that the cleaning frame outside the lower punch die body can be driven to slide, and then the scraping plate fixedly connected to the cleaning frame can scrape away the granular foreign matters in the die groove of the lower punch die body, and the sponge block soaked with lubricating oil can wipe the die groove of the lower punch die body with lubricating oil, so that the metal fittings can be smoothly processed into the required shape in the lower punch die body, reducing the frictional damage of the lower punch die body to the metal fittings, effectively avoiding the phenomenon that the bent part of the bent metal fittings appears flat or sunken, and ensuring the appearance integrity of the bent metal fittings. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0016] Figure 2 is a schematic diagram of the cleaning mechanism structure of the present utility model;
[0017] Figure 3 For the present utility model Figure 1 is a schematic structural diagram of part A in the present utility model;
[0018] Figure 4 is a schematic structural diagram of the guide rod of the present utility model;
[0019] Figure 5 is a schematic internal structural diagram of the cleaning rack of the present utility model.
[0020] In the figure: 1, chassis; 2, lower punching die; 21, lower punching die body; 22, fixing block; 23, guide rod; 24, limiting frame; 25, cleaning mechanism; 251, cleaning rack; 252, sliding ball; 253, scraping plate; 254, connecting column; 255, sponge block; 256, sliding hole; 257, oil injection hole; 258, threaded hole; 259, screw; 3, control device; 4, upper punching die; 5, motor. Specific embodiments
[0021] 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 the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0022] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or their combinations.
[0023] Please refer to Figures 1-5 , the present utility model provides a technical solution:
[0024] A bending machine for metal fittings, comprising a chassis 1, a lower punching die 2, a control device 3 and an upper punching die 4. The lower punching die 2 is fixedly connected to the outside of the chassis 1. The lower punching die 2 includes a lower punching die body 21. A fixing block 22 is fixedly connected to the outside of the lower punching die body 21. A guide rod 23 is fixedly connected to the outside of the fixing block 22. A limiting frame 24 is fixedly connected to the outside of the lower punching die body 21. A cleaning mechanism 25 is slidably connected to the outside of the lower punching die body 21. The cleaning mechanism 25 includes a cleaning frame 251. A sliding ball 252 is slidably connected to the inside of the cleaning frame 251. A scraping plate 253 is fixedly connected to the outside of the cleaning frame 251. A connecting column 254 is fixedly connected to the outside of the scraping plate 253. A sponge block 255 is arranged on the outside of the connecting column 254. A sliding hole 256 is opened on the inside of the cleaning frame 251. An oil injection hole 257 is opened on the inside of the cleaning frame 251. A threaded hole 258 is opened on the inside of the cleaning frame 251. A screw rod 259 is spirally connected to the inside of the threaded hole 258. One end of the screw rod 259 is fixedly connected to a motor 5 through the main shaft of the motor 5. The control device 3 is fixedly connected to the outside of the chassis 1. The upper punching die 4 is arranged on the outside of the control device 3.
[0025] As a further implementation of this solution, there are two fixing blocks 22 in total. The fixing blocks 22 are fixedly connected through the guide rod 23. The fixing blocks 22 are arranged on the side of the lower punching die body 21 away from the control device 3, which is convenient for fixing and restricting the guide rod 23 and at the same time restricting the moving distance of the cleaning frame 251.
[0026] As a further implementation of this solution, the screw rod 259 is arranged on the side of the lower punching die body 21 close to the control device 3. The screw rod 259 rotates inside the limiting frame 24. The screw rod 259 and the guide rod 23 are on the same horizontal plane, which can ensure that the cleaning frame 251 moves in a straight line closely against the lower punching die body 21.
[0027] As a further implementation of this solution, there are four sliding balls 252 in total. The sliding balls 252 are arranged in pairs symmetrically on the inside of the cleaning frame 251. The sliding balls 252 are in close contact with the lower punching die body 21, which can reduce the frictional resistance of the cleaning frame 251 moving closely against the lower punching die body 21.
[0028] As a further implementation of this solution, there are two scraping plates 253 in total. The scraping plates 253 are parallel to each other on a straight line in the same horizontal plane. The scraping plates 253 are connected to each other through the connecting column 254. The scraping plates 253 are in close contact with the mold grooves opened on the inside of the lower punching die body 21, which is convenient for the scraping plates 253 to scrape and clean the particulate impurities in the mold grooves of the lower punching die body 21.
[0029] As a further implementation of this solution, the cross-sectional shape of the sponge block 255 is the same as that of the scraping plate 253. The sponge block 255 is in close contact with the die groove opened on the inner side of the lower die body 21. The oil injection hole 257 is arranged directly above the sponge block 255, facilitating the sponge block 255 to apply lubricating oil to the die groove of the lower die body 21.
[0030] As a further implementation of this solution, the cleaning frame 251 slides on the outer side of the guide rod 23 through the sliding hole 256. The side cross-section of the cleaning frame 251 is "concave" shaped, facilitating the indirect control of the movement of the scraping plate 253 by the screw rod 259.
[0031] Working process: During use, the device is powered on using an external power source. When using this bending machine to process metal fittings, the motor 5 fixedly connected to the chassis 1 can be started first, enabling the motor 5 to drive the screw rod 259 to rotate stably in the limiting frame 24 through the main shaft. Since the screw rod 259 is helically connected to the threaded hole 258 inside the cleaning frame 251, the rotation of the screw rod 259 can cause the cleaning frame 251 to slide passively on the outer side of the lower die body 21. At the same time, the cleaning frame 251 moves linearly and stably on the guide rod 23 through the sliding hole 256 opened on its inner side. This effectively ensures that the cleaning frame 251 can move linearly and stably on the lower die body 21. The scraping plate 253 fixedly connected to the outer side of the linearly moving cleaning frame 251 slides in the die groove on the inner side of the lower die body 21. The scraping plate 253 can scrape and clean the particulate impurities in the die groove of the lower die body 21 out of the processing range of the metal fitting as it moves with the cleaning frame 251, thus ensuring the cleanliness of the die groove of the lower die body 21. While the scraping plate 253 is working, the sponge block 255 between the two scraping plates 253 is already saturated with lubricating oil through the oil injection hole 257. As the scraping plate 253 moves, the sponge block 255 applies lubricating oil to the cleaned die groove of the lower die body 21, enabling the upper die 4 to bend the metal fitting on the lower die body 21, reducing the frictional resistance between the metal fitting and the lower die body 21 during the bending process, minimizing the frictional damage of the lower die body 21 to the metal fitting, effectively avoiding the phenomenon of flattening or depression at the bent part of the bent metal fitting, and ensuring the appearance integrity of the bent metal fitting.
[0032] 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 bending machine for metal parts, comprising a chassis (1), a lower punch (2), a control device (3) and an upper punch (4), characterized in that: The chassis (1) is fixedly connected to a lower punch (2) on the outside, the lower punch (2) comprises a lower punch body (21), a fixed block (22) is fixedly connected to the outside of the lower punch body (21), a guide rod (23) is fixedly connected to the outside of the fixed block (22), a limiting frame (24) is fixedly connected to the outside of the lower punch body (21), a cleaning mechanism (25) is slidably connected to the outside of the lower punch body (21), the cleaning mechanism (25) comprises a cleaning frame (251), a sliding ball (252) is slidably connected to the inside of the cleaning frame (251), a scraper (253) is fixedly connected to the outside of the cleaning frame (251), and the The scraper (253) is fixedly connected to a connecting column (254) on the outside, a sponge block (255) is arranged on the outside of the connecting column (254), a sliding hole (256) is provided on the inside of the cleaning frame (251), an oil injection hole (257) is provided on the inside of the cleaning frame (251), a threaded hole (258) is provided on the inside of the cleaning frame (251), a screw rod (259) is spirally connected to the inside of the threaded hole (258), one end of the screw rod (259) is fixedly connected to the motor (5) via the main shaft of the motor (5), a control device (3) is fixedly connected to the outside of the chassis (1), and an upper punch (4) is arranged on the outside of the control device (3).
2. A bending machine for metal parts according to claim 1, characterized in that: There are two fixed blocks (22) in total. The fixed blocks (22) are fixedly connected to each other via a guide rod (23). The fixed blocks (22) are arranged on a side of the lower punch body (21) away from the control device (3).
3. A bending machine for metal parts according to claim 1, characterized in that: The screw rod (259) is arranged on a side of the lower punch body (21) close to the control device (3), the screw rod (259) rotates inside the limiting frame (24), and the screw rod (259) and the guide rod (23) are on the same horizontal plane.
4. A bending machine for metal parts according to claim 1, characterized in that: There are four sliding balls (252) in total. The sliding balls (252) are symmetrically arranged in groups of two on the inner side of the cleaning frame (251). The sliding balls (252) are in close contact with the lower punch body (21).
5. A bending machine for metal parts according to claim 1, characterized in that: There are two scrapers (253) in total. The scrapers (253) are located on a straight line on the same horizontal plane and are parallel to each other. The scrapers (253) are connected to each other via a connecting column (254). The scrapers (253) are in close contact with a die groove opened on the inner side of the lower punch body (21).
6. A bending machine for metal parts according to claim 1, characterized in that: The cross-sectional shape of the sponge block (255) is the same as that of the scraper (253); the sponge block (255) is in close contact with a die groove provided on the inner side of the lower punch body (21); and the oil injection hole (257) is provided directly above the sponge block (255).
7. A bending machine for metal parts according to claim 1, characterized in that: The cleaning frame (251) slides on the outside of the guide rod (23) through the sliding hole (256); the side cross-section of the cleaning frame (251) is in the shape of a "concave" character.