Numerical control bending machine with plate correcting mechanism

Abstract

The utility model relates to the technical field of numerical control bending machines, in particular to a numerical control bending machine with a plate correcting mechanism, which comprises a machine shell, a hydraulic cylinder is embedded at the top end of the machine shell, the power output end of the hydraulic cylinder is connected with a lower pressing plate, and a lower pressing die is embedded at the bottom end of the lower pressing plate. An abutting mechanism is arranged on one side of the pressing die; the abutting mechanism comprises an abutting frame, the abutting frame is slidably connected to the outer wall of the machine shell, a supporting rod is fixedly installed at the end, penetrating into the machine shell, of the abutting frame, the outer wall of the supporting rod is sleeved with a spring, and the abutting frame, the supporting rod, the spring, a containing groove, a limiting groove and an abutting plate are matched through the machine shell, a hydraulic cylinder, a pressing-down plate and a pressing-down mold. According to the plate pressing and correcting device, when a plate is stamped, the plate is pressed and corrected, and the situation that errors or quality problems occur after stamping forming due to the fact that deviation or inching occurs when the plate is subjected to stamping force is avoided.

Description

Technical Field

[0001] This utility model relates to the field of CNC bending machine technology, and in particular to a CNC bending machine with a sheet metal straightening mechanism. Background Technology

[0002] CNC bending machines work by controlling the bending angle by pressing the sheet metal into the lower die through the upper die (bending depth), or by pressing the workpiece into a shape with the same angle as the die. The bending dies on the bending machine are composed of different parts and are mainly used to process the shape of the item by changing the physical state of the forming material. Depending on the different processing requirements, different dies often need to be changed during the production process.

[0003] In the existing technology, CNC bending machines require manual assistance to adjust the sheet metal during the bending process, such as rotation and positioning, in order to ensure the processing accuracy of the sheet metal. However, for sheet metal with a large self-weight, it is inconvenient to adjust its position.

[0004] An existing patent (publication number: CN221559409U) discloses a CNC bending machine that moves, rotates, and positions sheet metal through a material table. It can also lift the sheet metal and flexibly adjust its position to achieve continuous bending processing, replacing manual adjustment, improving bending efficiency, simplifying bending steps, saving time and labor, and can also flexibly adjust for sheet metal with large self-weight.

[0005] To address the aforementioned issues, existing patents have improved efficiency and reduced manual operations through the coordination of components such as the material table; however, during the bending process, the metal sheet may undergo slight displacement when subjected to the downward pressure of the bending die and pressure plate, which may affect the bending quality. Summary of the Invention

[0006] The purpose of this utility model is to provide a CNC bending machine with a sheet metal straightening mechanism, which can press and straighten the sheet metal during stamping to avoid deviation or micro-movement under the stamping pressure, which would lead to errors or quality problems after stamping, thus solving the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a CNC bending machine with a sheet metal straightening mechanism, comprising a machine housing, a hydraulic cylinder being embedded at the top of the machine housing, and a lower pressure plate being connected to the power output end of the hydraulic cylinder, a lower pressure mold being embedded at the bottom of the lower pressure plate, and an abutment mechanism being provided on one side of the lower pressure mold;

[0008] The contact mechanism includes a contact frame, which is slidably connected to the outer wall of the housing. A support rod is fixedly installed at one end of the contact frame that penetrates into the housing. A spring is sleeved on the outer wall of the support rod. A placement groove is opened at the bottom end of the contact frame, and a limit groove is opened on one side of the outer wall of the contact frame. A contact plate is fixedly installed on one side of the lower pressure plate.

[0009] Preferably, the contact frame extends into the interior of the housing and fits tightly against the housing.

[0010] Preferably, the contact frame forms an elastic structure between the spring and the housing, and the spring and the support rod form a sliding structure.

[0011] Preferably, a limiting mechanism is provided at one end of the contact frame. The limiting mechanism includes a motor, which is embedded in the other side of the outer wall of the contact frame. The power output end of the motor is connected to a threaded rod. The threaded rod passes through the outer wall of the contact frame and is slidably connected to a sliding plate. A limiting plate is slidably connected to the lower outer side of the sliding plate.

[0012] Preferably, the limiting mechanism further includes a slider, which is fixedly installed on both sides of the outer wall of the sliding plate. The inner wall of the abutment frame is provided with a sliding groove corresponding to the position of the slider. The inner wall of the sliding plate is provided with a positioning groove, and a positioning plate is slidably connected inside the positioning groove.

[0013] Preferably, the threaded rod is threadedly connected to the sliding plate, and the sliding plate forms a sliding structure between the slider and the groove.

[0014] Preferably, the sliding plate extends into the interior of the limiting plate, and the sliding plate forms a sliding structure with the positioning plate through the positioning groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. Through the housing, hydraulic cylinder, lower pressure plate and lower pressure die, and in conjunction with the contact frame, support rod, spring, placement groove, limit groove and contact plate, the sheet metal can be pressed and corrected during stamping, so as to avoid deviation or micro-movement when subjected to stamping pressure, which would lead to errors or quality problems after stamping.

[0017] 2. The sheet metal can be clamped and limited by the motor, threaded rod, sliding plate, limit plate, slider, slide groove, positioning groove and positioning plate, and the correction can be performed to avoid skewing during stamping, while also avoiding affecting the pressing space during stamping. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a schematic diagram of the support rod of this utility model;

[0021] Figure 3 This is a schematic diagram of the threaded rod of this utility model;

[0022] Figure 4 This is a schematic diagram of the positioning plate of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Housing; 2. Hydraulic cylinder; 3. Lower pressure plate; 4. Lower pressure mold; 5. Abutting mechanism; 501. Abutting frame; 502. Support rod; 503. Spring; 504. Placement slot; 505. Limiting slot; 506. Abutting plate; 6. Limiting mechanism; 601. Motor; 602. Threaded rod; 603. Sliding plate; 604. Limiting plate; 605. Sliding block; 606. Slide groove; 607. Positioning slot; 608. Positioning plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 2A CNC bending machine with a sheet metal straightening mechanism includes a housing 1. A hydraulic cylinder 2 is embedded in the top of the housing 1. The power output end of the hydraulic cylinder 2 is connected to a lower pressure plate 3. A lower pressure die 4 is embedded in the bottom of the lower pressure plate 3. An abutment mechanism 5 is provided on one side of the lower pressure die 4. The abutment mechanism 5 includes an abutment frame 501, which is slidably connected to the outer wall of the housing 1. A support rod 502 is fixedly installed at one end of the abutment frame 501 that penetrates into the housing 1. A spring 503 is fitted on the outer wall of 02. A placement groove 504 is opened at the bottom of the contact frame 501. A limit groove 505 is opened on one side of the outer wall of the contact frame 501. A contact plate 506 is fixedly installed on one side of the lower pressure plate 3. The contact frame 501 penetrates into the interior of the housing 1. The contact frame 501 is tightly fitted with the housing 1. The contact frame 501 forms an elastic structure with the housing 1 through the spring 503. The spring 503 and the support rod 502 form a sliding structure.

[0028] By adopting the above technical solution, when the pressing plate 3 is driven by the hydraulic cylinder 2 to push the pressing die 4 for stamping, it drives the contact plate 506 to allow the contact frame 501 to slide stably along the machine housing 1 through the limiting groove 505. At the same time, it passes through the machine housing 1 and compresses the spring 503 to allow the support rod 502 to insert into the machine housing 1, and presses and corrects the plate inside the placement groove 504, so as to avoid the plate shaking during the stamping process, which would cause angle problems and result in finished product quality problems. After the stamping is completed, the contact frame 501 is reset by the elastic contraction of the spring 503.

[0029] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, a limiting mechanism 6 is provided at one end of the contact frame 501. The limiting mechanism 6 includes a motor 601, which is embedded in the other side of the outer wall of the contact frame 501. The power output end of the motor 601 is connected to a threaded rod 602. The threaded rod 602 passes through the outer wall of the contact frame 501 and is slidably connected to a sliding plate 603. A limiting plate 604 is slidably connected to the lower outer side of the sliding plate 603. The limiting mechanism 6 also includes a slider 605, which is fixedly installed on both sides of the outer wall of the sliding plate 603. The inner wall of the contact frame 501 is provided with a groove 606 corresponding to the position of the slider 605. The inner wall of the sliding plate 603 is provided with a positioning groove 607. The positioning plate 608 is slidably connected inside the positioning groove 607. The threaded rod 602 is threadedly connected to the sliding plate 603. The sliding plate 603 forms a sliding structure through the slider 605 and the groove 606. The sliding plate 603 extends into the interior of the limiting plate 604. The sliding plate 603 forms a sliding structure through the positioning groove 607 and the positioning plate 608.

[0030] By adopting the above technical solution, the motor 601 operates, causing the threaded rod 602 to push the sliding plate 603 to slide along the contact frame 501. The slider 605 improves the stability of the sliding plate 603 during the sliding process along the slide groove 606. At the same time, the sliding plate 603 drives the limiting plate 604 to clamp and correct the sheet metal, thereby preventing deviation. During stamping, the contact frame 501 presses down and, through the positioning plate 608 along the positioning groove 607, allows the limiting plate 604 to enter the sliding plate 603, preventing the space of the placement groove 504 from being affected during stamping.

[0031] Working principle: The hydraulic cylinder 2 pushes the lower pressure plate 3, which in turn drives the lower pressure mold 4 to press the sheet metal into the forming mold inside the housing 1. The contact frame 501 presses the sheet metal through the placement groove 504 and fits against the housing 1 through the limiting groove 505 to prevent misalignment. When the lower pressure plate 3 presses down, it drives the contact plate 506 to press the contact frame 501. The bottom two sides of the contact frame 501 penetrate into the housing 1, and the support rod 502 is inserted into the housing 1 and the spring 503 is compressed, thereby allowing the placement plate to press against the mold inside the housing 1. The groove 504 clamps and corrects one side of the sheet metal to prevent deviation during forming. Before stamping, the motor 601 drives the threaded rod 602 to push the sliding plate 603. The slider 605 slides along the groove 606 inside the contact frame 501, which drives the limiting plate 604 to slide stably, thereby clamping and correcting the sheet metal to prevent deviation. When pressing down, the positioning plate 608 slides along the positioning groove 607 to allow the limiting plate 604 to pass into the sliding plate 603, so as not to affect the space during pressing down.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A CNC bending machine with a sheet metal straightening mechanism, comprising a machine housing (1), characterized in that: The top of the housing (1) is fitted with a hydraulic cylinder (2), and the power output end of the hydraulic cylinder (2) is connected to a lower pressure plate (3). The bottom end of the lower pressure plate (3) is fitted with a lower pressure mold (4), and a contact mechanism (5) is provided on one side of the lower pressure mold (4). The contact mechanism (5) includes a contact frame (501), which is slidably connected to the outer wall of the housing (1). A support rod (502) is fixedly installed at one end of the contact frame (501) that penetrates into the housing (1). A spring (503) is sleeved on the outer wall of the support rod (502). A placement groove (504) is opened at the bottom end of the contact frame (501), and a limit groove (505) is opened on one side of the outer wall of the contact frame (501). A contact plate (506) is fixedly installed on one side of the lower pressure plate (3).

2. A CNC bending machine with a sheet metal straightening mechanism according to claim 1, characterized in that: The contact frame (501) extends into the interior of the housing (1) and is in close contact with the housing (1).

3. A CNC bending machine with a sheet metal straightening mechanism according to claim 1, characterized in that: The contact frame (501) forms an elastic structure with the housing (1) through the spring (503), and the spring (503) forms a sliding structure with the support rod (502).

4. A CNC bending machine with a sheet metal straightening mechanism according to claim 1, characterized in that: One end of the contact frame (501) is provided with a limiting mechanism (6), the limiting mechanism (6) includes a motor (601), the motor (601) is embedded on the other side of the outer wall of the contact frame (501), and the power output end of the motor (601) is connected to a threaded rod (602). The threaded rod (602) passes through the outer wall of the contact frame (501) and is slidably connected to a sliding plate (603), and a limiting plate (604) is slidably connected to the lower outer side of the sliding plate (603).

5. A CNC bending machine with a sheet metal straightening mechanism according to claim 4, characterized in that: The limiting mechanism (6) also includes a slider (605), which is fixedly installed on both sides of the outer wall of the sliding plate (603). The inner wall of the contact frame (501) is provided with a sliding groove (606) corresponding to the position of the slider (605). The inner wall of the sliding plate (603) is provided with a positioning groove (607), and a positioning plate (608) is slidably connected inside the positioning groove (607).

6. A CNC bending machine with a sheet metal straightening mechanism according to claim 5, characterized in that: The threaded rod (602) is threadedly connected to the sliding plate (603), and the sliding plate (603) forms a sliding structure between the slider (605) and the groove (606).

7. A CNC bending machine with a sheet metal straightening mechanism according to claim 5, characterized in that: The sliding plate (603) extends into the interior of the limiting plate (604), and the sliding plate (603) forms a sliding structure with the positioning plate (608) through the positioning groove (607).

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