Automatic angle compensation device for bending machine

Abstract

The utility model provides an angle automatic compensation device of bending machine relates to bending machine field, include: processing platform, be equipped with the bending mechanism of bending to metal piece on the processing platform, the bending mechanism includes first hydraulic cylinder and is used for bending to the bending die of metal, the middle part of processing platform upper surface is equipped with the bending groove, the installation groove is equipped with in processing platform, the automatic compensation mechanism for compensating the bending angle is equipped with in the installation groove, the bending groove is linked together with the installation groove. The utility model discloses through the real -time monitoring of pressure sensor, displacement sensor and displacement receiver, and the accurate compensation action of second hydraulic cylinder, can control the error of bending angle in the extremely small range, greatly improves the forming precision and quality consistency of product, satisfies the demand to high -precision metal bending piece, owing to can effectively compensate the angle deviation caused by material difference and other factors, makes the bending angle of the same batch product more stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of bending machines, and in particular to an automatic angle compensation device for bending machines. Background Technology

[0002] In the field of metal processing, bending machines are extremely important equipment. With the increasing demands for precision in industrial production of metal products, traditional bending machines face numerous challenges during the bending process. Traditional bending machines largely rely on manual operation, resulting in low bending efficiency and low bending angle accuracy. Therefore, it is necessary to design a bending machine with an automatic angle compensation device.

[0003] In related technologies, due to the differences in the properties of metal materials (such as the different hardness and elastic modulus of different batches of materials) and the influence of various uncontrollable factors during the bending process, the bending angle is often difficult to control precisely. Traditional bending machines mostly rely on manual operation. When angle deviation occurs, the manual adjustment process is cumbersome and time-consuming, resulting in unstable product quality, high scrap rate, and seriously affecting production efficiency.

[0004] Therefore, it is necessary to provide an automatic angle compensation device for bending machines to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an automatic angle compensation device for bending machines.

[0006] This utility model provides an automatic angle compensation device for a bending machine, comprising: a processing table, a bending mechanism for bending metal parts on the processing table, the bending mechanism including a first hydraulic cylinder and a bending die for bending the metal, a bending groove being formed in the middle of the upper surface of the processing table, an installation groove being formed inside the processing table, an automatic compensation mechanism for compensating the bending angle being provided in the installation groove, the bending groove being connected to the installation groove, and an operation panel being provided on the processing table.

[0007] Preferably, the bending mechanism includes a gantry frame, which is fixedly connected to the upper surface of the processing table. The first hydraulic cylinder is fixedly installed on the gantry frame, and the output shaft of the first hydraulic cylinder extends into the gantry frame and is fixedly connected to a moving plate. The bending die is connected to the lower surface of the moving plate.

[0008] Preferably, limit grooves are provided on both sides of the inner wall of the gantry frame, and limit blocks are connected to both sides of the movable plate, with the limit blocks sliding along the inner wall of the limit grooves.

[0009] Preferably, the automatic compensation mechanism includes a movable plate that moves between a bending groove and a mounting groove. A bending element is provided above the movable plate and is located within the bending groove. Several springs are connected to the lower surface of the movable plate, and one end of each spring is connected to a fixed plate. The fixed plate is fixedly installed within the mounting groove.

[0010] Preferably, a movable rod is connected to the lower surface of the movable plate, the lower end of the movable rod passes through the fixed plate and extends below the fixed plate, the movable rod slides on the fixed plate, and a pressure sensor for detecting the pressure of the movable rod is installed on the bottom wall of the mounting groove.

[0011] Preferably, both ends of the movable plate are connected to side plates, each side plate is connected to a displacement sensor on its outer side, and a displacement receiver is installed in the mounting groove corresponding to the position of each displacement sensor. Two second hydraulic cylinders are installed on the bottom wall of the mounting groove. The two second hydraulic cylinders are located outside both ends of the fixed plate and their conveying ends are not connected to the movable plate. The second hydraulic cylinders are located inside the side plates.

[0012] Preferably, the processing tables located on both sides of the bending groove are equipped with stacking plates for placing metal parts, and the operation panel is equipped with an electronic display screen for displaying bending parameters.

[0013] Compared with related technologies, the automatic angle compensation device for a bending machine provided by this utility model has the following beneficial effects:

[0014] 1. Through real-time monitoring by pressure sensors, displacement sensors, and displacement receivers, and precise compensation actions by the second hydraulic cylinder, the bending angle error can be controlled within a minimal range, significantly improving the forming accuracy and quality consistency of the product, meeting the demand for high-precision metal bending parts. Because it effectively compensates for angle deviations caused by material differences and other factors, the bending angle of products in the same batch is more stable and reliable. Compared to traditional bending machines that rely on manual experience for adjustment, this automatic angle compensation device can quickly and automatically detect and correct angle deviations, reducing downtime and production interruptions caused by adjusting the bending angle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0016] Figure 2 This is a first partial structural cross-sectional view of an embodiment of this application;

[0017] Figure 3 This is a second partial structural cross-sectional view of an embodiment of this application;

[0018] Figure 4 This is a partial structural diagram of an embodiment of this application.

[0019] The diagram is labeled as follows: 1. Processing table; 101. Bending groove; 102. Mounting groove; 2. Operation panel; 3. Bending mechanism; 301. Gantry frame; 3011. Limiting groove; 302. First hydraulic cylinder; 303. Moving plate; 304. Limiting block; 305. Bending die; 4. Laying plate; 5. Bending part; 6. Automatic compensation mechanism; 601. Movable plate; 602. Spring; 603. Fixed plate; 604. Movable rod; 605. Pressure sensor; 606. Side plate; 607. Displacement sensor; 608. Displacement receiver; 609. Second hydraulic cylinder. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figures 1 to 4 An automatic angle compensation device for a bending machine includes: a processing table 1, a bending mechanism 3 for bending metal parts on the processing table 1, the bending mechanism 3 including a first hydraulic cylinder 302 and a bending die 305 for bending metal, a bending groove 101 is formed in the middle of the upper surface of the processing table 1, an installation groove 102 is formed in the processing table 1, an automatic compensation mechanism 6 for compensating bending angle is formed in the installation groove 102, the bending groove 101 is connected to the installation groove 102, and an operation panel 2 is provided on the processing table 1.

[0022] It should be noted that the control buttons on the operation panel 2 in this solution are used to start and stop the movement of the hydraulic cylinder, and the operation panel 2 is electrically connected to the displacement sensor 607, the displacement receiver 608, and the pressure sensor 605.

[0023] refer to Figure 1 , Figure 2 , Figure 3 As shown, the bending mechanism 3 includes a gantry frame 301, which is fixedly connected to the upper surface of the processing table 1. A first hydraulic cylinder 302 is fixedly installed on the gantry frame 301. The output shaft of the first hydraulic cylinder 302 extends into the gantry frame 301 and is fixedly connected to a moving plate 303. A bending die 305 is connected to the lower surface of the moving plate 303. Limiting grooves 3011 are opened on both sides of the inner wall of the gantry frame 301. Limiting blocks 304 are connected to both sides of the moving plate 303. The limiting blocks 304 slide along the inner wall of the limiting grooves 3011.

[0024] In practice, the first hydraulic cylinder 302 is activated, and the output shaft of the first hydraulic cylinder 302 pushes the moving plate 303 to move downward (the limiting block 304 slides in the limiting groove 3011 to play a guiding role). The moving plate 303 drives the bending die 305 to move downward, and performs bending operation on the metal parts located on the stacking plate 4.

[0025] refer to Figure 1 , Figure 2 , Figure 4 As shown, the automatic compensation mechanism 6 includes a movable plate 601 that moves between a bending groove 101 and a mounting groove 102. A bending member 5 is provided above the movable plate 601 and is located within the bending groove 101. Several springs 602 are connected to the lower surface of the movable plate 601, and one end of each spring 602 is connected to a fixed plate 603, which is fixedly installed within the mounting groove 102. A movable rod 604 is connected to the lower surface of the movable plate 601. The lower end of the movable rod 604 passes through the fixed plate 603 and extends below it. The movable rod 604 rests on the fixed plate 603. The sliding plate 601 is equipped with a pressure sensor 605 for detecting the pressure of the movable rod 604 on the bottom wall of the mounting groove 102. Both ends of the movable plate 601 are connected to side plates 606. Each side plate 606 is connected to a displacement sensor 607 on its outer side. A displacement receiver 608 is installed in the mounting groove 102 corresponding to the position of each displacement sensor 607. Two second hydraulic cylinders 609 are installed on the bottom wall of the mounting groove 102. The two second hydraulic cylinders 609 are located outside both ends of the fixed plate 603 and their conveying ends are not connected to the movable plate 601. The second hydraulic cylinders 609 are located inside the side plates 606.

[0026] It should be noted that the elastic modulus, yield strength, and other mechanical properties of metal parts vary depending on the batch and material. For example, even among steel plates, high-strength alloy steel and ordinary carbon steel exhibit significantly different deformation characteristics during bending. When bending high-strength alloy steel, due to its higher yield strength, the bending angle may be smaller than expected under the same bending force. The automatic compensation mechanism 6 can detect this angle deviation caused by material properties and compensate for the angle by adjusting the bending force or bending stroke, ensuring that the final bending angle meets the set requirements.

[0027] When the metal part is not bent, several springs 602 are in their natural state, the movable plate 601 is located in the bending groove 101, the movable rod 604 is away from the pressure sensor 605, and the displacement sensor 607 is located above the displacement receiver 608.

[0028] During the bending process, the bending die 305 contacts the metal part and applies pressure. The metal part will generate a reaction force on the movable plate 601. The movable plate 601 presses the spring 602 downward, and the movable rod 604 moves downward accordingly. When the metal part is bent and the bending angle of the metal part just meets the required bending angle, the movable rod 604 just contacts the pressure sensor 605, and the displacement sensor 607 just aligns with the displacement receiver 608. At this time, the pressure value of the pressure sensor 605 is zero. The displacement receiver 608 receives the signal and transmits the signal to the operation panel 2. The electronic display screen on the operation panel 2 shows that the bending parameters are within the normal range and the bent part 5 is a qualified part.

[0029] When the elastic modulus and yield strength of the bent metal part are both small, under the drive of the first hydraulic cylinder 302, the metal part is bent at a large angle. Under the compression of the metal part, the spring 602 is compressed more. At this time, the moving rod 604 moves downward and squeezes the pressure sensor 605. The displacement sensor 607 does not receive a signal. At this time, the pressure sensor 605 displays the pressure value and transmits the signal to the operation panel 2. The operation panel 2 controls the start of the two second hydraulic cylinders 609, so that their output axes move upward and push the moving plate 601 upward, thereby compensating for the angle of the metal part and reducing the bending angle until the pressure value on the pressure sensor 605 is zero.

[0030] Therefore, the automatic compensation mechanism 6 has three possibilities: First, when the pressure value of the pressure sensor 605 is zero and the displacement sensor 607 does not receive a signal, the metal part is in an unbent state; Second, when the pressure value of the pressure sensor 605 is zero and the displacement sensor 607 receives a signal, the metal part is bent and meets the set bending angle, and the metal part is a qualified bent part 5; Third, when the pressure sensor 605 displays a pressure value and the displacement sensor 607 does not receive a signal, the metal part exceeds the preset bending angle, and compensation is performed by the automatic compensation mechanism 6.

[0031] refer to Figure 1 , Figure 2 , Figure 3 As shown, stacking plates 4 for placing metal parts are installed on the processing tables 1 located on both sides of the bending groove 101, and the operation panel 2 is equipped with an electronic display screen for displaying bending parameters.

[0032] It should be noted that the lap board 4 is used to place the metal parts to be bent, thereby improving bending efficiency.

[0033] The working principle of the automatic angle compensation device for a bending machine provided by this utility model is as follows:

[0034] First, the metal part is placed on the stacking plate 4, ready for bending. The operation panel 2 controls the start of the first hydraulic cylinder 302, causing its output shaft to push the moving plate 303 downward. The moving plate 303 drives the bending die 305 downward to perform the bending operation on the metal part located on the stacking plate 4.

[0035] After bending is completed, according to the bending parameters on the operation panel 2, when the pressure value of the pressure sensor 605 is zero and the displacement sensor 607 receives a signal, the bent metal part meets the set bending angle and is a qualified bent part 5; when the pressure sensor 605 displays a pressure value and the displacement sensor 607 does not receive a signal, the metal part exceeds the preset bending angle. Then, the operation panel 2 controls the activation of the two second hydraulic cylinders 609, causing their output axes to move upward and push the movable plate 601 upward, thereby compensating for the angle of the metal part and reducing its bending angle until the pressure value on the pressure sensor 605 displays zero.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic angle compensation device for a bending machine, characterized in that, include: A processing table (1) is provided with a bending mechanism (3) for bending metal parts. The bending mechanism (3) includes a first hydraulic cylinder (302) and a bending die (305) for bending metal. A bending groove (101) is provided in the middle of the upper surface of the processing table (1). An installation groove (102) is provided in the processing table (1). An automatic compensation mechanism (6) for compensating the bending angle is provided in the installation groove (102). The bending groove (101) is connected to the installation groove (102). An operation panel (2) is provided on the processing table (1). The automatic compensation mechanism (6) includes a movable plate (601) that moves between a bending groove (101) and a mounting groove (102). A bending member (5) is provided above the movable plate (601) and is located in the bending groove (101). A plurality of springs (602) are connected to the lower surface of the movable plate (601). One end of each spring (602) is connected to a fixing plate (603), and the fixing plate (603) is fixedly installed in the mounting groove (102). A movable rod (604) is connected to the lower surface of the movable plate (601). The lower end of the movable rod (604) passes through the fixed plate (603) and extends to the bottom of the fixed plate (603). The movable rod (604) slides on the fixed plate (603). A pressure sensor (605) for detecting the pressure of the movable rod (604) is installed on the bottom wall of the mounting groove (102). Both ends of the movable plate (601) are connected to side plates (606). Each side plate (606) is connected to a displacement sensor (607) on its outer side. A displacement receiver (608) is installed in the mounting groove (102) corresponding to the position of each displacement sensor (607). Two second hydraulic cylinders (609) are installed on the bottom wall of the mounting groove (102). The two second hydraulic cylinders (609) are located outside both ends of the fixed plate (603) and their conveying ends are not connected to the movable plate (601). The second hydraulic cylinders (609) are located inside the side plate (606). The pressure sensor (605), displacement sensor (607), displacement receiver (608), and second hydraulic cylinder (609) are all electrically connected to the operation panel (2).

2. The automatic angle compensation device for a bending machine according to claim 1, characterized in that, The bending mechanism (3) includes a gantry frame (301), which is fixedly connected to the upper surface of the processing table (1). The first hydraulic cylinder (302) is fixedly installed on the gantry frame (301). The output shaft of the first hydraulic cylinder (302) extends into the gantry frame (301) and is fixedly connected to a moving plate (303). The bending die (305) is connected to the lower surface of the moving plate (303).

3. The automatic angle compensation device for a bending machine according to claim 2, characterized in that, Limiting grooves (3011) are provided on both sides of the inner wall of the gantry frame (301), and limiting blocks (304) are connected to both sides of the moving plate (303). The limiting blocks (304) slide along the inner wall of the limiting grooves (3011).

4. The automatic angle compensation device for a bending machine according to claim 1, characterized in that, The processing table (1) located on both sides of the bending groove (101) is equipped with a stacking plate (4) for placing metal parts, and the operation panel (2) is equipped with an electronic display screen for displaying bending parameters.

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