Forging bending device with positioning mechanism

By introducing positioning components and a PLC controller into the forging bending device, and utilizing components such as servo motors, ball screws, and electromagnets, the precise positioning and convenient loading and unloading of the billet are achieved, solving the problem of inaccurate positioning in existing devices and improving bending efficiency and forming quality.

CN224272854UActive Publication Date: 2026-05-26NANJING HETAI MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING HETAI MASCH MFG CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-26

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    Figure CN224272854U_ABST
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Abstract

The utility model discloses a forge piece bending device with a positioning mechanism, and relates to the technical field of bending devices, the forge piece bending device comprises a bottom box body, the four corners of the top end of the bottom box body are respectively and fixedly connected with a side frame, and the middle position in the top box body is fixedly connected with a hydraulic cylinder; a positioning assembly facilitating adjustment and positioning is arranged at the top end of the bottom box body. According to the forge piece bending device with the positioning mechanism, by arranging a concave base, a servo motor, an optical axis, a ball screw, a lead screw sliding block, a first electric cylinder, a second electric cylinder, an electromagnet, a side edge push plate, a positioning rod and a rod piece groove, when the forge piece bending device with the positioning mechanism is used, the servo motor drives the lead screw sliding block to slide to the position parallel to a bottom die along the optical axis through the ball screw; the two sets of second electric cylinders extend synchronously, abut against the two sides of the blank through the side edge push plates and are located in the middle position in cooperation with the positioning rods, the function of conveniently positioning the blank is achieved, and the problem that the device does not have the function of conveniently positioning the blank is solved.
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Description

Technical Field

[0001] This utility model relates to the field of bending device technology, specifically a bending device for forgings with a positioning mechanism. Background Technology

[0002] Press bending is a common process in forging manufacturing, and it is widely used in both cold forging and hot forging.

[0003] By placing the forging blank, such as a plate, between the upper and lower dies, the hydraulic cylinder pushes the dies downward to close them, and the upper and lower dies squeeze the blank to bend it into shape. In actual use, there are some functional deficiencies and room for improvement. For example, if the plate blank is not placed accurately when bending, it is easy to cause deviation, making subsequent fine repair more difficult. It does not have the function of conveniently positioning the blank.

[0004] Now, a novel forging bending device with a positioning mechanism is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a forging bending device with a positioning mechanism to solve the problem mentioned in the background art of not having the function of conveniently positioning the blank.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a forging bending device with a positioning mechanism, comprising a bottom box, side frames fixedly connected to the four corners of the top of the bottom box, a top box fixedly connected to the top of the side frames, a hydraulic cylinder fixedly connected to the middle position inside the top box, limit slide rods vertically fixedly connected to both sides of the bottom of the top box, a mold fixing plate fixedly connected to the output end of the hydraulic cylinder, a top mold fixedly connected to the bottom end of the mold fixing plate, a bottom mold fixedly connected to the middle position of the top of the bottom box, a PLC controller fixedly connected to the right side of the bottom box, and a positioning component for easy adjustment and positioning provided at the top of the bottom box.

[0007] The positioning assembly includes two sets of support plates, which are fixedly connected to the top of the bottom housing on both sides. A concave seat is fixedly connected to the top of each support plate. A servo motor is installed at the rear end of the concave seat. A ball screw is movably connected between the front and rear ends inside the concave seat. Two sets of optical axes are fixedly connected between the front and rear ends inside the concave seat. A screw slider is sleeved on the outside of the optical axis and the ball screw. A second electric cylinder is installed at the middle position of the top of the screw slider. A side push plate is fixedly connected to the output end of the second electric cylinder. Two sets of positioning rods are fixedly connected to the top of the bottom mold on both sides. Two sets of rod grooves are opened on the bottom of the top mold on both sides.

[0008] As a further technical solution of this utility model, the output end of the servo motor is fixedly connected to the ball screw, the internal thread of the screw slider is adapted to the external thread of the ball screw, and the screw slider can slide back and forth along the optical axis and the outside of the ball screw.

[0009] As a further technical solution of this utility model, the bottom end of the side push plate is higher than the top end of the bottom mold, and the top end of the positioning rod is higher than the top end of the bottom mold.

[0010] As a further technical solution of this utility model, the second electric cylinder is symmetrically distributed about the vertical center line of the bottom box, and the servo motor, the second electric cylinder, and the PLC controller are electrically connected.

[0011] As a further technical solution of this utility model, the front and rear ends of the top of the lead screw slider are respectively fixedly connected to a first electric cylinder, the output end of the first electric cylinder is fixedly connected to an electromagnet, the bottom end of the electromagnet is higher than the top end of the bottom mold, and the first electric cylinder, the electromagnet and the PLC controller are electrically connected.

[0012] As a further technical solution of this utility model, a fixed housing is fixedly connected to both sides of the top of the mold fixing plate, and a motor fixing plate is horizontally fixedly connected between the two sides inside the fixed housing. A drive motor is installed at the top of the motor fixing plate, and an eccentric block is fixedly connected to the output end of the drive motor. The fixed housing is symmetrically distributed about the vertical center line of the mold fixing plate, and the PLC controller and the drive motor are electrically connected.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the forging bending device with positioning mechanism not only realizes the function of facilitating the positioning of the blank, but also realizes the function of facilitating loading and unloading, and also realizes the function of preventing the mold plate from jamming.

[0014] (1) By setting up a concave seat, servo motor, optical axis, ball screw, screw slider, first electric cylinder, second electric cylinder, electromagnet, side push plate, positioning rod and rod groove, when the steel plate forging blank is placed horizontally on the bottom mold, the hydraulic cylinder pushes the mold fixing plate to move down, and the top mold closes with the bottom mold, pressing the steel plate forging blank in it. The positioning rod on the bottom mold can limit the front and rear position of the steel plate blank. Before pressing, the servo motor drives the screw slider to slide along the optical axis to a position parallel to the bottom mold through the ball screw. The two sets of second electric cylinders extend synchronously, and the side push plate presses against both sides of the blank. With the positioning rod, it is placed in the center position. After positioning, it retracts to facilitate subsequent pressing and bending, thus realizing the function of easy positioning of the blank.

[0015] (2) By setting up a first electric cylinder and an electromagnet, when loading, the servo motor drives the screw slider to slide along the optical axis through the ball screw, so that the screw slider reaches the loading area. The four sets of first electric cylinders extend synchronously, and the electromagnet attracts the steel plate blank and transports it to the mold. After bending, the blank is unloaded in the same way, thus realizing the function of easy loading and unloading.

[0016] (3) By setting up a fixed housing, an eccentric block, a motor fixing plate and a drive motor, when the bending is completed, the top mold moves up. At the same time as the top mold moves up, the drive motor in the fixed housing starts synchronously, which drives the eccentric block to rotate at high speed and generate vibration. The fine vibration is transmitted to the top mold, which can promote the forging blank to fall off and realize the function of preventing the mold plate from jamming. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a top view of the bottom box structure of this utility model;

[0019] Figure 3 For the present utility model Figure 1 Enlarged cross-sectional view of a portion of point A in the middle section;

[0020] Figure 4 This is a partial enlarged cross-sectional view of the lead screw slider of this utility model from a low angle.

[0021] In the diagram: 1. Bottom housing; 2. Support plate; 3. Concave seat; 4. Servo motor; 5. Optical axis; 6. Ball screw; 7. Screw slider; 8. First electric cylinder; 9. Second electric cylinder; 10. Electromagnet; 11. Side push plate; 12. Positioning rod; 13. Rod slot; 14. Bottom mold; 15. Top mold; 16. Side frame; 17. Top housing; 18. Hydraulic cylinder; 19. Limiting slide bar; 20. PLC controller; 21. Fixed housing; 22. Eccentric block; 23. Motor fixing plate; 24. Drive motor; 25. Mold fixing plate. Detailed Implementation

[0022] 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.

[0023] Example: Please refer to Figure 1-4A forging bending device with a positioning mechanism includes a bottom box 1, side frames 16 fixedly connected to the four corners of the top of the bottom box 1, a top box 17 fixedly connected to the top of the side frames 16, a hydraulic cylinder 18 fixedly connected to the middle position inside the top box 17, limit slide rods 19 fixedly connected vertically to both sides of the bottom of the top box 17, a mold fixing plate 25 fixedly connected to the output end of the hydraulic cylinder 18, a top mold 15 fixedly connected to the bottom end of the mold fixing plate 25, a bottom mold 14 fixedly connected to the middle position of the top of the bottom box 1, a PLC controller 20 fixedly connected to the right side of the bottom box 1, and a positioning component for easy adjustment and positioning provided at the top of the bottom box 1.

[0024] Please see Figure 1-4 A forging bending device with a positioning mechanism also includes a positioning assembly, which includes two sets of support plates 2. The two sets of support plates 2 are fixedly connected to the top of the bottom box 1 on both sides. A concave seat 3 is fixedly connected to the top of the support plate 2. A servo motor 4 is installed at the rear end of the concave seat 3. A ball screw 6 is movably connected between the front and rear ends inside the concave seat 3. Two sets of optical shafts 5 are fixedly connected between the front and rear ends inside the concave seat 3. A screw slider 7 is sleeved on the outside of the optical shaft 5 and the ball screw 6. A second electric cylinder 9 is installed at the middle position of the top of the screw slider 7. A side push plate 11 is fixedly connected to the output end of the second electric cylinder 9. Two sets of positioning rods 12 are fixedly connected to the top of the bottom mold 14 on both sides. Two sets of rod grooves 13 are opened on both sides of the bottom end of the top mold 15.

[0025] The output end of the servo motor 4 is fixedly connected to the ball screw 6. The internal thread of the screw slider 7 is compatible with the external thread of the ball screw 6. The screw slider 7 can slide back and forth along the optical axis 5 and the outside of the ball screw 6. The bottom end of the side push plate 11 is higher than the top end of the bottom mold 14. The top end of the positioning rod 12 is higher than the top end of the bottom mold 14. The second electric cylinder 9 is symmetrically distributed about the vertical center line of the bottom box 1. The servo motor 4, the second electric cylinder 9, and the PLC controller 20 are electrically connected to facilitate the positioning of the forging blank.

[0026] Specifically, such as Figure 1 , Figure 2 and Figure 4As shown, the positioning rod 12 on the bottom mold 14 can limit the front and rear position of the steel plate blank. Before pressing, the servo motor 4 drives the screw slider 7 to slide along the optical axis 5 to a position parallel to the bottom mold 14 through the ball screw 6. The two sets of second electric cylinders 9 extend synchronously and press against both sides of the blank through the side push plate 11. With the help of the positioning rod 12, it is centered. After positioning, it retracts to facilitate subsequent bending. The specific model of the servo motor 4 is 130ST-M04025, the specific model of the second electric cylinder 9 is DSDG25, and the specific model of the PLC controller 20 is S7-200. The servo motor 4, the second electric cylinder 9, and the PLC controller 20 are electrically connected. This technology is existing technology and will not be described in detail.

[0027] The first electric cylinder 8 is fixedly connected to the front and rear ends of the top of the lead screw slider 7. The output end of the first electric cylinder 8 is fixedly connected to the electromagnet 10. The bottom end of the electromagnet 10 is higher than the top end of the bottom mold 14. The first electric cylinder 8, the electromagnet 10, and the PLC controller 20 are electrically connected to facilitate the loading and unloading of materials.

[0028] Specifically, such as Figure 2 and Figure 4 As shown, the four sets of first electric cylinders 8 extend synchronously, attract the steel plate blank through the electromagnet 10, and transport it to the mold. After bending, the blank is unloaded in the same way. The specific model of the first electric cylinder 8 is DSDG25, and the specific model of the electromagnet 10 is SMA-3540. The first electric cylinder 8, the electromagnet 10, and the PLC controller 20 are electrically connected. This technology is existing technology, so it will not be described in detail.

[0029] A fixed housing 21 is fixedly connected to both sides of the top of the mold fixing plate 25. A motor fixing plate 23 is horizontally fixed between the two sides inside the fixed housing 21. A drive motor 24 is installed at the top of the motor fixing plate 23. An eccentric block 22 is fixedly connected to the output end of the drive motor 24. The fixed housing 21 is symmetrically distributed about the vertical center line of the mold fixing plate 25. The PLC controller 20 and the drive motor 24 are electrically connected to prevent the mold from jamming.

[0030] Specifically, such as Figure 1 and Figure 3 As shown, while the top mold 15 moves upward, the drive motor 24 inside the fixed housing 21 starts synchronously, driving the eccentric block 22 to rotate at high speed and generate vibration (the centrifugal force generated by the high-speed rotation of the shaft and the eccentric block 22 is used to obtain the excitation force). The fine vibration is transmitted to the top mold 15, which can promote the falling off of the forging blank. The specific model of the drive motor 24 is R260. The PLC controller 20 and the drive motor 24 are electrically connected. This technology is existing technology, so it will not be described in detail.

[0031] The computer software involved in the PLC controller and other hardware carriers in the technical solution is software technology known to those skilled in the art. It is merely applied to the aforementioned hardware carriers. In other words, the computer software portion of the technical solution is an essential technical feature for solving the aforementioned technical problem, constituting a necessary technical feature for the technical problem solved by this application, but it is not a differentiating technical feature or a point of technical improvement. The applicant has not made any technical improvements to the computer software portion involved in the aforementioned related hardware carriers, nor is it a key technical point of the invention.

[0032] Therefore, the "PLC controller", "servo motor", "electric cylinder", "drive motor" and other components involved in this application are all physical functional modules that combine existing computer software programs or protocols with the hardware carrier of this application. The computer software programs involved in these physical functional modules are technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction between the various physical functional modules, that is, the improvement of the overall structure of the bending equipment of this application, so as to solve the corresponding technical problems to be solved by this application.

[0033] Working Principle: In use, the steel plate forging blank is first placed horizontally on the bottom mold 14. The hydraulic cylinder 18 pushes the mold fixing plate 25 downwards, causing the top mold 15 to close with the bottom mold 14, bending the steel plate forging. The positioning rod 12 on the bottom mold 14 restricts the front-to-back position of the steel plate blank. Before pressing, the servo motor 4 drives the lead screw slider 7 along the optical axis 5 to a position parallel to the bottom mold 14 via the ball screw 6. Two sets of second electric cylinders 9 extend synchronously, pressing against both sides of the blank via the side push plate 11, and cooperating with the positioning rod 12 to center it. After positioning, it retracts to facilitate subsequent bending. During loading, the servo motor 4 drives the lead screw slider 7 along the optical axis 5 via the ball screw 6, allowing the lead screw slider 7 to reach the loading area. Four sets of first electric cylinders 8 extend synchronously, attracting the steel plate blank via the electromagnet 10 and conveying it to the mold. After bending, it is unloaded in the same manner. As the bending is completed, the top die 15 moves upward. At the same time as the top die 15 moves upward, the drive motor 24 inside the fixed housing 21 starts synchronously, driving the eccentric block 22 to rotate at high speed and generate vibration. The fine vibration is transmitted to the top die 15, which can promote the forging blank to fall off.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A forging bending device with a positioning mechanism, comprising a bottom housing (1), characterized in that: Side frames (16) are fixedly connected to the four corners of the top of the bottom box (1), and a top box (17) is fixedly connected to the top of the side frames (16). A hydraulic cylinder (18) is fixedly connected to the middle position inside the top box (17). Limiting slide rods (19) are fixedly connected vertically to both sides of the bottom of the top box (17). A mold fixing plate (25) is fixedly connected to the output end of the hydraulic cylinder (18). A top mold (15) is fixedly connected to the bottom end of the mold fixing plate (25). A bottom mold (14) is fixedly connected to the middle position of the top of the bottom box (1). A PLC controller (20) is fixedly connected to the right side of the bottom box (1). A positioning component for easy adjustment and positioning is provided at the top of the bottom box (1). The positioning assembly includes two sets of support plates (2), which are fixedly connected to the top of the bottom box (1) on both sides. A concave seat (3) is fixedly connected to the top of the support plate (2). A servo motor (4) is installed at the rear end of the concave seat (3). A ball screw (6) is movably connected between the front and rear ends inside the concave seat (3). Two sets of optical shafts (5) are fixedly connected between the front and rear ends inside the concave seat (3). A screw slider (7) is sleeved on the outside of the optical shaft (5) and the ball screw (6). A second electric cylinder (9) is installed at the middle position of the top of the screw slider (7). A side push plate (11) is fixedly connected to the output end of the second electric cylinder (9). Two sets of positioning rods (12) are fixedly connected to the top of the bottom mold (14) on both sides. Two sets of rod grooves (13) are opened on both sides of the bottom end of the top mold (15).

2. The forging bending device with a positioning mechanism according to claim 1, characterized in that: The output end of the servo motor (4) is fixedly connected to the ball screw (6). The internal thread of the screw slider (7) is compatible with the external thread of the ball screw (6). The screw slider (7) can slide back and forth along the optical axis (5) and the outside of the ball screw (6).

3. The forging bending device with a positioning mechanism according to claim 1, characterized in that: The bottom end of the side push plate (11) is higher than the top end of the bottom mold (14), and the top end of the positioning rod (12) is higher than the top end of the bottom mold (14).

4. A forging bending device with a positioning mechanism according to claim 1, characterized in that: The second electric cylinder (9) is symmetrically distributed about the vertical center line of the bottom box (1), and the servo motor (4), the second electric cylinder (9), and the PLC controller (20) are electrically connected.

5. A forging bending device with a positioning mechanism according to claim 1, characterized in that: The first electric cylinder (8) is fixedly connected to the front and rear ends of the top of the lead screw slider (7). The output end of the first electric cylinder (8) is fixedly connected to an electromagnet (10). The bottom end of the electromagnet (10) is higher than the top end of the bottom mold (14). The first electric cylinder (8), the electromagnet (10), and the PLC controller (20) are electrically connected.

6. A forging bending device with a positioning mechanism according to claim 1, characterized in that: The mold fixing plate (25) has a fixing housing (21) fixedly connected to both sides of the top. The fixing housing (21) has a motor fixing plate (23) fixedly connected to the two sides inside. The motor fixing plate (23) has a drive motor (24) installed at the top. The output end of the drive motor (24) is fixedly connected to an eccentric block (22). The fixing housing (21) is symmetrically distributed about the vertical center line of the mold fixing plate (25). The PLC controller (20) and the drive motor (24) are electrically connected.