Hydraulic bending device
By introducing a V-groove and drive assembly into the hydraulic bending device, the problems of billet misalignment and time-consuming die replacement were solved, achieving stable fixing and flexible bending adjustment of round billets, thus improving processing accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU JINGSHANGYUAN MASCH MFG CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-12
Smart Images

Figure CN224346717U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel processing technology, and in particular to a hydraulic bending device. Background Technology
[0002] Steel processing is an industrial process that transforms raw steel materials (such as steel ingots, billets, plates, and profiles) into steel that meet specific performance, shape, and size requirements through physical or chemical methods. As the foundation of modern manufacturing, steel processing covers the entire chain from raw materials to end products and is widely used in fields such as construction, automobiles, machinery, energy, and shipbuilding. Among these applications, hydraulic bending devices are required for shaping steel.
[0003] However, existing technologies have some problems: when bending round steel billets, existing hydraulic bending devices cannot limit the round steel billets, which may cause the steel billets to deviate during bending, affecting the bending effect. At the same time, existing hydraulic bending devices use molds for bending, and the molds need to be changed when different bending degrees are required, which is time-consuming and labor-intensive. Therefore, we propose a hydraulic bending device. Utility Model Content
[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a hydraulic bending device that adjusts the height of the rollers by opening a V-groove and setting a drive component, thereby preventing the billet from shifting during bending and allowing the roller height to be adjusted according to the actual required bending degree.
[0005] This utility model is implemented as follows: a hydraulic bending device includes a base, a support column fixedly connected to the base, a support platform fixedly connected to the support column, a hydraulic rod fixedly connected to the support platform, a pressure plate fixedly connected to the movable end of the hydraulic rod, a top mold fixedly connected to the pressure plate, a guide assembly provided on the pressure plate, two sets of support rods movably connected to the base, a drive assembly provided on the base, the drive assembly being used to drive the support rods to move, and rollers rotatably connected to the support rods.
[0006] Optionally, it also includes a fixing screw, wherein the pressure plate has a threaded hole, the top mold has a mounting hole, and the fixing screw passes through the mounting hole and is threaded into the threaded hole.
[0007] Optionally, the guide assembly includes a guide sleeve, a through hole is provided on the support platform, the guide sleeve is fixedly connected to the inner wall of the through hole, a guide rod is slidably connected inside the guide sleeve, and the guide rod is fixedly connected to the pressure plate.
[0008] Optionally, the base has a sliding groove, an adjusting plate is slidably connected in the sliding groove, the support rod is fixedly connected to both ends of the adjusting plate, a positioning rod is fixedly connected to the inner wall of the sliding groove, a positioning hole is opened on the adjusting plate, and the positioning rod is slidably connected in the positioning hole.
[0009] Optionally, the drive assembly includes a threaded rod rotatably connected in a base groove, the threaded rod being threadedly connected to an adjusting plate, and a worm gear being fixedly connected to one end of the threaded rod.
[0010] Optionally, the drive assembly further includes a motor, which is fixedly connected to the base, and a worm gear is fixedly connected to the output end of the motor, the worm gear meshing with a worm wheel.
[0011] Optionally, both the roller and the outer wall of the top mold are provided with V-shaped grooves, and a rubber pad is fixedly connected to the inner wall of the V-shaped groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This utility model features V-shaped grooves on both the outer wall of the roller and the outer wall of the top mold. The V-shaped grooves allow the device to process circular steel billets of different sizes. At the same time, the V-shaped grooves fix the circular steel billets, preventing them from shifting during bending. The V-shaped grooves also increase the contact points with the circular steel billets, avoiding excessive pressure on the steel billets caused by single-point contact and preventing damage. A rubber pad is fixedly connected to the inner wall of the V-shaped groove. The rubber pad prevents the steel billets from directly contacting the rollers and the top mold, reducing wear on the steel billets caused by the device.
[0014] 2. This utility model is equipped with a drive component. When the motor starts, it drives the worm to rotate. After the worm rotates, it drives the worm wheel to rotate. After the worm wheel rotates, it drives the threaded rod to rotate. The adjusting plate will slide in the groove of the base under the thread engagement, thereby changing the height of the support rod and the roller, which in turn changes the degree of bending of the steel billet by the device. In this way, the device can adjust the height of the roller according to actual needs.
[0015] 3. This utility model is equipped with a guide assembly. When the hydraulic rod drives the pressure plate to move, the pressure plate will also drive the guide rod to slide in the guide sleeve. Through the two sets of guide rods, the pressure plate of the hydraulic bending machine can move accurately in the vertical direction. The guide rod, in cooperation with the guide sleeve, restricts its horizontal deviation, avoiding the top die misalignment during bending, which would cause angular deviation and affect the bending of the steel billet. At the same time, during high-pressure bending, the lateral force generated by the hydraulic rod may cause the pressure plate to twist. The rigid structure of the guide rod can effectively resist this torque and maintain the perpendicularity of the pressure plate to the support platform. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0017] Figure 1 This is a structural schematic diagram provided by this utility model.
[0018] Figure 2 This is a cross-sectional view of the support platform provided by this utility model.
[0019] Figure 3 This is a schematic diagram of the pressure plate provided by this utility model.
[0020] Figure 4 This is a cross-sectional view of the base provided by this utility model.
[0021] Figure 5 This utility model provides Figure 4 Enlarged diagram of point A.
[0022] Figure 6 This is a schematic diagram of the roller provided by this utility model.
[0023] In the diagram: 1. Base; 2. Support column; 3. Support platform; 4. Hydraulic rod; 5. Pressure plate; 6. Top mold; 7. Guide assembly; 71. Guide sleeve; 72. Guide rod; 8. Support rod; 9. Drive assembly; 91. Threaded rod; 92. Motor; 93. Worm gear; 94. Worm wheel; 10. Roller; 11. Fixing screw; 12. Adjusting plate; 13. Positioning rod; 14. Rubber pad. Detailed Implementation
[0024] 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.
[0025] like Figures 1 to 6 As shown in the figure, the hydraulic bending device provided in this embodiment of the utility model includes a base 1, which is rectangular and made of stainless steel. The main function of the base 1 is to support the entire device and ensure that the device operates normally and stably.
[0026] Furthermore, a support column 2 is fixedly connected to the base 1, a support platform 3 is fixedly connected to the support column 2, a hydraulic rod 4 is fixedly connected to the support platform 3, a pressure plate 5 is fixedly connected to the movable end of the hydraulic rod 4, and a top mold 6 is fixedly connected to the pressure plate 5.
[0027] Specifically, the hydraulic rod 4 moves to drive the pressure plate 5 to move, and the pressure plate 5 then drives the top mold 6 to move. The steel billet will be bent under the action of the top mold 6 and the roller 10, thus completing the processing of the steel billet.
[0028] Furthermore, the hydraulic bending device also includes a fixing screw 11. The pressure plate 5 has a threaded hole, and the top die 6 has a mounting hole. The fixing screw 11 passes through the mounting hole and is threaded into the threaded hole. The top die 6 is fixed on the pressure plate 5 by the fixing screw 11, which facilitates its disassembly and installation, thereby making it easy to replace the top die 6 and enabling the device to meet different bending shapes.
[0029] Furthermore, a guide assembly 7 is provided on the pressure plate 5. The guide assembly 7 includes a guide sleeve 71. A through hole is provided on the support platform 3. The guide sleeve 71 is fixedly connected to the inner wall of the through hole. A guide rod 72 is slidably connected inside the guide sleeve 71. The guide rod 72 is fixedly connected to the pressure plate 5.
[0030] Specifically, when the hydraulic rod 4 moves the pressure plate 5, the pressure plate 5 also moves the guide rod 72 to slide within the guide sleeve 71. The two sets of guide rods 72 enable the pressure plate 5 of the hydraulic bending machine to move precisely in the vertical direction. The guide rod 72, in cooperation with the guide sleeve 71, restricts its horizontal deviation, preventing the top die 6 from being misaligned during bending and causing angular deviation, which would affect the bending of the steel billet. At the same time, during high-pressure bending, the lateral force generated by the hydraulic rod 4 may cause the pressure plate 5 to twist. The rigid structure of the guide rod 72 can effectively resist this torque and maintain the perpendicularity of the pressure plate 5 to the support platform 3.
[0031] Furthermore, two sets of support rods 8 are movably connected to the base 1. A sliding groove is provided on the base 1, and an adjusting plate 12 is slidably connected in the sliding groove. The support rods 8 are respectively fixedly connected to both ends of the adjusting plate 12. A positioning rod 13 is fixedly connected to the inner wall of the sliding groove. A positioning hole is provided on the adjusting plate 12, and the positioning rod 13 is slidably connected in the positioning hole.
[0032] Specifically, by fixing the two sets of support rods 8 to both ends of the adjusting plate 12, it can be ensured that the two sets of support rods 8 rise and fall synchronously with the adjusting plate 12, thus keeping the height of the two sets of support rods 8 horizontal and preventing them from affecting the bending of the steel billet. At the same time, a positioning rod 13 is provided that is slidably connected to the adjusting plate 12, so that the adjusting plate 12 remains horizontal when it moves, further ensuring that the two sets of support rods 8 remain horizontal.
[0033] Furthermore, a drive assembly 9 is provided on the base 1. The drive assembly 9 is used to drive the support rod 8 to move. The drive assembly 9 includes a threaded rod 91, which is rotatably connected in the slide groove of the base 1. The threaded rod 91 is threadedly connected to the adjusting plate 12, and a worm gear 94 is fixedly connected to one end of the threaded rod 91.
[0034] Furthermore, the drive assembly 9 also includes a motor 92, which is fixedly connected inside the base 1. A worm gear 93 is fixedly connected to the output end of the motor 92, and the worm gear 93 meshes with a worm wheel 94.
[0035] Specifically, the motor 92 starts and drives the worm 93 to rotate. After the worm 93 rotates, it drives the worm wheel 94 to rotate. After the worm wheel 94 rotates, it drives the threaded rod 91 to rotate. The adjusting plate 12 will slide in the groove of the base 1 under the threaded engagement, thereby changing the height of the support rod 8 and the roller 10, which in turn changes the degree of bending of the steel billet by the device. In this way, the device can adjust the height of the roller 10 according to actual needs.
[0036] Furthermore, a roller 10 is rotatably connected to the support rod 8. Both the roller 10 and the outer wall of the top mold 6 are provided with V-shaped grooves. The V-shaped grooves allow the device to process circular steel billets of different sizes. At the same time, the V-shaped grooves fix the circular steel billets so that they do not shift during bending. Meanwhile, a rubber pad 14 is fixedly connected to the inner wall of the V-shaped groove. The rubber pad 14 prevents the steel billet from directly contacting the roller 10 and the top mold 6, thereby reducing the wear of the steel billet by the device.
[0037] The working principle of this utility model is as follows:
[0038] This utility model features V-shaped grooves on the outer walls of both the roller 10 and the top mold 6. The V-shaped grooves allow the device to process circular steel billets of different sizes. They also help to fix the circular steel billets in place, preventing them from shifting during bending. Additionally, a rubber pad 14 is fixedly connected to the inner wall of the V-shaped groove. The rubber pad 14 prevents the steel billet from directly contacting the roller 10 and the top mold 6, thus reducing wear on the steel billet.
[0039] This utility model is equipped with a drive assembly 9. When the motor 92 starts, it drives the worm gear 93 to rotate. After the worm gear 93 rotates, it drives the worm wheel 94 to rotate. After the worm wheel 94 rotates, it drives the threaded rod 91 to rotate. The adjusting plate 12 will slide in the groove of the base 1 under the threaded engagement, thereby changing the height of the support rod 8 and the roller 10, which in turn changes the degree of bending of the steel billet by the device. In this way, the device can adjust the height of the roller 10 according to actual needs.
[0040] This utility model is equipped with a guide assembly 7. When the hydraulic rod 4 moves the pressure plate 5, the pressure plate 5 also drives the guide rod 72 to slide within the guide sleeve 71. Through the two sets of guide rods 72, the pressure plate 5 of the hydraulic bending machine moves precisely in the vertical direction. The guide rod 72, in cooperation with the guide sleeve 71, restricts its horizontal deviation, avoiding misalignment of the top die 6 during bending, which would cause angular deviation and affect the bending of the steel billet. At the same time, during high-pressure bending, the lateral force generated by the hydraulic rod 4 may cause the pressure plate 5 to twist. The rigid structure of the guide rod 72 can effectively resist this torque and maintain the perpendicularity of the pressure plate 5 to the support platform 3.
[0041] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A hydraulic bending device, comprising a base (1), characterized in that: A support column (2) is fixedly connected to the base (1), a support platform (3) is fixedly connected to the support column (2), a hydraulic rod (4) is fixedly connected to the support platform (3), a pressure plate (5) is fixedly connected to the movable end of the hydraulic rod (4), a top mold (6) is fixedly connected to the pressure plate (5), a guide assembly (7) is provided on the pressure plate (5), two sets of support rods (8) are movably connected to the base (1), a drive assembly (9) is provided on the base (1), the drive assembly (9) is used to drive the support rods (8) to move, and a roller (10) is rotatably connected to the support rods (8).
2. The hydraulic bending device according to claim 1, characterized in that: It also includes a fixing screw (11), the pressure plate (5) has a threaded hole, the top mold (6) has an installation hole, and the fixing screw (11) is threaded through the installation hole and connected in the threaded hole.
3. The hydraulic bending device according to claim 1, characterized in that: The guide assembly (7) includes a guide sleeve (71), a through hole is provided on the support platform (3), the guide sleeve (71) is fixedly connected to the inner wall of the through hole, and a guide rod (72) is slidably connected inside the guide sleeve (71), and the guide rod (72) is fixedly connected to the pressure plate (5).
4. A hydraulic bending device according to claim 1, characterized in that: The base (1) has a sliding groove, and an adjustment plate (12) is slidably connected in the sliding groove. The support rod (8) is fixedly connected to both ends of the adjustment plate (12). A positioning rod (13) is fixedly connected to the inner wall of the sliding groove. A positioning hole is opened on the adjustment plate (12), and the positioning rod (13) is slidably connected in the positioning hole.
5. A hydraulic bending device according to claim 4, characterized in that: The drive assembly (9) includes a threaded rod (91), which is rotatably connected in the groove of the base (1). The threaded rod (91) is threadedly connected to the adjusting plate (12), and a worm gear (94) is fixedly connected to one end of the threaded rod (91).
6. A hydraulic bending device according to claim 5, characterized in that: The drive assembly (9) also includes a motor (92), which is fixedly connected to the base (1). The output end of the motor (92) is fixedly connected to a worm (93), which meshes with a worm wheel (94).
7. A hydraulic bending device according to claim 1, characterized in that: The outer walls of the roller (10) and the top mold (6) are both provided with V-shaped grooves, and the inner walls of the V-shaped grooves are fixedly connected with rubber pads (14).