Bending device
By designing an adjustable-angle bending device, the problems of poor consistency in steel bar bending and high labor intensity in existing technologies have been solved, realizing diversified bending needs and efficient automated operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ROAD & BRIDGE INT CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-03
Smart Images

Figure CN224444411U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building material processing technology, and in particular to a bending device. Background Technology
[0002] During construction, steel bars often need to be bent to meet the requirements for shape or size in different construction scenarios. Currently, most steel bars are manually bent by construction workers using bending machines. However, manual operation results in inconsistent bending of the steel bars and high labor intensity for workers.
[0003] The related technology proposes a bending device, including a driving component, a bending assembly, and two sets of clamping components. The two sets of clamping components can jointly clamp the rebar to be bent, and the driving component can drive the bending assembly to perform a precise bending operation on the rebar. Compared with manual bending, the driving component significantly reduces the labor intensity of construction workers, and the bending assembly can ensure the consistency of the bending angle of the rebar, improving the processing accuracy of the rebar.
[0004] However, in the above-mentioned bending device, the angle between the bending component and the reinforcing bar is fixed, and the bending component can only process the reinforcing bar into a bent state with a fixed angle. Therefore, the above-mentioned bending device cannot meet the diverse needs for reinforcing bar size or bending angle under different construction scenarios. Utility Model Content
[0005] The purpose of this invention is to provide a bending device that can adjust the bending angle, improve the bending consistency of at least two parts to be bent in a single bending operation, improve bending efficiency, and reduce the labor intensity of construction workers.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] This utility model proposes a bending device, comprising:
[0008] A base, on which at least two first clamps are spaced apart;
[0009] A bending assembly includes a bending arm and a connecting joint connected together. At least two second clamps are provided at intervals on the connecting joint. The number of second clamps is the same as that of first clamps and they correspond one-to-one. A single first clamp and a single second clamp can jointly clamp a piece to be bent.
[0010] The driving structure is capable of driving the bending arm to rotate relative to the first clamp in a first direction and bending at least two pieces to be bent.
[0011] The adjustment structure includes an adjustment component and a hinge. The adjustment component is connected to the bending arm and is angle-adjustably disposed at one end of the hinge. The adjustment component can adjust and lock the angle of the bending arm relative to the base. The other end of the hinge is hinged to the base.
[0012] Specifically, the adjusting assembly includes a screw, a first adjusting sleeve, a second adjusting sleeve, and a locking member. The screw has a first threaded portion and a second threaded portion with opposite thread directions spaced apart along the axial direction. The first adjusting sleeve is threadedly connected to the first threaded portion, and the second adjusting sleeve is threadedly connected to the second threaded portion. The first end of the screw is hinged to a hinge member, and the second end is connected to a bent arm. The locking member is threadedly connected to the first end of the screw, and the locking member can lock the hinge member and the first end of the screw.
[0013] Specifically, the bending device also includes an operating component, which includes a first operating handle and a second operating handle. The first operating handle is fixedly connected to the first adjusting sleeve, and the second operating handle is fixedly connected to the second adjusting sleeve.
[0014] Specifically, the bending device also includes a connector. A first connecting sleeve is provided at the second end of the screw, and a second connecting sleeve is provided on the side of the bending arm near the second end of the screw. Both the first and second connecting sleeves are threadedly engaged with the connector to lock the screw and the bending arm.
[0015] Preferably, an angle sensor is also provided on the screw, which is used to obtain the tilt angle of the screw relative to the base.
[0016] Optionally, the drive structure includes a drive component, a gear transmission assembly, and a mounting housing. Both the drive component and the mounting housing are disposed on the base. The gear transmission assembly is installed inside the mounting housing and includes a rack, a first gear, and a second gear. The first gear is connected to the drive component for transmission. The second gear is spaced apart from the first gear along the length direction of the mounting housing. The drive component can drive the second gear to rotate in a first direction through the first gear. The bent arm is connected to the output shaft of the second gear.
[0017] Specifically, the drive structure also includes a reducer, the input end of which is connected to the output end of the drive component, and the output end of the reducer is connected to the first gear.
[0018] Optionally, the connecting joint is detachably connected to the bending arm; and / or, at least two second clamps are detachably connected to the connecting joint.
[0019] Optionally, the lower part of the base is equipped with foldable wheels.
[0020] Optionally, the lower surface of the base may be detachably provided with an anti-slip pad.
[0021] The beneficial effects of this utility model are:
[0022] This invention proposes a bending device. The adjustment structure includes an adjustment component and a hinge. The adjustment component is connected to the bending arm and is angle-adjustably positioned at one end of the hinge. The adjustment component can adjust and lock the angle of the bending arm relative to the base to adapt to different bending angle requirements in different application scenarios, thus improving the versatility of the bending device. A single first clamp and a single second clamp can jointly clamp a workpiece to be bent. The first and second clamps can achieve precise positioning and stable clamping of the workpiece to be bent, improving the bending accuracy of the bending device. At least two first clamps are spaced apart on the base, and at least two second clamps are spaced apart on the connecting joint. The number of first and second clamps is the same and they correspond one-to-one. A single-start drive structure can drive the bending arm to rotate along a first direction and bend at least two workpieces to be bent. Compared with manual bending operations, this improves both the bending efficiency and the bending consistency of the bending device on the at least two workpieces to be bent. In addition, the bending operation is achieved by driving the bending arm through a drive structure, which reduces the labor intensity of construction workers compared to manually bending using a bending machine. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the bending device described in an embodiment of the present invention;
[0024] Figure 2 This is a schematic diagram of the adjustment structure described in an embodiment of the present invention. Figure 1 ;
[0025] Figure 3 This is a schematic diagram of the structure of the adjustment component and the operation component described in the embodiment of this utility model;
[0026] Figure 4 This is a schematic diagram of the adjustment structure described in an embodiment of the present invention. Figure 2 ;
[0027] Figure 5 This is a schematic diagram of the bending component described in an embodiment of the present invention;
[0028] Figure 6 This is a schematic diagram of the structure of the connector described in an embodiment of the present utility model;
[0029] Figure 7 This is a schematic diagram of the driving structure described in an embodiment of the present invention.
[0030] In the picture:
[0031] 100. Base; 110. First clamp; 120. Traveling wheel; 130. Anti-slip mat; 140. Mounting feet;
[0032] 200, Bending assembly; 210, Bending arm; 211, Second connecting sleeve; 220, Connecting joint; 221, Second clamp;
[0033] 300. Drive structure; 310. Drive component; 320. Gear transmission assembly; 321. Rack; 322. First gear; 323. Second gear; 330. Mounting housing; 340. Reducer;
[0034] 400. Adjustment structure; 410. Adjustment assembly; 411. Screw; 4111. First threaded part; 4112. Second threaded part; 4113. First connecting sleeve; 412. First adjusting sleeve; 413. Second adjusting sleeve; 414. Locking element; 420. Hinge element;
[0035] 500, Operating component; 510, First operating handle; 520, Second operating handle;
[0036] 600. Connectors. Detailed Implementation
[0037] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0038] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0040] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.
[0041] like Figures 1-7 As shown, this embodiment provides a bending device, including a base 100, a bending assembly 200, a driving structure 300, and an adjusting structure 400. At least two first clamps 110 are spaced apart on the base 100. The bending assembly 200 includes a bending arm 210 and a connecting joint 220 connected together. At least two second clamps 221 are spaced apart on the connecting joint 220. The number of second clamps 221 is the same as the number of first clamps 110, and they correspond one-to-one. A single first clamp 110 and a single second clamp 221 can jointly clamp a piece to be bent. The driving structure 300 can drive the bending arm 210 to rotate along a first direction and bend the piece to be bent. The adjusting structure 400 includes an adjusting assembly 410 and a hinge 420. The adjusting assembly 410 is connected to the bending arm 210 and is angle-adjustably disposed at one end of the hinge 420. The other end of the hinge 420 is hinged to the base 100.
[0042] In this embodiment, the adjustment structure 400 includes an adjustment component 410 and a hinge 420. The adjustment component 410 is connected to the bending arm 210 and is angle-adjustably disposed at one end of the hinge 420. The adjustment component 410 can adjust its bending angle relative to the hinge 420, thereby adjusting and locking the angle of the bending arm 210 relative to the base 100 to adapt to different bending angle requirements in different application scenarios and improve the versatility of the bending device. It is understood that after the adjustment component 410 adjusts and locks the angle of the bending arm 210 relative to the base 100, the drive structure 300 is activated to drive the bending arm 210 to rotate in the first direction, so as to avoid bending deviation caused by relative rotation between the adjustment component 410 and the hinge 420 during the bending process, thus improving bending accuracy. The end of the hinge 420 that is hinged to the base 100 provides rotational freedom when the bending arm 210 rotates, ensuring smooth bending operation. Furthermore, a single first clamp 110 and a single second clamp 221 can jointly clamp a workpiece to be bent. The first clamp 110 and the second clamp 221 can achieve precise positioning and stable clamping of the workpiece to be bent, improving the bending accuracy of the bending device. At least two first clamps 110 are spaced apart on the base 100, and at least two second clamps 221 are spaced apart on the connecting joint 220. The number of first clamps 110 and second clamps 221 are the same and correspond one-to-one. A single start drive structure 300 can drive the bending arm 210 to rotate along the first direction and bend at least two workpieces to be bent. This not only improves the bending efficiency of the bending device, but also improves the bending consistency of the bending device for the at least two workpieces to be bent compared to manual bending operations. Using the drive structure 300 to drive the bending arm 210 for bending operations reduces the labor intensity of construction workers compared to manual bending using a bending machine. Specifically, the first direction is the rotation direction of the bent arm 210 as it approaches the first clamp 110, and will not be described in detail hereafter.
[0043] Optionally, the connecting joint 220 is detachably connected to the bending arm 210; and / or, at least two second clamps 221 are detachably connected to the connecting joint 220. The detachable connection between the connecting joint 220 and the bending arm 210 simplifies the assembly and disassembly process, facilitating the inspection and replacement of the connecting joint 220. The connecting joint 220 and the bending arm 210 can be threaded or snap-fit connected, etc. The detachable connection of at least two second clamps 221 to the connecting joint 220 allows for independent replacement of a single second clamp 221, reducing replacement costs. The second clamps 221 and the connecting joint 220 can be threaded or snap-fit connected, etc. In this embodiment, at least two second clamps 221 are fixed to the connecting joint 220, and the connecting joint 220 and the bending arm 210 are detachably connected, improving replacement efficiency.
[0044] Specifically, the adjusting assembly 410 includes a screw 411, a first adjusting sleeve 412, a second adjusting sleeve 413, and a locking member 414. The screw 411 is provided with a first threaded portion 4111 and a second threaded portion 4112 with opposite thread directions along the axial direction. The first adjusting sleeve 412 is threadedly connected to the first threaded portion 4111, and the second adjusting sleeve 413 is threadedly connected to the second threaded portion 4112. The first end of the screw 411 is hinged to the hinge member 420, and the second end is connected to the bent arm 210. The locking member 414 is threadedly connected to the first end of the screw 411, and the locking member 414 can lock the hinge member 420 and the first end of the screw 411. The screw 411 has a first threaded portion 4111 and a second threaded portion 4112 with opposite thread directions. A first adjusting sleeve 412 is threadedly connected to the first threaded portion 4111, and a second adjusting sleeve 413 is threadedly connected to the second threaded portion 4112. Rotating the first adjusting sleeve 412 and the second adjusting sleeve 413 along a second direction allows for opposite adjustments to the tilt angle of the screw 411 relative to the base 100 before bending. This makes adjusting the angle of the screw 411 relative to the base 100 simple and easy for construction personnel, offering high flexibility in the adjustment process. The second direction is the circumferential direction of the first adjusting sleeve 412, forming an angle with the first direction. The screw 411 is connected to the bending arm 210. By adjusting the screw 411, the tilt angle of the bending arm 210 relative to the base 100 can be indirectly adjusted, thereby obtaining parts to be bent at different bending angles under the same driving conditions. Understandably, the locking member 414 locks the screw 411 and one end of the hinge member 420 after the angle of the bending arm 210 relative to the base 100 is adjusted to the correct position. This restricts the position of the screw 411 relative to the hinge member 420 when the bending device bends, thereby causing an angular deviation between the bending arm 210 connected to the screw 411 and the base 100.
[0045] The base 100 may be provided with mounting feet 140, and the hinge 420 is hinged to the mounting feet 140. It is understood that when adjusting the tilt angle of the adjusting screw 411 relative to the hinge 420, the hinge 420 should be locked to the mounting feet 140 to precisely adjust the tilt angle of the screw 411, providing an accurate angle reference for the subsequent bending angle of the part to be bent. After the tilt angle of the adjusting screw 411 relative to the hinge 420 is adjusted, the locking state between the hinge 420 and the mounting feet 140 is released. For example, the locking process between the hinge 420 and the mounting feet 140 can be achieved by tightening a lock nut.
[0046] Optionally, such as Figure 3As shown, the bending device also includes an operating component 500, which includes a first operating handle 510 and a second operating handle 520. The first operating handle 510 is fixedly connected to the first adjusting sleeve 412, and the second operating handle 520 is fixedly connected to the second adjusting sleeve 413. The first operating handle 510 and the second operating handle 520 provide a force point for the operator to rotate the first adjusting sleeve 412 and the second adjusting sleeve 413. Compared to rotating the first adjusting sleeve 412 and the second adjusting sleeve 413 by completely covering them with the palm, the first operating handle 510 and the second operating handle 520 also allow for fine adjustment, improving adjustment accuracy.
[0047] Specifically, such as Figures 1-6 As shown, the bending device also includes a connector 600. A first connecting sleeve 4113 is provided at the second end of the screw 411, and a second connecting sleeve 211 is provided on the side of the bending arm 210 near the second end of the screw 411. Both the first connecting sleeve 4113 and the second connecting sleeve 211 are threaded into the connector 600 to lock the screw 411 and the bending arm 210. The connector 600, with both ends threaded into the first connecting sleeve 4113 and the second connecting sleeve 211 respectively, improves the connection strength and stability between the screw 411 and the bending arm 210. The threaded engagement of the first connecting sleeve 4113 and the second connecting sleeve 211 with the connector 600 is consistent with the threaded engagement principle of the first adjusting sleeve 412 and the first threaded portion 4111, and will not be elaborated further here. Preferably, the second connecting sleeve 211 is disposed in the middle region of the bending arm 210, which can not only achieve the effect of saving effort and reduce the driving force requirement of the driving structure 300, but also improve the uniformity of force on the bending arm 210 and avoid local stress concentration in the bending arm 210.
[0048] Preferably, an angle sensor is also provided on the screw 411. The angle sensor is used to obtain the tilt angle of the screw 411 relative to the base 100. The angle sensor allows the construction personnel to know the angle adjustment data of the screw 411 in real time. Furthermore, since the screw 411 is connected to the bending arm 210, when the bending device performs a bending operation, the construction personnel can also know the bending angle of the part to be bent in real time according to the angle sensor on the screw 411. The angle sensor improves the accuracy of the bending angle adjustment and the bending accuracy of the part to be bent. For example, the part to be bent is a reinforcing bar.
[0049] Optionally, by Figure 1 and Figure 7As shown, the drive structure 300 includes a drive component 310, a gear transmission assembly 320, and a mounting housing 330. Both the drive component 310 and the mounting housing 330 are mounted on the base 100. The gear transmission assembly 320 is mounted within the mounting housing 330 and includes a rack 321, a first gear 322, and a second gear 323. The first gear 322 is connected to the drive component 310, and the second gear 323 is spaced apart from the first gear 322 along the length of the mounting housing 330. The drive component 310 can drive the second gear 323 to rotate in a first direction via the first gear 322. The bent arm 210 is connected to the output shaft of the second gear 323. The drive structure 300 drives the bent arm 210 through the transmission of the first gear 322 and the second gear 323, resulting in high precision and stability in the transmission process. The mounting housing 330 improves the dust and moisture protection of the gear transmission assembly 320, enhancing drive accuracy and reliability. The drive component 310 can be a drive motor or a hydraulic cylinder, etc. Furthermore, the drive component 310, gear transmission assembly 320, mounting housing 330, adjustment structure 400, and bending assembly 200 are all integrated into the base 100, resulting in a high degree of integration and a small footprint for the bending device. To improve the installation stability of these components on the base 100, mounting grooves for each component can be provided on the base 100.
[0050] Specifically, the drive structure 300 also includes a reducer 340, the input end of which is connected to the output end of the drive component 310, and the output end of the reducer 340 is drively connected to the first gear 322. The reducer 340 allows for precise adjustment of the rotational speed of the drive component 310, meeting the bending speed requirements of different parts to be bent and improving the versatility of the bending device.
[0051] Optionally, the lower part of the base 100 is provided with foldable wheels 120. The wheels 120 meet the movement needs of construction personnel for the bending device. The foldable design of the wheels 120 reduces the occupied area, facilitates long-distance transportation of the bending device, improves transportation stability, and also restricts further movement of the bending device after it has been moved into position, ensuring the bending stability of the part to be bent. It also enhances the stopping stability of the bending device in complex terrain. For example, a foldable wheel 120 is provided at each of the four corners of the base 100 along its circumference.
[0052] Specifically, an anti-slip pad 130 is detachably provided on the lower surface of the base 100. After the bending device is moved into place, the anti-slip pad 130 can be installed on the bottom of the base 100 to prevent the bending device from shifting its position when bending the workpiece, thereby improving the bending stability and reliability of the workpiece. When it is necessary to move the bending device, the anti-slip pad 130 can be removed from the base 100 to reduce the moving resistance of the bending device.
[0053] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. A bending device, characterized in that include: A base (100) having at least two first clamps (110) spaced apart on it; The bending assembly (200) includes a bending arm (210) and a connecting joint (220) connected together. At least two second clamps (221) are spaced apart on the connecting joint (220). The number of second clamps (221) is the same as that of the first clamps (110) and they correspond one-to-one. A single first clamp (110) and a single second clamp (221) can jointly clamp a piece to be bent. A drive structure (300) is provided, which is capable of driving the bending arm (210) to rotate relative to the first clamp (110) in a first direction and bend at least two of the parts to be bent. An adjustment structure (400) includes an adjustment component (410) and a hinge (420). The adjustment component (410) is connected to the bent arm (210) and is angle-adjustably disposed at one end of the hinge (420). The adjustment component (410) can adjust and lock the angle of the bent arm (210) relative to the base (100). The other end of the hinge (420) is hinged to the base (100).
2. The bending apparatus according to claim 1, characterized by The adjusting assembly (410) includes a screw (411), a first adjusting sleeve (412), a second adjusting sleeve (413), and a locking member (414). The screw (411) is provided with a first threaded portion (4111) and a second threaded portion (4112) with opposite thread directions along the axial direction. The first adjusting sleeve (412) is threadedly connected to the first threaded portion (4111), and the second adjusting sleeve (413) is threadedly connected to the second threaded portion (4112). The first end of the screw (411) is hinged to the hinge member (420), and the second end is connected to the bent arm (210). The locking member (414) is threadedly connected to the first end of the screw (411), and the locking member (414) can lock the hinge member (420) and the first end of the screw (411).
3. The bending apparatus according to claim 2, characterized by The bending device further includes an operating component (500), which includes a first operating handle (510) and a second operating handle (520). The first operating handle (510) is fixedly connected to the first adjusting sleeve (412), and the second operating handle (520) is fixedly connected to the second adjusting sleeve (413).
4. The bending apparatus according to claim 2, characterized by The bending device further includes a connector (600). The second end of the screw (411) is provided with a first connecting sleeve (4113). The side of the bending arm (210) near the second end of the screw (411) is provided with a second connecting sleeve (211). Both the first connecting sleeve (4113) and the second connecting sleeve (211) are threadedly engaged with the connector (600) to lock the screw (411) and the bending arm (210).
5. The bending apparatus according to claim 2, characterized by An angle sensor is also provided on the screw (411), which is used to obtain the tilt angle of the screw (411) relative to the base (100).
6. The bending apparatus according to claim 1, characterized by The drive structure (300) includes a drive member (310), a gear transmission assembly (320), and a mounting housing (330). The drive member (310) and the mounting housing (330) are both disposed on the base (100). The gear transmission assembly (320) is installed in the mounting housing (330) and includes a rack (321), a first gear (322), and a second gear (323). The first gear (322) is connected to the drive member (310) for transmission. The second gear (323) is spaced apart from the first gear (322) along the length direction of the mounting housing (330). The drive member (310) can drive the second gear (323) to rotate along the first direction through the first gear (322). The bent arm (210) is connected to the output shaft of the second gear (323).
7. The bending apparatus according to claim 6, characterized by The drive structure (300) further includes a reducer (340), the input end of which is connected to the output end of the drive member (310), and the output end of which is connected to the first gear (322).
8. The bending apparatus according to any one of claims 1 to 7, characterized by The connecting joint (220) is detachably connected to the bending arm (210); and / or, at least two of the second clamps (221) are detachably connected to the connecting joint (220).
9. The bending apparatus according to any one of claims 1 to 7, characterized in that, The lower part of the base (100) is provided with foldable wheels (120).
10. The bending apparatus according to any one of claims 1 to 7, characterized in that, The lower surface of the base (100) is detachably provided with an anti-slip pad (130).