A bending mechanism of a hydraulic bending machine

Abstract

The utility model relates to the field of bending mechanism, and disclose a kind of bending mechanism of hydraulic bending machine, including support, hydraulic cylinder one, piston rod one, hydraulic cylinder two, piston rod two, the plane of support is equipped with groove, the bottom surface middle part of support is equipped with through-hole, the bottom surface middle part of support is fixedly installed with hydraulic cylinder two, and piston rod two is connected on the upper transmission of hydraulic cylinder two, and the bottom surface four corners of support are fixedly connected with support leg, and the upper surface of support is fixedly installed with support column corresponding the four around grooves of support, the top surface of two adjacent support columns at support short shaft is connected with top plate, the top plate middle part of support is equipped with through-hole, and the top plate middle part of support is fixedly installed with hydraulic cylinder one, and piston rod one is connected on the upper transmission of hydraulic cylinder one, and clamping mechanism is arranged in the groove of support, and bending mechanism is arranged on piston rod one, the bending mechanism of the utility model can change lower mould, and the shape of upper mould can be adjusted by rotating carousel, and it is efficient and accurate, and production efficiency and quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of bending mechanisms, specifically a bending mechanism for a hydraulic bending machine. Background Technology

[0002] In the production process of steel structure plates, due to the special requirements of the products, it is often necessary to bend the steel plates at specific angles or in multiple positions. In traditional bending machine processing, for the same steel plate, due to different production requirements, operators need to bend it into various shapes. However, it is often difficult to achieve the desired bending effect in one go, so multiple bending is required. At the same time, operators need to frequently change bending dies, first removing the original die and then installing the new die to achieve the required processing shape. This operation process is relatively cumbersome and affects the overall processing efficiency. To address this, we propose a bending mechanism for a hydraulic bending machine. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a bending mechanism for a hydraulic bending machine, which solves the aforementioned problems.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a bending mechanism for a hydraulic bending machine, comprising a support, a first hydraulic cylinder, a first piston rod, a second hydraulic cylinder, and a second piston rod. A groove is formed on the plane of the support, and a through hole is formed in the center of the bottom surface of the groove. The second hydraulic cylinder is fixedly installed in the center of the bottom surface of the support, and the second piston rod is driven and connected to the second hydraulic cylinder. Four support legs are fixedly connected to the four corners of the bottom surface of the support. Four support columns are fixedly installed on the upper surface of the support corresponding to the four sides of the groove. A top plate is connected to the top surface of two adjacent support columns at the short axis of the support. A through hole is formed in the center of the top plate of the support. The first hydraulic cylinder is fixedly installed in the center of the top plate of the support, and the first piston rod is driven and connected to the first hydraulic cylinder. A clamping mechanism is provided in the groove of the support, and a bending mechanism is provided on the first piston rod.

[0005] Preferably, a sliding groove is provided on the opposite surface of the two adjacent support columns at the short axis of the bracket.

[0006] Preferably, the bending mechanism includes a sliding plate, a rotating ring, a bending die, and a fixed plate. Two sets of sliding protrusions are symmetrically fixedly installed on the long axis side of the sliding plate. The sliding protrusions of the sliding plate are engaged with the sliding groove of the bracket, and the sliding plate and the support column of the bracket are slidably connected. The piston rod passes through a through hole in the middle of the top plate of the bracket and is fixedly connected to the upper surface of the sliding plate. A fixed plate is symmetrically fixedly installed on the bottom surface of the sliding plate, and a through hole is provided on the fixed plate. Rotating shafts are symmetrically fixedly installed on both sides of the bending die. The rotating shaft of the bending die and the through hole of the fixed plate are rotatably connected coaxially. A rotating ring is fixedly installed on one end face of the rotating shaft of the bending die, which protrudes from the fixed plate. Multiple anti-slip blocks are arranged in a circular array on the outer arc surface of the rotating ring.

[0007] Preferably, the clamping mechanism includes a clamping block, a slide bar, and a clamping housing. The clamping housing is fixedly installed in a slot opened in the bracket. The clamping housing has a hollow internal structure. A through hole is opened in the middle of the bottom surface of the clamping housing. The through hole of the clamping housing and the through hole on the bottom surface of the bracket are coaxially aligned. Two slots are symmetrically opened on the upper surface of the clamping housing. A slide bar is symmetrically fixedly installed on the upper surface of the clamping housing in the middle of the two slots. Sliding grooves are symmetrically opened on both sides of the slide bar. Rotating protrusions are symmetrically fixedly connected to both sides of the slide bar below the sliding grooves. An opening is opened on the bottom surface of the clamping block. Sliding protrusions are symmetrically fixedly installed on the inner walls on both sides of the opening of the clamping block. The sliding protrusions of the clamping block and the sliding grooves of the slide bar are engaged, and the clamping block and the slide bar are slidably connected. Rotating protrusions are symmetrically fixedly connected to both sides of the clamping block. A clamping plate is installed on the opposite surfaces of the two clamping blocks.

[0008] Preferably, the clamping mechanism further includes a connecting rod and a connecting plate. The piston rod passes through the through holes of the bracket and the clamping housing, and the connecting plate is fixedly connected to one end face of the piston rod inside the clamping housing. Two sets of rotating protrusions are symmetrically fixedly connected to the long axis side wall of the connecting plate. The connecting rod is approximately "L"-shaped, and two oblong holes are opened on the shaft wall of the connecting rod. A through hole is opened at the bend of the connecting rod. The rotating protrusion of the connecting plate is slidably connected to the oblong hole on the long axis of the connecting rod. The rotating protrusion of the slide bar is rotatably connected to the through hole at the bend of the connecting rod on the same axis. The rotating protrusion of the clamping block is slidably connected to the oblong hole on the short axis of the connecting rod.

[0009] Preferably, the second bending die is located between the upper surface of the clamping shell and the first bending die, and the second bending die is located between the two clamping blocks.

[0010] Compared with the prior art, this utility model provides a bending mechanism for a hydraulic bending machine, which has the following beneficial effects:

[0011] 1. When the lower die of this hydraulic bending machine needs to be replaced, the operator only needs to control the clamping mechanism, which can automatically release or clamp the die. This design greatly simplifies the die replacement process, allowing the operator to easily remove the old die and install the new die without the need for complicated external tools or equipment. The entire replacement process is quick and efficient, greatly shortening the time required for die replacement. This not only improves production efficiency but also reduces downtime caused by die replacement, allowing the production line to return to normal operation more quickly, thereby improving overall production capacity and flexibility.

[0012] 2. The bending mechanism of this hydraulic bending machine has an upper mold with various shapes to meet different processing requirements. When the lower mold is replaced, the upper mold can be adjusted to the corresponding shape of the new lower mold simply by rotating the rotating ring. This design makes the mold conversion more flexible and efficient. This automatic alignment function ensures more precise matching between molds and reduces processing errors caused by human error. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the present invention;

[0015] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;

[0016] Figure 4 This is a cross-sectional schematic diagram of the clamping mechanism of this utility model;

[0017] Figure 5 This is an exploded schematic diagram of the clamping mechanism of this utility model.

[0018] In the diagram: 1. Bracket; 2. Hydraulic cylinder one; 3. Piston rod one; 4. Sliding plate; 5. Rotating ring; 6. Bending die one; 7. Bending die two; 8. Clamping block; 9. Connecting rod; 10. Hydraulic cylinder two; 11. Piston rod two; 12. Connecting plate; 13. Sliding bar; 14. Clamping shell; 15. Fixing plate. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5 A bending mechanism for a hydraulic bending machine includes a support 1, a hydraulic cylinder 2, a piston rod 3, a hydraulic cylinder 10, and a piston rod 11. The support 1 has a groove on its flat surface, and a through hole is formed in the center of the bottom surface of the groove. The hydraulic cylinder 10 is fixedly installed in the center of the bottom surface of the support 1, and the piston rod 11 is driven and connected to the hydraulic cylinder 10. Four support legs are fixedly connected to the four corners of the bottom surface of the support 1. Four support columns are fixedly installed on the upper surface of the support 1 around the groove. A top plate is connected to the top surface of two adjacent support columns at the short axis of the support 1. A through hole is formed in the center of the top plate of the support 1. The hydraulic cylinder 2 is fixedly installed in the center of the top plate of the support 1, and the piston rod 3 is driven and connected to the hydraulic cylinder 2. A clamping mechanism is provided in the groove of the support 1, and a bending mechanism is provided on the piston rod 3.

[0021] Furthermore, sliding grooves are provided on the opposing surfaces of the two adjacent support columns at the short axis of bracket 1.

[0022] Furthermore, the bending mechanism includes a sliding plate 4, a rotating ring 5, a bending die 6, and a fixed plate 15. Two sets of sliding protrusions are symmetrically fixedly installed on the long axis side of the sliding plate 4. The sliding protrusions of the sliding plate 4 are engaged with the sliding grooves of the bracket 1, and the sliding plate 4 and the support column of the bracket 1 are slidably connected. The piston rod 3 passes through the through hole in the middle of the top plate of the bracket 1 and is fixedly connected to the upper surface of the sliding plate 4. The fixed plate 15 is symmetrically fixedly installed on the bottom surface of the sliding plate 4. The fixed plate 15 has through holes. Rotating shafts are symmetrically fixedly installed on both sides of the bending die 6. The rotating shafts of the bending die 6 and the through holes of the fixed plate 15 rotate coaxially. The bending die 6 has a rotating ring 5 fixedly installed on one end face of the fixed plate 15, protruding from the rotating shaft. The outer arc surface of the rotating ring 5 has multiple anti-slip blocks arranged in a circumferential array. The anti-slip blocks on the outer arc surface of the rotating ring 5 facilitate the operator to apply force. Rotating the rotating ring 5 causes the bending die 6 to rotate around the rotating shaft. Due to the coaxial design of the rotating shaft and the through hole of the fixed plate 15, the stability and accuracy of the rotation of the bending die 6 are ensured, so that it can be accurately adjusted to the shape corresponding to the new lower die. This ensures the matching accuracy between the upper and lower dies, effectively reduces the processing error caused by poor die matching, and meets the bending processing needs of different products.

[0023] Furthermore, the clamping mechanism includes a clamping block 8, a slide bar 13, and a clamping housing 14. The clamping housing 14 is fixedly installed in a slot opened in the bracket 1. The clamping housing 14 has a hollow internal structure. A through hole is opened in the middle of the bottom surface of the clamping housing 14. The through hole of the clamping housing 14 and the through hole on the bottom surface of the bracket 1 are coaxially corresponding. Two slots are symmetrically opened on the upper surface of the clamping housing 14. A slide bar 13 is symmetrically fixedly installed on the upper surface of the clamping housing 14 between the two slots. The two sides of the slide bar 13 are symmetrically provided with sliding grooves. Rotating protrusions are symmetrically fixedly connected to the two sides of the slide bar 13 below the sliding grooves. The bottom surface of the clamping block 8 is provided with an opening. Sliding protrusions are symmetrically fixedly installed on the inner walls of the two sides of the opening of the clamping block 8. The sliding protrusions of the clamping block 8 and the sliding grooves of the slide bar 13 are engaged, and the clamping block 8 and the slide bar 13 are slidably connected. Rotating protrusions are symmetrically fixedly connected to the two sides of the clamping block 8. Clamping plates are installed on the opposite surfaces of the two clamping blocks 8.

[0024] Furthermore, the clamping mechanism also includes a connecting rod 9, a connecting plate 12, and a piston rod 11 passing through the through holes of the bracket 1 and the clamping housing 14. The connecting plate 12 is fixedly connected to one end face of the piston rod 11 inside the clamping housing 14. Two sets of rotating protrusions are symmetrically fixedly connected to the long axis side wall of the connecting plate 12. The connecting rod 9 is approximately "L"-shaped, with two oblong holes on its shaft wall and a through hole at the bend of the connecting rod 9. The rotating protrusions of the connecting plate 12 and the oblong holes on the long axis of the connecting rod 9 are slidably connected. The rotating protrusions of the slide bar 13 and the through hole at the bend of the connecting rod 9 are coaxially rotatably connected. The rotating protrusions of the clamping block 8 and the oblong holes on the short axis of the connecting rod 9 are slidably connected. When the bending die 7 needs to be replaced, the hydraulic cylinder 10 drives the piston rod 11 to move, causing the piston rod 11 to... The moving connecting plate 12 moves, and the rotating protrusion on the connecting plate 12 slides in connection with the waist-shaped hole on the long shaft of the "L"-shaped connecting rod 9. When the connecting plate 12 moves, the clamping block 8, which is slidably connected to the waist-shaped hole on the short shaft of the connecting rod 9, slides on the slide bar 13 through the transmission action of the connecting rod 9. The slide bar 13 is fixed on the clamping housing 14, and the sliding grooves on both sides of the slide bar cooperate with the sliding protrusion at the bottom of the clamping block 8 to ensure the stable movement of the clamping block 8. Clamping plates are installed on the opposite surfaces of the two clamping blocks 8. Driven by the piston rod 11, the clamping blocks 8 move closer or further away from each other, thereby realizing the automatic clamping or loosening of the bending die 7. The operator only needs to control the action of the hydraulic cylinder 10 to easily complete the die replacement operation without the need for complicated tools, which greatly improves the replacement efficiency and reduces downtime.

[0025] Furthermore, bending die 2 7 is located between the upper surface of the clamping shell 14 and bending die 1 6, and between the two clamping blocks 8. Hydraulic cylinder 1 2 pushes piston rod 1 3 under the action of the hydraulic system. Piston rod 1 3 passes through the through hole in the middle of the top plate of bracket 1 and is fixedly connected to sliding plate 4. When piston rod 1 3 extends or retracts, it drives sliding plate 4 to slide up and down along the sliding groove on the opposite surface of the adjacent support column at the short axis of bracket 1. Bending die 1 6 is installed on the fixed plate 15 symmetrically fixed to the bottom of sliding plate 4. Bending die 1 6 is connected to fixed plate 15 through a rotating shaft and can rotate around the shaft at a certain angle. During the bending process, bending die 1 6 above descends with sliding plate 4 and works together with bending die 2 7 below to act on the steel plate placed between them. According to the set bending process requirements, pressure is applied to the steel plate to make it plastically deform and complete the bending operation.

[0026] Working principle: When it is necessary to replace the bending die 7, the hydraulic cylinder 10 drives the piston rod 11 to move. The piston rod 11 moves the connecting plate 12. The rotating protrusion on the connecting plate 12 is slidably connected to the oblong hole on the long shaft of the "L"-shaped connecting rod 9. When the connecting plate 12 moves, the clamping block 8, which is slidably connected to the oblong hole on the short shaft of the connecting rod 9, slides on the slide bar 13 through the transmission action of the connecting rod 9. The slide bar 13 is fixed on the clamping housing 14, and the sliding grooves on both sides of the slide bar cooperate with the sliding protrusion at the bottom of the clamping block 8 to ensure the stable movement of the clamping block 8. Clamping plates are installed on the opposite surfaces of the two clamping blocks 8. Driven by the piston rod 11, the clamping blocks 8 move closer or further away from each other, thereby realizing the automatic clamping or loosening of the bending die 7. The operator only needs to control the hydraulic cylinder 10. The mold replacement operation can be easily completed with simple movements, without the need for complicated tools, which greatly improves the replacement efficiency and reduces downtime. After the bending mold 7 is replaced, the rotating ring 5 is rotated to apply force using its anti-slip structure, which drives the bending mold 6 to rotate and adjust it to the shape corresponding to the new bending mold 7, ensuring precise mold matching, reducing processing errors, and meeting different processing needs. After both bending mold 6 and bending mold 7 have been replaced, the steel plate can be bent. The hydraulic cylinder 2 drives the piston rod 3 to move, and the piston rod 3 drives the sliding plate 4 to slide up and down along the sliding groove of the support column of the bracket 1. The bending mold 6 at the bottom of the sliding plate 4 moves with it and cooperates with the bending mold 7 fixed below to perform the bending operation on the steel plate placed between them.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending mechanism for a hydraulic bending machine, comprising a support (1), a hydraulic cylinder (2), a piston rod (3), a hydraulic cylinder (10), and a piston rod (11), wherein a groove is provided on the plane of the support (1), a through hole is provided in the middle of the bottom surface of the groove of the support (1), a hydraulic cylinder (10) is fixedly installed in the middle of the bottom surface of the support (1), a piston rod (11) is driven and connected to the hydraulic cylinder (10), four legs are fixedly connected at the four corners of the bottom surface of the support (1), four support columns are fixedly installed on the upper surface of the support (1) corresponding to the four sides of the groove of the support (1), a top plate is connected to the top surface of two adjacent support columns at the short axis of the support (1), a through hole is provided in the middle of the top plate of the support (1), a hydraulic cylinder (2) is fixedly installed in the middle of the top plate of the support (1), and a piston rod (3) is driven and connected to the hydraulic cylinder (2), characterized in that: The bracket (1) is provided with a clamping mechanism in the groove, and the piston rod (3) is provided with a bending mechanism.

2. The bending mechanism of a hydraulic bending machine according to claim 1, characterized in that: The bracket (1) has sliding grooves on the opposite surfaces of the two adjacent support columns at the short axis.

3. The bending mechanism of a hydraulic bending machine according to claim 2, characterized in that: The bending mechanism includes a sliding plate (4), a rotating ring (5), a bending die (6), and a fixing plate (15). Two sets of sliding protrusions are symmetrically fixed on the long axis side of the sliding plate (4). The sliding protrusions of the sliding plate (4) are engaged with the sliding groove of the bracket (1), and the sliding plate (4) and the support column of the bracket (1) are slidably connected. The piston rod (3) passes through the through hole opened in the middle of the top plate of the bracket (1) and is fixedly connected to the upper surface of the sliding plate (4). Next, a fixing plate (15) is symmetrically fixedly installed on the bottom surface of the sliding plate (4). The fixing plate (15) has a through hole. A rotating shaft is symmetrically fixedly installed on both sides of the bending die (6). The rotating shaft of the bending die (6) and the through hole of the fixing plate (15) are rotatably connected coaxially. A rotating ring (5) is fixedly installed on one end face of the rotating shaft of the bending die (6) protruding from the fixing plate (15). There are multiple anti-slip blocks arranged in a circular array on the outer arc surface of the rotating ring (5).

4. The bending mechanism of a hydraulic bending machine according to claim 3, characterized in that: The clamping mechanism includes a clamping block (8), a slide bar (13), and a clamping shell (14). The clamping shell (14) is fixedly installed in a slot opened in the bracket (1). The clamping shell (14) has a hollow internal structure. A through hole is opened in the middle of the bottom surface of the clamping shell (14). The through hole of the clamping shell (14) and the through hole on the bottom surface of the bracket (1) are coaxially aligned. Two slots are symmetrically opened on the upper surface of the clamping shell (14). Slide bars (13) are symmetrically fixedly installed on the upper surface of the clamping shell (14) in the middle of the two slots of the clamping shell (14). (13) has symmetrical sliding grooves on both sides. Rotating protrusions are symmetrically fixedly connected to the two sides of the slide bar (13) below the sliding groove of the slide bar (13). An opening is opened on the bottom surface of the clamping block (8). Sliding protrusions are symmetrically fixedly installed on the inner walls of the opening of the clamping block (8). The sliding protrusions of the clamping block (8) and the sliding groove of the slide bar (13) are engaged. The clamping block (8) and the slide bar (13) are slidably connected. Rotating protrusions are symmetrically fixedly connected to both sides of the clamping block (8). Clamping plates are installed on the opposite surfaces of the two clamping blocks (8).

5. The bending mechanism of a hydraulic bending machine according to claim 4, characterized in that: The clamping mechanism also includes a connecting rod (9) and a connecting plate (12). The piston rod (11) passes through the through holes of the bracket (1) and the clamping housing (14). The connecting plate (12) is fixedly connected to one end face of the piston rod (11) inside the clamping housing (14). Two sets of rotating protrusions are symmetrically fixedly connected to the long axis side wall of the connecting plate (12). The connecting rod (9) is roughly "L" shaped. Two waist-shaped holes are opened on the shaft wall of the connecting rod (9). A through hole is opened at the bend of the connecting rod (9). The rotating protrusion of the connecting plate (12) and the waist-shaped hole on the long axis of the connecting rod (9) are slidably connected. The rotating protrusion of the slide bar (13) and the through hole at the bend of the connecting rod (9) are axially rotatably connected. The rotating protrusion of the clamping block (8) and the waist-shaped hole on the short axis of the connecting rod (9) are slidably connected.

6. The bending mechanism of a hydraulic bending machine according to claim 4, characterized in that: Bending die two (7) is located between the upper surface of the clamping shell (14) and bending die one (6), and bending die two (7) is located between the two clamping blocks (8).

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