Die positioning structure of high-precision hydraulic bending machine

Abstract

The application discloses a die positioning structure of a high-precision hydraulic bending machine and belongs to the technical field of bending machines. Mainly including die positioning assembly and work station plate, the bending die is inserted and installed on the work station plate, and the two sides of the bending die are respectively connected with the die positioning assembly; the die positioning assembly comprises a driving mechanism and a rotating mechanism, the driving mechanism drives the rotating mechanism to rotate on the workbench, the rotating mechanism comprises a rotating plate, an ear seat is fixedly installed on one side of the rotating plate, the driving mechanism is hinged with the ear seat, the two sides of the bending die are integrally formed with mounting parts, the mounting parts are provided with clamping grooves, the clamping plates are rotationally clamped with the interiors of the clamping grooves, through cooperation of multiple positioning structures, the first positioning seats on the two sides of the lifting plate and the second positioning seats of the workbench and the positioning rods form sliding guide and limit horizontal movement; the sinking parts at the bottom of the bending die are inserted with the grooves of the work station plate, combined with accurate cooperation of the first and second positioning columns and the corresponding positioning holes, multi-direction positioning is realized.

Description

Technical Field

[0001] This application relates to the field of bending machine technology, specifically to a mold positioning structure for a high-precision hydraulic bending machine. Background Technology

[0002] A hydraulic bending machine is a specialized processing equipment that uses pressure generated by a hydraulic system to bend metal sheets into shape using a die. It is widely used in industries such as machinery manufacturing, sheet metal processing, automobile manufacturing, and aerospace. Existing hydraulic bending machine die positioning structures are primarily used to fix the die during bending operations, ensuring the die maintains a stable position during the stamping process, thereby guaranteeing the accuracy and quality of the workpiece bending.

[0003] However, in existing hydraulic bending machines, die positioning mostly relies on simple mechanical limits or bolt fixing. On the one hand, the positioning components have low matching accuracy, and the die is prone to offset or tilting due to lateral force during stamping, resulting in deviations in the bending angle and size of the workpiece.

[0004] On the other hand, the mold installation and disassembly process is cumbersome, requiring manual adjustment and bolt tightening repeatedly, resulting in low mold changing efficiency and affecting production progress. Utility Model Content

[0005] The purpose of this invention is to provide a mold positioning structure for a high-precision hydraulic bending machine to solve the problems mentioned in the background art.

[0006] The technical solution adopted by this application to solve its technical problem is:

[0007] A mold positioning structure for a high-precision hydraulic bending machine, wherein the mold positioning structure is mounted on a workbench, a suspension is fixedly mounted on the top surface of the workbench, and a stamping component for stamping and bending is mounted on the suspension.

[0008] The mold positioning structure includes a mold positioning component and a work station plate. A bending mold is inserted and installed on the work station plate, and both sides of the bending mold are respectively engaged and connected with the mold positioning component.

[0009] The mold positioning assembly includes a drive mechanism and a rotation mechanism. The drive mechanism drives the rotation mechanism to rotate on the worktable. The rotation mechanism includes an ear seat, a rotating plate, a shaft seat, and a clamping plate. The ear seat is fixedly installed on one side of the rotating plate. The drive mechanism is hinged to the ear seat. Multiple clamping plates are provided, and multiple clamping plates are fixedly connected to the other side of the rotating plate. Rotating shafts are fixedly connected to both ends of the rotating plate. The shaft seat is fixedly installed on the top surface of the worktable, and the rotating shaft is rotatably connected in the shaft seat.

[0010] The top surface of the bending die is provided with a bending groove, and the two sides of the bending die are integrally formed with mounting parts. The mounting parts are provided with slots, and the slots are rotated and engaged with the slots.

[0011] Preferably, the bottom of the bending die is integrally formed with a recessed part, and the top surface of the work station plate is provided with a groove, and the recessed part is inserted into the inside of the groove.

[0012] Preferably, a second positioning post is fixedly connected to the recessed part, a second positioning hole is opened in the groove, the second positioning post is inserted into the second positioning hole, a first positioning hole is opened on the top surface of both sides of the workstation plate, and a first positioning post is fixedly connected to the bottom surface of the mounting part, the first positioning post is inserted into the first positioning hole.

[0013] Preferably, the driving mechanism includes a fixed frame, a support, and a hydraulic cylinder. The fixed frame is fixedly installed on the inner top surface of the workbench, the side wall of the fixed frame is fixedly connected to the support, the side wall of the hydraulic cylinder is rotatably installed to the support, and the piston rod end of the hydraulic cylinder is hinged to the inside of the lug seat.

[0014] Preferably, the stamping assembly includes a servo cylinder, a lifting plate, a guide rod, a guide sleeve, and a stamping plate. The servo cylinder is mounted on the top surface of the suspension. Guide sleeves are installed on the top surfaces of the suspension on both sides of the servo cylinder. The interior of the guide sleeve is slidably connected to the guide rod. The ends of the guide rod and the piston rod of the servo cylinder are fixedly installed on the top surface of the lifting plate. The bottom surface of the lifting plate is fixedly installed on the stamping plate.

[0015] Preferably, a first positioning seat is fixedly installed on both sides of the lifting plate, and a second positioning seat is correspondingly installed on the top surface of the worktable. A positioning rod is installed in the second positioning seat, and a sliding hole is opened inside the first positioning seat, in which the positioning rod is inserted and slid.

[0016] The beneficial effects of this application are:

[0017] 1. This technical solution greatly improves the positioning accuracy of the mold through the cooperation of multiple positioning structures. The first positioning seats on both sides of the lifting plate and the second positioning seats and positioning rods of the worktable form a sliding guide to restrict lateral movement. The recessed part at the bottom of the bending mold is inserted into the groove of the station plate. Combined with the precise cooperation of the first and second positioning pins and the corresponding positioning holes, multi-directional positioning is achieved. At the same time, the rotation and engagement of the clamping plate and the mold clamping groove in the rotating mechanism further eliminates the gap, effectively resists the lateral force during stamping, avoids mold offset or tilting, and greatly reduces the bending angle and dimensional error of the workpiece, thus ensuring the bending quality.

[0018] 2. The mold positioning component in this technical solution uses a hydraulic cylinder to drive the rotating plate to rotate, enabling the quick engagement and disengagement of the clamping plate and the mold slot. This replaces the traditional manual bolt tightening method. When changing molds, operators only need to start the drive mechanism to quickly complete the installation and disassembly of the mold without repeatedly adjusting and tightening bolts. This significantly shortens the mold change time, greatly improves production efficiency, effectively solves the problem of low mold change efficiency affecting production progress, and meets the high-efficiency requirements of mass production.

[0019] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is an overall schematic diagram of the mold positioning structure of a high-precision hydraulic bending machine according to this utility model;

[0022] Figure 2 This is a schematic diagram of the bending die, die positioning assembly, and workstation plate of this utility model.

[0023] Figure 3 This is a schematic diagram of the mold positioning component structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the bending die structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the bottom structure of the bending die of this utility model;

[0026] Figure 6 This is a schematic diagram of the workstation plate structure of this utility model;

[0027] Figure 7 This is a schematic diagram of the stamping component structure of this utility model.

[0028] The following are the labeling elements in the figure:

[0029] 1. Workbench;

[0030] 2. Suspension;

[0031] 3. Stamping assembly; 31. Servo electric cylinder; 32. Lifting plate; 33. Guide rod; 34. Guide sleeve; 35. Stamping plate; 36. First positioning seat;

[0032] 4. Bending die; 41. Bending groove; 42. Sinking part; 43. Mounting part; 44. Slot; 45. First positioning post; 46. Second positioning post;

[0033] 5. Mold positioning assembly; 51. Fixing frame; 52. Support; 53. Hydraulic cylinder; 54. Ear seat; 55. Rotating plate; 56. Rotating shaft; 57. Shaft seat; 58. Clamping plate;

[0034] 6. Workstation plate; 61. Groove; 62. First positioning hole; 63. Second positioning hole;

[0035] 7. Second positioning seat; 71. Positioning rod. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present application.

[0038] Please see Figure 1-7 The embodiments provided by this utility model are as follows:

[0039] like Figure 7 As shown, a mold positioning structure for a high-precision hydraulic bending machine is provided. The mold positioning structure is installed on a workbench 1. A suspension 2 is fixedly installed on the top surface of the workbench 1. A stamping assembly 3 for stamping and bending is installed on the suspension 2. The stamping assembly 3 includes a servo cylinder 31, a lifting plate 32, a guide rod 33, a guide sleeve 34, and a stamping plate 35. The servo cylinder 31 is installed on the top surface of the suspension 2. Guide sleeves 34 are installed on the top surfaces of the suspension 2 on both sides of the servo cylinder 31. The interior of the guide sleeve 34 is slidably connected to the guide rod 33. The piston rod ends of the guide rod 33 and the servo cylinder 31 are both fixedly installed on the top surface of the lifting plate 32. The bottom surface of the lifting plate 32 is fixedly installed on the stamping plate 35.

[0040] When the servo electric cylinder 31 is working, the piston rod makes a linear extension and retraction motion, which drives the lifting plate 32 to rise and fall vertically. At the same time, the guide rod 33 slides in the guide sleeve 34, which constrains the movement trajectory of the lifting plate 32, ensuring that it moves in the vertical direction and avoiding swaying. This allows the lifting plate 32 to drive the stamping plate 35 to move synchronously, so that the stamping plate 35 is aligned with the bending die 4 below, realizing the stamping and bending action.

[0041] Furthermore, such as Figure 1 and Figure 2 As shown, first positioning seats 36 are fixedly installed on both sides of the lifting plate 32, and second positioning seats 7 are respectively installed on the top surface of the worktable 1. A positioning rod 71 is installed in the second positioning seat 7. A sliding hole is opened inside the first positioning seat 36, and the positioning rod 71 slides in the sliding hole. When the lifting plate 32 is raised and lowered with the servo cylinder 31, the first positioning seat 36 slides along the positioning rod 71. The positioning rod 71 is inserted into the sliding hole, which restricts the lateral movement of the lifting plate 32. The fit clearance between the positioning rod 71 and the sliding hole is small, forming a rigid positioning, ensuring that the lifting plate 32 always maintains a horizontal posture during vertical movement, thereby enhancing the stability of the lifting plate 32, preventing the lifting plate 32 from tilting due to lateral force during stamping, affecting the bending accuracy, and ensuring the consistency of position for each stamping action.

[0042] like Figure 2 and Figure 3 As shown, the mold positioning structure includes a mold positioning component 5 and a workstation plate 6. A bending mold 4 is inserted and installed on the workstation plate 6. Both sides of the bending mold 4 are respectively engaged with the mold positioning component 5. The mold positioning component 5 includes a drive mechanism and a rotation mechanism. The drive mechanism drives the rotation mechanism to rotate on the worktable 1. The rotation mechanism includes an ear seat 54, a rotating plate 55, a shaft seat 57, and a clamping plate 58. The ear seat 54 is fixedly installed on one side of the rotating plate 55. The drive mechanism is hinged to the ear seat 54. When the drive mechanism is working, it pushes the ear seat 54 to drive the rotating plate 55 to rotate around the rotating shaft 56 of the shaft seat 57. When the rotating plate 55 rotates, the clamping plate 58 rotates accordingly and is engaged in the clamping grooves 44 on both sides of the bending mold 4, fixing the mold on the workstation plate 6.

[0043] Specifically, the drive mechanism includes a fixed frame 51, a support 52, and a hydraulic cylinder 53. The fixed frame 51 is fixedly installed on the inner top surface of the workbench 1. The side wall of the fixed frame 51 is fixedly connected to the support 52. The side wall of the hydraulic cylinder 53 is rotatably installed with the support 52. The piston rod end of the hydraulic cylinder 53 is hinged to the inside of the lug 54.

[0044] Multiple clamping plates 58 are provided, and multiple clamping plates 58 are fixedly connected to the other side of the rotating plate 55. The two ends of the rotating plate 55 are respectively fixedly connected to the rotating shaft 56. The shaft seat 57 is fixedly installed on the top surface of the workbench 1. The rotating shaft 56 is rotatably connected in the shaft seat 57. The top surface of the bending die 4 is provided with a bending groove 41. The two sides of the bending die 4 are integrally formed with mounting parts 43. The mounting parts 43 are provided with slots 44. The clamping plates 58 are rotated and engaged with the inside of the slots 44.

[0045] After hydraulic oil is introduced into the hydraulic cylinder 53, the piston rod extends or retracts. Since the side wall of the hydraulic cylinder 53 is rotatably connected to the support 52, the linear motion of the piston rod is converted into a pushing or pulling force on the lug 54. After the lug 54 is pushed, it drives the rotating plate 55 to rotate around the rotating shaft 56, realizing the rotation action of the clamping plate 58. The rotating plate 55 is installed in the bearing 57 through the rotating shafts 56 at both ends, forming a rotating pair to ensure that the rotating plate 55 rotates smoothly. When the rotating plate 55 rotates, the clamping plate 58 is inserted into the clamping groove 44 of the mold mounting part 43. As the rotating plate 55 continues to rotate, the clamping plate 58 is tightly fitted with the inner wall of the clamping groove 44 to form a locking state. Multiple clamping plates 58 are evenly distributed and can clamp both sides of the mold at the same time, ensuring the uniformity and reliability of the clamping, thereby providing precise positioning for the replacement and installation of the bending mold 4.

[0046] Furthermore, such as Figure 4 , Figure 5 and Figure 6 As shown, the bottom of the bending die 4 is integrally formed with a recessed part 42, and the top surface of the station plate 6 is provided with a groove 61. The recessed part 42 is inserted into the inside of the groove 61. A second positioning post 46 is fixedly connected to the recessed part 42. A second positioning hole 63 is provided in the groove 61. The second positioning post 46 is inserted into the second positioning hole 63. The top surfaces of both sides of the station plate 6 are respectively provided with first positioning holes 62. The bottom surface of the mounting part 43 is respectively fixedly connected with a first positioning post 45. The first positioning post 45 is inserted into the first positioning hole 62.

[0047] When the bending die 4 is installed, the recessed part 42 is inserted into the groove 61 to achieve the initial positioning and vertical support of the bending die 4 on the station plate 6. The first positioning post 45 is inserted into the first positioning hole 62 of the station plate 6, and the second positioning post 46 is inserted into the second positioning hole 63 to form multi-directional positioning, so as to avoid the bending die 4 from shifting or rotating during installation. At the same time, the pressure formed on both sides of the bending die 4 by the die positioning component 5 ensures that the installed bending die 4 is not easy to move when the stamping component 3 stamps and bends the workpiece, thus ensuring the positional accuracy required for workpiece bending.

[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mold positioning structure for a high-precision hydraulic bending machine, characterized in that: On the mold positioning structure mounting workbench (1), a suspension (2) is fixedly installed on the top surface of the workbench (1), and a stamping assembly (3) for stamping and bending is installed on the suspension (2). The mold positioning structure includes a mold positioning component (5) and a work station plate (6). A bending mold (4) is inserted and installed on the work station plate (6). The two sides of the bending mold (4) are respectively engaged and connected with the mold positioning component (5). The mold positioning assembly (5) includes a driving mechanism and a rotating mechanism. The driving mechanism drives the rotating mechanism to rotate on the worktable (1). The rotating mechanism includes an ear seat (54), a rotating plate (55), a shaft seat (57), and a clamping plate (58). The ear seat (54) is fixedly installed on one side of the rotating plate (55). The driving mechanism is hinged to the ear seat (54). Multiple clamping plates (58) are provided. Multiple clamping plates (58) are fixedly connected to the other side of the rotating plate (55). Rotating shafts (56) are fixedly connected to both ends of the rotating plate (55). The shaft seat (57) is fixedly installed on the top surface of the worktable (1). The rotating shaft (56) is rotatably connected in the shaft seat (57). The bending mold (4) has a bending groove (41) on its top surface. The bending mold (4) has an integrally formed mounting part (43) on both sides. The mounting part (43) has a slot (44) on its mounting part (43). The card plate (58) rotates and engages with the slot (44).

2. The mold positioning structure of a high-precision hydraulic bending machine according to claim 1, characterized in that: The bottom of the bending die (4) is integrally formed with a recessed part (42), and the top surface of the work station plate (6) is provided with a groove (61). The recessed part (42) is inserted into the inside of the groove (61).

3. The mold positioning structure of a high-precision hydraulic bending machine according to claim 2, characterized in that: A second positioning post (46) is fixedly connected to the recessed part (42), and a second positioning hole (63) is opened in the groove (61). The second positioning post (46) is inserted into the second positioning hole (63). The top surfaces of both sides of the workstation plate (6) are respectively provided with first positioning holes (62). The bottom surfaces of the mounting part (43) are respectively fixedly connected with first positioning posts (45), and the first positioning posts (45) are inserted into the first positioning holes (62).

4. The mold positioning structure of a high-precision hydraulic bending machine according to claim 1, characterized in that: The drive mechanism includes a fixed frame (51), a support (52) and a hydraulic cylinder (53). The fixed frame (51) is fixedly installed on the inner top surface of the workbench (1). The side wall of the fixed frame (51) is fixedly connected to the support (52). The side wall of the hydraulic cylinder (53) is rotatably installed with the support (52). The piston rod end of the hydraulic cylinder (53) is hinged to the inside of the lug (54).

5. The mold positioning structure of a high-precision hydraulic bending machine according to claim 1, characterized in that: The stamping assembly (3) includes a servo cylinder (31), a lifting plate (32), a guide rod (33), a guide sleeve (34), and a stamping plate (35). The servo cylinder (31) is installed on the top surface of the suspension (2). The top surfaces of the suspension (2) located on both sides of the servo cylinder (31) are equipped with guide sleeves (34). The inside of the guide sleeve (34) is slidably connected to the guide rod (33). The piston rod ends of the guide rod (33) and the servo cylinder (31) are fixedly installed on the top surface of the lifting plate (32). The bottom surface of the lifting plate (32) is fixedly installed on the stamping plate (35).

6. The mold positioning structure of a high-precision hydraulic bending machine according to claim 5, characterized in that: The lifting plate (32) is fixedly installed on both sides with a first positioning seat (36), and the top surface of the worktable (1) is respectively installed with a second positioning seat (7). The second positioning seat (7) is installed with a positioning rod (71). The first positioning seat (36) has a sliding hole inside, and the positioning rod (71) slides in the sliding hole.

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