A device for straightening a shackle

Abstract

The utility model relates to a technical field of unloading buckle, provide a kind of unloading buckle top bending device, including roof, the top of roof is provided with top bending cylinder, the telescopic end of top bending cylinder is provided with top bending column, top bending column is away from the one end of top bending cylinder and is provided with top bending plate, the bottom of top bending plate is provided with top bending strip;The below of top bending strip is also provided with fixed frame, the fixed frame inner diameter radial direction is also symmetrically rotatably connected with fixed pulley;When top bending is carried out to blank, first, the blank after heating treatment is placed above two fixed pulleys, and the one end of blank is abutted with limiting column, to limit the purpose of the displacement distance of blank, avoid the position of blank by artificial naked eye observation to determine, cannot ensure that the central axis of blank is completely located in the middle of pre-bending pulley, and blank is prone to positional deviation Problem;Ensure that the central axis of blank is located in the middle of fixed pulley, improve top bending quality, improve production qualified rate.

Description

Technical Field

[0001] This utility model relates to the field of shackle technology, and more specifically, to a shackle bending device. Background Technology

[0002] A shackle is a commonly used mechanical connection component, mainly used to connect and secure ropes, chains or other mechanical parts; it usually consists of two main parts: the body (or "body") and the cross pin; the body is a ring structure with an opening, and the cross pin is used to pass through the opening to secure the two ends of the shackle together.

[0003] In existing shackle manufacturing technology, the entire production process is usually quite complex, involving multiple steps, mainly including material preparation, pre-bending, main top bending, and cooling and shaping. Among them, the top bending process of the shackle is the core link in the entire manufacturing process, which is mainly responsible for forming the key part of the shackle - the bow-shaped structure.

[0004] The specific operating steps are as follows: First, the heated billet is placed above the pre-bending pulley. Then, the operator carefully observes and determines the accurate position of the billet with the naked eye, ensuring that its central axis is located in the middle of the pre-bending pulley. After confirming that the position is correct, the top bending cylinder begins to descend, applying pressure to the middle of the forging billet to cause it to bend and deform, and finally obtaining a locking billet that meets the shape requirements.

[0005] However, during the production of the locking mechanism, although operators determine the position of the blank by visual inspection, this method still has a certain degree of error. Since there is no dedicated limiting mechanism to control the displacement distance of the blank, it is also impossible to ensure that the central axis of the blank is completely located in the center of the pre-bending pulley. This makes it easy for the blank to shift position during the top bending process, resulting in the top bending effect not meeting the requirements, ultimately affecting the overall quality of the product and reducing the production qualification rate.

[0006] Furthermore, when bending thinner blanks, the support and constraint between the two pre-bending pulleys are relatively weak, making it easier for the blanks to rotate or deviate within the pre-bending pulleys. This rotation and deviation will further aggravate the instability during the bending process, causing the shape of the bent blank to deviate more from the design requirements, which will seriously affect the production quality and increase the defect rate.

[0007] Therefore, a shackle bending device is proposed to improve the existing problems. Utility Model Content

[0008] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a buckle bending device.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a shackle bending device, comprising a top frame, a bending cylinder being provided at the top of the top frame, a bending column being provided at the telescopic end of the bending cylinder, a bending plate being provided at the end of the bending column away from the bending cylinder, and a bending strip being provided at the bottom of the bending plate; a fixing frame is also provided below the bending strip, and a fixing pulley is symmetrically rotatably connected to the fixing frame in the inner radial direction.

[0010] The present invention is further configured such that: the telescopic end of the top bending cylinder passes through the top of the top frame and is connected to the end of the top bending column away from the top bending plate; the end of the top bending strip away from the top bending plate is provided with a top bending groove, and the top bending groove is arc-shaped.

[0011] The present invention is further configured such that: a base frame is provided below the top frame, a bearing plate is provided on the top of the base frame, a through groove is provided on the top of the bearing plate, the fixing frame is located on the top of the bearing plate, and the side of the fixing frame is U-shaped.

[0012] The present invention is further configured such that: a limiting component is provided at the top of the base frame, the limiting component includes a limiting plate and a limiting post disposed on one side of the limiting plate; the limiting plate is L-shaped, and the limiting post is used to restrict the movement position of the material.

[0013] The present invention is further configured such that: a connecting plate is provided at the bottom of the limiting post, electric sliders are symmetrically arranged at both ends of the connecting plate in the axial direction, and a slide rail is provided below the electric sliders.

[0014] The present invention is further configured such that the electric slider can slide on the corresponding slide rail, and the slide rail is located on the top of the base frame.

[0015] The present invention is further configured such that: a support block is symmetrically arranged on the top of the bearing plate in the axial direction, an adjusting cylinder is symmetrically arranged on the top of the support block in the radial direction, and an adjusting plate is provided on the telescopic end of the adjusting cylinder.

[0016] By adopting the above technical solution, once one end of the billet comes into contact with the limiting post, the bending cylinder is activated. Its telescopic end pushes the bending post, bending plate, and bending strip closer to the billet, causing the bending strip to press the outer wall of the middle part of the billet downward. At the same time, all four adjusting cylinders are activated, pushing the adjusting plate closer to the outer wall of the billet to limit the billet. This ensures that the billet is also located in the middle of the fixed pulley in the axial direction, avoiding the problem of rotation or displacement within the pre-bending pulley when bending thinner billets, which is more likely to occur due to the relatively weak support and constraint between the two pre-bending pulleys. This ensures the stability of the bending process.

[0017] In summary, this application includes at least one of the following beneficial technical effects: (1) When the billet needs to be bent, the heated billet is placed above the two fixed pulleys and one end of the billet is pushed to abut against the limiting post, thereby limiting the displacement distance of the billet. This avoids the need to determine the position of the billet by visual observation and ensures that the central axis of the billet is completely in the middle of the pre-bending pulley. This makes it easy for the billet to shift position during the bending process. This ensures that the central axis of the billet is in the middle of the fixed pulley, improves the bending quality, and thus improves the production qualification rate.

[0018] (2) When the top bending cylinder is started, its extension end pushes the top bending column, top bending plate and top bending strip close to the billet, so that the top bending strip presses the middle outer wall of the billet downward. At this time, due to the limited space between the two fixed pulleys, the two ends of the billet will bend upward and drive the two fixed pulleys to roll, while the middle part will be concave downward. The entire billet forms a U-shaped shackle, thus achieving the purpose of top bending.

[0019] (3) When one end of the billet comes into contact with the limiting post, the top bending cylinder is activated. Its telescopic end pushes the top bending post, top bending plate and top bending strip close to the billet, so that the top bending strip presses down the middle outer wall of the billet. At the same time, all four adjusting cylinders are activated, pushing the adjusting plate close to the outer wall of the billet to limit the billet. This ensures that the billet is also located in the middle of the fixed pulley in the axial direction, avoiding the problem that when bending a thinner billet, it is easier for it to rotate or deviate in the pre-bending pulley because its support and constraint between the two pre-bending pulleys are relatively weak. This ensures the stability during the top bending process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the shackle bending device of this utility model; Figure 2 This is a schematic diagram of the overall structure of the top bending column and the top bending plate in this utility model; Figure 3 This is a schematic diagram of the overall structure of the top bending strip and the top bending groove in this utility model; Figure 4 This is a schematic diagram of the overall structure of the fixing frame and fixing pulley in this utility model; Figure 5 This is a schematic diagram of the overall structure of the limiting component in this utility model; Figure 6 This is a schematic diagram of the overall structure of the support block, adjusting cylinder, and adjusting plate in this utility model; Explanation of reference numerals in the attached diagram: 1. Top frame; 2. Top-bend cylinder; 3. Top-bending column; 4. Top bend plate; 5. Top bend strip; 51. Top bend groove; 6. Fixture; 7. Fixed pulleys; 8. Base frame; 81. Bearing plate; 82. Through groove; 83. Support block; 84. Adjusting cylinder; 85. Adjusting plate; 9. Limiting component; 91. Limiting plate; 92. Limiting post; 93. Connecting plate; 94. Electric slider; 95. Slide rail. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0023] Please see Figures 1-6 The present invention provides the following technical solution: Example 1, see Figures 1-6 A shackle bending device includes a top frame 1, a bending cylinder 2 is provided on the top of the top frame 1, a bending column 3 is provided at the telescopic end of the bending cylinder 2, a bending plate 4 is provided at the end of the bending column 3 away from the bending cylinder 2, a bending strip 5 is provided at the bottom of the bending plate 4, and a fixing frame 6 is provided below the bending strip 5, and a fixing pulley 7 is symmetrically rotatably connected in the inner radial direction N of the fixing frame 6.

[0024] When bending the billet, the heated billet is placed above two fixed pulleys 7, and one end of the billet is pushed to abut against the limiting post 92. This restricts the displacement distance of the billet and avoids the need to determine the position of the billet by visual inspection. It is impossible to ensure that the central axis of the billet is completely in the center of the pre-bending pulley, which makes it easy for the billet to shift position during the bending process. This ensures that the central axis of the billet is in the center of the fixed pulley 7, improves the bending quality, and thus improves the production qualification rate.

[0025] Next, the top bending cylinder 2 is activated, and its telescopic end pushes the top bending column 3, top bending plate 4 and top bending strip 5 closer to the billet, so that the top bending strip 5 presses the middle outer wall of the billet downward. At this time, due to the limited space between the two fixed pulleys 7, the two ends of the billet will bend upward and drive the two fixed pulleys 7 to roll, while the middle part will be concave downward, and the entire billet forms a U-shaped buckle, thereby achieving the purpose of top bending.

[0026] See Figures 1-6Furthermore, the telescopic end of the top bending cylinder 2 passes through the top of the top frame 1 and is connected to the end of the top bending column 3 away from the top bending plate 4. The top bending strip 5 is provided with a top bending groove 51 at the end away from the top bending plate 4. The top bending groove 51 is arc-shaped.

[0027] During the process of the top bending strip 5 pressing the middle outer wall of the billet downward, the top bending groove 51 will fit with the middle outer wall of the billet, thereby reducing the risk of billet deformation and ensuring the top bending quality of the billet.

[0028] See Figures 1-6 Furthermore, a base frame 8 is provided below the top frame 1, and a bearing plate 81 is provided on the top of the base frame 8. A through groove 82 is provided on the top of the bearing plate 81, and a fixing frame 6 is located on the top of the bearing plate 81. The side of the fixing frame 6 is U-shaped.

[0029] During the process of the top bending strip 5 pressing down the middle outer wall of the billet, the middle outer wall of the billet is concave downward and passes through the through groove 82, located below the bearing plate 81, so there is no interference.

[0030] See Figures 1-6 Furthermore, the top of the base frame 8 is also provided with a limiting member 9, which includes a limiting plate 91 and a limiting post 92 disposed on one side of the limiting plate 91; the limiting plate 91 is L-shaped and the limiting post 92 is used to limit the movement position of the material.

[0031] See Figures 1-6 Furthermore, a connecting plate 93 is provided at the bottom of the limiting post 92, and electric sliders 94 are symmetrically arranged at both ends of the connecting plate 93 in the M direction. A slide rail 95 is provided below the electric sliders 94.

[0032] See Figures 1-6 Furthermore, the electric slider 94 can slide on the corresponding slide rail 95, which is located on the top of the base frame 8.

[0033] When bending the billet, the heated billet is placed above two fixed pulleys 7, and one end of the billet is pushed to abut against the limiting post 92, thereby limiting the displacement distance of the billet.

[0034] When it is necessary to adjust the limiting distance of the limiting post 92, the electric slider 94 can be activated, so that the electric slider 94 slides on the slide rail 95, and drives the limiting plate 91 and the limiting post 92 to move synchronously through the connecting plate 93, thereby achieving the purpose of adjusting the limiting distance of the limiting post 92.

[0035] See Figures 1-6Furthermore, a support block 83 is symmetrically arranged on the top of the support plate 81 in the axial direction M, and an adjusting cylinder 84 is symmetrically arranged on the top of the support block 83 in the radial direction N. An adjusting plate 85 is provided at the telescopic end of the adjusting cylinder 84.

[0036] When one end of the billet comes into contact with the limiting post 92, the top bending cylinder 2 is activated. Its telescopic end pushes the top bending post 3, the top bending plate 4, and the top bending strip 5 closer to the billet, so that the top bending strip 5 presses the middle outer wall of the billet downward. At the same time, all four adjusting cylinders 84 are activated, pushing the adjusting plate 85 closer to the outer wall of the billet, limiting the billet, so that the billet is also located in the middle of the fixed pulley in the axial direction. This avoids the problem of rotation or displacement within the pre-bending pulley when bending thinner billets, because the support and constraint between the two pre-bending pulleys are relatively weak. This ensures the stability of the top bending process.

[0037] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

Claims

1. A buckle bending device, characterized in that: include, Top frame (1), top frame (1) is provided with a top bending cylinder (2), the telescopic end of the top bending cylinder (2) is provided with a top bending column (3), the end of the top bending column (3) away from the top bending cylinder (2) is provided with a top bending plate (4), the bottom of the top bending plate (4) is provided with a top bending strip (5). A fixing frame (6) is also provided below the top bending strip (5), and a fixing pulley (7) is symmetrically rotatably connected in the radial direction inside the fixing frame (6). A base frame (8) is also provided below the top frame (1), and a limiting member (9) is also provided on the top of the base frame (8). The limiting member (9) includes a limiting plate (91) and a limiting post (92) provided on one side of the limiting plate (91). The limiting plate (91) is L-shaped, and the limiting post (92) is used to limit the movement of the material.

2. The buckle bending device according to claim 1, characterized in that: The telescopic end of the top bending cylinder (2) passes through the top of the top frame (1) and is connected to the end of the top bending column (3) away from the top bending plate (4). The top bending strip (5) is provided with a top bending groove (51) at the end away from the top bending plate (4). The top bending groove (51) is arc-shaped.

3. The shackle bending device according to claim 1, characterized in that: The top of the base frame (8) is provided with a bearing plate (81), and the top of the bearing plate (81) is provided with a through groove (82). The fixing frame (6) is located on the top of the bearing plate (81), and the side of the fixing frame (6) is U-shaped.

4. The shackle bending device according to claim 3, characterized in that: The bottom of the limiting post (92) is also provided with a connecting plate (93), and electric sliders (94) are symmetrically arranged at both ends of the connecting plate (93) in the axial direction. A slide rail (95) is provided below the electric sliders (94).

5. The shackle bending device according to claim 4, characterized in that: The electric slider (94) can slide on the corresponding slide rail (95), which is located on the top of the base frame (8).

6. The shackle bending device according to claim 3, characterized in that: The top of the bearing plate (81) is symmetrically provided with a support block (83) in the axial direction, and the top of the support block (83) is symmetrically provided with an adjusting cylinder (84) in the radial direction. The telescopic end of the adjusting cylinder (84) is provided with an adjusting plate (85).

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