Chain ring bending tool

Abstract

The utility model relates to a chain ring bending tool which comprises an upper die installed on a main shaft of an oil press and a lower die arranged on a workbench, the upper die comprises a connecting rod connected to the main shaft of the oil press in the vertical direction, and a flat pin shaft extending in the front-back direction is installed on the connecting rod. The lower die comprises a bottom plate installed on the workbench, a plurality of supporting frames are installed on the bottom plate and located in front of the connecting rods, rolling wheel mechanisms are rotationally connected to the supporting frames, a hot bending channel is formed between every two adjacent rolling wheel mechanisms, and flat pin shafts are located in the hot bending channels. The chain ring bending device comprises a supporting frame, a roller mechanism is arranged on the supporting frame, the roller mechanism comprises a fixing bolt connected to the supporting frame through a bolt, the fixing bolt comprises a threaded rod and a smooth rod, rollers are rotationally connected to the smooth rod, and flat pin shafts are located between the adjacent rollers. The tool can be detached from the oil press at any time according to needs.

Description

Technical Field

[0001] The utility model relates to the technical field of chain link processing, in particular to the field of chain link bending, and specifically refers to a chain link bending tool. Background Art

[0002] Chain links, as important components for connection and support, are widely used in various machinery, equipment and structures. Chain links generally go through the following processing steps during production: cutting, bending, welding, heat treatment and polishing. Chain link bending is a common process in the metal processing and forging industries. Traditional chain link bending usually relies on specialized bending machines.

[0003] Traditional bending machines have high investment costs. For many small businesses or start-ups, purchasing and maintaining such large equipment is a huge financial burden. In addition, these devices usually occupy a large area and require special factories and facilities to accommodate them, which further increases production costs. Traditional bending machines are complicated to operate and require professional technicians to operate and maintain. This not only increases labor costs, but also limits the popularity and application scope of the equipment. Especially in some temporary production environments, such as project sites or on-site maintenance, it is difficult to ensure that there are enough professional technicians to operate. Specialized bending machines are usually only suitable for specific production environments. For small businesses or temporary production needs, it is impractical to purchase and maintain such equipment. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides a chain link bending tool. The tool can be used to perform chain link bending operations using a hydraulic press. The device can be conveniently placed on the hydraulic press and can be removed from the hydraulic press at any time as needed.

[0005] The utility model is realized through the following technical scheme, which provides a chain link bending tool, including an upper mold installed on the main shaft of the hydraulic press and a lower mold arranged on a workbench, the upper mold including a connecting rod connected to the main shaft of the hydraulic press along the up-down direction, the connecting rod being provided with a flat pin extending along the front-back direction, the lower mold including a base plate installed on the workbench, a plurality of support frames being installed on the base plate, the support frames being located in front of the connecting rod, a roller mechanism being rotatably connected to the support frame, a bending channel being formed between adjacent roller mechanisms, and the flat pin being located in the bending channel.

[0006] The utility model places the rods by setting a lower die and extrude the rods by an upper die, so that the rods can smoothly complete the bending process; the flat pin shaft can press the rods downward; the connecting rod is located at the rear of the support frame; when the main shaft of the hydraulic press moves downward, the connecting rod and the support frame can be prevented from interfering and contacting; the rods are supported on the support frame; when the main shaft of the hydraulic press is pressed downward and the flat pin shaft extrude the rods, the rods located in the bending channel will be deformed; the roller mechanism can make the rods slide smoothly; as the flat pin shaft is pressed downward, the rods are bent into shape in the bending channel.

[0007] As an optimization, the roller mechanism includes a fixing bolt connected to the support frame by bolts, the fixing bolt includes a threaded rod and a smooth rod, the smooth rod is rotatably connected with a roller, and the flat pin is located between adjacent rollers. The setting of this optimization scheme facilitates the assembly of the roller mechanism, the threaded rod of the fixing bolt can fix the fixing thread on the support frame, the roller can rotate on the smooth rod, one fixing bolt can realize multiple functions, and the roller can facilitate the movement of the chain ring during the bending process, so that the rod can be smoothly processed into the chain ring.

[0008] As an optimization, the support frame includes two vertical plates, the vertical plates are fixedly connected to the bottom plate, a placement channel is formed between the two vertical plates, the threaded rod is threadedly connected to the vertical plates, and the smooth rod is located between the two vertical plates. The setting of this optimization scheme facilitates the placement of the roller, and at the same time, a placement channel is formed between the two vertical plates, which is convenient for the placement of the chain ring to be bent.

[0009] As an optimization, a support plate is fixedly connected to the bottom plate, the outer end of the support frame is fixedly connected to the support plate, and an adjusting bolt is threadedly connected to the support plate in the left-right direction. With the setting of this optimization scheme, the support plate can play a certain supporting role for the support frame, so that the support frame can be more stably fixed on the bottom plate, and the adjusting bolt on the support plate can play an adjusting role. The extension length of the adjusting bolt can be adjusted according to the length of the chain link to be bent, so that the chain link to be bent can be placed on the support frame more accurately.

[0010] As an optimization, the connecting rod is provided with a groove extending in the front-to-back direction, the flat pin is placed in the groove, and the connecting rod is threadedly connected with a clamping bolt extending left and right, and the clamping bolt extends to the flat pin. The setting of this optimization scheme facilitates the installation and disassembly of the flat pin, and facilitates the maintenance and disassembly of the flat pin. The flat pin can be fixed in the groove by simply placing the flat pin in the groove and then tightening the clamping bolt. The flat pin can be taken out by loosening the clamping bolt.

[0011] As an optimization, the connecting rod is fixed to the main shaft of the hydraulic press through a fixing plate, the connecting rod is fixedly connected to the fixing plate, and a plurality of long holes penetrating the fixing plate are provided on the fixing plate. The setting of this optimization scheme facilitates the installation of the connecting rod on the main shaft of the hydraulic press, and the fixing plate is provided with a long hole, and the fixing plate can be fixed to different positions on the main shaft of the hydraulic press by adjusting the position of the bolt in the long hole, so that the front and rear positions of the upper mold can be adjusted, making the installation more precise.

[0012] The beneficial effects of the utility model are as follows: the utility model does not need to rely on a special bending machine, and can be used by simply being installed on an existing hydraulic press, which greatly reduces equipment investment costs and maintenance costs. The tooling has strong adaptability, and the distance between the two support frames can be adjusted according to chain links of different sizes. After adjusting the appropriate distance, the support frames are welded to the base plate. The utility model is simple and convenient to operate, has high production efficiency, and has broad market prospects and application value. At the same time, the utility model has a compact structure, occupies a small space, and is easy to operate in a limited working space. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 It is a schematic diagram of the use of the utility model;

[0015] Figure 3 This is a schematic diagram of the placement of the chain links to be bent;

[0016] Figure 4 It is a schematic diagram of the roller mechanism structure;

[0017] Figure 5 is a schematic diagram of the connecting plate structure;

[0018] As shown in the figure:

[0019] 1. Base plate, 2. Support plate, 3. Vertical plate, 4. Adjusting bolt, 5. Roller mechanism, 51. Fixing bolt, 511. Threaded rod, 512. Smooth rod, 52. Roller, 6. Flat pin shaft, 7. Connecting rod, 8. Fixing plate, 9. Clamping bolt, 10. Chain link. DETAILED DESCRIPTION

[0020] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0021] like Figures 1 to 5The utility model shown is a chain link bending tool, comprising an upper die installed on the main shaft of the hydraulic press and a lower die set on the workbench, with a rod placed between the upper die and the lower die, and the upper die comprising a connecting rod 7 connected to the main shaft of the hydraulic press along the up and down directions, the connecting rod 7 is rectangular, and the connecting rod is fixed to the main shaft of the hydraulic press through a fixing plate 8, the fixing plate 8 is a rectangle extending in the horizontal direction, the upper end of the connecting rod is welded to the lower end of the fixing plate 8, and the fixing plate 8 is provided with a plurality of long holes penetrating the fixing plate 8, four long holes are provided, extending in the front and rear directions and penetrating the fixing plate 8 in the up and down directions, two long holes are provided on the front end face of the fixing plate, and two long holes are provided on the rear end face of the fixing plate, and the two long holes located on the same end face are arranged in the left and right directions.

[0022] A flat pin 6 extending in the front-to-back direction is installed on the connecting rod 7, and the lower end of the flat pin is arc-shaped. When the bending is completed, the lower end of the flat pin 6 fits with the inner wall of the chain ring. A groove extending in the front-to-back direction is provided on the connecting rod. The groove is provided on the front end face of the connecting rod 7. The groove is located in the lower section of the connecting rod 7. The inner wall of the groove fits with the outer wall of the flat pin 6. The flat pin 6 is placed in the groove. A threaded hole extending to the groove is provided on the left end face of the connecting rod. A clamping bolt 9 extending left and right is threadedly connected to the connecting rod. The clamping bolt 9 extends through the threaded hole to the left end face of the flat pin 6. The flat pin can be clamped onto the connecting rod 7 by tightening the clamping bolt.

[0023] The lower mold includes a base plate 1 installed on the workbench, and the base plate 1 is pressed on the workbench by connecting bolts. The base plate 1 extends in the horizontal direction, and a plurality of support frames are installed on the base plate. Two support frames are provided, and the support frames extend in the left and right directions. The two support frames are symmetrically arranged on the left and right. The support frames are located in front of the connecting rod 7, and the front end of the flat pin shaft 6 extends to the middle section of the support frame. The support frame is rotatably connected with a roller mechanism 5, the roller mechanism of the left support frame is installed on the right side of the support frame, and the roller mechanism of the right support frame is installed on the left side of the support frame. A bending channel is formed between adjacent roller mechanisms, and the flat pin shaft 6 is located in the bending channel, that is, the flat pin shaft is located between the two support frames.

[0024] The support frame includes two vertical plates 3, which extend in the left and right directions. The vertical plates are fixedly connected to the base plate 1, and a placement channel is formed between the two vertical plates. The front-to-back distance of the placement channel is greater than the diameter of the rod. The rod to be processed is placed in the placement channel, and the front end of the flat pin shaft 6 extends to the front of the rear end face of the front side vertical plate. A support plate 2 is fixedly connected to the base plate. Two support plates 2 are provided, and a support plate is provided at each of the left and right ends of the base plate. The support plates extend in the front-to-back direction, and the outer end of the support frame is fixedly connected to the support plate, that is, the left end face of the vertical plate 3 on the left is fixedly connected to the right end face of the support frame on the left, and the right end face of the vertical plate 3 on the right is fixedly connected to the left end face of the support frame on the right. An adjusting bolt 4 is threadedly connected to the upper side of the support plate in the left-to-right direction. The adjusting bolt is coaxially arranged with the rod to be processed, and the left end face of the rod abuts against the adjusting bolt, thereby facilitating the positioning of the rod.

[0025] The roller mechanism 5 includes a fixing bolt 51 bolted to the support frame, the fixing bolt extends in the front-to-back direction, and one fixing bolt is threadedly connected to the two vertical plates on the same side at the same time, the fixing bolt includes a threaded rod 511 and a smooth rod 512, the two ends of the smooth rod 512 are respectively fixed with the threaded rod 511, the threaded rod and the smooth rod are integrally formed, the threaded rod 511 is threadedly connected to the vertical plate 3, the smooth rod 512 is located between the two vertical plates, the smooth rod is rotatably connected to the roller 52, the roller is located between the two vertical plates of the support frame, the flat pin shaft 6 is located between adjacent rollers 52, and the roller contacts the rod during the bending process.

[0026] During use of this embodiment, according to the length and diameter of the rod to be processed, an appropriate front-to-back distance of the placement channel and the left-to-right distance of the bending channel are set, the vertical plate 3 is welded to the bottom plate 1, and the support plate is welded on the outside of the vertical plate, the bottom end of the support plate is welded to the bottom plate, the adjusting bolt 4 is threadedly connected to the support plate 2, and the bottom plate is bolted to the workbench to complete the assembly of the lower mold, the connecting rod 7 is welded to the fixed plate 8, the flat pin shaft 6 is placed in the groove and the clamping bolt 9 is tightened to fix the flat pin shaft 6 to the connecting rod 7, the fixed plate is fixed to the main shaft of the hydraulic press with bolts, the position of the fixed plate is adjusted to ensure that the front end of the flat pin shaft 6 extends to the front of the roller 52, and the upper mold assembly is completed.

[0027] Adjust the extension distance of the adjusting bolt 4, place the rod in the placement channel, support the rod on the roller 52, press the main shaft of the hydraulic press downward, drive the fixed plate 8 to move downward, thereby moving the flat pin shaft 6 downward, and the flat pin shaft 6 is pressed downward, the rod placed on the roller 52 is deformed, and the roller drives the rod to move, thereby completing the bending operation of the chain link.

[0028] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A chain link bending tool, characterized in that: The invention comprises an upper die mounted on the main shaft of the hydraulic press and a lower die arranged on a workbench, wherein the upper die comprises a connecting rod (7) connected to the main shaft of the hydraulic press in the up-down direction, and a flat pin shaft (6) extending in the front-back direction is mounted on the connecting rod, and the lower die comprises a bottom plate (1) mounted on the workbench, and a plurality of support frames are mounted on the bottom plate, the support frames are located in front of the connecting rod, and roller mechanisms (5) are rotatably connected to the support frames, and a bending channel is formed between adjacent roller mechanisms, and the flat pin shaft (6) is located in the bending channel.

2. A chain link bending tool according to claim 1, characterized in that: The roller mechanism comprises a fixing bolt (51) bolted to a support frame, the fixing bolt comprising a threaded rod (511) and a smooth rod (512), the smooth rod being rotatably connected to a roller (52), and the flat pin shaft (6) being located between adjacent rollers (52).

3. A chain link bending tool according to claim 2, characterized in that: The support frame comprises two vertical plates (3), the vertical plates are fixedly connected to the bottom plate (1), a placement channel is formed between the two vertical plates, the threaded rod (511) is threadedly connected to the vertical plates (3), and the smooth rod (512) is located between the two vertical plates.

4. A chain link bending tool according to claim 1, characterized in that: A support plate (2) is fixedly connected to the bottom plate, an outer end of the support frame is fixedly connected to the support plate, and an adjusting bolt (4) is threadedly connected to the support plate in the left-right direction.

5. The chain link bending tool according to claim 1, characterized in that: The connecting rod is provided with a groove extending in the front-to-back direction, the flat pin shaft (6) is placed in the groove, and the connecting rod is threadedly connected with a clamping bolt (9) extending left and right, the clamping bolt extending to the flat pin shaft (6).

6. A chain link bending tool according to claim 1, characterized in that: The connecting rod is fixed to the main shaft of the oil press via a fixing plate (8), the connecting rod is fixedly connected to the fixing plate, and a plurality of long holes penetrating the fixing plate (8) are provided on the fixing plate (8).

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