A bending die for processing different bending workpieces

Abstract

The utility model discloses a kind of bending moulds for different bending workpiece processing, including platen, rotating and inserting outer rotating sleeve on platen, rotatable inner rotating shaft is inserted in the inside of outer rotating sleeve, the top end of outer rotating sleeve is fixedly connected with the horizontally arranged link rod one, the other end of link rod one is fixedly connected with extrusion column one, the top end of inner rotating shaft is fixedly connected with link rod two, the other end of link rod two is fixedly connected with extrusion column two, the top of platen is detachably installed with two limit posts, the limit post is transversely linearly arranged, the top of platen is fixedly connected with two blocking columns, the blocking column is located between two limit posts and outer rotating sleeve.The utility model in the present application, by setting the limit post of adjustable spacing between each other, adjusting bending part, the same bending machine needs to process different length pipes, adjustable limit post is through "spacing adapts pipe size", without replacing special limit piece, general support can be realized.

Description

Technical Field

[0001] This utility model relates to the field of bending die technology, specifically a bending die for processing different bending workpieces. Background Technology

[0002] Bending dies for workpiece processing are specialized tooling fixtures used to shape sheet metal (such as carbon steel, stainless steel, and aluminum alloy) by applying pressure from a bending machine to achieve a predetermined angle and shape. They are the core tools in sheet metal bending processing. Essentially, they involve extruding and bending tubular materials into three-dimensional workpieces with specific folds (such as right angles, arcs, or multiple folds), and are widely used in equipment housings, brackets, cabinets, automotive sheet metal, and other fields.

[0003] When using a traditional bending machine to bend pipes, different pipe sizes require different bending radii (e.g., one workpiece requires a small radius bend of R=5mm, while another workpiece requires a large radius bend of R=10mm).

[0004] If the support is fixed (e.g., the spacing between the limit posts remains unchanged), when bending at a small radius, the pipe may be unrestrained at the bending point due to "supports being too far away," resulting in inner arc wrinkles. When bending at a large radius, the outer arc of the pipe may be squeezed due to "supports being too close," causing the outer arc to crack. Furthermore, the bending processing requirements cannot be met, leading to product defects. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a bending die for processing different bending workpieces, thus solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a bending die for processing different bending workpieces, comprising a table, an outer rotating sleeve rotatably inserted on the table, an inner rotating shaft inserted inside the outer rotating sleeve, a horizontally arranged connecting rod 1 fixedly connected to the top of the outer rotating sleeve, an extrusion column 1 fixedly connected to the other end of the connecting rod 1, a second connecting rod 2 fixedly connected to the top of the inner rotating shaft, an extrusion column 2 fixedly connected to the other end of the connecting rod 2, two limiting posts detachably installed on the top of the table, the limiting posts being arranged horizontally linearly, and two stop posts fixedly connected to the top of the table, the stop posts being located between the two limiting posts and the outer rotating sleeve.

[0009] Preferably, the bottom of the limiting post is fixedly connected to a plug shaft, and the top of the platform has multiple linearly distributed and symmetrically arranged screw holes, with the plug shaft threaded into the screw holes.

[0010] Preferably, a gear one is fixedly connected to the lower end of the outer rotating sleeve, a gear two is fixedly connected to the lower end of the inner rotating shaft, and a frame capable of lateral reciprocating linear displacement is provided below the platform. A rack two and a rack one are fixedly connected to the opposite side walls of the frame. The rack one meshes with the gear one, and the rack two meshes with the gear two.

[0011] Preferably, an electric push rod for driving the frame displacement is provided below the platform, and the driving end of the electric push rod is fixedly connected to the end of the frame.

[0012] Preferably, support rods are fixedly connected to the four corners of the bottom of the platform, and the lower ends of the support rods are all fixedly connected to the base plate, and the electric push rod is fixedly installed on the base plate.

[0013] Preferably, the lower end of the inner rotating shaft is rotatably inserted into the top of the base plate.

[0014] (III) Beneficial Effects

[0015] This utility model provides a bending die for processing different bending workpieces, which has the following beneficial effects:

[0016] In this invention, a long strip of tubing is placed between a limiting post and a stop post. By driving the inner rotating shaft and the outer rotating sleeve to rotate synchronously in opposite directions, the first extrusion post and the second extrusion post rotate simultaneously in opposite directions, extruding the end of the tubing to achieve bending. By setting limiting posts with adjustable spacing between them, the bending part can be adjusted. If the same bending machine needs to process tubing of different lengths, the adjustable limiting posts can achieve universal support by "adapting the spacing to the tubing size", without the need to replace special limiting parts. Furthermore, it solves the problems in the prior art where "when bending with a small radius, the tubing may be unrestrained at the bending part due to "support being too far away", resulting in inner arc wrinkles; and when bending with a large radius, the outer arc of the tubing may be squeezed due to "support being too close", resulting in cracking of the outer arc." Attached Figure Description

[0017] Figure 1 This is a left view of the structure of a bending die for processing different bending workpieces proposed in this utility model;

[0018] Figure 2 This utility model presents a structural diagram showing the disassembly state of a limiting post in a bending die for processing different bending workpieces.

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a right-side structural view of a bending die for processing different bending workpieces proposed in this utility model;

[0021] Figure 5 This is a cross-sectional view of a bending die for processing different bending workpieces proposed in this utility model.

[0022] In the diagram: 1. Platform; 101. Screw hole; 2. Inner rotating shaft; 3. Outer rotating sleeve; 4. Gear 1; 5. Gear 2; 6. Frame; 7. Rack 2; 8. Rack 1; 9. Connecting rod 2; 10. Extrusion column 2; 11. Connecting rod 1; 12. Extrusion column 1; 13. Insert shaft; 14. Electric push rod; 15. Base plate; 16. Support rod; 17. Stop post; 18. Limit post. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a bending die for processing different bending workpieces, including a table 1, an outer rotating sleeve 3 rotatably inserted on the table 1, an inner rotating shaft 2 rotatably inserted inside the outer rotating sleeve 3, a horizontally arranged connecting rod 11 fixedly connected to the top of the outer rotating sleeve 3, an extrusion column 12 fixedly connected to the other end of the connecting rod 11, a connecting rod 9 fixedly connected to the top of the inner rotating shaft 2, an extrusion column 10 fixedly connected to the other end of the connecting rod 9, two limiting columns 18 detachably installed on the top of the table 1, the limiting columns 18 being arranged horizontally linearly, and two stop columns 17 fixedly connected to the top of the table 1, the stop columns 17 being located between the two limiting columns 18 and the outer rotating sleeve 3; as can be seen in the figure, the height of the connecting rod 11 is lower than that of the connecting rod 9, and the height of the connecting rod 11 is higher than that of the limiting columns 18 and the stop columns 17, thus avoiding obstruction and influence on the connecting rod 9 and the connecting rods 11 and 12 during rotation.

[0025] By placing a long strip of tubing between the limiting post 18 and the stop post 17, and driving the inner rotating shaft 2 and the outer rotating sleeve 3 to rotate synchronously in opposite directions, the extrusion post 12 and the extrusion post 2 10 rotate simultaneously in opposite directions, extruding the end of the tubing to achieve the purpose of bending. By setting the adjustable limiting post 18, the distance between the two limiting posts 18 can be changed, and the bending part can be adjusted. The same bending machine needs to process tubing of different lengths, i.e., different bending workpieces referred to in the title of this application. The adjustable limiting posts 18 adapt to the tubing size by the distance between them, and universal support can be achieved without replacing special limiting parts.

[0026] Reference Figure 3The bottom of the limiting post 18 is fixedly connected to the insertion shaft 13, and the top of the platform 1 has multiple linearly distributed and symmetrically arranged screw holes 101, and the insertion shaft 13 is threaded into the screw holes 101.

[0027] The insertion shaft 13 and the screw hole 101 are connected by a thread, which achieves the purpose of locking the limiting post 18. On the one hand, the limiting post 18 and the stop post 17 achieve the purpose of limiting the strip tube. On the other hand, by adjusting the distance between the two limiting posts 18, the tube can be bent into the required size and shape.

[0028] Reference Figure 5 The lower end of the outer rotating sleeve 3 is fixedly connected to a gear 4, and the lower end of the inner rotating shaft 2 is fixedly connected to a gear 5. A frame 6 that can reciprocate laterally is provided below the platform 1. A rack 7 and a rack 8 are fixedly connected to the opposite side walls of the frame 6. The rack 8 meshes with the gear 4, and the rack 7 meshes with the gear 5.

[0029] Reference Figure 5 An electric push rod 14 for driving the frame 6 to move is provided below the platform 1, and the driving end of the electric push rod 14 is fixedly connected to the end of the frame 6.

[0030] Start the electric push rod 14, which drives the frame 6 to move linearly. The rack 8 drives the gear 4 to rotate counterclockwise, which causes the connecting rod 11 and the extrusion column 12 at the upper end of the outer rotating sleeve 3 to rotate counterclockwise. The rack 7 drives the gear 5 to rotate clockwise, which causes the connecting rod 9 and the extrusion column 10 at the end of the inner rotating shaft 2 to rotate clockwise. The extrusion column 10 and the extrusion column 12 can extrude and form the two ends of the tube, thus completing the processing of the workpiece.

[0031] Gear 14 and Gear 25 have the same specifications, and rack 18 and rack 27 have the same specifications, thus ensuring that extrusion column 210 and extrusion column 12 rotate synchronously, that is, ensuring that the length of the path rotated is the same.

[0032] The electric linear actuator 14 is an electromechanical integrated actuator that converts electrical energy into linear reciprocating motion. Through a built-in motor drive transmission structure, it realizes the extension and retraction of the actuator. It is widely used in scenarios that require precise control of linear displacement, thrust, or tension, and is an existing product.

[0033] Reference Figure 1 Support rods 16 are fixedly connected to the four corners of the bottom of the platform 1. The bottom of the support rods 16 are fixedly connected to the base plate 15. The electric push rod 14 is fixedly installed on the base plate 15.

[0034] The support rods 16 distributed at the four corners can evenly distribute the load weight above the platform 1 to the four stress points of the base plate 15, preventing the platform 1 from "collapse in the middle" or "tilting at the edges" due to concentrated stress.

[0035] The operating accuracy of the electric linear actuator 14 depends on the flatness and positional accuracy of the mounting surface. The base plate 15 is typically machined using high-precision milling to provide a flat and uniform mounting surface for the electric linear actuator 14.

[0036] Reference Figure 1 The lower end of the inner rotating shaft 2 is rotatably inserted into the top of the base plate 15.

[0037] The inner rotating shaft 2 is "rotatably inserted" at the top of the base plate 15 to provide stable and precise vertical support for the inner rotating shaft 2;

[0038] Furthermore, a bearing is added to the base plate 15, and the lower end of the inner rotating shaft 2 is inserted into the inner ring of the bearing, which is an optimization and upgrade of the "basic vertical support". Through the synergy of "insertion structure to ensure vertical stability" and "bearing components to reduce rotational friction", the problem of vertical offset and swaying of the rotating shaft is solved, and the hidden danger of rotation jamming is completely eliminated, forming a dual guarantee of "reliable support and smooth rotation".

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bending die for processing different bending workpieces, characterized in that: Includes a platform (1) and an outer rotating sleeve (3) rotatably inserted on the platform (1). The outer rotating sleeve (3) has a rotatable inner rotating shaft (2) inserted inside. The top of the outer rotating sleeve (3) is fixedly connected to a horizontally arranged connecting rod (11). The other end of the connecting rod (11) is fixedly connected to a pressing column (12). The top of the inner rotating shaft (2) is fixedly connected to a connecting rod (9). The other end of the connecting rod (9) is fixedly connected to a pressing column (10). The top of the platform (1) is detachably installed with two limiting columns (18). The limiting columns (18) are arranged horizontally and linearly. The top of the platform (1) is fixedly connected with two stop columns (17). The stop columns (17) are located between the two limiting columns (18) and the outer rotating sleeve (3).

2. A bending die for processing different bending workpieces according to claim 1, characterized in that: The bottom of the limiting post (18) is fixedly connected to the insert shaft (13), and the top of the platform (1) is provided with multiple linearly distributed and symmetrically arranged screw holes (101), and the insert shaft (13) is threaded into the screw hole (101).

3. A bending die for processing different bending workpieces according to claim 1, characterized in that: The lower end of the outer rotating sleeve (3) is fixedly connected to a gear 1 (4), and the lower end of the inner rotating shaft (2) is fixedly connected to a gear 2 (5). A frame (6) capable of horizontal reciprocating linear displacement is provided below the platform (1). On the opposite side walls of the frame (6), rack 2 (7) and rack 1 (8) are fixedly connected. Rack 1 (8) meshes with gear 1 (4), and rack 2 (7) meshes with gear 2 (5).

4. A bending die for processing different bending workpieces according to claim 1, characterized in that: An electric push rod (14) for driving the frame (6) displacement is provided below the platform (1), and the driving end of the electric push rod (14) is fixedly connected to the end of the frame (6).

5. A bending die for processing different bending workpieces according to claim 4, characterized in that: The platform (1) has support rods (16) fixedly connected at the four corners of its bottom. The bottom ends of the support rods (16) are fixedly connected to the base plate (15). The electric push rod (14) is fixedly installed on the base plate (15).

6. A bending die for processing different bending workpieces according to claim 5, characterized in that: The lower end of the inner rotating shaft (2) is rotatably inserted into the top of the base plate (15).

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