Traceless bidirectional bending machine

Abstract

The utility model belongs to the field of bending equipment, and provides a traceless bidirectional bending machine which comprises a mounting plate, a central shaft connected to the mounting plate, a gear rotationally connected to the central shaft, a rack meshed with the gear and a driving mechanism driving the rack to move. The center shaft protrudes out of the surface of the gear, a through groove which is perpendicular to the moving direction of the rack and used for containing a sample piece is formed in the center of the center shaft, two pressing blocks are arranged on the gear, the two pressing blocks are symmetrical along the axis of the center shaft and located on the two sides of the sample piece respectively, and the pressing blocks interfere with the sample piece outside the center shaft under rotation of the gear and bend the sample piece. According to the traceless two-way bending machine, the gear drives the pressing block to rotate, the part, outside the center shaft, of the sample piece is bent, the purpose of simultaneous two-way bending is achieved, the rapid and stable two-way bending action is achieved, and the sample piece bending efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of bending equipment, in particular to a traceless two-way bending machine. Background Art

[0002] The existing two-way bending machine technology faces multiple challenges. First of all, the structures of these machines are complex and difficult to operate, posing great challenges to users. They usually adopt complex mechanical structures and control systems, and require experienced operators to operate and adjust. This complexity not only increases the maintenance cost of the machines, but also limits the operating flexibility of the operators.

[0003] Another problem is the low bending efficiency. Traditional two-way bending machines need to adjust and flip the workpiece multiple times, resulting in a long processing cycle and affecting the production efficiency. This low efficiency will not only prolong the processing cycle, but may also cause production delays, affecting the overall production plan of the enterprise.

[0004] In addition, the existing constant-pressure bending method is usually point contact, which means that indentations usually appear at the bending places of the samples. This not only does not meet the process requirements, but also affects the product quality. Summary of the Utility Model

[0005] A traceless two-way bending machine of the utility model is used to solve the related technical problems in the background art.

[0006] The technical solution provided by the utility model is as follows: a traceless two-way bending machine, comprising: a mounting plate, a central shaft connected to the mounting plate, a gear rotatably connected to the central shaft, a rack meshing with the gear, and a driving mechanism for driving the rack to move; the central shaft protrudes outside the surface of the gear, and a through groove perpendicular to the movement direction of the rack and for placing a sample is provided at the central position of the central shaft. Two pressing blocks are provided on the gear. The two pressing blocks are symmetric about the axis of the central shaft and are respectively on both sides of the sample. Under the rotation of the gear, the pressing blocks interfere with the sample outside the central shaft and bend it.

[0007] In one embodiment, the meshing position of the gear and the rack is limited by a first L-shaped limiting plate. The first L-shaped limiting member is limited and connected to the mounting plate, and one of the plates is outside the surfaces of the gear and the rack.

[0008] In one embodiment, the gear is limited by a second L-shaped limiting member on the opposite side of the rack; the second L-shaped limiting member is connected to the mounting plate, and one of the plates is outside the surface of the gear.

[0009] In one embodiment, the centers of the gear and the central shaft are on the same axis.

[0010] In one embodiment, the pressing block is of a square structure, and the four corners thereof are all arc-shaped.

[0011] In one embodiment, limit blocks are respectively arranged at both ends of the sample piece, and the limit blocks are connected to the gear.

[0012] In one embodiment, the corners of the through groove are all arc-shaped.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The traceless two-way bending machine of the present utility model drives the pressing block to rotate through the gear, bends the part of the sample piece outside the central axis, achieves the purpose of two-way bending at the same time, realizes fast and stable two-way bending actions, and improves the bending efficiency of the sample piece.

[0015] The traceless two-way bending machine of the present utility model sets the pressing block into a square structure, sets its four corners as arc-shaped, and sets the corners of the through groove as arc-shaped. When bending the sample piece, it achieves the purpose of surface contact and surface interference with the sample piece, and realizes the effect of traceless bending. Description of the Drawings

[0016] Figure 1 is a schematic three-dimensional structure diagram of the initial state of the traceless two-way bending machine of the present utility model;

[0017] Figure 2 is a schematic three-dimensional structure diagram of the bending state of the traceless two-way bending machine of the present utility model;

[0018] Figure 3 is the front view of the initial state of the traceless two-way bending machine of the present utility model.

[0019] The reference numerals are as follows: 1, mounting plate; 2, central axis; 3, gear; 4, rack; 5, driving mechanism; 6, through groove; 7, pressing block; 8, first L-shaped limit plate; 9, second L-shaped limiting member; 10, limit block; 11, sample piece. Specific Embodiments

[0020] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those of ordinary skill in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0021] Such as Figures 1-3As shown in the figure, the utility model is a seamless two-way bending machine, including: a mounting plate 1, a central shaft 2, a gear 3, a rack 4, a driving mechanism 5, and a pressing block 7; one end of the central shaft 2 is fixedly connected to the mounting plate 1, the gear 3 is movably sleeved outside the central shaft 2, and the other end of the central shaft 2 passes through the gear 3 and protrudes outside the gear 3; the driving mechanism 5 is connected to the mounting plate 1, the driving mechanism 5 is connected to the rack 4 and can drive the rack 4 to move, the rack 4 is engaged with the gear 3, and the rotation of the gear 3 is driven by the movement of the rack 4; a through groove 6 is opened inward on the end surface of the central shaft 2 protruding outside the gear 3, and the plate-shaped sample 11 is stuck in the through groove 6; two pressing blocks 7 are connected to the gear 3, symmetrically arranged along the axis of the central shaft 2 and on both sides of the sample 11; as Figures 1-2 shown, when the driving mechanism 5 drives the rack 4 to move downward, the gear 3 rotates clockwise around the central shaft 2, the pressing block 7 rotates with the gear 3, interferes with the part of the sample 11 outside the central shaft 2, and bends the sample 11; by driving the pressing block 7 to rotate through the gear 3, the part of the sample 11 outside the central shaft 2 is bent, achieving the purpose of simultaneous two-way bending, realizing fast and stable two-way bending action, and improving the bending efficiency of the sample 11. Specifically:

[0022] A through groove 6 is opened on the central shaft 2 of this embodiment to place the sample 11, which is used to prevent the middle part of the sample 11 from deforming and ensure the bending of both sides of the sample 11.

[0023] The driving mechanism 5 of this embodiment is a telescopic cylinder.

[0024] In this embodiment, as Figures 1-3 shown, in the initial state, the through groove 6 is arranged horizontally, the sample 11 is placed horizontally in the through groove 6, the left pressing block 7 is below the sample 11, and the right pressing block 7 is above the sample 11; when the driving mechanism 5 moves the rack 4 downward, the gear 3 rotates clockwise, the right pressing block 7 bends the right part of the sample 11 downward, and the left pressing block 7 bends the left part of the sample 11 upward, realizing the two-way bending of the sample 11.

[0025] In one implementation, the left pressing block 7 can be above the sample 11, and the right pressing block 7 can be below the sample 11; when the driving mechanism 5 moves the gear 3 upward, the gear 3 rotates counterclockwise, the right pressing block 7 bends the right part of the sample 11 upward, and the left pressing block 7 bends the left part of the sample 11 downward, and the two-way bending of the sample 11 can also be realized.

[0026] Only part of the tooth structure of the gear 3 in this embodiment is designed according to the bending angle of the sample 11 for its meshing stroke with the rack 4; in this embodiment, the rack 4 drives the gear 3 to rotate from the initial state, and when the gear 3 rotates to the maximum stroke, the pressing block 7 bends the sample 11 into the bending angle required by the process.

[0027] Furthermore, a first L-shaped limit plate is connected to the mounting plate 1, and at the meshing point between the gear 3 and the rack 4, it limits the side of the rack 4, the surface of the rack 4 and the surface of the gear 3, so as to guide and limit the rack 4 and prevent the gear 3 and the rack 4 from shifting, thereby achieving the purpose of stabilizing the meshing between the gear 3 and the rack 4 and realizing the stability of the bending action.

[0028] Furthermore, a second L-shaped limiting plate is connected to the mounting plate 1 on the side opposite to the rack 4, which limits the gear 3 on the side and surface of the gear 3 to prevent the gear 3 from deflecting and ensure stable bending.

[0029] In this embodiment, the center of the gear 3 and the center of the central shaft 2 are on the same axis, which improves the rotation stability of the gear 3 and the bending accuracy.

[0030] In this embodiment, a limiting block 10 is connected to the mounting plate 1. The limiting block 10 is on the left and right sides of the sample 11, with a slight gap between the limiting block 10 and the end of the sample 11 so as not to interfere with the bending movement of the sample 11. The limiting block 10 is used to limit the sample 11 to prevent the sample 11 from deviating to the left or right when being bent by the pressing block 7, thereby ensuring the bending accuracy.

[0031] In this embodiment, the pressing block 7 is a square structure, and the four corners of the pressing block 7 are all arc-shaped; the corners of the through groove 6 are all arc-shaped; when the sample 11 is bent, the purpose of surface contact and surface interference with the sample 11 is achieved, and the effect of seamless bending is realized.

[0032] Working principle: Place the sample 11 in the through groove 6. When the driving mechanism 5 drives the rack 4 to move downward, the gear 3 moves clockwise around the central axis 2, and the pressure block 7 rotates with the gear 3, interfering with the part of the sample 11 outside the central axis 2, and bending the sample 11; the pressure block 7 is driven by the gear 3 to rotate, and the part of the sample 11 outside the central axis 2 is bent, thereby achieving the purpose of simultaneous two-way bending, realizing fast and stable two-way bending action, and improving the bending efficiency of the sample 11.

[0033] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0034] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A seamless bidirectional bending machine, characterized in that: include: A mounting plate (1), a central shaft (2) connected to the mounting plate (1), a gear (3) rotatably connected to the central shaft (2), a rack (4) meshing with the gear (3), and a driving mechanism (5) for driving the rack (4) to move; the central shaft (2) protrudes outside the surface of the gear (3), and a through groove (6) perpendicular to the movement direction of the rack (4) and used to place a sample (11) is provided at the center position of the central shaft (2); two pressing blocks (7) are provided on the gear (3); the two pressing blocks (7) are symmetrical along the axis of the central shaft (2) and are respectively located on both sides of the sample (11); and when the gear (3) rotates, the pressing blocks (7) interfere with the sample (11) outside the central shaft (2) and bend it.

2. A seamless bidirectional bending machine as claimed in claim 1, characterized in that: The meshing point between the gear (3) and the rack (4) is limited by a first L-shaped limit plate (8), the first L-shaped limit plate (8) being limit-connected to the mounting plate (1), and one of the plates being outside the surface of the gear (3) and the rack (4).

3. A seamless bidirectional bending machine as claimed in claim 1, characterized in that: The gear (3) is limited by a second L-shaped limiter (9) on the side opposite to the rack (4); the second L-shaped limiter (9) is connected to the mounting plate (1), and one of the plates is outside the surface of the gear (3).

4. A seamless bidirectional bending machine as claimed in claim 1, characterized in that: The gear (3) and the center of the central shaft (2) are on the same axis.

5. A seamless bidirectional bending machine as claimed in claim 1, characterized in that: The pressing block (7) is a square structure, and its four corners are all arc-shaped.

6. A seamless bidirectional bending machine as claimed in claim 1, characterized in that: Limit blocks (10) are respectively provided at both ends of the sample (11), and the limit blocks (10) are connected to the gear (3).

7. A seamless bidirectional bending machine as claimed in claim 1, characterized in that: The corners of the through groove (6) are all arc-shaped.

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