Bending machine with high bending precision

Abstract

The utility model provides a bending machine with high bending precision, which comprises a fixed back plate, a working table fixedly connected with the bottom end of the surface of the fixed back plate, auxiliary structures movably arranged on two sides of the top of the working table, a shaping groove arranged in the middle of the surface of the working table, and a connecting rod fixedly connected with the outer end of each auxiliary structure, the outer end of the connecting rod is connected with a tail end plug in a matched mode, a sliding table and a forming structure which are arranged in a matched mode are movably connected to the upper portion of the surface of the fixed back plate, and meanwhile guide grooves are formed in the two sides of the upper surface of the fixed back plate. The effect of driving the whole forming structure to be subjected to lifting adjustment is achieved through the sliding table arranged in a sliding mode, and meanwhile the effect of pushing the whole auxiliary structure to be subjected to sliding adjustment is achieved through the two ends, arranged in a triangular concave mode, of the sliding table; and the effect of conveniently driving the bending cylinder to move and adjust is achieved, and the effect of making contact with an external plate and pressing and bending the external plate is achieved through the bending cylinder.

Description

Technical Field

[0001] The utility model relates to the field of bending machines, and more particularly to a bending machine with high bending precision. Background Art

[0002] A bending machine is a machine that can bend thin plates. For example, in the process of processing aluminum plates, it is necessary to use a bending machine to bend them. When performing bending operations, the bending machine can perform a variety of bending operations on the plates that meet the requirements, and its operation is very simple.

[0003] Existing bending machines mostly use a vertical drive mode, and cooperate with the workbench at the bottom to complete the bending of a fixed shape. Its operation is convenient, fast, stable and reliable, but the problems are:

[0004] When performing arc bending operations on the sheet, due to the material properties of the material itself, when the sheet is pressed down to fit the forming groove of the workbench, it is easy for the sheet to rebound as the force on the sheet disappears, which in turn leads to the bending accuracy and specifications of the sheet not meeting the requirements and the bending effect being poor; at the same time, some bending machines do not have an infinite position structure when they press the sheet down and bend it through a vertical drive method, which makes it easy for the sheet to shift when it is under force, thereby affecting the subsequent bending accuracy.

[0005] Therefore, the utility model proposes a bending machine with high bending precision. Utility Model Content

[0006] The present invention aims to solve the technical problems raised by the above background technology and provide a bending machine with high bending precision, which can solve:

[0007] When performing arc bending operations on the sheet metal, due to the material properties of the material itself, when the sheet metal is pressed down to fit the forming groove of the workbench, it is easy to rebound as the force on the sheet metal disappears, which in turn leads to the bending accuracy and specifications of the sheet metal not meeting the requirements, and the bending effect is poor;

[0008] When the plate is bent downwards by a vertical drive method, there is no infinite position structure, which may cause the plate to shift when subjected to force, thereby affecting the subsequent bending accuracy.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bending machine with high bending precision, comprising a fixed backplate, the bottom end of the surface of the fixed backplate is fixedly connected to a workbench, auxiliary structures are movably provided on both sides of the top of the workbench, a molding groove is provided in the center of the surface of the workbench, the outer end of the auxiliary structure is fixedly connected to a connecting rod, the outer end of the connecting rod is matched with a tail end plug, a matching sliding table and a molding structure are movably connected above the surface of the fixed backplate, and guide grooves are provided on both sides of the upper surface of the fixed backplate, the sliding table is slidably connected to the guide grooves at the same time, the top of the sliding table is fixedly connected to a driving mechanism, the driving mechanism is fixedly connected to the surface of the fixed backplate at the same time, and the sliding table and the molding structure are located directly above the molding groove at the same time.

[0010] A further preferred solution is that the workbench is arranged in a rectangular shape, with rectangular protrusions extending at both ends, and the shaping grooves are arranged in a semicircular shape.

[0011] A further preferred solution is that the sliding platform is rectangular, with protruding sliding blocks provided at the corner positions of the back side corresponding to the guide grooves, and the two ends of the bottom of the sliding platform are triangularly concave, and the forming structure as a whole is vertically movable and embedded in the center position of the bottom of the sliding platform;

[0012] The forming structure includes a first mounting seat and springs at its upper and lower ends and a bending cylinder. The first mounting seat is set as an "L"-shaped convex seat. The spring is set as a metal compression spring and is fixedly connected to the two ends of the back side of the first mounting seat. At the same time, the top of the spring is fixedly connected to the inside of the sliding table. The bending cylinder is set longitudinally as a whole and is located at the bottom position of the front side of the first mounting seat.

[0013] A further preferred solution: the auxiliary structure includes a second mounting seat, a guide bar, a limit fence and a limit plate, the bottom of the inner end of the second mounting seat is arranged in an arc-shaped concave shape, and the outer end of the second mounting seat is centrally provided with an inclined guide platform;

[0014] The guide bar is set to protrude horizontally and is fixedly connected to the longitudinal two side positions of the second mounting seat. The limiting enclosure is a three-sided rectangular protrusion set at the top inner end position of the second mounting seat, and the limiting plate is set longitudinally along the top edge position of the inner end of the limiting enclosure, and the limiting plate as a whole is set in the shape of a triangular folded plate, and is connected to the edge position of the limiting enclosure through a shaft and a torsion spring sleeve. At the same time, the inner end of the limiting plate is set in an arc-shaped protrusion.

[0015] A further preferred solution: the connecting rods are arranged in groups of two, and two groups are provided corresponding to the auxiliary structure, which are fixedly connected to the longitudinal sides of the outer end of the second mounting seat. At the same time, the outer end of the connecting rod passes through the workbench and extends in the form of a rectangular protrusion, and a metal spring sleeve is provided between the outer section of the connecting rod and the tail end plug.

[0016] A further preferred solution is that four groups of sliding plates are fixedly connected to the longitudinal edge positions of the workbench, sliding grooves are provided on the inner sides of the sliding plates corresponding to the guide strips, and the sliding plates are arranged in groups of two corresponding to the guide strips.

[0017] Beneficial effects:

[0018] 1. The utility model achieves the effect of driving the entire forming structure to be raised and lowered by the sliding table arranged for sliding, and at the same time, the effect of pushing the auxiliary structure to be slidably adjusted as a whole is achieved by the triangular concave positions of the sliding table at both ends. The first mounting seat movably embedded in the sliding table is used to facilitate the movable adjustment of the bending cylinder, and the bending cylinder is used to contact the external plate to press it down and bend it, and the spring is used to provide elastic assistance to the bending cylinder as a whole.

[0019] 2. The guide strips are used to ensure the sliding stability of the auxiliary structure as a whole on the workbench surface. The inclined guide platform is used to facilitate the sliding adjustment of the auxiliary structure as the sliding platform descends. The connecting rod is used to provide a sliding guide for the auxiliary structure. The second mounting seat is used to assist the bending cylinder in pressing down and bending the external plate. The limiting enclosure is used to limit the placement of the outer end of the external plate. The limiting plate that is flipped and connected to the limiting enclosure is used to limit the downward pressure on the outer end of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of the overall structure of the utility model;

[0021] Figure 2 This is a front view of the overall structure of the utility model in use;

[0022] Figure 3 This is a schematic diagram of the connection of the molding structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the auxiliary structure connection of the utility model;

[0024] Figure 5 For the utility model Figure 4 A magnified view of the structure in the middle.

[0025] Figure 1-5 Middle: 1. Fixed back plate; 2. Workbench; 3. Auxiliary structure; 4. Forming groove; 5. Connecting rod; 6. Tail end plug; 7. Guide groove; 8. Driving mechanism; 9. Sliding table; 10. Forming structure; 11. First mounting seat; 12. Bending cylinder; 13. Spring; 14. Second mounting seat; 15. Guide strip; 16. Guide table; 17. Limit enclosure; 18. Limit plate. DETAILED DESCRIPTION

[0026] The following is a combination of the appended examples of the present invention Figure 1-Figure 5 , clearly and completely describe the technical solutions in the embodiments of the present utility model.

[0027] See also Figure 1-5 In the embodiment of the utility model, a bending machine with high bending precision includes a fixed backboard 1, the bottom end of the surface of the fixed backboard 1 is fixedly connected to a workbench 2, auxiliary structures 3 are movably provided on both sides of the top of the workbench 2, a forming groove 4 is provided at the center of the surface of the workbench 2, the outer end of the auxiliary structure 3 is fixedly connected to a connecting rod 5, and the outer end of the connecting rod 5 is matched with a tail end plug 6, and a matching sliding table 9 and a forming structure 10 are movably connected above the surface of the fixed backboard 1. At the same time, guide grooves 7 are opened on both sides of the upper surface of the fixed backboard 1, and the sliding table 9 is slidably connected to the guide grooves 7 at the same time. The top of the sliding table 9 is fixedly connected to a driving mechanism 8, and the driving mechanism 8 is also connected to the top of the sliding table 9. When the plate is bent, the plate is fixedly connected to the surface of the fixed back plate 1, and the sliding table 9 and the forming structure 10 are located directly above the forming groove 4. When the device is performing a bending operation, the forming structure 10 is used to complete the preliminary bending operation first. After that, the lifting and lowering of the forming structure 10 and the sliding table 9 can simultaneously drive the two sets of auxiliary structures 3 to perform auxiliary bending operations on the plate from both sides to avoid rebound of the plate, thereby ensuring the arc bending accuracy of the plate. At the same time, before the device performs a bending operation on the plate, the limiting enclosure 17 and the limiting plate 18 can be used to pre-limit the plate to avoid displacement of the plate during the bending process without affecting the subsequent bending operation of the plate.

[0028] In the embodiment of the present utility model, the workbench 2 is set as a rectangular table, and its two ends are extended in the form of rectangular protrusions. The shaping groove 4 is opened in a semicircular shape. The sliding table 9 is set in a rectangular shape. The back end corner position corresponds to the guide groove 7 and is provided with a protruding sliding block. The two ends of the bottom of the sliding table 9 are triangularly concave, and the molding structure 10 is vertically movable as a whole and embedded in the center of the bottom of the sliding table 9. The molding structure 10 includes a first mounting seat 11 and springs 13 at the upper and lower ends thereof and a bending cylinder 12. The first mounting seat 11 is set in an "L"-shaped convex seat. The spring 13 is set as a metal compression spring, which is fixedly connected to the two ends of the back of the first mounting seat 11. At the same time, the spring The top of the spring 13 is fixedly connected to the inside of the sliding table 9. The bending cylinder 12 is arranged longitudinally as a whole and is located at the bottom front position of the first mounting seat 11. The sliding table 9 is slidingly arranged to achieve the effect of driving the overall lifting and lowering adjustment of the forming structure 10. At the same time, the two end positions of the sliding table 9 are triangularly concave to achieve the effect of pushing the auxiliary structure 3 to slide and adjust as a whole. The first mounting seat 11 movably embedded in the sliding table 9 is used to facilitate the movable adjustment of the bending cylinder 12. The bending cylinder 12 is used to contact the external plate to press it down and bend it. The spring 13 provides elastic assistance to the bending cylinder 12 as a whole.

[0029] The auxiliary structure 3 includes a second mounting seat 14, a guide bar 15, a limiting fence 17 and a limiting plate 18. The bottom of the inner end of the second mounting seat 14 is arc-shaped and concave, and the outer end of the second mounting seat 14 is centrally provided with an inclined guide platform 16. The guide bar 15 is laterally protruding and fixedly connected to the longitudinal two side positions of the second mounting seat 14. The limiting fence 17 is rectangular and protrudes on three sides at the top inner end position of the second mounting seat 14, and the limiting plate 18 is longitudinally arranged along the inner top edge position of the limiting fence 17, and the limiting plate 18 is a triangular folded plate as a whole. It is connected to the edge position of the limiting fence 17 by a shaft and a torsion spring sleeve. At the same time, the inner end of the limiting plate 18 is arc-shaped and convex. The connecting rods 5 are grouped in twos, and two groups are provided corresponding to the auxiliary structure 3, which are fixedly connected to the longitudinal two side positions of the outer end of the second mounting seat 14. At the same time, the outer end of the connecting rod 5 passes through the workbench 2 and is rectangular and convex. The outer end of the connecting rod 5 is provided with a metal spring sleeve arranged between the outer section of the connecting rod 5 and the tail end plug 6. Four sets of sliding plates are fixedly connected to the longitudinal edge positions of the workbench 2. The inner sides of the sliding plates are provided with sliding grooves corresponding to the guide bars 15, and the sliding plates are arranged in groups of two corresponding to the guide bars 15. The guide bars 15 are used to ensure the sliding stability of the auxiliary structure 3 on the surface of the workbench 2. The inclined guide platform 16 is used to facilitate the sliding adjustment of the auxiliary structure 3 as the sliding platform 9 descends. The connecting rod 5 is used to provide a sliding guide for the auxiliary structure 3. The second mounting seat 14 is used to achieve the effect of the auxiliary bending cylinder 12 pressing down the external plate and bending it. The limiting enclosure 17 is used to achieve the effect of placing and limiting the outer end position of the external plate. The limiting plate 18 flipped and connected to the limiting enclosure 17 is used to achieve the effect of pressing down and limiting the outer end position of the plate.

[0030] When bending the external plate, the user first places the external plate on the two sets of auxiliary structures 3, so that the two end positions of the plate are placed in the limiting enclosure 17 at the inner end position of the second mounting seat 14, and the limiting enclosure 17 cooperates with the flip-connected limiting plate 18 to limit the two end positions of the plate before bending. Then the driving mechanism 8 starts to drive the sliding table 9 to slide downward along the guide groove 7, and at the same time drives the forming structure 10 to descend. The bending cylinder 12 in the forming structure 10 first contacts the surface of the plate located on the second mounting seat 14, so that the plate is concavely embedded in the shaping groove 4 to complete the preliminary arc bending operation, and the two end positions of the sliding table 9 are simultaneously embedded in the guide table 16. As the sliding table 9 descends, the two sets of auxiliary structures 3 are pushed inward at the same time, and the outer end position of the plate is bent upward. As the auxiliary structure 3 moves inward, the inner end position of the second mounting seat 14 contacts the plate, so that the plate fits the surface of the bending cylinder 12. At this time, the two ends of the plate are subjected to force and gradually bend into an arc along the surface of the bending cylinder 12.

[0031] During the bending process, since the limit plate 18 and the limit enclosure 17 are flipped together, when the plate is subjected to force in the center position, the two ends of the plate will tilt upward, pushing the limit plate 18 to flip upward and open, thereby avoiding the limit plate 18 affecting the downward pressing and bending operation of the plate. At the same time, during the inward and outward movement of the auxiliary structure 3, the guide bar 15 slides simultaneously along the sliding plates on both sides of the longitudinal direction of the workbench 2 to ensure the movement and adjustment stability of the auxiliary structure 3.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A bending machine with high bending accuracy, characterized by: The invention comprises a fixed back plate (1), the bottom end of the surface of the fixed back plate (1) is fixedly connected to a workbench (2), auxiliary structures (3) are movably arranged on both sides of the top of the workbench (2), a shaping groove (4) is arranged at the center of the surface of the workbench (2), the outer end of the auxiliary structure (3) is fixedly connected to a connecting rod (5), the outer end of the connecting rod (5) is matched with a tail end plug (6), the upper surface of the fixed back plate (1) is movably connected to a matching sliding table (9) and a shaping structure (10), and guide grooves (7) are provided on both sides of the upper surface of the fixed back plate (1), the sliding table (9) is slidably connected to the guide grooves (7), the top of the sliding table (9) is fixedly connected to a driving mechanism (8), the driving mechanism (8) is fixedly connected to the surface of the fixed back plate (1), and the sliding table (9) and the shaping structure (10) are simultaneously located directly above the shaping groove (4).

2. A bending machine with high bending accuracy according to claim 1, characterized in that: The workbench (2) is arranged in the shape of a rectangular table, with rectangular protrusions extending at both ends, and the shaping groove (4) is arranged in a semicircular shape.

3. A bending machine with high bending accuracy according to claim 1, characterized in that: The sliding platform (9) is arranged in a rectangular shape, and a protruding sliding block is arranged at the corner position of the back end corresponding to the guide groove (7), and the two ends of the bottom of the sliding platform (9) are arranged in a triangular shape, and the molding structure (10) is vertically movable as a whole and embedded in the center position of the bottom of the sliding platform (9); The forming structure (10) comprises a first mounting seat (11), a spring (13) at the upper and lower ends thereof, and a bending cylinder (12); the first mounting seat (11) is arranged in an "L"-shaped convex seat; the spring (13) is arranged as a metal compression spring and is fixedly connected to the two ends of the back side of the first mounting seat (11); the top of the spring (13) is fixedly connected to the inside of the sliding platform (9); the bending cylinder (12) is arranged longitudinally as a whole and is located at the front bottom position of the first mounting seat (11).

4. A bending machine with high bending accuracy according to claim 1, characterized in that: The auxiliary structure (3) comprises a second mounting seat (14), a guide bar (15), a limiting enclosure (17) and a limiting plate (18); the bottom of the inner end of the second mounting seat (14) is arranged in an arc-shaped concave shape, and a guide platform (16) in an inclined state is arranged at the center of the outer end of the second mounting seat (14); The guide strip (15) is arranged to protrude transversely and is fixedly connected to the longitudinal two side positions of the second mounting seat (14); the limiting enclosure (17) is arranged to protrude in a three-sided rectangular shape at the top inner end position of the second mounting seat (14); the limiting plate (18) is arranged longitudinally along the inner end top edge position of the limiting enclosure (17); the limiting plate (18) is arranged as a triangular folded plate as a whole and is connected to the edge position of the limiting enclosure (17) by a shaft body and a torsion spring sleeve; and the inner end of the limiting plate (18) is arranged to be an arc-shaped protrusion.

5. A bending machine with high bending accuracy according to claim 1, characterized in that: The connecting rods (5) are arranged in groups of two, and two groups are provided corresponding to the auxiliary structure (3), and are fixedly connected to the longitudinal sides of the outer end of the second mounting seat (14). At the same time, the outer end of the connecting rod (5) passes through the outer end of the workbench (2) and extends in the form of a rectangular protrusion, and a metal spring sleeve is provided between the outer section of the connecting rod (5) and the tail end plug (6).

6. A bending machine with high bending accuracy according to claim 2, characterized in that: Four sets of sliding plates are fixedly connected to the longitudinal edge positions of both sides of the workbench (2), and sliding grooves are provided on the inner sides of the sliding plates corresponding to the guide strips (15), and the sliding plates are arranged in groups of two corresponding to the guide strips (15).

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