Adjusting and positioning device for bending lower die

Abstract

The utility model discloses a bending lower die adjusting and positioning device which is used for limiting the position of a lower die. Comprising a lower die bearing seat, at least one side fixing block adjustably arranged in the axis direction of the lower die bearing seat, and supporting plates detachably arranged at the two ends of the side fixing block. The side fixing blocks are arranged at the end of the lower die, and at least one side fixing block abuts against the end of the lower die. The supporting plates are located on the two sides of the lower die. The side fixing blocks and the supporting plates limit the position of the lower die in the length direction and the width direction of the lower die. The lower die has the advantages that the position of the lower die is limited in the length direction and the width direction of the lower die through the side fixing blocks and the supporting plates, deviation caused by repeated slight jumping due to the fact that the lower die is extruded by products in the machining process is effectively reduced, the accuracy of the bending machining position is guaranteed, and the yield is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical manufacturing, and in particular relates to a bending lower die adjusting and positioning device. Background Art

[0002] A bending machine is a machine that can bend thin plates. It includes a bracket, a workbench, a clamping plate and a back gauge. The workbench is placed on the bracket. The workbench consists of a base and a pressure plate. The base is connected to the clamping plate through a hinge. Bending machine products are widely used in electromechanical, sheet metal, light industry, aviation, shipbuilding, instrumentation, electrical appliances, stainless steel products, steel structure buildings and metallurgy industries. They are used to bend various steel plates, stainless steel, copper plates, aluminum plates and non-metallic material plates. It can bend products into V-shape, arc, circle or right angle, etc. It can also be designed and processed into special shape molds according to requirements.

[0003] The bending force of the bending machine is completed by the oil cylinder driving the tool holder to drive the bending mold. The bending mold is divided into an upper mold and a lower mold. The upper mold is installed on the tool holder and moves up and down with the tool holder, while the lower mold is fixed on the workbench. The tool holder drives the upper mold to move relative to the lower mold to achieve bending movement. Because the workpiece bending has different bending angles, shapes and other requirements, it is often necessary to replace the upper and lower molds. After replacement, the upper mold blade is required to align with the lower mold notch. During operation, the upper mold is first installed on the tool holder, and then the lower mold is placed on the workbench, and the position is constantly adjusted to align. At present, people generally observe with the naked eye, manually push the lower mold to move, or knock the lower mold with a metal block to adjust it. The lower mold is generally heavy, and it is more laborious to push it, and the adjustment time is long. The knocking adjustment is not only slow and noisy, but also causes damage to the surface of the lower mold, affecting the processing efficiency.

[0004] Patent CN112246923B, "A lower-moving bending machine", discloses the bending machine structure commonly used in the prior art. In the prior art including this technical solution, the length of the lower mold is mostly equivalent to the length of the lower mold bearing seat. However, when processing products whose length is less than the length of the lower mold bearing seat, it is obviously unreasonable to use a larger bending knife for processing; and when using a lower mold with a length equivalent to the product for processing, the lower mold is unstable during the force-bearing process, and it is easy to deviate during the bending process, and the processing accuracy cannot be guaranteed. On the other hand, since the sheet metal parts are stamped by the upper and lower molds on the bending machine, the bending of the workpiece is achieved. During the processing, the lower mold is squeezed by the product and will repeatedly jump and deviate slightly. In severe cases, when the product is taken out, the lower mold will be lifted up. Such a situation accumulates many times, resulting in a large error value, which is easy to exceed the product's requirements for the error value, that is, a defective product.

[0005] In order to solve the above problems, designing a bending lower die adjustment and positioning device is an important technical problem that technicians in this field need to solve. Utility Model Content

[0006] The purpose of the utility model is to solve the above problems existing in the prior art and to provide a bending lower die adjustment and positioning device.

[0007] The purpose of the utility model is achieved through the following technical solutions:

[0008] A bending lower mold adjustment and positioning device is used to limit the position of the lower mold; it includes a lower mold bearing seat, at least one side fixing block adjustably arranged along the axial direction of the lower mold bearing seat, and support plates detachably arranged at both ends of the side fixing blocks; the side fixing blocks are arranged at the ends of the lower mold, and at least one of the side fixing blocks abuts against the end of the lower mold; the support plates are located on both sides of the lower mold; the side fixing blocks and the support plates limit the position of the lower mold in the length and width directions.

[0009] Preferably, a convex strip that cooperates with the side fixing block and the bottom groove of the lower mold is formed on the upper surface of the lower mold bearing seat, and the convex strip is arranged along the length direction of the lower mold bearing seat.

[0010] Preferably, a group of mounting holes are further provided on the upper surface of the lower mold bearing seat, and bolts pass through the side fixing block and are inserted into the mounting holes; the mounting holes are provided on the outer sides of the convex strips.

[0011] Preferably, there are two side fixing blocks, at least one of the two side fixing blocks can be moved relative to the lower mold bearing seat, and the distance between the two side fixing blocks can be adjusted to adapt to the length of the lower mold.

[0012] Preferably, the end of the side fixing block is provided with at least one dovetail groove matching the dovetail protrusion on the inner surface of the support plate, the dovetail groove is centrally arranged at the end of the side fixing block, and its arrangement direction is parallel to the protrusion.

[0013] Preferably, at least one side of the dovetail groove is provided with an external slot parallel to the dovetail groove, and the shape of the external slot matches the block on the inner surface of the support plate.

[0014] Preferably, a group of bolt holes are evenly distributed on the support plate, and bolts penetrate through the bolt holes to be connected to the outer side surface of the lower mold, or abut against or screw-connected to the end surface of the side fixing block.

[0015] Preferably, two end surfaces of the side fixing block are provided with connection holes for facilitating the insertion of bolts.

[0016] The advantages of the technical solution of the utility model are mainly reflected in:

[0017] The position of the lower die is limited in length and width by the side fixing block and the support plate, which effectively reduces the deviation caused by repeated slight jumping of the lower die due to the extrusion of the product during the processing, thereby ensuring the accuracy of the bending processing position and improving the yield rate;

[0018] The moving direction and moving position of the side fixing block and the lower mold are limited by the convex strips, thereby ensuring the moving straightness of the side fixing block and the lower mold;

[0019] The installation position of the side fixing block can be quickly adjusted by the length of the lower mold, that is, the distance between two adjacent installation holes, which reduces the adjustment time and improves work efficiency;

[0020] The side fixing block and the support plate are connected by multiple concave-convex structures to improve the installation stability, effectively prevent the support plate from falling during work, and thus improve the limiting stability of the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 : An exploded view of a preferred embodiment of the utility model;

[0022] Figure 2 : The utility model Figure 1 Enlarged view of part A;

[0023] Figure 3 : A three-dimensional diagram of a preferred embodiment of the utility model;

[0024] Figure 4 : Assembly drawing of the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0025] The purpose, advantages and features of the present invention will be illustrated and explained through the non-limiting description of the following preferred embodiments. These embodiments are only typical examples of the application of the technical solution of the present invention, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection claimed by the present invention.

[0026] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0027] like Figures 1 to 4 As shown, the utility model discloses a bending lower die adjustment and positioning device, which is used to limit the position of the lower die 9. The bending lower die adjustment and positioning device specifically comprises a lower die bearing seat 1 placed on a workbench 8, at least one side fixing block 2 adjustably arranged along the axial direction of the lower die bearing seat 1, and a support plate 3 detachably arranged at both ends of the side fixing block 2. The side fixing block 2 is arranged at the end of the lower die 9, and at least one of the side fixing blocks 2 abuts against the end of the lower die 9; that is, when the lower die 9 is located at the end of the lower die bearing seat 1, it is only necessary to move one of the side fixing blocks 2 to abut against the outer end surface of the lower die 9. The support plate 3 is located on both sides of the lower die 9. The side fixing block 2 and the support plate 3 are used to limit the position of the lower die 9 in the length and width directions, which effectively reduces the deviation caused by repeated slight jumping caused by the lower die being squeezed by the product during the processing, thereby ensuring the accuracy of the bending processing position and improving the yield rate.

[0028] Further, such as Figure 1 In the present application, it is preferred that a convex strip 11 is formed on the upper surface of the lower die bearing seat 1 to cooperate with the bottom grooves of the side fixing block 2 and the lower die 9, and the convex strip 11 is arranged along the length direction of the lower die bearing seat 1. The moving direction and moving position of the side fixing block 2 and the lower die 9 are limited by the convex strip 11, thereby ensuring the moving straightness of the side fixing block 2 and the lower die 9.

[0029] Furthermore, Figure 3 As shown, a group of mounting holes 10 are also provided on the upper surface of the lower die bearing seat 1, and bolts pass through the side fixing block 2 and are inserted into the mounting holes 10; the mounting holes 10 are provided on the outside of the convex strips 11. When the side fixing block 2 is moved into position, i.e., abuts against the end of the lower die 9, the position of the side fixing block 2 on the lower die bearing seat 1 is fixed by a manipulator or manually rotating the nut, thereby ensuring that the lower die 9 is effectively limited in the length direction. In addition, the installation position of the side fixing block 2 can be quickly adjusted by the length of the lower die 9, i.e., the distance between two adjacent mounting holes 10, thereby reducing the adjustment time and improving work efficiency.

[0030] like Figure 4 As shown, in the present application, two side fixing blocks 2 are preferably provided, at least one of the two side fixing blocks 2 can be moved relative to the lower mold bearing seat 1, and the distance between the two side fixing blocks 2 can be adjusted to adapt to the length of the lower mold 9. Further, the height of the fixing block 2 is less than the height of the lower mold 9, effectively avoiding interference during the working process.

[0031] like Figure 1 to Figure 2As shown, the end of the side fixing block 2 is provided with at least one dovetail groove 20 matching the dovetail protrusion 30 on the inner surface of the support plate 3, and the dovetail groove 20 is centrally arranged at the end of the side fixing block 2, and its arrangement direction is parallel to the convex strip 11. The support plate 3 can be quickly installed or removed from the side fixing block 2 through the concave-convex structure, which is simple to operate and improves work efficiency.

[0032] Furthermore, at least one side of the dovetail groove 20 is provided with an outer slot 21 parallel thereto, and the shape of the outer slot 21 matches the block 31 on the inner surface of the support plate 3. The side fixing block 2 and the support plate 3 are connected by a plurality of concave and convex structures, so as to improve the installation stability, effectively prevent the support plate 3 from falling during operation, and thus improve the limiting stability of the lower mold 9.

[0033] like Figure 3 As shown, a group of bolt holes 32 are evenly distributed on the support plate 3, and bolts penetrate the bolt holes 32 to connect with the outer side surface of the lower mold 9, or abut or screw with the end surface of the side fixing block 2. In order to facilitate and stabilize the connection between the side fixing block 2 and the support plate 3, the present application preferably provides connection holes (not shown in the figure) on both end surfaces of the side fixing block 2 for easy insertion of bolts.

[0034] There are many implementation methods of the utility model, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the utility model.

Claims

1. A bending lower die adjustment and positioning device, used to define the position of a lower die (9); characterized in that: The invention comprises a lower die support seat (1), at least one side fixing block (2) adjustably arranged along the axial direction of the lower die support seat (1), and support plates (3) detachably arranged at both ends of the side fixing block (2); the side fixing blocks (2) are arranged at the ends of the lower die (9), and at least one of the side fixing blocks (2) abuts against the ends of the lower die (9); the support plates (3) are located on both sides of the lower die (9); the side fixing blocks (2) and the support plates (3) limit the position of the lower die (9) in the length and width directions.

2. A bending lower die adjustment and positioning device according to claim 1, characterized in that: The upper surface of the lower die bearing seat (1) is formed with a convex strip (11) that cooperates with the side fixing block (2) and the bottom groove of the lower die (9), and the convex strip (11) is arranged along the length direction of the lower die bearing seat (1).

3. A bending lower die adjustment and positioning device according to claim 2, characterized in that: The upper surface of the lower die bearing seat (1) is also provided with a group of mounting holes (10), and bolts penetrate the side fixing block (2) and are inserted into the mounting holes (10); the mounting holes (10) are provided on the outside of the convex strips (11).

4. A bending lower die adjustment and positioning device according to claim 3, characterized in that: There are two side fixing blocks (2), and at least one of the two side fixing blocks (2) can move relative to the lower mold bearing seat (1), and the distance between the two side fixing blocks (2) can be adjusted to adapt to the length of the lower mold (9).

5. The bending lower die adjustment and positioning device according to claim 4, characterized in that: The end of the side fixing block (2) is provided with at least one dovetail groove (20) matching the dovetail protrusion (30) on the inner surface of the support plate (3); the dovetail groove (20) is centrally arranged at the end of the side fixing block (2), and its arrangement direction is parallel to the protrusion (11).

6. A bending lower die adjustment and positioning device according to claim 5, characterized in that: At least one side of the dovetail groove (20) is provided with an external clamping groove (21) parallel to the dovetail groove, and the shape of the external clamping groove (21) matches the clamping block (31) on the inner surface of the support plate (3).

7. A bending lower die adjustment and positioning device according to claim 6, characterized in that: The support plate (3) is evenly distributed with a group of bolt holes (32), and bolts penetrate the bolt holes (32) and are connected to the outer side surface of the lower mold (9), or are abutted or screwed to the end surface of the side fixing block (2).

8. The bending lower die adjustment and positioning device according to claim 7, characterized in that: The two end surfaces of the side fixing block (2) are provided with connection holes for facilitating the insertion of bolts.

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