Bending lower die assembling device
By designing a combination of mortise and tenon structure and rotary shaft balls in the bending machine, the problem of the existing bending machines being unable to adjust the bending angle and poor machining stability is solved, and the stability and machining accuracy of the adjustment block position are improved.
Patent Information
- Application Number
- CN202421333885.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-12
AI Technical Summary
When processing aluminum, existing bending machines cannot adjust the bending angle of the plate, which is not convenient to use. Moreover, when the linear drive device adjusts the spacing, the pressure exerts a force on the surface of the plate, resulting in poor processing stability and accuracy, and thread wear after long-term use increases processing error.
A bent lower mold assembly device is designed to quickly assemble the adjustment unit and the base through the mortise and tenon structure, limit the position and distance of the adjustment block, ensure its position stability during the processing, and reduce friction through the rotary shaft and ball, and reduce wear on the surface of the board.
Through the design of mortise and tenon structure, the position stability of the adjustment block is ensured, the inclination during the processing is reduced, the processing accuracy and yield rate are improved, and the wear on the surface of the board is reduced by reducing friction.
Smart Images
Figure CN222587854U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mechanical manufacturing, in particular to a bending lower die assembling device. Background Art
[0002] Sheets include sheet materials made of metal, plastic, etc. Among metal sheets, with the continuous development of the aluminum processing industry, aluminum products have been widely used. In the process of aluminum processing, the application of bending structures is indispensable, so the emergence of bending machines is indispensable. However, existing bending machines generally bend at a fixed angle, and the bending angle of the sheet cannot be adjusted during bending, which is not convenient to use.
[0003] To this end, patent CN216369672U, "A bending machine with adjustable curvature for aluminum profiles", proposes a technical solution to the above problems. In this technology, the motor drives the threaded rod to rotate, which in turn drives the placement head (adjustment unit) to move, so as to adjust the distance between the two placement heads to meet the needs of different bending angles. However, including this patent, the existing technology that uses a linear drive device to adjust the spacing, because the press will apply force to the surface of the plate including aluminum during the bending process, the placement head will be moved to both sides by the force transmitted by the plate at the moment of contact between the two, so that the width of the V-groove and the bending angle after bending are larger than the target width and angle, affecting the processing stability and accuracy. In addition, the threads on the threaded rod will inevitably wear during long-term use, further increasing the movement amplitude of the placement head during the bending process, thereby increasing the processing error and affecting the processing yield.
[0004] Therefore, designing a bending lower die assembly device is an important technical problem that those skilled in the art need to solve. Utility Model Content
[0005] The purpose of the utility model is to solve the above problems existing in the prior art and to provide a bending lower die assembly device.
[0006] The purpose of the utility model is achieved through the following technical solutions:
[0007] The bending lower die assembly device is arranged on the workbench of the press, and includes a base, on which an adjustment unit is detachably arranged; the adjustment unit includes an adjustment block 1 and an adjustment block 2 which are symmetrically arranged along the central axis in the width direction of the base, and the two are arranged at an interval; the bottoms of the adjustment block 1 and the adjustment block 2 and the upper surface of the base form a mortise and tenon structure that matches each other; the mortise and tenon structure limits the installation position of the adjustment block 1 and the adjustment block 2 on the base and stabilizes it; the two relatively close top angles of the adjustment block 1 and the adjustment block 2 are chamfered into arcs.
[0008] Preferably, the distance between the adjusting block 1 and the adjusting block 2 is 6 to 8 times the thickness of the bent plate.
[0009] Preferably, the mortise and tenon structure includes a group of equidistantly spaced protrusions arranged on the upper surface of the base, and a group of equidistantly spaced grooves arranged on the bottom surfaces of the adjustment block one and the adjustment block two, the width of the protrusions is equivalent to the width of the grooves, and the two cooperate to limit the positions of the adjustment block one and the adjustment block two and the distance between them.
[0010] Preferably, the protrusions include a central protrusion, the central protrusion is arranged on the central axis of the base in the width direction, and a V-shaped groove is formed on the upper surface of the central protrusion.
[0011] Preferably, the central protrusion is located directly below the bending tool in the press, and the lowest end of the V-shaped groove is coaxially arranged with the cutting edge of the bending tool.
[0012] Preferably, a rotating shaft is provided on the adjusting block 1 and the adjusting block 2, the circumferential surface of the rotating shaft is the arc chamfer, and the rotating shaft rotates relative to the adjusting block 1 and the adjusting block 2.
[0013] Preferably, balls are arranged between the rotating shaft and the adjusting block 1 and the adjusting block 2.
[0014] The advantages of the technical solution of the utility model are mainly reflected in:
[0015] The adjustment unit and the base are assembled quickly and effectively through the mortise and tenon structure to limit the distance between the adjustment block 1 and the adjustment block 2 and the center line of the base, as well as the installation position of the two, to ensure the position stability of the adjustment block 1 and the adjustment block 2 during the processing, thereby ensuring the yield rate;
[0016] The height ratio of the mortise and tenon structure to the main body height of the adjusting block 1 and the adjusting block 2 is used to ensure the stability of the processing process, thereby reducing the inclination of the two under force, and ensuring the processing accuracy and yield rate;
[0017] Arranging a rotating shaft on the top corners of the adjusting block 1 and the adjusting block 2 and arranging a ball between the two can effectively reduce the friction between the rotating shaft and the adjusting block 1 and / or the adjusting block 2, and between the rotating shaft and the plate, thereby reducing the wear on the surface of the plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 : Assembly drawing of the preferred embodiment of the utility model;
[0019] Figure 2 : A three-dimensional diagram of a preferred embodiment of the utility model;
[0020] Figure 3: The processing state of the preferred embodiment of the utility model is viewed from the end Figure 1 ;
[0021] Figure 4 : The utility model Figure 3 A magnified view of part A;
[0022] Figure 5 : The processing state of the preferred embodiment of the utility model is viewed from the end Figure 2 . DETAILED DESCRIPTION
[0023] 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.
[0024] 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.
[0025] like Figure 1 As shown, the utility model discloses a bending lower die assembly device, which is arranged on the workbench of the press, and includes a base 1, on which an adjustment unit 2 is detachably arranged. The two are matched by a mortise and tenon structure 102. A center convex block 11 is arranged on the central axis along the width direction of the base 1, and a V-shaped groove is formed on the upper surface of the center convex block 11. The center convex block 11 is located directly below the bending tool in the press, and the lowest end of the V-shaped groove is coaxially arranged with the cutting edge of the bending tool.
[0026] Further, such as Figure 3 or Figure 5 As shown, the mortise and tenon structure 102 includes a group of equidistantly spaced protrusions arranged on the upper surface of the base 1, and a group of equidistantly spaced grooves arranged on the bottom surface of the adjustment unit 2. The protrusions include a central protrusion 11, and the central protrusion 11 is arranged on the central axis of the base 1 in the width direction.
[0027] like Figures 2 to 5 As shown, the adjustment unit 2 includes an adjustment block 1 21 and an adjustment block 2 22 symmetrically arranged along the central axis of the width direction of the base 1, and the two are arranged at intervals; the bottom of the adjustment block 1 21 and the adjustment block 2 22 and the upper surface of the base 1 form the mortise and tenon structure 102 that matches each other; the installation position of the adjustment block 1 21 and the adjustment block 2 22 on the base 1 is limited by the mortise and tenon structure 102, and it is stabilized; that is, the adjustment unit and the base are quickly and effectively assembled by the mortise and tenon structure to limit the distance between the adjustment block 1 and the adjustment block 2 and the center line of the base, and the installation position of the two, to ensure the position stability of the adjustment block 1 and the adjustment block 2 during the processing, and then to ensure the yield rate. Specifically, the distance between the adjustment block 1 21 and the adjustment block 2 22 is 6 to 8 times the thickness of the bending plate, and the present application more preferably sets the distance between the two to 6 times the thickness of the bending plate. Experienced technicians in this field can also adjust the distance between the adjustment block 1 21 and the adjustment block 2 22, that is, the multiple of the plate thickness, according to specific processing requirements, which is not limited here. Therefore, this embodiment can be applied to the bending processing of plates to be bent of various thicknesses, with a wide range of applications and high processing accuracy.
[0028] The projections and recesses may be as follows Figure 3 or Figure 5 The rectangular structure shown can also be a dovetail groove structure, which is not limited here. In the present application, it is preferably described with a rectangular structure. Specifically, the width of the protrusion is equivalent to the width of the groove, and the two cooperate to limit the position of the adjustment block 1 21 and the adjustment block 2 22 and the distance between the two. In the present application, the width of the protrusion is preferably designed to be 10mm, that is, the minimum plate that can be processed in the present application is 1.5mm. The width of the protrusion can be adjusted according to the processing requirements, which is not limited here. The height ratio of the mortise and tenon structure 102 described in the present application to the main body height of the adjustment block 1 21 and the adjustment block 2 22 is preferably not less than 1:5.5. If the height ratio is less than this ratio, the stability during the processing is not enough. If the height ratio is greater than this ratio, the bending angle cannot meet the standard. Therefore, this ratio can guarantee the stability of the adjustment block 1 21 and the adjustment block 2 22 during the processing to the greatest extent, reduce the situation of the two being tilted by force, and ensure the processing accuracy and yield rate.
[0029] When bending the plate, the press drives the bending tool to descend and contact the plate on the upper surface of the adjusting unit 2, and applies force to the plate, and the plate is bent by the force; in this process, in order to prevent the plate from being worn by the force, it is preferred in the present application to chamfer the two relatively close top corners of the adjusting block 1 21 and the adjusting block 2 22 into arc chamfers.
[0030] Furthermore, if Figure 4As shown, the adjusting block 1 21 and the adjusting block 2 22 are provided with a rotating shaft 23, the circumferential surface of the rotating shaft 23 is the arc chamfer, and the rotating shaft 23 rotates relative to the adjusting block 1 21 and the adjusting block 2 22. Furthermore, a ball 24 is provided between the rotating shaft 23 and the adjusting block 1 21 and the adjusting block 2 22. The rotating shaft 23 is provided on the top angles of the adjusting block 1 21 and the adjusting block 2 22, and the ball 24 is provided between the two, which can effectively reduce the friction between the rotating shaft 23 and the adjusting block 1 21 and / or the adjusting block 2 22, and between the rotating shaft 23 and the plate, thereby reducing the wear on the plate surface.
[0031] 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. The bending lower die assembly device is arranged on the working table of the press machine, and is characterized by: The invention comprises a base (1), on which an adjustment unit (2) is detachably arranged; the adjustment unit (2) comprises an adjustment block 1 (21) and an adjustment block 2 (22) which are symmetrically arranged along the central axis in the width direction of the base (1), and the two are arranged at an interval; the bottoms of the adjustment block 1 (21) and the adjustment block 2 (22) and the upper surface of the base (1) form mutually matching mortise and tenon structures (102); the mortise and tenon structures (102) define the installation positions of the adjustment block 1 (21) and the adjustment block 2 (22) on the base (1) and stabilize them; The two relatively close apex angles of the adjusting block 1 (21) and the adjusting block 2 (22) are chamfered into circular arcs.
2. The bending lower die assembly device according to claim 1, characterized in that: The distance between the adjusting block 1 (21) and the adjusting block 2 (22) is 6 to 8 times the thickness of the bent plate.
3. The bending lower die assembly device according to claim 2, characterized in that: The mortise and tenon structure (102) comprises a group of equidistantly spaced protrusions arranged on the upper surface of the base (1), and a group of equidistantly spaced grooves arranged on the bottom surfaces of the first adjustment block (21) and the second adjustment block (22), wherein the width of the protrusions is equivalent to the width of the grooves, and the two cooperate to limit the position of the first adjustment block (21) and the second adjustment block (22) and the distance between them.
4. The bending lower die assembly device according to claim 3, characterized in that: The convex block comprises a central convex block (11), the central convex block (11) is arranged on the central axis of the base (1) in the width direction, and a V-shaped groove is formed on the upper surface of the central convex block (11).
5. The bending lower die assembly device according to claim 4, characterized in that: The central protrusion (11) is located directly below the bending tool in the press, and the lowest end of the V-shaped groove is coaxially arranged with the cutting edge of the bending tool.
6. The bending lower die assembly device according to claim 5, characterized in that: A rotating shaft (23) is provided on the adjusting block one (21) and the adjusting block two (22); the circumferential surface of the rotating shaft (23) is the circular arc chamfer, and the rotating shaft (23) rotates relative to the adjusting block one (21) and the adjusting block two (22).
7. The bending lower die assembly device according to claim 6, characterized in that: A ball (24) is provided between the rotating shaft (23) and the first adjustment block (21) and the second adjustment block (22).