Anti-strain bending precision die

Abstract

The utility model relates to the technical field of bending dies, in particular to an anti-strain bending precision die which comprises a fixed shell, a mounting base is mounted on the inner wall of the fixed shell, a mounting groove is formed in the outer wall of the mounting base, a mounting hole is formed in the inner wall of the mounting groove, and a clamping groove is formed in the outer wall of the mounting groove. A control panel is arranged to control an electric control hydraulic rod to operate, one end of the electric control hydraulic rod pushes an extrusion block downwards, the extrusion block extrudes a plate, when the plate is bent to the middle, the plate extrudes a limiting block, the limiting block drives a rotating rod to rotate, the rotating rod rotates, and the plate is bent to the middle. According to the bending die with the self-adaptive angle, the bending angle of the die can be well bent according to the extrusion block, the applicability of the bending angle of the die is good, the limiting blocks roll on the outer walls of the balls, abrasion of the limiting blocks is reduced, and compared with a bending die with a fixed angle, the bending die with the self-adaptive angle is not prone to strain.

Description

Technical Field

[0001] The utility model relates to the technical field of bending moulds, in particular to a strain-proof bending precision mould. Background Art

[0002] Stamping and bending parts are a common product in the stamping process, and bending parts are also relatively simple stamping products with low technical content. Although the stamping and bending process is simple, due to the processability of bending, it sometimes also has some defects. Common problems in the stamping of bent parts include: the size of the bent workpiece after stamping does not meet the standard or the shape has errors, the surface quality of the bent parts is poor, etc. Due to unreasonable mold design, such as too small or too large angles, improper mold radius design, etc., the mold strength will be insufficient, easy to deform and strain, and bending and straining problems will easily occur.

[0003] In this solution, a strain-proof bending precision mold is therefore needed to improve the above-mentioned problem. Utility Model Content

[0004] The utility model aims to provide a strain-proof bending precision mold to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The cam is provided with a plurality of holes, on which the fixing plate is mounted, and the holes are connected to the inner wall of the fixing base, wherein the fixing plate is provided with a plurality of holes, on which the fixing plate is mounted, and the holes are connected to the inner wall of the fixing base.

[0007] As a preferred solution of the utility model, the control panel is connected to the electric-controlled hydraulic rod via a wire and the connection method is electrical connection, and the cross-section of the fixed shell is a concave structure.

[0008] As a preferred solution of the utility model, the mounting holes are provided in multiple groups and are respectively located on the inner wall of the mounting groove, and the balls are provided in multiple groups and are respectively located on the inner wall of the mounting holes.

[0009] As a preferred solution of the utility model, the fixing plates are provided in two groups and are respectively located on opposite side walls of the mounting base, and the rotating rods are provided in two groups and are respectively located on the outer walls of the fixing plates.

[0010] As a preferred solution of the utility model, the limit blocks are provided in two groups and are respectively located on the inner walls of the mounting groove, the limit blocks are located on one side of the ball, the extrusion blocks are located on one side of the rotating rod, and the extrusion blocks are aligned with the gap between the two groups of limit blocks.

[0011] As a preferred solution of the utility model, the fixing hole is located directly above the mounting groove, the fixing sleeves are provided in two groups and are respectively located on the outer wall of the fixed shell, and the limiting slide rods are provided in two groups and are respectively located on the outer wall of the extrusion block.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, a rotating rod in the anti-strain precision bending mold is used, and the control panel is used to control the operation of the electric-controlled hydraulic rod, so that one end of the electric-controlled hydraulic rod pushes the extrusion block downward, so that the extrusion block extrudes the plate. When the plate is bent toward the middle, the plate squeezes the limit block, so that the limit block drives the rotating rod to rotate, so that the bending angle of the mold can be well bent according to the extrusion block. The bending angle of the mold has good applicability, so that the limit block rolls on the outer wall of the ball, reducing the wear of the limit block. Compared with the bending mold with a fixed angle, the bending mold with an adaptive angle is not easy to cause the problem of strain, which is beneficial to solve the problem of substandard size or shape error of the bent workpiece after stamping, poor surface quality of the bent part, etc. Due to unreasonable mold design, such as too small or too large angle, improper mold radius design, etc., the mold strength is insufficient, easy to deform and strain, and bending and strain problems are prone to occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation base structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the ball structure of the utility model.

[0017] In the figure: 1. Fixed shell; 2. Mounting base; 3. Mounting groove; 4. Mounting hole; 5. Ball; 6. Fixed plate; 7. Rotating rod; 8. Limit block; 9. Fixed hole; 10. Electric hydraulic rod; 11. Control panel; 12. Extrusion block; 13. Fixed sleeve; 14. Limit slide bar. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0020] A strain-proof bending precision mold comprises a fixed shell 1, a mounting base 2 is installed on the inner wall of the fixed shell 1, a mounting groove 3 is provided on the outer wall of the mounting base 2, a mounting hole 4 is provided on the inner wall of the mounting groove 3, a ball 5 is rotatably connected to the inner wall of the mounting hole 4, a fixing plate 6 is installed on one side of the mounting groove 3 and on the side wall of the mounting base 2, a rotating rod 7 is rotatably connected to the inner wall of the fixing plate 6, a limiting block 8 is installed on the outer wall of the rotating rod 7, a fixing hole 9 is provided on the outer wall of the fixed shell 1, an electric-controlled hydraulic rod 10 is installed at the port of the fixing hole 9, a control panel 11 is installed on the outer wall of the electric-controlled hydraulic rod 10, one end of the electric-controlled hydraulic rod 10 passes through the fixing hole 9 and extends to a side of the fixed shell 1 where an extrusion block 12 is installed, a fixing sleeve 13 is embedded and installed on one side of the fixing hole 9 and located on the outer wall of the fixed shell 1, a limiting slide bar 14 is slidably connected to the inner wall of the fixing sleeve 13, and one end of the limiting slide bar 14 is connected to the outer wall of the extrusion block 12.

[0021] In this embodiment, please refer to Figure 1 , Figure 2 and Figure 3 The control panel 11 is connected to the electric-controlled hydraulic rod 10 through a wire and the connection method is electrical connection. The cross-section of the fixed shell 1 is a concave structure. The mounting holes 4 are provided in multiple groups and are respectively located on the inner wall of the mounting groove 3. The balls 5 are provided in multiple groups and are respectively located on the inner wall of the mounting hole 4. The fixing plate 6 is provided with two groups and is respectively located on the opposite side walls of the mounting base 2. The rotating rod 7 is provided with two groups and is respectively located on the outer wall of the fixing plate 6. The limit blocks 8 are provided with two groups and are respectively located on the inner wall of the mounting groove 3. The limit blocks 8 are located on one side of the ball 5. The extrusion block 12 is located on one side of the rotating rod 7. The extrusion block 12 is aligned with the gap between the two groups of limit blocks 8. The fixing hole 9 is located directly above the mounting groove 3. The fixing sleeves 13 are provided with two groups and are respectively located on the outer wall of the fixed shell 1. The limit slide bars 14 are provided with two groups and are respectively located on the outer wall of the extrusion block 12.

[0022] The working process of the utility model is as follows: when the strain-proof bending precision mold designed by the present invention is working, the control panel 11 is connected to the electric-controlled hydraulic rod 10 through a wire and the connection method is electrical connection, so that the device is energized, and the plate to be bent is placed on the outer wall of the limit block 8. It is only necessary to turn on the switch of the control panel 11 so that the control panel 11 controls the operation of the electric-controlled hydraulic rod 10, so that one end of the electric-controlled hydraulic rod 10 pushes the extrusion block 12 downward. When the extrusion block 12 is located on one side of the rotating rod 7, the extrusion block 12 is aligned with the gap between the two groups of limit blocks 8, and the fixing hole 9 is located directly above the mounting groove 3, so that the extrusion block 12 squeezes the plate. When the plate is bent toward the middle, the plate squeezes the limit block 8, so that the limit block 8 drives the rotating rod 7 to rotate. The bending angle of the mold can be well bent according to the extrusion block 12, and the bending angle of the mold has good applicability. At the same time, a mounting hole 4 is opened on the inner wall of the mounting groove 3, and a ball 5 is rotatably connected to the inner wall of the mounting hole 4. The ball 5 is provided in multiple groups and is respectively located on the inner wall of the mounting hole 4, so that the limit block 8 rolls on the outer wall of the ball 5, reducing the wear of the limit block 8. Compared with the bending mold with a fixed angle, the bending mold with an adaptive angle is not prone to the problem of strain, which is beneficial to solve the problem of substandard size or shape error of the bent workpiece after stamping, poor surface quality of the bent part, etc. Due to unreasonable mold design, such as too small or too large angle, improper mold radius design, etc., the mold strength is insufficient, it is easy to deform and strain, and bending and strain problems are prone to occur.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A strain-proof bending precision mold, comprising a fixed housing (1), characterized in that: A mounting base (2) is mounted on the inner wall of the fixed housing (1), a mounting groove (3) is provided on the outer wall of the mounting base (2), a mounting hole (4) is provided on the inner wall of the mounting groove (3), a ball bearing (5) is rotatably connected to the inner wall of the mounting hole (4), a fixing plate (6) is mounted on one side of the mounting groove (3) and on the side wall of the mounting base (2), a rotating rod (7) is rotatably connected to the inner wall of the fixing plate (6), a limiting block (8) is mounted on the outer wall of the rotating rod (7), and a fixing hole (9) is provided on the outer wall of the fixed housing (1). An electric-controlled hydraulic rod (10) is installed at the end of the fixing hole (9), a control panel (11) is installed on the outer wall of the electric-controlled hydraulic rod (10), one end of the electric-controlled hydraulic rod (10) passes through the fixing hole (9) and extends to a side of the fixing shell (1) where an extrusion block (12) is installed, a fixing sleeve (13) is embedded and installed on one side of the fixing hole (9) and located on the outer wall of the fixing shell (1), a limiting slide bar (14) is slidably connected to the inner wall of the fixing sleeve (13), and one end of the limiting slide bar (14) is connected to the outer wall of the extrusion block (12).

2. The anti-strain bending precision mold according to claim 1, characterized in that: The control panel (11) is connected to the electric-controlled hydraulic rod (10) via a wire and the connection method is electrical connection. The cross section of the fixed housing (1) is a concave structure.

3. The anti-strain bending precision mold according to claim 1, characterized in that: The mounting holes (4) are provided in multiple groups and are respectively located on the inner wall of the mounting groove (3); the balls (5) are provided in multiple groups and are respectively located on the inner wall of the mounting holes (4).

4. The anti-strain bending precision mold according to claim 1, characterized in that: The fixing plates (6) are provided in two groups and are respectively located on opposite side walls of the mounting base (2); the rotating rods (7) are provided in two groups and are respectively located on the outer walls of the fixing plates (6).

5. The anti-strain bending precision mold according to claim 1, characterized in that: The limit blocks (8) are provided in two groups and are respectively located on the inner wall of the installation groove (3); the limit blocks (8) are located on one side of the ball (5); the extrusion block (12) is located on one side of the rotating rod (7); and the extrusion block (12) is aligned with the gap between the two groups of limit blocks (8).

6. The anti-strain bending precision mold according to claim 1, characterized in that: The fixing hole (9) is located directly above the mounting groove (3), two groups of fixing sleeves (13) are provided and are respectively located on the outer wall of the fixing shell (1), and two groups of limiting slide bars (14) are provided and are respectively located on the outer wall of the extrusion block (12).

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