Springback prevention mechanism of die

Abstract

The utility model relates to the technical field of die processing devices, in particular to a springback prevention mechanism of a die, which comprises a die table and further comprises a stamping support table arranged on the die table and used for placing a stamping part; the driving assembly is arranged on the die table and used for controlling the stamping force of the stamping assembly; the punching assembly is arranged at the lower end of the driving assembly, and the punching supporting table, the driving assembly and the punching assembly are arranged, wedge block cavities are formed in the two sides of the lower end of a punching block and filled with wedge blocks, and the wedge blocks are hinged to the punching block, so that during punching, the wedge blocks can act along the side walls of the wedge block cavities, extra constraint is applied to a plate, and the springback acting force is counteracted; according to the stamping die, plate springback is effectively reduced, the precision and shape accuracy of a stamping part are improved, and compared with a traditional mode, the wedge block can keep relatively stable action in different stamping stages, and stable constraint on the plate is maintained.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould processing device technical field, concretely is a kind of preventing rebound mechanism of mould. BACKGROUND

[0002] The preventing rebound mechanism of mould refers to a series of special structures and devices designed and adopted in the process of mould design and manufacturing to overcome the rebound phenomenon caused by elastic recovery of material after forming.

[0003] At present, in the mould stamping process on the market, the rebound of plate material is prone to occur, and the traditional rebound elimination method mostly increases or reduces the gap of mould according to the thickness, material quality and other characteristics of plate material by experience, but this method has certain defects, that is, it is difficult to accurately match the characteristics of plate material by experience adjustment of mould gap, and there is a large error, therefore, the utility model provides a kind of preventing rebound mechanism of mould to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of preventing rebound mechanism of mould to solve the problems proposed in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of preventing rebound mechanism of mould, including mould table, still including: stamping support table, be located on mould table, it is used to place stamping part;Drive assembly, it is set on mould table, it is used to control the stamping degree of stamping assembly;Stamping assembly, stamping assembly includes stamping block, wedge cavity is set in the lower end both sides of stamping block, wedge cavity is filled with wedge at the wedge cavity of the both ends of stamping block, and stamping block is hinged with left and right two wedges by movable block.

[0006] Preferably, the stamping support table includes a bearing table and two sets of movable plates, the two sets of movable plates are mounted on the bearing table by a movable shaft, the two sets of movable plates are provided with a shaped notch, and the shaped notches of the two sets of movable plates jointly bear a support plate, the support plate is installed above the groove provided on the bearing table, and the shaped notches provided on the two sets of movable plates act on the plate material to be bent and stamped.

[0007] Preferably, the drive assembly includes a pneumatic cylinder, the pneumatic cylinder is assembled on the top of the mould table, the output end of the pneumatic cylinder is provided with a connecting block, and the pneumatic cylinder is connected with the stamping block in the stamping assembly through the connecting block of the output end.

[0008] Preferably, the two drive assemblies further include two sleeves, the two sleeves are both mounted on the mould table, and the two sleeves are both provided with guide columns, and the two sets of guide columns are connected to the two ends of the stamping block respectively.

[0009] Preferably, the mold table is further provided with a deviation prevention assembly, which comprises a bidirectional screw rod installed in a rectangular groove on both sides of the mold table, and the bidirectional screw rod is connected with two baffle plates.

[0010] Preferably, rubber pads are attached to the clamping end faces of the two baffle plates.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] The stamping support table, the driving assembly and the stamping assembly are provided, the wedge cavities are formed in the lower ends of the stamping blocks, the wedge cavities are filled with wedge blocks, the wedge blocks are hinged to the stamping blocks, the wedge blocks can move along the side walls of the wedge cavities to apply additional constraints to the plate during stamping, the rebounding force is offset, the plate rebounding is effectively reduced, the precision and shape accuracy of the stamping part are improved, and compared with the traditional method of appropriately increasing or reducing the gap of the mold according to the thickness and material of the plate, the structure that the wedge blocks are hinged to the stamping blocks in the utility model can keep the wedge blocks in stable movement in different stamping stages, stably constrain the plate and effectively resist the rebounding during the whole stamping process. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model.

[0014] Figure 2 It is a driving assembly and stamping assembly partial structure connection schematic view of the utility model.

[0015] Figure 3 It is a driving assembly structure schematic view of the utility model.

[0016] Figure 4 It is a deviation prevention assembly structure schematic view of the utility model.

[0017] In the drawing: 100, mold table; 200, stamping support table; 201, bearing table; 202, movable plate; 203, movable shaft; 204, support plate; 300, driving assembly; 301, air cylinder; 302, connecting block; 303, sleeve; 304, guide column; 400, stamping assembly; 401, stamping block; 402, wedge cavity; 403, wedge block; 404, movable block; 500, deviation prevention assembly; 501, bidirectional screw rod; 502, baffle plate; 503, rubber pad. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0019] Please refer to Figures 1 to 4 The utility model provides a kind of technical solutions: a kind of rebound prevention mechanism of mould, including mould table 100, still include: stamping support table 200, it is set on mould table 100, it is used to place stamping piece;Driving assembly 300 is set on mould table 100, it is used to control the stamping degree of stamping assembly 400;Stamping assembly 400 is set in the lower end of driving assembly 300, and stamping assembly 400 includes stamping block 401, wedge cavity 402 is set in the lower end of stamping block 401 both sides, and wedge cavity 402 is filled with wedge block 403 in the both ends of stamping block 401 where it is equipped, and stamping block 401 is hinged with left and right two wedge blocks 403 by movable block 404.

[0020] Please refer to Figures 1 to 4 Stamping support table 200 includes bearing table 201 and two groups of movable slab 202, and two groups of movable slab 202 are installed on bearing table 201 by movable shaft 203, and two groups of movable slab 202 are set with the shaping gap, and the shaping gap of two groups of movable slab 202 is jointly supported with support plate 204, and support plate 204 is installed above the recess of bearing table 201, and the shaping gap of two groups of movable slab 202 is used to bend the plate to be stamped.

[0021] Please refer to Figures 1 to 4 Driving assembly 300 includes cylinder 301, and cylinder 301 is assembled on the top of mould table 100, and cylinder 301 is equipped with connecting block 302 on output end, and cylinder 301 is connected with stamping block 401 in stamping assembly 400 by connecting block 302 on output end, and two driving assemblies 300 further include two sleeves 303, and two sleeves 303 are both installed on mould table 100, and guide column 304 is arranged in two sleeves 303, and two groups of guide columns 304 are connected at both ends of stamping block 401.

[0022] Please refer to Figures 1 to 4 Mould table 100 is further provided with anti-deviation assembly 500, and anti-deviation assembly 500 includes bidirectional screw 501 installed in rectangular groove on both sides of mould table 100, and bidirectional screw 501 is connected with two baffles 502, and rubber gasket 503 is pasted on the clamping end face of two baffles 502, and the plate can be prevented from deviating during stamping by left and right two baffles 502, and the plate can be prevented from being scratched by rubber gasket 503 arranged on the clamping end face of two baffles 502.

[0023] In actual use, the plate to be punched is placed on the support plate 204 of the punching support table 200, and the two ends of the plate are placed in the shaped notches of the two sets of movable plate blocks 202, at this time, the movable plate blocks 202 can be flexibly rotated on the bearing table 201 through the movable shaft 203, preparing for the subsequent bending of the plate, then the rubber gasket 503 pasted on the end face is clamped by the baffle 502 through the bidirectional screw rod 501 in the rectangular groove on both sides of the rotary die table 100, limiting the plate inside to prevent the plate from shifting during the punching process, then the air cylinder 301 is started, the connecting block 302 at the output end of the air cylinder 301 drives the punching block 401 to move downward, in the process of the downward movement of the punching block 401, the guide column 304 slides along the inner wall of the sleeve 303, guiding the punching block 401 to move vertically downward, as the punching block 401 continues to move downward, the wedge blocks 403 in the wedge block cavities 402 on both sides of the lower end of the punching block 401 gradually coincide along the side walls of the wedge block cavities 402 due to the hinging with the punching block 401 through the movable block 404, the wedge blocks 403 exert lateral pressure on both sides of the plate in this process, constraining the plate from the side and offsetting the rebounding force that the plate may generate during the punching process, at this time, the punching block 401 continues to press down, when the pressure is transmitted to the movable plate blocks 202, the movable plate blocks 202 rotate around the movable shaft 203, bending the plate by using the shaped notches, and the plate is bent while continuing to move downward with the downward movement of the punching block 401, finally entering the groove provided in the bearing table 201, completing the punching forming.

[0024] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A mechanism for preventing springback of a mold comprising a mold table (100), characterized by, The punch support table (200), the driving assembly (300) and the punch assembly (400) for placing the punched part are also included. The punch support table (200) is arranged on the die table (100), and the punch support table (200) includes a bearing table (201) and two groups of movable plate blocks (202), the two groups of movable plate blocks (202) are installed on the bearing table (201) through movable shafts (203), and the two groups of movable plate blocks (202) are provided with shaping notches for bending the punched plate. The driving assembly (300) is arranged on the die table (100). The punch assembly (400) includes a punch block (401), wedge cavities (402) are arranged on both sides of the lower end of the punch block (401), the wedge cavities (402) arranged at both ends of the punch block (401) are filled with wedge blocks (403), and the punch block (401) is hinged to the left and right wedge blocks (403) through movable blocks (404).

2. The mechanism for preventing springback of a mold according to claim 1, characterized by: The two groups of movable plate blocks (202) are jointly loaded with a support plate (204) on the shaping notches, and the support plate (204) is arranged above the groove arranged on the bearing table (201).

3. The mechanism for preventing springback of a mold according to claim 1, characterized by: The driving assembly (300) includes a cylinder (301), the cylinder (301) is assembled on the top of the die table (100), a connecting block (302) is arranged at the output end of the cylinder (301), and the cylinder (301) is connected with the punch block (401) in the punch assembly (400) through the connecting block (302) at the output end.

4. The mechanism for preventing springback of a mold according to claim 3, characterized by: The two driving assemblies (300) further include two sleeves (303), the two sleeves (303) are both installed on the die table (100), and guide columns (304) are arranged in the two sleeves (303), and the two groups of guide columns (304) are connected to both ends of the punch block (401).

5. The mechanism for preventing springback of a mold according to claim 1, characterized by: The die table (100) is further provided with an anti-deviation assembly (500), the anti-deviation assembly (500) includes bidirectional screws (501) installed in the rectangular grooves on both sides of the die table (100), and the bidirectional screws (501) are connected with two baffles (502).

6. A mechanism for preventing springback in a mold as defined in claim 5, wherein: Rubber gaskets (503) are attached to the clamping end faces of the two baffles (502).

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