Extrusion device for hardware stamping die

Abstract

The extrusion device comprises a machine frame, an installation plate, a first air cylinder, a stamping die and a forming die, the first air cylinder is fixedly installed at the top of an inner cavity of the machine frame, the installation plate is fixedly connected to the bottom of the first air cylinder, the two ends of the installation plate are connected with the machine frame in a sliding mode, and the stamping die is installed at the bottom of the installation plate. The utility model relates to the technical field of stamping dies. According to the extrusion device for the hardware stamping die, the problem that the stamping curve of a workpiece is not standard due to the fact that one-time stamping is not in place during stamping of an existing hardware stamping die is solved, a second air cylinder drives a pressing block at the bottom to impact and stamp a pressing plate again, and when the pressing block impacts the pressing plate downwards for many times, the pressing plate is pressed downwards. The workpiece between the ejector blocks is pressed again through the pressing plate, extrusion forming of the workpiece is more standard, inaccuracy caused by insufficient pressure applied to the bent local part of the workpiece needing to be machined to be bent is avoided, and therefore the curve of the stamped workpiece is more obvious.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch press die technical field, concretely is a kind of extrusion device for hardware punch press die. BACKGROUND

[0002] Punch press die, it is in cold stamping processing, material (metal or non-metal) processing into part (or semi-finished product) a kind of special process equipment, is called cold punch press die (commonly known as cold punch die). Punching, it is at room temperature, using the die installed on the press to material to exert pressure, make it produce separation or plastic deformation, so that the required part of a kind of pressure processing method.

[0003] But existing hardware punch press die is not in place once stamping when stamping, upper die and lower die stamping are not enough to complete, there is gap, make its workpiece stamping curve not standard, influence stamping effect. INVENTION CONTENTS

[0004] In view of the deficiencies of prior art, the utility model provides a kind of extrusion device for hardware punch press die, solve the problem that existing hardware punch press die is not in place once stamping when stamping, make its workpiece stamping curve not standard.

[0005] To realize above-mentioned purpose, the utility model is realized by following technical scheme: a kind of extrusion device for hardware punch press die, including rack, mounting plate, one air cylinder, punch press die and forming die, the rack inner chamber top is fixedly installed one air cylinder, the one air cylinder bottom is fixedly connected with mounting plate, the mounting plate both ends are slidably connected with rack, the mounting plate bottom is installed with punch press die, the rack inner chamber bottom is installed with forming die, the punch press die inner chamber bottom is slidably installed with pressing plate, the punch press die inside is equipped with movable slot, and pressing plate is located movable slot inner chamber bottom, the movable slot inner chamber top is installed with pressing block, the mounting plate top is installed with two air cylinders, and two air cylinder bottom end penetrates mounting plate and is fixed to the top of pressing block, the movable slot inner chamber bottom both sides are equipped with sliding slot, the pressing plate both ends are fixedly connected with sliding block, and sliding block is slidably located sliding slot inner chamber top, the sliding slot inner chamber bottom is installed with one spring, and one spring is located sliding block bottom.

[0006] Preferably, the forming die inside is equipped with forming groove, and the forming groove inner chamber is installed with top block.

[0007] Preferably, the forming die bottom is installed with shock-absorbing column, and the shock-absorbing column is located forming groove bottom.

[0008] Preferably, the shock-absorbing column comprises a sleeve, a piston rod movably inserted into the top of the inner cavity of the sleeve, and a top block fixedly connected to the top end of the piston rod, a second spring installed on the outside of the piston rod and located at the top of the sleeve, and a third spring installed at the bottom of the inner cavity of the sleeve and located at the bottom end of the piston rod.

[0009] Preferably, the pressing block is located at the top of the pressing plate, and the surface structure of the bottom of the pressing block is the same as that of the top of the pressing plate.

[0010] Beneficial effects

[0011] The utility model provides a kind of extrusion device for hardware stamping die.It has the following beneficial effects:

[0012] 1, the extrusion device for hardware stamping die, by second cylinder drives the pressing block at bottom to impact again to the pressing plate for stamping, when pressing block multiple times impact pressing plate downwards, make its workpiece between pressing plate and top block again pressure, make extrusion forming more standard, avoid the need to process the curved workpiece and the curved local pressure not enough to lead to inaccuracy, so that stamping die carries out preliminary overall depression after this, by second cylinder drives pressing block to impact again, so that improve the curve of workpiece after stamping is more obvious, avoid the gap between stamping die and top block when initial stamping. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure schematic diagram of the utility model;

[0014] Figure 2 It is the shock-absorbing column structure schematic diagram of the utility model;

[0015] Figure 3 It is the utility model Figure 1 When the enlarged structure schematic diagram of A in middle is shown.

[0016] In the drawing: 1, rack;2, mounting plate;3, first cylinder;4, stamping die;5, forming die;6, forming groove;7, top block;8, shock-absorbing column;9, movable slot;10, pressing block;11, second cylinder;12, first spring;13, sleeve;14, piston rod;15, second spring;16, third spring;17, pressing plate;18, sliding slot;19, sliding block. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0018] Please refer to Figures 1-2 The utility model provides a kind of extrusion device for hardware stamping die technical scheme: a kind of extrusion device for hardware stamping die, including rack 1, mounting plate 2, No. 3 air cylinder, stamping die 4 and forming die 5, rack 1 inner chamber top is fixedly installed No. 3 air cylinder, No. 3 air cylinder bottom is fixedly connected with mounting plate 2, and mounting plate 2 both ends are slidably connected with rack 1, and mounting plate 2 bottom is installed with stamping die 4, and rack 1 inner chamber bottom is installed with forming die 5, and the inner chamber bottom of stamping die 4 is slidably installed with pressing plate 17, and the inner side of stamping die 4 is provided with movable groove 9, and pressing plate 17 is located in the inner chamber bottom of movable groove 9, and movable groove 9 inner chamber top is installed with pressing block 10, and mounting plate 2 top is installed with No. 11 air cylinder, and No. 11 air cylinder bottom end is fixed to the top of pressing block 10 with mounting plate 2, and the inner chamber bottom of movable groove 9 is provided with sliding slot 18 on both sides, and the both ends of pressing plate 17 are fixedly connected with sliding block 19, and sliding block 19 is slidably located in the inner chamber top of sliding slot 18, and No. 1 spring 12 is installed in the inner chamber bottom of sliding slot 18, and No. 1 spring 12 is located in the bottom of sliding block 19.

[0019] The inner side of forming die 5 is provided with forming groove 6, and top block 7 is installed in the inner chamber of forming groove 6.

[0020] Forming die 5 bottom is installed with shock column 8, and shock column 8 is located in the bottom of forming groove 6.

[0021] Shock column 8 includes sleeve 13, piston rod 14 is movably inserted in the inner chamber top of sleeve 13, and piston rod 14 top end is fixedly connected with top block 7 by penetrating forming groove 6, No. 2 spring 15 is installed on the outer side of piston rod 14, and No. 2 spring 15 is located in the top of sleeve 13, No. 3 spring 16 is installed in the inner chamber bottom of sleeve 13, and No. 3 spring 16 is located in the bottom end of piston rod 14.

[0022] Pressing block 10 is located in the top of pressing plate 17, and the bottom surface structure of pressing block 10 is same with the top surface structure of pressing plate 17.

[0023] When working, the workpiece in the cavity of the forming groove 6 is stamped when the stamping die 4 is pressed down. After the first high-impact stamping, the No. 2 air cylinder 11 at the top of the stamping die 4 drives the bottom pressing block 10 to impact the pressing plate 17 again. The sliding blocks 19 at both ends of the pressing plate 17 slide to the top of the sliding groove 18, so when the pressing block 10 repeatedly impacts the pressing plate 17, it makes the workpiece between the pressing plate 17 and the top block 7 be pressed again, so that the extrusion forming is more standard, avoiding the inaccuracy caused by insufficient pressure on the curved part of the workpiece that needs to be processed into a curved shape. After the preliminary overall pressing of the stamping die 4, the pressing block 10 is driven by the No. 2 air cylinder 11 to impact again, which improves the curve of the workpiece after stamping and avoids the gap between the stamping die 4 and the top block 7 during the initial stamping. The setting of the shock column 8 makes the stamping die 4 have a buffering effect when it descends between the top block 7, reducing the impact force damage of the stamping die 4 to the forming die 5.

Claims

1. An extrusion device for metal stamping dies, comprising a frame (1), a mounting plate (2), a first cylinder (3), a stamping die (4), and a forming die (5), wherein the first cylinder (3) is fixedly installed at the top of the inner cavity of the frame (1), the mounting plate (2) is fixedly connected to the bottom of the first cylinder (3), the two ends of the mounting plate (2) are slidably connected to the frame (1), the stamping die (4) is installed at the bottom of the mounting plate (2), and the forming die (5) is installed at the bottom of the inner cavity of the frame (1), characterized in that: The punch die (4) inner chamber bottom is slidably provided with a pressing plate (17), the punch die (4) inner side is provided with a movable slot (9), and the pressing plate (17) is located in the movable slot (9) inner chamber bottom, the movable slot (9) inner chamber top is provided with a pressing block (10), the mounting plate (2) top is provided with a second cylinder (11), and the second cylinder (11) bottom end penetrates the mounting plate (2) and is fixed to the pressing block (10) top, the movable slot (9) inner chamber bottom is provided with a sliding slot (18) on both sides, the pressing plate (17) both ends are fixedly connected with a sliding block (19), and the sliding block (19) is slidably located in the sliding slot (18) inner chamber top, the sliding slot (18) inner chamber bottom is provided with a first spring (12), and the first spring (12) is located at the bottom of the sliding block (19).

2. The extrusion device for hardware stamping die according to claim 1, characterized in that: The inner side of the forming die (5) is provided with a forming groove (6), and the forming groove (6) is provided with a top block (7) in the inner cavity.

3. The extrusion device for hardware stamping die according to claim 1, characterized in that: The bottom of the forming die (5) is provided with a damping column (8), and the damping column (8) is located at the bottom of the forming groove (6).

4. The extrusion device for hardware stamping die according to claim 3, characterized in that: The damping column (8) includes a sleeve (13), a piston rod (14) is movably inserted into the inner cavity of the sleeve (13), and the piston rod (14) top end penetrates the forming groove (6) and is fixedly connected with the top block (7), the piston rod (14) is provided with a second spring (15) on the outside, and the second spring (15) is located at the top of the sleeve (13), the inner cavity of the sleeve (13) is provided with a third spring (16), and the third spring (16) is located at the bottom end of the piston rod (14).

5. The extrusion device for hardware stamping die according to claim 1, characterized in that: The pressing block (10) is located at the top of the pressing plate (17), and the bottom surface structure of the pressing block (10) is the same as the top surface structure of the pressing plate (17).

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