Three-dimensional precision stamping die

Abstract

The utility model relates to the technical field of stamping dies, and discloses a three-dimensional precision stamping die which comprises a workbench, a fixed die is detachably installed on the inner wall of the top of the workbench through a hydraulic clamp, and an auxiliary stripping assembly is arranged at the bottom of the workbench. The auxiliary stripping assembly is arranged, the driving motor drives the disc to rotate continuously, the ejector rod is driven to do reciprocating motion in the vertical direction in cooperation with driving of the connecting rod and limiting guiding of the limiting frame, and therefore impact force from bottom to top is generated on materials in the mold cavity of the fixed mold through the ejector rod; through transmission of a driving gear and a driven gear, a bevel gear cylinder drives a flat bevel gear and a rotating disc to rotate relatively slowly, so that an ejector rod which continuously impacts up and down does circular motion on the horizontal plane, the operation range of impact demolding of the ejector rod is widened, the stress uniformity of materials in a mold cavity of a fixed mold is guaranteed, and the demolding quality is improved. And the production quality of stamping materials produced by the device is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch press die technical field, concretely is a kind of three-dimensional precision punch press die. BACKGROUND

[0002] Punching, it is under room temperature using the die installed on press to material exert pressure, make it produce separation or plastic deformation, to obtain the required parts of a pressure processing method, punch press die refers to, in the stamping process, let material device form certain shape's die, to meet the needs of user.

[0003] According to the three-dimensional precision punch press die (announcement number: CN216263034U) of publicizing, in the above application, by external controller opens electric telescopic rod telescoping, electric telescopic rod drives the up-down sliding of first lifting plate, reaches the purpose of facilitating material taking, solves the difficult material taking of existing three-dimensional precision punch press die, leading to its use when cannot quickly take out finished product, affects processing efficiency Problem.

[0004] But the above-mentioned equipment in actual use process, since punch press die utilizes the impact of punch to workpiece in die cavity to realize production, this is easy to make material in die cavity appear clamping or jamming in stamping process, when unloading, it can not be conveniently and quickly demoulded due to the resistance of part position, affect the production efficiency of die;In view of this, we propose a kind of three-dimensional precision punch press die. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of three-dimensional precision punch press die to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of three-dimensional precision punch press die, including workbench, the top inner wall of the workbench is detachably installed with fixed die by hydraulic fixture, the upper surface of the workbench is fixedly installed with top frame, the top inner wall of the top frame is provided with punch press module, the bottom of the workbench is provided with auxiliary material removal assembly, and the auxiliary material removal assembly includes:

[0007] Electric push rod, one end of the electric push rod is fixedly installed on the bottom outer wall of workbench, the other end of the electric push rod is fixedly installed with push frame, the upper surface of the push frame is rotatably installed with rotary table, the upper surface of the rotary table is fixedly installed with driving motor, the output end of the driving motor is fixedly installed with disc, the side wall of the disc is hinged with one end of connecting rod, the other end of the connecting rod is hinged with top rod, and the upper surface of the rotary table is fixedly installed with limiting frame.

[0008] The bevel gear is coaxially fixedly connected with the rotating disc, a bevel gear cylinder is movably installed outside the output end of the driving motor, a driving gear is fixedly installed through the output end of the driving motor, and a driven gear is rotatably installed on the inner surface of the bevel gear cylinder.

[0009] Preferably, the top of the pushing frame is provided with a T-shaped structure, and a T-shaped sliding groove is formed in the inner wall of the bottom of the workbench and is matched with the top of the pushing frame, so that the pushing frame can move linearly along the bottom surface of the workbench under the pushing of the electric push rod.

[0010] Preferably, a guide cavity matched with the outer surface of the ejector rod is formed in the inner wall of the limiting frame, and the ejector rod is arranged in the guide cavity, so that the ejector rod can move reciprocatingly in the vertical direction under the cooperation of the connecting rod when the driving motor drives the disc to rotate.

[0011] Preferably, the bevel gear cylinder is internally provided with a hollow cavity, the driving gear and the driven gear are arranged in the hollow cavity, a tooth pattern matched with the driven gear and achieving transmission is arranged on the arc-shaped inner wall of the hollow cavity, and the driving gear, the driven gear and the bevel gear cylinder form a planetary gear deceleration structure when the driving motor is started and drives the output end to rotate.

[0012] Preferably, the top of the ejector rod is provided with a deflection assembly, the deflection assembly comprises a movable rod, the movable rod is slidably installed on the inner wall of the top of the ejector rod, a return spring is fixedly connected between the bottom end of the movable rod and the inner wall of the ejector rod, a rotating block is rotatably installed on the top end inner wall of the movable rod, a volute spring is sleeved on the bottom end arc-shaped outer wall of the rotating block, a rotating rod is rotatably installed on the top inner wall of the rotating block, a push rod is fixedly installed through the rotating rod, a coil spring is sleeved on the end arc-shaped outer wall of the rotating rod, and a convex ball is fixedly installed on the top end of the push rod.

[0013] Preferably, the rotating block comprises a top section and a bottom section, the diameter of the bottom section is smaller than that of the top section, and the bottom section is arranged at the top inner wall of the movable rod, a circular hole matched with the outer diameter of the bottom section is formed in the top inner wall of the movable rod, and the ends of the volute spring are fixedly connected with the arc-shaped inner wall of the circular hole and the arc-shaped outer wall of the bottom section, so that the rotating block can rotate at the top end of the movable rod.

[0014] Preferably, a fan-shaped groove is formed in the top inner wall of the rotating block, and the rotating rod and the push rod are arranged in the fan-shaped groove, so that the rotating rod can drive the push rod to rotate with the maximum rotation angle, thereby avoiding that the push rod and the convex ball cannot cooperate with the movement of the ejector rod to eject the material in the cavity of the fixed mold due to the too large rotation angle.

[0015] Compared with the prior art, the three-dimensional precision stamping die has the following beneficial effects:

[0016] 1、The three-dimensional precision stamping die, by being provided with the auxiliary stripping assembly, the driving motor drives the disc to continuously rotate, cooperates with the driving of the connecting rod and the limiting of the limiting frame, so as to drive the ejector rod to reciprocate in the vertical direction, and then the ejector rod generates an upward impact force on the material in the die cavity of the fixed die, at the same time, through the transmission of the driving gear and the driven gear, the bevel gear cylinder drives the bevel gear and the rotating disc to relatively slowly rotate, so that the continuously up-and-down impact ejector rod makes circular motion on the horizontal plane, thereby improving the working range of the impact stripping of the ejector rod, ensuring the uniformity of the stress of the material in the die cavity of the fixed die, and ensuring the production quality of the stamping material produced by the device.

[0017] 2、The three-dimensional precision stamping die, by being provided with the deflection assembly, in the process of continuously reciprocating up and down of the ejector rod, due to the different positions of the convex ball and the material in the fixed die for ejection, under the rotatable of the rotating rod and the rotating block, the upward ejection force position distribution of the convex ball on the material is wider, so that the stripping of the material from the die cavity is more relaxed, and effectively avoids the deformation of the material caused by the impact on a single position, and ensures the production quality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main body structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the bottom view structure of the workbench of the utility model;

[0020] Figure 3 It is a schematic diagram of the pushing frame structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the auxiliary stripping assembly of the utility model;

[0022] Figure 5 It is a schematic diagram of the bevel gear cylinder of the utility model;

[0023] Figure 6 It is a schematic diagram of the sectional structure of the ejector rod and the movable rod of the utility model;

[0024] Figure 7 It is a schematic diagram of the sectional structure of the rotating block of the utility model.

[0025] In the figure: 1, workbench; 2, fixed die; 3, top frame; 4, stamping module; 5, auxiliary stripping assembly; 51, electric push rod; 52, push frame; 53, rotating disc; 54, driving motor; 55, disc; 56, connecting rod; 57, ejector pin; 58, limiting frame; 59, bevel gear; 510, bevel gear cylinder; 511, driving gear; 512, driven gear; 6, deflection assembly; 61, movable rod; 62, return spring; 63, rotating block; 64, volute spring; 65, rotating rod; 66, lever; 67, coil spring; 68, convex ball. DETAILED DESCRIPTION

[0026] As Figures 1-7 shown, the utility model provides a technical scheme: a kind of three-dimensional precision stamping die, including workbench 1, and fixed die 2 is detachably installed on the top inner wall of workbench 1 by hydraulic fixture, and top frame 3 is fixedly installed on the upper surface of workbench 1, and stamping module 4 is arranged on the top inner wall of top frame 3, and auxiliary stripping assembly 5 is arranged on the bottom of workbench 1, and auxiliary stripping assembly 5 includes electric push rod 51, push frame 52, rotating disc 53, driving motor 54, disc 55, connecting rod 56, ejector pin 57, limiting frame 58, bevel gear 59, bevel gear cylinder 510 and driving gear 511 and driven gear 512.

[0027] In an embodiment of the utility model, one end of electric push rod 51 is fixedly installed on the bottom outer wall of workbench 1, and the other end of electric push rod 51 is fixedly installed with push frame 52, and the upper surface of push frame 52 is rotatably installed with rotating disc 53, and the upper surface of rotating disc 53 is fixedly installed with driving motor 54, and the output end of driving motor 54 is fixedly installed with disc 55, and one end of connecting rod 56 is hinged on the side wall of disc 55, and the other end of connecting rod 56 is hinged with ejector pin 57, and the upper surface of rotating disc 53 is fixedly installed with limiting frame 58, and bevel gear 59 is fixedly installed at the shaft center of rotating disc 53, and the output end outside of driving motor 54 is movably installed with bevel gear cylinder 510, and the output end of driving motor 54 is fixedly installed with driving gear 511, and driven gear 512 is rotatably installed on the inner surface of bevel gear cylinder 510.

[0028] Further, the upper surface of workbench 1 is provided with accommodating groove of size adaptation with fixed die 2, to cooperate hydraulic fixture to provide more stable clamping force for fixed die 2, guarantee its stability in stamping process, simultaneously, stamping module 4 includes hydraulic telescopic device and stamping head fixedly installed at the movable end of hydraulic telescopic device, and stamping module 4 is arranged directly above fixed die 2, so that under the impact of hydraulic telescopic device, stamping head carries out stamping work to material placed in the die cavity of fixed die 2, makes it produce required shape, specifically, the bottom of accommodating groove is provided in open shape, to enable auxiliary stripping assembly 5 to realize stripping work to material in the die cavity from the lower side of workbench 1.

[0029] Please refer to the attached drawings of the specification Figures 2-5 , the number of electric push rods 51 is provided with two groups, and the two groups of electric push rods 51 are mirror image arranged on both sides of the vertical central axis of the push frame 52, and the top of the push frame 52 is provided with a T shape, and a T-shaped sliding groove is formed on the inner wall of the bottom of the workbench 1, which is matched with the top of the push frame 52. Under the pushing of the electric push rod 51, the push frame 52 can move linearly along the bottom surface of the workbench 1, so as to control the push frame 52 to move away from the bottom of the fixed die 2 during the stamping process, and after the stamping process is completed, the push frame 52 is controlled to move to the bottom of the fixed die 2, which ensures the safe use of the auxiliary stripping assembly 5. Further, the shaft of the rotating disc 53 is provided with a rotating shaft, and the rotating disc 53 is rotatably connected with the push frame 52 through the rotating shaft. Further, a guide cavity matched with the outer surface of the jacking rod 57 is formed in the inner wall of the limiting frame 58, and the jacking rod 57 is arranged in the guide cavity. When the driving motor 54 drives the disc 55 to rotate, the jacking rod 57 can be driven to reciprocate in the vertical direction by cooperating with the connecting rod 56, so as to generate an upward impact force on the material in the cavity of the fixed die 2, thereby assisting the stripping work of the stamping material.

[0030] In addition, the bevel gear 59 is engaged with the bevel gear cylinder 510 and realizes transmission, and the inside of the bevel gear cylinder 510 is provided with a hollow cavity, and the driving gear 511 and the driven gear 512 are arranged in the hollow cavity. Specifically, the arc-shaped inner wall of the hollow cavity is provided with a tooth pattern engaged with the driven gear 512 and realizing transmission. When the driving motor 54 is started and drives the output end to rotate, the driving gear 511, the driven gear 512 and the bevel gear cylinder 510 form a planetary gear reduction structure. Under the drive of the driving motor 54, the transmission of the driving gear 511 and the driven gear 512 is matched to make the bevel gear cylinder 510 rotate at a lower speed than the rotating speed of the disc 55, and then drive the bevel gear 59 and the rotating disc 53 to rotate slowly on the push frame 52, so that the jacking rod 57 which impacts up and down makes circular motion in the horizontal plane, thereby improving the working range of the impact stripping of the jacking rod 57, ensuring the uniformity of the stress of the material in the cavity of the fixed die 2, and ensuring the production quality of the stamping material produced by the device.

[0031] Please refer to the attached drawings of the specification Figures 6-7The top of the ejector rod 57 is provided with a deflection assembly 6, the deflection assembly 6 comprises a movable rod 61, the movable rod 61 is slidably installed on the inner wall of the top of the ejector rod 57, the bottom end of the movable rod 61 is fixedly connected with the inner wall of the ejector rod 57 through a reset spring 62, the top end of the movable rod 61 is rotatably installed with a rotating block 63, the bottom end of the rotating block 63 is sleeved with a volute spring 64, the top inner wall of the rotating block 63 is rotatably installed with a rotating rod 65, the rotating rod 65 is fixedly installed with a push rod 66, the end arc outer wall of the rotating rod 65 is sleeved with a coil spring 67, and the top end of the push rod 66 is fixedly installed with a convex ball 68.

[0032] In the embodiment of the utility model, the top inner wall of the ejector rod 57 is provided with a rectangular cavity matched with the movable rod 61, and the movable rod 61 is slidably installed in the rectangular cavity, and the two ends of the reset spring 62 are fixedly connected with the bottom end of the movable rod 61 and the bottom inner wall of the rectangular cavity, so as to ensure the impact effect of the ejector rod 57 and the movable rod 61 on the material in the mold cavity of the fixed mold 2, avoid the jamming of the movement of the ejector rod 57, further, the rotating block 63 comprises a top section and a bottom section, the diameter of the bottom section is smaller than that of the top section, and the bottom section is arranged at the top inner wall of the movable rod 61, a circular hole matched with the outer diameter of the bottom section is formed in the top inner wall of the movable rod 61, and the two ends of the volute spring 64 are fixedly connected with the arc inner wall of the circular hole and the arc outer wall of the bottom section, so that the rotating block 63 can rotate at the top end of the movable rod 61 and reset under the elastic force of the volute spring 64.

[0033] Meanwhile, the top inner wall of the rotating block 63 is provided with a fan-shaped groove, and the rotating rod 65 and the push rod 66 are arranged in the fan-shaped groove, the fan-shaped groove is arranged to enable the rotating rod 65 to drive the push rod 66 to rotate with the maximum rotation angle, so as to avoid the push rod 66 and the convex ball 68 from rotating too much to cooperate with the movement of the ejector rod 57 to eject the material in the mold cavity of the fixed mold 2, further, the left and right inner walls of the fan-shaped groove are provided with circular grooves with diameters larger than the outer diameter of the coil spring 67, and the two ends of the coil spring 67 are fixedly connected with the arc outer wall of the rotating rod 65 and the arc inner wall of the circular groove, so that the push rod 66 can remain vertical under the elastic force of the coil spring 67 in the initial state, and then in the process of the continuous up-down reciprocating movement of the ejector rod 57, the convex ball 68 ejects the material at different positions in the fixed mold 2, the rotating rod 65 and the rotating block 63 can rotate, the upward ejection force position of the convex ball 68 on the material is more widely distributed, so that the material is more easily demolded from the mold cavity, and the deformation of the material caused by the impact on a single position is effectively avoided, and the production quality of the device is ensured.

[0034] In the utility model, when using, the material needing stamping processing is placed in the die cavity of the fixed die 2, at the moment, the stamping module 4 is controlled to carry out stamping processing work to the material in the fixed die 2, after stamping processing is completed, the electric push rod 51 is controlled to elongate to push the push frame 52 to the just below the fixed die 2, at the moment, the driving motor 54 is controlled to start to drive the disc 55 to continuously rotate, is guided to drive the top rod 57 to reciprocate in the vertical direction in cooperation with the driving of connecting rod 56 and the location of limiting frame 58, and then the material in the die cavity of fixed die 2 is impacted from bottom to top by top rod 57, at the same time, the transmission of driving gear 511 and driven gear 512 makes bevel gear cylinder 510 drive flat bevel gear 59 and turntable 53 relatively slow rotation, so that the top rod 57 that is constantly impacted up and down makes circular motion on the horizontal plane, thereby the working range of impact stripping of top rod 57 is improved, the stress uniformity of the material in the die cavity of fixed die 2 is guaranteed, and the production quality of the stamping material produced by the device is guaranteed.

[0035] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to the general technical personnel in the technical field. Therefore, the modifications or improvements without departing from the spirit of the utility model are within the protection scope of the utility model.

Claims

1. A three-dimensional precision stamping die, comprising a workbench (1), a fixed die (2) is detachably installed on the top inner wall of the workbench (1) through a hydraulic clamp, a top frame (3) is fixedly installed on the upper surface of the workbench (1), and a stamping module (4) is arranged on the top inner wall of the top frame (3), characterized in that: The bottom of the workbench (1) is provided with an auxiliary stripping assembly (5), which comprises: An electric push rod (51) is fixedly installed at one end on the bottom outer wall of the workbench (1), and a push frame (52) is fixedly installed at the other end of the electric push rod (51); a rotating disc (53) is rotatably installed on the upper surface of the push frame (52); a driving motor (54) is fixedly installed on the upper surface of the rotating disc (53); a disc (55) is fixedly installed on the output end of the driving motor (54); one end of a connecting rod (56) is hingedly connected to the side wall of the disc (55); a top rod (57) is hingedly connected to the other end of the connecting rod (56); and a limiting frame (58) is fixedly installed on the upper surface of the rotating disc (53). A bevel gear (59) is coaxially and fixedly connected with the rotating disc (53); a bevel gear cylinder (510) is movably installed on the output end outer side of the driving motor (54); and a driving gear (511) is penetratingly and fixedly installed on the output end of the driving motor (54).

2. The three-dimensional precision stamping die according to claim 1, characterized in that: The top of the push frame (52) is provided in a T shape, and a T-shaped sliding groove is formed in the bottom inner wall of the workbench (1) and is matched with the top of the push frame (52).

3. The three-dimensional precision stamping die of claim 1, wherein: A guide cavity matched with the outer surface of the top rod (57) is formed in the inner wall of the limiting frame (58), and the top rod (57) is arranged inside the guide cavity.

4. The three-dimensional fine press die according to claim 1, characterized in that: A hollow cavity is arranged in the inside of the bevel gear cylinder (510), and the driving gear (511) and the driven gear (512) are arranged inside the hollow cavity; and a tooth pattern matched with the driven gear (512) and achieving transmission is arranged on the arc-shaped inner wall of the hollow cavity.

5. The three-dimensional fine press die according to claim 1, characterized in that: A deflection assembly (6) is arranged on the top of the top rod (57), and the deflection assembly (6) comprises a movable rod (61) slidingly installed on the top inner wall of the top rod (57); a return spring (62) is fixedly connected between the bottom end of the movable rod (61) and the inner wall of the top rod (57); a rotating block (63) is rotatably installed on the top end inner wall of the movable rod (61); a volute spring (64) is sleeved on the bottom end arc-shaped outer wall of the rotating block (63); a rotating rod (65) is rotatably installed on the top inner wall of the rotating block (63); a push rod (66) is penetratingly and fixedly installed on the rotating rod (65); a coil spring (67) is sleeved on the end arc-shaped outer wall of the rotating rod (65); and a convex ball (68) is fixedly installed on the top end of the push rod (66).

6. The three-dimensional fine press die according to claim 5, wherein: The rotating block (63) comprises a top section and a bottom section, the diameter of the bottom section is smaller than that of the top section, and the bottom section is arranged at the top inner wall of the movable rod (61); a circular hole matched with the outer diameter of the bottom section is formed in the top inner wall of the movable rod (61); and the two ends of the volute spring (64) are fixedly connected with the arc-shaped inner wall of the circular hole and the arc-shaped outer wall of the bottom section, respectively.

7. The three-dimensional fine press die according to claim 5, wherein: The top inner wall of the rotating block (63) is provided with a fan-shaped slot, and the rotating rod (65) and the pushing rod (66) are arranged inside the fan-shaped slot.

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