Large-stroke sliding block mechanism in precise progressive die

Abstract

The utility model relates to a large-stroke sliding block mechanism in a precise progressive die. The large-stroke sliding block mechanism comprises an upper die and a lower die, the upper die comprises an upper die base, an upper clamping plate and a stripper plate which are sequentially stacked from top to bottom, and a first stripper insert core and a second stripper insert core are arranged on the stripper plate at intervals. The lower die comprises a lower die base and a lower die plate which are sequentially stacked from bottom to top, a first floating assembly and a second floating assembly are arranged in the lower die base and the lower die plate in a spaced mode, and a first lower die insert core sliding block and a second lower die insert core are arranged above the first floating assembly and the second floating assembly respectively. A third lower die insert core sliding block is arranged between the first lower die insert core sliding block and the second lower die insert core, and the abutting faces where the first lower die insert core sliding block, the third lower die insert core sliding block and the second lower die insert core abut against each other are inclined dovetail faces. The sliding block is large in movement stroke, and a mechanical structure is stable and reliable during high-speed movement; the bending device is particularly suitable for bending large copper bar products, the forming process is stable and reliable, and the bending device has practical value and economic benefits.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch die technical field, concretely relates to a big stroke slider mechanism in precision progressive die. BACKGROUND

[0002] With the development of modern industry, the stamping technology has been rapidly developed, and various connector products appear in the automobile connector, especially in recent years, the rapid development of new energy vehicles, and the use of copper bar products is more and more widely. Figure 3 The transmission rod 2' provided with the input end of the cylinder 4' drives the lower die pin 1' to move, but the cylinder structure will have the limitation of reliability and speed, and the development cost is higher. UTILITY MODEL CONTENT

[0003] The utility model discloses a big stroke slider mechanism in precision progressive die.

[0004] The utility model discloses a big stroke slider mechanism in precision progressive die.

[0005] A big stroke slider mechanism in precision progressive die, including upper die, and the lower die being installed on the upper die top,

[0006] The upper die includes upper die seat, upper clamping plate and stripping plate from top to bottom in turn, first stripping pin and second stripping pin are arranged on the stripping plate at intervals,

[0007] The lower die includes lower die seat and lower die plate from bottom to top in turn, first floating assembly and second floating assembly are arranged in the lower die seat and the lower die plate at intervals, first lower die pin slider and second lower die pin are arranged above the first floating assembly and the second floating assembly respectively, third lower die pin slider is arranged between the first lower die pin slider and the second lower die pin, and the abutting surface of the first lower die pin slider, the third lower die pin slider and the second lower die pin is inclined dovetail surface.

[0008] Further, the first floating assembly includes first stop screw, first spring and first floating pin arranged from bottom to top in turn, and the first lower die pin slider is slidably connected with the first floating pin.

[0009] Further, the second floating assembly includes second stop screw, second spring and second floating pin arranged from bottom to top in turn, and the second lower die pin is fixedly connected with the second floating pin.

[0010] Further, the first lower die sub-sliders and the second lower die sub are inverted right-angled trapezoidal shapes, and the spacing between them increases from top to bottom.

[0011] Further, the third lower die sub-slider between the first lower die sub-slider and the second lower die sub is a square isosceles trapezoidal shape.

[0012] Further, when the large-stroke slider mechanism is in the mold opening state, the first lower die sub-slider and the second lower die sub are respectively higher than the third lower die sub-slider under the action of the first floating assembly and the second floating assembly.

[0013] Further, an upper backing plate is further arranged between the upper die seat and the upper clamping plate.

[0014] Further, a stop plate is further arranged between the upper clamping plate and the stripper plate.

[0015] Further, a lower backing plate is further arranged between the lower die seat and the lower die plate.

[0016] Further, a lower backing foot and a lower supporting plate are sequentially fixedly connected below the lower die seat.

[0017] Compared with the prior art, the slider movement stroke of the large-stroke slider mechanism is large, and the mechanical structure is stable and reliable when moving at high speed; it is particularly suitable for bending of large copper bar products, and the forming process is stable and reliable, and has good practical value and economic benefits. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the large-stroke slider mechanism in the mold opening state in the embodiment;

[0019] Figure 2 It is a schematic view of the large-stroke slider mechanism in the mold closing state in the embodiment;

[0020] Figure 3 It is a schematic view of the prior art;

[0021] The reference signs in the drawing show: 1-upper die seat; 2-upper backing plate; 3-upper clamping plate; 4-stop plate; 5-stripper plate; 6-lower die plate; 7-lower backing plate; 8-lower die seat; 9-first stripper sub; 10-first lower die sub-slider; 11-first floating pin; 12-first spring; 13-first stop screw; 14-third lower die sub-slider; 15-second stop screw; 16-second spring; 17-second floating pin; 18-second lower die sub; 19-second stripper sub; 1'-lower die sub; 2'-transmission rod; 3'-cylinder backing block; 4'-cylinder. DETAILED DESCRIPTION

[0022] The utility model will be explained in detail below in combination with the drawings and specific embodiments. The embodiment is implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.

[0023] Embodiment

[0024] The embodiment provides a large-stroke slider mechanism in a precision progressive die, and specific structures are shown in Figures 1-2 , comprising an upper die, and a lower die installed above the upper die;

[0025] The upper die comprises an upper die seat 1, an upper cushion plate 2, an upper clamping plate 3, a stop plate 4 and a stripper plate 5 which are sequentially stacked from top to bottom, and first and second stripper pins 9 and 19 are arranged on the stripper plate 5 at intervals;

[0026] The lower die comprises a lower die seat 8, a lower cushion plate 7 and a lower die plate 6 which are sequentially stacked from bottom to top, first and second floating assemblies are arranged in the lower die seat 8 and the lower die plate 6 at intervals, first and second lower die pin sliders 10 and 18 are arranged above the first and second floating assemblies respectively, a third lower die pin slider 14 is arranged between the first and second lower die pin sliders 10 and 18, and the abutting surfaces of the first and third lower die pin sliders 10 and 14 and the second lower die pin slider 18 which abut with each other are inclined dovetail surfaces. Optionally, in the embodiment, a lower cushion and a lower supporting plate are sequentially fixedly connected below the lower die seat 8.

[0027] Please refer to Figures 1-2 , in the embodiment, the first floating assembly comprises first stop screws 13, first springs 12 and first floating pins 11 which are sequentially arranged from bottom to top, and the first lower die pin slider 10 is in sliding connection with the first floating pin 11.

[0028] Please refer to Figures 1-2 , in the embodiment, the second floating assembly comprises second stop screws 15, second springs 16 and second floating pins 17 which are sequentially arranged from bottom to top, and the second lower die pin slider 18 is in fixed connection with the second floating pin 17.

[0029] Please refer to Figures 1-2In the embodiment, the first lower die insert slider 10 and the second lower die insert 18 are inverted right-angled trapezoidal shapes, and the distance between them increases from top to bottom. The third lower die insert slider 14 between the first lower die insert slider 10 and the second lower die insert 18 is a square isosceles trapezoidal shape. When the large-stroke slider mechanism is in the mold opening state, the first lower die insert slider 10 and the second lower die insert 18 are respectively higher than the third lower die insert slider 14 under the action of the first floating assembly and the second floating assembly. Wherein, the first lower die insert slider 10 and the third lower die insert slider 14 can slide on the lower die plate 6 under the action of external force.

[0030] Working principle:

[0031] During the mold closing process, the first material removal insert 9 and the second material removal insert 19 of the upper die first contact the first lower die insert slider 10 and the second lower die insert 18 of the lower die, causing the first lower die insert slider 10 to move downward and leftward at the same time, and the second lower die insert 18 moves vertically downward. The second lower die insert slider 18 moves vertically downward while driving the third lower die insert slider 14 to move leftward by means of the inclined dovetail. The third lower die insert slider 14 moves leftward while pushing the first lower die insert slider 10 to move leftward by means of the inclined dovetail. Finally, the leftward movement stroke of the first lower die insert slider 10 is the sum of the leftward movement stroke of the first lower die insert slider 10 pressed by the first upper die material removal insert 9 and the leftward movement stroke of the first lower die insert slider 10 pushed by the third lower die insert slider 14, forming a 1+1 effect.

[0032] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to form equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments without departing from the technical solution of the present application, and according to the technical essence of the present application, still belong to the protection scope of the present application.

Claims

1. A large stroke slide mechanism in a precision progressive die, characterized by, The upper die and the lower die installed above the upper die; The upper die comprises an upper die seat (1), an upper clamping plate (3) and a stripper plate (5) stacked in sequence from top to bottom, and the stripper plate (5) is provided with a first stripper pin (9) and a second stripper pin (19) at intervals. The lower die comprises a lower die seat (8) and a lower die plate (6) stacked in sequence from bottom to top, and the lower die seat (8) and the lower die plate (6) are provided with a first floating assembly and a second floating assembly at intervals, and the first floating assembly and the second floating assembly are respectively provided with a first lower die pin slider (10) and a second lower die pin (18) above them, and a third lower die pin slider (14) is arranged between the first lower die pin slider (10) and the second lower die pin (18), and the abutting surfaces of the first lower die pin slider (10), the third lower die pin slider (14) and the second lower die pin (18) abutting with each other are inclined dovetail surfaces.

2. A large stroke slide mechanism in a precision progressive die according to claim 1, wherein The first floating assembly comprises a first stop screw (13), a first spring (12) and a first floating pin (11) arranged in sequence from bottom to top, and the first lower die pin slider (10) is in sliding connection with the first floating pin (11).

3. A large stroke slide mechanism in a precision progressive die as claimed in claim 1, wherein, The second floating assembly comprises a second stop screw (15), a second spring (16) and a second floating pin (17) arranged in sequence from bottom to top, and the second lower die pin (18) is in fixed connection with the second floating pin (17).

4. A large stroke slide mechanism in a precision progressive die according to claim 1, wherein The first lower die pin slider (10) and the second lower die pin (18) are inverted right-angled trapezoidal in shape, and the distance between them increases in sequence from top to bottom.

5. A large stroke slide mechanism in a precision progressive die as claimed in claim 1, wherein, The third lower die pin slider (14) between the first lower die pin slider (10) and the second lower die pin (18) is square isosceles trapezoidal in shape.

6. A large stroke slide mechanism in a precision progressive die as claimed in claim 1, wherein, When the large-stroke slider mechanism is in the mold opening state, the first lower die pin slider (10) and the second lower die pin (18) are respectively higher than the third lower die pin slider (14) under the action of the first floating assembly and the second floating assembly.

7. A large stroke slide mechanism in a precision progressive die as claimed in claim 1 wherein, An upper backing plate (2) is further arranged between the upper die seat (1) and the upper clamping plate (3).

8. A large stroke slide mechanism in a precision progressive die as claimed in claim 1, wherein, A stop plate (4) is further arranged between the upper clamping plate (3) and the stripper plate (5).

9. A large stroke slide mechanism in a precision progressive die as claimed in claim 1, wherein, A lower backing plate (7) is further arranged between the lower die seat (8) and the lower die plate (6).

10. A large stroke slide mechanism in a precision progressive die as claimed in claim 1, wherein, A lower backing foot and a lower supporting plate are sequentially fixedly connected below the lower die seat (8).

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