CN111112415A

CN111112415A - Blank pressing forming assembly structure

Info

Publication number: CN111112415A
Application number: CN202010041443.0A
Authority: CN
Inventors: 曹光伟; 郑芳; 段华平; 钱飞
Original assignee: Ningbo Kdpr Tool Technology Co ltd
Current assignee: Ningbo Kdpr Tool Technology Co ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-05-08

Abstract

The invention discloses a blank pressing forming assembly structure which comprises an upper punch and a lower punch, wherein the upper punch is connected with a striking rod punch, the lower punch is arranged on a wedge assembly, the wedge assembly is arranged in a concave template, one end of the wedge assembly corresponds to the position of the striking rod punch, and one end of the lower punch is connected with the other end of the wedge assembly. The impact rod drift that the upper punch is connected can move simultaneously with the upper punch, because the position of slide wedge subassembly one end is corresponding with the position of impact rod drift, so can contact with the one end of the slide wedge subassembly on the die block when impact rod drift downstream, and drive the slide wedge subassembly action, make the lower punch upward movement of slide wedge subassembly other end, thereby stretch out the die block, act on the product simultaneously with the upper punch, carry out the blank pressing and handle, the planar roughness of product has been guaranteed promptly, can make the blank pressing height on the upper and lower two sides of product the same again.

Description

Blank pressing forming assembly structure

Technical Field

The invention relates to the technical field of stamping die components, in particular to a blank holder forming assembly structure.

Background

Stamping is a processing method with high production efficiency and low material consumption. The stamping process is suitable for production of large-batch part products, is convenient for realizing mechanization and automation, has higher production efficiency, and simultaneously, the stamping production can not only strive to realize production with less waste materials and no waste materials, but also can fully utilize the leftover materials even if the leftover materials exist in certain conditions. In the stamping forming process, the product is often subjected to edge pressing treatment according to requirements.

In the edge pressing structure in the existing stamping die, in order to avoid the phenomenon that a plurality of bent parts are easy to form and clamp on the die in the die after the edge pressing work is finished, therefore, the lower punch is generally arranged higher than the surface of the female die, and the two sides of the product are extruded by the cooperation of the lower punch and the upper punch, so as to achieve the effect of pressing the edges, but the structure is obtained, because the lower punch is higher than the surface of the female die, the lower surface of the lower punch is firstly acted by the upward acting force of the lower punch when the die is closed in the forming process of a product, at this time, the upper punch does not start to press the edge of the product, so the upper punch and the lower punch cannot work simultaneously, which results in uneven product forming and possible bending, and furthermore, because the upper punch and the lower punch can not act on the product at the same time, the heights of the upper and lower side edges of the product can hardly be consistent.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the upward forming assembly structure is not easy to clamp a product on a die, and can enable a lower punch and an upper punch to act on the product simultaneously.

The technical scheme adopted by the invention is as follows: the utility model provides a blank pressing shaping subassembly structure, it includes upper punch, lower punch, the upper punch is connected with the striking rod drift, the lower punch sets up on the slide wedge subassembly, the slide wedge subassembly sets up in the die block board, the one end of slide wedge subassembly with the position of striking rod drift is corresponding, the one end of lower punch is connected with the other end of slide wedge subassembly.

After adopting the structure, compared with the prior art, the blank pressing forming assembly structure has the following advantages: the impact rod drift that the upper punch is connected can move simultaneously with the upper punch, because the position of slide wedge subassembly one end is corresponding with the position of impact rod drift, so can contact with the one end of the slide wedge subassembly on the die block when impact rod drift downstream, and drive the slide wedge subassembly action, make the lower punch upward movement of slide wedge subassembly other end, thereby stretch out the die block, act on the product simultaneously with the upper punch, carry out the blank pressing and handle, the planar roughness of product has been guaranteed promptly, can make the blank pressing height on the upper and lower two sides of product the same again.

Preferably, the wedge component comprises a first sliding block, a second sliding block and a third sliding block, one end of the first sliding block corresponds to the position of the striking rod punch, the other end of the first sliding block is a first inclined surface, the cross section of the second sliding block is trapezoidal, a second inclined surface arranged at one end of the second sliding block is in sliding connection with the first inclined surface, a third inclined surface arranged at the other end of the second sliding block is in sliding connection with a fourth inclined surface arranged at one end of the third sliding block, and the lower punch is connected with the upper end of the third sliding block. The first sliding block is used for being in contact with the punching rod punching head and moving downwards along with the movement of the punching rod punching head, in the moving process of the first sliding block, the movement of the first sliding block in the vertical direction is converted into the movement of the second sliding block in the horizontal direction through the matching between the first inclined surface and the second inclined surface on the second sliding block, the second sliding block moves, in the same time, the horizontal movement of the second sliding block is converted into the movement of the third sliding block in the vertical direction through the matching between the third inclined surface and the fourth inclined surface of the third sliding block, and finally the lower punching head is driven to move upwards.

Preferably, the first slider and the second slider are arranged at a right angle, and the second slider and the third slider are arranged at a right angle. The arrangement ensures that the motion transmission among the first slide block, the second slide block and the third slide block is stable and reliable, and ensures that the motion amount of the upper punch and the lower punch is equal after the striking rod punch is contacted with the first slide block.

Preferably, a fifth inclined plane symmetrical to the fourth inclined plane is arranged at the other end of the third slider, and the first slider and the second slider are also symmetrically arranged on the fifth inclined plane and are slidably connected to the fifth inclined plane. Such setting can make the both sides of third slider receive the same motion effect simultaneously for the motion of third slider is more stable, can not take place the condition of slope, just also makes the lower punch can not take place to incline because of the slope of third slider at the in-process that rises, ensures that blank pressing position is accurate.

Preferably, the lower end of the third sliding block is connected with a reset mechanism, the reset mechanism comprises a pull rod bolt, a spring, a sleeve and a cushion block, the sleeve penetrates through the concave template, one end of the sleeve is abutted to the third sliding block, the other end of the sleeve is connected with the cushion block, the spring sleeve is arranged on the outer side of the sleeve, one end of the spring is abutted to the concave template, the other end of the spring is abutted to the cushion block, and the bolt penetrates through the cushion block and the sleeve and is connected with the third sliding block. When the edge pressing action is carried out, the third sliding block moves upwards under the pressure of the striking rod punch, the pull rod bolt is pulled to move, and the spring is compressed; when one-time edge pressing action is finished, the pull rod bolt and the third slide block are driven to move downwards under the action of the elastic force of the spring when the striking rod punch head starts to move upwards, and then the pull rod bolt and the third slide block return to the original position; the arrangement enables the edge pressing action to be repeated, and ensures the continuity of the edge pressing work.

Preferably, the lower end of the concave template is provided with a lower die base, the lower die base is provided with a hole, and the resetting mechanism is arranged in the hole of the lower die base. The lower die holder not only serves as a basic base of the whole blank pressing forming assembly structure, and meanwhile, an accommodating space is provided for the reset mechanism, and the spring can be guaranteed not to displace when acting, so that the stability of movement is guaranteed.

Preferably, the upper end of the concave template is further provided with a pressing plate, and one end of the pressing plate extends to the upper side of the first sliding block and is abutted against the upper end of the first sliding block. The pressure plate is used for limiting the action of the first slide block when the reset mechanism performs reset action, and preventing the first slide block from separating from the concave template or causing faults due to overlarge lifting distance.

Preferably, a punch retainer plate is further arranged at the upper end of the third slide block. The male die fixing plate is used for fixing the lower punch and the third slide block, so that the lower punch and the third slide block are stably and firmly connected and cannot incline.

Preferably, a stop block is further arranged in the cavity plate, and the stop block is detachably connected between the cavity plate and the first sliding block and is in sliding connection with the outer side face of the first sliding block. The setting of dog is in order to prevent that first slider from taking place wearing and tearing when the action between with the die board, or makes its damage to the pressure that the die board produced, is convenient for maintain slider and dog, simultaneously, if take place to damage also need not change whole die board, only need to change the dog and both can resume normal function.

Preferably, the die plate is further provided with a punch guide plate, the punch guide plate is provided with a through hole matched with the lower punch in size and shape, and the lower punch penetrates through the through hole. The punch head guide plate can guide product materials to enable the product materials to pass smoothly, and can guide the action of the lower punch head to ensure the accurate position of the lower punch head, and meanwhile, the third slide block and the punch fixing plate can be limited by the punch head guide plate, so that the lifting position of the third slide block and the punch fixing plate is prevented from being too much.

Drawings

FIG. 1 is a schematic cross-sectional view of the construction of one binder molding assembly of the present invention (arrows indicate direction of movement).

FIG. 2 is a schematic cross-sectional view of a binder assembly configuration of the present invention (arrows indicate direction of movement) during binder application.

Fig. 3 is a partially enlarged view of the region "a" in fig. 2.

Wherein, 1, an upper punch; 1.1, a rod punching head; 2. a lower punch; 3. a cavity plate; 3.1, a stop block; 4. a cam assembly; 4.1, a first slide block; 4.2, a second slide block; 4.3, a third slide block; 5. a reset mechanism; 5.1, sleeving a sleeve; 5.2, cushion blocks; 5.3, a spring; 5.4, bolts; 5.5, pressing a plate; 6. a lower die holder; 7. a male die fixing plate; 8. a punch guide plate; 9. and (5) producing the product.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

According to the attached drawings 1-2 of the specification, the invention provides a blank pressing forming assembly structure, which comprises an upper punch 1 and a lower punch 2, wherein the upper punch 1 is connected with a striking rod punch 1.1, the striking rod punch 1.1 moves along with the upper punch 1, the lower punch 2 is arranged on a wedge assembly 4, the wedge assembly 4 is arranged in a cavity plate 3, the wedge assembly 4 comprises a first slide block 4.1, a second slide block 4.2 and a third slide block 4.3, the first slide block 4.1 is in sliding connection with a second inclined plane at one end of the second slide block 4.2 through a first inclined plane, the third inclined plane at the other end of the second slide block 4.2 is in sliding connection with a fourth inclined plane of the third slide block 4.3, the position of the first slide block 4.1 corresponds to the position of the striking rod punch 1.1, and the third slide block 4.3 is connected with the lower punch 2. The first sliding block 4.1 and the second sliding block 4.2 are right-angled, and the second sliding block 4.2 and the third sliding block 4.3 are right-angled. The section of the third sliding block 4.3 is an equilateral trapezoid, and a first sliding block 4.1 and a second sliding block 4.2 are further symmetrically arranged on the other side of the third sliding block 4.3 by using the center line of the third sliding block 4.3.

The upper punch 1 and the lower punch 2 can be changed in shape, number and position according to the requirement of the product 9, and the upper punch 1 and the lower punch 2 in the embodiment are respectively provided in two.

The upper end of the third slide block 4.3 is also provided with a punch retainer 7 for fixing the upper punch 1 and the third slide block 4.3, so that the lower punch 2 is stable and firm and can not incline.

Still be equipped with dog 3.1 in the cavity board 3, dog 3.1 sets up on the side that cavity board 3 and first slider 4.1 contacted, prevent that first slider 4.1 from taking place wearing and tearing when the action between with cavity board 3, or to the pressure that cavity board 3 produced make its damage, the setting of dog 3.1 can be convenient for maintain and maintain, as long as change dog 3.1 when the dog 3.1 takes place to damage both can continue to use, and need not change whole cavity board 3.

Still be equipped with canceling release mechanical system 5 below slide wedge subassembly 4, canceling release mechanical system 5 includes sleeve pipe 5.1, cushion 5.2, spring 5.3, bolt 5.4, and wherein the one end of sleeve pipe 5.1 is contradicted in the below of third slider 4.3, and the other end is connected with cushion 5.2, and spring 5.3 cover is established in the sleeve pipe 5.1 outside, and one end is contradicted with the below of die board 3, and the other end is contradicted with cushion 5.2, and bolt 5.4 passes cushion 5.2 and sleeve pipe 5.1 to be connected with third slider 4.3. A lower die holder 6 is further arranged below the concave die plate 3, a hole is formed in the lower die holder 6, and the reset mechanism 5 is accommodated in the hole.

The concave die plate 3 is also connected with a pressing plate 5.5, one end of the pressing plate 5.5 extends to the upper part of the first sliding block 4.1, and when the first sliding block 4.1 is at the initial position, the upper end of the first sliding block is abutted to the lower end face of the pressing plate 5.5. In this embodiment, a groove is further formed in a portion where the upper end of the first slider 4.1 abuts against the pressing plate 5.5, so that the state of the first slider abutting against the pressing plate at the initial position is firm and stable. Meanwhile, a boss or a limiting block can be arranged on the striking rod punch 1.1, and after the striking rod punch 1.1 moves downwards for a certain distance, the boss or the limiting block is in contact with the upper end face of the pressing plate 5.5, so that the striking rod punch 1.1 is limited, and the pressing distance is prevented from being too large.

The female die plate 3 is further provided with a punch guide plate 8, and the punch guide plate 8 is arranged above the male die fixing plate 7 and used for guiding the movement of the lower punch 2 and ensuring the accurate blank pressing position.

According to the attached drawings 1-3 of the specification, the working principle is that when the upper punch 1 moves downwards, the striking rod punches 1.1 on two sides are driven to move downwards together, the striking rod punches 1.1 are in contact with the upper end face of the first slide block 4.1 of the wedge component 4 before the upper punch 1 and push the first slide block 4.1 to move downwards, the first slide block 4.1 converts the movement of the first slide block 4.1 in the vertical direction into the movement of the second slide block 4.2 in the horizontal direction through the action between the first inclined face and the second inclined face of the second slide block 4.2 in the downward moving process, the second slide block 4.2 converts the movement of the second slide block 4.2 in the horizontal direction into the movement of the third slide block 4.3 in the vertical direction through the action between the third inclined face and the fourth inclined face of the third slide block 4.3 in the moving process, so that the third slide block 4.3 moves upwards to drive the lower punch 2 to move upwards, and the upper punch 2 and the upper punch 1 and the lower punch 2 act on the upper punch 1 and the upper punch 9 simultaneously, the product 9 is subjected to a beading process. In the process of upward movement of the third slider 4.3, the bolt 5.4 and the cushion block 5.2 are driven to move together, so that the spring 5.3 is compressed, after the blank holding is completed, the upper punch 1 starts to reset and moves upward, at this time, the third slider 4.3 is pulled downward under the action of the spring 5.3 of the resetting mechanism 5, and simultaneously the second slider 4.2 and the first slider 4.1 move to the original position, when the first slider 4.1 moves to be in contact with the pressing plate 5.5, the pressing plate 5.5 limits the first slider 4.1 to stop moving, the upper punch 1 and the striking rod punch 1.1 continue to move upward until returning to the original position, and at this time, a cycle of the blank holding action is completed.

The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the independent claims of the present invention are within the scope of the present invention.

Claims

1. The utility model provides a blank pressing shaping subassembly structure, it includes upper punch (1), lower punch (2), its characterized in that, upper punch (1) is connected with and beats pole drift (1.1), lower punch (2) set up on slide wedge subassembly (4), slide wedge subassembly (4) set up in die cavity board (3), the one end of slide wedge subassembly (4) with the position of beating pole drift (1.1) is corresponding, the one end of lower punch (2) with the other end of slide wedge subassembly (4) is connected.

2. The blank holder forming assembly structure according to claim 1, wherein the wedge assembly (4) comprises a first slide block (4.1), a second slide block (4.2) and a third slide block (4.3), one end of the first slide block (4.1) corresponds to the punch (1.1) of the punch rod, the other end of the first slide block (4.1) is a first inclined surface, the cross section of the second slide block (4.2) is trapezoidal, a second inclined surface arranged at one end of the second slide block (4.2) is in sliding connection with the first inclined surface, a third inclined surface arranged at the other end of the second slide block (4.2) is in sliding connection with a fourth inclined surface arranged at one end of the third slide block (4.3), and the lower punch (2) is connected with the upper end of the third slide block (4.3).

3. Edge-pressing moulding assembly according to claim 2, characterized in that said first (4.1) and second (4.2) slides are arranged at right angles to each other, and said second (4.2) and third (4.3) slides are arranged at right angles to each other.

4. The blank holder molding assembly structure according to claim 3, wherein the other end of the third slide block (4.3) is provided with a fifth inclined plane symmetrical to the fourth inclined plane, and the first slide block (4.1) and the second slide block (4.2) are also symmetrically arranged on the fifth inclined plane and are slidably connected with the fifth inclined plane.

5. Blank holder molding assembly structure according to claim 2, characterized in that the lower end of the third slide (4.3) is connected with a return mechanism (5), the reset mechanism (5) comprises a draw bar bolt (5.4), a spring (5.3), a sleeve (5.1) and a cushion block (5.2), the sleeve (5.1) penetrates through the concave template (3), one end of the sleeve (5.1) is abutted against the third sliding block (4.3), the other end of the sleeve (5.1) is connected with the cushion block (5.2), the spring (5.3) is sleeved on the outer side of the sleeve (5.1), one end of the spring (5.3) is propped against the concave template (3), the other end of the spring (5.3) is propped against the cushion block (5.2), the bolt (5.4) penetrates through the cushion block (5.2) and the sleeve (5.1) and is connected with the third sliding block (4.3).

6. The blank holder molding assembly structure according to claim 5, wherein the lower end of the cavity plate (3) is provided with a lower die holder (6), the lower die holder (6) is provided with a hole, and the resetting mechanism (5) is arranged in the hole of the lower die holder (6).

7. Edge pressing forming assembly structure according to claim 5, wherein a pressing plate (5.5) is further arranged at the upper end of the cavity plate (3), and one end of the pressing plate (5.5) extends to the upper side of the first sliding block (4.1) and is abutted against the upper end of the first sliding block (4.1).

8. Blank holder molding assembly arrangement according to claim 2, characterized in that the upper end of the third slide (4.3) is also provided with a punch retainer (7).

9. Edge pressing forming assembly structure according to claim 2, wherein a stop (3.1) is further arranged in the cavity plate (3), and the stop (3.1) is detachably connected between the cavity plate (3) and the first slide block (4.1) and is in sliding connection with the outer side surface of the first slide block (4.1).

10. The blank holder forming assembly structure according to claim 2, wherein the cavity plate (3) is further provided with a punch guide plate (8), the punch guide plate (8) is provided with a through hole matched with the lower punch (2) in size and shape, and the lower punch (2) passes through the through hole.