CN109047514B

CN109047514B - Connecting mechanism for guide post and forming plate in thermal forming stamping die

Info

Publication number: CN109047514B
Application number: CN201810550216.3A
Authority: CN
Inventors: 宋振勇; 陈天龙
Original assignee: Zhejiang Zhizao Thermal Forming Technology Co ltd
Current assignee: Zhejiang Zhizao Thermal Forming Technology Co ltd
Priority date: 2018-05-31
Filing date: 2018-05-31
Publication date: 2020-07-03
Anticipated expiration: 2038-05-31
Also published as: CN109047514A

Abstract

The invention provides a connecting mechanism of a guide post and a forming plate in a hot forming stamping die, and belongs to the technical field of machinery. It has solved prior art and has had the poor problem of stability. This coupling mechanism of guide post and profiled sheeting among thermoforming stamping die, thermoforming stamping device include the frame, the lower mould body, guide post and profiled sheeting, the guide post lower extreme links firmly in the frame, the lower mould body is cylindricly and lower mould body cover on the guide post, form inside one-tenth die cavity for the cavity down between mould body and the guide post, the profiled sheeting is located guide post upper end department, this coupling mechanism includes the recessed locating hole in guide post upper end, above-mentioned profiled sheeting lower part has convex location head and inlays in above-mentioned locating hole department, the buffer board subassembly has between profiled sheeting and the guide post. This coupling mechanism of guide post and profiled sheeting among thermoforming stamping die stability is high.

Description

Connecting mechanism for guide post and forming plate in thermal forming stamping die

Technical Field

The invention belongs to the technical field of machinery, and relates to a connecting mechanism of a guide post and a forming plate in a hot forming stamping die.

Background

The hot stamping forming is a part processing mode, firstly, a blank is heated to a certain temperature, then a stamping machine is used for stamping in a corresponding die, and pressure maintaining quenching is carried out, so that a material forming method which can obtain a required shape and simultaneously realize phase change of a metal material is realized.

Hot stamping is widely used in automotive body processing and has the following advantages: the obtained car body parts are ultrahigh-strength; the weight of the vehicle body can be reduced; the safety and the comfort of the vehicle body can be improved; the stamping formability is improved; the dimensional accuracy of the part is improved; the surface hardness, dent resistance and corrosion resistance can be improved; the tonnage requirement of the punching machine is reduced.

However, the lower die body is frequently subjected to a stamping action during the forming process of the workpiece, and the lower die body is easily damaged after long-term use.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provide a connecting mechanism for a guide post and a forming plate in a hot forming stamping die, which has a compact structure and high stability.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a coupling mechanism of guide post and shaping board among thermoforming stamping die, thermoforming stamping device includes the frame, the lower mould body, guide post and shaping board, the guide post lower extreme links firmly in the frame, the lower mould body is cylindricly and lower mould body cover on the guide post, form inside one-tenth die cavity for the cavity down between mould body and the guide post, the shaping board is located guide post upper end department, a serial communication port, this coupling mechanism includes the recessed locating hole in guide post upper end, above-mentioned shaping board lower part has convex location head and inlays in above-mentioned locating hole department, the buffer board subassembly has between shaping board and the guide post.

Through this coupling mechanism with the profiled sheeting stable connection in guide post upper end, the work piece mainly bears above-mentioned punching press power through the profiled sheeting in stamping forming process, because the profiled sheeting adopts the material preparation that intensity is high, consequently, it can effectively improve the life of mould. Of course, the forming plate can be replaced independently after being damaged, and the use cost of the die is effectively reduced.

Particularly, the positioning hole and the positioning head are matched to enable the forming plate to be stably connected to the guide post. The buffer plate assembly can play a certain buffer role, and the rigid contact between the stamping head and the die is avoided when a workpiece is formed.

In the connecting mechanism of the guide column and the forming plate in the thermal forming stamping die, the positioning head is matched with the positioning hole and is integrated with the forming plate.

In the connecting mechanism of the guide post and the forming plate in the thermal forming stamping die, the edge of the forming plate is provided with a convex edge which is in an annular protrusion shape, and the convex edge is buckled at the upper end of the guide post.

The convex edge is buckled at the upper end of the guide post, so that the connection stability between the forming plate and the guide post can be further improved.

In the connecting mechanism of the guide post and the forming plate in the thermal forming stamping die, the convex edge and the forming plate are of an integrated structure.

In the coupling mechanism of guide post and profiled sheeting in foretell thermoforming stamping die, the buffer board subassembly includes plate body one, plate body two and plate body three, and above-mentioned plate body one and plate body three are wooden material, and above-mentioned plate body two is rubber materials, and above-mentioned plate body two is compressed tightly between plate body one and plate body three.

The first plate body and the third plate body have enough strength, the second plate body has enough toughness, and the combined buffer plate component has enough strength and can also properly play a certain buffering role.

In the connecting mechanism of the guide post and the forming plate in the thermal forming stamping die, a plurality of hemispherical convex buffer heads are arranged on two sides of the second plate body.

In the connecting mechanism of the guide post and the forming plate in the thermal forming stamping die, the buffer heads are circumferentially and uniformly distributed by taking the center of the plate body as a reference.

In the connecting mechanism of the guide post and the forming plate in the thermal forming stamping die, a circle of buffer heads uniformly distributed in the circumferential direction form a buffer unit, and the number of the buffer units is at least three and the buffer units are arranged from the inside to the outside.

The plurality of buffer heads can improve the buffer performance of the buffer plate component.

In the connecting mechanism of the guide post and the forming plate in the thermal forming stamping die, the spring is further arranged in the positioning hole, two ends of the spring respectively act on the guide post and the positioning head, and the forming plate has the tendency of moving upwards and separating from the buffer plate component under the elastic force action of the spring.

This connection forms two cushions, specifically:

during stamping operation, the spring is firstly stressed, and a first buffer is formed under the action of the elastic force of the spring. After the forming plate moves downwards under the action of the stamping head, the buffer plate assembly is stressed to form a second buffer.

It can be seen that this significantly improves the cushioning properties.

In the connecting mechanism of the guide post and the forming plate in the thermal forming stamping die, the lower end of the positioning head is provided with a concave spring seat, and the upper end of the spring is embedded in the spring seat.

The spring end is stabilized by the spring seat.

Compared with the prior art, this coupling mechanism of guide post and profiled sheeting among thermoforming stamping die is because the profiled sheeting is stable to be connected in the guide post upper end, consequently, among the punching press operation process, the profiled sheeting is main atress spare, can effectively improve its stability. In addition, the forming plate can be independently replaced after being damaged, and the use cost of the die is lower.

Meanwhile, a first buffer is formed under the action of the spring, a second buffer is formed under the action of the buffer plate assembly, and the structure can avoid rigid contact between stamping and a die in the stamping process, so that the stability of the stamping die is further improved.

In addition, the main parts are positioned between the forming plate and the guide post, the structure is compact, and the high-strength steel plate has high practical value.

Drawings

Fig. 1 is a schematic cross-sectional view of a connecting mechanism of a guide post and a forming plate in the thermoforming press mold.

Fig. 2 is a schematic top view of a second plate body in the connecting mechanism of the guide post and the forming plate in the hot forming stamping die.

In the figure, 1, a frame; 2. a lower die body; 3. a guide post; 3a, positioning holes; 4. forming a plate; 4a, a positioning head; 4a1, spring seats; 4b, a convex edge; 5. a first plate body; 6. a second plate body; 6a, a buffer head; 7. a third plate body; 8. a spring.

Detailed Description

As shown in fig. 1, the thermal forming and stamping device includes a frame 1, a lower mold body 2, a guide post 3 and a forming plate 4, wherein the lower end of the guide post 3 is fixedly connected to the frame 1, the lower mold body 2 is cylindrical, the lower mold body 2 is sleeved on the guide post 3, a forming cavity with a cavity inside is formed between the lower mold body 2 and the guide post 3, and the forming plate 4 is located at the upper end of the guide post 3.

The connecting mechanism of the guide post and the forming plate in the thermal forming stamping die comprises a concave positioning hole 3a at the upper end of the guide post 3, a convex positioning head 4a is arranged at the lower part of the forming plate 4, the positioning head 4a is embedded in the positioning hole 3a, and a buffer plate assembly is arranged between the forming plate 4 and the guide post 3.

The positioning head 4a is matched with the positioning hole 3a, and the positioning head 4a and the forming plate 4 are of an integrated structure.

The edge of the forming plate 4 is provided with a convex edge 4b which is in a ring shape and protrudes, and the convex edge 4b is buckled at the upper end of the guide post 3.

The convex edge 4b and the forming plate 4 are of an integrated structure.

The buffer board subassembly includes plate body one 5, plate body two 6 and plate body three 7, and above-mentioned plate body one 5 and plate body three 7 are wooden material, and above-mentioned plate body two 6 is rubber materials, and above-mentioned plate body two 6 is compressed tightly between plate body one 5 and plate body three 7.

As shown in fig. 2, two sides of the second plate body 6 are respectively provided with a plurality of buffer heads 6a protruding in a hemispherical shape.

The buffer heads 6a are circumferentially and uniformly distributed by taking the center of the second plate body 6 as a reference.

The round of buffering head 6a that circumference equipartition set up forms a buffer unit, buffer unit's quantity is three at least and above-mentioned buffer unit is by built-in outer setting.

The positioning hole 3a is internally provided with a spring 8, two ends of the spring 8 act on the guide post 3 and the positioning head 4a respectively, and the forming plate 4 has the tendency of moving upwards and separating from the buffer plate component under the elastic force action of the spring 8.

The lower end of the positioning head 4a is provided with a concave spring seat 4a1, and the upper end of the spring 8 is embedded in the spring seat 4a 1.

Claims

1. A connecting mechanism of a guide post and a forming plate in a thermal forming stamping die is characterized in that the connecting mechanism comprises a positioning hole which is concave at the upper end of the guide post, a convex positioning head is arranged at the lower part of the forming plate and embedded in the positioning hole, and a buffer plate assembly is arranged between the forming plate and the guide post;

the positioning head is matched with the positioning hole and is of an integrated structure with the forming plate;

the edge of the forming plate is provided with a convex edge which is in an annular convex shape, and the convex edge is buckled at the upper end of the guide column;

the convex edge and the forming plate are of an integrated structure;

the buffer board assembly comprises a first board body, a second board body and a third board body, wherein the first board body and the third board body are both made of wood materials, the second board body is made of rubber materials, and the second board body is tightly pressed between the first board body and the third board body.

2. The connecting mechanism for the guide post and the forming plate of the hot forming stamping die as claimed in claim 1, wherein the two sides of the second plate body are provided with a plurality of buffer heads protruding in a hemispherical shape.

3. The connecting mechanism for the guide post and the forming plate of the hot forming stamping die as claimed in claim 2, wherein the buffer heads are uniformly distributed circumferentially based on the center of the plate body.

4. The connecting mechanism for the guide post and the forming plate in the hot forming stamping die as claimed in claim 3, wherein a circle of buffer heads uniformly distributed in the circumferential direction forms a buffer unit, the number of the buffer units is at least three, and the buffer units are arranged from inside to outside.

5. The connecting mechanism for the guide post and the forming plate in the hot forming stamping die as claimed in claim 4, wherein a spring is further arranged in the positioning hole, two ends of the spring respectively act on the guide post and the positioning head, and the forming plate has a tendency of moving upwards and separating from the buffer plate component under the action of the elastic force of the spring.

6. The connecting mechanism for connecting a guide post and a forming plate in a thermoforming stamping die as claimed in claim 5, wherein the lower end of the positioning head has a recessed spring seat, and the upper end of the spring is embedded in the spring seat.