CN215315147U

CN215315147U - Combined type drawing die/drawing stamping die structure

Info

Publication number: CN215315147U
Application number: CN202121563455.6U
Authority: CN
Inventors: 田新喜; 陈建明; 孟宪雷; 孙宏伟
Original assignee: Censtar Science & Technology Corp ltd
Current assignee: Censtar Science & Technology Corp ltd
Priority date: 2021-07-10
Filing date: 2021-07-10
Publication date: 2021-12-28
Anticipated expiration: 2031-07-10

Abstract

The utility model discloses a combined type drawing die/drawing stamping die structure which comprises an upper die, a lower die and a die frame, wherein the upper die comprises a working section and a non-working section, the working section is fixedly connected to the tail end of the non-working section, the lower die and the upper die are matched in shape and size, the working section comprises a hole guiding section and a forming section, the hole guiding section and the forming section are in a straight cylinder shape, and the top end face of the hole guiding section and the bottom end face of the forming section are fixedly connected through a common central axis. The stamping die aims to solve the technical problems that the stamping process is various, the production cost is too high, and the shape and the precision of a workpiece cannot be guaranteed due to single function of the die in the existing stamping process.

Description

Combined type drawing die/drawing stamping die structure

Technical Field

The utility model relates to the technical field of cold stamping processing, in particular to a combined type drawing die/drawing stamping die structure.

Background

The metal plate is a common raw material in daily production, a stamping process is often used for processing the metal plate, particularly a thinner plate, and the processing quality of the metal plate is often determined by two aspects of the material and the structure of a die when various sheet parts are processed by stamping equipment. At present, for stamping of a plurality of plate-shaped parts, the essence is to process various holes, such as round holes, square holes, strip holes, etc., on a metal plate, and the common processing method is divided into two steps: step one, applying pressure to a thin plate by using a hole leading die arranged on a press machine to lead holes on the thin plate; and a second step of applying pressure to the lead hole by using a forming die mounted on the press machine to generate plastic deformation, thereby obtaining the stretched shape of the workpiece.

In the prior art, two sets of dies are needed to process a workpiece in sequence, the production matching and processing cost is too high, and the twice processing needs repeated positioning, so that the shape and the size precision of the processed workpiece are influenced, and the problems of high processing difficulty and low production efficiency are caused.

Disclosure of Invention

The utility model aims to provide a combined type drawing die/drawing stamping die structure, and aims to solve the technical problems that the existing stamping process is complicated in working procedure, high in production cost and incapable of ensuring the shape and precision of a workpiece due to single function of the die.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the design is a combined type stretching die, which comprises an upper die, a lower die and a die carrier, wherein the upper die comprises a working section and a non-working section, the working section is fixedly connected to the tail end of the non-working section, the lower die is matched with the shape and the size of the upper die and is arranged, the working section comprises a hole leading section and a forming section, the hole leading section and the forming section are in a straight cylinder shape, and the top end face of the hole leading section and the bottom end face of the forming section are fixedly connected with the same central axis.

Preferably, the connection part of the hole guiding section and the forming section and the connection part of the working section and the non-working section are in a chamfer transition structure.

Preferably, the hole guiding section and the forming section are both one, and the diameter of the hole guiding section is smaller than that of the forming section.

The design is a drawing stamping die structure, which comprises a punch press, an upper die, a lower die, a die carrier and a workpiece to be processed, wherein the composite drawing die is fixedly connected to a workbench of the punch press, and the workpiece to be processed is correspondingly arranged in the die to form a matched plate stamping position.

Preferably, the thickness of the workpiece to be processed ranges from 0.8mm to 1.5 mm.

Preferably, the combined type drawing die and the workpiece to be processed are vertically and correspondingly arranged.

Compared with the prior art, the utility model has the main beneficial technical effects that:

1. the utility model improves the working efficiency and saves the production cost of the die.

2. The utility model avoids repeated positioning in the process of processing the workpiece, and greatly improves the size and shape precision of the workpiece.

3. The utility model simplifies the operation difficulty in the workpiece processing process.

Drawings

Fig. 1 is a schematic view of an upper mold structure of a composite drawing mold.

Fig. 2 is a schematic structural view of a composite drawing mold in a use state.

In the above figures, 1 is an upper die, 11 is a non-working section, 12 is a working section, 121 is a guiding hole section, 122 is a forming section, 2 is a lower die, 3 is a punch press, 31 is a punch press working table, 4 is a workpiece to be processed, 5 is a positioning pin, 6 is a sliding block, 7 is a working block, 8 is a die carrier, 81 is a pressing guide sleeve, 82 is an elastic block, 83 is a spring, 84 is a pressing plate, and 85 is a side pressing block.

Detailed Description

The following examples are intended to illustrate the present invention in detail and should not be construed as limiting the scope of the present invention in any way.

In the description of the present invention, it is to be understood that the orientations or positional relationships indicated as referring to the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings only for the convenience of describing technical solutions and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Example 1: the utility model provides a tensile mould of combined type, refers to fig. 1, includes mould 1, lower mould 2, and mould carrier 8 goes up mould 1 and includes inoperative section 11 and working section 12, inoperative section 11 and the 12 coupling parts of working section carry out the round chamfer and handle, and chamfer department carries out the smoothness and handles, and the mould of being convenient for breaks away from the construction spare fast after punching a hole and accomplishing.

The upper die working section 12 further comprises a cylindrical hole guiding section 121 and a forming section 122, the hole guiding section 121 and the forming section 122 are both straight cylinders, the hole guiding section 121 and the hole punching section 122 can be set into other shapes according to the punching shape, the top end face of the hole guiding section 121 is fixedly connected with the bottom end face of the forming section 122, the hole guiding section and the hole punching section share the same central axis, the diameter of the hole guiding section 21 is smaller than that of the forming section 22, and the upper die working section 12 is in a straight cylindrical step shape; the connecting part of the hole guiding section 121 and the forming section 122 is chamfered, the chamfer is smooth, the shape and the precision of punching can be ensured to be more accurate in the punching process, the workpiece cannot be fractured due to the overlarge cross sectional area of the working section 12 of the die, and the production efficiency of the workpiece is ensured. When a large hole is machined, in order to ensure the shape and precision of the punched hole and the overall integrity of a workpiece, two or more hole guiding sections 121 can be additionally arranged, the diameters of the hole guiding sections 121 are sequentially increased from bottom to top, when the workpiece is machined, the hole guiding sections 121 guide holes downwards, the hole guiding sections are gradually increased to be in pore-forming transition finally, and finally, the forming section 122 is used for machining the hole to obtain a finished workpiece; the shape and the size of the lower die 2 are matched and correspondingly arranged with the upper die working section 12 to form a matched plate stamping position. This utility model discloses go up mould working section 12 and collect and draw hole and shaping in an organic whole, be the independent mould for drawing hole among the prior art, shaping, not only saved the manufacturing cost of mould, more simplified the process, improved work efficiency.

A drawing and punching die structure is shown in figure 2 and comprises a punch 3, an upper die 1, a lower die 2 and a workpiece 4 to be processed,

the upper die is the upper die of the composite stretching die, the upper die 1 is installed in an inner hole at the upper part of the die frame by using a material pressing guide sleeve 81, an elastic block 82, a spring 83, a pressing plate 84 and the like, and the upper die can repeatedly slide and move back and forth along the inner hole at the upper part of the die frame within a certain range. The lower die is fixed in the inner hole at the lower part of the die frame by using a side pressing block 85. The central lines of the two are completely coincident with the central line of the upper and lower mounting holes of the die. The workpiece 4 to be processed is fixed on the working table 31 of the punch press through a positioning pin 5.

During punching, the central axes of the upper die working section 12, the workpiece to be processed 4 and the lower die 2 are superposed with each other to form a matched punching position, the utility model is matched with a cold punching die to process holes with stretching requirements, and the workpiece to be processed is a steel plate, an aluminum plate and a copper plate with the thickness ranging from 0.8mm to 1.5 mm.

The operation and use method of the drawing compound die is as follows:

the die is fixed on a workbench of a punch 3 by using bolts, a working block 7 is arranged on the lower plane of a punch slide block 6, and the tool is arranged at a die fixing position. And a workpiece 4 to be processed is arranged on the tool.

During punching, a workpiece 4 to be processed is positioned by abutting against the positioning pin 5, and the punch press sliding block 6 and the working block 7 move downwards; the upper die 1 is driven by the punch press slide block 6 to slide downwards; the material pressing guide sleeve firstly presses a workpiece 4 to be processed, and then the upper die 1 punches a workpiece lead hole on the lower die 2; and then the upper die 1 continues to descend to enable the workpiece to generate plastic deformation, and further the workpiece is obtained.

The workpiece is continuously pressed by the pressing guide sleeve, the slide block of the punch rises, the slide block 6 and the working block 7 rise, the upper die also rises upwards under the action of the elasticity of the elastic block 82, and the plastic deformation part of the workpiece hooped on the upper die is removed by the upper die 1 by the elasticity of the elastic block 82; then the pressing guide sleeve 81 rises under the elastic force of the spring 83 until the upper die 1 is completely separated from the workpiece and reaches the designed height; and finally, taking away the workpiece to finish the whole machining process.

And then the other workpiece is sent into the die to carry out the next processing process, and the steps are carried out in a reciprocating way.

While the utility model has been described in detail with reference to the drawings and examples, it will be understood by those skilled in the art that various changes in the details of the embodiments and various changes in the details of construction and materials may be made therein without departing from the spirit of the utility model and without departing from the scope of the utility model.

Claims

1. The utility model provides a tensile mould of combined type, includes mould, lower mould and die carrier, it includes working section and inoperative section to go up the mould, working section fixed connection be in the tail end of inoperative section, the lower mould with go up mould shape, size phase-match setting, its characterized in that, the working section is including drawing hole section and shaping section, it is straight cylindrical with the shaping section to draw hole section, just draw hole section top terminal surface and shaping section bottom terminal surface central axis fixed connection altogether.

2. The drawing die set according to claim 1, wherein the hole-guiding section and the forming section connecting portion, and the working section and the non-working section connecting portion are all in a chamfered transition structure.

3. The composite drawing die of claim 1, wherein the hole guiding section and the forming section are both one, and the diameter of the hole guiding section is smaller than that of the forming section.

4. A drawing and stamping die structure comprises a punch press, an upper die, a lower die, a die carrier and a workpiece to be processed, and is characterized in that the combined drawing die in claim 1 is fixedly connected to a workbench of the punch press, and the workpiece to be processed is correspondingly arranged in the die to form a matched plate stamping position.

5. The drawing die structure according to claim 4, wherein the thickness of the work to be processed is 0.8mm to 1.5 mm.

6. The drawing die structure as recited in claim 4, wherein the composite drawing die is disposed vertically corresponding to the workpiece to be processed.