KR101761567B1 - Modling device for shear test of mold - Google Patents

Abstract

The present invention relates to a shear durability test mold apparatus for mold wear resistance-service life test. The shear durability test mold apparatus for the mold wear resistance-service life test comprises: a lower mold; and a lower mold disposed above a lower mold including a shear test part to perform a shear durability test for a mold wear resistance-service life while the lower mold is driven upwards and downwards. The lower mold comprises: a dual sample setting block in which a first sample as a heat treatment special steel (SKD11) and a second sample as a commercial cold roller dies steel (DC53) are loaded in a dual manner; a first supporting block to support the dual sample setting block; a second supporting block to support the dual sample setting block on a side opposite the first support block; and a piercing hole processing guide block connected to the first supporting block having a plurality of guide pins formed on a surface thereof to form a space in which the piercing hole is processed by a mutual action with the upper mold.

Description

Technical Field [0001] The present invention relates to a mold apparatus for shearing endurance test,

The present invention relates to a shearing durability test mold apparatus for evaluating the wear life of a mold, and more particularly, it relates to a compact and efficient structure, which enables a complex shear durability test to pierce a piercing hole, And more particularly to a shearing endurance test mold apparatus for evaluating the wear life of a mold.

Recently, steel plate for automobile body has been applied ultra high strength steel plate with maximum tensile strength of 1470 MPa for operator safety.

Accordingly, in the automobile industry, the wear resistance of the mold material or the life time of the mold material is being verified.

The test of the wear resistance or the life of the mold material can test the durability of the mold by reproducing the working process at the actual press production.

However, existing technology does not have a technology for a mold apparatus that can pierce a piercing hole at the same time as a complex shear durability test.

Korea Patent Office Application No. 10-2005-0129297

It is an object of the present invention to provide a shearing endurance test die apparatus for evaluating the wear life of a die which can improve the efficiency of the process by allowing a piercing hole to be drilled simultaneously with a complex shear endurance test due to a compact and efficient structure .

The above object is achieved by a method of manufacturing a semiconductor device, An upper mold disposed at the upper portion of the lower mold and having a shear end test portion for carrying out a shear endurance test for evaluating the wear life of the mold while being driven up / down with respect to the lower mold; An upper pressing force measuring unit for measuring a pressing force of the upper mold against the lower mold; And a controller for receiving the signal of the upper pressing force measuring unit and controlling the operation of the external notifying unit, wherein the lower mold includes a first specimen as a heat treated special steel and a dual specimen as a second specimen as a general cold die steel, Setting block; A first support block supporting the dual specimen setting block; A second support block supporting the dual specimen setting block on the opposite side of the first support block; And a guide block connected to the first support block, the guide block having a plurality of guide pins formed on a surface of the guide block, the guide block having a piercing hole for processing the pierced hole by interaction with the upper mold, For example.

And a pair of connection blocks connected to each other at a front end of the piercing hole processing guide block.

A gap for adjusting the gap of the dual specimen setting block may be formed between the dual specimen setting block and the first support block.

And a pair of dummy blocks connected to both ends of the second support block.

And a pair of rear end blocks connected to the pair of dummy blocks.

A first ramp is formed between the second support blocks, a horizontal path connected to the first ramp is formed between the pair of dummy blocks, and between the pair of rear blocks, 2 ramps may be formed.

The inclination of the second ramp may be steeper than the first ramp.

A plurality of elastic guides may be provided on the circumferential surface of the lower mold and a plurality of guide bosses may be provided on the circumferential surface of the upper mold to be coupled with the plurality of elastic guides.

The lower mold is a base plate made of stainless steel having a thickness of 100 mm to 150 mm, which is locked or unlocked to the bottom plate by a latch; A pair of first columns extending upwardly from the base plate and made of stainless steel having a thickness of 100 mm to 150 mm and a height of 500 mm to 600 mm; A first support plate supporting the upper end of the first column and having the same thickness and material as the base plate; A second support plate which is in contact with the first support plate and has the same thickness and material as the first support plate; A pair of second columns extending from the upper portion of the second support plate and made of stainless steel having a thickness of 100 mm to 150 mm and a height of 350 mm to 400 mm; A second support block, and a guide block for piercing the hole, wherein the second specimen setting block, the first support block, the second support block, and the guide block for piercing hole are mounted on the first column, As shown in FIG.

According to the present invention, it is possible to drill a piercing hole simultaneously with a complex shear durability test due to a compact and efficient structure, thereby improving the efficiency of the process.

1 is a sectional view of a shearing endurance test mold apparatus for evaluating the wear life of a mold according to an embodiment of the present invention.
Fig. 2 is a diagram showing one part of Fig. 1 as a dotted line. Fig.
3 is a top view of the lower mold.
Figure 4 is a schematic perspective view of Figure 3;
5 is a control block diagram of a shearing endurance test mold apparatus for evaluating the wear life in a mold according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention and to fully disclose the scope of the invention to a person having ordinary skill in the art to which the present invention belongs. And the present invention is only defined by the scope of the claims.

Thus, in some embodiments, well known components, well known operations, and well-known techniques are not specifically described to avoid an undesirable interpretation of the present invention.

Like reference numerals refer to like elements throughout the specification. And (used) terms used herein are for the purpose of illustrating embodiments and are not intended to limit the invention.

In the present specification, the singular form includes plural forms unless otherwise specified. Also, components and acts referred to as " comprising (or comprising) " do not exclude the presence or addition of one or more other components and operations.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs.

Also, commonly used predefined terms are not ideally or excessively interpreted unless they are defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a sectional view showing a part of the shearing endurance test mold apparatus for evaluating the wear life in a mold according to an embodiment of the present invention, FIG. 2 is a partly broken line, FIG. And Figure 4 is a schematic perspective view of Figure 3.

Referring to these drawings, the shearing endurance test mold apparatus for evaluating the wear life in the mold according to the present embodiment has a compact and efficient structure, so that a complex shear endurance test can be performed simultaneously with the piercing hole, And may include a lower mold 120 and a top mold 110 disposed at an upper portion of the lower mold 120. [

The lower mold 120 is fixed in position, while the upper mold 110 is driven up / down with respect to the lower mold 120 to carry out the evaluation of the wear life in the mold.

To this end, the upper mold 110 is provided with a shear test section 111. A punch (not shown) is provided in the shearing test section 111, so that a piercing hole can be formed in the specimen.

A plurality of elastic guides 171 are provided on the circumferential surface of the lower mold 120 so that the upper mold 110 is driven up and down on the lower mold 120. On the circumferential surface of the upper mold 110, And a plurality of guide bosses 172 are provided to be engaged with the elastic guides 171 of the guide rails. The elastic members 171a are engaged with the elastic guides 171, respectively.

In this embodiment, the lower mold 120 is locked or unlocked to the bottom plate 131 by the latch 132, and the base plate 120 is made of stainless steel having a thickness of 100 mm to 150 mm A pair of first columns 122 extending upwardly from the base plate 121 and made of stainless steel having a thickness of 100 mm to 150 mm and a height of 500 mm to 600 mm; A first support plate 123 supporting the upper end and having the same thickness and material as the base plate 121 and a second support plate 123 having the same thickness and material as the first support plate 123, A second support plate 124 and a pair of second columns 125 extending from the top of the second support plate 124 and made of stainless steel having a thickness of 100 mm to 150 mm and a height of 350 mm to 400 mm, 2 columns 125, the dual specimen setting block 141, the first And a block mounting plate 126 made of stainless steel having a thickness of 200 mm to 250 mm is formed as a place where the support block 143, the second support block 145, and the guide block 147 for piercing hole processing are mounted. can do.

At this time, the base plate 121 is made of stainless steel having a thickness of 100 mm to 150 mm. When the thickness of the base plate 121 is less than 100 mm, the lower die 120 may be shaken when the upper die 110 is pressed. It can be difficult.

The pair of first columns 122 are made of stainless steel having a thickness of 100 mm to 150 mm and a height of 500 mm to 600 mm. When the thickness is smaller than 100 mm, the lower die 120 can be shaken when the upper die 110 is pressed If the thickness is larger than 150 mm, processing may be difficult. If the height is less than 500 mm or more than 600 mm, the worker's working posture may be difficult.

The pair of second columns 125 are made of stainless steel having a thickness of 100 mm to 150 mm and a height of 350 mm to 400 mm. When the thickness is smaller than 100 mm, the lower die 120 can be shaken when the upper die 110 is pressed If the thickness is larger than 150 mm, processing may be difficult. If the height is lower than 350mm or higher than 400mm, the worker's working posture may be difficult.

The block mounting plate 126 is made of stainless steel having a thickness of 200 mm to 250 mm. If the thickness of the block mounting plate 126 is less than 200 mm, the lower mold 120 may be shaken or the dual specimen setting block 141, 1 support block 143, the second support block 145 and the guide block 147 for piercing holes may be deformed. If the thickness is larger than 250 mm, the processing may be difficult.

The dual specimen setting block 141 is configured such that the first specimen as the heat treated special steel SKD11 and the second specimen as the general cold die steel DC53 are mounted on the block mounting plate 126, ). ≪ / RTI > The first and second specimens are partially loaded on the dual specimen setting block 141 while being guided by a guide pin 148 on a guide block 147 for piercing the hole to be described later.

DC53 is a high hardness / high tensile universal cold die steel produced by DAIDO STEEL in Japan. It is known as a new material that completely complements the hardness and toughness of high temperature tempering which is a weak point of SKD11.

The first support block 143 is a block supporting the dual specimen setting block 141. Between the dual specimen setting block 141 and the first support block 143, a gap portion 152 for adjusting the gap of the dual specimen setting block 141 is formed. At this time, an adjusting bolt B is provided for adjusting the gap portion 152.

The second support block 145 is a block that supports the dual specimen setting block 141 on the opposite side of the first support block 143.

The piercing hole guide guide block 147 is connected to the first support block 143 and has a plurality of guide pins 148 formed on the surface thereof and a piercing hole (not shown) Respectively.

A pair of connection blocks 151 are provided at the front end of the piercing hole guide guide block 147 so as to be spaced apart from each other.

A pair of dummy blocks 154 are connected to both end portions of the second support block 145 and a pair of rear end blocks 156 are coupled to the pair of dummy blocks 154.

In this structure, a first ramp 161 is formed between the second support blocks 145, and a horizontal ramp 163 connected to the first ramp 161 is formed between the pair of dummy blocks 154 And a second ramp 162 connected to the horizontal path 163 is formed between the pair of rear end blocks 156. At this time, in the case of this embodiment, the inclination of the second ramp 162 may be formed more abruptly than the first ramp 161.

Therefore, the degree of damage or the degree of wear can be measured by placing the blank on the lower mold 120 and pressing the upper mold 110, and a piercing hole not shown on the guide block 147 for piercing holes can be formed.

According to the present invention having the structure and function as described above, it is possible to drill a piercing hole simultaneously with a complex shear endurance test due to its compact and efficient structure, thereby improving the efficiency of the process.

5 is a control block diagram of a shearing endurance test mold apparatus for evaluating the wear life in a mold according to another embodiment of the present invention.

Referring to this drawing, various sensors and cameras can be further equipped as peripheral structures in the shearing endurance test mold apparatus for evaluating the wear life of the mold according to the present invention.

A piercing hole formation confirmation unit 253, a burr shape detection unit 254 and an external notification unit 270 are provided on the upper surface of the main body 200. In this case, A controller 280 is provided for these controls.

The upper mold pressing force measuring unit 251 measures the pressing force of the upper mold 110 with respect to the lower mold 120. [ A measurement sensor or the like and may be directly mounted on the upper mold 110 or may be connected to the upper mold 110 from outside the upper mold 110. [

The dual material loading presence / absence detection unit 252 detects whether or not the dual material is loaded at a predetermined loading position. A dual material loading presence / absence detecting unit 252 may be applied through a camera or the like.

The piercing hole formation confirmation unit 253 detects whether or not a piercing hole is formed in the work. The piercing hole formation confirmation unit 253 may be applied through a camera or the like.

The burr shape detecting unit 254 senses the burr formed at the end of the material to be measured. A burr shape detecting unit 254 may be applied through a camera or the like.

The controller 280 determines whether or not the sensor 280 is mounted on the basis of the measurement or sensing signal of the top pressing force measurement unit 251, the dual material loading presence / absence sensing unit 252, the piercing hole formation confirmation unit 253, and the burr shape sensing unit 254 And controls the operation of the external notification unit 270. That is, if it is detected that the pressing force of the upper die 110 is smaller than the reference value, the dual material is not loaded, the piercing hole is not formed, or the burr is larger than the reference value, the controller 280 operates the external notification unit 270 The operator can be informed of the situation.

The controller 280 performing such a role may include a central processing unit 281 (CPU), a memory 282 (MEMORY), and a support circuit 283 (SUPPORT CIRCUIT).

The central processing unit 281 is configured to detect the presence or absence of the dual material loading presence / absence detection unit 252, the piercing hole formation confirmation unit 253 and the burr shape detection unit 254 in the present embodiment Or may be one of various computer processors that are industrially applicable to control the operation of the external notification unit 270 based on the detection signal.

The memory 282 (MEMORY) is connected to the central processing unit 281. The memory 282 may be a computer readable recording medium and may be located locally or remotely and may be any of various types of storage devices such as, for example, a random access memory (RAM), a ROM, a floppy disk, May be at least one or more memories.

The support circuit 283 (SUPPORT CIRCUIT) is coupled with the central processing unit 281 to support the typical operation of the processor. Such a support circuit 283 may include a cache, a power supply, a clock circuit, an input / output circuit, a subsystem, and the like.

In this embodiment, the controller 280 is connected to the control unit 280 through the control unit 280. The controller 280 controls the operation of the upper mold pressing force measurement unit 251, the dual material loading presence detection unit 252, the piercing hole formation confirmation unit 253 and the burr shape detection unit 254 And controls the operation of the external notification unit 270 based on the signal. At this time, the controller 280 is connected to the measurement or sensing signal of the upper pressing force measurement unit 251, the dual material loading presence / absence sensing unit 252, the piercing hole formation confirmation unit 253, and the burr shape sensing unit 254 A series of processes and the like for controlling the operation of the external notification unit 270 based on the received information can be stored in the memory 282. [ Typically, a software routine may be stored in memory 282. The software routines may also be stored or executed by other central processing units (not shown).

Although processes according to the present invention are described as being performed by software routines, it is also possible that at least some of the processes of the present invention may be performed by hardware. As such, the processes of the present invention may be implemented in software executed on a computer system, or in hardware such as an integrated circuit, or in combination of software and hardware.

Even if the present embodiment is applied, the efficiency of the process can be improved by allowing the piercing hole to be pierced simultaneously with the complex shear endurance test due to the compact and efficient structure.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. It is therefore intended that such modifications or alterations be within the scope of the claims appended hereto.

110: image forming part 111: shearing test part
120: lower mold 121: base plate
122: first column 123: first support plate
124: second support plate 125: second column
126: block mounting plate 131: bottom plate
132: Clasp 141: Dual specimen setting block
143: first support block 145: second support block
147: Guide block for piercing hole 148: Guide pin
151: connection block 152:
154: dummy block 156: rear end block
161: first ramp 162: second ramp
163: Horizontal 171: Elastic guide
172: guide boss

Claims (9)

Bottom type; And
An upper mold disposed at the upper portion of the lower mold and having a shear end test portion for carrying out a shear endurance test for evaluating the wear life of the mold while being driven up / down with respect to the lower mold;
An upper pressing force measuring unit for measuring a pressing force of the upper mold against the lower mold; And
And a controller receiving the signal of the image forming pressure measuring unit and controlling the operation of the external notification unit,
The lower mold comprises a dual specimen setting block in which a first specimen as a heat treated special steel and a second specimen as a universal cold die steel are loaded together in a dual manner, a first support block for supporting the dual specimen setting block, A pair of dummy blocks connected to both side ends of the second support block, a pair of rear end blocks connected to the dummy block, respectively, and a second support block supporting the dual specimen setting block, And a guide block connected to the first support block and having a plurality of guide pins formed on a surface of the guide block, the guide block forming a portion where the piercing hole is machined by interaction with the upper mold,
A first ramp is formed between the second support blocks,
A horizontal path connected to the first ramp is formed between the pair of dummy blocks,
And a second ramp connected to the horizontal path is formed between the pair of rear end blocks.
The method according to claim 1,
Further comprising a pair of connection blocks spaced apart from each other at a front end of the piercing hole processing guide block.
The method according to claim 1,
And a gap for adjusting the gap of the dual specimen setting block is formed between the dual specimen setting block and the first support block.
delete delete delete The method according to claim 1,
Wherein the inclination degree of the second ramp is higher than that of the first ramp.
The method according to claim 1,
Wherein a plurality of elastic guides are provided on the circumferential surface of the lower mold and a plurality of guide bosses are provided on the circumferential surface of the upper mold to engage with the plurality of elastic guides. Device.
The method according to claim 1,
In the lower mold,
A base plate made of stainless steel having a thickness of 100 mm to 150 mm, which is locked or unlocked to the bottom plate by a latch;
A pair of first columns extending upwardly from the base plate and made of stainless steel having a thickness of 100 mm to 150 mm and a height of 500 mm to 600 mm;
A first support plate supporting the upper end of the first column and having the same thickness and material as the base plate;
A second support plate which is in contact with the first support plate and has the same thickness and material as the first support plate;
A pair of second columns extending to the top of the second support plate and made of stainless steel having a thickness of 100 mm to 150 mm and a height of 350 mm to 400 mm; And
A second supporting block, a second supporting block, and a guide block for piercing the hole, wherein the dual specimen setting block, the first supporting block, the second supporting block, and the piercing hole processing guide block are mounted on the upper portion of the second column, And a block mounting plate to be manufactured. The apparatus for shearing durability test for evaluating the wear life in a mold.

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