KR20130034728A

KR20130034728A - Apparatus for testing coating performance of press

Info

Publication number: KR20130034728A
Application number: KR1020110098753A
Authority: KR
Inventors: 공호영
Original assignee: 현대자동차주식회사; 기아자동차주식회사
Priority date: 2011-09-29
Filing date: 2011-09-29
Publication date: 2013-04-08

Abstract

PURPOSE: A device for evaluating the coating performance of press equipment is provided to grasp the damaged extent of a surface coating by using a configuration similar to actual press equipment, thereby accurately measuring the abrasion of the coating. CONSTITUTION: A device for evaluating the coating performance of press equipment comprises a lower fixed die(51), an upper movable die(52), a protrusion block(53), and a transferring device. The upper movable die is installed to be vertically moved with respect to the lower fixed die. The protrusion block is arranged in the lower fixed die and installed to be protruded upwardly to the lower fixed die. The transferring device forcibly transfers a coating steel plate(61) so that supplying or discharging between the coating steel plate to/from between the lower fixed die and the upper movable die is consecutively performed according to a rotation cycle.

Description

Coating performance evaluation device for press equipment {APPARATUS FOR TESTING COATING PERFORMANCE OF PRESS}

The present invention relates to an apparatus for evaluating coating performance of press equipment, and more particularly, to an apparatus for evaluating coating performance of press equipment for producing panel parts of a vehicle.

In general, the panel parts constituting the vehicle are made through a press equipment, the press equipment 10 is a punch for processing the upper mold 11 and the lower mold 12 and products as shown in FIG. With the configuration including (13), when the steel sheet material 21 is supplied into the space between the upper mold 11 and the lower mold 12, the panel 13 can be manufactured into a panel part 22 having a desired shape by the operation of the punch 13. Is done.

On the other hand, the surface of the material 21 is processed into a panel component 22 in the press equipment 10, that is, the product processing surface 14, the coating 30, as shown in Figure 2 to improve the surface hardness and wear resistance of the mold It is.

If the coating 30 is not formed on the product processing surface 14 of the press equipment 10 or the coating 30 is insufficient, scratches are generated on the processed surface of the manufactured panel part 22. As a result, a problem occurs that a defective product is produced, and furthermore, a problem that adversely affects the durability of the mold occurs.

Therefore, the coating 30 technology of the product processing surface 14 in the press equipment 10 is one of the important factors for extending the quality of the product and the life of the mold, for this purpose the degree of coating using the coating performance evaluation device Is evaluating whether it is correct.

That is, the conventional coating performance evaluation apparatus is provided with a lower die 42 having a rotary tool 41, as shown in Figure 3, the pressing tool 43 to operate in the vertical direction with respect to the lower die 42 One upper die 44, the pressure plate 43 is coupled to the configuration including the pressure plate (45).

Therefore, the surface of the coated coating specimen 46 is fixed to the rotary tool 41 and then rotated at a constant speed, and the pressure tool 43 is lowered in the situation in which the coating specimen 46 is rotated by pressing plate ( 45) is pressed on the coating specimen 46 for a predetermined time, to evaluate whether the coating is correct by grasping the damage degree of the surface of the coating specimen 46 through the test as described above.

That is, the coating specimen 46 used in the coating performance evaluation apparatus corresponds to the product processing surface 14 which processes the material 21 into the panel parts 22 in the actual press equipment 10, and the coating specimen ( 46) If the damage degree of the surface is severe, it means the same as the damage of the product processing surface 14 in the press equipment (10).

By the way, in the conventional coating performance evaluation apparatus as described above, the coating specimen () rotates due to the difference in the rotational speed of the inner portion near the rotational center and the rotational speed of the outer portion away from the rotational center, and thus the amount of wear of each part is different. When the pressure plate 45 is in contact with the coating specimen 46, the pressure plate 45 is splashed up and down, there is a disadvantage that it is difficult to measure the exact amount of wear.

If the wear amount of the coating specimen 46 is not accurately measured as described above, the coating equipment (coating amount and thickness, etc.) of the product processing surface 14 may not be accurately set in the press equipment 10, resulting in defective products being produced. Problems will arise.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

The present invention has been made to solve the above disadvantages, by providing a coating performance evaluation apparatus having the same conditions as the actual press equipment for producing vehicle panel parts, it is possible to measure the wear amount of the coating more accurate In addition, the purpose is to prevent the occurrence of defects in the finished vehicle panel parts and to further improve the quality of the product by applying the measured amount of wear of the coating to the actual press equipment.

Coating performance evaluation apparatus of the present invention press equipment for achieving the above object, the lower fixing die; An upper movable die installed to be movable in the vertical direction with respect to the lower fixed die; A protrusion block provided on the lower fixing die to protrude upwardly of the lower fixing die; And a conveying mechanism for forcibly transporting the coated steel sheet so that the operation of supplying or discharging the coated steel sheet between the lower fixing die and the upper moving die is performed continuously along the rotation cycle.

The protrusion block may be installed to move up and down with respect to the lower fixing die.

An actuator fixed to the lower fixing die; And an actuating rod having one end connected to the actuator and the other end connected to the protruding block through the lower fixing die to move up and down by the power of the actuator.

The lower fixing die is integrally formed with a block groove opened upward for mounting the protrusion block.

The protruding block is characterized in that the upper surface in contact with the coated steel sheet is formed in an arc shape protruding upward.

The transfer mechanism includes a plurality of rotating rollers for forcibly transferring the coated steel sheet; And a tension control roller capable of adjusting the tensile force of the coated steel sheet.

The coating performance evaluation apparatus of the press equipment according to the present invention, by using a configuration similar to the actual press equipment can determine the degree of damage of the surface coating, it is possible to measure the wear amount of the coating more accurate, the actual wear amount measured By applying it to press equipment, it is possible to prevent the occurrence of defects on the finished vehicle panel parts and to improve the quality of the products. Furthermore, the automotive panel parts can effectively evaluate the coating performance of all kinds of press equipments manufactured. have.

1 is a view of the press equipment for manufacturing a vehicle panel component,
Figure 2 is a view for showing a coating bonded to the product processing surface in the press equipment,
3 is a view of the coating performance evaluation apparatus of the conventional press equipment,
4 and 5 is a view of the coating performance evaluation apparatus of the press equipment according to the present invention.

Hereinafter, with reference to the accompanying drawings looks at the coating performance evaluation apparatus of the press equipment according to a preferred embodiment of the present invention.

Coating performance evaluation apparatus of the press equipment according to the present invention is manufactured similar to the actual press equipment (see Fig. 1) as shown in Figure 4 and 5, the lower fixing die 51 and the lower fixing die ( An upper movable die 52 installed to be movable in an up and down direction with respect to 51), and a protrusion block 53 provided to the lower fixing die 51 to protrude upwardly of the lower fixing die 51; Transfer mechanism 54 for forcibly conveying the coated steel sheet 61 so that the operation of supplying or discharging the coated steel sheet 61 between the lower fixing die 51 and the upper movable die 52 can be continuously performed along the rotation cycle. ) Is configured to include.

Here, the protrusion block 53 is preferably installed so as to move up and down relative to the lower fixing die 51, by the up and down movement of the upper movement die 52 and the protrusion block 53. It is possible to adjust the pressure received by the coated steel sheet 61, it is possible to variously change the test conditions for evaluating the coating performance by adjusting the pressure received by the coated steel sheet 61.

In order to move up and down of the protrusion block 53, the present invention includes an actuator 55 fixed to the lower fixing die 51 and one end connected to the actuator 55 to connect the lower fixing die 51. The other end is connected to the protruding block 53 so as to penetrate and is configured to further include an operation rod 56 that moves up and down by the power of the actuator 55.

The actuator 55 includes an operating mechanism using a motor, pneumatic or hydraulic pressure, and its operation is configured by control of a controller (not shown).

On the other hand, the lower fixing die 51 is integrally formed with a block groove (51a) opened upward for the mounting of the projection block 53, the projection block 53 by the block groove (51a) The structure becomes a structure which can be mounted more stably.

The protruding block 53 has a structure in which an upper surface contacting the coated steel sheet 61 is formed in an arc shape protruding upward.

That is, as the tip of the protrusion block 53 is formed in a convex arc shape, the coated steel sheet 61 can ride over the protrusion block 53 more smoothly, thereby scratching the protrusion block 53. It is possible to prevent damage of the coated steel sheet 61, such as development.

And, the transfer mechanism 54 is composed of a plurality of rotary rollers (54a) forcibly transferring the coated steel sheet 61, and a tension control roller (54b) that can adjust the tensile force of the coated steel sheet (61). It is done.

Hereinafter, the operation of the apparatus of the present invention will be described.

The surface-coated coated steel sheet 61 is placed on the upper surface of the lower fixing die 51, and the upper movable die 52 is lowered to press the coated steel sheet 61 at a constant pressure.

On the other hand, by operating the actuator 55 to be able to move the protruding block 53 to the lower fixing die 51, the bar is moved up and down, the upper and lower movement of the protruding block 53 is It is possible to adjust the pressure received by the coated steel sheet 61), and through the pressure control received by the coated steel sheet 61 can be variously changed test conditions for evaluating the coating performance.

As described above, when the rotating roller 54a is rotated while the coated steel sheet 61 is pressed using the upper moving die 52 and the protrusion block 53, the coated steel sheet 61 is fixed to the lower fixing die 51. The process of being supplied between and the upper movable die 52 and the process of discharging from the lower fixed die 51 and the upper movable die 52 proceeds continuously along the rotation cycle.

At this time, the coating steel sheet 61 can determine the degree of damage of the surface coating by the pressure received by the coated steel sheet 61 in the process of passing through the protrusion block 53, the operator grasps the degree of damage of the surface coating By evaluating whether the coating is correct, and reflecting the evaluation on the product processing surface 14 of the actual press equipment 10, it is possible to achieve the correct coating of the actual press equipment 10.

As described above, the coating performance evaluation apparatus of the press equipment according to the present invention, by using the configuration similar to the actual press equipment can determine the degree of damage of the surface coating, it is possible to measure the wear amount of the coating more accurate, By applying the amount of wear to the actual press equipment, there is an advantage of preventing the occurrence of defects of the finished vehicle panel parts and further improving the quality of the product.

In addition, the panel parts used as vehicle parts have a variety of types, and use a variety of press equipment having a different shape and configuration according to the type of panel parts, the evaluation apparatus according to the present invention coating performance of all the press equipment of various types There is also a merit that can be evaluated publicly.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

51-Lower Fixed Die 52-Upper Move Die
53-protrusion block 54-feed mechanism
54a-rotary roller 54b-tension roller
55-actuator 56-working rod
61-coated steel sheet

Claims

Lower fixing die 51;
An upper moving die 52 installed to be movable in the vertical direction with respect to the lower fixing die 51;
A protrusion block 53 provided on the lower fixing die 51 to protrude upwardly of the lower fixing die 51; And
Transfer mechanism 54 for forcibly conveying the coated steel sheet 61 so that the operation of supplying or discharging the coated steel sheet 61 between the lower fixing die 51 and the upper movable die 52 can be continuously performed along the rotation cycle. Coating performance evaluation device of the press equipment comprising;

The method according to claim 1,
The projection block 53 is a coating performance evaluation apparatus of the press equipment, characterized in that installed so as to move up and down relative to the lower fixing die (61).

The method according to claim 1,
An actuator (55) fixed to the lower fixing die (51); And
One end is connected to the actuator 55 and the other end is connected to the protruding block 53 through the lower fixing die 51 so that the operating rod 56 moves up and down by the power of the actuator 55. Coating performance evaluation apparatus of the press equipment further comprises.

The method according to claim 1,
The lower fixing die 51, the coating performance evaluation apparatus of the press equipment, characterized in that the block groove (51a) which is open to the upper side for the seating of the projection block 53 is formed integrally.

The method according to claim 1,
The projection block 53 is a coating performance evaluation apparatus of the press equipment, characterized in that the upper surface in contact with the coated steel sheet 61 is formed in an arc shape protruded upwards.

The method according to claim 1,
The conveying mechanism 54 is a plurality of rotating rollers (54a) for forcibly conveying the coated steel sheet (61); And
Tension control roller (54b) that can adjust the tensile force of the coated steel sheet 61; Coating performance evaluation apparatus of the press equipment characterized in that consisting of.