KR101245309B1 - Device for marking on test piece - Google Patents

Abstract

In order to mechanically perform the marking work on the impact test specimen, a frame structure having a rectangular frame shape, a pallet placed inside the frame structure and having a plurality of test pieces fixed on the upper surface thereof, and installed inside the frame structure to recognize a need for the test piece An impact test piece marking device including a marking portion for marking a mark is provided.

Frame Structure, Pallet, Fixture, Strikeper, Moving Bogie, Position Detection Sensor

Description

Impact Test Marking Device {DEVICE FOR MARKING ON TEST PIECE}

The present invention relates to test equipment. More specifically, the present invention relates to an impact test piece marking device for marking numbers and the like on test pieces used in the impact test.

In general, the impact test is conducted by impacting the specimen, unlike the static test such as simple tensile, creep or fatigue test. Since the mechanical properties through static tests are different from the mechanical properties due to impacts, impact tests should be conducted to obtain data on safety design of machinery, etc., or to determine the machinability or elucidate the deformation mechanism in high-speed plastic working.

An impact test is a test in which a strong impact is applied to a material or the surface of a test piece made of the material. Testers for impact testing include Charpy impact tester, Izod impact tester, impact tensile tester, impact torsion tester, and automatic recordable impact tester.

In the impact test, the direction of impact is different according to the shape of the test piece, so the direction must be checked, and the temperature, the speed of the impact machine, the gauge angle before and after the impact, etc. are carefully checked. .

The test piece used for the impact test is processed according to a predetermined standard.

The impact test specimen thus manufactured is to mark information on the specimen on one side.

However, in the related art, the marking work on the side of the impact test piece is made entirely manually, and there is a problem that the risk of safety accidents is high along with the workload.

That is, in the related art, the test piece is fixed to a general die, and the operator performs the marking work on the side of the test piece by using a hammer and a tablet.

However, the above-described conventional structure has a problem in that the impact test piece is frequently changed or reworked due to mixing of marking numbers. In addition, there is a risk of a safety accident in which a worker hurts his or her hand by a hammer for marking at the time of a manual marking engraving operation, and there is a problem that the worker's fatigue is increased and the marking work time or delay is delayed.

In addition, the marking is not properly made according to the power to be hit, the tester takes a lot of time in the subsequent work, such as sorting and cleaning the specimen during the test work, there is a problem that the test air is also delayed.

Accordingly, the present invention provides an impact specimen marking device capable of mechanically performing a marking operation on an impact specimen.

To this end, the apparatus includes a frame structure having a rectangular frame shape, a pallet placed inside the frame structure and having a plurality of test pieces fixed thereon, and a marking part installed inside the frame structure to mark a required recognition symbol on the test piece. Can be.

The frame structure may be a structure in which a front surface is opened and a cover for covering the frame structure is rotatably installed through a hinge axis.

In addition, the pallet may include a plate and a fixing plate installed at intervals to fix the test piece.

The guide may include a front guide, a rear guide and a side guide so as to support and fix at least three sides of the test piece.

The front fixture or the rear fixture of the holder may further include a pressing unit for elastically pressing the test piece.

The pressing unit may include a hole formed toward the test piece in the front fixing stand or the rear fixing stand, a ball mounted in the hole and protruding to the outside, and an elastic member for elastically supporting the ball.

In addition, the frame structure may further include a fixing clamp installed on the inner bottom surface to fix the pallet.

The marking portion is horizontally installed in the frame structure horizontally, a moving trolley moved along the horizontal rail, a drive unit for moving the moving trolley, on the upper surface of the test piece installed on the front of the moving trolley and fixed to the pallet A striker for marking a recognition symbol, and may be installed on one side of the moving cart, a position detection sensor for detecting the position of the test piece fixed to the pallet.

As such, the apparatus can reduce the effort and time required for the marking work as the marking work on the test piece is mechanically performed.

In addition, it is possible to minimize the risk of safety accidents that may occur during the conventional marking work by hand.

In addition, the follow-up work can be made more quickly to shorten the test air.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

The drawings are schematic and illustrate that they are not drawn to scale. The relative dimensions and ratios of the parts in the figures have been exaggerated or reduced in size for clarity and convenience in the figures and any dimensions are merely exemplary and not limiting. And to the same structure, element, or component appearing in more than one of the figures, the same reference numerals are used to denote corresponding or similar features in other embodiments.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein, the singular forms “a,” “an,” and “the” include plural forms as well, unless the phrases clearly indicate the opposite. As used herein, the term "comprising" embodies a particular characteristic, region, integer, step, operation, element, and / or component, and other specific characteristics, region, integer, step, operation, element, component, and / or group. It does not exclude the presence or addition of.

Embodiments of the invention described with reference to a perspective view specifically illustrate an ideal embodiment of the invention. As a result, various variations of the illustration, for example variations in the manufacturing method and / or specification, are expected. Thus, the embodiment is not limited to any particular form of the depicted area, but includes modifications of the form, for example, by manufacture. The regions shown in the figures are only approximate in nature, and their forms are not intended to depict the exact form of the regions and are not intended to narrow the scope of the invention.

1 is a perspective view showing the overall structure of the impact test piece marking device according to the present embodiment.

As shown, the marking device 10 includes a frame structure 12 having a rectangular frame structure, a pallet 30 installed in the frame structure 12 and having a plurality of test pieces P fixed thereon, the frame structure. (12) includes a marking portion 50 installed inside to mark the required recognition symbol on the test piece (P).

The frame structure 12 has a structure in which the front surface is opened to make it easier to mount the pallet 30 inside the frame structure 12 or to take it out.

A control unit (not shown) necessary for driving the device may be located inside the lower portion of the frame structure 12, and a switch unit 18 having a switch and a display panel connected to the control unit may be disposed on the lower front surface of the frame structure 12. It is provided.

Since the marking device 10 may generate noise when marking, the frame structure 12 is further provided with a cover 14 for covering the front surface and blocking the outside. As shown in FIG. 1, the cover 14 is pivotally coupled to a hinge axis at an upper end of the frame structure 12, and the front side is made of a transparent material such as glass so that the marking operation can be easily confirmed from the outside. .

In addition, a shock absorber 16 is further provided between the cover 14 and the frame structure 12 to facilitate opening and closing of the cover 14.

Figure 2 shows the interior of the frame structure of the device.

According to the above drawings, the pallet 30 to which the test piece P is fixed is installed on the inner bottom surface of the frame structure 12. And a marking unit 50 for marking the recognition symbol on the test piece (P) above the pallet 30 is installed.

The marking part 50 has a horizontal rail 52 which is horizontally installed inside the frame structure 12, a moving cart 54 which is moved along the horizontal rail 52, and the moving cart 54. A test piece installed at one side of the striking machine 56 for marking a recognition symbol on the upper surface of the test piece P fixed to the pallet 30 and the moving cart 54 on the front side and fixed to the pallet 30. And a position detection sensor 58 for detecting the position of (P).

The horizontal rail 52 is fixedly installed through a vertical post 60 that is vertically installed in the frame structure 12.

The moving trolley 54 is installed to be movable along the horizontal rail 52, and as a driving unit for the movement of the moving trolley 54, the apparatus further includes a transfer screw 62 and a step motor 64.

That is, the moving cart 54 is structured to be engaged with the conveying screw 62 provided along the horizontal rail 52. One side end of the horizontal rail 52 is connected to the transfer screw 62 is provided with a step motor 64 for forward and reverse rotation of the transfer screw 62.

Accordingly, when the step motor 64 is operated, the transfer screw 62 is rotated so that the moving cart 54 engaged with the transfer screw 62 moves left and right along the horizontal rail 52.

The structure for moving the moving cart 54 can be variously applied in addition to the coupling structure of the step motor 64 and the transfer screw 62 is not particularly limited to the above structure.

The striking unit 56 is provided with a bite for marking a recognition symbol at the tip and strikes the recognition symbol while reciprocating the byte.

In addition, a position detection sensor 58 for detecting the position of the test piece P is further installed in the lower portion of the moving cart 54 to control the position of the striking machine 56 to the position of the test piece P.

The position detection sensor 58 may be set to various sensors such as a light receiving sensor, a proximity sensor, or a sensor capable of responding to the test piece P.

In this embodiment, the position detection sensor 58 is installed toward the test piece P to detect the position of the test piece P when the moving cart 54 moves.

The signal of the position detection sensor 58 detected in this way is applied to a circuit configuration such as a control part provided in the lower part of the frame structure 12 to sequence control the next operation. That is, the current applied to the step motor 64 is cut off according to the signal of the position detection sensor 58 to stop the movement of the moving cart 54 at the corresponding position. The bite of the striking machine 56 can be located exactly on the upper surface of the test piece (P).

The test piece P is disposed on the pallet 30 at intervals along the moving direction of the moving cart 54.

A fixing clamp 20 for clamping and fixing both front ends of the pallet 30 is installed on the bottom surface of the frame structure 12. The fixed clamp 20 is a structure that is elastically rotated to press the pallet 30 can be applied a variety of structures are not particularly limited.

On the other hand, the pallet 30 is a plate structure that is selectively detachably coupled in the frame structure 12, a plurality of test pieces (P) is fixed on the upper surface.

3 illustrates the pallet 30.

As shown in the drawing, the pallet 30 includes a rectangular plate 32 and a fixing plate installed at intervals on the plate 32 to fix the test piece P. And both ends are provided with a handle 34 for easily moving the pallet (30).

The test piece P stands on a pallet 30 and is fixed. To this end, the fixture includes a front fixture 36 for fixing the front surface of the test piece (P) and a rear surface fixture 38 for fixing the opposite rear surface and a side holder 40 for supporting the side.

The test piece (P) is the front, back and sides are supported by each holder so that the position can be fixed.

The front holder 36, the rear holder 38 and the side holder 40 are all made of a cylindrical cross-sectional structure and installed vertically on the plate at a height corresponding to approximately the height of the test piece (P).

In the present embodiment, the front holder 36 is made of one and the rear holder 38 is arranged in a pair of two spaced apart. The front fixture and two rear fixtures are arranged in a triangle to support the test piece (P) more stably.

In addition, as shown in FIGS. 3 and 4, the front holder 36 of the holders further includes a pressing unit for elastically pressing the test piece P. The pressing part includes a hole 42 formed in the front fixing stand 36 toward the test piece P, a ball 44 mounted in the hole and protruding to the outside, and an elastic member 48 for elastically supporting the ball. do.

The hole 42 is formed to penetrate in the horizontal direction with respect to the front stand (36) standing vertically. The tip of the hole 42 where the ball 44 is located, that is, the side in contact with the test piece P, has a structure that is curved inward so that the ball 44 does not escape to the outside. In other words, the tip diameter of the ball-side hole 42 is smaller than the diameter of the ball 44. The ball 44 may protrude toward the tip of the hole 42 but may not move outward but may move only inward.

The opposite end of the hole 42 is fastened with a screw 46. In addition, an elastic spring 48 is elastically installed between the ball 44 and the tip of the screw 46 in the hole 42 to pressurize the ball.

Therefore, when the test piece P is inserted between the front holder 36 and the rear holder 38, the ball 44 protruding from the front holder is pressed inward, and the ball 44 is pushed by the elastic force of the elastic spring 48. ) Pressurizes the specimen (P). This will increase the holding force on the test piece (P).

Hereinafter, the operation of the apparatus will be described.

First, the test piece P is fixed to the present pallet 30. When the test piece (P) is inserted between the rear stand (38) and the front stand (36) installed on the pallet (30) and the side of the test piece (P) is brought into close contact with the side holder (40), the test piece (P) is held in the pallet (30). ) Can be fixed accurately.

When the test piece P required for marking is fixed on the pallet 30, the pallet 30 is moved and positioned on the inner bottom surface of the frame structure 12, and fixed by using the fixing clamp 20. When the pallet 30 is fixed, the cover 14 is rotated to close the frame structure 12.

In this state, if the required marking recognition symbol is input through a separate computer or switch unit 18 and the operation of the apparatus is started, the marking operation for each test piece P is sequentially performed.

That is, when the step motor 64 is driven, the transfer screw 62 is rotated, and the moving cart 54 engaged with the transfer screw 62 moves along the horizontal rail 52. As the moving trolley 54 moves, the position detecting sensor 58 installed in the moving trolley 54 also moves, and the test piece P provided on the pallet 30 by the position detecting sensor 58 is moved. Is detected.

The step motor 64 is stopped in accordance with the test piece P detection signal by the position detection sensor 58.

The striking unit 56 installed in the moving cart 54 is located exactly above the test piece P. And as the striking machine 56 is driven, the bite of the tip of the striking machine 56 moves along the upper end of the test piece P, thereby marking the input recognition symbol.

When the marking operation on one side of the test piece (P) is completed, the byte is returned to its original position and the step motor 64 is driven again to move the moving cart 54 to the next test piece (P).

By repeating the above process it is possible to mark the recognition symbol entered on all the test piece (P) fixed on the pallet (30).

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course.

1 is a schematic perspective view showing an impact test piece marking device according to the present embodiment.

2 is a perspective view showing the internal configuration of the marking apparatus according to the present embodiment.

3 is a schematic plan view showing a pallet of the marking apparatus according to the present embodiment.

4 is a cross-sectional view showing a structure for fixing a test piece in a pallet of the marking apparatus according to the present embodiment.

Claims (9)

A frame structure having a rectangular frame shape, a pallet placed inside the frame structure and having a plurality of test pieces fixed thereon, and a marking part installed inside the frame structure to mark a required recognition symbol on the test piece, The pallet includes a plate and a holder installed at intervals on the plate to fix the test piece, and the holder includes a front holder, a rear holder, and a side holder to support and fix at least three sides of the test piece. Impact test piece marking device further comprises a pressing portion for elastically pressing the test piece of the front fixture or the rear fixture of the fixture. delete delete delete The method of claim 1, The pressing unit is a impact test piece marking device comprising a hole formed toward the test piece in the front or rear fixing stand, a ball mounted in the hole protruding to the outside, the elastic member for elastically supporting the ball. 6. The method of claim 5, The frame structure is an impact test piece marking device of the structure that the front surface is open and the cover that covers the frame structure on the upper portion is rotatably installed via the hinge axis. The method of claim 6, The frame structure is impact test piece marking device further comprises a fixing clamp is installed on the inner bottom surface to fix the pallet. The method according to any one of claims 1 or 5 to 7, The marking portion is horizontally installed in the frame structure horizontally, a moving trolley moved along the horizontal rail, a drive unit for moving the moving trolley, on the upper surface of the test piece installed on the front of the moving trolley and fixed to the pallet An impact test piece marking apparatus comprising a striking machine for marking a recognition symbol, and a position detection sensor installed at one side of the moving cart to detect a position of a test piece fixed to the pallet. 9. The method of claim 8, Wherein the drive unit is installed along the horizontal rail impact test piece marking device comprising a transfer screw to be engaged with the moving trolley, and a step motor installed on one side of the horizontal rail and connected to the transfer screw for rotating the transfer screw forward and backward.

Images