TWI770797B - Fixture and vibration test machine - Google Patents

Abstract

A fixture includes a bearing plate, a fixing piece, a stop piece, an adjusting piece and a locking piece. The fixing piece is provided with a groove, and the stop piece is slidably arranged in the groove. The stop piece is used to hold the workpiece to position. The adjusting piece is connected to the fixing piece, and one end extends into the groove and is connected to the stop piece. The adjusting piece is used to adjust the position of the stop piece. The locking piece is used to lock the position of the adjusting piece. A vibration test machine, comprising a vibrator and above-mentioned fixture, the fixture is used to position the workpiece, and the vibrator is used to vibrate the fixture and workpiece.

Description

Fixtures and Vibration Testers

The application relates to a fixed fixture and a vibration testing machine.

At present, in the vibration test of workpieces such as computer servers, the block is usually used to fix the horizontal displacement of the workpiece, and the pressure bar is used to apply the vertical locking force to the workpiece, but only the friction between the block and the platform is used. The force resists the impact force in the horizontal direction, which often causes a gap between the stopper and the workpiece, and makes the output waveform of the vibrator incomplete and beyond the limit range, which eventually leads to the failure of the test.

In view of this, it is necessary to provide a fixing jig that can stably fix the workpiece and a vibration testing machine that can improve the test success rate.

An embodiment of the present application provides a fixing jig, which includes a carrier plate, a fixing member, a stopper, an adjusting member and a locking member. The carrier plate is used to carry the workpiece. The fixing piece is arranged on the carrying plate, and the fixing piece is provided with a receiving groove, and the receiving groove penetrates through the bottom surface of the fixing piece. The stopper is slidably arranged in the accommodating slot, and the bottom surface of the stopper is flush with the bottom surface of the fixing piece and contacts the carrying plate, and the stopper protrudes from the side wall of one end of the accommodating slot Used to abut the workpiece to position the workpiece in the horizontal direction the said workpiece. The adjusting piece is connected to the fixing piece, one end extends into the receiving groove and is connected to the stopper, and the other end is placed outside the receiving groove, and the adjusting piece is used for adjusting the position of the stopper. The locking piece is arranged on the adjusting piece for locking the position of the adjusting piece and then locking the position of the stop piece. The cross-sectional area of one end of the stopper protruding from the receiving groove is smaller than the cross-sectional area of the end placed in the receiving groove, so as to reduce the stress and deformation of the stopper.

Further, in some embodiments, the stopper includes a main body portion and a pushing portion connected to each other, the main body portion is slidably placed in the receiving groove, and the pushing portion is connected to the main body portion and protrudes out At one end of the receiving groove, the length of the main body portion is greater than the length of the pushing portion, the width of the body portion is the same as the width of the pushing portion, and the cross-sectional area of the pushing portion is smaller than that of the main body The cross-sectional area of the part can reduce the stress and deformation of the stopper.

Further, in some embodiments, the bottom surface of the pressing portion is flush with the bottom surface of the main body portion, and the top surface of the pressing portion and the top surface of the main body portion are connected by inclined surfaces to reduce the stress and deformation of the stopper.

Further, in some embodiments, the connection between the inclined surface and the top surface of the pushing portion is provided with a rounded corner, so as to reduce the stress and deformation of the stopper as a whole.

Further, in some embodiments, the cross-sectional shape of the main body portion is the same as the cross-sectional shape of the receiving groove, so as to limit the rotation of the stopper.

Further, in some embodiments, the range of the distance that the stopper protrudes from the receiving groove is greater than or equal to 4 centimeters and less than or equal to 5.5 centimeters.

Further, in some embodiments, the fixing jig further includes a plurality of beading bars, each of the beading bars is placed above the carrier plate, and two ends are connected to the supporting plate, and the beading bars are used in the vertical direction The workpiece is pressed onto the carrier plate.

An embodiment of the present application also provides a vibration testing machine for performing vibration testing on a workpiece, including a vibrator and a fixing jig, the fixing jig is used to position the workpiece, and the vibrator is used to make the fixing The jig vibrates to drive the workpiece to vibrate.

The above-mentioned fixing jig adjusts the position of the stopper relative to the fixing piece through the adjusting piece, then fixes the stopper piece on the carrier plate with the fixing piece, and finally fixes the workpiece by the stopper piece, so as to achieve the purpose of stably fixing the workpiece. The above vibration testing machine achieves the purpose of improving the test success rate by fixing the jig.

100: Fixed jig

200: Workpiece

100a: Carrier plate

100b: Stop

100c: Laminate

10: Fixing parts

10a: Containment slot

20: Stopper

21: Main body

22: Pushing Department

23: Bevel

24: rounded corners

30: Adjustment piece

40: Locking pieces

FIG. 1 is a three-dimensional schematic diagram of a fixing jig according to an embodiment of the present application.

FIG. 2 is an exploded view of the fixing piece, the stop piece, the adjusting piece and the locking piece in FIG. 1 .

The technical solutions of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or it can also be present on an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or may be co-existing with intervening elements. When an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or it may be co-existing with an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used herein in the specification of the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments may be combined with each other without conflict.

Referring to FIG. 1 and FIG. 2 , an embodiment of the present application provides a fixing jig 100 for positioning the workpiece 200 in the horizontal direction. The fixing jig 100 includes a carrier plate 100 a , a fixing member 10 , a stopper 20 , an adjusting member 30 and a locking member 40 . The carrier plate 100a is arranged horizontally, and the top is used to carry the workpiece 200 . The fixing member 10 is fixed on the carrier board 100a. The fixing member 10 is provided with a receiving groove 10a. The stopper 20 is slidably disposed in the receiving groove 10a. A side wall of the stopper 20 protruding from one end of the receiving groove 10a is used to abut the workpiece 200 to position the workpiece 200 in a horizontal direction. The adjusting member 30 is connected to the fixing member 10 , one end extends into the receiving groove 10 a and is connected to the stopper 20 , and the other end is placed outside the receiving groove 10 a . The adjusting member 30 is used to adjust the position of the stopping member 20 . The locking member 40 is disposed on the adjusting member 30 for locking the position of the adjusting member 30 and then locking the position of the stopper member 20 . In one embodiment, the adjusting member 30 is a screw, the locking member 40 is a nut, the adjusting member 30 is connected to the fixing member 10 by a thread, and the locking member 40 is sleeved on the adjusting member 30 and is placed outside the receiving groove 10a for adjusting. The end of the stopper 30 is rotated and connected to the stopper 20. When the adjustment piece 30 is twisted, the adjustment piece 30 will move relative to the fixed piece 10, thereby driving the stopper 20 to move. The position of the adjusting member 30 is locked, and then the position of the stop member 20 is locked. As an illustrative example, the workpiece 200 is a main computer casing.

In order to prevent the stopper 20 from shaking or excessively deformed, the receiving groove 10a penetrates the bottom surface of the fixing piece 10, and the bottom surface of the stopper 20 is flush with the bottom surface of the fixing piece 10 and contacts the top surface of the carrier plate 100a, so that the stopper 20 is always placed on the carrier plate 100a.

In order to reduce the contact area with the workpiece 200 , the stopper 20 includes a main body portion 21 and a pushing portion 22 which are connected to each other. The main body portion 21 is slidably placed in the receiving groove 10a. The pushing portion 22 is connected to one end of the main body portion 21 protruding from the receiving groove 10a. The length of the main body portion 21 is greater than that of the pushing portion 22 , the width of the body portion 21 is the same as the width of the pushing portion 22 , and the cross-sectional area of the pushing portion 22 is smaller than that of the body portion 21 . At In one embodiment, the main body portion 21 and the pushing portion 22 are substantially rectangular parallelepipeds, and the height of the pushing portion 22 is smaller than the height of the body portion 21 .

In order to reduce the internal stress and deformation of the stopper 20 , the bottom surface of the pushing portion 22 is flush with the bottom surface of the main body portion 21 , so that the stopper 20 can be in close contact with the carrier plate 100 a as a whole, and the top surface of the pushing portion 22 is in line with the bottom surface of the main body portion 21 . The top surface of the main body portion 21 is connected by the inclined surface 23 to prevent excessive stress at the connection between the pushing portion 22 and the body portion 21 , enhance the bonding strength of the pushing portion 22 and the body portion 21 , and prevent the pushing portion 22 from interacting with the body portion 21 . The main body portion 21 is broken.

In order to further reduce the internal stress and deformation of the stopper 20, the connection between the inclined surface 23 and the top surface of the pushing portion 21 is provided with a rounded corner 24. The rounded corner 24 is used to improve the bonding strength of the pushing portion 22 and the main body portion 21. The pressing portion 22 and the main body portion 21 are prevented from being broken when the workpiece 200 is pressed against each other.

In order to prevent the stopper 20 from shaking in the receiving groove 10a, the cross-sectional shape of the main body 21 is the same as the cross-sectional shape of the receiving groove 10a. .

In one embodiment, the adjusting member 30 can adjust the distance that the stopper 20 protrudes from the receiving groove 10a to be greater than or equal to 4 cm and less than or equal to 5.5 cm, such as 4.2, 4.5, 4.6, 5.0, and 5.2 cm.

As shown in FIG. 1 , the fixing jig 100 further includes a plurality of beading bars 100c, each beading bar 100c is placed above the carrier plate 100a, and the two ends are connected to the supporting plate 100a, and the beading bars 100c are used for vertically pressing the workpiece 200 to the bearing plate 100a. on the board 100a. In one embodiment, two ends of each bead 100c pass through a screw, the bottom end of the screw is connected to the bearing plate 100a, and a nut is sleeved at the top. The nut is used to fix the height of the bead 100c to fix the workpiece 200 in the vertical direction.

To sum up, an embodiment of the fixing jig 100 for positioning the workpiece 200 is as follows: placing the workpiece 200 on the carrier plate 100a, and twisting the adjusting member 30 to make the stopper 20 press against the workpiece 200 until it is fixed in the horizontal direction Workpiece 200, after adjusting the position, twist the locking piece 40 to lock the stopper 20 Then, the position of the workpiece 200 is stabilized in the horizontal direction; finally, the height of the bead 100c is adjusted to press the workpiece 200 onto the carrier plate 100a, thereby stabilizing the position of the workpiece 200 in the vertical direction.

As shown in FIG. 1 , in other embodiments, a stopper 100b may be further provided on the carrier plate 100a, the fixing member 10 is disposed opposite to the stopper 100b, and the stopper 20 pushes the workpiece 200 against the side wall of the stopper 100b , to fix the workpiece 200.

An embodiment of the present application also provides a vibration testing machine (not shown) for performing vibration testing on the workpiece. The vibration testing machine includes a vibrator and a fixing jig 100 , the fixing jig 100 is used for positioning the workpiece, and the vibrator is used to vibrate the fixing jig 100 to drive the workpiece to vibrate.

The above-mentioned fixing jig 100 adjusts the position of the stopper 20 relative to the fixing piece 10 by the adjusting piece 30 , and then fixes the stopper 20 on the carrier plate 100 a by the fixing piece 10 , and finally fixes the workpiece 200 by the stopper 20 . , to achieve the purpose of stably fixing the workpiece 200 . The above vibration testing machine achieves the purpose of improving the test success rate by fixing the jig 100 .

In addition, those of ordinary skill in the art should realize that the above embodiments are only used to illustrate the present application, not to limit the present application. Appropriate changes and changes to be made fall within the scope of the disclosure of the present application.

100: Fixed jig

200: Workpiece

100a: Carrier plate

100b: Stop

100c: Laminate

10: Fixing parts

20: Stopper

30: Adjustment piece

40: Locking pieces

Claims (5)

A fixing jig, which comprises: a bearing plate for carrying a workpiece; a fixing part, which is arranged on the bearing plate; the fixing part is provided with a receiving groove, and the receiving groove penetrates through the bottom surface of the fixing part; a stopper The stopper is slidably installed in the receiving slot, and the bottom surface of the stopper is flush with the bottom surface of the fixing piece and contacts the carrying plate, and the stopper protrudes from the sidewall of one end of the receiving slot for use The adjustment piece is connected to the fixing piece, one end extends into the receiving groove and is connected to the stopper, and the other end is placed outside the receiving groove. The adjusting piece is used to adjust the position of the stopper; the locking piece is arranged on the adjusting piece and is used to lock the position of the adjusting piece, and then lock the position of the stopper; the stopper includes a relative The main body portion and the pushing portion are connected, the main body portion is slidably placed in the accommodating groove, the pushing portion is connected to an end of the main body portion protruding from the accommodating groove, and the length of the main body portion is greater than the length of the The length of the pushing portion, the width of the main portion is the same as the width of the pushing portion, the cross-sectional area of the pushing portion is smaller than the cross-sectional area of the main portion; the bottom surface of the pushing portion is the same as the main body The bottom surface of the part is flush, the top surface of the pushing part and the top surface of the main body part are connected by an inclined surface; the connection between the inclined surface and the top surface of the pushing part is provided with a rounded corner. The fixing jig according to claim 1, wherein: the cross-sectional shape of the main body portion is the same as the cross-sectional shape of the receiving groove. The fixing jig according to claim 1, wherein: the distance range of the stopper extending out of the receiving groove is greater than or equal to 4 cm and less than or equal to 5.5 cm. The fixing jig according to claim 1, wherein: the fixing jig further comprises a plurality of pressure strips, each of the pressure strips is placed above the carrier board, and both ends are connected to the carrier board, and the pressure strips are used for The workpiece is pressed against the carrier plate in a vertical direction. A vibration testing machine is used to perform vibration testing on a workpiece, including a vibrator and a fixing jig, the fixing jig is used for positioning the workpiece, and the vibrator is used to vibrate the fixing jig to drive the workpiece Vibration, wherein: the fixing jig is the fixing jig according to any one of claim 1 to 4.

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