CS199860B1

CS199860B1 - Mechanism for clamping of cabinet furniture at strength and hardness tests

Info

Publication number: CS199860B1
Application number: CS824876A
Authority: CS
Inventors: Frantisek Siroky
Original assignee: Frantisek Siroky
Priority date: 1976-12-16
Filing date: 1976-12-16
Publication date: 1980-08-29

Description

Vynález sa týká zariadenia na upínanie skříňového nábytku pri skúškach mechanických vlastností, ako pevnosti a tuhosti.BACKGROUND OF THE INVENTION The present invention relates to a device for clamping cabinet furniture when testing mechanical properties such as strength and stiffness.

Doteraz používané zariadenie na upínanie skříň pozostáva z nepohyblivej podstavy, na ktorej sú pevné upínacie prvky. Tým je zanedbaný vplyv trenia medzi skriňou a podstavou, čo znemožňuje skúšanie jednotlivých jej prvkov a ich vzájomného spojenia. Chýba jednotný uzavretý systém upínania. Upínanie je zdíhavé a nerovnocenné pri upnutí skříň róznej konštrukcie.The housing clamping device used hitherto consists of a stationary base on which the clamping elements are fixed. This neglects the effect of friction between the cabinet and the base, which makes it impossible to test the individual elements and their interconnection. Uniform closed clamping system missing. The clamping is constrictive and uneven when clamping a box of different construction.

Uvedené nedostatky sú odstránené zariadením na upínanie skříňového nábytku pri skúške pevnosti a tuhosti, podťa vynálezu, ktorého podstata spočívá v tom, že pozostáva z dvoch rovnakých blokov, uložených na vedení, z ktorýeh každý je zostavený tak, že na ráme blokov je tiahlami a sférickými kibmi výkyvné zavesená plošina na uloženie skrine, pričom k rámu je připevněný třň s navlečenými upínacími ramenami a k čelu rámu je tyčami připojený priečnik na vodiacich tyčiach.The above drawbacks are overcome by the rigid and rigidity testing device of the cabinet furniture according to the invention, which consists of two identical blocks mounted on a guide, each of which is assembled so that on the frame of the blocks it is stiff and spherical a kibmi pendulum-mounted platform for supporting the cabinet, with a spindle attached to the frame with threaded clamping arms, and a crossbar on the guide bars attached to the front of the frame.

Výkyvným uložením skrine a pevnými upínacími prvkami sa dosahuje namáhanie skúšaných častí skrine predpísanou skúšobnou silou. Uloženie skrine na blokoch umožňuje jedným zariadením upínat’ skříňový nábytok róznej konštrukcie a rozmerov bez pridávania ďalších upínacích prvkov. Upnutie skříň róznej konštrukcie je rovnocenné, manipulácia s jednotlivými upínacími prvkami je jednoduchá.By swinging the housing and fixed clamping elements, the test parts of the housing are subjected to the required test force. Placing the cabinet on the blocks allows one device to clamp the cabinet furniture of different construction and dimensions without adding additional fixtures. The clamping of the boxes of different construction is equivalent, the handling of the individual clamping elements is easy.

Na připojených výkresoeh je znázorněný příklad prevedenia zariadenia podťa vynálezu. Na obr. 1 je v axonometrii nakreslené zariadenie na upínanie skříňového nábytku, na obr. 2 nárys zariadenia pri skúške podnožia, a na obr. 3 jeho pódorys. Nárys zariadenia pri skúške nóh je znázorněný na obr. 4a, jeho pódorys na obr. 5. Zariadenie pri skúške korpusu je v náryse znázorněné na obr. 6 a jeho pódorys na obr. 7.An example of an embodiment of the device according to the invention is shown in the accompanying drawings. In FIG. 1 is a perspective view of a device for clamping cabinet furniture, FIG. 2 is a front view of the device in the rootstock test, and FIG. 3 is a plan view thereof. The front view of the leg test device is shown in FIG. 4a, its plan view in FIG. 5. The body testing device is shown in front view in FIG. 6 and its plan view in FIG. 7th

Zariadenie (obr. 1) pozostáva z dvoch rovnakých blokov I, 2 upevněných na vedení 10. Na ráme 3 je zavesená plošina 4 tiahlami 5 a sférickými kíbami 6 a připevněný třň 7 s navlečenými ramenami 8, 9. Priečnik 11 na vodiacich tyčiach 12 je k rámu připojený tyčami 13. Prvky 1, 2, 8, 9, 11, 13 sú prestaviteťné. Sférické kíby 6 sú spojené tiahlom 5, pričom horné klby sú upevněné k rámu 3 a spodně k plošině 4.The device (Fig. 1) consists of two identical blocks 1, 2 mounted on a guide 10. On the frame 3, a platform 4 is hung by rods 5 and spherical joints 6 and a mandrel 7 with arms 8, 9 is attached. The elements 1, 2, 8, 9, 11, 13 are adjustable. The spherical joints 6 are connected by a tie rod 5, the upper joints being fixed to the frame 3 and lower to the platform 4.

Na skriňu 15 uloženú na plošinách 4 zariadenia (obr. 2) pósobia striedavo tlačné válce 16 menovitou skúšobnou silou. Na obr. 3 je.pódorys zariadenia s rezom podnožím upnutej skrine 15. Ramená 8, 9 bloku 1 sú uvoťnené, v bloku 2 zovreté v činnej polohe. Skúšaná je zovretá kratšia strana podnožia v smere osi valcov 16. Na obr. 4, 5 je nárys a pódorys zariadenia pri skúške nóh, k zariadeniu je přidané lóžko 14 s prestaviteťnou šířkou zovretia. Skúšané sú pravé nohy v smere osi valeov 16.On the housing 15 mounted on the platforms 4 of the device (FIG. 2), the pressure rollers 16 alternately exert a nominal test force. In FIG. 3 is a plan view of a device with a cross-section of the base of the clamped housing 15. The arms 8, 9 of the block 1 are released, clamped in the block 2 in the operative position. The shorter side of the rootstock in the direction of the axis of the cylinders 16 is tested. 4, 5 is a front view and a plan view of the leg test device, a bed 14 having an adjustable clamping width is added to the device. The right legs in the direction of the vale axis 16 are tested.

Uljajfenie skrine pri skúške tuhosti korpusu jeUljajfenie cabinets in the body rigidity test is

9 9 860 na obr. 6 v náryse a na obr. 7 v pódoryse. Priečnik 11 je v zvislom smere prestaviteFný po tyčiach 12, vodorovné tyčami 13. Spodně dno skrine je valcami 16 striedavo tlačené na obidva priečniky 11. Navlečené ramena 9, nastavené v kolmej polohe, zaisťujú skriňu proti případnému zosunutiu po deformácii.9 9 860 in FIG. 6, and FIG. 7 in a top view. The crossbar 11 is vertically adjustable on bars 12, horizontal bars 13. The bottom of the housing is alternately pressed by cylinders 16 on both cross bars 11. The strung arms 9, set in a perpendicular position, secure the housing against eventual slipping after deformation.

Před skúškou sa na vedení 10 upnú bloky 1, 2 vo vzájomnej vzdialenosti zodpovedajúcej šírke skrine, upínacie ramena 8, 9 alebo priečniky 11, připadne lóžka 14, sú uvoFnené a rozovreté. Skriňa 15 sa uloží na plošiny 4 a podFa druhu skúšky a konStrukčného prevedenia skrine sa ramenami 8, 9 alebo lóžkami 14, připadne prieč-Prior to the test, the blocks 10 are clamped with blocks 1, 2 at a distance corresponding to the width of the housing, the clamping arms 8, 9 or the crossbars 11 or the bed 14, respectively, are released and opened. The cabinet 15 is placed on the platforms 4 and according to the type of test and the design of the cabinet with arms 8, 9 or beds 14, or cross-sections.

Claims

OBJECTS 11, clamp test elements (rootstock walls, pair of legs, cabinet bottom). On the body of the housing 15, it is impregnated with cylinders 16 by repeated nominal test force of alternating sense, the tested elements are stressed - their connection with the whole housing. The blocks 1, 2, arms 8, 9, bed 14 and crossbars 11 are infinitely adjustable, the device allows clamping of cabinets of different construction and dimensions without the addition of other clamping elements in a single-way manner.

The device can be used for mechanical tests of furniture and for rigidity and strength tests of frame constructions.

INVENTION

A device for clamping cabinet furniture in a strength and stiffness test, characterized in that it consists of two identical blocks (1, 2) mounted on a guide (10), each of which is assembled such that on the frame (3) of the blocks (1, 2). 2) the drawbar (5) and the spherical joints (6) are a pendulum-mounted platform (4) for housing the housing (15), the frame (3) being fastened with a mandrel (7) with pulling clamping arms (8, 9) and the frame face (3) the crossbar (11) on the guide rods (12) is connected by the rods (13).