Fixed and positioner of rectangular shape test card

The utility model discloses a fixed and positioner of rectangular shape test card, including ka tuo and test card, the card holds in the palm to go up to open to have and is used for placing the draw-in groove of test card, the draw -in groove is a bit larger tham the test card, the card asks the top to be provided with the preforming, preforming part cover in directly over the draw -in groove, the bottom of draw -in groove and a lateral wall are opened there is the through -hole, be provided with elasticity ejection mechanism in the through -hole, elasticity ejection mechanism with still beprovided with the ball between the test card. This scheme is through using the ball to replace the panel beating thin slice to advance line location with fixed to the test card, and the face contact that changes the thin slice formula is the point contact, has reduced the test card in location or surface wearing and tearing when fixed, simultaneously, the ball under elasticity ejection mechanism'seffect, can be better with