JPS6234348U

JPS6234348U -

Info

Publication number: JPS6234348U
Application number: JP12530885U
Authority: JP
Priority date: 1985-08-15
Filing date: 1985-08-15
Publication date: 1987-02-28

Description

[Brief explanation of drawings]

第１図は、この考案の一実施例を示す衝撃試験
機の構成図、第２図はこの考案の制御ブロツク図
、第３図はこの考案の動作タイミング図、第４図
はこの考案の負荷検出動作説明図、第５図は従来
の衝撃試験機の構成図、第６図は従来の制御ブロ
ツク図、第７図は従来の動作タイミング図である
。図において、１は落下台、２は衝撃パツド、３
は緩衝台、４は支柱、５は案内棒、８は昇降円筒
、９はモータ、１４はブレーキ、１５はモータ駆
動部、１８はロータリーエンコーダ、１９は負荷
検出部、２２はプログラマブル・カウンタ、２３
は高さ設定器である。なお、図中、同一符号は、
同一又は相当部分を示す。 Fig. 1 is a block diagram of an impact testing machine showing an embodiment of this invention, Fig. 2 is a control block diagram of this invention, Fig. 3 is an operation timing diagram of this invention, and Fig. 4 is a load diagram of this invention. Detection operation explanatory diagram, FIG. 5 is a configuration diagram of a conventional impact testing machine, FIG. 6 is a conventional control block diagram, and FIG. 7 is a conventional operation timing diagram. In the figure, 1 is a drop table, 2 is an impact pad, and 3
1 is a buffer table, 4 is a column, 5 is a guide rod, 8 is an elevating cylinder, 9 is a motor, 14 is a brake, 15 is a motor drive section, 18 is a rotary encoder, 19 is a load detection section, 22 is a programmable counter, 23
is a height setter. In addition, the same symbols in the figure are
Indicates the same or equivalent part.

Claims

[Scope of utility model registration request]

A drop table, a guide rod that guides the drop table, a column that supports the guide rod, an impact pad and a buffer table that receive the drop table, and an elevating cylinder that raises and lowers the drop table along the guide rod; In an impact testing machine that includes an elevating drive motor that drives the elevating cylinder, a drive unit that drives the drive motor, and a fall prevention brake that fixes the falling table to the guide rod, the axis of the elevating drive motor is connected to
A rotary encoder that generates a signal proportional to the moving distance of the falling table, a height setting device that sets the falling height, and a height setting device that is provided between the driving section and the lifting drive motor, so that the lifting cylinder rises. and a load detection circuit that detects the initial height position of the dropping platform by utilizing the fact that the drive current of the lifting drive motor increases due to a change in the load weight that occurs when it comes into contact with the dropping platform; The output of the rotary encoder is counted by the output of the load detection circuit, and when the counted value reaches the set value of the height setting device, a height setting signal is generated to stop the lifting drive motor. An impact testing machine characterized by comprising an automatic height setting section.