TWI628053B - O-ring insertion device and o-ring insertion method - Google Patents

Abstract

The invention provides an O-ring mounting device for mounting an O-ring to a non-circular groove. The O-ring mounting device includes a clamping arm for holding the O-ring; a pressing arm for pressing the O-ring into the non-circular groove; and a control unit for controlling the pressing arm Moving along the non-circular groove, and controlling the clamping arm to move in a tangential direction on the non-circular groove corresponding to a position of the pressing arm.

Description

O-ring installation device and method

The present invention relates to an O-ring installation device and an O-ring installation method, and more particularly to an O-ring installation device and an O-ring installation method capable of mounting an O-ring to a non-circular groove.

In the prior art, an automated O-ring installation device generally includes an expansion mechanism and a press-in mechanism. The expansion mechanism is used to radially expand the O-ring outward. The pressing mechanism is used to press the O-ring into an O-groove. However, when the O-ring is to be installed in an irregular or non-circular groove, the automated O-ring installation device requires more complicated expansion mechanisms and press-in mechanisms to perform the installation, thereby increasing the development of automated O-ring installation devices cost. Furthermore, the expansion mechanism and the press-in mechanism of the automatic O-ring installation device can only correspond to one specific shape of the groove. When the O-ring is to be installed in another shape of the groove, the automatic O-ring installation device needs to cooperate Other types of expansion mechanisms and press-in mechanisms. Therefore, the prior art automatic O-ring installation device is inefficient in use.

The invention provides an O-ring mounting device for mounting an O-ring to a non-circular groove. The O-ring mounting device includes a clamping arm for holding the O-ring; a pressing arm for pressing the O-ring into the non-circular groove; and a control unit for controlling the pressing arm Move along the non-circular groove Moving, and controlling the clamping arm to move in a tangential direction on the non-circular groove corresponding to the position of the pressing arm.

In an embodiment of the O-ring mounting device of the present invention, the O-ring mounting device further includes a base, wherein the clamping arm and the pressing arm are disposed on the base; and a rotating mechanism connected to the base, The base is rotated to rotate the clamping arm relative to the pressing arm.

In an embodiment of the O-ring mounting device of the present invention, the rotation axes of the rotating mechanism and the pressing arm are the same.

In an embodiment of the O-ring installation device of the present invention, the clamping arm includes a chuck for clamping or releasing the O-ring.

In an embodiment of the O-ring installation device of the present invention, the pressing arm is located behind the clamping arm when the pressing arm is moved.

In an embodiment of the O-ring installation device of the present invention, the control unit is further configured to store the coordinates of the non-circular groove, and determine the movement paths of the pressing arm and the clamping arm according to the coordinates of the non-circular groove.

The invention further provides an O-ring installation method for mounting an O-ring to a non-circular groove. The installation method includes providing a clamping arm to hold the O-ring; and providing a pressing arm to press the O-ring. Loop into the non-circular groove; and a control unit controls the pressing arm to move along the non-circular groove, and controls the clamping arm to move along the tangential direction of the non-circular groove corresponding to the position of the pressing arm.

In an embodiment of the O-ring installation method of the present invention, the O-ring installation method further includes inputting the coordinates of the non-circular groove to the control unit; and the control unit determines the pressing arm and the non-circular groove according to the coordinates of the non-circular groove. The movement path of the clamping arm.

In an embodiment of the O-ring installation method of the present invention, when the pressing arm moves, it is located behind the clamping arm.

100‧‧‧O-ring installation device

110‧‧‧base

120‧‧‧ Clamping Arm

122‧‧‧ Collet

130‧‧‧Press arm

140‧‧‧Rotating mechanism

150‧‧‧control unit

200‧‧‧flow chart

210 to 230‧‧‧ steps

L1‧‧‧ Tangent

L2‧‧‧ Tangent

R‧‧‧O-ring

T‧‧‧Non-circular groove

P1‧‧‧First position

P2‧‧‧Second position

P3‧‧‧Third position

P4‧‧‧Fourth position

Z‧‧‧ rotation axis

FIG. 1 is a schematic diagram of an O-ring mounting device according to the present invention.

FIG. 2 is a schematic diagram of mounting the O-ring to a non-circular groove by the O-ring mounting device of the present invention.

FIG. 3 is a schematic diagram of mounting the O-ring to a non-circular groove by the O-ring mounting device of the present invention.

Fig. 4 is a flowchart of an O-ring mounting method according to the present invention.

Please refer to Figure 1. FIG. 1 is a schematic diagram of an O-ring mounting device according to the present invention. As shown in FIG. 1, the O-ring installation device 100 of the present invention includes a base 110, a clamping arm 120, a pressing arm 130, a rotating mechanism 140, and a control unit 150. The clamping arm 120 is disposed on the base 110, and the clamping arm 120 includes a clamping head 122 for clamping or releasing an O-ring. The pressing arm 130 is disposed at another position on the base 110 for pressing the O-ring into a groove. The rotating mechanism 140 is connected to the base 110 for rotating the base 110 to rotate the clamping arm 120 relative to the pressing arm 130. In this embodiment, the rotation axes Z of the rotating mechanism 140 and the pressing arm 130 are the same, but the present invention is not limited thereto. The control unit 150 is configured to control the clamping arm 120 and the pressing arm 130 to move along a predetermined path, and control the clamping arm 120 to rotate relative to the pressing arm 130. For example, the control unit 150 may control the position and the rotation angle of the rotating mechanism 140 to further control the clamping arm. 120 and the movement path of the pressing arm 130.

Please refer to Figure 2 and Figure 3 together, and also refer to Figure 1. 2 and 3 are schematic diagrams of mounting the O-ring to a non-circular groove by the O-ring mounting device of the present invention. As shown in the figure, when the O-ring mounting device 100 of the present invention requires an O-ring R to be mounted on a non-circular groove T, the user may first input the coordinates of the non-circular groove T to the control unit 150. The control unit 150 may first store the coordinates of the non-circular groove T, and then determine the movement paths of the pressing arm 130 and the clamping arm 120 according to the coordinates of the non-circular groove T. When the control unit 150 controls the gripping arm 120 and the pressing arm 130 to move, the pressing arm 130 is located behind the gripping arm 120 to press the O-ring R held by the gripping arm 120, and further press the O-ring R A part is installed in the non-circular groove T. In addition, the control unit 150 can be used to control the pressing arm 130 to move along the non-circular groove T, and to control the clamping arm 120 to move along the tangential direction of the non-circular groove T corresponding to the position of the pressing arm 130. For example, when the pressing arm 130 moves to a first position P1, the clamping arm 120 moves to a second position P2, and the second position P2 is a tangent line in the non-circular groove T corresponding to the first position P1 L1; and when the pressing arm 130 is moved to a third position P3, the clamping arm 120 is moved to a fourth position P4, and the fourth position P4 is a tangent to the non-circular groove T corresponding to the third position P3 On L2. In other words, the pressing arm 130 moves along the non-circular groove T, and the clamping arm 120 moves along the tangential direction of the position of the non-circular groove T corresponding to the position of the pressing arm 130.

According to the above configuration, when the pressing arm 130 moves along the non-circular groove T, the O-ring R will be straightened by the clamping arm 120 in a tangential direction of the position of the non-circular groove T corresponding to the pressing arm 130. Therefore, the O-shape The outer edge of a part of the ring R pressed by the pressing arm 130 will be aligned with the inner wall of the non-circular groove T, so that the pressing arm 130 can easily press the O-ring R into the non-circular groove T. Furthermore, the control unit 150 can determine the movement paths of the clamping arm 120 and the pressing arm 130 according to the non-circular grooves of different shapes. Therefore, the O-ring mounting device 100 of the present invention can be applied to various non-circular grooves of different shapes, and The use efficiency of the O-ring mounting device 100 of the present invention is increased.

On the other hand, in the above embodiment, the clamping arm 120 and the pressing arm 130 are disposed on the base 110 to move and rotate together, but the present invention is not limited thereto. In other embodiments of the present invention, the O-ring mounting device may not include a base, and the control unit 150 may control the clamping arm 120 and the pressing arm 130 to move and rotate, respectively.

Please refer to Figure 4. FIG. 4 is a flowchart 200 of an O-ring installation method according to the present invention. The flow of the O-ring installation method of the present invention is as follows: step 210: providing a clamping arm 120 to hold the O-ring R; step 220: providing a pressing arm 130 to press the O-ring R into the non-circular groove T; 230: The control unit 150 controls the pressing arm 130 to move along the non-circular groove T, and controls the clamping arm 120 to move along the tangential direction of the non-circular groove T corresponding to the position of the pressing arm 130.

In addition, the O-ring installation method of the present invention may also include other steps between the above steps.

Compared with the prior art, the O-ring installation device of the present invention can control the pressing arm to move along the non-circular groove according to the shape of the non-circular groove, and control the clamping arm along the tangential direction of the position of the non-circular groove corresponding to the pressing arm It moves so that the pressing arm can easily press the O-ring into the non-circular groove, so the O-ring installation device of the present invention has a higher O-ring installation efficiency. Furthermore, the O-ring installation device of the present invention can be applied to various non-circular grooves of different shapes, and no mechanism needs to be changed. Therefore, the O-ring installation device of the present invention has better use efficiency. The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the scope of patent application of the present invention shall fall within the scope of the present invention.

Claims (9)

An O-ring mounting device is used to mount an O-ring to a non-circular groove. The O-ring mounting device includes: a clamping arm for holding the O-ring; a pressing arm for Pressing the O-ring into the non-circular groove; and a control unit for controlling the movement of the pressing arm along the non-circular groove, and controlling the position of the clamping arm along the non-circular groove corresponding to the pressing arm Move in tangential direction. The O-ring installation device according to claim 1, further comprising: a base, wherein the clamping arm and the pressing arm are disposed on the base; and a rotating mechanism connected to the base to rotate the base to The clamping arm is rotated relative to the pressing arm. The O-ring mounting device according to claim 2, wherein the rotation axes of the rotating mechanism and the pressing arm are the same. The O-ring mounting device according to claim 1, wherein the clamping arm includes a chuck for clamping or releasing the O-ring. The O-ring mounting device according to claim 1, wherein the pressing arm is positioned behind the clamping arm when the pressing arm moves. The O-ring installation device according to claim 1, wherein the control unit is further configured to store the coordinates of the non-circular groove, and determine the movement paths of the pressing arm and the clamping arm according to the coordinates of the non-circular groove. An O-ring mounting method for mounting an O-ring to a non-circular groove. The mounting method includes: providing a clamping arm to clamp the O-ring; providing a pressing arm to press the O-ring to the non-circular groove. A circular groove; and a control unit controlling the pressing arm to move along the non-circular groove, and controlling the clamping arm to move along the tangential direction of the non-circular groove corresponding to the position of the pressing arm. The O-ring installation method according to claim 7, further comprising: inputting the coordinates of the non-circular groove to the control unit; and the control unit determining the movement of the pressing arm and the clamping arm according to the coordinates of the non-circular groove. path. The O-ring installation method according to claim 7, wherein the pressing arm is positioned behind the clamping arm when the pressing arm moves.