JP7215856B2 - positioning device - Google Patents

Description

The present invention relates to manual positioning devices.

The manual positioning device includes, for example, a base, a table (stage) arranged on the base so as to move back and forth in one direction (for example, the X-axis direction), a grip provided on the table, and one end of the base. and a stopper portion. A worker can determine the position of the table in one direction by grasping the grip portion, sliding the table, and pressing the table against the stopper portion. For example, in order to position an object to be positioned such as a rectangular battery cell from a work set or a rough set, an operator pulls a table and presses the table against a stopper to position the object. was Such a manual positioning device does not require an electric power source (electric motor, air supply device, etc.), and is preferable from the viewpoint of energy saving and environment. On the other hand, an automatic positioning device is provided with an electric drive source such as a ball screw and a motor or an actuator, as disclosed in Japanese Unexamined Patent Application Publication No. 2004-223647. Since the automatic positioning device has an electric drive source, the purchase cost and running cost are high.

JP-A-2004-223647

As described above, an automatic positioning device cannot be easily introduced into a factory line or the like in terms of cost and environmental friendliness. On the other hand, a manual positioning device is operated by an operator, and there is a possibility that positioning may vary depending on the operator.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a positioning device capable of improving positioning accuracy without using an electric power source.

In a factory line, the positioning apparatus of the present invention slides a table, which is pulled forward by an operator and on which a workpiece or a rough set object to be positioned is set, to the stopper portion to push the object to be positioned. A positioning device for positioning a base, two linear guides fixed on the base and extending in parallel in the front-rear direction, and arranged on the base and guided in the front-rear direction by the linear guides . the table; the stopper portion that is fixed on the base and abuts against the table to restrict rearward movement of the table; a grip portion provided on the table that can be gripped by an operator; a pulling part that applies a pulling force to the rear of the table without using electric power and brings the table into contact with the stopper part with a predetermined pressing force; and an elastic member that adjusts the moving speed of the table, and the pulling part is configured to apply a constant pulling force to the table to the rear and press the table against the stopper part with a constant force. The table is a constant force spring, the table is formed in a flat plate shape, the stopper portion is formed in a rectangular parallelepiped shape whose width in the left-right direction is larger than the width in the front-rear direction, and at the center of the rear end of the table When viewed from above, a recessed portion is formed in the forward direction, and the opening width of the recessed portion in the left-right direction is larger than the width of the stopper portion in the left-right direction. The bottom surface of the concave portion is orthogonal to the front-rear direction and orthogonal to the top surface of the base, and the rear end surface of the stopper portion facing the bottom surface is orthogonal to the front-rear direction and to the top surface of the base. When the table is slid forward and then released by the operator, the constant force spring causes the table to slide backward and contact the stopper portion with the constant force.

In accordance with the present invention, a non-motorized puller is used as the power source, which is cost effective and environmentally effective. In addition, the operator can slide the table in the other direction in a predetermined direction with arbitrary force, and when the operator releases the hand after sliding, the table is automatically slid to the stopper portion by the pulling portion, and the stopper portion moves to the predetermined position. Positioned by abutting force. That is, regardless of the force with which the operator pulls the table, the table can be brought into contact with the stopper portion with a predetermined force, thereby suppressing variation in positioning and improving positioning accuracy.

FIG. 2 is a plan view (view from above) of the positioning device of the present embodiment; It is a side view (view seen from the right) of the positioning device of the present embodiment. 1 is a front view (as seen from the rear) of a positioning device of this embodiment; FIG.

An embodiment of the present invention will be described below with reference to the drawings. Each figure used for explanation is a conceptual diagram, and the shape of each part may not necessarily be exact.
As shown in FIGS. 1, 2, and 3, the positioning device 1 of this embodiment includes a base 2, two linear guides 3, a table 4, a stopper portion 5, a grip portion 6, and a fixed position. It has a load spring (corresponding to a “tension part”) 7 and an elastic member 8 . The base 2 is a fixed pedestal and a planar metal member. A linear guide (corresponding to a “guide portion”) 3 is known guide means composed of, for example, rails and ball bearings. The two linear guides 3 are each fixed on the base 2 and extend parallel to the X-axis direction (corresponding to the "predetermined direction").

Hereinafter, in the description, the X-axis direction is defined as the front-rear direction, one side of the X-axis direction is defined as "rear", and the other side of the X-axis direction is defined as "front". Also, the Y-axis direction orthogonal to the X-axis on the plane of the base 2 is defined as the left-right direction, one side of the Y-axis direction is defined as "right", and the other side of the Y-axis direction is defined as "left". Also, the Z-axis direction orthogonal to the X-axis and the Y-axis is defined as the vertical direction, one side of the Z-axis direction is defined as "up", and the other side of the Y-axis direction is defined as "down".

The table 4 is a plate-shaped metal member, and is also called a stage. The table 4 is arranged on the base 2 and guided in the front-rear direction by the linear guides 3 . The stopper portion 5 is a rectangular parallelepiped metal member that is fixed on the base 2 and abuts on the table 4 to restrict the rearward movement of the table 4 . The stopper portion 5 is provided at the rear end portion of the base 2 and protrudes upward from the base 2 . note that. The table 4 has a concave shape at a portion where the stopper portion 5 abuts.

The gripping portion 6 is a member provided on the table 4 so as to be grippable by the operator. The grip portion 6 is installed at the front end portion of the table 4, protrudes upward from the table 4, and is formed in a U shape with an open bottom.

The constant load spring 7 is configured to apply a tensile force to the table 4 without using electric power to bring the table 4 into contact with the stopper portion 5 with a predetermined pressing force. The constant load spring 7 is a member that applies a constant tensile force to the rear of the table 4 . The constant force spring 7 has a well-known configuration, and is configured by a mainspring or the like. The constant load spring 7 is installed at the rear end of the base 2 , and the tip of the mainspring to which a tensile force is applied is fixed to the rear end of the table 4 . The tip of the constant force spring 7 fixed to the table 4 is located on the extension line of one linear guide 3 (left side here). The constant load spring 7 is arranged on the extension line of the left linear guide 3 in the extending direction so that a force is applied to the linear guide 3 in the extending direction. That is, when viewed from above (see FIG. 1), the connecting portion (fixed portion) between the constant force spring 7 and the table 4 is on the extension line of at least one of the linear guides 3 (the extension when the linear guide 3 is extended backward). above the linear guide 3).

The elastic member 8 is a member that is fixed on the base 2 and adjusts the moving speed of the table 4 by coming into contact with the table 4 . The elastic member 8 is a rubber pad projecting in a cylindrical shape from the base 2 , and a plurality of elastic members 8 are installed on the base 2 . The elastic members 8 are composed of, for example, four rubber pads, and are arranged at two rear corners (two corners) of the base 2 .

Under the guidance of the linear guide 3, the table 4 is pulled by the operator and moves forward. move to Then, before the table 4 and the stopper portion 5 contact each other, the lower surface of the table 4 comes into contact with the elastic member 8 and the table 4 slides against the elastic member 8 . As a result, the moving speed of the table 4 is reduced, and the table 4 and the stopper portion 5 slowly come into contact with each other.

According to this embodiment, the action of the constant force spring 7 allows the operator to move the table 4 with a constant force, and the table 4 is automatically positioned by the stopper portion 5, thereby improving the positioning accuracy. can be made According to this embodiment, the operator only has to pull the table 4 with the holding portion 6, which improves workability. Moreover, since the constant force spring 7 is not electric, it is excellent in terms of cost and environment. Further, the constant force spring 7 moves the table 4 backward at a predetermined moving speed, and enables pressing against the stopper portion 5 with a constant load. Further, the structure in which the constant force spring 7 is combined with the elastic member 8 reduces the contact speed between the table 4 and the stopper portion 5 while maintaining the load applied to the stopper portion 5, thereby improving durability and safety. make it possible.

According to the present embodiment, it is possible to suppress variation in positioning by the operator even in the powerless and airless configurations. The pressing force of the table 4 against the stopper portion 5 varies depending on the operator, but according to this configuration, a constant pressing force can be realized without electric power. In addition, by employing the linear guide 3, it is possible to suppress the occurrence of metal foreign matter and the occurrence of scratches due to rubbing between metals. The positions of the table 4 in the Y-axis direction and the Z-axis direction are determined by the linear guides 3, and the position of the table 4 in the X-axis direction is determined by pressing the table 4 against the stopper portion 5 (pressing mechanism).

Thus, according to this embodiment, the non-electric constant force spring 7 is used as the power source, which is effective in terms of cost and environment. Further, the operator can slide the table 4 forward with a constant force, and when the operator releases the hand after sliding, the table 4 is automatically slid to the stopper portion 5 by the constant force spring 7, and the stopper portion 5 is pushed forward. is positioned by contacting with a constant force (predetermined force). That is, regardless of the force with which the operator pulls the table 4, the table 4 can be finally brought into contact with the stopper portion 5 with a constant force (predetermined force). can be improved. In addition, positioning by a pin becomes unnecessary, workability can be improved, and the occurrence of scuffing or the like can be suppressed. In addition, it is possible to suppress deformation and damage to the positioning object due to the operator's strong pressing against the stopper portion.

In addition, this invention is not limited to the said embodiment. For example, the linear guide 3 may be another linear motion component. Also, two constant force springs 7 may be provided corresponding to the two linear guides 3 . Moreover, instead of the constant force spring 7, the tensioning portion of the present invention may be, for example, a magnet or other spring type tensioning means. Also, the elastic member 8 may be arranged at any possible position.

DESCRIPTION OF SYMBOLS 1... Positioning device, 2... Base, 3... Linear guide (guide part), 4... Table, 5... Stopper part, 6... Grasping part, 7... Constant load spring (tension part), 8... Elastic member.

Claims (3)

In a factory line, a positioning device that positions an object to be positioned by sliding a table, which is pulled forward by an operator and on which a workpiece or a rough set object to be positioned is set, against a stopper portion. hand,
a base;
two linear guides fixed on the base and extending in parallel in the front-rear direction;
the table arranged on the base and guided in the front-rear direction by the linear guide ;
the stopper portion fixed on the base and abutting on the table to restrict rearward movement of the table;
a gripping portion provided on the table so as to be grippable by an operator;
a pulling part that applies a pulling force to the table backward without using electric power and brings the table into contact with the stopper part with a predetermined pressing force;
an elastic member that is fixed on the base and adjusts the moving speed of the table by contacting the table;
with
The pulling part is a constant force spring configured to apply a constant pulling force to the table rearward and press the table against the stopper part with a constant force,
The table is formed in a flat plate shape,
The stopper portion is formed in a rectangular parallelepiped shape having a width in the left-right direction that is larger than the width in the front-rear direction,
At the center of the rear end of the table, a concave portion is formed that is concave forward when viewed from above,
an opening width of the concave portion in the left-right direction is larger than a width of the stopper portion in the left-right direction;
a bottom surface of the concave portion that abuts on the stopper portion is orthogonal to the front-rear direction and orthogonal to the upper surface of the base;
a rear end surface of the stopper portion facing the bottom surface is orthogonal to the front-rear direction and orthogonal to the upper surface of the base;
When the operator releases the table after it has been slid forward, the constant force spring causes the table to slide backward and abut against the stopper portion with the constant force.
positioning device. When viewed from above, the stopper portion is accommodated in the concave portion while being in contact with the table.
Positioning device according to claim 1. 3. The tip of the constant force spring according to claim 1 or 2, which is fixed to the rear end of the table at a rear position on an extension line of at least one of the linear guides when viewed from above. positioning device.

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