JPH02250729A - Pressure fitting device - Google Patents

Abstract

PURPOSE:To simplify a device by providing a pressure fitting snap equipped with a pressure fitting part bearing part and separating part on the lowermost part of the part magazine which stores the pressure fitting parts with their superposing and making the pressure fitting snap linearly movable between a receiving position and press-fitting position. CONSTITUTION:A pressure fitting part P which is directional is arranged by being superposed in plural pieces in a part magazine 10 and the part P is fed into the magazine 10 from the feeding tube 15 of the upper step. At the lowest end of the magazine 10 a pressure fitting snap 20 equipped with a bearing part 21 and separating part 23 is provided, fitted to the rod tip of a pressure fitting cylinder 25 and moved linearly between the press-fitting position 7 onto a work 5 and the receiving position from the magazine 10. The pressure fitting part P is press-fitted to the work 5 and when the bearing part 21 becoming empty of the snap 20 is returned to the magazine 10 lower end, the part P is pushed by a pushing mechanism 30 and the part P of the lowest part is burne to the bearing part 21 of the snap 20. This is repeated and the part P is press-fitted to the work one by one as holding the directional.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a press-fitting device that can accurately press-fit directional press-fit parts.

<Prior art> Conventionally, as a device for press-fitting a stepped tube-shaped press-fitting part (for example, a part such as a hose joint) that has directionality into a workpiece (product) while maintaining proper directionality, the machine shown in Fig. 4 is used. There is a press-fitting device that is not known in the public domain.

This press-fitting device mainly includes a single-component separating mechanism 50 and a press-fitting snap 60.

The single component separation mechanism 50 includes a shutter 52 and a presser bin 54 that slide to open and close the component passage 51 using a cylinder 55.
It has This one-part separation mechanism 50 is connected to a parts feeder (not shown) via a supply tube 56, and is connected to a parts feeder (not shown) through a supply tube 56, and is connected to a parts feeder (not shown) supplied with press-fit parts P (figure symbols P, ,
.

As the cylinder 55 moves forward, the lowest press-fitted part P1
Only the press-fitted part P2 is sent downward from the delivery hole 53 of the shutter 52, and the next press-fitted part P2 is pressed by the advanced holding pin 54 to hold that position. Then, as the cylinder 55 retreats, the shutter 52 closes the component passage 51, and the press-fitted component P, which had been pressed against the presser bin 54, descends and reaches above the shutter 52, and is newly located at the lowest position. (See Figure 4).

Further, the press-fit snap 60 has a receiving part 61 for the press-fit part P at the tip, and has a hinge mechanism 65 and a rotary cylinder 66.
It is arranged to rotate between a vertical position and a horizontal position. When the press-fit snap 60 is in the vertical position, the press-fit part PI sent out from the single-component separation mechanism 50 is received in the receiving part 61, and when it is in the horizontal position,
The press-fitting part P1 is press-fitted into the press-fitting part 6 of the workpiece 5 by the forward movement of the press-fitting cylinder 68.

<Problem to be solved by the invention> However, in a press-fitting device having such a configuration, the parts 1
Since the individual separation mechanism 50 and the press-fit snap 60 are configured independently, and the press-fit snap 60 is configured to rotate between the receiving position of the press-fit part P and the press-fit position by the hinge mechanism 65. However, there was a problem that the structure became complicated and the device became expensive.

In addition, since the press-fit snap 60 rotates each time the press-fit process is performed, wear of the hinge mechanism is unavoidable, and the vertical and horizontal positions of the press-fit snap 60 tend to become distorted over time. Therefore, there are problems in that the press-fit part P is not properly received into the receiving portion 61, and the press-fit part P is deformed during press-fitting.

Furthermore, since the single-part removal mechanism 50 is fed and moved by the sliding movement of the shutter 52 and the presser pin 54, the movement of the press-fit part P is easily affected by dust, etc., and the press-fit part P may become clogged. There was a problem that smooth transmission could not be performed.

This invention has been made to solve the above problems, and aims to provide a press-fitting device that is simply configured and capable of accurately press-fitting directional press-fitting parts. .

<Means for Solving the Problems> The present invention has been made to achieve the above-mentioned object, and includes stacking and storing a plurality of press-fit parts fed in alignment with their axes parallel to each other, and stacking them in the lower part. A parts magazine having a delivery port, a receiving part for receiving the stacked lowest press-fit parts, and a separation part for separating the lowest press-fit parts from other press-fit parts, and the press-fit parts are A press-fitting snap is provided so that it can be moved linearly back and forth between the receiving position where it is received and the press-fitting position where it is press-fitted into the workpiece, and a press-fitting snap that is provided so that the press-fitted parts stacked in the parts magazine and located at the top can be transferred downward. This is a press-fitting device comprising a pushing mechanism.

Function> This invention is constructed as described above, and in the initial state, the receiving part of the press-fit snap is located directly below the delivery port of the parts magazine, and the receiving part of the plurality of press-fit parts is placed at the lowest position. At the same time, align the direction in the parts magazine,
And they are stacked with their respective axes parallel to each other. Further, press-fit parts whose directionality has been aligned are fed following the stacked uppermost press-fit parts.

When the press-fit snap was driven forward, the receiving part moved linearly forward while receiving the lowest press-fit part, and the separating part also moved together and was located at the second position from the bottom. Go below the press-fit parts. At this time, the stacked press-fit parts, excluding the press-fit part at the bottom, are guided by the component magazine on their axial and left-right sides, and the press-fit snaps, which maintain their initial positions, move forward and reach the press-fit position. ,
A press-fitting part is press-fitted into a press-fitting part of a workpiece.

After the press-fitting operation is completed, the press-fitting snap moves backward and its receiving portion returns to the receiving position. As a result, the press-fit parts that were previously stacked and supported by the separating section will be moved downward one by one, except for the topmost one.
The second press-fitted part from the bottom is now received by the receiving part and positioned at the lowest position.

At this time, the rear part of the uppermost press-fitted part is pressed by the following press-fitted parts, and the press-fitted part is in a pinched state with the parts magazine and suspended in the air. By moving this suspended uppermost press-fitted part downward one space eight rows, the first subsequent press-fitted part is newly stacked as the uppermost press-fitted part.

<Embodiment> An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

FIG. 1 is an overall configuration diagram of the press-fitting device of the present invention, and FIG.
The figure is an enlarged perspective view of the press-fit snap.

This press-fitting device includes a parts magazine 10 connected to a parts feeder (not shown) via a supply tube 15, a receiving part 211 and a separating part 23, and a receiving position 17 and a press-fitting position 7.
It is mainly composed of a press-fitting snap 20 that reciprocates in a straight line between Placement section 2 serving as a positioning jig in step 5
It is arranged on a base 1 equipped with. The press-fitting part P suitable for press-fitting with this press-fitting device has a rough shape of a stepped tube as shown in FIG.
It has a press-fitting end Pa having a slightly smaller diameter for press-fitting into the press-fitting part 6 of the workpiece 5 at one end.

The parts magazine 10 is made of a cylindrical body with a rectangular cross-sectional shape, and inside thereof, a plurality of press-fit parts P are formed with their axes in a horizontal state so that they can be stacked. The cylindrical body is attached to the base 1 via the support member 3 so as to extend vertically with the outlet 11, which is one open end of the cylindrical body, facing downward.

A supply port 12 is provided at a predetermined position in the upper part of the parts magazine 10, and a press-fitted part P from a parts feeder can be fed into the supply port 12 with its axis in the horizontal direction.
A supply tube 15 is connected. Furthermore, a transparent window (not shown) is provided on a predetermined side surface of the parts magazine 10 so that the stacked press-fit parts P can be seen. Furthermore,
A presence/absence confirmation sensor 33, which constitutes a part of the pushing mechanism 30, is arranged at a predetermined position of the parts magazine 10.

In the embodiment, the press-fit snap 20 includes a receiving part 21 provided at the tip end and receiving the press-fit part P in a recumbent manner, and a horizontal separating part 23 provided continuously therewith.

The receiving part 21 is formed in a U-shaped groove shape that can receive the large diameter part of the press-fitted part P, and the depth d from the surface of the separating part 23 is as follows.
It is formed to be slightly smaller in diameter than the large diameter portion of the press-fit part P. Moreover, the groove section 1 from the pressing surface 21a to the tip is as follows:
The length is slightly smaller than the length of the large diameter part. Therefore, when the press-fit part P is received in the receiving part 21, the uppermost surface of the outer periphery of the press-fit part P is slightly higher than the separation part 23 surface. It protrudes more slightly, and the press-fit end Pa protrudes forward and is received. This press-fit snap 20 has a rod that is prevented from rotating in the circumferential direction, and is attached to the rod tip of a press-fit cylinder 25 arranged horizontally.

When the press-fit cylinder 25 is retracted, the receiving portion 21 of the press-fit snap 20 is located at the receiving position 17 directly below the outlet 11 as shown in FIG. Part P has been accepted. Further, when moving forward, the press-fitting part P is configured to be press-fitted into the press-fitting part 6 of the workpiece 5 by reaching a press-fitting position 7 close to the workpiece 5 as shown by the two-dot chain line in FIG.

In the embodiment, the pushing mechanism 30 includes a cylinder 31 and a presence/absence confirmation sensor 33.

The cylinder 31 has a pushing head 32 at its rod tip.
is disposed above the upper open end of the parts magazine 10 with the pushing head 32 facing downward.

The presence/absence confirmation sensor 33 is composed of a proximity switch, and detects whether or not there is a press-fitted part P at that height position, and when there is a press-fitted part P, it sends a rising signal to raise the cylinder 31, and when there is no one, it sends a falling signal to lower it. is configured to output.

When there is no press-fit part P at the height position of the presence confirmation sensor 33, the push head 32 of the cylinder 31 is lowered by a lowering signal, and the press-fit part P located at the highest position in the parts magazine 10 is moved downward. It is formed like this.

The presence/absence confirmation sensor 33, the press-fit cylinder 25, and the cylinder 31 are each connected to a control device (not shown) and are configured to operate in a predetermined order.

Next, the operation of the press-fitting device configured as described above will be explained.

In the initial state of the device, the press-fit cylinder 25 is retracted and the receiving part 21 of the press-fit snap 20 is in the receiving position 17. Then, the press-fit parts PI of the receiving part 21 (for convenience of explanation, the press-fit parts P are sent out in the order of P+, Pi, Ps...
) at the lowest position, and parts magazine 1
0, press-fit parts P, -P1 are stacked with their press-fit ends Pa facing right in the figure and their axes oriented horizontally.

Further, press-fit parts P♂, p, . . . are continuously fed to the rear side of the press-fit part py via the supply tube 15.

Further, the presence/absence confirmation sensor 33 outputs a rise signal because the press-fitting part P6 is at that height position, and the cylinder 31 rises to raise the pushing head 32 to a position separated from the press-fitting part P. The workpiece 5 is placed on the mounting portion 2 with its press-fitting portion 6 facing the press-fitting snap 2o (see FIG. 3A).

When a press-fit start signal is issued from the control device, the press-fit cylinder 25 moves forward and the press-fit snap 2° moves to the right in the figure. As a result, the press-fit parts P in the receiving part 21 are paid out together with the press-fit snaps 20, and the separation part 23 comes below the parts magazine 10. That is, from among the stacked press-fit parts P + "" P t, only the lowest P+ is separated and moved to the press-fit position 7, and the remaining press-fit parts 22 to P1 remain at the initial height position. ing.

The press-fitting end Pa of the press-fitting part P is press-fitted into the press-fitting part 6 of the workpiece 5 by the forward output of the press-fitting cylinder 25 (see FIG. 3B).

Subsequently, the press-fit cylinder 25 retreats, and the press-fit snap 20
moves to the receiving position 17. Then, when the receiving part 21 returns to the receiving position type 7, the press-fitted part P, which has been maintained at the initial height position by the separating part 23, is moved to the receiving part 21.
The press-fit parts P and P6 above the press-fit parts P and P6 are each lowered by one part.

At this time, the press-fit part P1 at the top is pressed in the axial direction by the press-fit parts Pa state (see Figure 3 C).

Due to this suspended state of the press-fit part P7, the press-fit part P is no longer at the height position of the presence/absence confirmation sensor 33, and the presence/absence confirmation sensor 33 outputs a descending signal. As a result, the cylinder 31 of the pushing mechanism 30 is actuated, and the pushing head 32 is lowered to push the axis of the press-fitted part P7 downward in a substantially horizontal state. Therefore, the press-fitted part P1 moves to the height position of the presence/absence confirmation sensor 33, and the top surface of its outer periphery is at the supply port 12.
, and the subsequent press-fitted part Pa moves forward in the axial direction (see the third diagram).

Then, a rising signal is emitted from the presence confirmation sensor 33,
The cylinder 31 retreats and the pressing head 32 rises. As a result, the press-fitted part P8 moves into the parts magazine 10 and is newly located at the uppermost position. Further, in the supply tube 15, further subsequent press-fit parts P9...
is fed forward one piece at a time, resulting in the initial state of the second cycle (see FIG. 3E).

Note that this invention is not limited to the above-mentioned inventions and sections, and the embodiments thereof may be modified without departing from the technical idea of this invention6.For example, the receiving portion of a press-fit snap may be The shape is not particularly limited as long as it can accept press-fit parts.

Further, the presence/absence confirmation sensor is not limited to a proximity switch, but may be a photoelectric switch, a touch switch, or the like. Furthermore, a timer may be built into the control device to control the operation of the cylinder of the pushing mechanism.

<Effects of the Invention> As explained above, the press-fitting device of the present invention includes a parts magazine that stores a plurality of press-fitted parts fed in alignment in a stacked manner with their axes parallel to each other, and has a delivery port at the bottom; It includes a receiving part that receives the lowest stacked press-fit part and a separation part that separates the lowest press-fit part from other press-fit parts, and a receiving position that receives the press-fit part and a press-fit position that press-fits it into the workpiece. The configuration includes a press-fit snap that can be moved linearly back and forth between By the linear movement of the snap, only one press-fitting part can be separated and moved to the press-fitting position for press-fitting, thereby simplifying the single-component separation mechanism and the drive mechanism of the press-fitting snap. Further, unlike the conventional example, a hinge mechanism for rotating the press-fit snap is not required, and the device can be constructed simply and at low cost.

In addition, since there is no hinge mechanism that rotates frequently, there is less chance of misalignment of the operating axis of the press-fit snap, increasing the durability of the device, and preventing the press-fit part from being poorly received in the receiving part and deforming the press-fit part during press-fit. It is possible to prevent inconveniences such as

Furthermore, since the press-fit parts are stacked with their axes horizontal and lowered one by one, inconveniences such as the orientation of the press-fit parts being reversed when moving into the parts magazine and into the receiving part are prevented. As described above, the press-fitting device of the present invention allows press-fitting parts to be smoothly fed out while maintaining proper directionality.The press-fitting device of the present invention stores an appropriate amount of press-fitted parts having directionality in the parts magazine, and allows the press-fitted parts to be delivered smoothly from the parts feeder. This has the effect of buffering variations in the feeding of press-fit parts and allowing the press-fit parts to be press-fitted smoothly and accurately.In addition, the parts fed by the roller conveyor are extruded by a cylinder and sent to the next process. The processing equipment constructed as follows was
Although disclosed in Japanese Patent No. 23745, such a configuration cannot be applied to processing parts with directionality.

[Brief explanation of drawings]

Fig. 1 is an overall configuration diagram of a press-fitting device according to an embodiment of the present invention, Fig. 2 is an enlarged perspective view of a press-fitting snap, and Fig. 3A-
E is an explanatory diagram showing the operating state of the device, and FIG. 4 is an overall configuration diagram of a press-fitting device shown in the prior art. 5... Workpiece, 7... Press-fitting position, 10... Parts magazine, 17... Receiving device, 20... Press-fitting snap, 21... Receiving part, 23... Separating part, 30 ...Pushing mechanism, P...Press-fitting parts.

Claims (1)

[Scope of Claims] A parts magazine that accommodates a plurality of press-fit parts that are fed in alignment in a stacked manner with their axes parallel to each other and has a delivery port at the bottom; and a parts magazine that receives the lowest stacked press-fit parts. The press-fitting part is provided with a receiving part for receiving the press-fitting part and a separating part for separating the lowest press-fitting part from other press-fitting parts, and is capable of linear reciprocating movement between a receiving position for receiving the press-fitting part and a press-fitting position for press-fitting it into the workpiece. A press-fitting device comprising: a press-fitting snap provided therein; and a pushing mechanism provided to be able to move downwardly a press-fitted part that is stacked in the parts magazine and located at the top.