JPH0516074U - Metal fittings feeding device - Google Patents

Abstract

(57) [Summary] [Purpose] Efficiently insert two or more metal fittings into the insertion holes at one time. Detects metal fittings in the opposite direction and insertion errors. [Structure] The receiving member 10 having the receiving holes 10a to 10c is moved by the cylinders 18 and 19 to the line-up intervals of the receiving holes, and the metal fittings W of the feeder 8 are received in the respective receiving holes. The stopper 12 stops the metal fittings while the receiving member is moving. The actuator 17 raises the metal fittings by the rotation of the receiving member. The moving devices 42 and 43 move the gripping device 2 to X, Y
Move in the direction. The gripping device grips a plurality of metal fittings with the flexible members 27 of the pair of grippers 23 without loosening. Cylinder 3
2, 33, the gripping device is moved up and down to pull out the metal fittings from the respective receiving holes and insert them into the insertion holes. The gripping device 2 is provided with a sensor 28 and a contact member 30. The sensor 28 detects metal fittings in the opposite direction. The abutting member 30 abuts the metal fittings and stops the lowering of the gripping device 2. For this reason, the lower limit switch 40 does not act and the insertion abnormality is found.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for feeding metal fittings used when insert molding is performed, for example, by inserting a flat terminal metal fitting into a mold.

[0002]

[Prior Art]

 When inserting flat terminal fittings into a mold for insert molding, in the past, an operator picked the flat terminal fittings with fingers and put them in the mold, or gripped one flat terminal fitting with a gripping device. It is put in the mold automatically.

[0003]

[Problems to be solved by the device]

 The problem with workers is that they take time, work efficiency is low, and labor saving is not possible. Also, when using a gripping device, it is possible to save labor, but since it is configured to put one flat terminal metal piece into the mold, it is possible to insert a plurality of flat terminal metal pieces at a time. In this case, it is necessary to move the gripping device by the number of flat terminal fittings, and the work efficiency is low.

In the above-described conventional gripping device, since the gripping portion of the gripping tool that directly grips the flat terminal fitting is made of metal, the gripping portion of the gripping tool is simply enlarged for the purpose of simultaneously gripping a plurality of flat terminal fittings. However, if the flat terminal fittings that are gripped at the same time do not have the same thickness and are not all the same, for example, even with a difference of about 0.01 mm, flat terminal fittings with a thin thickness are likely to drop or lose their posture. Actually, it is not possible to grip multiple flat terminal fittings at once.

The present invention allows two or more flat terminal fittings and similar fittings to be gripped by a gripping device at a time and efficiently sent to a predetermined place. An object of the present invention is to provide a device for feeding metal fittings that can detect abnormalities when the metal fittings or the like do not enter the insertion hole when they are gripped or when they are inserted into the insertion member.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention receives a plurality of metal fittings fed in the same longitudinal direction into a plurality of receiving holes arranged in parallel in the lateral direction and receiving one end portion. A preparation device that puts the metal fittings in a predetermined gripping position in a state of being exposed from the hole, and a pair of gripping tools were attached to the main body, and the gripping tools were moved by the gripping drive device to be attached to the gripping tools. The gripping device that grips the metal fittings with the flexible member and the gripping device that grips the metal fittings at the grip position are moved in the longitudinal direction of the metal fittings and pulled out from the receiving hole, and the metal fittings are also moved in the longitudinal direction and inserted. A pull-out insertion device that is inserted into the insertion hole of the member, a transfer device that moves the gripping device together with the pull-out insertion device between the preparation device and the insertion member, and a flexible member of a pair of gripping tools that is attached to the gripping device. End part of metal fittings The detection sensor that detects the metal fittings that are gripped in the opposite direction, and the metal fitting for the insertion hole when the metal fittings are inserted into the insertion hole by the pull-out insertion device Due to the positional displacement of the metal fittings, the metal fittings are not inserted into the insertion holes, but come into contact with the metal fittings when they hit the insertion member and slide on the flexible member to move in the longitudinal direction.

[0007]

[Action]

 The gripping device moves the gripping tool by the gripping drive device, and grips the metal fittings with the flexible member attached to the gripping tool. At this time, even if there is a variation in thickness between the metal fittings, the flexible member attached to the gripping tool absorbs this. Therefore, the plurality of metal fittings attached to the gripping position by the preparation device can always be properly gripped and fed into the insertion hole of the insertion member without dropping or losing the posture on the way.

When the metal fittings are gripped by the gripping device upside down, the detection sensor detects this due to the difference in the end position of the metal fittings. In addition, when the gripper is transferred to the part of the insertion member by the transfer device and the metal fittings are displaced from the insertion hole and hit the insertion member when the metal fittings are inserted into the insertion hole by the pull-out insertion device, the metal fittings The flexible member slides and moves in the longitudinal direction to contact the contact member. From the contact of the metal fittings with the contact member, it can be easily known that the metal fittings were not inserted into the insertion holes.

[0009]

【Example】

 The accompanying drawings illustrate one embodiment of the present invention. The metal fittings feeding device according to the present invention mainly comprises a preparation device 1, a gripping device 2, a pulling and inserting device 3, and a transfer device 4.

The preparation device 1 is a device for aligning a plurality of (three in the figure) flat terminal metal fittings (metal fittings) W with their longitudinal directions parallel to each other at regular intervals and placing them in a predetermined preparation position. The main components are the aligning device 7, the linear feeder 8, the stopping device 9, and the receiving member 10. The aligning device 7 feeds the flat terminal fitting W to the linear feeder 8 with its longitudinal direction aligned with that of the flat terminal fitting W. The flat terminal fitting W sent to the linear feeder 8 is sent to the stop block 11 of the stop device 9 and temporarily stopped by the stopper 12. The stopper 12 is pushed downward by the stopping cylinder 13 against the elastic force of the return spring 14 (FIG. 5) to stop the flat terminal fitting W.

Explaining the flat terminal fitting W, a constricted portion Wa (FIG. 4) is formed at one end of a flat thin metal plate, and a claw Wb is formed at a central side portion near the constricted portion Wa. It has a length of about 17 mm and a thickness of about 0.6 mm, and is insert-molded into an electric switch.

The receiving member 10 has three receiving small holes 10 a, 10 b, 10 c for receiving the flat terminal fitting W, and is provided on the movable member 16 so as to be vertically rotatable. The movable member 16 is horizontally movable in a direction orthogonal to the linear feeder 8, and the receiving holes 10a, 10b, 10c are arranged in parallel in the moving direction of the movable member 16 at a predetermined interval. There is.

The receiving member 10 is rotated 90 degrees up and down in a vertical plane including the linear feeder 8 by a rotating actuator 17. The movable member 16 is arranged by a first moving cylinder 18 (FIG. 1), and the first moving cylinder 18 is arranged by the second moving cylinder 19 together with the movable member 16 so that the receiving holes 10a, 10b, 10c are arranged. It can be moved horizontally in each direction. The moving distance of the movable member 16 by the moving cylinders 18 and 19 is matched with the arrangement interval of the receiving holes 10a, 10b and 10c. At each of the receiving holes 10a, 10b, 10c, a confirmation sensor 20 (FIG. 1) for detecting that the flat terminal metal fitting W has been inserted into the receiving hole is provided. The receiving holes 10a, 10b, 10c may be grooves. The flat terminal fitting W is inserted into each of the receiving holes 10a, 10b, 10c with its tip Wc exposed.

The gripping device 2 opens the pair of gripping tools 23, 23 attached to the main body 22 with the gripping cylinders 24, 25 (FIG. 7) and closes them with the force of the gripping springs 26, 26, whereby the flat terminal The metal fitting W is sandwiched between the grippers 23. The gripping portion of the gripping tool 23 with which the flat terminal fitting W is in contact is formed of a flexible member 27 (FIGS. 6 and 8) made of rubber or a material having the same effect and having an appropriate elasticity. As shown in FIG. 8, the flexible member 27 absorbs the difference in thickness between the flat terminal fittings W and securely grips them even if the flat terminal fittings W have different thicknesses. The gripping cylinders 24 and 25 and the gripping spring 26 constitute a gripping drive device.

A detection sensor 28, which is a reflection type beam sensor, is provided in one of the grips 23, and a through hole 23a is formed in the other grip 23. The detection sensor 28 emits a beam toward the through hole 23a. When the flat terminal metal fitting W in the normal state having the constricted portion Wa inserted into the receiving holes 10a, 10b, 10c is gripped by the gripping device 2 as it is, the tip Wc of the flat terminal metal fitting W blocks the beam and detects it. When the flat terminal metal fittings W 1 which are reflected in 28 and are inserted in the receiving holes 10a, 10b, 10c in the opposite directions are gripped by the gripping device 2, the constricted portions Wa of the flat terminal metal fittings W should block the beam. Instead, it is configured to pass through the through hole 23a.

A contact member 30 is provided on the main body 22 of the gripping device 2. The contact member 30 will be described later.

The pull-out insertion device 3 includes a pull-out cylinder 32 and an insertion cylinder 33. The gripping device 2 is supported by an up-and-down member 34 that is moved up and down by a pull-out cylinder 32. The pull-out cylinder 32 is supported by an elevating member 35 that is moved up and down by an inserting cylinder 33. The pulling-out cylinder 32 moves the gripping device 2 upward to pull out the flat terminal fitting W from the receiving holes 10a, 10b, 10c of the receiving member 10 upward. The insertion cylinder 33 moves the gripping device 2 together with the extraction cylinder 32 to insert the flat terminal fitting W into the insertion hole (groove) 36a of the insertion member 36 (FIG. 2). The insertion member 36 is provided on the turntable 37.

The pull-out cylinder 32 is provided with a limit switch 38 for detecting the lower limit of the pull-out cylinder 32 and a limit switch 39 for detecting the upper limit of the pull-up cylinder 32. Similarly, the insertion cylinder 33 is provided with a limit switch 40 for detecting the lower limit and a limit switch 41 for detecting the upper limit.

By the way, when the gripping device 2 is lowered by the insertion cylinder 33 to insert the flat terminal metal fitting W into the insertion hole 36 a of the insertion member 36, the flat terminal metal fitting W is displaced relative to the insertion hole 36. There is concern that W may hit the insertion member 36 without being inserted into the insertion hole 36a. When the flat terminal metal fitting W hits the insertion member 36, the force of the insertion cylinder 33 causes the flexible members 27, 27 of the gripping tools 23, 23 to slide and move upward relative to the gripping tools 23, 23. Therefore, it is impossible to know whether or not the flat terminal metal fitting W has been correctly inserted into the insertion hole 36a without taking measures.

The abutting member 30 described above abuts the flat terminal metal fitting W to prevent the metal fitting W from sliding upward relative to the gripping tool 2.32. At this time, the insertion cylinder 33 is stopped halfway, so the lower limit detection limit switch 40 does not work. Therefore, it is possible to know the positional deviation by the limit switch 40 not operating within the set time after the insertion cylinder 33 starts to descend. It is also possible to directly connect a limit switch to the contact member 30 to detect the positional deviation. However, in this configuration, in addition to the lower limit detection limit switch 40, a flat terminal that is gripped by the gripping device 2 at once. It is necessary to provide limit switches on the main body 22 by the number of the metal fittings W 3 (three in the case of the figure), which complicates the structure.

Further, the transfer device 4 includes an X-axis moving device 42 and a Y-axis moving device 43. The Y-axis moving device 43 is moved left and right in FIG. 2 by the X-axis moving device 42. The Y-axis moving device 43 is provided with a moving member 44 which is moved up and down in FIG. 2 by the Y-axis moving device 43. The moving member 44 supports the pulling and inserting device 3. The gripping device 2 is transferred by the transfer device 4 between the receiving portion 10 of the preparation device 1 and the insertion member 36 on the turntable 37. The structures and types of the moving devices 42, 43 and the cylinders 18, 19, 32, 33 are arbitrary, and may be, for example, a cylinder type actuator that rotates a ball screw by a servomotor to make a linear movement.

Next, the operation of the metal fittings feeding device according to the present invention constructed as described above will be described. The flat terminal fittings W are aligned in a line by the aligning device 7, and are fed onto the stop block 11 through the linear feeder 8 in the same direction as the longitudinal direction. The first flat terminal metal fitting W is inserted into the receiving hole 10a at the receiving position by reducing the moving cylinders 18 and 19. When the flat terminal fitting W is completely inserted into the receiving hole 10a, the stopping cylinder 13 of the stopping device 9 extends to press the second flat terminal fitting W onto the stop block 11 by the stopper 12.

When the movement of the flat terminal fitting W is stopped by the stopper 12, the first moving cylinder 18 extends to move the receiving member 10 and move the central receiving hole 10b to the receiving position. When this is completed, the stop cylinder 13 contracts to release the stop of the flat terminal fitting W, so that the second flat terminal fitting W is inserted into the receiving hole 10b. When the flat terminal metal fitting W is inserted into the receiving hole 10b, the stop device 9 works again to press the third flat terminal metal fitting W by the stopper 12 this time. Then, the second moving cylinder 19 is activated to further move the receiving member 10 and set the final receiving hole 10c at the receiving position. When the receiving hole 10c reaches the receiving position, the stop of the third flat terminal metal fitting W is released, and the metal fitting W is inserted into the receiving hole 10c.

When the flat terminal metal fittings W have been inserted into the respective receiving holes 10a, 10b, 10c in this manner, the turning actuator 17 causes the stop device 9 to stop the fourth flat terminal metal fitting W in total. Waiting until the receiving member 10 is rotated, the receiving member 10 is rotated upward by 90 degrees, and the flat terminal fittings W received in the receiving holes 10a, 10b, 10c are vertically erected and held at the holding position.

During the above operation, the gripping device 2 is moved right above the receiving member 10 by the operation of the transfer device 4, and the upward rotation of the receiving member 10 moves the flat terminal metal fitting W to the gripping position. Then, it is lowered by the extraction cylinder 32. When the gripping device 2 descends, the pair of gripping tools 23, 23 is opened by the gripping cylinder 24.25. When the gripping device 2 has finished descending, the gripping tools 23, 23 are closed by the action of the gripping springs 26, 26, and the three flat terminal fittings W are gripped by the flexible members 27, 27. When the gripping device 2 finishes gripping the flat terminal fitting W, the pulling-out cylinder 32 is contracted to raise the gripping device 2, and the three flat terminal fittings W are received in the respective receiving holes 10a, 10b, 10c of the receiving member 10. Pull out from above.

Due to a malfunction of the aligning device 7, the flat terminal fittings W are arranged in the opposite direction and are inserted into the receiving holes 10a, 10b, 10c as they are, or the flat terminal fittings W shortened due to a processing error are received in the receiving holes 10a, 10b. , 10c, the detection sensor 28 detects this and stops the operation and notifies the abnormality.

When the gripping device 2 rises and the flat terminal fitting 3 is pulled out, the transfer device 4 operates again, and this time the gripping device 2 is transferred to a position right above the insertion member 36 on the turntable 37. Separately from this, each of the moving cylinders 18 and 19 is contracted, and the rotating actuator 17 is operated to rotate the receiving member 10 downward to attach the first receiving hole 10a to the receiving position and to dispose the flat terminal. The acceptance of the metal fitting W is restarted.

When the gripping device 2 has been transferred right above the insertion member 36, the insertion cylinder 33 is extended to lower the gripping device 2 and the three flat terminal fittings W are inserted into the insertion member 36. It is inserted into the hole 36a. When the flat terminal metal fitting W hits the insertion member 36 due to the displacement of the flat terminal metal fitting W with respect to the insertion hole 36a, the contact member 30 abuts the flat terminal metal fitting W and is gripped by the insertion cylinder 33. Prevent the device 2 from descending. As a result, the lower limit detection limit switch 41 does not work even if the set time elapses after the insertion cylinder 33 starts expanding, and an abnormality is detected. In this case, too, the operation is stopped and an abnormality is notified.

When each flat terminal metal fitting W is inserted into the insertion hole 36 a of the insertion member 36, the pair of gripping tools 23, 23 are opened by the action of the gripping cylinders 24, 25 to separate the flat terminal metal fitting W. After that, the gripping device 2 is raised by the reduction of the insertion cylinder 33. After that, the gripping device 2 is transferred onto the receiving member 10 by the operation of the transfer device 4. Then, the above operation cycle is repeated.

In the above, the confirmation sensor 20 and each of the limit switches 38 to 41 work as a linking element for operation. The flat terminal fitting W inserted into the insertion hole 36a of the insertion member 36 is pulled out from the insertion hole 36a by another holding device (not shown) having the same basic structure as the holding device 2, and a mold (not shown) is drawn. ) Is inserted at a predetermined position. Depending on the mold structure, the metal fittings can be inserted directly into the mold.

The gripping drive device of the gripping device 2 shown in the figure is configured to grip the flat terminal fitting W by the force of the gripping spring 26, but the gripping cylinders 24 and 25 grip the flat terminal fitting W. It is also possible to use an electromagnet, etc. The specific structure and type are arbitrary.

[0032]

As described above, the device for feeding metal fittings according to the present invention has a plurality of metal fittings, which are sent with their longitudinal directions aligned, and which receive a plurality of receiving holes arranged in parallel in a horizontal direction. And a pair of gripping tools are attached to the main body, and the gripping tool is attached to the main body, and the fittings are attached to a predetermined gripping position in a state where one end of the gripping tool is out of the receiving hole. And a gripping device that grips metal fittings with a flexible member attached to the gripping tool by moving the gripping tool, and a gripping device that grips the metal fittings at the gripping position is moved in the longitudinal direction of the metal fittings and pulled out from the receiving hole. Attached to the gripping device, a pulling / inserting device for moving the members in the longitudinal direction thereof to insert into the insertion hole of the insertion member, a transfer device for moving the gripping device together with the pulling / inserting device between the preparation device and the insert member. Flexibility of a pair of grippers The detection sensor that detects the metal fittings that are gripped in the opposite direction based on the difference in the end position of the metal fittings that are gripped by the member, and the metal fitting that is installed near the gripping tool of the gripping device When the metal fittings are not inserted into the insertion holes due to the displacement of the metal fittings with respect to the insertion hole when the metal fittings collide against the insertion member and slide on the flexible member and move in the longitudinal direction during insertion into the insertion hole, contact the metal fittings. Since it is equipped with a contact member that makes it possible to hold multiple metal fittings such as flat terminal metal fittings at a time in the gripping device even if the thickness varies, the metal fittings fall along the way. The work efficiency can be improved by feeding it to a predetermined position without causing it to distort or losing its posture.

Further, when the metal fittings are gripped by the gripping device in the opposite direction or not correctly inserted into the insertion hole, it is possible to detect the abnormality. Therefore, manufacturing of defective products due to the above can be prevented.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is a front view of a main part with a part of a feeder of a metal fitting according to the present invention cut away.

FIG. 2 is a plan view of the same.

[Fig. 3] Linear feeder, stop block, receiving member,
2 is a schematic plan view showing the mutual relationship between the flat terminal fittings.

FIG. 4 is a cross-sectional view showing the difference between a flat terminal fitting that is normally inserted in the receiving hole of the receiving member and a flat terminal fitting that is inserted in the opposite direction.

FIG. 5 is a front view of the stop device.

FIG. 6 is a front view of the gripping device with a part broken away.

FIG. 7 is a cross-sectional view of a grip drive device of the grip device.

FIG. 8 is a bottom view showing a state in which the flat terminal fitting is held by the pair of soft members of the holding tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Preparation device 2 Grasping device 3 Extraction insertion device 4 Transfer device 10a, 10b, 10c Receiving hole 23 Grasping tool 24, 25 Grasping cylinder (grasping drive device) 26 Grasping spring (grasping drive device) 28 Detection sensor 30 Contact Member 36 Insert member 36a Insert hole W Flat terminal metal fittings (metal fittings)

Claims (1)

[Scope of utility model registration request] 1. A plurality of metal fittings, which are sent with their longitudinal directions aligned, are received in a plurality of receiving holes arranged side by side in parallel, and the one end is put out from the receiving hole. A holding device for attaching the metal fittings to a predetermined gripping position and a pair of gripping tools are attached to the main body, and the gripping tool is moved by a gripping drive device to grip the metal fittings with a flexible member attached to the gripping tool. Device and a gripping device that grips the metal fittings at the gripping position are moved in the longitudinal direction of the metal fittings to be pulled out from the receiving hole, and the metal fittings are also moved in their longitudinal direction to be inserted into the insertion holes of the insertion member. And a transfer device that moves the gripping device together with the pulling and inserting device between the preparation device and the insertion member, and the difference in the end position of the metal fittings attached to the gripping device and gripped by the flexible members of the pair of gripping tools. Gripped in reverse Detection sensor to detect the metal fittings
It is placed near the gripping tool of the gripping device, and when the metal fittings are inserted into the insertion hole by the pull-out insertion device, the metal fittings are not inserted into the insertion hole due to the displacement of the metal fittings with respect to the insertion hole, and the metal fittings strike the insertion member and are flexible. An apparatus for feeding metal fittings, comprising: an abutting member for abutting the metal fittings when the member slides and moves in the longitudinal direction.