JPH0311918Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a component insertion device used when mounting electronic components on a printed circuit board or the like, particularly for mounting soft electronic components having a large number of pins.

(Prior art) Conventionally, when mounting electronic components on a printed circuit board, insertion holes for the mounting feet are formed in advance on the printed circuit board together with the circuit, taking into consideration the area occupied by the electronic components, and the mounting feet are inserted into the insertion holes. In order to insert
Arrange various parts around the parts insertion device,
A gripping member of the component insertion device grips a predetermined component and automatically inserts it into a predetermined insertion hole along with the operation of the vibration generating mechanism. Among these parts, resistors and capacitors that have soft mounting legs are inserted using the lead chuck method, but most of them have two mounting legs. On the other hand, regarding soft multi-pin components such as hybrid IC components, which have been increasing recently, there is a component insertion device filed by the applicant of the present invention, application number 1986-6072. This component insertion device
As shown in the figure and FIG. 5, the hand main body 2 of the component insertion device 1 exhibits different movements with respect to the center line, and the upper part of the hand main body 2 is controlled by numerical control, for example, in X, Y, It is coupled to a known drive mechanism capable of movement in the Z direction. A vibration generating mechanism 3 is provided in the middle part of the hand body 2, and two gripping members 4 are located facing each other at the lower end thereof, and a pin 6 is attached to a block 5 fixed to the hand body 2.
It is attached so that it can rotate freely around the center. An adjustment pin 7 consisting of a bolt and a screw is formed above the pivot position of each gripping member 4, so that the vertical position of each gripping member 4 can be adjusted with respect to the pivot position. There is. A through hole is formed within the adjusting pin 7 and the horizontal block 5, forming a cylinder 8. For cylinder 8,
Each piston 9 is slidably fitted into the cylinder 8, and the inside of the cylinder 8 communicates with a passage 10, as shown in FIG. . A spring member 12 is attached across each gripping member 4 between the pivot position of the gripping member 4 and the adjustment pin 7, and is formed to urge the gripping member 4 inwardly as it rotates. Returning to FIG. 4, a suction member is located between the opposing gripping members 4. This suction member is made up of a pad 13 whose tip is shaped like a container facing down, and a stopper 14 that is formed to cover the pad 13 and protrude downward from the pad 13. is formed at the tip of. piston 15
There is a passage 16 for vacuum suction in the central axis of the
is formed, with one end opening into the pad 13 and the other end opening into the cylinder 17, which communicates with the suction port 18. On the way, the piston 15 passes through an annular portion 2 that receives pressure in a widened chamber 19 in the cylinder 17.
0 is formed. At the top inside the cylinder 17,
A pressurizing port 21 that serves as a driving member for lowering the piston 15 and a spring member 22 are inserted into the lower part of the annular portion 20 of the piston 15, so that air can be drawn from the pressurizing port 21. When the spring member 22 is pressurized by
The left side is not pressurized and the piston 15
is in a rising state.

(Problem to be solved by the invention) In the above conventional configuration, air pressure is used, so when the parts are vibrated to probe the mounting holes on the board, the vibrations are prevented by the piping connected to the block. The movement of finding the mounting hole on the board becomes inconvenient,
Electronic components cannot be inserted reliably. Furthermore, since the gripping member is attached to the block to form an air passage, it becomes large and heavy, which also causes problems such as the inability to securely insert electronic components due to vibration.

Further, in the above component insertion device, it is desirable that the gripping position of the gripping member 4 with respect to the mounting foot of the electronic component is set according to the length of the mounting foot so that an appropriate vibration force can be applied to the mounting foot. In the above component insertion device, when mounting an electronic component having mounting feet of a different length onto a board than an electronic component having mounting feet of one length dimension, the electronic component is placed at an appropriate clamping position according to the length dimension. To achieve this, the only solution is to change the vertical position of the piston, and if you try to apply it to items with greatly different lengths, the vertical dimension of the device will increase accordingly, making the device larger. The actual situation is that it is difficult to apply the method to various electronic components having different lengths of mounting legs.

In order to solve the above-mentioned problem caused by the obstruction of vibration caused by the piping, as shown in Japanese Unexamined Patent Publication No. 61-93700, a chuck main body 21 having a chuck claw 19 for capturing electronic components is rotated to the inner case 23. A cam surface with a step 34 is formed on the inner case 23, and the cam surface is opened and closed in accordance with the vertical movement of the inner case 23 via a roller 32 that contacts the cam surface to capture electronic components from the side. It is conceivable to use one provided with a pair of chuck claws 29. However, since this device is provided with a pinion 24 and a rack 26 for driving the inner case 23 and the chuck body 21, the weight on the vibrated body side becomes large, and this makes it difficult for the vibration generating mechanism to reliably operate the electronic components. The actual situation is that the mounting will be hindered, and the problems caused by the above-mentioned weight increase will not be solved. In addition, in this case, chuck claw 19 for capturing electronic components
Since the chuck main body 21 having the inner case 23 moves up and down together with the inner case 23, if the chuck body 21 is to be applied to objects with greatly different lengths, the vertical dimension of the device will be correspondingly longer and the device will be larger. Similarly, it is difficult to apply it to various electronic components with different mounting leg lengths.

Therefore, in the present invention, a sliding member is provided at one end of the gripping member and brought into contact with the cam portion of the movable member, and the gripping member corrects the mounting foot of the electronic component by the movement of the movable member, and at the same time, the sliding member is brought into contact with the cam part of the movable member. The device presses the top of the electronic component to attract and grip the electronic component, and after the main body of the device moves to a predetermined position, the electronic component is pushed onto the board by the pressing member, ensuring that the electronic component is mounted securely. Another object of the present invention is to provide a highly versatile component insertion device that can be applied to various electronic components having mounting legs of different lengths.

(Means for Solving the Problems) A feature of the present invention for achieving the above object is that the electronic component has a device body that grips mounting feet formed on both sides of the electronic component and inserts it into the board hole. The insertion device has a vibration generation mechanism that generates a vibration force, and a first cylinder extending along the insertion direction of the electronic component is formed in the main body of the vibrated body that receives the vibration force of the vibration generation mechanism. first and second passages for supplying compressed air to the first cylinder;
A first cylinder is provided with openings on the head side and side side facing the bottom, a movable member is slidably housed in the first cylinder, and an intermediate part of the sliding part of the movable member is provided with openings. The formed reduced diameter part and the inner wall of the first cylinder form a chamber that communicates with the second passage, and the third passage formed in the reduced diameter part forms a chamber that communicates with the second passage through the third passage formed in the reduced diameter part. A second cylinder communicating with the chamber is formed along the insertion direction of the electronic component, and a pressing member driven by air pressure supplied through the third passage is attached to the second cylinder, with its tip end A cam portion is formed at the end of the movable member to protrude from an end of the movable member and slidably housed therein, and has a tapered surface inclined toward the insertion direction of the electronic component. A pair of gripping members that come into contact with the cam portion and whose other end side can grip the portion of the pressing member protruding from the end of the movable member from both sides are pivotally supported on the device main body, and the gripping members are configured to come into contact with the electronic components of the pressing member. The reason is that a suction portion is provided at the contacting portion to suction the electronic component by vacuuming through a fourth passage provided at the axis of the pressing member.

(Function) With the above configuration, when gripping an electronic component,
First, the device main body approaches above the electronic component. Next, as the movable member descends, the cam portion formed at its tip pushes the sliding member formed at one end of the gripping member. At this time, the opposing ends of the gripping members rotate inward to grip the mounting legs on both sides of the electronic component, thereby correcting its width. At the same time, the pressing member descends and presses the top of the electronic component, and the suction member suctions the top surface of the electronic component, thereby gripping the electronic component. Then, when the main body of the apparatus moves to a predetermined position and descends onto the substrate, the pressing member pushes out the electronic component, so that the electronic component is reliably mounted.

A movable member is provided in the main body of the vibrated body, and
Furthermore, this movable member is provided with a pressing member in the sliding direction of the movable member, thereby making it possible to reduce the size and weight of the vibrated body. Furthermore, since the movable member and the pressing member can be driven by supplying air to the first cylinder and the second cylinder through the second passage and the chamber, it is possible to drive the movable member and the pressing member by supplying air to the first cylinder and the second cylinder. The movable members and the vibrated body can be made smaller and lighter than those provided independently. In addition, when mounting an electronic component that has mounting feet of a different length on a board than an electronic component that has mounting feet of one length dimension, inserting the movable member or pressing member against the gripping member. direction to set the clamping position of the mounting foot of the gripping member so that an appropriate vibration force can be applied to the mounting foot. In this way, the movable member or the pressing member can be moved relative to the gripping member, and the clamping position of the gripping member's mounting feet can be set, so various mounting feet with different lengths can be used without increasing the vertical dimension of the device. This means that it can be applied to electronic components.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. First, FIG. 1 shows a component insertion device 1 which is an embodiment of the present invention. This component insertion device 1
have a common configuration as already explained as the prior art based on FIG. 4 and FIG.
A detailed explanation thereof will be omitted. Inside the device body 2,
The main body of the vibrated body (code omitted) is the vibration generating mechanism 3
It is designed to receive the vibrational force generated by
A cylinder 17 is formed in the main body of the vibrated body, and the movable member 15 is slidably fitted into the cylinder 17. The movable member 15 forms two annular portions 20 within the cylinder 17, and each of the annular portions 20 is provided with an O-ring 23 to maintain confidentiality. The lower part of the annular part 20 and the bottom part 2 of the cylinder 17
A spring member 22 is installed between the . The movable member 15 is normally raised to the information. There is a space between the annular part 20 located at the lower part and the upper part, forming a chamber 19, and a passage 25 extending from this chamber 19 toward the outside of the device main body 2.
is formed and communicates with the first pressurizing port 26 .
Further, the chamber 19 communicates with a cylinder 28 of a pressing member 27, which will be described later, through a passage 25a. The tip of the movable member 15 has an annular shape so that it can slide inside the block 5 detachably attached to the mounting body 2, and a cam that tapers in diameter from the annular tip and gradually increases in diameter upward. A portion 29 is formed.

Inside the movable member 15, a cylinder 28 is further provided.
is formed, and a pressing member 27 is slidably fitted inside this. An annular portion 30 is formed on the pressing member 27 within the cylinder 28, and an O-ring 31 is attached to the outer periphery of the annular portion 30 to maintain confidentiality. A spring member 32 is installed between the annular portion 30 and the bottom of the cylinder 28, and the pressing member 27 is normally lifted upward by the elastic force of the spring member 32. Pressing member 27
A flat pressing part 42 is formed at the lower end, and the block 5 is pressed so that the upper surface of the electronic component can be pressed.
protrudes from the bottom of the A rubber-like suction member 42 a is attached to the lower surface of the pusher 42 , and the suction member 42 a as the suction portion has a small hole so that the electronic component 43 can be suctioned.
For this purpose, a passage (not shown) is formed from the small hole to the axial center of the pressing member 27. The pressing member 27 extends upward from the annular portion 30 and presses the O-ring 35 inside the lid portion 35 that forms the upper part of the movable member 15.
The electronic component 43 is vacuum-suctioned through the suction port 42b which is kept secret by the cylinder 17a and penetrates through the lid part 38 of the cylinder 17 and protrudes to the outside of the device main body 2. There is.

In the cylinder 28 described above, a chamber 36 is formed between the lower surface of the lid portion 35 and the annular portion 30, and this chamber 36 communicates with the chamber 19 through the passage 25a described above. 1 Pressure port 2
The pressing member 27 is adapted to be lowered by the pressure applied from 6. The upper part of the lid part 35 forming the chamber 36 is inside the cylinder 17, and a passage 41a is formed in the lid part 38 so as to lower the movable member 15 as seen in FIGS. 2 and 3. The passage 41a is a second passage protruding from the outside of the device main body 2.
It communicates with the pressurizing port 41 . In addition, the lid part 38
is kept airtight by an O-ring 37 and prevented from coming off by a C-shaped pin 39.
Further, the lid portion 35 is also prevented from being removed by a C-shaped pin 34.

Push portion 4 protruding from the tip of movable member 15
As mentioned above, the location 2 is the block 5 protruding from the main body 2 of the device, and this block 5
Mounting feet 44 that the electronic component 43 has are provided on both sides of the
Approximately the middle portion of the gripping member 4 that holds the holder 4 from both sides is pivotally supported by a pin 6. One end of the gripping member 4 is opposed to a mounting foot 44 of the electronic component 43, and a rod portion 45 protrudes inward at a right angle from the other end. This rod portion 45 enters into a through hole 46 formed in the block 5, which has an inner diameter sufficiently larger than the rod portion 45 and penetrates the small diameter cylinder portion of the movable member 15, and has a bearing, which is a sliding member, at its tip. 47 is attached. The bearing 47 is configured to be able to rotate by contacting the cam portion 29 described above, and is connected to a screw 48 attached to the outside of the gripping member 4 by a well-known structure, although it is omitted. Therefore, the distance between the bearing 47 and the outer surface of the gripping member 4 can be adjusted. By this, the movable member 1
When 5 is lowered in Fig. 1, bearing 4
7 is pushed outward by the cam portion 29, so that the tip of the gripping member 4 rotates inward. Note that the movable member 15, the pressing member 27, etc. constitute the vibrated body, and the movable member 15 is provided in the main body of the vibrated body so as to be movable at will. Pressing member 2
7 is provided, thereby making it possible to reduce the size and weight of the vibrated body. Furthermore, the movable member 15 and the pressing member 27 can be driven by supplying air to the cylinder 17 (first cylinder) and the cylinder 28 (second cylinder) through the passage 25 and the chamber 19. 27, the air passages can be shared, and the movable member 15 and, by extension, the vibrated body can be made smaller and lighter than when they are provided independently.

With the above configuration, the component insertion device 1 of the present invention
Electronic components 4 prepared in advance by
3 to be mounted on the board 49 at a predetermined position, the device main body 2 is first moved above the electronic component 43 to be picked up by a drive mechanism (not shown), and then the first pressurizing port 26 When pressure is applied, the pressing member 27 descends against the spring member 32 and comes into contact with the upper surface of the electronic component 43 . Then, when vacuum is drawn from the suction port 42b, the suction member 42a
attracts the electronic component 43. When pressurized from the second pressurizing port 41 in this state, the movable member 15 descends against the spring member 22 and grips the mounting foot 44 of the electronic component 43 with the gripping member 4 . At the same time, the pressing member 27 is raised by reducing the pressure from the first pressurizing port 26. In this way,
The mounting foot 44 of the electronic component 43 is connected to the mounting hole 5 of the board 49.
By correcting the distance to 0, it can be gripped reliably. This state is shown in FIG.

Next, when inserting the mounting foot 44 of the electronic component 43 into the mounting hole 50 of the board 49, pressure is applied from the first pressure port 26 and suction from the suction port 42b is stopped. The vibration force of the vibration generating mechanism 3 is transmitted to the mounting foot 44 of the electronic component 43 through the movable member 15 and the pressing member 27, which are configured to be symmetrical, to cause the mounting foot 44 to vibrate. As a result, the mounting feet 44 are easily guided to the mounting holes 50 of the board 49, and the electronic component 43 is reliably mounted on the board 49. This state is shown in FIG. After this,
By depressurizing the second pressurizing port 41, the movable member 15 rises, the gripping member 4 is released, and the first pressurizing port 26 is depressurized, causing the pressing member 2 to move upward.
7, one step of mounting the electronic component 43 is completed. Further, the electronic component 43
When mounting an electronic component having a mounting foot with a length dimension different from the length of the mounting foot 44 on the board 49, the movable member 15 or the pressing member 27 is attached to the gripping member 4.
By moving the gripping member 4 in the insertion direction of the electronic component, the gripping position of the gripping member 4 with respect to the mounting foot is set so that an appropriate vibration force can be applied to the mounting foot. In this way, the movable member 14 or the pressing member 27 is moved relative to the gripping member 4, and the gripping member 4 is moved.
Since the clamping position with respect to the mounting legs can be set, the device can be applied to various electronic components with different mounting leg lengths without increasing the vertical dimensions of the device, that is, without increasing the size of the device, improving versatility. become.

In the present invention, since the block 5 to which the gripping member 4 is attached is detachable from the device body 2, it can be replaced with a block 5 equipped with a gripping member 4 of a different size depending on the dimensions of the electronic component 43. . This makes the component insertion device 1 versatile.

(Effects of the invention) As described above, the component insertion device of the invention has the following advantages:
Since the movable member is actuated by air pressure and the gripping member is rotated by displacement by the cam portion formed on the movable member, the mounting foot of the electronic component can be corrected with sufficient force. On the other hand, a movable member that rotates the gripping member is provided on the main body of the vibrated body so as to be movable, and a pressing member is provided on this movable member in the sliding direction of the movable member, and as in the conventional case, the movable member is provided close to the gripping member. Since no piping or the like is located in the block, the block portion of the present invention is made smaller, and electronic components can be reliably mounted by eliminating the effects of inertia force and elastic force of the piping. Furthermore, since the movable member and the pressing member can be driven by supplying air to the first cylinder and the second cylinder through the second passage and the chamber, it is possible to drive the movable member and the pressing member by supplying air to the first cylinder and the second cylinder. The movable members and the vibrated body can be made smaller and lighter than those provided independently. In addition, since the movable member or pressing member can be moved relative to the gripping member to set the clamping position of the mounting feet of the gripping member, various mounting feet with different lengths can be used without increasing the vertical dimension of the device. It can be applied to electronic components and can improve versatility.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view showing the component insertion device of the present invention, FIG. 2 is a vertical cross-sectional view showing a state in which an electronic component is gripped, and FIG. 3 is a vertical cross-sectional view showing a state in which an electronic component is inserted into a board. 4 is a longitudinal sectional view showing a conventional component insertion device, and FIG. 5 is a top view showing the conventional component insertion device.
FIG. 1... Parts insertion device, 2... Device main body, 4...
Gripping member, 15... Movable member, 27... Pressing member, 29... Cam part, 42a... Adsorption part (adsorption member), 43... Electronic component, 44... Mounting foot, 47
...Sliding member (bearing), 49...Substrate.

Claims (1)

[Scope of Claim for Utility Model Registration] A component insertion device that has a main body that grasps mounting feet formed on both sides of an electronic component and inserts it into a board hole, which has a vibration generation mechanism that generates vibration force. , a first cylinder along the insertion direction of the electronic component is formed in the main body of the vibrated body receiving the vibration force of the vibration generating mechanism, and a first cylinder and a cylinder for supplying compressed air to the first cylinder. the second passage, the first passage
A movable member is slidably housed in the first cylinder, and is formed at an intermediate portion of the sliding portion of the movable member. The reduced diameter portion and the inner wall of the first cylinder form a chamber that communicates with the second passage, and the chamber is connected to the axis of the movable member via a third passage formed in the reduced diameter portion. A communicating second cylinder is formed along the insertion direction of the electronic component, and a pressing member driven by air pressure supplied through a third passage is attached to the second cylinder, and the distal end thereof is connected to a movable member. A cam portion is formed at the end of the movable member and has a tapered surface that is inclined toward the insertion direction of the electronic component, and one end side is inserted into the cam via the sliding member. a pair of gripping members that abut on the device body and whose other end side can grip from both sides a portion of the pressing member protruding from the end of the movable member; A component insertion device characterized in that a suction portion is provided for suctioning electronic components by vacuuming through a fourth passage provided at the axis of the pressing member.