Automatic assembly mechanism for pin headers of circuit boards

Abstract

The present invention relates to an automatic assembly mechanism for pin headers of a circuit board, the automatic assembly mechanism being used to insert a plurality of PIN pins into a plastic body. The automatic assembly mechanism has a pin connection station and a pin insertion station formed on its equipment rack. The automatic assembly mechanism comprises a first feeding mechanism for supplying rows of PIN pins to the pin connection station, a second feeding mechanism arranged on the equipment rack for sequentially supplying plastic bodies to the pin insertion station, and a pin insertion device for inserting the PIN pins arranged in rows on the pin connection station into the plastic body on the pin insertion station; the second feeding mechanism comprises a vibrating plate mechanism and a positioning mechanism. Through the automated design, the manual pin insertion operation is avoided, thereby greatly improving production efficiency, reducing labor intensity, and reducing labor cost expenditure, thereby improving enterprise competitiveness under the background of automated production.

Description

Technical Field

[0001] The invention relates to an automatic assembly mechanism for pin headers of a circuit board. Background Art

[0002] Usually, two required points on a circuit board are electrically connected through jumpers or flat cables. Generally, pin headers (PINs) are set at the two required points, and then the two ends of multiple jumpers or flat cables are connected to the multiple PINs at the two required points. The multiple PINs need to be inserted into the plastic body before being soldered to the circuit board to obtain support.

[0003] In the prior art, multiple PIN pins are inserted into the holes of a plastic body manually. The main steps are: first, the plastic body (rectangular) is fixed in the fixture slot, and then the PIN pins are manually placed vertically one by one at each hole of the plastic body. Then, a pressing block is held to press the multiple PIN pins into the holes to complete the fixing of the PIN pins to the plastic body. This operation method is extremely inefficient and has high labor costs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an automatic assembly mechanism for pin headers of a circuit board.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0006] A circuit board pin header automatic assembly mechanism, the automatic assembly mechanism is used to insert multiple PIN pins into a plastic body, the automatic assembly mechanism has a pin connection station and a pin insertion station formed on its equipment frame, the automatic assembly mechanism includes a first feeding mechanism for supplying rows of PIN pins to the pin connection station, a second feeding mechanism arranged on the equipment frame for sequentially supplying plastic bodies to the pin insertion station, and a pin insertion device for inserting the PIN pins arranged in rows on the pin connection station into the plastic body on the pin insertion station; the second feeding mechanism includes a vibration disk mechanism for sorting batches of the plastic bodies and supplying them sequentially, and a positioning mechanism that docks with the vibration disk mechanism and positions the plastic bodies provided by the vibration disk mechanism one by one to the pin insertion station.

[0007] Preferably, the vibration plate mechanism includes a first vibration plate and a first conveying channel for conveying plastic; the first feeding mechanism includes a second vibration plate and a second conveying channel for conveying rows of PIN needles.

[0008] Preferably, the positioning mechanism includes a positioning channel, the pin insertion station is connected to the outlet of the positioning channel, and the positioning mechanism also includes a first feeding mechanism for delivering the plastic bodies on the first conveying channel to the entrance of the positioning channel one by one, and a second feeding mechanism for driving the plastic bodies to move and move to the pin insertion station after passing through the positioning channel.

[0009] Preferably, the first feeding mechanism includes a sliding carrying block arranged between the first conveying channel and the positioning channel, the carrying block has a first position and a second position, the first feeding mechanism also includes a first driver that drives the carrying block to move to the first position and the second position, when the carrying block is in the first position, the carrying block docks with the end of the first conveying channel, and a plastic body at the end of the first conveying channel can move onto the carrying block; when the carrying block slides to the second position, the carrying block docks with the positioning channel, and the second feeding mechanism can drive the plastic body on the carrying block to move to the pin insertion station.

[0010] Preferably, the extension direction of the first conveying channel is parallel to the extension direction of the positioning channel.

[0011] Preferably, the sliding direction of the carrying block is perpendicular to the extending direction of the first conveying channel and the positioning channel.

[0012] Preferably, a blocking surface is formed on a side of the carrying block close to the first conveying channel, and when the carrying block moves from the first position to the second position, the blocking surface can always block the outlet at the end of the first conveying channel.

[0013] Preferably, a contoured groove for placing the plastic body is provided on the carrying block. When the carrying block is in the first position, the contoured groove is communicated with the first conveying channel. When the carrying block is in the second position, the contoured groove is communicated with the positioning channel.

[0014] Preferably, the second feeding mechanism includes a push rod capable of sliding in the positioning channel and a second driver for driving the push rod to move.

[0015] Preferably, the power output shaft of the second driver is fixedly connected to one end of the push rod through a connecting plate, the push rod is arranged parallel to the power output shaft of the second driver, and the other end of the push rod extends toward the side where the second driver cylinder is located.

[0016] Preferably, the pin connection station is located above the pin insertion station.

[0017] Preferably, the automatic assembly mechanism also includes a blocking mechanism for preventing the PIN needle at the end of the second conveying channel from sliding out; the blocking mechanism includes a fixed seat fixed relative to the equipment frame, a blocking block movably arranged in the up and down directions and capable of blocking the outlet at the end of the second conveying channel, and an elastic member tending to push the blocking block downward and block the outlet at the end of the second conveying channel.

[0018] Preferably, the pin insertion device includes a receiving head provided with a plurality of placement holes, which can drive the receiving head to move to one side of the pin receiving station to receive the PIN pin, and a driving mechanism that can drive the receiving head to move to one side of the pin insertion station to insert the PIN pin.

[0019] Preferably, the driving mechanism includes a third driver whose power output shaft is fixedly connected to the connecting head, a support plate fixedly connected to the cylinder of the third driver, and a fourth driver that drives the support plate to move up and down. The movement direction of the power output shaft of the third driver is consistent with the extension direction of the second conveying channel.

[0020] Preferably, the automatic assembly mechanism further comprises a pushing structure for tending to push the blocking block to move upward when the receiving head moves to one side of the pin receiving station to receive the PIN pin.

[0021] Preferably, the pushing structure includes a first transmission inclined surface formed on a side of the receiving head close to the blocking block, and a second transmission inclined surface formed on a side of the blocking block close to the receiving head and arranged in coordination with the first transmission inclined surface.

[0022] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art:

[0023] The circuit board pin header automatic assembly mechanism of the present invention avoids the manual pin insertion operation through automated design, greatly improves production efficiency, reduces labor intensity, reduces labor cost expenditure, and improves corporate competitiveness under the background of automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 Schematic diagram of the top view of the automatic assembly mechanism of the present invention (the bearing block is in the first position);

[0025] Figure 2 Schematic diagram of the top view of the automatic assembly mechanism of the present invention (the bearing block is in the second position);

[0026] Figure 3 It is a side structural schematic diagram of the pin insertion device and the first feeding mechanism of the present invention;

[0027] Figure 4A schematic diagram of the three-dimensional structure of the automatic assembly mechanism of the present invention (the first vibration plate, the second vibration plate, the bearing block, the blocking mechanism, etc. are omitted);

[0028] Among them: 10, first vibration plate; 11, first conveying channel; 12, first driver; 13, carrying block; 130, contour groove; 14, positioning channel; 15, second driver; 16, push rod; 17, connecting plate; 18, column; 19, block; 20, second vibration plate; 21, second conveying channel; 31, receiving head; 310, placement hole; 32, third driver; 33, support plate; 34, fourth driver; 41, fixing seat; 42, blocking block; 43, elastic member; m1, first transmission slope; m2, second transmission slope; 100, plastic body; Z1, PIN needle. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1 and Figure 2 As shown, a circuit board pin header automatic assembly mechanism is used to insert multiple PIN pins Z1 into a plastic body 100. The automatic assembly mechanism has a pin connection station and a pin insertion station formed on its equipment frame. The pin connection station is located above the pin insertion station. The automatic assembly mechanism includes a first feeding mechanism for supplying rows of PIN pins Z1 to the pin connection station, a second feeding mechanism provided on the equipment frame for sequentially supplying plastic bodies 100 to the pin insertion station, and a pin insertion device for inserting the PIN pins Z1 arranged in rows on the pin connection station into the plastic body 100 on the pin insertion station; after the rows of PIN pins Z1 are supplied to the pin connection station, the pin insertion device can connect the multiple PIN pins Z1 distributed in rows at the pin connection station, and then the pin insertion device inserts the multiple PIN pins Z1 it has connected into the plastic body 100 at the pin insertion station.

[0031] Specifically, the second feeding mechanism includes a vibration plate mechanism for sorting batches of plastic bodies 100 and supplying them in sequence, and a positioning mechanism that docks with the vibration plate mechanism and positions the plastic bodies 100 provided by the vibration plate mechanism one by one to the pin insertion station. The vibration plate mechanism includes a first vibration plate 10 and a first conveying channel 11 for conveying the plastic bodies 100; the positioning mechanism includes a positioning channel 14. In this example, the pin insertion station is connected to the outlet of the positioning channel 14, and the extension direction of the first conveying channel 11 is parallel to the extension direction of the positioning channel 14.

[0032] The positioning mechanism also includes a first feeding mechanism for feeding the plastic bodies 100 on the first conveying channel 11 to the entrance of the positioning channel 14 one by one, and a second feeding mechanism for driving the plastic bodies 100 to move through the positioning channel 14 to the pin insertion station.

[0033] Specifically, the first feeding mechanism includes a sliding carrying block 13 provided between the first conveying channel 11 and the positioning channel 14. The sliding direction of the carrying block 13 is perpendicular to the extension direction of the first conveying channel 11 and the positioning channel 14, and the carrying block 13 has a first position and a second position. The first feeding mechanism also includes a first driver 12 (composed of a cylinder) that drives the carrying block 13 to move to the first position and the second position. The carrying block 13 is provided with a contoured groove 130 for placing the plastic body 100. When the carrying block 13 is in the first position, the contoured groove 130 is connected to the end of the first conveying channel 11, and a plastic body 100 at the end of the first conveying channel can move into the contoured groove 130 on the carrying block 13.

[0034] When the carrying block 13 slides to the second position, the profiling groove 130 is connected to the entrance end of the positioning channel 14, and the second feeding mechanism can drive the plastic body 100 in the profiling groove 130 to move to the pin insertion station. In this example, the second feeding mechanism includes a push rod 16 that can slide in the positioning channel 14 and is used to push the plastic body 100 to move, and a second driver 15 (composed of a cylinder) that drives the push rod 16 to move; when the push rod 16 pushes the carrying block 13 to move, the end of the push rod 16 contacts it from one end of the plastic body 100 and pushes the plastic body 100 from the pin insertion station. The positioning channel 14 is pushed into the contoured groove 130 until it reaches the pin insertion station; in addition, a blocking surface is formed on the side of the carrying block 13 close to the first conveying channel 11. During the movement of the carrying block 13 from the first position to the second position, the blocking surface can always block the outlet at the end of the first conveying channel 11, thereby stabilizing the plastic body 100 on the first conveying channel 11 at the outlet at the end of the first conveying channel 11; when the carrying block 13 moves to the second position, its free end will be blocked by the block 19, so that the carrying block 13 can be accurately positioned in the second position.

[0035] The specific matching arrangement of the second driver 15 and the push rod 16 is as follows: the power output shaft of the second driver 15 is fixedly connected to one end of the push rod 16 through the connecting plate 17, the push rod 16 is arranged in parallel with the power output shaft of the second driver 15, and the other end of the push rod 16 extends toward the side where the cylinder of the second driver 15 is located, that is, when the power output shaft of the second driver 15 is extended, the push rod 16 retreats, and when the power output shaft of the second driver 15 is retracted, the push rod 16 can push the plastic body 100 forward to move. This arrangement can avoid the entire second feeding The space occupied by the mechanism is too long, which is conducive to on-site layout. The retraction distance of the power output shaft of the second driver 15 is equal to the movement distance of the push rod 16, which is equal to the movement distance of the plastic body 100. After the power output shaft of the second driver 15 retracts a set distance, the plastic body 100 just moves to the pin insertion station. By setting a column 18 on the connecting plate 17, the power output shaft of the second driver 15 retracts until the column 18 on the connecting plate 17 conflicts with one end of the cylinder of the second driver 15. Then the power output shaft retracts into place and the plastic body 100 just moves to the pin insertion station. The plastic body 100 that moves to the pin insertion station can receive the pin insertion operation. After the pin insertion is completed, the subsequent plastic body 100 to be inserted will be pushed to the pin insertion station, and the plastic body 100 that has been inserted will be squeezed out of the pin insertion station and can be stored in the container.

[0036] Furthermore, the first feeding mechanism includes a second vibrating plate 20 and a second conveying channel 21 for conveying the rows of PIN needles Z1;

[0037] The pin insertion device includes a receiving head 31 provided with a plurality of placement holes 310 (the aperture of the placement hole 310 needs to be slightly larger than the diameter of the PIN needle Z1 to facilitate the support of the PIN needle Z1 thereon), and a driving mechanism that can drive the receiving head 31 to move to one side of the pin receiving station to receive the PIN needle Z1, and can drive the receiving head 31 to move to one side of the pin insertion station to insert the PIN needle Z1. Specifically, the driving mechanism includes a third driver 32 (composed of a cylinder) whose power output shaft is fixedly connected to the receiving head 31, a support plate 33 fixedly connected to the cylinder body of the third driver 32, and a fourth driver 34 (composed of a cylinder) that drives the support plate 33 to move up and down. The movement direction of the power output shaft of the third driver 32 is consistent with the extension direction of the second conveying channel 21.

[0038] The automatic assembly mechanism also includes a blocking mechanism for preventing the PIN Z1 at the end of the second conveying channel 21 from slipping out. The blocking mechanism includes a fixed base 41 fixed relative to the equipment frame, a blocking block 42 movable in the vertical direction and capable of blocking the outlet at the end of the second conveying channel 21, and an elastic member 43 that tends to push the blocking block 42 downward to block the outlet at the end of the second conveying channel 21. The automatic assembly mechanism also includes a pushing structure that tends to push the blocking block 42 upward when the receiving head 31 moves to one side of the pin receiving station to receive the PIN Z1. The pushing structure includes a first transmission slope m1 formed on the side of the receiving head 31 close to the blocking block 42, and a second transmission slope m2 formed on the side of the blocking block 42 close to the receiving head 31 and coordinated with the first transmission slope m1. When the receiving head 31 moves horizontally toward the needle receiving station, the first transmission slope m1 thereon can convert the force of the lateral movement of the receiving head 31 into the force of the upward movement of the blocking block 42 through the second transmission slope m2, so that the blocking block 42 no longer blocks the PIN needle Z1 and makes room for the receiving head 31 to receive the PIN needle Z1. After the receiving head 31 receives the PIN needle Z1, the blocking block 42 automatically blocks the end outlet of the second conveying channel 21 downward under the action of the elastic member 43, preventing the PIN needle Z1 from sliding out of the second conveying channel 21.

[0039] In summary, the circuit board pin header automatic assembly mechanism of the present invention avoids the manual pin insertion operation through automated design, greatly improves production efficiency, reduces labor intensity, reduces labor cost expenditure, and improves corporate competitiveness under the background of automated production.

[0040] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the scope of protection of the present invention. Any equivalent changes or modifications made based on the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic assembly mechanism for inserting multiple pins into a plastic body of a circuit board pin header, having a pin receiving station and a pin inserting station formed on its equipment frame, comprising: A first feeding mechanism for supplying rows of PIN pins to the pin connection station; A second feeding mechanism is provided on the equipment frame for sequentially supplying plastic bodies to the pin insertion station. The second feeding mechanism includes a vibration plate mechanism for sorting the batches of plastic bodies and supplying them sequentially, and a positioning mechanism that interfaces with the vibration plate mechanism and positions the plastic bodies supplied by the vibration plate mechanism to the pin insertion station one by one. A pin insertion device for inserting PIN pins arranged in a row on the pin receiving station into the plastic body on the pin inserting station, the pin insertion device including a receiving head provided with a plurality of placement holes, a driving mechanism capable of driving the receiving head to move to one side of the pin receiving station to receive the PIN pins, and a driving mechanism capable of driving the receiving head to move to one side of the pin inserting station to insert the PIN pins; a blocking mechanism for preventing the PIN needle at the end of the second delivery channel from sliding out; Push structure; Its characteristics are: The blocking mechanism includes a fixed seat fixed relative to the equipment frame, a blocking block movably arranged in the up-down direction and capable of blocking the terminal outlet of the second conveying channel, and an elastic member tending to push the blocking block downward to block the terminal outlet of the second conveying channel; The pushing structure tends to push the blocking block upward when the receiving head receives the PIN needle. The pushing structure includes a first transmission inclined surface formed on the side of the receiving head close to the blocking block, and a second transmission inclined surface formed on the side of the blocking block close to the receiving head and cooperated with the first transmission inclined surface. When the receiving head moves horizontally toward the needle receiving station, the first transmission inclined surface converts the force of the lateral movement of the receiving head into an upward force for the blocking block through the second transmission inclined surface, so that the blocking block no longer blocks the PIN needle and makes room for the receiving head to receive the PIN needle. After the receiving head receives the PIN needle, the blocking block automatically blocks the end outlet of the second conveying channel downward under the action of the elastic member.

2. The circuit board pin header automatic assembly mechanism according to claim 1, characterized in that: The vibration plate mechanism includes a first vibration plate and a first conveying channel for conveying plastic; the first feeding mechanism includes a second vibration plate and a second conveying channel for conveying rows of PIN needles.

3. The automatic assembly mechanism for pin headers of a circuit board according to claim 2, characterized in that: The positioning mechanism includes a positioning channel, and the pin insertion station is connected to the outlet of the positioning channel. The positioning mechanism also includes a first feeding mechanism for feeding the plastic bodies on the first conveying channel to the entrance of the positioning channel one by one, and a second feeding mechanism for driving the plastic bodies to move and pass through the positioning channel to the pin insertion station.

4. The automatic assembly mechanism for pin headers for a circuit board according to claim 3, characterized in that: The first feeding mechanism includes a sliding carrying block arranged between the first conveying channel and the positioning channel, the carrying block has a first position and a second position, and the first feeding mechanism also includes a first driver that drives the carrying block to move to the first position and the second position. When the carrying block is in the first position, the carrying block docks with the end of the first conveying channel, and a plastic body at the end of the first conveying channel can move onto the carrying block; when the carrying block slides to the second position, the carrying block docks with the positioning channel, and the second feeding mechanism can drive the plastic body on the carrying block to move to the pin insertion station.

5. The automatic assembly mechanism for pin headers of a circuit board according to claim 3, characterized in that: The second feeding mechanism includes a push rod capable of sliding in the positioning channel and a second driver for driving the push rod to move.

6. The automatic assembly mechanism for pin headers of a circuit board according to claim 5, characterized in that: The power output shaft of the second driver is fixedly connected to one end of the push rod through a connecting plate. The push rod is arranged parallel to the power output shaft of the second driver, and the other end of the push rod extends toward the side where the second driver cylinder is located.

7. The automatic assembly mechanism for pin headers of a circuit board according to claim 2, characterized in that: The pin connection station is located above the pin insertion station.

8. The automatic assembly mechanism for pin headers of a circuit board according to claim 1, characterized in that: The driving mechanism includes a third driver whose power output shaft is fixedly connected to the connecting head, a support plate fixedly connected to the cylinder of the third driver, and a fourth driver that drives the support plate to move up and down. The movement direction of the power output shaft of the third driver is consistent with the extension direction of the second conveying channel.

Images