CN117545190A - Pin machine and circuit board supporting seat structure thereof - Google Patents

Abstract

The invention relates to a pin inserting machine and a circuit board supporting seat structure thereof, wherein the circuit board supporting seat structure comprises a pin inserting position detection structure, the pin inserting position detection structure comprises a supporting seat, a crank arm swinging rod, a hinge shaft, a reset spring, a receiving rod and a position monitoring sensor, the supporting seat is provided with a containing cavity, the crank arm swinging rod comprises a longitudinal swinging arm which is integrally connected with the transverse swinging arm, the crank arm swinging rod is arranged on the hinge shaft in a sleeved mode in a swinging mode, two ends of the hinge shaft are fixedly connected to the cavity wall of the containing cavity, the reset spring is fixedly arranged on the cavity wall of the containing cavity, one end of the reset spring is connected with the longitudinal swinging arm, the receiving rod can be arranged in the containing cavity in a vertical sliding mode, the top end of the receiving rod penetrates out of the containing cavity, the bottom end of the receiving rod is connected with the transverse swinging arm, and the position monitoring sensor monitors the position of the longitudinal swinging arm in real time. When the PIN is inserted into the PIN, the PIN is downwards abutted to the bearing rod to drive the crank swing rod to swing around the hinge shaft, and the position monitoring sensor monitors the position change of the crank swing rod so as to judge whether the PIN is inserted into the insertion hole on the circuit board or not and the insertion depth.

Description

Pin machine and circuit board supporting seat structure thereof

Technical Field

The invention relates to the field of circuit board processing equipment, in particular to a pin inserting machine and a circuit board supporting seat structure thereof.

Background

The PIN inserting machine is equipment which is widely applied to automatic PIN inserting in the industries of electronic component manufacturing, circuit board manufacturing, electric tool manufacturing, automobile manufacturing and the like, for example, the PIN inserting machine is used for manufacturing a connecting terminal on a circuit board, and a PIN PIN is pressed onto the circuit board to form an electric connecting terminal.

The PIN inserting machine comprises a machine table, a PIN belt conveying mechanism, a circuit board conveying mechanism and a PIN inserting mechanism, wherein the PIN belt conveying mechanism is arranged on the machine table, the PIN belt is conveyed to the PIN inserting mechanism through the PIN belt conveying mechanism, the circuit board conveying mechanism conveys the circuit board to the lower side of the PIN inserting mechanism, the PIN inserting mechanism cuts the PIN on the PIN belt into single PINs, then the single PINs are pressed down and inserted into the circuit board, as shown in fig. 1, the PIN 1 with one PIN connected front and back is arranged on the material belt, the material belt is normally coiled and is arranged on a reel, during processing, the material belt is rotated through the reel, the PIN 1 on the material belt sequentially enters the PIN inserting mechanism, the PIN on the front end of the material belt is firstly cut off from the material belt (namely, connecting materials among adjacent PIN PINs are cut off), the cut off single PIN is obtained, then the PIN is pressed into corresponding inserting holes 2 on the circuit board which are moved to the position, and then the circuit board is output through the circuit board conveying mechanism after all PIN inserting holes on the circuit board are inserted.

When the PIN is inserted, namely, when the circuit board on the circuit board conveying mechanism receives the pressed PIN PIN, whether the PIN is accurately inserted in place is detected, and the pressure which can be received by the circuit board is considered, so that the PIN can not be fully inserted into the jack on the circuit board, poor electrical conduction with a circuit on the circuit board is caused, and the circuit board is possibly damaged due to overlarge insertion pressure; the supporting seat structure of the matched plugging mechanism is generally arranged on the machine, the circuit board is supported by the supporting seat structure, the pins of the pin plugging mechanism are matched, and whether the pressure of plugging in or plugging down is overloaded or not is required to be further improved by the existing supporting seat structure of the pin plugging machine.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides a circuit board supporting seat structure of a pin inserting machine, which can accurately detect whether the pin is inserted in place or whether the pressure of the pin inserting is overloaded for timely feedback.

The invention is realized by the following technical scheme:

the circuit board supporting seat structure of the PIN inserting machine comprises a PIN inserting position detecting structure, wherein the PIN inserting position detecting structure comprises a supporting seat, a plurality of crank arms, a hinged shaft, a plurality of reset springs, a plurality of connecting rods and a plurality of position monitoring sensors, the supporting seat is provided with a containing cavity, through holes are formed in the top ends of the containing cavity, the crank arms comprise longitudinal swing arms which are integrally connected with the transverse swing arms, the hinged holes are formed in the connecting positions of the transverse swing arms and the longitudinal swing arms, the crank arms are arranged on the hinged shaft in a sleeved mode in a swinging mode through the hinged holes, two ends of the hinged shaft are fixedly connected to the cavity wall of the containing cavity, the reset springs are fixedly arranged on the cavity wall of the containing cavity, one ends of the reset springs are connected with the longitudinal swing arms, the connecting rods are arranged in the containing cavity in a sliding mode up and down, the top ends of the connecting rods penetrate through the through holes, the bottom ends of the connecting rods are connected with the transverse swing arms, the position monitoring sensors are arranged in the containing cavity, positions of the longitudinal swing arms are monitored in real time, when PINs of the PIN inserting machine are inserted into PINs, the PINs are downwards held on the bottom surfaces of PIN inserting holes of the circuit board, the PINs are driven to rotate around the hinge arms, and the positions of the swing arms are monitored by the PINs, and the PIN inserting positions change to the positions of the PINs through the PINs.

Further, the circuit board supporting seat structure comprises a pin pressure sensing structure, the pin pressure sensing structure comprises a pressure sensor, and the pin pressure sensing structure is arranged at the bottom of the supporting seat so as to sense the magnitude of the downward pressure in real time when the supporting seat is pressed down during pin insertion.

Further, the circuit board supporting seat structure comprises a supporting seat lifting mechanism for driving the supporting seat to lift so as to be close to or far away from the bottom surface of the circuit board.

Further, supporting seat elevating system includes lifter and lift drive assembly, the lifter top is connected with pressure sensor, lift drive assembly includes solid board, lifter driving motor, lift transfer wheel and lift motor drive belt, gu the board fixedly set up on the board of contact pin machine, lifter driving motor installs fixedly on solid board, lift transfer wheel cover is established on the lifter, lift motor drive belt transmission connects lifter driving motor's output shaft and lift transfer wheel, lift transfer wheel adopts ball spline lead screw structure with the lifter.

Further, the supporting seat lifting mechanism comprises a lifting position sensing mechanism for sensing the limit of the lifting rod after lifting or descending in place, the lifting position sensing mechanism comprises an upper sensing emitter, a lower sensing emitter and a sensing receiver, the upper sensing emitter and the lower sensing emitter are fixedly arranged on the fixing plate up and down according to preset intervals, and the sensing receiver is fixedly arranged at the bottom end of the lifting rod for sensing with the upper sensing emitter or the lower sensing emitter.

Further, the circuit board supporting seat structure comprises a supporting seat rotating mechanism for driving the supporting seat to rotate, so that the position adjustment of the adjusting and receiving rod and the pin hole on the plane is realized.

Further, the supporting seat rotating mechanism comprises a rotary driving motor, a rotary driving wheel and a rotary motor driving belt, wherein the rotary driving motor is fixedly arranged on a machine table of the pin inserting machine, the rotary driving wheel is fixedly sleeved on the lifting rod, the rotary motor driving belt is in transmission connection with an output shaft of the rotary driving motor and the rotary driving wheel, and the lifting rod is driven to rotate through driving of the rotary driving motor.

Further, the crank arm swing rod, the reset spring and the position monitoring sensor are corresponding to the number of the ejector rods.

In addition, the invention needs to provide a pin inserting machine with the circuit board supporting seat structure.

The utility model provides a contact PIN machine, includes board, circuit board conveying structure, needle area feeding mechanism and the contact PIN mechanism of setting on the board, sends into circuit board to contact PIN mechanism below through circuit board conveying structure piece by piece, and needle area feeding mechanism sends into the needle area to contact PIN mechanism, and contact PIN mechanism cuts the PIN needle on the needle area and the crimping is to the contact PIN hole that corresponds on the circuit board in, contact PIN machine still includes circuit board supporting seat structure, circuit board supporting seat structure is located contact PIN mechanism below, when contact PIN mechanism inserts the PIN needle to the circuit board under, circuit board supporting seat structure supports in the spliced eye below that corresponds on the circuit board for whether detect the PIN needle is inserted in place and monitor the pressure of inserting.

Compared with the prior art, the invention has the following beneficial effects: the pin inserting mechanism can realize the detection of whether the pins are accurately inserted into the corresponding pin holes by arranging the pin positioning detection structure, and meanwhile, the downward pressure is prevented from directly impacting the circuit board supporting seat structure, and the buffer effect is achieved after the downward pressure is conducted; through setting up contact pin pressure sensing structure in contact pin position detection structure below, can detect the contact pin in real time and insert down the pressure, timely feedback when pressure is transshipping, through setting up supporting seat elevating system, drive contact pin position detection structure and go up and down, realized contact pin position detection structure's take-off and crank arm pendulum rod's disconnection, through setting up supporting seat rotary mechanism, can drive contact pin position detection structure and rotate in the horizontal plane, thereby can satisfy the position control of different contact pin holes, satisfy the contact pin detection of different contact pin holes on the circuit board.

Drawings

FIG. 1 is a schematic diagram of a tape and circuit board for a pin machine;

FIG. 2 is a perspective view of the pin machine of the present invention;

fig. 3 is a perspective view of the board feeding and conveying mechanism of the circuit board conveying structure;

FIG. 4 is a diagram of a mobile station mechanism of the circuit board transport structure;

FIG. 5 is another perspective view of the mobile station mechanism shown in FIG. 4;

FIG. 6 is a perspective view of a jack mechanism of the mobile station mechanism;

FIG. 7 is a front view of the tightening mechanism shown in FIG. 6;

FIG. 8 is a cross-sectional view of a circuit board support mounted to a machine;

FIG. 9 is a perspective view of a circuit board support base structure;

FIG. 10 is a cross-sectional view of a circuit board support base structure;

FIG. 11 is a perspective view of an insert orientation sensing structure of the circuit board support base structure;

FIG. 12 is a perspective view of a pin alignment detection structure of a circuit board support base structure mated with a pin pressure sensing structure;

fig. 13 is a cross-sectional view of fig. 11.

The reference numerals are explained as follows:

a PIN needle 1; a plug hole 2; a machine 101; a circuit board transfer structure 102; a needle belt feeding mechanism 103; a pin mechanism 104; a board feeding mechanism 1021; a discharge plate conveying mechanism 1022; a mobile station mechanism 1023; a reel 1031; a fixing plate 11; a guide rod 12; a slide plate 13; a slide plate driving mechanism 14; a conveyor belt 15; a conveyor belt driving mechanism 16; a screw rod 142; a transfer axle 162; a pulley set 163; a belt pulley 164; two end guide wheel sets 165; an auxiliary guide wheel set 166; a traversing sliding table 21; longitudinally moving the butt joint sliding table 22; a longitudinally moving conveying mechanism 23; a tightening mechanism 24; a lateral fixed rail 211; a lateral sliding rail 212; a longitudinal fixed rail 221; a longitudinal sliding frame plate 222; a longitudinal transfer rail 231; track frame 2311; a conveyor belt driving motor 2312; width adjusting driving motor 2321; width adjusting screw 2322; a connection arm 2323; a top plate 2313; a lifting frame 241; a lift driving cylinder 242; a connector 2411; a push rod 2412; a transverse hinge bolt 2413; a longitudinal hinge bolt 2414; a support base 31; crank arm swing rod 32; a hinge shaft 33; a return spring 34; a receiving rod 35; a position monitoring sensor 36; a base 311; a cavity cylinder 312; a top base 313; a swing arm 321; a longitudinal swing arm 322; a connection base 41; a pressure sensor 42; a lifting rod 51; a rod body 511; a connecting member 512; a fixing plate 521; a lifter driving motor 522; a lifting transfer wheel 523; uploading the sensing transmitter 531; a lower sensing transmitter 532; a sensing receiver 533; a rotation driving motor 621; the driving wheel 622 is rotated.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 2 and 3, a PIN inserting machine according to a preferred embodiment of the present invention includes a machine 101, a circuit board conveying structure 102, a PIN tape feeding mechanism 103, a PIN inserting mechanism 104 and a circuit board supporting seat structure (not shown) disposed on the machine 101, wherein the circuit board (not shown) is fed to the lower portion of the PIN inserting mechanism 104 one by one through the circuit board conveying structure 102, the PIN tape feeding mechanism 103 feeds PINs to the PIN inserting mechanism 104, the PIN inserting mechanism 104 cuts and presses PIN PINs on the PIN tape into corresponding PIN holes on the circuit board, the circuit board supporting seat structure is disposed below the PIN inserting mechanism 104, and when the PIN inserting mechanism 104 inserts PIN PINs into the circuit board, the circuit board supporting seat structure is supported below corresponding PIN holes on the circuit board for detecting whether the PIN PINs are inserted in place and monitoring the inserted pressure, so that PINs on each PIN hole on the circuit board are completed, and then the circuit board is output through the circuit board conveying structure 102.

The circuit board conveying structure 102 comprises a board feeding conveying mechanism 1021, a board discharging conveying mechanism 1022 and a moving table mechanism 1023 arranged between the board feeding conveying mechanism 1021 and the board discharging conveying mechanism 1022, wherein the board feeding conveying mechanism 1021 is arranged at one end of the upper surface of the machine 101 so as to enable a circuit board to enter from the board feeding conveying mechanism 1021 along the longitudinal direction, the board discharging conveying mechanism 1022 is arranged at one end of the upper surface of the machine 101 opposite to the board feeding conveying mechanism 1021 so as to enable a circuit board after pins to flow out from the board discharging conveying mechanism 1022 along the longitudinal direction, the moving table mechanism 1023 can transversely move between the board feeding conveying mechanism 1021 and the board discharging conveying mechanism 1022, when the circuit board is conveyed, the moving table mechanism 1023 receives the circuit board of the board feeding conveying mechanism 1021 through the moving table mechanism 1023, the moving table mechanism 1023 transversely moves the circuit board to the lower side of the pin inserting mechanism 104, the moving table mechanism 1023 transversely returns after the pin inserting is completed, and then the circuit board is transferred to the board discharging conveying mechanism 1022 for outputting. The PIN tape feeding mechanism 103 includes a reel 1031, and the PIN tape is fed into the PIN mechanism 104 by unreeling the reel 1031, and the PIN mechanism 104 cuts and pushes down PIN PINs on the tape. In this embodiment, the reel-up plate 1031 of the pin machine shown in fig. 2 is provided in four, and four pin mechanisms 104 are correspondingly provided. In the embodiment of the present application, specific structures of the pin belt feeding mechanism 103 and the pin mechanism 104 are not described in detail, and corresponding structures existing in the industry can be adopted.

Referring to fig. 3, the board feeding mechanism 1021 of the circuit board conveying structure 102 includes two fixing boards 11, a plurality of guide rods 12, a sliding board 13, a sliding board driving mechanism 14, two conveying belts 15 and a conveying belt driving mechanism 16, the two fixing boards 11 are arranged on the machine 101 in parallel along the longitudinal direction, the plurality of guide rods 12 are transversely connected between the two fixing boards 11, the sliding board 13 is parallel to the fixing boards 11 and sleeved on the guide rods 12 and can slide transversely along the guide rods 12, the sliding board driving mechanism 14 adopts a motor screw mechanism, and comprises a sliding board driving motor (not shown) and a screw rod 142, the sliding board driving motor is fixedly arranged on the fixing boards 11, a motor shaft of the sliding board driving motor is connected with the screw rod 142 through a belt, the screw rod 142 is driven to rotate through the rotation of the motor shaft, the screw rod 142 is parallel to the guide rods 12 and penetrates through the sliding board 13, a hole through which the screw rod 142 penetrates is a screw hole, the screw rod 142 is matched with the screw rod 142 through the threaded screw hole, and the sliding board 13 is driven to move along the guide rod 12 through the screw rod 142 through the rotation of the screw rod 142, and thus the clearance between the sliding board and the fixing board 11 is adjusted. It can be appreciated that, for smooth movement of the sliding plate 13, two screw rods 142 may be provided to be in threaded engagement with the sliding plate 13, the two screw rods 142 may be driven by a sliding plate driving motor, and the ends of the two screw rods 142 are connected by a belt, so that the screw rod 142 directly connected to the sliding plate driving motor may drive the other screw rod 142 to rotate synchronously.

The two conveyor belts 15 are oppositely arranged for bearing on two sides of the bottom of the circuit board, one of the conveyor belts is arranged on one side of the fixed plate 11, the other conveyor belt is arranged on one side of the sliding plate 13, and the conveyor belts 15 on one side of the sliding plate 13 are driven to move by the movement of the sliding plate 13, so that the distance between the two conveyor belts 15 is adjusted, and the conveying of circuit boards with different widths is met.

The belt driving mechanism 16 is used for driving two belts 15 to rotate synchronously in the same direction, the belt driving mechanism 16 comprises a belt driving motor, a belt wheel shaft 162, a belt wheel set 163, belt pulleys 164, two end guide wheel sets 165 and an auxiliary guide wheel set 166, the belt driving motor is fixedly installed on the fixed plate 11, two ends of the belt wheel shaft 162 are rotatably installed on the two fixed plates 11 and pass through the sliding plate 13, the belt wheel set 163 is connected with an output shaft of the belt driving motor and the belt wheel shaft 162, the belt wheel shaft 162 is driven to rotate by the rotation of the output shaft of the belt driving motor, the belt pulleys 164 are respectively arranged on one side of the fixed plate 11 and one side of the sliding plate 13, the belt pulleys 164 are respectively used for matching the two belts 15, the belt pulleys 164 are driven to rotate by the rotation of the belt pulleys 164, each belt pulley 164 is sleeved on the belt wheel shaft 162, the belt pulleys 164 are driven to rotate by the rotation of the belt pulleys 162, in the embodiment, the belt wheel shaft 162 adopts a non-cylindrical shaft, and the belt pulleys 164 are correspondingly sleeved holes are polygonal prisms.

Further, in order to ensure that the belt pulley 164 mounted on one side of the sliding plate 13 slides along with the sliding plate 13 when the sliding plate 13 slides, that is, the belt pulley 164 on one side of the sliding plate 13 slides along the transmission wheel shaft 162 when the sliding plate 13 slides, the belt pulley 164 is connected to the sliding plate 13 through a bearing (not shown), such as a ball bearing, so that the belt pulley 164 is driven to slide along the transmission wheel shaft 162 when the sliding plate 13 slides, and the belt pulley 164 is driven to rotate when the transmission wheel shaft 162 rotates, so that the belt pulley 164 cannot rotate due to the fixed connection to the sliding plate 13. It will be appreciated that the aperture in the slide plate 13 through which the transfer axle 162 passes is a circular aperture, and that the transfer axle 162 is not obstructed by the slide plate 13 when rotated.

The two end guide wheel sets 165 are respectively installed on one side of the fixed plate 11 and one side of the sliding plate 13, and each of the two end guide wheel sets 165 has two guide wheels respectively installed on two ends of one side of the fixed plate 11 for guiding the conveyor belt 15 to be horizontally conveyed in two layers.

The auxiliary guide wheel sets 166 are two sets, and are respectively installed on one side of the fixed plate 11 and one side of the sliding plate 13, and each auxiliary guide wheel set 166 comprises two guide wheels which are respectively located on two sides of the belt pulley 164 so as to guide the belt 15 to horizontally convey after passing through the belt pulley 164.

It can be seen that the board feeding and conveying mechanism 1021 can meet the requirements of circuit board conveying with different widths. Further, a counter or marking member may be mounted on the fixing plate 11 at the end of the feeding plate conveying mechanism 1021 to count or mark the conveyed circuit board.

The out-board conveying mechanism 1022 is identical in structure to the in-board conveying mechanism 1021, and will not be described here.

Referring to fig. 4, the moving table mechanism 1023 of the circuit board conveying structure 102 includes a traversing sliding table 21, a longitudinally moving butt-joint sliding table 22, a longitudinally moving conveying mechanism 23 and a tightening mechanism 24, the traversing sliding table 21 is used for driving the circuit board to slide transversely, transferring the circuit board to the lower part of the pin mechanism 104, the traversing sliding table 21 adopts a sliding module, the traversing sliding table 21 includes two transversely fixed rails 211 fixedly installed on the machine table 101 and transversely sliding rails 212 slidably installed on each transversely fixed rail 211, the two transversely fixed rails 211 are parallelly installed on the machine table 101 and extend transversely, and it is understood that an electric driving unit (such as a motor screw unit) is installed in the traversing sliding table 21, and the transversely sliding rails 212 slide along the transversely fixed rails 211 after the electric driving unit is electrified. The traverse slipway 21 can be obtained by direct purchasing. The longitudinally moving butt joint sliding table 22 comprises two longitudinally fixed rails 221 and longitudinally sliding frame plates 222 slidably arranged on the two longitudinally fixed rails 221, the two longitudinally fixed rails 221 are vertically arranged on the transversely sliding rails 212 of the transversely moving sliding table 21, two ends of each longitudinally fixed rail 221 are fixedly arranged on the two transversely sliding rails 212 respectively, and the longitudinally fixed rails 221 extend longitudinally. The center of the longitudinal sliding frame plate 222 is provided with a frame hole, two sides of the bottom surface of the longitudinal sliding frame plate 222 are respectively and longitudinally slidably installed on the two longitudinal fixed rails 221, it can be understood that the longitudinal moving butt joint sliding table 22 can also adopt a sliding module, and the longitudinal sliding frame plate 222 slides along the longitudinal fixed rails 221 after being electrified. The vertical sliding frame plate 222 slides in the vertical direction to receive and deliver the circuit board conveyed by the board feeding mechanism 1021 to the board discharging mechanism 1022.

The longitudinal moving and conveying mechanism 23 is used for conveying the circuit board conveyed by the board feeding and conveying mechanism 1021 along the longitudinal direction, and comprises two longitudinal conveying rails 231 and a width adjusting driving mechanism which are arranged in parallel, wherein one longitudinal conveying rail 231 is fixedly arranged on the longitudinal sliding frame plate 222, and the other longitudinal conveying rail 231 can transversely move on the longitudinal sliding frame plate 222, so that the distance between the two longitudinal conveying rails 231 is adjusted, and the purpose of conveying circuit boards with different widths is met. Each longitudinal conveyor rail 231 includes a track frame 2311, a conveyor belt structure (not shown) mounted on the track frame, and a conveyor belt drive motor 2312. The track frame 2311 of the longitudinal conveying rail 231 fixedly arranged on the longitudinal sliding frame plate 222 is fixedly arranged on the longitudinal sliding frame plate 222 along the longitudinal direction, and the conveying belt of the conveying belt structure is driven to operate by the conveying belt driving motor 2312; the other rail frame 2311 of the longitudinal conveying rail 231 slidably disposed on the longitudinal sliding frame plate 222 is laterally slidably disposed on the longitudinal sliding frame plate 222, and drives the conveying belt of the conveying belt structure to operate through the corresponding conveying belt driving motor 2312; it will be appreciated that when the circuit board is being transported, the two conveyor belt drive motors 2312 start the motor shafts to rotate synchronously at the same speed. The width adjusting driving mechanism is used for driving the slidable longitudinal conveying rail 231 to slide transversely, referring to fig. 5, the width adjusting driving mechanism includes a width adjusting driving motor 2321, a width adjusting screw 2322 and a connecting arm 2323, the width adjusting driving motor 2321 is fixedly installed on the bottom surface of the fixed longitudinal sliding frame plate 222, and is located at one end of the fixed longitudinal conveying rail 231, the width adjusting screw 2322 is connected with an output shaft of the width adjusting driving motor 2321, one end of the connecting arm 2323 is provided with a thread bush, sleeved on the width adjusting screw 2322, and the other end is fixedly connected with a slidable track frame 2311 of the longitudinal conveying rail 231, so that the width adjusting screw 2322 is driven to rotate by the width adjusting driving motor 2321, and the thread bush of the connecting arm 2323 is driven to move on the width adjusting screw 2322, so as to drive the track frame 2311 to move together, and the transverse movement of the longitudinal conveying rail 231 is realized. In this embodiment, the connecting arm 2323 is "[" shaped, and bypasses the hole wall of the frame hole of the longitudinal sliding frame plate 222. It can be appreciated that, in order to improve the sliding stability of the slidable longitudinal conveying rails 231, the bottom ends of the two longitudinal conveying rails 231 are provided with a traverse guide bar (not shown) parallel to the width adjusting screw 2322, so as to guide the longitudinal conveying rails 231 to traverse smoothly.

It will be appreciated that the track frame 2311 has a top plate 2313, and when the circuit board is transported, both sides of the circuit board are located between the bottom surface of the top plate 2313 and the surface of the conveyor belt, and the circuit board has a predetermined gap from the bottom surface of the top plate 2313.

The pushing mechanism 24 is used to fix the circuit board when the pins are inserted, and pushes the circuit board upwards, so that the circuit board is pushed against the bottom surface of the top plate 2313. The number of the jacking mechanisms 24 is several, and the jacking mechanisms 24 are respectively and fixedly arranged on the track frames 2311 of the longitudinal conveying rails 231, and the two longitudinal conveying rails 231 are oppositely arranged.

Referring to fig. 5-7, the tightening mechanism 24 includes a lifting frame 241 and a lifting driving cylinder 242, the lifting frame 241 includes a connecting body 2411 and a supporting rod 2412, one end of the connecting body 2411 is connected to a piston rod of the lifting driving cylinder 242, and the other end is provided with the supporting rod 2412. The lifting driving cylinder 242 is installed at the outer side of the track frame 2311 of the longitudinal conveying rail 231, the piston rod is downward, one end of the connecting body 2411 is connected to the piston rod, the other end of the connecting body 2411 extends into the inner side of the track frame 2311, the lower side of the upper layer conveying belt (the whole conveying belt is rectangular and annular and divided into upper and lower layers) in the conveying belt structure, the top surface of the supporting rod 2412 at the other end of the connecting body 2411 is vertically arranged adjacent to the bottom surface of the upper layer conveying belt, the piston rod stretches and contracts through the lifting driving cylinder 242, and when the piston rod retracts, the supporting rod 2412 moves upward to drive the supporting rod 2412 to abut against the bottom surface of the upper layer conveying belt, so that the circuit board is fixed. Further, in order to improve the stability of the abutment, the friction is improved, and the top surface of the abutment post rod 2412 is provided with an anti-slip layer. It can be appreciated that the other end of the connector 2411 may also be disposed beyond the width of the conveyor belt, and then the supporting rod 2412 directly abuts against the bottom surface of the circuit board, so as to clamp the circuit board between the top plate 2313 and the supporting rod 2412.

In this application, further, connector 2411 is configured to be a levelness-adjustable structure, so as to meet the surface adhesion of different circuit boards. The connector 2411 includes three connecting arm segments, a transverse hinge bolt 2413 and a longitudinal hinge bolt 2414, where a first connecting arm segment is connected with a second connecting arm segment by the transverse hinge bolt 2413 to realize front and back deflection on the top surface of the push rod 2412, and a second connecting arm segment is connected with a third connecting arm segment by the longitudinal hinge bolt 2414 to realize position adjustment of the top surface of the push rod 2412 in a horizontal plane.

When the circuit board conveying structure 102 conveys the circuit board, the board feeding conveying mechanism 1021 conveys the circuit board, at the sending end of the board feeding conveying mechanism 1021, the longitudinal moving conveying mechanism 23 of the moving table mechanism 1023 longitudinally moves to the board feeding conveying mechanism 1021 to receive the circuit board, then longitudinally moves to the position, after transversely moving to the position below the pin inserting mechanism 104, the pushing mechanism 24 pushes the circuit board tightly, after the pin inserting mechanism inserts pins, the longitudinal moving conveying mechanism 23 transversely moves back, then longitudinally moves to the board outputting conveying mechanism 1022, the circuit board is conveyed to the board outputting conveying mechanism 1022, then the longitudinal moving conveying mechanism 23 longitudinally moves back under no load, and the moving table mechanism 1023 circularly moves in this way.

Referring to fig. 8, the circuit board support structure is mounted on the machine 101 and located under the pin mechanism 104, and is used for detecting the position accuracy of the pins corresponding to the upper pin holes of the circuit board and the pressure of the pins inserted down.

Referring to fig. 9-13, the circuit board support structure includes a plug positioning detecting structure, a pin pressure sensing structure, a support lifting mechanism and a support rotating mechanism. The PIN position detection structure is used for checking whether PIN PINs inserted on the circuit board are inserted into corresponding PIN holes, and referring to fig. 12 and 13 in detail, the PIN position detection structure comprises a supporting seat 31, a plurality of crank arms and swing rods 32, a hinge shaft 33, a plurality of reset springs 34, a plurality of bearing rods 35 and a plurality of position monitoring sensors 36, wherein the crank arms and swing rods 32, the reset springs 34 and the position monitoring sensors 36 correspond to the bearing rods 35 in number. The supporting seat 31 comprises a base 311, a cavity cylinder 312 fixedly and vertically arranged on the base 311, and a top seat 313 fixedly arranged on the top surface of the cavity cylinder 312, wherein the cavity cylinder 312 is provided with a containing cavity, the top seat 313 is provided with a seat bottom plate and a tube part extending from the top surface of the seat bottom plate, and a channel of the tube part penetrates through the seat bottom plate and is communicated with the containing cavity.

The crank arm swing rod 32 is L-shaped and comprises a transverse swing arm 321 and a longitudinal swing arm 322 integrally and vertically connected to one end of the transverse swing arm 321, and a hinge hole is formed at the joint of the transverse swing arm 321 and the longitudinal swing arm 322; two ends of the hinge shaft 33 are fixedly connected to the cavity wall in the accommodating cavity, the crank arm swing rod 32 is swingably sleeved on the hinge shaft 33 through a hinge hole, and in a natural state, the yaw arm 321 is horizontal, and the pitch arm 322 is vertically downward. A plurality of crank arms 32 are arranged at equal intervals on the hinge shaft 33, and three crank arms 32 are shown in this embodiment to be mounted on the hinge shaft 33.

The return spring 34 is fixedly arranged on the cavity wall of the accommodating cavity, one end of the return spring 34 is connected with the longitudinal swing arm 322 of the crank arm swing rod 32, and the distance between the longitudinal swing arm 322 and the cavity wall of the accommodating cavity is maintained. The number of the return springs 34 corresponds to the number of the crank arms 32, and each return spring 34 is correspondingly connected with a longitudinal swing arm 322 of one crank arm 32. In this embodiment, three return springs 34 are illustrated as longitudinal arms 322 respectively and correspondingly connected to the three crank arms 32.

The socket rod 35 is used for abutting against a pin, specifically, when the pin is inserted into a pin hole of a circuit board, the bottom end of the pin extends out from the lower end of the pin hole, and when the pin is inserted, the bottom end of the pin is pressed against the top end of the socket rod 35 by arranging the top end of the socket rod 35 at the bottom end of the pin hole of the circuit board, and along with the insertion of the pin, the bottom end of the pin is further pressed against the socket rod 35. The receiving rod 35 is vertically installed in the accommodating cavity, the top end of the receiving rod extends out from the tube part of the top seat 313 at the top of the supporting seat 31, the bottom end of the receiving rod is pressed against the transverse swing arm 321 in the accommodating cavity, and the inserting pin is inserted to drive the receiving rod 35 to press the transverse swing arm 321, so that the crank arm swing rod 32 is driven to swing around the hinge shaft 33, namely, the distance between the longitudinal swing arm 322 and the cavity wall of the accommodating cavity can be changed. In this embodiment, three receiving rods 35 are illustrated, the three receiving rods 35 are arranged flush and extend from the tube portion channel of the top base 313, and the top ends of the three receiving rods 35 respectively correspond to the bottom surfaces of the three plugging holes of the circuit board. It will be appreciated that the wall thickness of the space between adjacent pin holes on the circuit board is small, and that three receiving posts 35 may correspond to three pin holes on the circuit board.

The position monitoring sensor 36 is installed on the cavity wall of the accommodating cavity and is arranged corresponding to the longitudinal swing arm 322 so as to monitor the position change of the longitudinal swing arm 322 in real time, namely the distance change between the longitudinal swing arm 322 and the position monitoring sensor 36. In the present embodiment, the position monitoring sensors 36 are correspondingly arranged in three, and the probes thereof face the pitch arms 322 of the three crank arms 32 respectively. When the position monitoring sensor 36 monitors that the corresponding longitudinal swing arm 322 swings, it can be judged that the PIN is inserted into the corresponding PIN hole, and the PIN is inserted deeper as the swing amplitude is larger, so that the insertion depth of the PIN can be fed back in time.

It can be understood that in this embodiment, three receiving rods 35 are installed on the supporting seat 31, and correspondingly, three crank arms 32, three return springs 34 and three position monitoring sensors 36 are provided, and it can be understood that only one receiving rod 35 may be installed on the supporting seat 31, correspondingly, one crank arm 32, one return spring 34 and one position monitoring sensor 36 are provided, or a plurality of receiving rods 35 are installed on the supporting seat 31, correspondingly, a plurality of crank arms 32, a plurality of return springs 34 and a plurality of position monitoring sensors 36 are installed, and in particular, the number of PIN needles that can be simultaneously used for inserting at one time may be corresponding to the number of PIN needles that can be held by the PIN mechanism 104. If only one PIN is held at a time, a receiving rod 35 is mounted on the support block 31.

The contact pin pressure sensing structure is installed in the bottom of supporting seat 31 for the magnitude of real-time sensing contact pin pushes down pressure, and contact pin pressure sensing structure includes connecting seat 41 and pressure sensor 42, and connecting seat 41 fixedly connects in the base 311 bottom surface of supporting seat 31, and pressure sensor 42 installs in the bottom surface of connecting seat 41, in order to push down the magnitude of pressure to supporting seat 31 when the contact pin, pressure sensor 42 real-time sensing pushes down pressure, if surpass the pressure of predetermineeing, will send and push down abnormal signal, thereby contact pin mechanism 104 stops pushing down.

The supporting seat lifting mechanism is used for driving the supporting seat 31 to lift so as to be close to or far away from the bottom surface of the circuit board; after the supporting seat 31 descends under the drive of the supporting seat lifting mechanism, the return spring 34 returns the crank swing rod 32. The supporting seat lifting mechanism comprises a lifting rod 51 and a lifting driving assembly, the lifting rod 51 is connected to the bottom of the pin pressure sensing structure, the lifting rod 51 comprises a rod body 511 and a connecting piece 512 arranged at the top end of the rod body 511, and the lifting rod 51 is connected with the pressure sensor 42 through the connecting piece 512. The lifting driving assembly is used for driving the lifting rod 51 to lift, the lifting driving assembly comprises a fixing plate 521, a lifting rod driving motor 522, a lifting conveying wheel 523 and a lifting motor driving belt, the fixing plate 521 is fixedly arranged on the machine table 101, the lifting rod driving motor 522 is fixedly arranged on the fixing plate 521, the lifting conveying wheel 523 is sleeved on a rod body 511 of the lifting rod, an output shaft of the lifting rod driving motor 522 is connected with the lifting conveying wheel 523 through the lifting motor driving belt, the lifting conveying wheel 523 and the rod body 511 adopt a ball spline screw structure, the ball spline screw structure is an existing structure in the industry, the ball spline screw structure is not described herein, the rod body 511 can be driven to lift when the lifting conveying wheel 523 rotates through the cooperation of the ball spline screw structure, and the lifting conveying wheel 523 cannot rotate together with the rod body 511 and cannot cause obstruction to the rotation of the rod body 511 when the rod body 511 rotates. Thus, when the lifting rod 51 lifts, the pin pressure sensing structure and the pin position detecting structure are driven to lift together.

Further, the support base lifting mechanism includes a lifting position sensing mechanism for sensing the limit of lifting or lowering of the lifting rod 51 in place. The elevating position sensing structure includes an upper sensing transmitter 531, a lower sensing transmitter 532, and a sensing receiver 533, wherein the upper sensing transmitter 531 and the lower sensing transmitter 532 are fixedly installed on the machine 101 or the mounting plate 521 up and down at a preset interval, and the sensing receiver 533 is fixedly installed at the bottom end of the rod body 511, so that when the elevating rod 51 is elevated to a limit position, i.e., is close to the bottom surface of the circuit board, the upper sensing transmitter 531 senses with the sensing receiver 533 on the rod body 511 to prevent the rod body 511 from being further elevated, and when the elevating rod 51 is lowered to the limit position, the lower sensing transmitter 532 senses with the sensing receiver 533 on the rod body 511 to prevent the rod body 511 from being further lowered.

The supporting seat rotating mechanism is used for driving the supporting seat 31 to rotate in a plane so that the receiving rod 35 can meet the alignment of pin hole patterns of different circuit boards on the plane. The supporting seat rotating mechanism comprises a rotating driving motor 621, a rotating driving wheel 622 and a rotating motor driving belt, wherein the rotating driving motor 621 is fixedly arranged on the machine table 101, the rotating driving wheel 622 can also be fixedly sleeved on the fixing plate 521, an output shaft of the rotating driving motor 621 is connected with the rotating driving wheel 622 through transmission of the rotating driving wheel 622, the rotating driving motor 621 drives the rod 511 to rotate, so that the supporting seat 31 is driven to rotate, and the supporting rod 35 and the supporting seat 31 rotate, so that the adjustment of the alignment of the pin holes of the supporting rod 35 on a plane is realized.

The circuit board supporting seat structure works as follows, the supporting seat lifting mechanism drives the supporting seat 31 to lift, the top surface of the receiving rod 35 is abutted against the bottom surface of the PIN hole on the circuit board, one or more PIN holes are corresponding to the number of the receiving rod 35, meanwhile, the supporting seat 31 is driven to rotate through the supporting seat rotating mechanism, the positions of the receiving rod 35 and the PIN holes on the plane are adjusted to correspond, when a PIN is inserted into the PIN hole and abutted against the receiving rod 35, the PIN is further inserted downwards to drive the crank arm swing rod 32 to swing around the hinge shaft 33, the position monitoring sensor 36 monitors the position change of the crank arm swing rod 32, and whether the PIN is inserted into the corresponding insertion hole or not and the insertion depth can be judged; the pressure sensor 42 senses the magnitude of the pressing pressure in real time, if the pressure is too high and the real-time feedback stops continuously pressing, the supporting seat 31 is driven by the supporting seat lifting mechanism to descend, and the return spring 34 returns the crank swing rod 32.

The pin inserting machine can realize the detection of whether the pins are accurately inserted into the corresponding pin holes by arranging the pin position detection structure, and simultaneously avoid the direct impact of the downward pressure on the circuit board supporting seat structure, thereby playing a role in buffering the downward pressure after being conducted; through setting up contact pin pressure sensing structure in contact pin position detection structure below, can detect the contact pin in real time and insert down the pressure, timely feedback when pressure is transshipping, through setting up supporting seat elevating system, drive contact pin position detection structure and go up and down, realized contact pin position detection structure's take-off and crank arm pendulum rod's disconnection, through setting up supporting seat rotary mechanism, can drive contact pin position detection structure and rotate in the horizontal plane, thereby can satisfy the position control of different contact pin holes, satisfy the contact pin detection of different contact pin holes on the circuit board.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the same way.

Claims (9)

1. A circuit board supporting seat structure of a pin inserting machine is characterized in that: the PIN alignment detection structure comprises a PIN alignment detection structure, the PIN alignment detection structure comprises a supporting seat (31), a plurality of crank arms and swing rods (32), a hinge shaft (33), a plurality of reset springs (34), a plurality of connecting rods (35) and a plurality of position monitoring sensors (36), wherein the supporting seat (31) is provided with a containing cavity, the top end of the containing cavity is provided with a through hole, the crank arms and swing rods (32) comprise longitudinal swing arms (322) which are integrally connected, hinge holes are formed at the connecting positions of the longitudinal swing arms (321) and the longitudinal swing arms (322), the crank arms and the swing arms (32) are sleeved on the hinge shaft (33) in a swinging way through the hinge holes, two ends of the hinge shaft (33) are fixedly connected to the cavity wall of the containing cavity, the reset springs (34) are fixedly arranged on the cavity wall of the containing cavity, one end of each reset spring (34) is connected with the corresponding longitudinal swing arm (322), the corresponding connecting rod (35) is arranged in the containing cavity in a sliding way up and down, the top end of each connecting rod penetrates through the through hole, the corresponding longitudinal swing arm (321), the position monitoring sensor (36) is arranged in the containing cavity, the corresponding PIN monitoring sensor (36) is arranged in the corresponding containing cavity, the PIN alignment sensor (36) is arranged in the connecting position monitoring cavity, the PIN alignment sensor (35) is arranged in the PIN alignment board (35) and drives the PIN alignment sensor (32) to be inserted into the PIN alignment sensor (32) when the PIN alignment sensor (35) and is in the PIN alignment circuit (PIN alignment position monitor circuit) and changes, so as to judge whether the PIN of the plugging hole on the circuit board is plugged or not and the plugging depth.

2. The circuit board support base structure according to claim 1, wherein: the pin pressure sensing structure comprises a pressure sensor (42), and is arranged at the bottom of a supporting seat (31) so as to sense the magnitude of the downward pressure in real time by the pressure sensor (42) when the supporting seat is pressed down during pin insertion.

3. The circuit board support base structure according to claim 1, wherein: comprises a supporting seat lifting mechanism for driving the supporting seat (31) to lift so as to be close to or far away from the bottom surface of the circuit board.

4. A circuit board support base structure according to claim 3, wherein: the supporting seat lifting mechanism comprises a lifting rod (51) and a lifting driving assembly, the top end of the lifting rod (51) is connected with a pressure sensor (42), the lifting driving assembly comprises a fixing plate (521), a lifting rod driving motor (522), a lifting conveying wheel (523) and a lifting motor driving belt, the fixing plate (521) is fixedly arranged on a machine table (101) of the pin inserting machine, the lifting rod driving motor (522) is fixedly arranged on the fixing plate (521), the lifting conveying wheel (523) is sleeved on the lifting rod (51), an output shaft of the lifting rod driving motor (522) is connected with the lifting conveying wheel (523) in a driving mode through the lifting conveying belt, and the lifting conveying wheel (523) and the lifting rod (51) are in a ball spline screw structure.

5. The circuit board support base structure according to claim 4, wherein: the supporting seat lifting mechanism comprises a lifting position sensing mechanism, wherein the lifting position sensing mechanism is used for sensing the limit of lifting rods (51) after lifting or descending to be in place, the lifting position sensing mechanism comprises an upper sensing emitter (531), a lower sensing emitter (532) and a sensing receiver (533), the upper sensing emitter (531) and the lower sensing emitter (532) are fixedly arranged on a fixed plate (521) up and down according to preset intervals, and the sensing receiver (533) is fixedly arranged at the bottom end of the lifting rods (51) so as to be sensed by the upper sensing emitter (531) or the lower sensing emitter (532).

6. The circuit board support base structure according to claim 1, wherein: comprises a supporting seat rotating mechanism for driving the supporting seat to rotate, and realizing the position adjustment of the adjusting and receiving rod (35) and the pin hole on the plane.

7. The circuit board support base structure according to claim 6, wherein: the supporting seat rotating mechanism comprises a rotating driving motor (621), a rotating driving wheel (622) and a rotating motor driving belt, wherein the rotating driving motor (621) is fixedly arranged on a machine table (101) of the pin inserting machine, the rotating driving wheel (622) is fixedly sleeved on the lifting rod (51), an output shaft of the rotating driving motor (621) is connected with the rotating driving wheel (622) through transmission of the rotating driving motor (621), and the lifting rod (51) is driven to rotate through driving of the rotating driving motor (621).

8. The circuit board support base structure according to claim 1, wherein: the crank arm swinging rods (32), the reset springs (34) and the position monitoring sensors are corresponding to the number of the ejector rods.

9. The utility model provides a contact PIN machine, includes board (101), circuit board conveying structure (102) that sets up on board (101), needle area feeding mechanism (103), contact PIN mechanism (104), send into circuit board to contact PIN mechanism (104) below through circuit board conveying structure (102) piece by piece, needle area feeding mechanism (103) send into needle area to contact PIN mechanism (104), contact PIN mechanism (104) cut and the crimping with the PIN needle on the needle area in to the contact PIN hole that corresponds on the circuit board, its characterized in that: the circuit board support base structure of any one of claims 1-8, wherein the circuit board support base structure is positioned below the PIN inserting mechanism (104), and when the PIN inserting mechanism (104) inserts the PIN into the circuit board, the circuit board support base structure is supported below corresponding inserting holes on the circuit board so as to detect whether the PIN is inserted in place or not and monitor the inserted pressure.