CN110802404A

CN110802404A - Full-automatic assembling machine for high-voltage large-current connector terminal and technological method thereof

Info

Publication number: CN110802404A
Application number: CN201911255454.2A
Authority: CN
Inventors: 吴文峰; 黄敦新; 季仲致; 王文洪; 赵勇礼
Original assignee: Shenyang Institute of Automation of CAS
Current assignee: Shenyang Institute of Automation of CAS
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-02-18

Abstract

The invention discloses a full-automatic assembling machine of a high-voltage large-current connector terminal and a process method thereof, wherein the assembling machine comprises a machine frame table, a station indexing device, a reed feeding device, a torsion spring device, a beating device, a terminal assembling device, a terminal detection device and a vibration feeding device, wherein a plurality of clamps are uniformly arranged on the outer circumference of the station indexing device and correspond to the reed feeding device, the torsion spring device, the beating device and the terminal assembling device one by one, stations corresponding to the clamps can be processed simultaneously in parallel, the torsion spring device can accurately control the torsion angle to adjust the deformation of the torsion spring, the terminal detection device can automatically detect the terminal plugging force and screen unqualified products, and the plugging force detection result is subjected to statistical analysis to provide an adjusting basis for the torsion spring angle. The automatic loading device can realize automatic loading, automatic material transferring, automatic torsion spring, automatic assembly, automatic insertion and extraction force detection, screening and blanking, realize full-automatic assembly production of the connector terminal and obviously improve the production efficiency.

Description

Full-automatic assembling machine for high-voltage large-current connector terminal and technological method thereof

Technical Field

The invention relates to the technical field of automation equipment, in particular to a full-automatic assembling machine for a high-voltage large-current connector terminal and a process method thereof.

Background

Along with the development of new energy vehicles, quick charging pile and power grid energy storage related industry technologies, the demand for high-voltage and high-current connectors is increasing, and the connector adopting the torsion spring terminal structure has the advantages of good electric connection performance, impact resistance, high reliability, convenience in plugging and unplugging and the like, and is widely applied.

In the prior art, the high-voltage large-current connector terminal is assembled in a manual production mode, and the following defects exist: (1) the manual assembly is easy to cause that the surface of the red copper terminal is stained with finger sweat and oxidized to blacken, so that the subsequent surface silver plating process is influenced and the electrical connection performance is influenced; (2) the deformation of the torsion spring is difficult to control quantitatively, and the insertion and extraction force performance is influenced; (3) the reed is easy to be twisted, the opening is overlapped and dislocated, the end surface assembled in the copper sleeve is not flat, and the subsequent welding process is influenced; (4) when the terminal is manually detected, the plugging speed is uncontrollable, and the detection data is difficult to quantitatively analyze; (5) the manual production efficiency is lower.

Disclosure of Invention

The invention mainly aims to overcome the defects and shortcomings of the prior art, and provides a full-automatic assembling machine for a high-voltage large-current connector terminal, which has high production efficiency and stable production quality, can realize automatic feeding, automatic material transfer, automatic torsion spring and automatic assembly, automatically detects the plugging force, screens and discharges, and realizes full-automatic assembly production of the connector terminal.

The invention also aims to provide a process method of the full-automatic assembling machine for the high-voltage large-current connector terminal.

In order to achieve the first purpose, the invention adopts the following technical scheme:

a full-automatic assembling machine for a high-voltage large-current connector terminal is used for fully automatically twisting a reed to form a torsion spring and assembling the torsion spring and a copper sleeve into the connector terminal and comprises a machine frame table, a station indexing device, a reed feeding device, a torsion spring device, a beating and aligning device, a terminal assembling device, a terminal detecting device and a vibrating and feeding device; the station indexing device is arranged on the stand platform, and a plurality of clamps are arranged on the station indexing device; the plurality of clamps correspond to the spring piece feeding device, the torsion spring device, the patting device and the terminal assembling device which are arranged on the rack table one by one; when the motor drives the station indexing device to move relative to the rack table, the clamp is driven to sequentially pass through the reed loading device, the torsion spring device, the patting device and the terminal assembling device;

the torsion spring device comprises a torsion spring mechanism, and the torsion spring mechanism comprises a first inner positioning block, a second inner positioning block, a reed outer claw, a first clamping cylinder, a second cylinder mounting seat, a first speed-reducing servo motor and a first motor mounting seat; the first inner positioning block is provided with a flange structure, the center of the front end face of the flange is provided with a short shaft structure, the short shaft of the first inner positioning block is provided with a guide conical surface, and the front end face of the short shaft is provided with a positioning hole; the second inner positioning block is provided with a flange structure, the center of the front end face of the flange is provided with a short shaft structure, the short shaft structure is provided with a guide conical surface, the front end face of the short shaft is provided with a positioning pin, and the front end face of the flange of the second inner positioning block is also provided with a groove; the first inner positioning block can perform inner circle and end face positioning on the front end of the reed, the second inner positioning block can perform inner circle and end face positioning on the rear end of the reed, and the positioning hole of the first inner positioning block can be matched with the positioning pin of the second inner positioning block to perform concentric positioning; the front end of the reed outer claw is provided with an arc groove, and the combination of the arc grooves of the reed outer claw can position and clamp the excircle of one end of the reed; the flange of the first inner positioning block can be arranged at the center of a first clamping cylinder, the first clamping cylinder is provided with the reed outer claw, the flange of the second inner positioning block can be arranged at the center of a second clamping cylinder, the second clamping cylinder is provided with the reed outer claw, the second clamping cylinder is arranged on a second cylinder mounting seat, and the first clamping cylinder and the second clamping cylinder can drive the reed outer claw to position and clamp two ends of the reed at the same time; the first speed-reducing servo motor is arranged on the first motor mounting seat, and can drive the first clamping cylinder to rotate at a set angle and drive the front end of the reed to twist, so that the grid region of the reed is twisted and contracts inwards towards the center of the reed to form a hyperboloid deformation to form the torsion spring;

the patting device comprises a patting plate and a patting cylinder, the two patting plates are driven to move by double-cylinder axial symmetry of the patting cylinder, and the patting device is symmetrically arranged on two sides of the clamp so as to patte the reeds and is centered on the clamp;

the vibration feeding device comprises a first vibration disc and a second vibration disc, the first vibration disc continuously vibrates the reed to enable the reed to roll and feed to the reed feeding device, the second vibration disc continuously vibrates the copper sleeve to enable the copper sleeve to roll and feed to the terminal assembling device, and the terminal assembling device finishes assembling the terminal and rolls and discharges to the terminal detecting device under the action of gravity.

As a preferred technical scheme, the station indexing device is a disc-shaped structure and is arranged on the rack, and a plurality of clamps are uniformly arranged on the outer circumference of the station indexing device; the hole can the holding have been seted up to anchor clamps the reed, the internal diameter of the hole of anchor clamps is slightly less than the external diameter of reed, anchor clamps can be right the reed carries out excircle location and centre gripping, the both ends of the hole of anchor clamps are equipped with interior chamfer will the leading-in hole of reed, the length of the hole of anchor clamps is less than the length of reed to make it centre gripping the reed can expose the reed both ends.

As a preferred technical scheme, the reed feeding device comprises a reed sliding groove, a material selecting mechanism, a reed pushing mechanism and an electromagnetic valve assembly, wherein the reed sliding groove is butted with the first vibrating disc, the width of the reed sliding groove is slightly larger than the length of the reed, and the height of the reed sliding groove is slightly larger than the outer diameter of the reed, so that the reed is limited to roll or slide forwards along the groove and cannot jump to the direction or the path;

the material selecting mechanism comprises a first stop block, a first material blocking cylinder, a second stop block, a second material blocking cylinder and a sensor, the first material blocking cylinder drives the first stop block to move, the second material blocking cylinder drives the second stop block to move, the first stop block and the second stop block are arranged on the reed chute, and the distance between the first stop block and the second stop block is adjusted to be equal to the set outer diameter; when the sensor detects that the material is short, the electromagnetic valve assembly controls the second material blocking cylinder to drive the second stop block to extend to block the material to pass through, then controls the first material blocking cylinder to drive the first stop block to withdraw from the waiting material to pass through, when the sensor detects that the material is full, the electromagnetic valve assembly controls the first material blocking cylinder to drive the first stop block to extend to block the material to pass through, and then controls the second material blocking cylinder to drive the second stop block to withdraw from the waiting material to pass through, so that only one reed enters the reed pushing mechanism.

As a preferred technical solution, the spring plate pushing mechanism includes a first V-shaped positioning block, a second inverted V-shaped positioning block, a guide post, a first guide block, a second guide block, a first material pressing cylinder, a first push rod cylinder and a mounting seat, the first V-shaped positioning block is mounted on the mounting seat, the first guide block is disposed on a front end surface of the first V-shaped positioning block, the first guide block is provided with a guide inner hole for guiding the spring plate, the second guide block is disposed on a rear end surface of the first V-shaped positioning block, the second guide block is provided with a guide inner hole for guiding the first push rod, the first material pressing cylinder drives the second inverted V-shaped positioning block to move along the guide post to form a square inner hole in cooperation with the first V-shaped positioning block for performing outer circle positioning and clamping on the spring plate, when the guide inner hole of the first guide block is aligned with the inner hole of the clamp on the station indexing device, and the first push rod cylinder drives the first push rod to push the reed to enter the inner hole of the clamp through the guide inner hole of the first guide block through the guide inner hole of the second guide block.

As a preferred technical scheme, the torsion spring device further comprises a torsion spring driving mechanism and an electromagnetic valve assembly, wherein the torsion spring driving mechanism comprises a bidirectional screw rod assembly, a second speed-reducing servo motor, a torsion spring guide rail assembly, a torsion spring mounting seat, a reed deflector rod, a deflector rod cylinder, a deflector rod guide rail and a photoelectric sensor;

the first motor mounting seat is arranged at the front end of the torsion spring guide rail assembly, the second cylinder mounting seat is arranged at the rear end of the torsion spring guide rail assembly, the torsion spring mounting seat is provided with the torsion spring guide rail assembly, the bidirectional screw rod assembly and the second servo speed reducing motor, the second servo speed reducing motor can drive the bidirectional screw rod assembly to drive the first motor mounting seat and the second cylinder mounting seat to simultaneously move in the opposite direction or opposite direction along the torsion spring guide rail assembly, so that the first inner positioning block and the second inner positioning block are close to or far away from the reed at the same time, the photoelectric sensor detects the distance between the first inner positioning block and the second inner positioning block and the end face of the reed, and then feeds back the distance to the second speed reducing servo motor for position positioning; the reed shifting lever is arranged in a groove in the front end face of the flange of the second inner positioning block, the electromagnetic valve assembly controls the shifting lever cylinder to drive the reed shifting lever to move along the shifting lever guide rail, and the reed shifting lever can block the torsion spring from moving along with the second inner positioning block so as to keep the torsion spring clamped in the clamp.

As a preferred technical scheme, the terminal assembling device comprises a copper bush sliding chute, a terminal assembling mechanism and a solenoid valve assembly, wherein the terminal assembling mechanism comprises a third V-shaped positioning block, a third guide block, a fourth guide block, a torsional spring push rod cylinder, a copper bush push rod cylinder, a push rod guide rail, a copper bush pressing plate cylinder, an assembling mounting seat, a first discharging push rod and a discharging cylinder;

the third V-shaped positioning block is arranged on the assembling and mounting seat and is provided with a V-shaped surface capable of positioning the excircle of the copper sleeve, the third guide block is arranged on the front end surface of the third V-shaped positioning block, the third guide block is provided with a guide inner hole for guiding the torsion spring, the fourth guide block is arranged on the rear end face of the third V-shaped positioning block, the fourth guide block is provided with a guide inner hole for guiding the copper sleeve push rod, the torsion spring push rod is provided with a seam allowance for positioning the inner circle and the end surface of the torsion spring, the front end of the torsion spring push rod is also provided with a positioning hole, the copper sleeve push rod is provided with a spigot capable of positioning the inner circle and the end face of the copper sleeve, the front end of the copper sleeve push rod is also provided with a positioning column, the positioning hole of the torsion spring push rod can be matched with the positioning column of the copper sleeve push rod to perform concentric positioning;

the copper sleeve sliding groove is in butt joint with the second vibrating disc, the inner width of the copper sleeve sliding groove is slightly larger than the length of the copper sleeve, and the inner height of the copper sleeve sliding groove is slightly larger than the outer diameter of the copper sleeve, so that the copper sleeve is limited to roll or slide forwards along the groove and cannot jump to the direction or the path; the copper bush chute is also provided with the material selecting mechanism so that only one copper bush enters the terminal assembling mechanism for positioning and clamping.

As a preferred technical scheme, the solenoid valve assembly can control the copper bush push rod cylinder to drive the copper bush push rod to push the copper bush to a set position of the third V-shaped positioning block along the push rod guide rail for positioning, the solenoid valve assembly controls the copper bush press plate cylinder to drive the copper bush press plate to move so as to clamp the copper bush on the V-shaped surface of the third V-shaped positioning block, and the solenoid valve assembly controls the torsion spring push rod cylinder to drive the torsion spring push rod along the push rod guide rail so as to assemble the torsion spring in the fixture into the copper bush through a guide inner hole of the third guide block to form the terminal; and the third V-shaped positioning block is also provided with a guide hole, when the copper sleeve push rod and the torsion spring push rod are withdrawn from the third V-shaped positioning block, the electromagnetic valve assembly controls the discharging cylinder to drive the first discharging push rod to push the terminal out along the guide hole of the third V-shaped positioning block.

As a preferred technical scheme, the terminal detection device comprises a terminal chute, a terminal detection mechanism, a terminal blanking mechanism and a solenoid valve assembly, wherein the terminal detection mechanism comprises a fourth V-shaped positioning block, a force measuring rod guide block, a terminal pressing plate, a material pressing cylinder, a force measuring rod, a dynamometer, a force measuring guide rail, a lead screw motor, a force measuring base, a terminal discharging push rod, a terminal discharging cylinder and a position sensor;

the fourth V-shaped positioning block is installed on the force measuring base, a V-shaped surface is arranged on the fourth V-shaped positioning block and can be used for positioning the excircle of the terminal, the force measuring rod guide block is arranged on the front end face and the rear end face of the fourth V-shaped positioning block, a guide inner hole is formed in the force measuring rod guide block and guides the force measuring rod, the aperture of the guide inner hole of the force measuring rod guide block is smaller than the outer diameter of the terminal and larger than the outer diameter of the force measuring rod so as to limit the terminal to be in the fourth V-shaped positioning block and the force measuring rod to be inserted into the terminal, the material pressing cylinder drives the terminal pressing plate to move so as to limit the terminal to be in the fourth V-shaped positioning block and to be capable of finely adjusting and floating, the force measuring rod is installed at the front end of the force measuring machine, and the lead screw motor can be provided with an adjustable speed to drive, so as to drive the force measuring rod to insert into and withdraw from the terminal and detect the insertion force and the withdrawal force of the force measuring rod; the fourth V-shaped positioning block is further provided with a guide hole, when the position sensor detects that the force measuring rod exits from the terminal, the electromagnetic valve assembly controls the terminal discharging cylinder to drive the terminal discharging push rod to push the terminal out along the guide hole of the fourth V-shaped positioning block;

the terminal sliding groove is butted with the copper sleeve sliding groove, the terminal sliding groove is provided with an inner groove width which is slightly larger than the length of the terminal and an inner groove height which is slightly larger than the outer diameter of the terminal, so that the terminal is limited to roll or slide forwards along the groove and cannot jump to the direction or the path; the terminal chute is also provided with the material selecting mechanism so that only one terminal enters the terminal detection mechanism for positioning and detection.

As a preferred technical scheme, the terminal blanking mechanism comprises a blanking plate and a blanking cylinder, when the dynamometer is qualified in feedback detection, the electromagnetic valve assembly controls the blanking cylinder to drive the blanking plate to move so that the terminal enters a qualified product collecting area along the terminal chute, and when the dynamometer is unqualified in feedback detection, the electromagnetic valve assembly controls the blanking cylinder to drive the blanking plate to move so that the terminal falls into a defective product collecting area along the terminal chute.

In order to achieve the second object, the invention adopts the following technical scheme:

a process method of a full-automatic assembling machine for a high-voltage large-current connector terminal comprises the following steps:

(1) manually storing the materials into the vibration feeding device, placing the reed into the first vibration disc, and placing the copper sleeve into the second vibration disc;

(2) the first vibration disc automatically and sequentially sends the reeds to the reed loading device, and the second vibration disc automatically and sequentially sends the copper sleeves to the terminal assembling device;

(3) the station indexing device judges whether mechanisms of the reed feeding device, the torsion spring device, the patting and aligning device and the terminal assembling device are all reset or not, and if all the mechanisms are reset, a station is rotated according to indexing values;

(4) the reed feeding device feeds the reed to the station indexing device, and the reed feeding device comprises the following specific steps:

(4-1) judging whether the chute is provided with a feeding position, if so, waiting, and if so, selecting materials to limit that only one reed is fed each time;

(4-2) carrying out V-shaped positioning and clamping on the reed;

(4-3) judging whether the station indexing device is in place, waiting if the clamp is not aligned, and pushing the reed into the clamp if the clamp is in place according to the alignment criterion;

(4-4) resetting the mechanism, and repeating the steps (4-1) to (4-4);

(5) the clapping device claps the reeds in the clamp of the station indexing device;

(6) the torsion spring device performs a torsion spring process on the reed in the clamp, and the torsion spring device comprises the following specific steps:

(6-1) judging whether the station indexing device is in place, waiting if the clamps are not aligned, and if the clamps are aligned in place, driving the two-way screw rod assembly to drive the clamping cylinders on two sides to move towards the middle of the clamps and simultaneously position the inner circles and the end faces of two ends of the reed by the second speed-reducing servo motor, and simultaneously clamping the outer circles of two ends of the reed;

(6-2) the first speed-reducing servo motor drives the first clamping cylinder to rotate at a set angle to drive the front end of the reed to twist;

(6-3) the first clamping cylinder loosens the reed outer claw, and the second speed-reducing servo motor drives the bidirectional screw rod assembly to drive the clamping cylinders on the two sides to simultaneously keep away from the clamp at a set distance;

(6-4) the second clamping cylinder loosens the reed outer claw, and then the reed deflector rod extends out to block the end face of the torsion spring;

(6-5) the second speed-reducing servo motor drives the bidirectional screw rod assembly to drive the clamping cylinders on the two sides to simultaneously get away from the clamp and return to the initial position;

(6-6) resetting the mechanism, and repeating the steps (6-1) to (6-6);

(7) the beating and aligning device beats and aligns the torsion springs in the clamp of the station indexing device;

(8) the terminal assembling device assembles the torsion spring to the copper sleeve to form the terminal, and the terminal assembling device comprises the following specific steps:

(8-1) judging whether the copper sleeve sliding chute is in a feeding position, if so, waiting, and if so, selecting materials to limit that only one copper sleeve is fed each time;

(8-2) carrying out V-shaped positioning and re-clamping on the copper sleeve;

(8-3) judging whether the station indexing device is in place, waiting if the clamps are not aligned, and pushing the torsion spring into the copper sleeve from the clamps if the clamps are in place and aligned;

(8-4) withdrawing the torsion spring push rod, the copper sleeve push rod and the copper sleeve pressing plate, and then pushing out the terminal by the first discharging push rod;

(8-5) resetting the mechanism, and repeating the steps (8-1) to (8-5);

(9) the terminal detection device is right the terminal carries out the plug power and detects, the terminal detection device concrete step is:

(9-1) judging whether the terminal sliding grooves have the material positions or not, if so, waiting, and if so, selecting materials to limit that only one terminal is fed in each time;

(9-2) V-positioning the terminal;

(9-3) inserting the force measuring rod into the terminal at a set speed and then pulling out the force measuring rod, and detecting an insertion force and a pulling-out force;

(9-4) the terminal discharging push rod pushes the terminal out;

(9-5) judging whether the insertion and extraction force of the terminal is qualified, if so, placing the terminal into a qualified collection area, and if not, placing the terminal into a defective product collection area;

(9-6) resetting the mechanism, and repeating the steps (9-1) to (9-6);

the control system of the full-automatic assembling machine for the high-voltage large-current connector terminal can automatically repeat the steps (2) to (9), the steps (4) to (9) are processed in parallel, and the detection result of the step (9) is subjected to statistical analysis to provide an adjusting basis for the torsion spring angle in the step (6).

Compared with the prior art, the invention has the following advantages and beneficial effects:

the full automation of the processes of feeding, material transferring, torsion spring, assembling, insertion and extraction force detection, screening and blanking and the like can be realized, the production cycle time is reduced, the oxidation blackening caused by the fact that the red copper material terminal is contacted with air impurities for a long time is avoided, and the excellent electric connection performance is ensured; the inner circle and the end face positioning and the outer circle clamping are simultaneously carried out on the two ends of the reed by adopting a precision mechanism, so that the problem of overlapping and dislocation at the opening of the torsion spring is effectively solved; the deformation of the torsion spring can be quantified, the insertion and extraction force performance can be stably controlled, the quality detection is full-automatic, manual participation is avoided, the detection result data are prevented from being interfered, and quantitative statistical analysis and tracing can be carried out on the detection data; the equipment has reasonable and compact structural design, occupies less space, obviously improves the production efficiency and the production quality, is beneficial to large-scale industrial production, and has good practical application value.

Drawings

FIG. 1 is a schematic view of the assembled product of the present invention;

FIG. 2 is a schematic structural diagram of a full-automatic assembling machine for a high-voltage large-current connector terminal according to the present invention;

FIG. 3 is a schematic view of the station indexing apparatus of the present invention;

FIG. 4 is a schematic view of the reed pushing mechanism of the present invention;

FIG. 5 is a schematic view of the spring loading device of the present invention;

FIG. 6 is a schematic view of the torsion spring mechanism of the present invention;

FIG. 7 is a schematic view of the torsion spring assembly of the present invention;

fig. 8 is a schematic view of a terminal assembly mechanism of the present invention;

fig. 9 is a schematic view of the structure of the terminal fitting apparatus of the present invention;

FIG. 10 is a schematic view of the construction of the patting device of the present invention;

FIG. 11 is a schematic view of the structure of the terminal detecting device of the present invention;

the reference numbers illustrate: 101-reed, 102-torsion spring, 103-copper sleeve, 104-terminal; 2-a rack table, 3-a station indexing device, 4-a reed feeding device, 5-a torsion spring device, 6-a terminal assembling device, 7-a patting device, 8-a terminal detecting device and 9-a vibration feeding device;

301-index plate, 302-clamp, 303-divider, 304-gear motor, 305-synchronous belt component, 306-mounting seat; 40-a reed pushing mechanism, 41-a reed chute and 42-a sorting mechanism; 401-a first V-shaped positioning block, 402-a second inverted V-shaped positioning block, 403-a guide column, 404-a first guide block, 405-a second guide block, 406-a first material pressing air cylinder, 407-a first push rod, 408-a first push rod air cylinder and 409-a mounting seat; 421-a first stop block, 422-a first material blocking cylinder, 423-a second stop block, 424-a second material blocking cylinder;

50-torsion spring mechanism, 51-torsion spring driving mechanism, 501-first inner positioning block, 502-second inner positioning block, 503-reed outer claw, 504-first clamping cylinder, 505-second clamping cylinder, 506-second cylinder mounting seat, 507-first speed reduction servo motor, 508-first motor mounting seat, 511-bidirectional screw component, 512-second speed reduction servo motor, 513-torsion spring guide rail component, 514-torsion spring mounting seat, 515-reed deflector rod, 516-deflector rod cylinder and 517-deflector rod guide rail;

60-copper sleeve sliding groove, 61-terminal assembling mechanism, 611-third V-shaped positioning block, 612-third guiding block, 613-fourth guiding block, 614-torsion spring push rod, 615-torsion spring push rod cylinder, 616-copper sleeve push rod, 617-copper sleeve push rod cylinder, 618-push rod guide rail, 619-copper sleeve press plate, 620-copper sleeve press plate cylinder, 621-assembling mounting seat, 622-first discharging push rod and 623-discharging cylinder; 701-beating an aligning plate, 702-beating an aligning cylinder;

80-terminal detection mechanism, 81-terminal chute and 82-terminal blanking mechanism; 801-a fourth V-shaped positioning block, 802-a force measuring rod guide block, 803-a terminal pressing plate, 804-a material pressing cylinder, 805-a force measuring rod, 806-a dynamometer, 807-a force measuring guide rail, 808-a screw rod motor, 809-a force measuring base, 810-a terminal discharging push rod and 811-a terminal discharging cylinder; 821-blanking plate and 822-blanking cylinder; 901-first vibratory pan, 902-vibratory pan mount one, 903-second vibratory pan, 904-vibratory pan mount two, 905-qualified product collecting pan, 906-defective product collecting pan.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.

Examples

As shown in fig. 1 and fig. 2, the full-automatic assembling machine for a high-voltage large-current connector terminal according to the present embodiment is configured to fully automatically twist a spring plate 101 to form a torsion spring 102, and assemble the torsion spring 102 and a copper sleeve 103 to form a connector terminal 104, and includes a machine frame 2, a station indexing device 3, a spring plate feeding device 4, a torsion spring device 5, a terminal assembling device 6, a beating and aligning device 7, a terminal detecting device 8, and a vibration feeding device 9. Through the kludge of this embodiment, can realize automatic feeding, material automatic transfer, automatic torsional spring, automatic assembly, automated inspection plug power and screening blanking, realize connector terminal full automatization assembly production, show improvement production efficiency.

As shown in fig. 2 and 3, the station indexing device 3 is mounted on the frame 2, eight clamps 302 are equally arranged on the outer circumference of an indexing disc 301 of the station indexing device 3, the spring plate feeding device 4, the torsion spring device 5, the aligning device 7, the terminal assembling device 6 and the clamps 302 are arranged on the frame 2 in a one-to-one correspondence manner, and the indexing disc 301 is driven by a speed reduction motor 304, a synchronous belt assembly 305 and a divider 303 to move relative to the frame 2, so as to drive the clamps 302 to sequentially pass through the spring plate feeding device 4, the torsion spring device 5, the aligning device 7 and the terminal assembling device 6.

As shown in fig. 4 and 5, the reed feeding device 4 includes a reed chute 41, a material selecting mechanism 42, a reed pushing mechanism 40, and a solenoid valve assembly (not shown), the reed chute 41 is abutted to the first vibration plate 901, the reed chute 41 is provided with an inner width slightly larger than the length of the reed 101 and an inner height slightly larger than the outer diameter of the reed 101, so as to limit the direction or path in which the reed 101 rolls or slides forward along the groove and cannot jump.

The material selecting mechanism 42 mainly comprises a first stop block 421, a first material blocking cylinder 422, a second stop block 423, a second material blocking cylinder 424 and a sensor (not shown), wherein the first material blocking cylinder 422 drives the first stop block 421 to move, the second material blocking cylinder 424 drives the second stop block 423 to move, the first stop block 421 and the second stop block 423 are arranged on the reed chute 41, and the distance between the first stop block 421 and the second stop block 423 is adjusted to be equal to a set outer diameter; when the sensor detects that the material is short, the solenoid valve assembly controls the second material blocking cylinder 424 to drive the second block 423 to extend to block the material from passing through, then controls the first material blocking cylinder 422 to drive the first block 421 to exit from the waiting material to pass through, when the sensor detects that the material is full, the solenoid valve assembly controls the first material blocking cylinder 422 to drive the first block 421 to extend to block the material from passing through, and then controls the second material blocking cylinder 424 to drive the second block 423 to exit from the waiting material to pass through, so that only one reed 101 is limited to enter the reed pushing mechanism 40.

The reed pushing mechanism 40 mainly includes a first V-shaped positioning block 401, a second inverted V-shaped positioning block 402, a guiding column 403, a first guiding block 404, a second guiding block 405, a first material pressing cylinder 406, a first push rod 407, a first push rod cylinder 408 and a mounting seat 409, the first V-shaped positioning block 401 is mounted on the mounting seat 409, the first guiding block 404 is disposed on the front end surface of the first V-shaped positioning block 401, the first guiding block 404 is provided with a guiding inner hole for guiding the reed 101, the second guiding block 405 is disposed on the rear end surface of the first V-shaped positioning block 401, the second guiding block 405 is provided with a guiding inner hole for guiding the first push rod 407, the first material pressing cylinder 406 drives the second inverted V-shaped positioning block 402 to move along the guiding column 403 to cooperate with the first V-shaped positioning block 401 to form a square inner hole for performing outer circle positioning and clamping on the reed 101, when the guide inner hole of the first guide block 404 is aligned with the inner hole of the fixture 302 on the station indexing device 3, the first push rod cylinder 408 drives the first push rod 407 to push the spring plate 101 through the guide inner hole of the first guide block 404 into the inner hole of the fixture 302 via the guide inner hole of the second guide block 405.

As shown in fig. 6 and 7, the torsion spring device 5 includes a torsion spring mechanism 50, and the torsion spring mechanism 50 includes a first inner positioning block 501, a second inner positioning block 502, a spring outer claw 503, a first clamping cylinder 504, a second clamping cylinder 505, a second cylinder mounting seat 506, a first deceleration servo motor 507, and a first motor mounting seat 508; the first inner positioning block 501 is provided with a flange structure, the center of the front end face of the flange is provided with a short shaft structure, the short shaft is provided with a guiding conical surface, and the front end face of the short shaft is provided with a positioning hole; the second inner positioning block 502 is provided with a flange structure, the center of the front end face of the flange is provided with a short shaft structure, the short shaft structure is provided with a guide conical surface, the front end face of the short shaft structure is provided with a positioning pin, and the front end face of the flange of the second inner positioning block 502 is also provided with a groove; the first inner positioning block 501 can perform inner circle and end face positioning on the front end of the reed 101, the second inner positioning block 502 can perform inner circle and end face positioning on the rear end of the reed 101, and the positioning hole of the first inner positioning block 501 can be matched with the positioning pin of the second inner positioning block 502 to perform concentric positioning; the front end of the reed outer claw 503 is provided with an arc groove, and the combination of the arc grooves of the three reed outer claws 503 can position and clamp the excircle of one end of the reed 101; the flange of the first inner positioning block 501 can be arranged in the center of a first clamping cylinder 504, the first clamping cylinder 504 is provided with three reed outer claws 503, the flange of the second inner positioning block 502 can be arranged in the center of a second clamping cylinder 505, the second clamping cylinder 505 is provided with three reed outer claws 503, the second clamping cylinder 505 is arranged in the second cylinder mounting seat 506, and the first clamping cylinder 504 and the second clamping cylinder 505 can drive the reed outer claws 503 to position and clamp two ends of the reed 101 at the same time; first speed reduction servo motor 507 install in first motor mount pad 508, first speed reduction servo motor 507 can drive with the set angle first die clamping cylinder 504 rotates, and drives the reed 101 front end twists reverse, and then realizes the grid region of reed 101 twists reverse and contract inwards to its center and be the hyperboloid deformation and make torsional spring 102.

Further, as shown in fig. 6 and 7, the torsion spring device 5 further includes a torsion spring driving mechanism 51 and an electromagnetic valve assembly (not shown), where the torsion spring driving mechanism 51 includes a bidirectional screw assembly 511, a second deceleration servo motor 512, a torsion spring guide rail assembly 513, a torsion spring mounting seat 514, a reed deflector rod 515, a deflector rod cylinder 516, a deflector rod guide rail 517, and a photoelectric sensor (not shown);

the first motor mount 508 is disposed at a front end of the torsion spring guide rail assembly 513, the second cylinder mount 506 is disposed at a rear end of the torsion spring guide rail assembly 513, the torsion spring mounting seat 514 is provided with the torsion spring guide rail assembly 513, the bidirectional screw assembly 511 and the second servo-reduction motor 512, the second servo motor 512 can drive the bidirectional screw assembly 511 to drive the first motor mounting seat 508 and the second cylinder mounting seat 506 to move along the torsion spring guide rail assembly 511 in the same direction or in opposite directions, so that the first inner locating block 501 and the second inner locating block 502 can simultaneously approach or depart from the reed 101, the photoelectric sensor detects the distances between the first inner positioning block 501, the second inner positioning block 502 and the end faces of the reeds 101, and feeds back the distances to the second speed-reducing servo motor 512 for position positioning; the reed shifting lever 515 is arranged in a groove on the front end face of the flange of the second inner positioning block 502, the solenoid valve assembly controls the shifting lever cylinder 516 to drive the reed shifting lever 515 to move along a shifting lever guide rail 517, and the reed shifting lever 515 can block the torsion spring 102 from moving along with the second inner positioning block 502, so that the torsion spring 102 is kept clamped in the clamp 302.

As shown in fig. 8 and 9, the terminal assembling device 6 includes a copper bush sliding groove 60, a terminal assembling mechanism 61, and an electromagnetic valve assembly (not shown), where the terminal assembling mechanism 61 mainly includes a third V-shaped positioning block 611, a third guide block 612, a fourth guide block 613, a torsion spring push rod 614, a torsion spring push rod cylinder 615, a copper bush push rod 616, a copper bush push rod cylinder 617, a push rod guide rail 618, a copper bush pressing plate 619, a copper bush pressing plate cylinder 620, an assembling mounting seat 621, a first discharging push rod 622, and a discharging cylinder 623.

The third V-shaped positioning block 611 is mounted on the mounting seat 621, the third V-shaped positioning block 611 is provided with a V-shaped surface capable of positioning the outer circle of the copper sleeve 103, the third guide block 612 is disposed on the front end surface of the third V-shaped positioning block 611, the third guide block 612 is provided with a guide inner hole for guiding the torsion spring 102, the fourth guide block 613 is disposed on the rear end surface of the third V-shaped positioning block 611, the fourth guide block 613 is provided with a guide inner hole for guiding the copper bush pushing rod 616, the torsion spring push rod 614 is provided with a seam allowance for carrying out inner circle and end face positioning on the torsion spring 102, the front end of the torsion spring push rod 614 is also provided with a positioning hole, the copper bush push rod 616 is provided with a spigot capable of positioning the inner circle and the end face of the copper bush 103, the front end of the copper sleeve push rod 616 is also provided with a positioning column, and the positioning hole of the torsion spring push rod 614 can be matched with the positioning column of the copper sleeve push rod 616 for concentric positioning;

the copper sleeve sliding groove 60 is butted with the second vibrating disk 903, and the copper sleeve sliding groove 60 is provided with an inner groove width which is slightly larger than the length of the copper sleeve 103 and an inner groove height which is slightly larger than the outer diameter of the copper sleeve 103 so as to limit the copper sleeve 103 to roll or slide forwards along the inner groove and cannot jump to the direction or the path; the copper bush chute 60 is further provided with the material selecting mechanism 42, so that only one copper bush 103 enters the terminal assembling mechanism 61 for positioning and clamping.

The electromagnetic valve assembly can control the copper sleeve push rod cylinder 617 to drive the copper sleeve push rod 616 to push the copper sleeve 103 to a set position of the third V-shaped positioning block 611 along the push rod guide rail 618 for positioning, control the copper sleeve pressing plate cylinder 620 to drive the copper sleeve pressing plate 619 to move so as to clamp the copper sleeve 103 on the V-shaped surface of the third V-shaped positioning block 611, control the torsion spring push rod cylinder 615 to drive the torsion spring push rod 614 to assemble the torsion spring 102 in the clamp 302 into the copper sleeve 103 through a guide inner hole of the third guide block 612 along the push rod guide rail 618 to form the terminal 104; the third V-shaped positioning block 611 is further provided with a guiding hole, and when the copper sleeve push rod 616 and the torsion spring push rod 614 have exited from the third V-shaped positioning block 611, the electromagnetic valve assembly controls the discharging cylinder 623 to drive the first discharging push rod 622 to push out the terminal 104 along the guiding hole of the third V-shaped positioning block 611.

As shown in fig. 10, the clapping device 7 includes a clapping plate 701 and a clapping cylinder 702, the two clapping plates 701 are driven by the double-cylinder axis of the clapping cylinder 702 to move, and the clapping device 7 is symmetrically disposed on both sides of the clamp 302 to clap the reed 101 centered on the clamp 302.

Vibration material feeding unit 9 mainly includes first vibration dish 901, second vibration dish 903, first vibration dish 901 is installed in vibration dish mounting bracket 902, second vibration dish 903 is installed in vibration dish mounting bracket two 904, first vibration dish 901 will reed 101 continuous vibration so that its roll pay-off arrives reed piece loading attachment 4, second vibration dish 903 will copper sheathing 103 continuous vibration so that its roll pay-off arrives terminal assembly device 6, terminal assembly device 6 will assemble the completion terminal 104 roll ejection of compact under the action of gravity to terminal detection device 8.

The anchor clamps 302 have been seted up the hole and can have held reed 101, the internal diameter of the hole of anchor clamps 302 slightly is less than the external diameter of reed 101, anchor clamps 302 can be right reed 101 carries out excircle location and centre gripping, the both ends of the hole of anchor clamps 302 are equipped with interior chamfer will the leading-in hole of reed 101, the length of the hole of anchor clamps 302 is less than the length of reed 101 to make its centre gripping reed 101 and expose reed 101 both ends.

As shown in fig. 11, the terminal detection device 8 mainly includes a terminal chute 81, a terminal detection mechanism 80, a terminal blanking mechanism 82, and a solenoid valve assembly (not shown), where the terminal detection mechanism 80 mainly includes a fourth V-shaped positioning block 801, a force measuring bar guide block 802, a terminal pressure plate 803, a material pressing cylinder 804, a force measuring bar 805, a force gauge 806, a force measuring guide rail 807, a screw motor 808, a force measuring base 809, a terminal discharging push rod 810, a terminal discharging cylinder 811, and a position sensor (not shown).

The fourth V-shaped positioning block 801 is mounted on the force measuring base 809, the fourth V-shaped positioning block 801 is provided with a V-shaped surface capable of positioning the outer circle of the terminal 104, the force measuring bar guide block 802 is disposed on the front end surface and the rear end surface of the fourth V-shaped positioning block 801, the force measuring bar guide block 802 is provided with a guide inner hole for guiding the force measuring bar 805, the hole diameter of the guide inner hole of the force measuring bar guide block 802 is smaller than the outer diameter of the terminal 104 and larger than the outer diameter of the force measuring bar 805 so as to limit the terminal 104 in the fourth V-shaped positioning block 801 and the force measuring bar 805 can be inserted into the terminal 104, the swaging air cylinder 804 drives the terminal pressing plate 803 to move so as to limit the terminal 104 in the fourth V-shaped positioning block 801 and can be finely tuned and floated, the force measuring bar 805 is mounted on the front end of the force measuring bar 806, the lead screw 808 can be provided with an adjustable speed to drive the force measuring bar 805 to move along the force measuring, to drive the force measuring bar 805 to insert and withdraw from the terminal 104 and to detect the insertion force and withdrawal force thereof; the fourth V-shaped positioning block 801 is further provided with a guide hole, and when the position sensor detects that the force measuring bar 805 has exited from the terminal 104, the solenoid valve assembly controls the terminal discharging cylinder 811 to drive the terminal discharging push rod 810 to push out the terminal 104 along the guide hole of the fourth V-shaped positioning block 801;

the terminal sliding groove 81 is butted with the copper sleeve sliding groove 60, the terminal sliding groove 81 is provided with an inner groove width which is slightly larger than the length of the terminal 104 and an inner groove height which is slightly larger than the outer diameter of the terminal 104, so that the terminal 104 is limited to roll or slide forwards along the inner groove and cannot jump to the direction or the path; the terminal chute 81 is further provided with the material selecting mechanism 42, so that only one piece of the terminal 104 enters the terminal detecting mechanism 80 for positioning and detecting.

The terminal blanking mechanism 82 includes a blanking plate 821 and a blanking cylinder 822, when the feedback detection of the load cell 806 is qualified, the solenoid valve assembly controls the blanking cylinder 822 to drive the blanking plate 821 to move so that the terminal 104 enters the qualified product collecting tray 905 along the terminal chute 81, and when the feedback detection of the load cell 806 is unqualified, the solenoid valve assembly controls the blanking cylinder 822 to drive the blanking plate 821 to move so that the terminal 104 falls into the unqualified product collecting tray 906 along the terminal chute 81.

The embodiment also provides a process method of the full-automatic assembling machine for the high-voltage large-current connector terminal, which realizes automatic assembling according to the following method and steps:

(4-2) carrying out V-shaped positioning and clamping on the reed;

(4-4) resetting the mechanism, and repeating the steps (4-1) to (4-4);

(6-6) resetting the mechanism, and repeating the steps (6-1) to (6-6);

(8-2) carrying out V-shaped positioning and re-clamping on the copper sleeve;

(8-5) resetting the mechanism, and repeating the steps (8-1) to (8-5);

(9-2) V-positioning the terminal;

(9-4) the terminal discharging push rod pushes the terminal out;

(9-6) resetting the mechanism, and repeating the steps (9-1) to (9-6);

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a full-automatic kludge of high-pressure heavy current connector terminal for twist reverse the reed and form the torsional spring and assemble into the connector terminal with the copper sheathing full-automatically, its characterized in that: the device comprises a rack table, a station indexing device, a reed feeding device, a torsion spring device, a beating and aligning device, a terminal assembling device, a terminal detecting device and a vibration feeding device; the station indexing device is arranged on the stand platform, and a plurality of clamps are arranged on the station indexing device; the plurality of clamps correspond to the spring piece feeding device, the torsion spring device, the patting device and the terminal assembling device which are arranged on the rack table one by one; when the motor drives the station indexing device to move relative to the rack table, the clamp is driven to sequentially pass through the reed loading device, the torsion spring device, the patting device and the terminal assembling device;

2. The full-automatic assembling machine for the high-voltage large-current connector terminal according to claim 1, characterized in that: the station indexing device is of a disc-shaped structure and is arranged on the rack platform, and a plurality of clamps are uniformly arranged on the outer circumference of the station indexing device; the hole can the holding have been seted up to anchor clamps the reed, the internal diameter of the hole of anchor clamps is slightly less than the external diameter of reed, anchor clamps can be right the reed carries out excircle location and centre gripping, the both ends of the hole of anchor clamps are equipped with interior chamfer will the leading-in hole of reed, the length of the hole of anchor clamps is less than the length of reed to make it centre gripping the reed can expose the reed both ends.

3. The full-automatic assembling machine for the high-voltage large-current connector terminal according to claim 1, characterized in that: the reed feeding device comprises a reed sliding groove, a material selecting mechanism, a reed pushing mechanism and an electromagnetic valve assembly, the reed sliding groove is in butt joint with the first vibrating disc, the width of the reed sliding groove is slightly larger than the length of the reed, and the height of the reed sliding groove is slightly larger than the outer diameter of the reed, so that the reed is limited to roll or slide forwards along the groove and cannot jump to the direction or the path;

4. The full-automatic assembling machine for the high-voltage large-current connector terminal according to claim 3, characterized in that: the reed pushing mechanism comprises a first V-shaped positioning block, a second inverted V-shaped positioning block, a guide post, a first guide block, a second guide block, a first material pressing cylinder, a first push rod cylinder and a mounting seat, wherein the first V-shaped positioning block is mounted on the mounting seat, the first guide block is arranged on the front end face of the first V-shaped positioning block, the first guide block is provided with a guide inner hole for guiding the reed, the second guide block is arranged on the rear end face of the first V-shaped positioning block, the second guide block is provided with a guide inner hole for guiding the first push rod, the first material pressing cylinder drives the second inverted V-shaped positioning block to move along the guide post to be matched with the first V-shaped positioning block to form a square inner hole for carrying out excircle positioning and clamping on the reed, when the guide inner hole of the first guide block is aligned with the inner hole of the clamp on the station indexing device, and the first push rod cylinder drives the first push rod to push the reed to enter the inner hole of the clamp through the guide inner hole of the first guide block through the guide inner hole of the second guide block.

5. The full-automatic assembling machine for the high-voltage large-current connector terminal according to claim 1, characterized in that: the torsion spring device also comprises a torsion spring driving mechanism and an electromagnetic valve assembly, wherein the torsion spring driving mechanism comprises a bidirectional screw rod assembly, a second speed-reducing servo motor, a torsion spring guide rail assembly, a torsion spring mounting seat, a reed deflector rod, a deflector rod cylinder, a deflector rod guide rail and a photoelectric sensor;

6. The full-automatic assembling machine for the high-voltage large-current connector terminal according to claim 1, characterized in that: the terminal assembling device comprises a copper sleeve sliding groove, a terminal assembling mechanism and an electromagnetic valve assembly, wherein the terminal assembling mechanism comprises a third V-shaped positioning block, a third guide block, a fourth guide block, a torsion spring push rod cylinder, a copper sleeve push rod cylinder, a push rod guide rail, a copper sleeve pressing plate cylinder, an assembling mounting seat, a first discharging push rod and a discharging cylinder;

7. The full-automatic assembling machine for the high-voltage large-current connector terminal according to claim 6, is characterized in that: the electromagnetic valve assembly can control the copper sleeve push rod cylinder to drive the copper sleeve push rod to push the copper sleeve to a set position of the third V-shaped positioning block along the push rod guide rail for positioning, the electromagnetic valve assembly controls the copper sleeve pressing plate cylinder to drive the copper sleeve pressing plate to move so as to clamp the copper sleeve on the V-shaped surface of the third V-shaped positioning block, and the electromagnetic valve assembly controls the torsion spring push rod cylinder to drive the torsion spring push rod to assemble the torsion spring in the clamp to the copper sleeve through a guide inner hole of the third guide block along the push rod guide rail so as to form the terminal; and the third V-shaped positioning block is also provided with a guide hole, when the copper sleeve push rod and the torsion spring push rod are withdrawn from the third V-shaped positioning block, the electromagnetic valve assembly controls the discharging cylinder to drive the first discharging push rod to push the terminal out along the guide hole of the third V-shaped positioning block.

8. The full-automatic assembling machine for the high-voltage large-current connector terminal according to claim 1, characterized in that: the terminal detection device comprises a terminal chute, a terminal detection mechanism, a terminal blanking mechanism and a solenoid valve assembly, wherein the terminal detection mechanism comprises a fourth V-shaped positioning block, a force measuring rod guide block, a terminal pressing plate, a pressing cylinder, a force measuring rod, a dynamometer, a force measuring guide rail, a lead screw motor, a force measuring base, a terminal discharging push rod, a terminal discharging cylinder and a position sensor;

9. The full-automatic assembling machine for the high-voltage large-current connector terminal according to claim 8, wherein: the terminal blanking mechanism comprises a blanking plate and a blanking cylinder, when the dynamometer is qualified in feedback detection, the electromagnetic valve assembly controls the blanking cylinder to drive the blanking plate to move so that the terminals enter qualified product collecting areas along the terminal sliding grooves, and when the dynamometer is unqualified in feedback detection, the electromagnetic valve assembly controls the blanking cylinder to drive the blanking plate to move so that the terminals fall into unqualified product collecting areas along the terminal sliding grooves.

10. The process method of the full-automatic assembling machine for the high-voltage high-current connector terminal according to any one of claims 1 to 9, characterized by comprising the following steps:

(4-2) carrying out V-shaped positioning and clamping on the reed;

(4-4) resetting the mechanism, and repeating the steps (4-1) to (4-4);

(6-6) resetting the mechanism, and repeating the steps (6-1) to (6-6);

(8-2) carrying out V-shaped positioning and re-clamping on the copper sleeve;

(8-5) resetting the mechanism, and repeating the steps (8-1) to (8-5);

(9-2) V-positioning the terminal;

(9-4) the terminal discharging push rod pushes the terminal out;

(9-6) resetting the mechanism, and repeating the steps (9-1) to (9-6);