CN113894535A

CN113894535A - Thermistor temperature sensor general assembly equipment and assembly method thereof

Info

Publication number: CN113894535A
Application number: CN202010571505.9A
Authority: CN
Inventors: 李绍泉
Original assignee: Suzhou Zhuojin Communications Co ltd
Current assignee: Suzhou Zhuojin Communications Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2022-01-07

Abstract

The invention discloses a thermistor temperature sensor general assembly device and an assembly method thereof, wherein the device comprises a welding device, a front assembly coding device, a rear assembly detection device and a plurality of linear moving modules; welding equipment includes the transmission band device of multistage concatenation, locate the carrier subassembly on the transmission band device, locate the removal welding set of carrier subassembly top, preceding equipment is beaten the sign indicating number equipment and is included according to the preface and locate preceding graduated disk circumference's inner seal circle assembly device, iron casing point mucilage binding is put, be used for riveting the iron casing riveting device of pressing iron casing and injection moulding shell shaping, back equipment check out test set is including locating the outer seal circle assembly device of back graduated disk circumference according to the preface, a pressure-proof test device for detecting temperature sensor's dielectric strength performance, and be used for detecting temperature sensor's outside sealing performance's gas tightness detection device. The invention realizes the automatic and efficient assembly of the temperature sensor.

Description

Thermistor temperature sensor general assembly equipment and assembly method thereof

Technical Field

The invention belongs to the technical field of temperature sensor assembly, and particularly relates to general assembly equipment and an assembly method for a thermistor temperature sensor.

Background

The temperature sensor of the automobile engine is used for converting the temperature change condition of gas or liquid into an electric signal and providing the electric signal to the ECU, and the ECU receives the temperature signal and then performs temperature control operation. The existing temperature sensor has a complex structure, the assembly process involves complex stations, an automatic assembly line cannot be formed, and the assembly efficiency is low; the problem that the assembly of the inner terminal of the temperature sensor and the thermistor has deviation, and the installation position of the thermistor cannot be ensured easily occurs; due to the elasticity of the sealing ring, the problem of easy ejection and falling off in the assembling process can cause neglected loading; when the iron shell and the injection molding part are assembled, the thread screwing is usually adopted, and the thermistor is easy to deform in the screwing process to cause short circuit; after the temperature sensor is assembled, resistance test, pressure resistance test and air tightness test of the iron shell in place are required, a series of flow detection is lacked in the existing assembly process, and the quality of the temperature sensor cannot be guaranteed.

Disclosure of Invention

The invention aims to solve the technical problems and provides a thermistor temperature sensor general assembly device and an assembly method thereof, so that automatic and efficient assembly of a temperature sensor is realized. In order to achieve the purpose, the technical scheme of the invention is as follows:

the general assembling equipment of the thermistor temperature sensor comprises welding equipment, front assembly coding equipment, rear assembly detection equipment and a plurality of linear moving modules for transferring parts; the welding equipment comprises a multi-section spliced transmission belt device, a carrier assembly, a movable welding device, an iron shell glue dispensing device, an iron shell riveting device and an air tightness detection device, wherein the carrier assembly is arranged on the transmission belt device and used for bearing products to be welded, the movable welding device is arranged above the carrier assembly and used for welding a thermistor and an injection shell terminal, the front assembly code printing equipment comprises an inner sealing ring assembling device, an iron shell glue dispensing device and an iron shell riveting device, the inner sealing ring assembling device is sequentially arranged in the circumferential direction of a front dividing plate and used for being sleeved with an upper sealing ring of an injection shell, the iron shell glue dispensing device is used for dispensing glue in the iron shell, the iron shell riveting device is used for riveting the iron shell and forming the injection shell, and the rear assembly detection equipment comprises an outer sealing ring assembling device, a pressure resistance test device and an air tightness detection device, the outer sealing performance of the temperature sensor is sequentially arranged in the circumferential direction of a rear dividing plate and used for being sleeved with the upper sealing ring of the iron shell.

Specifically, the thermistor temperature sensor general assembly equipment further comprises temperature point testing and cleaning equipment arranged behind the front assembly coding equipment; the temperature point testing and cleaning equipment comprises a plurality of segmented temperature resistance testing devices used for detecting the resistance of the temperature sensor and a cleaning and air blowing device used for cleaning and drying the temperature sensor.

Specifically, the mobile welding device comprises a welding head and a CCD camera module arranged on the side edge of the welding head.

Specifically, the inner seal ring assembling device comprises a chuck structure used for temporarily storing the seal ring and an anti-falling joint assembly used for propping open the inner seal ring of the chuck structure and transferring the inner seal ring.

Specifically, iron casing adhesive deposite device is including the storage structure that is used for holding iron casing and the adhesive deposite structure of lift removal counterpoint iron casing, and the glue is in some adhesive deposite structures interior glue point income iron casing's butt joint portion.

Specifically, a laser coding device and a product code scanning and blanking device are further arranged behind the iron shell riveting device.

The assembling method of the thermistor temperature sensor general assembling equipment comprises the following steps:

1) positioning an injection molding shell in the carrier assembly, manually placing a thermistor to be in butt joint with a terminal in the injection molding shell, matching a welding moving device, and welding the thermistor and the terminal in the injection molding shell by a welding head to form a welded semi-finished product;

2) the linear moving module puts the welding semi-finished product into a front dividing disc for circulation;

3) the inner sealing ring assembling device sleeves the sealing ring into one end of the exposed terminal on the injection molding shell;

4) the iron shell glue dispensing device is used for dispensing glue in the butt joint part of the iron shell;

5) the iron shell is inserted into the end part of the injection molding shell with the sealing ring, and the iron shell riveting device rivets the iron shell and the welding semi-finished product in place to form a riveting semi-finished product;

6) a code printing machine in the laser code printing device prints codes on the riveting semi-finished products and performs blanking;

7) carrying out resistance test, ultrasonic cleaning and air-blowing drying treatment on the riveting semi-finished product by using temperature point test and cleaning equipment;

8) the linear moving module puts the riveting semi-finished product into a rear dividing plate for circulation;

9) the outer sealing ring assembling device is used for sleeving the sealing ring on the iron shell;

10) the retainer ring assembling device inserts the retainer ring sleeve into the iron shell and shifts the seal ring to complete the assembly of the temperature sensor;

11) the pressure-resistant testing device carries out pressure-resistant testing on the temperature sensor;

12) the air tightness detection device detects the external sealing performance of the temperature sensor;

13) and (5) blanking and packaging the finished product.

Specifically, in step 7), during resistance testing, the parts of the iron shell are immersed in constant temperature oil grooves with different temperatures, and resistance detection is carried out on the terminals in the injection molding shell through the PIN, so that resistance data of the temperature sensors under different temperature conditions are obtained.

Specifically, in step 11), in the pressure resistance test, the injection molding shell and the sealing ring positioned outside the injection molding shell are butted with a probe, and a pressure resistance detector detects data.

Specifically, in the step 12), in the air tightness test, the iron shell of the temperature sensor is sealed in the sealed cavity, and data are detected by the air tightness detector through an air source connected into the sealed cavity.

Compared with the prior art, the thermistor temperature sensor general assembly equipment and the assembly method thereof have the beneficial effects that:

the mounting position of the thermistor is ensured by arranging the special carrier assembly to be matched with the mobile welding device, so that the assembling deviation of the terminal in the temperature sensor and the thermistor is avoided; the anti-drop joint assembly is matched with the chuck structure, so that the temperature sensor is ensured to be stably loaded when the inner sealing ring or the outer sealing ring is assembled, and the problem of spring-off is avoided; the iron shell is subjected to dispensing treatment, the traditional screwing mode is avoided, and the assembly is carried out through the riveting technology, so that the integrity of the thermistor arranged in the iron shell is ensured, and the short circuit problem is avoided; the temperature point test and the cleaning equipment are used for carrying out resistance test, and the pressure resistance test and the air tightness test are carried out in the post-assembly detection equipment, so that an automatic circulation process is formed, and the quality of the temperature sensor can be efficiently and accurately detected.

Drawings

FIG. 1 is a schematic view of a temperature sensor according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the thermistor assembled by the injection molding housing in this embodiment;

FIG. 3 is a schematic view of a notch structure of the injection molded housing according to the present embodiment;

FIG. 4 is a schematic structural diagram of the iron shell according to the present embodiment;

FIG. 5 is a schematic structural diagram of a welding apparatus according to the present embodiment;

fig. 6 is a schematic structural diagram of a belt conveyor device in the present embodiment;

FIG. 7 is a schematic structural diagram of a carrier assembly according to the present embodiment;

FIG. 8 is a schematic structural diagram of a front assembly coding device in this embodiment;

fig. 9 is a schematic view of a feeding structure of the front index plate in the present embodiment;

FIG. 10 is a schematic structural view of an inner seal ring assembling apparatus according to the present embodiment;

FIG. 11 is a schematic structural view of the dislocated material distribution tool in this embodiment;

FIG. 12 is a schematic structural view of the chuck structure and the anti-separation joint assembly according to the present embodiment;

FIG. 13 is a schematic view of a structure for ejecting a coupling sleeve of the anti-drop coupling assembly of the present embodiment;

FIG. 14 is a schematic structural view of the anti-separation joint assembly of the present embodiment in cooperation with the gripper c for transferring the inner seal ring;

FIG. 15 is a schematic structural diagram of a product turnover device in this embodiment;

FIG. 16 is a schematic view of an iron case dispensing device according to the present embodiment;

FIG. 17 is an enlarged partial view of FIG. 16 in accordance with the present embodiment;

fig. 18 is a schematic structural view of the iron shell riveting device in this embodiment;

fig. 19 is a schematic structural view of the first pressing member and the second pressing member in this embodiment;

fig. 20 is a partially enlarged schematic structural view of the second pressing member in the present embodiment;

FIG. 21 is a schematic structural view of a semi-finished spinning assembly in this embodiment;

FIG. 22 is a schematic structural diagram of a temperature point testing and cleaning apparatus in this embodiment;

fig. 23 is a schematic structural view of the batch transferring device in the present embodiment;

FIG. 24 is a schematic structural diagram of a resistance testing apparatus according to the present embodiment;

FIG. 25 is a schematic structural view of the cleaning and blowing apparatus of this embodiment;

FIG. 26 is a schematic structural view of a post-assembly inspection apparatus according to the present embodiment;

fig. 27 is a schematic structural view of the feeding and blanking device in the present embodiment;

fig. 28 is a schematic structural view of an outer seal ring assembling device in the present embodiment;

FIG. 29 is a schematic structural view of a retainer ring assembling apparatus according to the present embodiment;

FIG. 30 is a schematic structural diagram of a voltage withstand test apparatus in this embodiment;

FIG. 31 is a schematic view of the structure of the air tightness detecting device in this embodiment;

FIG. 32 is a partial enlarged view showing the structure of the air-tightness detecting device in the present embodiment;

the figures in the drawings represent:

1, a temperature sensor, 11 injection molding casings, 12 terminals, 121 notches, 122 flanges, 13 thermistors, 14 iron casings, 141 bottom columns, 142 butting parts, 15 outer sealing rings, 16 retaining rings, 17 inner sealing rings, 18 extension casings and 181 positioning holes;

2, welding equipment, a21 conveyor belt, a 211 side slide rail, a 212 side moving plate, 213 cylinders a, 214 top plates, 215 cylinders b, 216 press plates, 22 linear moving modules a, 221 welding heads, 222CCD camera modules a, 23 supporting plates, 231 strip-shaped grooves, 232 carrier grooves, 233 welding grooves, 234 accommodating grooves, 235 positioning columns a, 24 cover plates, 241 hole positions, 242 first through holes and 243 second through holes;

3 front assembly code printing equipment, 31 front indexing disc, 311 linear moving module b, 312 gripper b, 313 gripper c, 314CCD camera module b, 315 code printing machine, 316 dust collector, 317 code scanning gun, 32 sliding plate, 321 gripper a, 322 cylinder c, 323 gripper d, 324 cylinder e, 325 servo motor a, 33 base, 331 positioning groove, 332 positioning column b, 34 vibration disc a, 341 dislocation distribution tooling a, 342 chuck structure a, 343 linear moving module c, 35 distribution block, 351 distribution groove, 352 dislocation groove, 353 dislocation block, 354 cylinder 369d, 36 anti-disengagement assembly a, 361 installation block, 362 joint, 363 adapter, 364 avoiding cavity, 365 multi-jaw chuck, 366 guide plate, 367 bulge, 368 round hole, 371 guide groove, 37 vibration disc b, 37 dislocation distribution tooling b, 372 linear moving module d, 373 gripper e, 374 storage table, 375 storage groove, 376 vertical plate, 377 point rubber plate, 378 air cylinders f, 379 linear moving modules e, 38 top pressure plates, 381 moving blocks, 382 clamping hands, 383 air cylinders g, 384 air cylinders h, 385 top pressure tables, 386 connecting plates, 387 inclined sliding grooves, 388 connecting rods, 39 fixing rods, 391 air cylinders j, 392 bottom tables, 393L plates, 394 clamping hands f, 395 rotating shafts, 396 clamping plates, 397 servo motors b and 398 air cylinders k;

4 temperature point testing and cleaning equipment, 41 linear moving modules f, 411 linear moving modules g, 412 clamping hands g, 413 clamping hands h, 42 constant temperature oil grooves, 421 electric testing plates, 422PIN needles, 423 heat insulation plates, 424 smoke exhaust covers, 425 air cylinders l, 43 moving tables, 431 linear moving modules h, 432 hook plates, 433 frames, 434 clamping hands i, 435 preset frames, 44 cleaning tanks, 441 air blowing pipes and 442 connecting pipes;

5, a rear assembly detection device, a 51 rear indexing plate, a 511 clamping seat, a 512 clamping seat, a 513 linear moving module i, a 514 defective box, a 515 clamping hand j, a52 vibration plate c, a 521 dislocation splitting tool c, a 522 chuck structure b, a 523 linear moving module j, a 524 dislocation prevention joint assembly b, a 525 cylinder m, a526 clamping block assembly a, a clamping block 527, a 528 cylinder n, a 53 vibration plate d, a 531 dislocation splitting tool d, a 532 moving frame, a 533 cylinder o, a 534 cylinder p, a 535 cylinder q, a 536 clamping block assembly b, a 54 first fixing plate, a 541 first probe, a 542 second fixing plate, a 543 second probe, a 544 first straight plate, a 545 cylinder r, a 546 second straight plate, a 55 positioning seat, a 551 positioning plate, a 553 sealing cavity, a 552 air inlet, a 554 strip rod, a 555 cylinder t, a 556 cylinder u, a 56 linear moving module k and a 561 clamping hand k.

Detailed Description

The technical solutions in the embodiments of the present invention are described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

Example 1:

referring to fig. 1-4, a specific structure of a temperature sensor 1 to be assembled includes an injection molded housing 11, a terminal 12 integrally injection molded with the injection molded housing 11 at an end thereof, a thermistor 13 welded and fixed to the terminal 12, and an iron housing 14 hermetically sleeved with the end of the injection molded housing 11 and covering the thermistor 13 and the terminal 12.

The iron case 14 includes a hollow bottom pillar 141, and an annular abutting portion 142 provided at the top of the bottom pillar 141.

The outer sealing ring 15 and a retainer ring 16 for retaining the outer sealing ring 15 at the side of the butt joint part 142 are sleeved outside the bottom column 141. The retainer ring 16 is made of plastic material.

An inner sealing ring 17 is sleeved on one end of the injection molding shell 11 exposed out of the terminal 12, glue is filled in the port of the butt joint part 142 and aligned to the inner sealing ring 17, and the injection molding shell 11 is inserted into the butt joint part 142 in a riveting manner.

The end of the injection-molded housing 11 facing away from the iron housing 14 is provided with a notch 121 exposing the terminal 12 inside, and two sides of the notch 121 are provided with flanges 122 for mounting and positioning. The side of the injection-molded housing 11 is provided with an extension housing 18 having a positioning hole 181.

Thermistor temperature sensor assembles equipment altogether, includes welding equipment 2, preceding equipment 3 of beating sign indicating number, temperature point test and cleaning equipment 4 and post assembly check out test set 5.

Referring to fig. 5-7, the welding device 2 includes a plurality of segments of conveyor belts, a carrier assembly disposed on the conveyor belts for carrying the products to be welded, and a movable welding device disposed on the side of the conveyor belts and above the carrier assembly.

The conveying belt device comprises conveying belts 21 which are arranged in parallel relatively, a plurality of jacking assemblies which are arranged between the two conveying belts 21 and used for jacking the carrier assemblies, and a lateral sliding assembly which is arranged at the bottom of one section of conveying belt 21 and used for moving out of the guiding conveying position.

The side sliding assembly comprises a side sliding rail 211 which is arranged opposite to the transmission direction of the transmission belt 21 and is vertical to the transmission direction, and a side moving plate 212 which slides along the side sliding rail 211; a set of conveyor belts 21 are supported on top of the lateral moving plate 212. The side moving plate 212 is connected to a cylinder a213 that drives it to move along the side slide 211.

The jacking assembly comprises a top plate 214 jacked corresponding to the carrier assembly and a cylinder b215 for driving the top plate 214 to lift. The cylinder b215 is mounted on the side moving plate 212 or the welding table. The jacking assembly further comprises pressing plates 216 symmetrically arranged on two sides of the conveyor belt 21, and when the top plate 214 jacks the carrier assembly in place, the pressing plates 216 shift the carrier assembly.

The mobile welding device comprises a linear moving module a22, a welding head 221 which is arranged on the linear moving module a22 and moves along the vertical direction or the horizontal direction, and a CCD camera module a222 which is arranged on the side of the welding head 221. The CCD camera module a222 photographs and detects the welding position.

The carrier assembly includes a supporting plate 23, a plurality of bar-shaped grooves 231 disposed in the supporting plate 23, a plurality of carrier grooves 232 recessed in the supporting plate 23 and arranged at equal intervals for accommodating the injection molding housing 11, welding grooves 233 disposed in the bar-shaped grooves 231 and corresponding to side openings of the carrier grooves 232, and accommodating grooves 234 disposed outside the welding grooves 233 for accommodating the thermistors 13. The end of the injection-molded housing 11 is open toward the side of the carrier groove 232, the terminal 12 is exposed in the welding groove 233, and the thermistor 13 is extended to overlap the position of the terminal 12.

The carrier assembly further comprises a cover plate 24 for covering the carrier groove 232 and pressing the injection molding shell 11 tightly, and hole positions 241 positioned to the positioning columns a235 on the supporting plate 23 are arranged on two sides of the cover plate 24; the cover plate 24 is provided with a plurality of first through holes 242 avoiding the extension housing 18, and the cover plate 24 is provided with a plurality of second through holes 243 avoiding the welding grooves 233. The welding head 221 corresponds to the position of the second through hole 243, so that the position of overlapping the terminal 12 of the thermistor 13 is accurately welded.

The lateral moving assembly is arranged at the bottom of the section of the conveying belt device, so that the lateral moving of the carrier assembly is realized, and the lateral moving assembly is suitable for the welding head 221 for effectively butting multiple products in the carrier assembly; the welding groove 233 and the accommodating groove 234 on the supporting plate 23 are arranged, so that the thermistor 13 and the terminal of the injection molding shell 11 are accurately overlapped, the cover plate 24 is covered, and the welding accuracy is ensured.

Referring to fig. 8 to 21, the front assembly coding device 3 includes a linear moving module b311 welded on the transfer conveyor belt 21 and used for feeding the rear injection molding housing 11 to the front index plate 31, an inner seal ring assembly device, a product turnover device, an iron housing glue dispensing device, an iron housing riveting device, a laser coding device, and a product code scanning and blanking device, which are sequentially arranged on the circumference of the front index plate 31.

The sliding plate 32 is erected at the end position of the transmission belt 21, the bottom of the sliding plate 32 is provided with a clamping hand a321, and the clamping hand a321 is connected with an air cylinder c322 which drives the clamping hand to lift and clamp the cover plate 24 for removal.

The linear moving module b311 is provided with a gripper b312 for transferring the injection molded case 11 in the pallet 23 to the base. The gripper b312 grips and turns over the injection-molded housing 11.

The front indexing plate 31 is provided with a plurality of circumferentially and uniformly distributed bases 33, the base 33 is provided with two positioning grooves 331 side by side, one ends of the exposed terminals 12 of the injection molding shell 11 are placed in the positioning grooves 331, the extension shell 18 is placed on the surface of the base 33, the surface of the base 33 is provided with positioning columns b332, and the positioning holes 181 in the extension shell 18 are correspondingly butted with the positioning columns b 332.

The inner seal ring assembling device comprises a vibration disc a34, an offset material distributing tool a341 which is butted with the vibration disc a34 and used for distributing the inner seal ring of the vibration disc a34, and a linear moving module c343 which is used for transferring the seal ring on the offset material distributing tool a341 to the chuck structure a 342.

The staggered material distribution tool comprises a material distribution block 35 butted with the vibration disc, a material distribution groove 351 arranged on the material distribution block 35 and used for transiting and transferring materials, and a staggered groove 352 arranged on the side edge of the material distribution block 35 and used for moving the staggered butted material distribution groove 351; the dislocation slot 352 is provided at the top of the dislocation block 353, and the dislocation block 353 is connected to the cylinder d 354. The sealing ring in the vibration disc passes through the material distributing groove 351 to the dislocation groove 352, and the dislocation block 353 moves to be dislocated and separated from the material distributing groove 351.

The linear moving module c343 is provided with an anti-drop joint assembly a36, the anti-drop joint assembly comprises an installation block 361, a joint 362 penetrating through the installation block 361, and a joint sleeve 363 sleeved outside the joint 362 and capable of moving in a telescopic manner; a cavity 364 is provided in the joint 362. The joint 362 is inserted into and expands the sealing ring in the offset groove 352, the outer circumference of the joint 362 abuts against the inner circumference of the sealing ring, and the sealing ring is tightly sleeved on the joint 362 for transfer.

The chuck structure includes a multi-jaw chuck 365, a guide plate 366 provided on each jaw of the multi-jaw chuck 365; the top of each claw is provided with a protrusion 367, the center of the guide plate 366 is provided with a round hole 368, the circumferential equal division positions of the round hole 368 are respectively provided with a guide groove 369 for guiding each protrusion 367, and each claw gathers the sealing ring on the grabbing joint 362 for temporarily storing the sealing ring.

The front indexing disc is further provided with a clamping hand c313, the clamping hand c313 is opened and closed to clamp the injection molding shell 11 in the base 33, the mounting block 361 moves to the upper side of the injection molding shell 11, the connector 362 is in butt joint with the injection molding shell 11, the clearance cavity 364 is in clearance with the exposed terminal 12 on the injection molding shell 11, and the connecting sleeve 363 extends out of the end of the connector 362 to push the sealing ring on the connector 362 into the injection molding shell 11.

The product turnover device comprises a clamping hand d323, a rotating air cylinder e324 connected with the clamping hand d323, and a CCD camera module b314 arranged on the front index plate 31. The cylinder e324 is connected to a servo motor a 325. The gripper d323 grips the injection molded case 11 in the base 33 and turns 180 °, and the notch 121 of the injection molded case 11 is placed upward. When the clamping hand d323 grabs the injection molding shell 11, the CCD camera module b314 takes a picture of the mounting position of the inner seal ring 17 for detection.

The iron shell glue dispensing device comprises a vibration disc b37, a dislocation distributing tool b371 used for distributing the iron shell 14 in the vibration disc b37 and butted with the vibration disc b37, a linear moving module d372 used for moving the iron shell 14 on the dislocation distributing tool b371 to a plurality of material storage structures, and a glue dispensing structure arranged on the side edge of one material storage structure.

The linear moving module d372 is provided with a clamping hand e 373.

The storage structure comprises a storage platform 374 arranged on the side edge of the front dividing plate 31 and a storage trough 375 arranged at the top of the storage platform 374 and used for accommodating the bottom column 141 of the iron shell 14; the abutting portion 142 of the iron case 14 rests on the surface of the storage platform 374.

The dispensing structure includes a vertical plate 376 vertically disposed, an air cylinder f378 disposed on the vertical plate 376 for driving the dispensing plate 377 to move up and down along the vertical plate, and a dispenser (not shown in the figure) disposed on the dispensing plate 377. The glue dispenser dispenses glue inside into the butt joint part 141 of the iron shell 14 through a glue tube.

The iron shell riveting device comprises a first jacking component for positioning the left and right positions of the injection molding shell 11, a second jacking component for positioning the front and rear positions of the iron shell 14, a linear moving module e379 and a semi-finished product spinning component, wherein the riveting injection molding shell 11 is arranged on the linear moving module e379 and is used for riveting the injection molding shell 11 in the iron shell 14.

The first jacking assembly comprises two moving blocks 381 which are arranged in a sliding mode relatively along the jacking plate 38, and clamping hands 382 which are arranged on the two moving blocks 381 at opposite positions; the two clamping arms 382 are positioned at symmetrical positions on both sides of the injection-molded shell 11. The top press plate 38 is connected with a cylinder g383 for driving the top press plate to move transversely and a cylinder h384 for driving the top press plate to move longitudinally, and the two moving blocks 381 are connected with a cylinder i (not shown in the figure) for driving the top press plate 38 to move horizontally.

The second pressing component comprises a pressing platform 385, a connecting plate 386 arranged in a groove body on the pressing platform 385 and moving horizontally, an inclined sliding groove 387 arranged in the connecting plate 386, a connecting rod 388 in matching and shaft connection with the inclined sliding groove 387, and a fixing rod 39 with a clamping function corresponding to the outer end of the connecting rod 388. The link plate 386 is connected to a cylinder j 391.

The connecting rod 388 and the fixing rod 39 clamp the butt joint position of the iron shell 14, the connecting plate 386 moves, the shaft head at the bottom of the connecting rod 388 moves along the inclined sliding groove 387, and therefore the connecting rod 388 is pushed to be matched with the fixing rod 39 to achieve clamping opening and closing. The link 388 and the catch 382 are disposed in a relatively vertical position.

The bottom of the top pressing table 385 is disposed on the bottom table 392, a bottom hole (not shown) avoiding the iron case 14 is disposed on the bottom table 392, the gripper e373 in the linear moving module d372 transfers the dispensed iron case 14 from the storage table 374 to a position between the fixing rod 39 and the connecting rod 388, the bottom end of the iron case 14 is disposed in the bottom hole, and the abutting portion 142 is disposed upward.

The semi-finished spinning assembly comprises an L-shaped plate 393, a clamping hand f394 penetrating through the L-shaped plate 393, a rotating shaft 395 connected with the top end of the clamping hand f394, and a clamping plate 396 arranged on the side edge of the rotating shaft 395 and used for clamping the rotating shaft to lift; a servo motor b397 is connected to the top end of the rotating shaft 395. A cylinder k398 is attached to the side of the clamp plate 396. The clamping hand f394 on the linear moving module e379 is shifted to the position of the iron shell 14 on the bottom table 392 from the injection shell 11 equipped with the inner sealing ring on the front indexing disc 31, the clamping hand f394 presses the end part of the exposed terminal 12 of the injection shell 11 to be inserted into the bottom column 141 of the iron shell 14, the clamping hands of the two moving blocks 381 fix the injection shell 11, the clamping hand f394 is released, and the jacking plate 38 descends to rivet the injection shell 11 and the iron shell 14 in place. The L plate 393 is attached to the linear movement module e379, and the gripper f394 of the linear movement module e379 transfers the riveted product to the front index plate 31 again.

The laser coding device comprises a coding machine 315 arranged on the front dividing plate 31 and used for marking on the injection molding shell 11, and a dust collector 316 arranged on the outer side of the front dividing plate 31 and used for absorbing smoke dust of the coding machine 315.

The product code scanning and blanking device comprises a code scanning gun 317 arranged on the outer side of the front indexing disc 31. The gripper b312 in the linear moving module b311 performs the original return blanking of the assembled temperature sensor in the front index plate 31.

Referring to fig. 22 to 25, the temperature point testing and cleaning apparatus 4 includes a linear movement module f41 for transferring the temperature sensor on the assembled conveyor belt to be loaded, a plurality of resistance testing devices for detecting the temperature in sections, a cleaning and blowing device, a batch transferring device for transferring a plurality of groups of temperature sensors in the resistance testing devices to the cleaning and blowing device, and a linear movement module g411 for transferring the temperature sensor on the cleaning and blowing device to be unloaded.

The linear moving module f41 is provided with a gripper g412, and the linear moving module g411 is provided with a gripper h 413.

The resistance testing device comprises a plurality of constant temperature control devices with different temperature controls and a resistance detector for butting terminals in the temperature sensor; the thermostatic control device is in butt joint with the temperature sensors, and the clamping hands i enable the temperature sensors to be respectively transferred into the thermostatic control devices at different temperature stages for detection.

The constant temperature control device comprises a constant temperature oil groove 42, an electric measuring board 421 arranged on the side edge of the constant temperature oil groove 42 and capable of moving up and down, and a plurality of PIN PINs 422 arranged on the electric measuring board 421 and penetrating through the electric measuring board at intervals; the tail end of PIN 422 is connected to a resistance detector (not shown).

One constant-temperature oil groove is filled with constant-temperature 25 ℃ oil, the other constant-temperature oil groove is filled with 90 ℃ oil, the two sides of the constant-temperature oil groove storing the 90 ℃ oil are provided with heat insulation plates 423, and a smoke exhaust hood 424 is arranged above the constant-temperature oil groove.

The batch transferring device comprises a moving platform 43 arranged on the top of the opening of the constant temperature oil tank 42, and a linear moving module h431 arranged corresponding to the moving platform 43 in a matching way; the two sides of the moving platform 43 are provided with hook plates 432 with notches, the linear moving module h431 is provided with a frame 433, the two sides of the frame 433 are provided with clamping hands i434 for grabbing the moving of the moving platform 43, and the clamping hands i434 are arranged corresponding to the notches in the hook plates 432.

A plurality of temperature sensors 1 arranged at equal intervals are placed on the movable platform 43, the iron shell 14 of the temperature sensor 1 penetrates through the movable platform 43 to extend downwards to be inserted into oil in the constant temperature oil groove 42, and the extension shell 18 is hung on the surface of the movable platform 43.

The electric measuring board 421 is connected with an air cylinder l 425 for driving the electric measuring board to move up and down, the PIN needle 422 is butted with the terminal 12 in the notch 121 of the alignment temperature sensor 1, and the resistance detector detects resistance data when the temperature sensor 1 is in different stages of temperature sensing.

The temperature point testing and cleaning equipment 4 further comprises a plurality of preset frames 435 arranged on the side edges of the constant temperature oil tanks 42 and behind the constant temperature oil tanks 42, the movable table 43 is placed on the top of the preset frames 435, and the clamping hands g412 move the assembled temperature sensors 1 to the movable table 43 arranged on the preset frames 435. The gripper i434 moves the movable stage 43 on the predetermined rack 44 to the top of the constant temperature oil bath 42.

The cleaning and blowing device includes a cleaning tank 44, an ultrasonic cleaner (not shown) corresponding to the cleaning tank 44, and a plurality of blowing pipes 441 disposed behind the cleaning tank 44. A plurality of blowing pipes 441 are arranged on the connecting pipe 442 at equal intervals.

The moving table 43 on the preset shelf 435 located behind the constant temperature oil tank 42 is transferred to the top of the cleaning tank 44 by the gripper i434, and the ultrasonic cleaner cleans the temperature sensor 1 on the moving table 43, so that oil stains fall into the cleaning tank 44.

The hand clamp i434 moves the moving table 43 on the top of the cleaning tank 44 to the preset frame 435 on the side of the air blowing pipes 441, the air blowing pipes 441 are connected in series to an air blower (not shown in the figure), and the air blowing pipes 441 blow and dry the position of the temperature sensor 1.

The gripper h413 transfers and discharges the temperature sensor 1 in the movable stage 43 on the side of the blowing pipe 441.

Referring to fig. 26 to 32, the rear assembly inspection apparatus 5 includes an outer seal ring assembling device, a check ring assembling device, a pressure resistance testing device, an air tightness inspection device, and a loading/unloading device, which are sequentially disposed in the circumferential direction of the rear index plate 51.

A plurality of clamping seats 511 are uniformly distributed on the circumference of the rear dividing plate 51, and bayonets 512 for clamping the temperature sensor 1 are arranged on the outer sides of the clamping seats 511. The iron case 14 of the temperature sensor 1 is placed through the bayonet 512 downward.

The feeding and discharging device comprises a linear moving module i513 arranged on the side edge of the rear index plate 51, a defective product box 514 arranged below the linear moving module i513 and a conveying belt located behind the defective product box 514 and used for discharging.

The linear moving module i513 is provided with a gripper j515, and the gripper j515 transfers the temperature sensor 1 after detection of air-drying to the cassette 511 on the rear index plate 51 for loading.

The outer sealing ring assembling device comprises a vibrating disk c52, a dislocation splitting tool c521 which is butted with the vibrating disk c52 and used for splitting a sealing ring of the vibrating disk c52, and a linear moving module j523 which is used for transferring the sealing ring on the dislocation splitting tool c521 to a chuck structure b 522.

An anti-drop joint component b524 is installed on the linear moving module j523, an inner joint of the anti-drop joint component is inserted into and stretches off a sealing ring in the dislocation groove, the outer periphery of the joint is in butt joint with the inner periphery of the sealing ring, and the sealing ring is tightly sleeved on the joint for transfer.

The side of the chuck structure b522 is provided with an air cylinder m525 for driving the chuck structure b522 to ascend and descend, a round hole in the chuck structure b522 is butted with the position of the iron shell 14 of the temperature sensor 1, the chuck structure b522 ascends to the position of the corresponding clamping seat 511, and the inner sealing ring of the chuck structure b522 is transferred to the bottom column 141 of the iron shell 14.

A fixture block assembly a526 matched with the chuck structure b522 is arranged on the rear dividing plate 51, and comprises a fixture block 527 and a cylinder n528 connected with the fixture block 527 and driving the fixture block 527 to ascend and descend; the bottom of the latch 527 is correspondingly pressed against the surface of the clamping seat 511, and the latch 527 is tightly pressed against the extension shell 18, so as to prevent the chuck structure b522 from rising and excessively ejecting out the temperature sensor 1.

The retainer ring assembling device comprises a vibrating disk d53, a dislocation distributing tool d531 for distributing retainer rings of a vibrating disk d53 and a multidirectional moving assembly in butt joint with the dislocation distributing tool d531, wherein the dislocation distributing tool d53 is in butt joint with the vibrating disk d, the multidirectional moving assembly comprises a moving frame 532 for fixing a dislocation block 353, an air cylinder o533 for driving the moving frame 532 to move along the X-axis direction, an air cylinder p534 for driving the moving frame 532 to move along the Y-axis direction, and an air cylinder q535 for driving the moving frame 532 to move along the Z-axis direction.

The retainer ring 16 in the offset groove 352 moves to a position below the temperature sensor 1 in the cassette 511, and the movable frame 532 is raised to transfer and fit the retainer ring 16 to the bottom post 141 of the iron case 14.

And a fixture block assembly b536 which is matched with the retainer ring assembling device is arranged on the rear indexing disc 51. The latch 527 presses against the extension case 18 to prevent the displacement block 353 from rising to eject the temperature sensor 1 excessively.

The pressure resistance testing device comprises a first fixing plate 54 which is arranged on the inner side of the clamping seat 511 and moves up and down, a first probe 541 which is arranged on the first fixing plate 54 and correspondingly butted with the injection molding shell 11, a second fixing plate 542 which is arranged on the outer side of the clamping seat 511 and moves horizontally, and a second probe 543 which is arranged on the second fixing plate 542 and correspondingly butted with the outer sealing ring 15. First probe 541 and second probe 543 are connected to a withstand voltage tester (not shown in the figure) respectively, and the withstand voltage tester sends the detection result to the industrial computer, effectively detects temperature sensor's dielectric strength performance.

An air cylinder r545 for driving the first fixing plate 54 to move up and down along the first straight plate 544 is connected to the first fixing plate 54; the second fixing plate 542 is connected to a cylinder s (not shown) for driving the second fixing plate to move horizontally along the second straight plate 546 and to be fed to the side of the clamping seat 511.

The air tightness detection device comprises a positioning seat 55 arranged outside the rear dividing plate 51, a positioning plate 551 arranged on the side edge of the positioning seat 55 and moving to extend to tightly press the temperature sensor 1 so as to enable the temperature sensor 1 to be embedded in the positioning seat 55 in a sealing manner, an air inlet 553 arranged on the positioning seat 55 and communicated with a sealing cavity 552 in which the temperature sensor 1 is embedded, and an air source (not shown in the figure) connected with the air inlet 553. The air source is connected with an air tightness detector.

The airtightness detection apparatus further includes a linear movement module k56 for transferring the temperature sensor 1 on the index plate 51 to the positioning stand 55. The linear moving module k56 is provided with a gripper k 561.

A strip-shaped rod 554 is arranged on the side edge of the positioning plate 551, and the strip-shaped rod 554 is connected with an air cylinder t555 for driving the strip-shaped rod to transversely move; the positioning plate 551 is connected with an air cylinder u556 for driving the positioning plate 551 to move up and down.

A sealing cavity 552 is arranged in the positioning seat 55, the iron shell 14 of the temperature sensor 1 is arranged in the sealing cavity 552, the outer sealing ring is clamped in the top opening of the sealing cavity 552, and the extension shell 18 is arranged on the surface of the positioning seat 55. The air tightness detector detects the external sealing performance of the temperature sensor 1 and sends a detection result to the industrial personal computer.

The gripper j515 of the linear moving module i513 transfers the temperature sensor 1 in the cassette 511 to a conveyor belt for feeding, and feeding is performed.

Example 2:

1) positioning an injection molding shell 11 in the carrier assembly, manually placing a thermistor 13 to be in butt joint with a terminal 12 in the injection molding shell 11, matching a welding moving device, and welding the thermistor 13 and the terminal in the injection molding shell 11 by a welding head to form a welding semi-finished product;

2) the linear moving module puts the welding semi-finished product into the front indexing disc 31 for circulation;

3) the inner sealing ring assembling device sleeves the sealing ring into one end of the exposed terminal on the injection molding shell 11;

4) the iron shell glue dispensing device performs glue dispensing treatment on the butt joint part 142 of the iron shell 14;

5) the iron shell 14 is inserted into the end part of the injection molding shell 11 with the sealing ring, and the iron shell riveting device rivets the iron shell 14 and the welding semi-finished product in place to form a riveting semi-finished product;

6) a code printing machine 315 in the laser code printing device prints codes on the riveting semi-finished products and performs blanking;

8) the linear moving module puts the riveting semi-finished product into the rear dividing plate 51 for circulation;

9) the outer sealing ring assembling device is used for sleeving the sealing ring on the iron shell 14;

10) the retainer ring assembly device sleeves the retainer ring 16 into the iron shell 14 and keeps off the outer seal ring 15 to complete the assembly of the temperature sensor;

11) the withstand voltage testing device carries out withstand voltage testing on the temperature sensor 1;

12) the air tightness detection device detects the external sealing performance of the temperature sensor 1;

13) and (5) blanking and packaging the finished product.

In step 3), the end of the exposed terminal 12 on the injection molding shell 11 is positioned upwards in the base 33 on the front index plate 31, and after the inner seal ring is assembled, the product turnover device repositions the end of the exposed terminal 12 on the injection molding shell 11 downwards.

In step 7), during resistance testing, the parts of the iron shell 14 are immersed in the constant temperature oil grooves 42 with different temperatures, and the PIN 422 is abutted with the terminal 12 in the injection molding shell 11 to perform resistance detection, so as to obtain resistance data of the temperature sensor under different temperature conditions.

And 7), cleaning the temperature sensor 1 of the oil stain by ultrasonic waves, and drying the temperature sensor by blowing.

In the step 11), in the pressure resistance test, a probe is butted on the injection molding shell 11 and the position of a sealing ring positioned outside the injection molding shell, and a pressure resistance detector detects data.

In the step 12), in the air tightness test, the iron shell 14 of the temperature sensor 1 is sealed in the sealed cavity 552, and data is detected by the air tightness detector by accessing an air source of the sealed cavity 552.

When the embodiment is applied, the mounting position of the thermistor is ensured by arranging the special carrier assembly to be matched with the mobile welding device, so that the assembling deviation of the terminal 12 and the thermistor 13 in the temperature sensor 1 is avoided; the anti-drop joint assembly is matched with the chuck structure, so that the temperature sensor is ensured to be stably loaded when the inner sealing ring or the outer sealing ring is assembled, and the problem of spring-off is avoided; the iron shell 14 is subjected to dispensing treatment, the traditional screwing mode is avoided, the assembly is carried out through the riveting technology, the integrity of the thermistor 13 arranged in the iron shell 14 is ensured, and the short circuit problem is avoided; the temperature point test and the cleaning equipment are used for carrying out resistance test, and the pressure resistance test and the air tightness test are carried out in the post-assembly detection equipment, so that an automatic circulation process is formed, and the quality of the temperature sensor can be efficiently and accurately detected.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. Thermistor temperature sensor assembly equipment which characterized in that: the device comprises welding equipment, front assembly coding equipment, rear assembly detection equipment and a plurality of linear moving modules for transferring parts; the welding equipment comprises a multi-section spliced transmission belt device, a carrier assembly, a movable welding device, an iron shell glue dispensing device, an iron shell riveting device and an air tightness detection device, wherein the carrier assembly is arranged on the transmission belt device and used for bearing products to be welded, the movable welding device is arranged above the carrier assembly and used for welding a thermistor and an injection shell terminal, the front assembly code printing equipment comprises an inner sealing ring assembling device, an iron shell glue dispensing device and an iron shell riveting device, the inner sealing ring assembling device is sequentially arranged in the circumferential direction of a front dividing plate and used for being sleeved with an upper sealing ring of an injection shell, the iron shell glue dispensing device is used for dispensing glue in the iron shell, the iron shell riveting device is used for riveting the iron shell and forming the injection shell, and the rear assembly detection equipment comprises an outer sealing ring assembling device, a pressure resistance test device and an air tightness detection device, the outer sealing performance of the temperature sensor is sequentially arranged in the circumferential direction of a rear dividing plate and used for being sleeved with the upper sealing ring of the iron shell.

2. A thermistor temperature sensor assembly device according to claim 1, characterized in that: the thermistor temperature sensor general assembly equipment also comprises temperature point testing and cleaning equipment arranged behind the front assembly coding equipment; the temperature point testing and cleaning equipment comprises a plurality of segmented temperature resistance testing devices used for detecting the resistance of the temperature sensor and a cleaning and air blowing device used for cleaning and drying the temperature sensor.

3. A thermistor temperature sensor assembly device according to claim 1, characterized in that: the mobile welding device comprises a welding head and a CCD camera module arranged on the side edge of the welding head.

4. A thermistor temperature sensor assembly device according to claim 1, characterized in that: the inner seal ring assembly device comprises a chuck structure for temporarily storing the seal ring and an anti-falling joint assembly for propping open the inner seal ring in the chuck structure and transferring the inner seal ring.

5. A thermistor temperature sensor assembly device according to claim 1, characterized in that: the iron shell glue dispensing device comprises a storage structure for containing the iron shell and a glue dispensing structure for lifting and moving the iron shell, and glue in the glue dispensing structure is dispensed into the butt joint part of the iron shell.

6. A thermistor temperature sensor assembly device according to claim 1, characterized in that: and a laser code printing device and a product code scanning and blanking device are further arranged behind the iron shell riveting device.

7. The assembling method of the thermistor temperature sensor general assembling equipment is characterized by comprising the following steps of:

13) and (5) blanking and packaging the finished product.

8. A thermistor temperature sensor assembly method according to claim 7, characterized in that: in step 7), during resistance testing, parts of the iron shell are immersed in constant-temperature oil grooves with different temperatures, resistance detection is carried out on the terminals in the injection molding shell through the PIN, and resistance data of the temperature sensors under different temperature conditions are obtained.

9. A thermistor temperature sensor assembly method according to claim 7, characterized in that: and 11), in the pressure resistance test, butting probes on the injection molding shell and the position of a sealing ring positioned outside the injection molding shell, and detecting data by a pressure resistance detector.

10. A thermistor temperature sensor assembly method according to claim 7, characterized in that: and step 12), in the air tightness test, the iron shell of the temperature sensor is sealed in the sealed cavity, and data are detected by the air tightness detector through an air source connected into the sealed cavity.