Temperature sensor assembly production process

Abstract

The invention discloses a temperature sensor assembly production process, which comprises the following steps of: firstly, stripping an outer skin at one end of a wire to expose an internal conductive wire core; further, every two wires form a group, the wires are placed on a positioning jig at intervals, and the multiple groups of wires are positioned at the same time through the positioning jig; further, the positioning jig is transferred to a tin dipping station, and the exposed end of the wire is subjected to tin dipping treatment, so that the end part of the wire is hardened; further, the positioning jig is transferred to a shaping station, and the end parts of each group of wires are subjected to punch forming by a shaping machine, so that the end parts of the wires are bent to form clamping parts; further, the positioning jig is transferred to a sensor inserting station, the sensors are inserted into the clamping parts of each group of wires by a chip inserting machine, and the sensors are clamped by the clamping parts of the wires; further, the positioning jig is transferred to a tin soldering station, and the wire and the sensor are welded together through a tin soldering machine; and finally, taking out the welded wire and sensor assembly from the positioning jig.

Description

Technical field:

[0001] The invention relates to the technical field of sensor production, and in particular to an assembly production process for a temperature sensor. Background technology:

[0002] A temperature sensor is a device that can sense the temperature of an environment or an object and convert it into a measurable signal. It is widely used in many fields such as industry, medical treatment, home appliances, automobiles, aerospace, etc. to monitor, control and optimize various temperature-related systems and equipment. Temperature sensors are divided into many types according to their working principles, application scenarios and measurement ranges, including thermocouples, thermistors, semiconductor temperature sensors, infrared temperature sensors, etc.

[0003] In the assembly and production process of temperature sensors, connecting the temperature sensor to the wire is a very critical step in the entire assembly process. The quality of the wire connection step directly affects the stability and accuracy of the sensor's signal transmission. In order to ensure that the temperature sensor can work accurately in different environments, the wire connection step must be strictly controlled to ensure that the connection is reliable and durable. The most traditional and safe way is usually to manually weld the wires together, but as the size of the sensor becomes smaller and smaller, manual welding of the sensor and the wire not only leads to production capacity that cannot meet demand, but also manual welding is difficult to guarantee the yield rate. For example: A high temperature resistant and moisture-proof NTC thermistor with a Chinese patent application authorization announcement number of CN204010867U. In the scheme disclosed in the patent, two leads 2 are welded on the NTC thermistor chip 1 to transmit signals with an external circuit or device.

[0004] In view of this, the inventor proposes the following technical solution. Summary of the invention:

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a temperature sensor assembly production process.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solution: a temperature sensor assembly production process, comprising the following steps:

[0007] First, peel off the outer sheath of one end of the wire to expose the inner conductive core;

[0008] Further, the wires are placed in groups of two at intervals on a positioning jig, and several groups of wires are positioned at the same time by the positioning jig;

[0009] Further, the positioning jig is transferred to the tinning station, and the exposed end of the wire is tinned to harden the end of the wire;

[0010] Further, the positioning jig is transferred to a forming station, and a forming machine is used to stamp and form the ends of each group of wires, so that the ends of the wires are bent to form a clamping portion;

[0011] Further, the positioning jig is transferred to the sensor insertion station, and the sensor is inserted into the holding part of each group of wires by the chip insertion machine, and the sensor is clamped by the clamping parts of the two wires;

[0012] Further, the positioning jig is transferred to the soldering station, and the wire and the sensor are soldered together by a soldering machine;

[0013] Finally, the welded wires and sensor components are removed from the positioning fixture.

[0014] Furthermore, in the above technical solution, the wires are arranged in groups of two on a positioning jig, and the exposed ends of the wires are extended out of the positioning jig. The extrusion molding module in the molding machine symmetrically extrude the exposed ends of the wires, so that the ends of the wires form a symmetrical "V"-shaped clamping portion.

[0015] Furthermore, in the above technical solution, the positioning jig is provided with a plurality of positioning grooves for positioning the two wires, and after the wires are placed in the positioning grooves, the wires are fixed to the positioning jig by means of tape or a pressing plate.

[0016] Furthermore, in the above technical solution, in the molding station, the positioning jig is positioned and installed on the horizontal transfer module, and the positioning jig is pushed toward the extrusion molding module by the horizontal transfer module to insert the exposed part of the wire into the extrusion molding module. After the wire and the positioning jig are pressed and fixed by the upper pressing positioning module, the wire is extruded and bent by the extrusion molding module to form a clamping part.

[0017] Furthermore, in the above technical solution, the horizontally movable cutting module includes a first supporting base and a first moving platform and a second moving platform which are stacked on the first supporting base and can independently move toward and away from the extrusion molding module, wherein the clamping and positioning module is installed on the first moving platform and spans above the second moving platform, and the positioning fixture is positioned and installed on the second moving platform and can move therewith to the bottom of the clamping and positioning module.

[0018] Furthermore, in the above technical solution, the clamping and positioning module includes a gantry bracket installed on the first moving platform and spanning above the second moving platform, a fifth guide rail and a sixth guide rail vertically arranged on the gantry bracket, a lower pressure plate slidably installed on the fifth guide rail and the sixth guide rail and used for clamping the positioning fixture, and a fourth cylinder installed on the gantry bracket and used to drive the lower pressure plate to rise and fall, wherein the lower pressure plate is in a "concave" shape and the fourth cylinder is located in the groove.

[0019] Furthermore, in the above technical solution, the extrusion molding module includes a second support base arranged beside the horizontal cutting module, a molding mold arranged on the second support base and capable of press-molding multiple groups of wires, and a driving device for driving the molding mold to extrude the wires, wherein the molding mold includes a mold stand arranged on the second support base, a fixed template installed on the mold stand and used to extend into the middle of each group of wires, and a left sliding template and a right sliding template slidably arranged on the mold stand and respectively extrude the wires on both sides of the fixed template, and the left sliding template, the fixed template and the right sliding template are respectively provided with a left relief portion, a middle concave portion and a right relief portion which are arranged in a staggered and coplanar manner and are used to extrude multiple groups of wires.

[0020] Furthermore, in the above technical solution, the driving device includes a driving block arranged on one side of the molding mold and used to be able to move closer and farther away from each other, a first connecting rod and a second connecting rod which are cross-hinged and installed at one end of the driving block in a "V" shape and are respectively hinged to the ends of the left sliding template and the right sliding template, a limiting guide seat arranged on the second support base and used to limit the driving block to maintain linear motion, and a fifth cylinder installed on the second support base and used to drive the limiting guide seat to move.

[0021] Furthermore, in the above technical solution, in the sensor insertion station, the chip insertion machine includes a plug-in mechanism for installing a positioning jig and moving up and down, a positioning device arranged beside the plug-in mechanism and used to pre-position the wires on the positioning jig, and a feeding positioning mechanism arranged below the plug-in mechanism and used to arrange the positioning sensor, wherein, when the positioning jig is placed on the plug-in mechanism, the clamping portion of the wires on the positioning jig faces downward, and the positioning device is first moved toward the plug-in mechanism and inserted between the clamping portions of each group of wires to ensure that the spacing of the clamping portions meets the requirements, and then the positioning jig is moved to the top of the feeding positioning mechanism through the plug-in mechanism, and after the feeding positioning mechanism arranges the sensor directly below the wire, the plug-in mechanism drives the positioning jig to descend, so that the sensor is clamped and clamped by the clamping portion of each group of wires, and then the plug-in mechanism returns to its position.

[0022] Furthermore, in the above technical solution, the feeding and positioning mechanism includes a feeding module for arranging and feeding the sensors and a supporting and positioning device for arranging and positioning the sensors at intervals below the wires. The supporting and positioning device supports the sensors through a cantilever support plate, so that the wires can pass downward from both sides of the cantilever support plate, and clamp the sensors between the clamping parts of each group of wires. After the wires clamp the sensors, the cantilever support plate is separated from the support for the sensors, so that the wires can stably clamp the sensors. Of course, the supporting and positioning device can also use magnetic attraction to suspend the sensors below the wires.

[0023] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art: in the present invention, by placing the wires in groups of two on a positioning fixture, and then simultaneously performing a tinning process on multiple groups of wires through the positioning fixture, the exposed parts of the wires are stained with solder, and the characteristics of metal tin are utilized to not only improve the rigidity of the exposed parts of the wires for easy extrusion molding, but also improve the welding strength after the exposed parts are tinned; subsequently, the tinned wires are extruded and molded by a shaping machine, so that the exposed parts of the wires are bent in a "V" shape, and an elastic clip is formed by utilizing the symmetrically distributed clamping part structure of each group of wires, which not only facilitates the rapid insertion of the sensor between the two wires for clamping, but also the two symmetrical "V"-shaped clamping parts can stably clamp the sensor; finally, the sensor is inserted into the ends of the two wires by a chip insertion machine, and then transferred to a welding station for welding, thereby replacing manual assembly welding, greatly improving assembly efficiency and finished product quality. Description of the drawings:

[0024] Figure 1 The process flow diagram of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2 The process flow diagram of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 3 It is a structural diagram of the setting machine in the present invention;

[0027] Figure 4 It is a structural diagram of the horizontal cutting module and the pressing and positioning module in the present invention;

[0028] Figure 5 is a structural diagram of the second motion platform in the present invention;

[0029] Figure 6 It is a structural diagram of the clamp in the present invention;

[0030] Figure 7 It is a structural diagram of the extrusion molding module in the present invention;

[0031] Figure 8 It is a structural diagram of the forming mold in the present invention;

[0032] Fig. 9 This is a partial enlarged view of the X in 8;

[0033] Fig.10 is an exploded view of the forming die in the present invention; Specific implementation method:

[0034] The present invention is further described below in conjunction with specific embodiments and drawings.

[0035] See Figures 1 to 10As shown, a temperature sensor assembly production process includes the following steps:

[0036] First, peel off the outer sheath of one end of the wire 1 to expose the inner conductive wire core;

[0037] Further, the wires 1 are placed in groups of two at intervals on the positioning jig 2, and several groups of wires 1 are positioned at the same time by the positioning jig 2;

[0038] Further, the positioning fixture 2 is transferred to the tinning station, and the exposed end of the wire 1 is tinned to harden the end of the wire 1;

[0039] Further, the positioning jig 2 is transferred to the shaping station, and the shaping machine 3 performs stamping and shaping on the end of each group of wires 1, so that the end of the wires 1 is bent to form a clamping portion 11;

[0040] Further, the positioning jig 2 is transferred to the sensor insertion station, and the sensor 4 is inserted into the holding part of each group of wires 1 by the chip insertion machine, and the sensor 4 is clamped by the clamping parts of the two wires 1;

[0041] Further, the positioning fixture 2 is transferred to the soldering station, and the wire 1 and the sensor 4 are soldered together by a soldering machine;

[0042] Finally, the welded wire 1 and sensor 4 assembly is taken out from the positioning fixture 2 .

[0043] In the present invention, the wires 1 are placed on a positioning fixture 2 in groups of two, and then multiple groups of wires 1 are simultaneously subjected to a tinning process through the positioning fixture 2, so that the exposed parts of the wires 1 are stained with solder. By utilizing the characteristics of metallic tin, not only can the rigidity of the exposed parts of the wires 2 be improved for easy extrusion molding, but also the strength of welding can be improved after the exposed parts are tinned. Subsequently, the tinned wires 1 are extruded and molded by a shaping machine 3, so that the exposed parts of the wires 1 are bent in a "V" shape, and an elastic clip is formed by utilizing the symmetrically distributed clamping parts 11 structure of each group of wires 1, which not only facilitates the rapid insertion of the sensor 4 between the two wires 1 for clamping, but also the two symmetrical "V"-shaped clamping parts 11 can stably clamp the sensor 4. Finally, the sensor 4 is inserted into the ends of the two wires 1 by a chip insertion machine, and then transferred to a welding station for welding, thereby replacing manual assembly welding, greatly improving assembly efficiency and finished product quality.

[0044] The wires 1 are arranged in groups of two on the positioning jig 2, and the exposed end of the wire 1 is extended out of the positioning jig 2. The extrusion molding module 32 in the molding machine 3 symmetrically extrudes the exposed end of the wire 1, so that the end of the wire 1 forms a "V"-shaped symmetrical clamping portion 11. The "V"-shaped bending portion is formed by die pressing at the end of the wire 1, and the sensor 4 is symmetrically clamped by two "V"-shaped clamping portions 11. The "V"-shaped clamping portions 11 are not only the shortest in the middle to form a strong clamping force, but also the inclined surfaces on both sides form a guide structure at the opening to facilitate the insertion of the sensor.

[0045] The positioning jig 2 is provided with a plurality of positioning grooves 21 for positioning the two wires 1, and after the wires 1 are placed in the positioning grooves 21, the wires 1 are fixed to the positioning jig 2 by means of adhesive tape 22 or a pressure plate. Among them, the first mounting hole 23 and the second mounting hole 24 for fixing are provided at both ends of the positioning jig 2. In one embodiment, the wire 1 is fixed by adhesive tape 22 pasted on the positioning jig 2. Since in the tinning process, only the exposed part of the wire 1 is immersed in the molten tin liquid, the resistance of the wire 1 is very small, so the adhesive strength of the adhesive tape 22 is sufficient to fix the wire 1, and the subsequent shaping station and the sensor insertion station are provided with devices for pressing and fixing the positioning jig 2 and the wire 1, so the wire 1 is fixed by the adhesive tape 22, which can not only achieve the fixing effect of the wire 1, but also greatly reduce the cost, and the fixing method is simple and efficient, which is conducive to efficient production.

[0046] In the shaping station, the positioning jig 2 is positioned and installed on the horizontal shifting and cutting module 31, and the positioning jig 2 is pushed toward the extrusion molding module 32 by the horizontal shifting and cutting module 31, so that the exposed part of the wire 1 is inserted into the extrusion molding module 32. After the wire 1 and the positioning jig 2 are pressed and fixed by the upper pressing positioning module 33, the wire 1 is extruded and bent by the extrusion molding module 32 to form the clamping portion 11.

[0047] The horizontal cutting module 31 includes a first support base 311 and a first moving platform 312 and a second moving platform 313 which are stacked on the first support base 311 and can independently move toward and away from the extrusion molding module 32, wherein the clamping and positioning module 33 is installed on the first moving platform 312 and spans above the second moving platform 313, and the positioning fixture 2 is positioned and installed on the second moving platform 313 and can move therewith to the bottom of the clamping and positioning module 33. The first motion platform 312 includes a first guide rail 312A and a second guide rail 312B installed in parallel on the first support base 311 and perpendicular to the extrusion molding module 32, a first motion plate 312C slidably installed on the first guide rail 312A and the second guide rail 312B, and a first cylinder 312D installed on the first support base 311 and used to push the first motion plate 312C to move closer to and away from the extrusion molding module 32; the second motion platform 313 includes a third guide rail 313A and a fourth guide rail 313B installed in parallel on the first motion platform 312, and a first motion plate 312C slidably installed on the first guide rail 312A and the second guide rail 312B. 3A and a second moving plate 313C on the fourth guide rail 313B, a second cylinder 313D installed on the first moving platform 312 and used to push the second moving plate 313C towards and away from the extrusion molding module 32, a clamp 313E arranged at one end of the second moving plate 313C and used to fix the positioning fixture 2 and the wire 1, a wire groove plate 313H arranged at the other end of the second moving plate 313C, and a first buffer positioning device 313F and a second buffer positioning device 313G symmetrically arranged at both ends of the first guide rail 312A and the second guide rail 313B and used to limit the movement of the second moving plate 313C.

[0048] The clamp 313E includes a fixed clamp seat 313E1 fixedly installed at the front end of the second moving plate 313C, a movable clamp seat 313E2 slidably arranged below the fixed clamp seat 313E1 and capable of cooperating to clamp the wire 1, a slider bearing 313E3 arranged between the fixed clamp seat 313E1 and the movable clamp seat 313E2, a plurality of suction cup devices 313E4 arranged on the fixed clamp seat 313E1 and used to adsorb and fix the positioning fixture 2, and a suction cup device 313E4 installed at the bottom of the second moving plate 313C and used to drive the movable clamp seat 313E2 to move relative to the fixed clamp seat 313E1 to clamp and release the wire 1. The sliding module 313E5 of the wire 1 and the third cylinder 313E6 installed at the bottom of the second moving plate 313C and used to drive the sliding module 313E5 to drive the movable clamp seat 313E2 to reciprocate. The fixed clamp seat 313E1 and the movable clamp seat 313E2 are respectively provided with a plurality of first clamp blocks 313E1A and second clamp blocks 313E2A which are alternately distributed and used to cooperate in clamping the wire 1. The two ends of the fixed clamp seat 313E1 are provided with first positioning pins 313E1B and second positioning pins 313E1C which match the first mounting holes 23 and the second mounting holes 24 on the positioning fixture 2.

[0049] The clamping and positioning module 33 includes a gantry bracket 331 installed on the first moving platform 312 and spanning above the second moving platform 313, a fifth guide rail 332 and a sixth guide rail 333 vertically arranged on the gantry bracket 331, a lower pressure plate 334 slidably installed on the fifth guide rail 332 and the sixth guide rail 333 and used to clamp the positioning fixture 2, and a fourth cylinder 335 installed on the gantry bracket 331 and used to drive the lower pressure plate 334 to rise and fall, wherein the lower pressure plate 334 is in a "concave" shape, and the fourth cylinder 335 is located in the groove.

[0050] The extrusion molding module 32 includes a second support base 321 arranged beside the horizontal cutting module 31, a molding die 322 arranged on the second support base 321 and capable of pressing and molding multiple groups of wires 1, and a driving device 323 for driving the molding die 322 to extrude and mold the wires 1, wherein the molding die 322 includes a mold stand 324 arranged on the second support base 321, a fixed template 325 installed on the mold stand 324 and used to extend into the middle of each group of wires 1, and a left sliding template 326 and a right sliding template 327 slidably arranged on the mold stand 324 and respectively extruding the wires 1 on both sides of the fixed template 325, and the left sliding template 326, the fixed template 325 and the right sliding template 327 are respectively provided with a left relief portion 326A, a middle concave portion 325A and a right relief portion 327A which are arranged in a staggered and coplanar manner and are used to extrude multiple groups of wires 1. Among them, the middle concave portion 325A is in the shape of a pointed cone, and the two sides of the middle part are inwardly arc-shaped, and a left arc-shaped groove and a right arc-shaped groove are formed in the middle to match the left relief portion 326A and the right relief portion 327A respectively; the front end of the left relief portion 326A is opposite to the middle of the middle concave portion 325A, and a left arc-shaped protrusion 326A1 corresponding to the left arc-shaped groove is formed at the end to punch the wire 1, and transition arc surfaces are formed on both sides of the left arc-shaped protrusion 326A1, and the right relief portion 327A has the same structure as the left relief portion 326A, and has a right arc-shaped protrusion 327A1 corresponding to the right arc-shaped groove to punch the wire 1.

[0051] A seventh guide rail 328 and an eighth guide rail 329 perpendicular to the first motion platform 312 are arranged below the second support base 321 , and a seventh cylinder 320 for driving the second support base 321 to slide is arranged in parallel beside the seventh guide rail 328 and the eighth guide rail 329 .

[0052] The driving device 323 includes a driving block 323A arranged on one side of the molding mold 322 and used to move relatively closer or farther away, a first connecting rod 323B and a second connecting rod 323C which are cross-hinged and installed in a "V" shape at one end of the driving block 323A and are respectively hinged to the ends of the left sliding template 326 and the right sliding template 327, a limiting guide seat 323D arranged on the second supporting base 321 and used to limit the driving block 323A to maintain linear motion, and a fifth cylinder 323E installed on the second supporting base 321 and used to drive the limiting guide seat 323D to move. Among them, the fixed template 325, the left sliding template 326 and the right sliding template 327 are arranged in sequence from top to bottom, the other ends of the first connecting rod 323B and the second connecting rod 323C are hinged to the end of the driving block 323A through the pin 323F, and the first connecting rod 323B is located below the second connecting rod 323C; a travel space 327B for accommodating the left relief portion 326A and the middle concave portion 325A and capable of inserting two wires 1 is provided between every two right relief portions 327A on the right sliding template 327, and the exposed ends of the two wires 1 are respectively inserted between the left relief portion 326A and the middle concave portion 325A and between the right relief portion 327A and the middle concave portion 325A.

[0053] In the sensor insertion station, the chip insertion machine includes a plug-in mechanism for installing the positioning fixture 2 and moving up and down, a positioning device arranged beside the plug-in mechanism and used to pre-position the wire 1 on the positioning fixture 2, and a feeding positioning mechanism arranged below the plug-in mechanism and used to arrange the positioning sensor 4. When the positioning fixture 2 is placed on the plug-in mechanism, the clamping portion 11 of the wire 1 on the positioning fixture 2 faces downward, and the positioning device is first moved toward the plug-in mechanism and inserted between the clamping portions 11 of each group of wires 1 to ensure that the spacing of the clamping portions 11 meets the requirements, and then the positioning fixture 2 is moved to the top of the feeding positioning mechanism through the plug-in mechanism. After the feeding positioning mechanism arranges the sensor 4 directly below the wire 1, the plug-in mechanism drives the positioning fixture 2 to descend, so that the sensor 4 is clamped and clamped by the clamping portion 11 of each group of wires 1, and then the plug-in mechanism returns to its position.

[0054] The feeding and positioning mechanism includes a feeding module for arranging and feeding the sensors 4 and a supporting and positioning device for arranging and positioning the sensors 4 at intervals below the wire 1. The supporting and positioning device supports the sensors 4 through a cantilever support plate, so that the wires 1 can pass downward from both sides of the cantilever support plate, and clamp the sensors 4 between the clamping parts 11 of each group of wires 1. After the wires 1 clamp the sensors 4, the cantilever support plate is separated from the support for the sensors 4, so that the wires 1 can stably clamp the sensors 4. Of course, the supporting and positioning device can also suspend the sensors 4 below the wires 1 by magnetic attraction.

[0055] In summary, in the present invention, the wire 1 is cut into several sections according to a specified length, and one end of each section of the wire 1 is stripped to expose the conductive core inside the wire 1; further, the wires 1 are aligned and placed on the positioning jig 2 in groups of two, and the exposed part of the wire 1 extends out of the positioning jig 2 to one side. Of course, the stripping step of the wire 1 can also be completed after the wire 1 is placed on the positioning jig 2; further, the positioning jig 2 loaded with the wire 1 is transferred to the tinning station, and the exposed part of the wire 1 is inserted into the tin liquid so that the exposed part of the wire 1 is adhered to the tin and hardened, so that the wire 1 has sufficient rigidity to be retained during subsequent press forming. The shape remains unchanged; further, the positioning jig 2 loaded with the wire 1 is transferred to the shaping machine 3 and placed on the horizontal cutting module 31, and the first positioning pin 313E1B and the second positioning pin 313E1C are inserted into the first mounting hole 23 and the second mounting hole 24 for positioning, and the positioning jig 2 is adsorbed and fixed by the suction cup device 313E4, and the active clamp seat 313E2 cooperates with the fixed clamp seat 313E1 to clamp and fix the wire 1, so as to ensure that no active deviation occurs when the wire 1 is pressed; further, the exposed part of the wire 1 is moved and inserted into the extrusion molding module 32 by the horizontal cutting module 31, and the positioning jig is lowered by the pressing and positioning module 33. The positioning fixture 2 is pressed to ensure that the position between the wire 1 and the positioning fixture 2 and the horizontal cutting module 31 is fixed, and then the exposed part of the wire 1 is squeezed by the extrusion molding module 32, so that the exposed part of the wire 1 is bent to form a "V"-shaped clamping part 11; further, the extrusion molding module 32, the pressing and positioning module 33, and the horizontal cutting module 31 are reset in sequence, and the positioning fixture 2 is transferred to the chip insertion machine. At this time, the positioning fixture 2 is suspended on the plug-in mechanism in a vertical state, and the clamping part 11 of the wire 1 is at the lower end; further, the pre-positioning block is first inserted between the clamping parts 11 of the wire 1 through the positioning device to ensure the clamping space of the clamping part 11 of each group of wires 1 The positioning jig 2 is consistent, and then moved to the top of the feeding positioning mechanism by the plug-in mechanism. The feeding positioning mechanism sends the sensors 4 to the bottom of the plug-in mechanism in an interval arrangement, and ensures that the two sides of each sensor 4 are suspended for the insertion of the clamping part 11 of the wire 1, and ensures that the sensor 4 can move relatively and be inserted between the clamping parts 11 of the two wires 1. After the plug-in mechanism and the feeding positioning mechanism repeatedly operate to complete the assembly of all the wires 1 and the sensors 4 on the positioning jig 2, the plug-in mechanism is reset, the positioning jig 2 is taken out and transferred to the welding station; further, the contact parts of the wires 1 and the sensors 4 are welded by a welding machine to complete the stable fixation of the wires 1 and the sensors 4.

[0056] Of course, the above description is only a specific embodiment of the present invention and is not intended to limit the scope of implementation of the present invention. All equivalent changes or modifications made according to the structure, characteristics and principles described in the patent application scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A temperature sensor assembly production process, characterized in that: The following steps are involved: First, the outer sheath of one end of the wire (1) is peeled off to expose the inner conductive wire core; Furthermore, the wires (1) are placed in groups of two at intervals on a positioning jig (2), and the positioning jig (2) is used to simultaneously position a plurality of groups of wires (1); Further, the positioning jig (2) is transferred to a tinning station, and the exposed end of the wire (1) is tinned to harden the end of the wire (1); Further, the positioning jig (2) is transferred to a shaping station, and the shaping machine (3) performs stamping and shaping on the end of each group of wires (1), so that the end of the wires (1) is bent to form a clamping portion (11); Further, the positioning jig (2) is transferred to the sensor insertion station, and the sensor (4) is inserted into the holding part of each group of wires (1) by the chip insertion machine, and the sensor (4) is clamped by the clamping parts (11) of the two wires (1); Further, the positioning jig (2) is transferred to a soldering station, and the wire (1) and the sensor (4) are soldered together by a soldering machine; Finally, the welded wire (1) and sensor (4) assembly is removed from the positioning fixture (2).

2. A temperature sensor assembly production process according to claim 1, characterized in that: The wires (1) are arranged in groups of two on a positioning jig (2), and an exposed end of the wire (1) is extended out of the positioning jig (2). An extrusion molding module (32) in a molding machine (3) symmetrically extrude the exposed end of the wire (1), so that the end of the wire (1) forms a symmetrical "V"-shaped clamping portion (11).

3. The temperature sensor assembly production process according to claim 1, characterized in that: The positioning jig (2) is provided with a plurality of positioning grooves (21) for positioning the two wires (1), and after the wires (1) are placed in the positioning grooves (21), the wires (1) are fixed to the positioning jig (2) by means of adhesive tape (22) or a pressing plate.

4. The temperature sensor assembly production process according to claim 1, characterized in that: In the shaping station, the positioning jig (2) is positioned and installed on the horizontal cutting module (31), and the positioning jig (2) is pushed toward the extrusion molding module (32) by the horizontal cutting module (31), so that the exposed part of the wire (1) is inserted into the extrusion molding module (32), and after the wire (1) and the positioning jig (2) are pressed and fixed by the upper pressing positioning module (33), the wire (1) is pressed and bent by the extrusion molding module (32) to form the clamping portion (11).

5. A temperature sensor assembly production process according to claim 4, characterized in that: The horizontally movable cutting module (31) comprises a first supporting base (311) and a first moving platform (312) and a second moving platform (313) which are stacked on the first supporting base (311) and can independently move toward and away from the extrusion molding module (32), wherein the clamping and positioning module (33) is installed on the first moving platform (312) and straddles the second moving platform (313), and the positioning fixture (2) is positioned and installed on the second moving platform (313) and can move therewith to the bottom of the clamping and positioning module (33).

6. A temperature sensor assembly production process according to claim 4, characterized in that: The clamping and positioning module (33) includes a gantry bracket (331) installed on the first moving platform (312) and spanning above the second moving platform (313), a fifth guide rail (332) and a sixth guide rail (333) vertically arranged on the gantry bracket (331), a lower pressure plate (334) slidably installed on the fifth guide rail (332) and the sixth guide rail (333) and used for clamping the positioning fixture (2), and a fourth cylinder (335) installed on the gantry bracket (331) and used for driving the lower pressure plate (334) to rise and fall, wherein the lower pressure plate (334) is in a "concave" shape, and the fourth cylinder (335) is located in the groove.

7. A temperature sensor assembly production process according to claim 4, characterized in that: The extrusion molding module (32) comprises a second support base (321) arranged beside the horizontal cutting module (31), a molding die (322) arranged on the second support base (321) and capable of extruding and molding a plurality of groups of wires (1), and a driving device (323) for driving the molding die (322) to extrude and mold the wires (1), wherein the molding die (322) comprises a mold stand (324) arranged on the second support base (321), a mold stand (324) installed on the mold stand (324) and used to A fixed template (325) extends into the middle of each group of wires (1) and a left sliding template (326) and a right sliding template (327) are slidably arranged on a mold stand (324) and respectively extrude the wires (1) on both sides of the fixed template (325). The left sliding template (326), the fixed template (325) and the right sliding template (327) are respectively provided with a left relief portion (326A), a middle concave portion (325A) and a right relief portion (327A) which are arranged in a staggered coplanar manner and are used to extrude multiple groups of wires (1).

8. The temperature sensor assembly production process according to claim 7, characterized in that: The driving device (323) comprises a driving block (323A) arranged on one side of the molding die (322) and used to move relatively closer or further away, a first connecting rod (323B) and a second connecting rod (323C) which are cross-hinged and installed at one end of the driving block (323A) in a V-shaped manner and are respectively hinged to the ends of the left sliding template (326) and the right sliding template (327), a limiting guide seat (323D) arranged on the second supporting base (321) and used to limit the driving block (323A) to maintain linear motion, and a fifth cylinder (323E) installed on the second supporting base (321) and used to drive the limiting guide seat (323D) to move.

9. A temperature sensor assembly production process according to any one of claims 1 to 8, characterized in that: In the sensor insertion station, the chip insertion machine comprises a plug-in mechanism for installing a positioning jig (2) and moving up and down, a positioning device arranged beside the plug-in mechanism and used for pre-positioning the wire (1) on the positioning jig (2), and a feeding positioning mechanism arranged below the plug-in mechanism and used for arranging the positioning sensor (4), wherein when the positioning jig (2) is placed on the plug-in mechanism, the clamping portion (11) of the wire (1) on the positioning jig (2) faces downward, and the positioning jig (2) is first moved toward the plug-in mechanism through the positioning device and inserted between the clamping portions (11) of each group of wires (1), ensuring that the spacing of the clamping portions (11) meets the requirements, and then the positioning jig (2) is moved to the top of the feeding positioning mechanism through the plug-in mechanism, and after the feeding positioning mechanism arranges the sensor (4) directly below the wire (1), the plug-in mechanism drives the positioning jig (2) to descend, so that the sensor (4) is clamped and clamped by the clamping portion (11) of each group of wires (1), and then the plug-in mechanism returns to its original position.

10. A temperature sensor assembly production process according to claim 9, characterized in that: The feeding and positioning mechanism comprises a feeding module for arranging and feeding the sensors (4) and a supporting and positioning device for arranging and positioning the sensors (4) at intervals below the wire (1). The supporting and positioning device supports the sensors (4) via a cantilever support plate, so that the wires (1) can pass downward from both sides of the cantilever support plate, and the sensors (4) are clamped between the clamping parts (11) of each group of wires (1). After the wires (1) clamp the sensors (4), the cantilever support plate is separated from the support for the sensors (4), so that the wires (1) can stably clamp the sensors (4). Of course, the supporting and positioning device can also use magnetic attraction to suspend the sensors (4) below the wires (1).

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