Temperature sensor contact welding device

Abstract

The invention discloses a temperature sensor contact welding device in the field of sensor contact welding equipment, which comprises a welding workbench, a rotating disc is arranged on the welding workbench, a plurality of fixed molds are arranged on the rotating disc, and the fixed molds are circumferentially and uniformly distributed around the center of the rotating disc; a product position quality inspection table, an electric resistance welding table, a tin soldering table and a transfer mechanical arm are sequentially arranged outside the rotating disc, and the product position quality inspection table, the electric resistance welding table, the tin soldering table and the transfer mechanical arm are evenly distributed on the welding workbench in the rotating direction of the rotating disc; an adjusting rail and a transfer rail are further arranged on the welding workbench, the transfer mechanical arm is installed on the transfer rail, and the tin soldering welding table is installed on the adjusting rail. Through cooperation of electric resistance welding and tin soldering, the temperature sensor contact welding quality is improved through automatic welding, and therefore the product quality is improved.

Description

Technical Field

[0001] The invention relates to the field of sensor contact welding equipment, in particular to a temperature sensor contact welding device. Background Art

[0002] When welding the contacts of the temperature sensor, the welding method and the welding quality of the contacts will directly affect the polarity, sensitivity and long-term stability of the temperature sensor. Therefore, ensuring the welding quality of the contacts of the temperature sensor is the key to ensuring the production quality of the temperature sensor.

[0003] During the production process of temperature sensors, the accuracy of the temperature sensors during use can be effectively guaranteed by accurately positioning the welding contact points and ensuring high welding quality. However, in the current production process, the contacts of temperature sensors are usually welded by manual spot welding, and then quality inspection is performed manually. Therefore, there will be certain defects in the products produced, and the quality inspection failure rate and re-work rate are both high. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art that manual welding is used when welding the contacts of a temperature sensor, resulting in low contact welding quality, thereby causing a high failure rate of the temperature sensor in the production process. A temperature sensor contact welding device is provided, which improves the welding quality of the temperature sensor contacts by automated welding through the combination of resistance welding and tin soldering, thereby improving product quality.

[0005] The purpose of the present invention is mainly achieved through the following technical solutions:

[0006] A temperature sensor contact welding device comprises a welding workbench, a rotating disk is provided on the welding workbench, a plurality of fixed molds are provided on the rotating disk, and the fixed molds are evenly distributed around the center of the rotating disk;

[0007] A product position quality inspection table, a resistance welding table, a tin soldering table and a transfer robot arm are sequentially arranged outside the rotating disk, and the product position quality inspection table, the resistance welding table, the tin soldering table and the transfer robot arm are evenly distributed on the welding workbench along the rotation direction of the rotating disk;

[0008] The welding workbench is also provided with an adjustment track and a transfer track, the transfer robot arm is installed on the transfer track, and the soldering welding table is installed on the adjustment track.

[0009] At present, manual welding is mainly used for welding the contacts of temperature sensors. The fixed manual workstations lead to too long assembly line projects, and only one welding method can be used for contact welding. The stability of the welding contacts is poor, resulting in low product quality and high rework rate, which wastes manpower and material resources, increases production costs, and reduces production efficiency.

[0010] In the present invention, the welding workbench provides an operating space for contact welding of the temperature sensor, the rotating disk is used to carry the fixed mold, the fixed mold can effectively load the temperature sensor to be welded and keep the temperature sensor stable when welding the contacts, the rotating disk completes the operation by rotating and transporting the fixed mold to each designated position, after the temperature sensor is placed in the fixed mold, the placement position of the temperature sensor is first inspected by the product position quality inspection station, and then the contact position is spot welded by the resistance welding welding station, after resistance welding, the contact welding position is relatively flat, the stability of the welding position is enhanced, but the sensitivity is poor, after resistance welding, the fixed mold is rotated to the soldering welding station, the thickness of the contact position is increased by soldering, and the conductivity of the contact position is improved, so that on the basis of ensuring that the contact position of the temperature sensor is stable and firm, a higher conductivity can be obtained, so that the temperature sensor produced by the present invention can be improved in quality, thereby ensuring production efficiency and production qualification rate.

[0011] After resistance welding and soldering are completed, the temperature sensor can be transported to the subsequent process by a transfer robot.

[0012] Furthermore, the soldering table comprises a base, the base is provided with an adjustment track, and the adjustment track is installed on the adjustment track;

[0013] The base is provided with a lifting track, a lifting platform is installed on the lifting track, and a soldering joint is fixed on the lifting platform;

[0014] The adjusting track extends to the edge of the rotating disk, and the adjusting track can transport the base to the edge of the rotating disk. The position of the soldering joint corresponds to the fixed mold: when the base moves toward the rotating disk, the soldering joint can move to just above the fixed mold.

[0015] In the present invention, the soldering table adjusts the horizontal position of the soldering table by adjusting the sliding of the crawler on the adjustment track, so that the soldering table can act on each contact of the temperature sensor, and the lifting table on the lifting track can implement welding or stop welding by lifting the height of the soldering joint.

[0016] Furthermore, the soldering joint includes a fixed end, which is fixed to the lifting platform, and a welding end is provided on the fixed end. A welding rod tube is provided on the side of the welding end, and the welding rod tube can adjust the diameter of the soldering rod and guide the soldering rod to the end of the soldering end.

[0017] In the present invention, the height of the soldering joint is driven by a fixed end, the welding end is used to burn the soldering rod, thereby completing the soldering, and the soldering rod tube is used to guide the soldering rod and control the extension state of the soldering rod.

[0018] Further, the welding rod tube comprises a material tube, the upper end of the material tube is free, and a heating chamber is fixed at the lower end thereof, a plurality of conveying wheels are arranged in the heating chamber, and the conveying wheels can push the tin welding rod downward, a plurality of cross bars are arranged in the heating chamber, and a reciprocating expansion assembly is arranged on the inner wall of the heating chamber, one end of the cross bar is fixed to the reciprocating expansion assembly, and a hot melt end is fixed to the other end thereof, and the axis of the cross bar intersects with the axis of the tin welding rod;

[0019] A strip-out pipe is fixed below the heating chamber, a strip-out channel is arranged inside the strip-out pipe, and the strip-out channel faces the welding end.

[0020] In the present invention, the material tube in the welding rod tube is used to accommodate the tin welding rod, and when the tin welding rod is conveyed into the heating chamber by the action of the conveying wheel, the hot melt end can soften the tin welding rod by heating, and through the mutual extrusion and heating between the hot melt ends, the tin welding rod at the rod outlet tube can be softened by heat and the diameter can be changed by extrusion. The reciprocating expansion component can adjust the telescopic position of the cross bar by adjusting the expansion degree, so that the diameter of the tin welding rod can be changed with the adjustment of the cross bar position and the heating and extrusion of the hot melt end. Therefore, the tin welding rod of uniform specifications can adjust the diameter of the tin welding rod according to the change of demand, so as to achieve the purpose of more effectively completing the soldering of the temperature sensor. Through the guidance of the rod outlet tube and the rod outlet channel, the tin welding rod can effectively cooperate with the welding end to complete the soldering. In this process, since the tin welding rod is heated, the preheating effect of the tin welding rod is also completed, making the soldering process smoother.

[0021] Furthermore, the inner wall of the material tube is provided with a plurality of stabilizing rollers, and the stabilizing rollers are embedded in the inner wall of the material tube and contact with the outer surface of the tin soldering rod.

[0022] The present invention avoids the problem of the soldering rod retreating or bending during the conveying process by arranging a stabilizing roller.

[0023] Furthermore, an adjusting wheel is provided between the conveying wheel and the hot melt end, and the reciprocating expansion assembly comprises an articulated arm, one end of the articulated arm is hinged to the side of the adjusting wheel, and the other end thereof is connected to a bellows, and the bellows is hinged to the articulated arm;

[0024] An expansion airbag is fixed on the inner wall of the heating chamber, and a connecting pipe is provided between the bellows and the expansion airbag, and the connecting pipe can connect the bellows and the expansion airbag;

[0025] The cross bar is fixed to the inflatable airbag and can reciprocate with the expansion and contraction of the inflatable airbag.

[0026] In the present invention, the adjusting wheel is used to provide a lifting stroke for the articulated arm. One end of the articulated arm is hinged to the adjusting wheel, and the other end is hinged to the bellows. Therefore, when the adjusting wheel rotates, the articulated arm can drive the bellows to stretch upward, or compress the bellows downward through the articulated arm. During the stretching and compression process of the bellows, the connecting tube can control the expansion and contraction of the expansion airbag, and the position of the cross bar can be controlled by the expansion and contraction of the expansion airbag. The total amount of gas in the expansion airbag and the bellows is fixed, so that the rotation angle of the adjusting wheel can effectively control the expansion degree of the expansion airbag.

[0027] Furthermore, a heat preservation chamber is provided below the hot melt end, a strip outlet is provided at the top of the heat preservation chamber, a heat preservation channel is provided directly below the strip outlet, a heat preservation layer is provided inside the channel wall of the heat preservation channel, and the heat preservation layer is filled with heat preservation liquid outside;

[0028] The heat preservation channel is directly opposite to the strip outlet pipe and is in communication with the strip outlet pipe.

[0029] In the present invention, the insulation chamber is used to preheat and insulate the soldering rod, thereby improving the smoothness of soldering. The strip outlet is opposite to the insulation channel, and the temperature of the soldering rod is ensured to be stable through the insulation channel. The insulation layer is used to ensure the temperature of the insulation channel is constant, and the insulation liquid is used to reduce heat loss.

[0030] Furthermore, a conical sleeve is disposed outside the strip outlet pipe, and a partition is disposed inside the conical sleeve, and the partition separates the conical sleeve into two upper and lower parts that are independent of each other;

[0031] A variable diameter bellows is provided above the partition, the lower end of the variable diameter bellows is fixed to the partition and communicated with the lower part of the partition through a valve, the upper end of the variable diameter bellows is provided with a telescopic partition, the end of the telescopic partition is provided with a contact roller, and the contact roller abuts against the inner wall of the tapered sleeve;

[0032] A lifting and reciprocating assembly is provided above the telescopic partition, and the lifting and reciprocating assembly can longitudinally drive the telescopic partition to reciprocate;

[0033] A liquid extraction port is provided below the partition layer, and the liquid extraction port is connected to the strip outlet channel. A first partition net and a second partition net are provided below the partition layer in sequence, a debris layer is filled between the first partition net and the partition layer, and a honeycomb partition is filled between the first partition net and the second partition net.

[0034] In the present invention, the conical sleeve can provide sufficient working space for the internal structure, and the extension of the tin soldering rod is not affected by the tightening of the end. Since the tin soldering rod is heated during the burning process and the tin soldering rod itself is easily melted after being heated, it will carry solder liquid when it comes out of the rod tube. The dripping of solder liquid will affect the yield rate of soldering. The present invention extracts this part of solder liquid by setting a liquid extraction port in the conical sleeve to avoid its dripping. The suction force and thrust are both provided by the expansion and contraction of the variable diameter bellows. In order to avoid damage to the variable diameter bellows, a partition is set in the conical sleeve to separate the liquid extraction port and the variable diameter bellows, so as to achieve the purpose of protecting the variable diameter bellows. The first partition net and the second partition net are used to separate the debris layer and the honeycomb partition plate. The debris layer is used to contact with the solder liquid, so as to avoid the solder liquid from damaging the partition plate. The honeycomb partition plate is used to locally strengthen the conical sleeve in the middle of the conical sleeve to avoid deformation of the conical sleeve. The lifting and reciprocating assembly is used to provide expansion and contraction power for the variable diameter bellows.

[0035] Further, the lifting and reciprocating assembly includes a suspension rod, the suspension rod is fixed to the bottom of the heat preservation chamber, a half gear is provided on the suspension rod, the half gear is connected to the suspension rod through a bearing, a toothed frame is provided outside the half gear, the inner frame of the toothed frame is provided with two rows of inner teeth that are centrally symmetrical, the half gear is meshed with the toothed frame, and the toothed frame is fixedly connected to the telescopic partition;

[0036] A rotation driving assembly is provided on the half gear, and the rotation driving assembly can drive the half gear to rotate.

[0037] In the present invention, the suspension rod is used to provide a rotation space for the half gear, and the half gear is used to drive the lifting and lowering of the toothed frame. The height of the toothed frame can be changed during the rotation of the half gear through the engagement of the half gear and the toothed frame, so that the toothed frame can drive the telescopic partition to be lifted and lowered. The telescopic partition can adapt to the diameter sizes of different heights of the telescopic conical sleeve by telescoping. The contact roller is used to improve the smoothness of the telescopic partition's telescopic process. The internal teeth are used to engage with the half gear, thereby driving the overall lifting and lowering of the toothed frame.

[0038] Further, the rotation drive assembly includes a pump body, the pump body is located in the insulation liquid, the pump body is connected to a first flow pipe, the first flow pipe is connected to an intermediate connecting pipe, the intermediate connecting pipe is connected to a second connecting pipe, and the second connecting pipe is connected to the insulation liquid in the insulation chamber;

[0039] The intermediate connecting pipe includes a first pipe body and a second pipe body, the first pipe body is communicated with the first flow pipe, the second pipe body is communicated with the second flow pipe, a driving cavity is provided between the first pipe body and the second pipe body, a rotating shaft is provided in the driving cavity, a blade is provided on the rotating shaft, one end of the rotating shaft is located in the driving cavity, and the other end thereof is fixed to the center of the half gear;

[0040] A guide filler is provided in the driving cavity, and a driving channel is left in the driving cavity by the guide filler. The blade is located in the driving channel, and an extension direction of the driving channel faces the blade surface of the blade.

[0041] In the present invention, the pump body is used to transport the insulation liquid to the first circulation pipe, so that the insulation liquid flows between the first circulation pipe, the second circulation pipe and the intermediate connecting pipe. The flow of the insulation liquid pushes the blades, thereby causing the rotating shaft to rotate. The rotation of the rotating shaft will drive the half gear to rotate, thereby realizing the lifting and lowering of the toothed frame and achieving the purpose of the telescopic variable diameter bellows.

[0042] The first tube body and the second tube body in the present invention can ensure the fluidity between the intermediate connecting tube and the first circulation tube and the second circulation tube, so that the insulation liquid can effectively act on the blades to generate a driving force. In order to ensure the stability of the driving force, a rotating shaft is arranged in the driving cavity and blades are arranged on the rotating shaft to drive the rotation of the rotating shaft through the flow of insulation liquid. The guide filling can ensure the stability of the flow direction of the insulation liquid, thereby ensuring the stability of the rotation of the rotating shaft.

[0043] In summary, the present invention has the following beneficial effects compared with the prior art:

[0044] (1) The present invention uses resistance welding and soldering to achieve a contact point position of the temperature sensor that has both the connection stability of resistance welding and the high conductivity of soldering, thereby improving the sensitivity of the temperature sensor while improving the stable working ability of the temperature sensor.

[0045] (2) The adjusting wheel of the present invention is used to provide a lifting stroke for the articulated arm. One end of the articulated arm is hinged to the adjusting wheel, and the other end of the articulated arm is hinged to the bellows. Therefore, when the adjusting wheel rotates, the articulated arm can drive the bellows to stretch upward, or compress the bellows downward through the articulated arm. During the stretching and compression process of the bellows, the connecting tube can control the expansion and contraction of the inflatable airbag, and the position of the cross bar can be controlled by the expansion and contraction of the inflatable airbag. The total amount of gas in the inflatable airbag and the bellows is fixed, so that the rotation angle of the adjusting wheel can effectively control the expansion degree of the inflatable airbag.

[0046] (3) In the present invention, the insulation liquid can push the blades in the driving cavity to drive the rotating shaft to rotate under the action of the pump body, thereby driving the half gear to rotate. The rotation of the half gear drives the toothed frame to complete the lifting and lowering. The lifting and lowering of the toothed frame drives the lifting and lowering of the telescopic partition, thereby completing the extension or compression of the variable diameter bellows. The extension and retraction of the variable diameter bellows can effectively provide adsorption force for the strip output tube, thereby preventing excess solder liquid from dripping from the strip output channel and protecting the qualified rate of soldering. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0048] Figure 1 It is a schematic diagram of the structure of the present invention;

[0049] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0050] Figure 3 This is a schematic diagram of the structure of the soldering welding station of the present invention;

[0051] Figure 4 A side view of a soldering station of the present invention;

[0052] Figure 5 It is a cross-sectional schematic diagram of the welding rod tube of the present invention;

[0053] Figure 6 For the present invention Figure 5 A partial enlarged view of part A;

[0054] Figure 7 This is a schematic diagram of the structure of the reciprocating expansion assembly of the present invention;

[0055] Figure 8 This is a schematic diagram of the structure of the lifting and reciprocating assembly of the present invention;

[0056] Fig. 9 This is a schematic diagram of the structure of the intermediate connecting pipe of the present invention;

[0057] The reference numerals represent: 1, welding workbench; 2, fixed mold; 3, rotating disk; 4, resistance welding table; 5, soldering table; 6, adjustment track; 7, transfer robot arm; 8, product position quality inspection table; 9, transfer track; 51, adjustment track; 52, soldering welding head; 53, lifting platform; 54, lifting track; 55, base; 56, welding rod tube; 521, fixed end; 522, welding end; 5 61. soldering rod; 562. material tube; 563. stabilizing roller; 564. heating chamber; 565. conveying wheel; 5651. regulating wheel; 566. hot melt end; 567. reciprocating expansion assembly; 568. lifting and reciprocating assembly; 569. crossbar; 5610. variable diameter bellows; 5611. partition; 5612. valve; 5613. debris layer; 5614. first partition net; 5615. honeycomb partition; 5616 , second screen; 5617, liquid extraction port; 5618, strip outlet channel; 5619, strip outlet pipe; 5620, conical sleeve; 5621, telescopic partition; 5622, contact roller; 5623, insulation liquid; 5624, insulation layer; 5625, insulation channel; 5626, strip outlet; 5671, articulated arm; 5672, bellows; 5673, connecting pipe; 5674, expansion airbag; 5681, pump body ; 5682, first circulation pipe; 5683, suspension rod; 5684, half gear; 5685, toothed frame; 5686, second circulation pipe; 5687, intermediate connecting pipe; 5688, first bearing; 5689, driving cavity; 56810, first tube body; 56811, blade; 56812, guide filling; 56813, second bearing; 56814, rotating shaft; 56815, second tube body. DETAILED DESCRIPTION

[0058] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0059] Example:

[0060] like Figures 1 to 9 As shown, a temperature sensor contact welding device comprises a welding workbench 1, a rotating disk 3 is provided on the welding workbench 1, a plurality of fixed molds 2 are provided on the rotating disk 3, and the fixed molds 2 are evenly distributed around the center of the rotating disk 3;

[0061] A product position quality inspection station 8, a resistance welding station 4, a tin soldering station 5 and a transfer robot arm 7 are sequentially arranged outside the rotating disk 3. The product position quality inspection station 8, the resistance welding station 4, the tin soldering station 5 and the transfer robot arm 7 are evenly distributed on the welding workbench 1 along the rotation direction of the rotating disk 3;

[0062] The welding workbench 1 is also provided with an adjustment track 6 and a transfer track 9 , the transfer robot arm 7 is installed on the transfer track 9 , and the soldering welding table 5 is installed on the adjustment track 6 .

[0063] In actual application of this embodiment, the temperature sensor is placed in the fixed mold 2, the fixed mold 2 is equipped with the temperature sensor, and the rotating disk 3 is rotated to transport the fixed mold 2 to the product position quality inspection station 8. After the product position quality inspection station 8 performs quality inspection on the placement position of the temperature sensor in the fixed mold 2, the rotating disk 3 is started to transport the fixed mold 2 to the resistance welding station 4, and the resistance welding of the temperature sensor is completed by the resistance welding station 4. The contacts of the temperature sensor are directly spot welded by resistance welding to ensure the stability of the contact fixation. After the resistance welding, the rotating disk 3 is started to transport the fixed mold 2 to the tin soldering station 5, and the contacts of the temperature sensor are soldered to complete the contact welding of the temperature sensor, so that the temperature sensor can have a higher conductivity on the basis of ensuring the stability of the contact connection, thereby effectively improving the stability and sensitivity of the temperature sensor.

[0064] The soldering table 5 comprises a base 55, on which an adjustment track 51 is arranged, and the adjustment track 51 is installed on the adjustment track 6;

[0065] The base 55 is provided with a lifting track 54, a lifting platform 53 is installed on the lifting track 54, and a soldering joint 52 is fixed on the lifting platform 53;

[0066] The adjustment track 6 extends to the edge of the rotating disk 3, and the adjustment track 51 can transport the base 55 to the edge of the rotating disk 3. The position of the soldering joint 52 corresponds to the fixed mold 2: when the base 55 moves toward the rotating disk 3, the soldering joint 52 can move to be directly above the fixed mold 2.

[0067] The soldering joint 52 includes a fixed end 521, which is fixed to the lifting platform 53. A welding end 522 is provided on the fixed end 521. A welding rod tube 56 is provided on the side of the welding end 522. The welding rod tube 56 can adjust the diameter of the soldering rod 561 and guide the soldering rod 561 to the end of the soldering end 522.

[0068] The welding rod tube 56 comprises a material tube 562, the upper end of the material tube 562 is free, and a heating chamber 564 is fixed to the lower end thereof. A plurality of conveying wheels 565 are arranged in the heating chamber 564, and the conveying wheels 565 can push the tin welding rod 561 downward. A plurality of cross bars 569 are arranged in the heating chamber 564, and a reciprocating expansion assembly 567 is arranged on the inner wall of the heating chamber 564. One end of the cross bar 569 is fixed to the reciprocating expansion assembly 567, and a hot melt terminal 566 is fixed to the other end thereof. The axis of the cross bar 569 intersects with the axis of the tin welding rod 561.

[0069] A strip outlet pipe 5619 is fixed below the heating chamber 564 . A strip outlet channel 5618 is disposed in the strip outlet pipe 5619 . The strip outlet channel 5618 faces the welding end 522 .

[0070] In practical applications of this embodiment, since resistance welding is performed before soldering, it is more necessary to effectively ensure the quality of soldering, so as to avoid unqualified contacts of the temperature sensor. The base 55 of the soldering table 5 is used to carry the operating parts of the soldering. The position of the base 55 and the position of the soldering joint 52 are adjusted by the lifting track 54, the adjusting track 51 and the adjusting track 6, so that the soldering joint 52 can be effectively aligned with the fixed mold 2. On this basis, the soldering rod 561 is inserted into the welding rod tube 56 through the material tube 562, and is sent into the heating chamber 564 under the action of the conveying wheel 565, and the soldering rod 561 is preheated in the heating chamber 564.

[0071] Since the requirements for soldering are relatively high in this embodiment, it is necessary to adjust the diameter of the soldering rod 561 according to actual conditions. After the soldering rod 561 is fed into the heating chamber 564, the position of the cross bar 569 can be adjusted accordingly by adjusting the expansion degree of the reciprocating expansion component 567. Since a hot melt end 566 is provided at the end of the cross bar 569, the soldering rod 561 can be heated by the hot melt end 566 contacting the soldering rod 561. At this time, the temperature of the hot melt end 566 can be controlled to avoid completely melting the soldering rod 561 or thermally melting the soldering rod 561. The heated hot melt end 566 can reduce the diameter of the soldering rod by burning, and can also stretch the soldering rod 561 by heating and extruding, thereby changing the diameter of the soldering rod 561. In this embodiment, the adjustment of the diameter of the soldering rod 561 is limited to a limited range, and the purpose is to better adapt to the soldering operation of the contact and improve the welding quality of the soldering position.

[0072] After adjustment by the hot melt end 566 , the soldering rod 561 can be delivered to the position of the welding end 522 through the rod outlet channel 5618 of the rod outlet tube 5619 .

[0073] The inner wall of the material tube 562 is provided with a plurality of stabilizing rollers 563 , and the stabilizing rollers 563 are embedded in the inner wall of the material tube 562 and contact the outer surface of the soldering rod 561 .

[0074] An adjusting wheel 5651 is provided between the conveying wheel 565 and the hot melt end 566. The reciprocating expansion assembly 567 includes an articulated arm 5671. One end of the articulated arm 5671 is hinged to the side of the adjusting wheel 5651. The other end of the articulated arm 5671 is connected to a bellows 5672. The bellows 5672 is hinged to the articulated arm 5671.

[0075] An expansion airbag 5674 is fixed on the inner wall of the heating chamber 564, and a connecting pipe 5673 is provided between the bellows 5672 and the expansion airbag 5674, and the connecting pipe 5673 can connect the bellows 5672 and the expansion airbag 5674;

[0076] The cross bar 569 is fixed to the expansion bag 5674 and can reciprocate with the expansion and contraction of the expansion bag 5674 .

[0077] A heat preservation chamber is provided below the hot melt end 566, a strip outlet 5626 is provided at the top of the heat preservation chamber, a heat preservation channel 5625 is provided directly below the strip outlet 5626, a heat preservation layer 5624 is provided inside the channel wall of the heat preservation channel 5625, and the heat preservation layer 5624 is filled with heat preservation liquid 5623;

[0078] The heat preservation channel 5625 is opposite to the strip outlet pipe 5619 and is connected to the strip outlet pipe 5619 .

[0079] The stabilizing roller 563 in this embodiment is used to ensure the stability and smoothness of the tin soldering rod 561 being fed into the material tube 562. The regulating wheel 5651 between the hot melt end 566 and the conveying wheel 565 can drive the end of the articulated arm 5671 to rise and fall by its own rotation. Since the articulated arm 5671 has a constant length, both ends of the articulated arm 5671 will experience a rise and fall in position. The articulated arm 5671 is connected to the bellows 5672, so that the articulated arm 5671 can be raised and lowered by the rotation of the regulating wheel 5651. The bellows 5672 is extended and retracted, and the bellows 5672 is connected to the expansion airbag 5674. The total amount of gas in the bellows 5672 and the expansion airbag 5674 is constant. Therefore, when the bellows 5672 is extended and retracted, the expansion and contraction of the expansion airbag 5674 can be controlled, so that the position of the cross bar 569 can be adjusted. Since the total amount of gas is constant and the degree of adjustment required for the cross bar 569 is small, the expansion airbag 5674 does not need to expand or contract too much. On this basis, the expansion airbag 5674 can always maintain effective support for the cross bar 569, and the cross bar 569 will not collapse.

[0080] In order to ensure smooth and stable soldering in this embodiment, a heat preservation chamber is provided to stabilize the temperature and shape of the soldering rod 561, thereby ensuring the preheating temperature while avoiding excessive deformation of the soldering rod 561.

[0081] The strip outlet pipe 5619 is provided with a conical sleeve 5620 outside, and a partition 5611 is provided inside the conical sleeve 5620. The partition 5611 separates the conical sleeve 5620 into two independent parts, the upper and the lower parts.

[0082] A variable diameter bellows 5610 is provided above the partition 5611, the lower end of the variable diameter bellows 5610 is fixed to the partition 5611 and communicated with the lower part of the partition 5611 through a valve 5612, a telescopic partition 5621 is provided at the upper end of the variable diameter bellows 5610, a contact roller 5622 is provided at the end of the telescopic partition 5621, and the contact roller 5622 abuts against the inner wall of the tapered sleeve 5620;

[0083] A lifting and reciprocating assembly 568 is provided above the telescopic partition 5621, and the lifting and reciprocating assembly 568 can longitudinally drive the telescopic partition 5621 to reciprocate;

[0084] A liquid extraction port 5617 is provided below the partition 5611, and the liquid extraction port 5617 is connected to the strip outlet channel 5618. A first partition net 5614 and a second partition net 5616 are provided below the partition 5611 in sequence, a debris layer 5613 is filled between the first partition net 5614 and the partition 5611, and a honeycomb partition plate 5615 is filled between the first partition net 5614 and the second partition net 5616.

[0085] In actual application of this embodiment, the variable diameter bellows 5610 is driven to extend and retract through the lifting and reciprocating assembly 568. The variable diameter bellows 5610 can provide more suction force within a limited longitudinal stroke. The valve 5612 is used to open or block the connection between the variable diameter bellows 5610 and the liquid extraction port 5617, so that when liquid extraction is not needed, the valve 5612 can be closed to avoid affecting the extension of the soldering rod 561 from the strip pipe 5619.

[0086] The lifting and reciprocating component 568 drives the variable diameter bellows 5610 to extend and retract by directly driving the telescopic partition 5621 to rise and fall. The telescopic partition 5621 can be horizontally extended and retracted. In order to ensure the smoothness of its longitudinal movement, the sliding friction between the telescopic partition 5621 and the conical sleeve 5620 is changed to rolling friction by setting a contact roller 5622, thereby preventing the telescopic partition 5621 from getting stuck in the conical sleeve 5620.

[0087] When the variable diameter bellows 5610 is extended, a suction force is generated at the liquid extraction port 5617, and the melted solder liquid of the tin solder rod 561 can enter the conical sleeve 5620. The solder liquid temperature is relatively high, so if there is too much solder liquid, it will enter the debris layer 5613 through the obstruction of the first partition net 5614, the honeycomb partition plate 5615, and the second partition net 5616. The debris layer 5613 can use its own gaps to quickly cool the solder liquid and absorb the solder liquid, thereby preventing the solder liquid from entering the variable diameter bellows 5610 through the valve 5612, thereby achieving the purpose of protecting the variable diameter bellows 5610. The honeycomb partition plate 5615 can use its own honeycomb structure to assist in supporting the conical sleeve 5620, thereby achieving the purpose of preventing the conical sleeve 5620 from deformation.

[0088] The lifting and reciprocating assembly 568 includes a suspension rod 5683, which is fixed to the bottom of the heat preservation chamber, and a half gear 5684 is provided on the suspension rod 5683, and the half gear 5684 is connected to the suspension rod 5683 through a bearing, and a toothed frame 5685 is provided outside the half gear 5684, and the inner frame of the toothed frame 5685 is provided with two rows of inner teeth that are centrally symmetrical, and the half gear 5684 is meshed with the toothed frame 5685, and the toothed frame 5685 is fixedly connected to the telescopic partition 5621;

[0089] A rotation driving assembly is provided on the half gear 5684, and the rotation driving assembly can drive the half gear 5684 to rotate.

[0090] The rotation drive assembly includes a pump body 5681, the pump body 5681 is located in the insulation liquid 5623, the pump body 5681 is connected to a first flow pipe 5682, the first flow pipe 5682 is connected to an intermediate connecting pipe 5687, the intermediate connecting pipe 5687 is connected to a second connecting pipe 5673, and the second connecting pipe 5673 is connected to the insulation liquid 5623 in the insulation chamber;

[0091] The intermediate connecting pipe 5687 includes a first pipe body 56810 and a second pipe body 56815. The first pipe body 56810 is communicated with the first circulation pipe 5682, and the second pipe body 56815 is communicated with the second circulation pipe 5686. A driving cavity 5689 is provided between the first pipe body 56810 and the second pipe body 56815. A rotating shaft 56814 is provided in the driving cavity 5689. A blade 56811 is provided on the rotating shaft 56814. One end of the rotating shaft 56814 is located in the driving cavity 5689, and the other end thereof is fixed to the center of the half gear 5684.

[0092] A guide filler 56812 is provided in the driving cavity 5689 , and the guide filler 56812 leaves a driving channel in the driving cavity 5689 . The blade 56811 is located in the driving channel, and the extension direction of the driving channel is toward the blade surface of the blade 56811 .

[0093] In this embodiment, a second bearing 56813 is provided between the guide filler 56812 and the rotating shaft 56814, so as to ensure the free rotation of the rotating shaft 56814 in the driving cavity 5689. A first bearing 5688 is provided between the driving cavity 5689 and the half gear 5684. The first bearing 5688 can ensure the relative rotation between the half gear 5684 and the driving cavity 5689. On the basis of ensuring the support and stability of the driving cavity 5689, the rotation of the half gear 5684 is realized, thereby realizing the lifting and lowering of the driving toothed frame 5685.

[0094] In this embodiment, the pump body 5681 is used to transport the insulation liquid 5623 into the first circulation pipe 5682, so that the insulation liquid 5623 flows between the first circulation pipe 5682, the second circulation pipe 5686 and the intermediate connecting pipe 5687. The flow of the insulation liquid 5623 pushes the blades 56811, so that the rotating shaft 56814 rotates. During the rotation of the rotating shaft 56814, the half gear 5684 is driven to rotate, thereby realizing the lifting and lowering of the toothed frame 5685, thereby achieving the purpose of the telescopic variable diameter bellows 5610.

[0095] In this embodiment, the first tube body 56810 and the second tube body 56815 can ensure the fluidity between the intermediate connecting tube 5687 and the first circulation tube 5682 and the second circulation tube 5686, so that the insulation liquid 5623 can effectively act on the blades 56811 to generate a driving force. In order to ensure the stability of the driving force, a rotating shaft 56814 is arranged in the driving cavity 5689 and blades 56811 are arranged on the rotating shaft 56814. The rotation of the rotating shaft 56814 is driven by the flow of the insulation liquid 5623. The guide filling 56812 can ensure the stability of the flow direction of the insulation liquid 5623, thereby ensuring the stability of the rotation of the rotating shaft 56814.

[0096] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A temperature sensor contact welding device, comprising a welding workbench (1), characterized in that: The welding workbench (1) is provided with a rotating disk (3), and the rotating disk (3) is provided with a plurality of fixed molds (2), and the fixed molds (2) are evenly distributed in the circumferential direction around the center of the rotating disk (3); A product position quality inspection table (8), a resistance welding table (4), a tin soldering table (5) and a transfer robot arm (7) are sequentially arranged outside the rotating disk (3); the product position quality inspection table (8), the resistance welding table (4), the tin soldering table (5) and the transfer robot arm (7) are evenly distributed on the welding workbench (1) along the rotation direction of the rotating disk (3); The welding workbench (1) is also provided with an adjustment track (6) and a transfer track (9), the transfer mechanical arm (7) is installed on the transfer track (9), and the soldering welding table (5) is installed on the adjustment track (6).

2. A temperature sensor contact welding device according to claim 1, characterized in that: The soldering platform (5) comprises a base (55), an adjusting track (51) is provided on the base (55), and the adjusting track (51) is installed on the adjusting track (6); The base (55) is provided with a lifting track (54), a lifting platform (53) is installed on the lifting track (54), and a soldering joint (52) is fixed on the lifting platform (53); The adjustment track (6) extends to the edge of the rotating disk (3), and the adjustment track (51) can transport the base (55) to the edge of the rotating disk (3). The position of the soldering joint (52) corresponds to the fixed mold (2): when the base (55) moves toward the rotating disk (3), the soldering joint (52) can move to the top of the fixed mold (2).

3. A temperature sensor contact welding device according to claim 2, characterized in that: The soldering joint (52) includes a fixed end (521), the fixed end (521) is fixed to the lifting platform (53), a welding end (522) is provided on the fixed end (521), a welding rod tube (56) is provided on the side of the welding end (522), and the welding rod tube (56) can adjust the diameter of the soldering rod (561) and guide the soldering rod (561) to the end of the soldering end (522).

4. A temperature sensor contact welding device according to claim 3, characterized in that: The welding rod tube (56) comprises a material tube (562), the upper end of the material tube (562) is free, and a heating chamber (564) is fixed at the lower end thereof, a plurality of conveying wheels (565) are arranged in the heating chamber (564), and the conveying wheels (565) can push the tin welding rod (561) downward, a plurality of cross bars (569) are arranged in the heating chamber (564), and a reciprocating expansion assembly (567) is arranged on the inner wall of the heating chamber (564), one end of the cross bar (569) is fixed to the reciprocating expansion assembly (567), and a hot melt end (566) is fixed to the other end thereof, and the axis of the cross bar (569) intersects with the axis of the tin welding rod (561); A strip output tube (5619) is fixed below the heating chamber (564), a strip output channel (5618) is provided inside the strip output tube (5619), and the strip output channel (5618) faces the welding end (522).

5. A temperature sensor contact welding device according to claim 4, characterized in that: The inner wall of the material tube (562) is provided with a plurality of stabilizing rollers (563), and the stabilizing rollers (563) are embedded in the inner wall of the material tube (562) and in contact with the outer surface of the soldering rod (561).

6. A temperature sensor contact welding device according to claim 4, characterized in that: An adjusting wheel (5651) is provided between the conveying wheel (565) and the hot melt end (566), and the reciprocating expansion assembly (567) comprises an articulated arm (5671), one end of the articulated arm (5671) is hinged to the side of the adjusting wheel (5651), and the other end thereof is connected to a bellows (5672), and the bellows (5672) is hinged to the articulated arm (5671); An expansion airbag (5674) is fixed on the inner wall of the heating chamber (564), and a connecting pipe (5673) is provided between the bellows (5672) and the expansion airbag (5674), and the connecting pipe (5673) can connect the bellows (5672) and the expansion airbag (5674); The cross bar (569) is fixed to the expansion airbag (5674) and can reciprocate with the expansion and contraction of the expansion airbag (5674).

7. A temperature sensor contact welding device according to claim 4, characterized in that: A heat preservation chamber is provided below the hot melt end (566), a strip outlet (5626) is provided at the top of the heat preservation chamber, a heat preservation channel (5625) is provided directly below the strip outlet (5626), a heat preservation layer (5624) is provided inside the channel wall of the heat preservation channel (5625), and the heat preservation layer (5624) is filled with heat preservation liquid (5623) outside; The heat preservation channel (5625) is directly opposite to the strip outlet pipe (5619) and is connected to the strip outlet pipe (5619).

8. A temperature sensor contact welding device according to claim 7, characterized in that: The strip outlet pipe (5619) is provided with a conical sleeve (5620) outside, and a partition (5611) is provided inside the conical sleeve (5620), and the partition (5611) separates the conical sleeve (5620) into two upper and lower parts that are independent of each other; A variable diameter bellows (5610) is provided above the partition (5611), the lower end of the variable diameter bellows (5610) is fixed to the partition (5611) and communicates with the lower part of the partition (5611) through a valve (5612), a telescopic partition (5621) is provided at the upper end of the variable diameter bellows (5610), a contact roller (5622) is provided at the end of the telescopic partition (5621), and the contact roller (5622) abuts against the inner wall of the conical sleeve (5620); A lifting and reciprocating assembly (568) is provided above the telescopic partition (5621), and the lifting and reciprocating assembly (568) can longitudinally drive the telescopic partition (5621) to reciprocate; A liquid extraction port (5617) is provided below the partition (5611), and the liquid extraction port (5617) is connected to the strip outlet channel (5618). A first partition net (5614) and a second partition net (5616) are provided below the partition (5611) in sequence, a debris layer (5613) is filled between the first partition net (5614) and the partition (5611), and a honeycomb partition plate (5615) is filled between the first partition net (5614) and the second partition net (5616).

9. A temperature sensor contact welding device according to claim 8, characterized in that: The lifting and reciprocating assembly (568) comprises a suspension rod (5683), the suspension rod (5683) is fixed to the bottom of the heat preservation chamber, a half gear (5684) is provided on the suspension rod (5683), the half gear (5684) is connected to the suspension rod (5683) via a bearing, a toothed frame (5685) is provided outside the half gear (5684), the inner frame of the toothed frame (5685) is provided with two rows of inner teeth that are centrally symmetrical, the half gear (5684) is meshed with the toothed frame (5685), and the toothed frame (5685) is fixedly connected to the telescopic partition (5621); A rotation driving assembly is provided on the half gear (5684), and the rotation driving assembly can drive the half gear (5684) to rotate.

10. A temperature sensor contact welding device according to claim 9, characterized in that: The rotation drive assembly comprises a pump body (5681), the pump body (5681) is located in the insulation liquid (5623), the pump body (5681) is connected to a first flow pipe (5682), the first flow pipe (5682) is connected to an intermediate connecting pipe (5687), the intermediate connecting pipe (5687) is connected to a second connecting pipe (5673), and the second connecting pipe (5673) is connected to the insulation liquid (5623) in the insulation chamber; The intermediate connecting tube (5687) comprises a first tube body (56810) and a second tube body (56815), the first tube body (56810) is in communication with the first circulation tube (5682), the second tube body (56815) is in communication with the second circulation tube (5686), a driving cavity (5689) is provided between the first tube body (56810) and the second tube body (56815), a rotating shaft (56814) is provided in the driving cavity (5689), a blade (56811) is provided on the rotating shaft (56814), one end of the rotating shaft (56814) is located in the driving cavity (5689), and the other end thereof is fixed to the center of the half gear (5684); The driving cavity (5689) is provided with a guide filler (56812), and the guide filler (56812) leaves a driving channel in the driving cavity (5689). The blade (56811) is located in the driving channel, and the extension direction of the driving channel is toward the blade surface of the blade (56811).

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