A thermistor chip welding device

Abstract

The invention discloses a thermistor chip welding device, which specifically relates to the technical field of chip welding, comprising a base, a material guiding mechanism is fixedly installed on one side of the top of the base, a welding mechanism is fixedly installed on the other side of the top of the base, a material feeding mechanism is arranged between the material guiding mechanism and the welding mechanism, and a tin guiding mechanism is fixedly installed on one side of the top of the base close to the welding mechanism; the material guiding mechanism comprises two groups of first frames symmetrically distributed and two groups of second frames symmetrically distributed, the first frames and the second frames are both fixedly installed on one side of the top of the base. The invention, by setting the material guiding mechanism and using the tin guiding mechanism in combination, drives a plurality of first components and a second component to be synchronously and intermittently and slowly transmitted, and sequentially and intermittently and slowly transports the plurality of first components and the second components to the welding mechanism for automatic welding processing, thereby improving the overall welding efficiency and welding quality of thermistor chips and reducing damage to workers.

Description

Technical Field

[0001] The invention relates to the technical field of chip welding, in particular to a thermistor chip welding device. Background Art

[0002] Thermistor chip is a kind of temperature sensor, which can change its resistance value according to the change of surrounding temperature. It is mainly divided into NTC thermistor and PTC thermistor. Due to its accuracy and reliability, it has become an important component in temperature measurement and monitoring, and is widely used in home appliances, automobiles, industrial control and other fields.

[0003] When thermistor chips are being produced and processed, they need to be welded to connect the two components by soldering. In traditional welding methods, two components are manually placed on a welding bracket and aligned, and the welding head is controlled to move down to contact the connecting pins of the two components to heat the solder for connection and fixation. The overall efficiency of manual placement is low, the welding quality is inconsistent, and improper operation can easily cause damage to the staff. Therefore, we propose a thermistor chip welding device to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a thermistor chip welding device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a thermistor chip welding device, comprising a base, a material guide mechanism is fixedly installed on one side of the top of the base, a welding mechanism is fixedly installed on the other side of the top of the base, a material feeding mechanism is provided between the material guide mechanism and the welding mechanism, and a tin guide mechanism is fixedly installed on one side of the top of the base close to the welding mechanism;

[0006] The material guiding mechanism comprises two symmetrically distributed groups of first frames and two symmetrically distributed groups of second frames, the first frames and the second frames are both fixedly mounted on one side of the top end of the base, a material guiding shaft is rotatably mounted on the top of each group of the first frames and the second frames, both ends of the material guiding shaft are fixedly mounted with material guiding sprockets, the outer sides of the material guiding sprockets at the same end position of the material guiding shaft are meshedly connected with material guiding chains, a plurality of evenly distributed first racks are fixedly mounted between the two material guiding chains at the position of the first frame, a plurality of evenly distributed second racks are fixedly mounted between the two material guiding chains at the position of the second frame, a first component is disposed on an active card in the first rack, a second component is disposed on an active card in the second rack, a common driving shaft is disposed between the first rack and the second rack, and both ends of the common driving shaft are respectively fixedly mounted to the material guiding shafts on the first rack and the second rack.

[0007] Preferably, the welding mechanism includes a welding outer frame, which is fixedly installed on the top of the base, and the welding outer frame is located between the first frame and the second frame. The top sliding card of the welding outer frame is provided with a first cross frame, and the bottom sliding card of the welding outer frame is provided with a second cross frame. One end of the first cross frame extends out of the outside of the welding outer frame and is provided with a welding head. A first fixing frame is fixedly installed on the outside of the welding head, and one end of the first fixing frame away from the welding head is fixedly installed with the first cross frame, and one end of the second cross frame extends out of the outside of the welding outer frame and is provided with a welding base. A second fixing frame is fixedly installed on the outside of the welding base, and one end of the second fixing frame away from the welding base is fixedly installed with the second cross frame.

[0008] Preferably, a first rack is vertically installed at the bottom end of the first horizontal frame, and the first rack movably passes through the second horizontal frame. A second rack is vertically installed at the top end of the second horizontal frame, and the second rack movably passes through the first horizontal frame. A driving gear is meshingly connected between the first rack and the second rack, and a driving shaft is fixedly installed in the middle of the driving gear, and the driving shaft is rotatably installed in the middle of the welded outer frame.

[0009] Preferably, a first motor is fixedly mounted on a side of the outer wall of the welding outer frame close to the driving shaft, and a driving end of the first motor is fixedly mounted to one end of the driving shaft.

[0010] Preferably, the tin guide mechanism includes a tin guide bracket, which is fixedly installed on the side end of the first bracket, and two third brackets are fixedly installed on the side of the top of the tin guide bracket close to the welding mechanism, and the top of the third bracket is fixedly installed with a tin guide outer frame, and a tin guide tube is vertically installed in the middle of the tin guide outer frame, and a tin bar is movably clamped in the tin guide tube, and two symmetrically distributed material guide wheels are movably clamped in the tin guide outer frame, and a first shaft is fixedly installed in the middle of the material guide wheel, and one end of the first shaft extends out of the outside of the tin guide outer frame and is fixedly installed with a transmission gear, and the two transmission gears are meshed and connected, and the first shaft is rotatably installed on the tin guide outer frame and fixedly installed horizontally corresponding to the two first shafts, and the tin bar is movably clamped between the corresponding two material guide wheels, and a tin-breaking protrusion is integrally formed on the outside of the material guide wheel, and the tin-breaking protrusion is movably clamped in the tin bar.

[0011] Preferably, a second shaft is rotatably mounted at the bottom of the third frame, a first gear is fixedly mounted at the top position on one end of the first shaft away from the transmission gear, a second gear is fixedly mounted on the side of the second shaft close to the first gear, and the second gear is meshingly connected with the first gear.

[0012] Preferably, a third shaft is fixedly installed on the end of one of the guide shafts on the first frame, a fourth shaft is rotatably installed on the side of the first frame close to the third shaft, a third gear is fixedly installed on the end of the third shaft, a fourth gear is fixedly installed on the end of the fourth shaft, and the fourth gear is meshingly connected with the third gear.

[0013] Preferably, bevel gears are fixedly mounted on opposite ends of the second shaft and the fourth shaft, and the two bevel gears are meshingly connected.

[0014] Preferably, the feeding mechanism includes two groups of symmetrically distributed feeding side frames, the feeding side frames are fixedly mounted on the top of the base, feeding rollers are rotatably mounted on the top of the feeding side frames, and feeding belts are provided on the outer movable sleeves of the two feeding rollers. A second motor is fixedly mounted on one side of the feeding side frame, and the driving end of the second motor and one end of the corresponding feeding roller are fixedly mounted.

[0015] Preferably, the second shaft is fixedly mounted at one end away from the bevel gear and at an end of one of the feed rollers.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By setting up a material guiding mechanism and using a tin guiding mechanism in combination, a plurality of first components and a second component are driven to be synchronously and intermittently and slowly transmitted, and the plurality of first components and a second component are intermittently and slowly transported to a welding mechanism in turn for automatic welding processing, thereby improving the overall welding efficiency and welding quality of the thermistor chip and reducing damage to the staff.

[0018] 2. By setting up a tin guide mechanism, the tin bar is driven to be indirectly and slowly transferred, and the end of the tin bar is intermittently transferred to the welding base for cutting and welding.

[0019] 3. By setting up a tin guide mechanism, while the tin bar is indirectly and slowly transmitted, the tin-breaking protrusion is movably inserted into the tin bar, and the tin bar is synchronously tin-breaking and punched, thereby reducing the tin beads splashing when the tin bar is soldered at the connection position of the first component and the second component, affecting the welding effect of the first component and the second component.

[0020] 4. By setting up a feeding mechanism, after the first component and the second component are automatically connected by soldering, they continue to be transferred to the top of the feeding mechanism and fall on the feeding belt, and the thermistor chip after soldering is automatically unloaded, and the thermistor chip is indirectly transferred by the feeding belt to other locations for subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the present invention.

[0023] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle.

[0024] Figure 3 It is a structural schematic diagram of the material guiding mechanism and the tin guiding mechanism in the present invention.

[0025] Figure 4 For the present invention Figure 3 Enlarged view of point B in the middle.

[0026] Figure 5 For the present invention Figure 3 Enlarged view of point C in the middle.

[0027] Figure 6 It is a structural schematic diagram of the tin-conducting mechanism in the present invention.

[0028] Figure 7 For the present invention Figure 6 Enlarged view of point D in the middle.

[0029] Figure 8 For the present invention Figure 7 Enlarged view of point E in the middle.

[0030] Fig. 9 It is a structural schematic diagram of the welding mechanism in the present invention.

[0031] Fig.10 It is a structural schematic diagram of the feeding mechanism in the present invention.

[0032] Fig.11 For the present invention Fig.10 Enlarged view of point F in the middle.

[0033] In the figure: 1, base; 2, material guide mechanism; 3, tin guide mechanism; 4, welding mechanism; 5, material feeding mechanism; 6, first component; 61, second component; 7, third shaft; 71, third gear; 72, fourth shaft; 721, fourth gear; 73, bevel gear; 21, first rack; 211, material guide shaft; 212, material guide sprocket; 213, material guide chain; 214, first rack; 22, second rack; 221, second rack; 23, common drive shaft; 31, tin guide bracket; 32, third rack; 33, tin guide frame; 34, tin guide tube; 35, The first shaft; 351, guide wheel; 352, tin-breaking protrusion; 353, transmission gear; 36, tin bar; 37, second shaft; 371, second gear; 372, first gear; 41, welding outer frame; 42, first cross frame; 421, first rack; 43, second cross frame; 431, second rack; 44, welding head; 441, first fixed frame; 45, welding base; 451, second fixed frame; 46, driving gear; 461, driving shaft; 47, first motor; 51, feed side frame; 52, feed roller; 53, feed belt; 54, second motor. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example: Figure 1-11 As shown, the present invention provides a thermistor chip welding device, comprising a base 1, a material guide mechanism 2 is fixedly installed on one side of the top of the base 1, a welding mechanism 4 is fixedly installed on the other side of the top of the base 1, a material feeding mechanism 5 is provided between the material guide mechanism 2 and the welding mechanism 4, and a tin guide mechanism 3 is fixedly installed on one side of the top of the base 1 close to the welding mechanism 4;

[0036] The material guiding mechanism 2 comprises two symmetrically distributed groups of first frames 21 and two symmetrically distributed groups of second frames 22. The first frames 21 and the second frames 22 are fixedly mounted on one side of the top of the base 1. A material guiding shaft 211 is rotatably mounted on the top of each group of the first frames 21 and the second frames 22. Both ends of the material guiding shaft 211 are fixedly mounted with material guiding sprocket wheels 212. The outer side of the material guiding sprocket wheel 212 at the same end position on the material guiding shaft 211 is meshedly connected with a material guiding chain 213. A plurality of evenly distributed first racks 214 are fixedly installed between the two material guide chains 213, and a plurality of evenly distributed second racks 221 are fixedly installed between the two material guide chains 213 at the position of the second rack 22. The first rack 214 is provided with a first component 6 in an active card, and the second rack 221 is provided with a second component 61 in an active card. A co-drive shaft 23 is provided between the first rack 21 and the second rack 22, and the two ends of the co-drive shaft 23 are respectively connected to the first rack 21 and the second rack 22. The guide shaft 211 on the mounting plate is fixedly installed. When in use, the first component 6 is placed in the corresponding first rack 214 in sequence, and the second component 61 is placed in the corresponding second rack 221 in sequence, and the connecting parts of the first component 6 and the second component 61 are contacted. By controlling one of the guide shafts 211 on the first rack 21 to rotate intermittently and slowly, and cooperating with the connection of the co-drive shaft 23, one of the guide shafts 211 on the second rack 22 is driven to rotate intermittently and slowly synchronously, thereby controlling the guide sprockets 212 on the first rack 21 and the second rack 22 to transmit intermittently and slowly synchronously, thereby driving multiple first racks 214 and second racks 221 to transmit intermittently and slowly synchronously, thereby synchronously driving multiple first components 6 and second components 61 to transmit intermittently and slowly synchronously, and sequentially transporting multiple first components 6 and second components 61 intermittently and slowly to the welding mechanism 4 for subsequent welding processing, thereby improving the overall welding efficiency and welding quality of the thermistor chip and reducing damage to the staff.

[0037] The welding mechanism 4 includes a welding outer frame 41, which is fixedly installed on the top of the base 1, and is located between the first frame 21 and the second frame 22. The top sliding card of the welding outer frame 41 is provided with a first cross frame 42, and the bottom sliding card of the welding outer frame 41 is provided with a second cross frame 43. One end of the first cross frame 42 extends out of the outside of the welding outer frame 41 and is provided with a welding head 44. A first fixed frame 441 is fixedly installed on the outside of the welding head 44. The first fixed frame 441 is connected to one end of the welding head 44 away from the welding head 44. A cross frame 42 is fixedly installed, one end of the second cross frame 43 extends out of the outside of the welding outer frame 41 and is provided with a welding base 45, a second fixing frame 451 is fixedly installed on the outside of the welding base 45, and the second fixing frame 451 is fixedly installed on the second cross frame 43 at one end away from the welding base 45; a first rack 421 is vertically installed at the bottom end of the first cross frame 42, and the first rack 421 movably penetrates the second cross frame 43, and a second rack 431 is vertically installed at the top end of the second cross frame 43, and the second rack 431 movably penetrates the first The cross frame 42, the first rack 421 and the second rack 431 are meshed with a driving gear 46, the middle of the driving gear 46 is fixedly installed with a driving shaft 461, and the driving shaft 461 is rotatably installed in the middle of the welding outer frame 41; the outer wall of the welding outer frame 41 is fixedly installed with a first motor 47 on one side close to the driving shaft 461, and the driving end of the first motor 47 is fixedly installed with one end of the driving shaft 461. When welding is used, the first motor 47 is controlled to start to drive the driving shaft 461 and the driving gear 46 to rotate, thereby driving the first rack 4 21. The second rack 431 moves toward each other synchronously, thereby controlling the first cross frame 42 and the second cross frame 43 to move toward each other synchronously, thereby synchronously driving the welding head 44 to move downward and the welding base 45 to move upward. The welding base 45 presses against the connection between the first component 6 and the second component 61 at the corresponding position from below, and at the same time, the welding head 44 presses against the connection between the first component 6 and the second component 61 at the corresponding position from above. The welding head 44 melts the cut tin bar 36 placed in the welding base 45, and automatically solders the connection between the first component 6 and the second component 61.

[0038] The tin guide mechanism 3 includes a tin guide bracket 31, which is fixedly installed at the side end of the first bracket 21. Two third brackets 32 are fixedly installed on the side of the top of the tin guide bracket 31 close to the welding mechanism 4. The top of each of the third brackets 32 is fixedly installed with a tin guide outer frame 33. A tin guide tube 34 is vertically installed in the middle of the tin guide outer frame 33. A tin bar 36 is provided in the movable card of the tin guide tube 34. Two symmetrically distributed guide wheels 351 are provided in the movable card of the tin guide outer frame 33. The end of the tin guide tube 34 away from the tin guide outer frame 33 contacts the side end of the welding base 45. A first shaft 35 is fixedly installed in the middle of the guide wheel 351, one end of the first shaft 35 extends out of the outside of the tin guide outer frame 33 and is fixedly installed with a transmission gear 353, two transmission gears 353 are meshed and connected, the first shaft 35 is rotatably installed on the tin guide outer frame 33, and the horizontal corresponding two first shafts 35 are fixedly installed, the first shaft 35 at the top position rotates intermittently and slowly, and cooperates with the meshing connection of the two transmission gears 353 to drive the first shaft 35 at the bottom position to rotate intermittently and slowly, thereby controlling the two guide wheels 351 in the tin guide outer frame 33 to rotate intermittently and slowly;

[0039] The tin bar 36 is movably clamped between the two corresponding guide wheels 351, and the outer side of the guide wheel 351 is integrally formed with a tin-breaking protrusion 352, and the tin-breaking protrusion 352 is movably clamped in the tin bar 36. When the two guide wheels 351 rotate intermittently and slowly, the tin bar 36 is driven to be indirectly and slowly transmitted, and the end of the tin bar 36 is intermittently transmitted to the welding base 45. Since the end of the tin guide tube 34 away from the tin guide outer frame 33 contacts the side end of the welding base 45, the tin bar 36 is cut at the contact end surface of the welding base 45 and the tin guide tube 34 through the upward movement of the welding base 45. The end of the tin bar 36 is cut on the welding base 45, which is convenient for the subsequent melting of the end of the tin bar 36 to automatically solder the connection between the first component 6 and the second component 61;

[0040] At the same time, by setting the tin-breaking protrusion 352, the tin-breaking protrusion 352 is movably inserted into the tin bar 36 while the tin bar 36 is indirectly and slowly transmitted, and the tin bar 36 is synchronously tin-broken and punched, thereby reducing the tin beads splashing when the tin bar 36 is welded to the connection position of the first component 6 and the second component 61, affecting the welding effect of the first component 6 and the second component 61.

[0041] A second shaft 37 is rotatably installed at the bottom of the third frame 32, and a first gear 372 is fixedly installed at one end of the first shaft 35 at the top position away from the transmission gear 353, and a second gear 371 is fixedly installed on the side of the second shaft 37 close to the first gear 372. The second gear 371 is meshingly connected with the first gear 372, and the second shaft 37 intermittently rotates to drive the second gear 371 to drive the first gear 372, and the first shaft 35 at the top position rotates intermittently and slowly synchronously.

[0042] The third shaft 7 is fixedly installed on the end of one of the guide shafts 211 on the first frame 21, and a fourth shaft 72 is rotatably installed on the side of the first frame 21 close to the third shaft 7, a third gear 71 is fixedly installed on the end of the third shaft 7, and a fourth gear 721 is fixedly installed on the end of the fourth shaft 72, and the fourth gear 721 is meshingly connected with the third gear 71; the opposite ends of the second shaft 37 and the fourth shaft 72 are fixedly installed with bevel gears 73, and the two bevel gears 73 are meshingly connected, and the second shaft 37 intermittently rotates to cooperate with the meshing connection of the two bevel gears 73, driving the fourth shaft 72 and the fourth gear 721 to drive the third gear 71 and the third shaft 7 to rotate synchronously and intermittently slowly, thereby controlling one of the guide shafts 211 on the first frame 21 to rotate intermittently and slowly.

[0043] The feeding mechanism 5 includes two groups of symmetrically distributed feeding side frames 51, the feeding side frames 51 are fixedly installed on the top of the base 1, and feeding rollers 52 are rotatably installed on the top of the feeding side frames 51. The outer sides of the two feeding rollers 52 are movably sleeved with feeding belts 53. A second motor 54 is fixedly installed on one side of the feeding side frame 51, and the driving end of the second motor 54 and one end of the corresponding feeding roller 52 are fixedly installed. When in use, the second motor 54 is controlled to start and drive the corresponding feeding roller 52 to rotate indirectly, thereby driving the feeding belt 53 to perform indirect transmission.

[0044] The end of the second shaft 37 away from the bevel gear 73 and the end of one of the feed rollers 52 are fixedly installed, and the feed roller 52 intermittently rotates while driving the second shaft 37 to rotate synchronously and intermittently.

[0045] Working principle: When in use, the second motor 54 is controlled to start driving the corresponding feed roller 52 to rotate indirectly, driving the feed belt 53 to perform indirect transmission;

[0046] The intermittent rotation of the feeding roller 52 drives the second shaft 37 to rotate intermittently synchronously. The intermittent rotation of the second shaft 37 cooperates with the meshing connection of the two bevel gears 73 to drive the fourth shaft 72 and the fourth gear 721 to drive the third gear 71 and the third shaft 7 to rotate intermittently and slowly synchronously, thereby controlling one of the guide shafts 211 on the first rack 21 to rotate intermittently and slowly, and cooperates with the connection of the co-drive shaft 23 to drive one of the guide shafts 211 on the second rack 22 to rotate intermittently and slowly synchronously, thereby controlling the guide sprockets 212 on the first rack 21 and the second rack 22 to transmit intermittently and slowly synchronously, thereby driving the multiple first racks 214 and the second racks 221 to transmit intermittently and slowly synchronously;

[0047] The second shaft 37 rotates intermittently to drive the second gear 371 to drive the first gear 372, and the first shaft 35 at the top position rotates intermittently and slowly synchronously, and cooperates with the meshing connection of the two transmission gears 353 to drive the first shaft 35 at the bottom position to rotate intermittently and slowly, thereby controlling the two guide wheels 351 in the tin guide outer frame 33 to rotate intermittently and slowly, driving the tin bar 36 to be indirectly and slowly transmitted, and the end of the tin bar 36 is intermittently transmitted to the welding base 45;

[0048] The first components 6 are sequentially placed in the corresponding first racks 214, and the second components 61 are sequentially placed in the corresponding second racks 221, and the connection parts of the first components 6 and the second components 61 are brought into contact, and the first racks 214 and the second racks 221 are synchronously and intermittently and slowly driven, thereby synchronously driving the first components 6 and the second components 61 to be synchronously and intermittently and slowly driven, and the first components 6 and the second components 61 are sequentially and intermittently and slowly transported to the welding mechanism 4 for subsequent welding processing;

[0049] When the first component 6 and the second component 61 are transported to the welding mechanism 4, the first motor 47 is controlled to start to drive the driving shaft 461 and the driving gear 46 to rotate, thereby driving the first rack 421 and the second rack 431 to move toward each other synchronously, and then controlling the first cross frame 42 and the second cross frame 43 to move toward each other synchronously, thereby synchronously driving the welding head 44 to move downward and the welding base 45 to move upward;

[0050] Since the end of the tin guide tube 34 away from the tin guide outer frame 33 contacts the side end of the welding base 45, the welding base 45 moves upward, and the tin bar 36 is cut at the contact end surface of the welding base 45 and the tin guide tube 34. The end of the tin bar 36 is cut on the welding base 45, which is convenient for the subsequent melting of the end of the tin bar 36 to automatically solder the connection between the first component 6 and the second component 61;

[0051] The soldering base 45 abuts against the connection between the first component 6 and the second component 61 at the corresponding position from below, and the soldering head 44 abuts against the connection between the first component 6 and the second component 61 at the corresponding position from above, and the soldering head 44 melts the cut tin strip 36 placed in the soldering base 45, and automatically solders the connection between the first component 6 and the second component 61;

[0052] After the first component 6 and the second component 61 are automatically connected by soldering, they are continuously transported to the top of the feeding mechanism 5 and fall onto the feeding belt 53, where the thermistor chip is automatically unloaded after the soldering connection, and the thermistor chip is indirectly transported by the feeding belt 53 to other locations for subsequent processing.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermistor chip welding device, comprising a base (1), characterized in that: A material guiding mechanism (2) is fixedly mounted on one side of the top of the base (1), a welding mechanism (4) is fixedly mounted on the other side of the top of the base (1), a material feeding mechanism (5) is provided between the material guiding mechanism (2) and the welding mechanism (4), and a tin guiding mechanism (3) is fixedly mounted on one side of the top of the base (1) close to the welding mechanism (4); The material guide mechanism (2) comprises two symmetrically distributed groups of first frames (21) and two symmetrically distributed groups of second frames (22), the first frames (21) and the second frames (22) being fixedly mounted on one side of the top end of the base (1), a material guide shaft (211) being rotatably mounted on the top of each group of the first frames (21) and the second frames (22), both ends of the material guide shaft (211) being fixedly mounted with material guide sprockets (212), the outer sides of the material guide sprockets (212) at the same end position on the material guide shaft (211) being meshedly connected with material guide chains (213), and the two material guide chains (213) at the position of the first frame (21) being engaged with each other. A plurality of evenly distributed first racks (214) are fixedly installed between the first rack (21) and the second rack (213); a plurality of evenly distributed second racks (221) are fixedly installed between the two material guide chains (213) at the position of the second rack (22); a movable card in the first rack (214) is provided with a first component (6); a movable card in the second rack (221) is provided with a second component (61); a co-drive shaft (23) is provided between the first rack (21) and the second rack (22); two ends of the co-drive shaft (23) are respectively fixedly installed with the material guide shafts (211) on the first rack (21) and the second rack (22); The tin guide mechanism (3) comprises a tin guide bracket (31), the tin guide bracket (31) is fixedly mounted on the side end of the first bracket (21), two third brackets (32) are fixedly mounted on the top of the tin guide bracket (31) close to the welding mechanism (4), the top of each of the third brackets (32) is fixedly mounted with a tin guide outer frame (33), a tin guide tube (34) is vertically mounted in the middle of the tin guide outer frame (33), a tin bar (36) is provided in the movable card in the tin guide outer frame (33), and two material guide wheels (351) are symmetrically distributed, and the material guide wheels (35 1) is fixedly installed with a first shaft (35) in the middle part, one end of the first shaft (35) extends out of the outside of the tin guide outer frame (33) and is fixedly installed with a transmission gear (353), the two transmission gears (353) are meshed and connected, the first shaft (35) is rotatably installed on the tin guide outer frame (33), the horizontal corresponding two first shafts (35) are fixedly installed, the tin bar (36) is movably clamped between the corresponding two guide wheels (351), the outer side of the guide wheel (351) is integrally formed with a tin breaking protrusion (352), and the tin breaking protrusion (352) is movably clamped in the tin bar (36).

2. The thermistor chip welding device according to claim 1, characterized in that: The welding mechanism (4) comprises a welding outer frame (41), the welding outer frame (41) is fixedly mounted on the top of the base (1), the welding outer frame (41) is located between the first frame (21) and the second frame (22), the top sliding card of the welding outer frame (41) is provided with a first cross frame (42), the bottom sliding card of the welding outer frame (41) is provided with a second cross frame (43), one end of the first cross frame (42) extends out of the outside of the welding outer frame (41) and is provided with a welding head (44), the welding A first fixing frame (441) is fixedly mounted on the outer side of the joint (44); one end of the first fixing frame (441) away from the welding head (44) is fixedly mounted on the first cross frame (42); one end of the second cross frame (43) extends out of the outer side of the welding outer frame (41) and is provided with a welding base (45); a second fixing frame (451) is fixedly mounted on the outer side of the welding base (45); one end of the second fixing frame (451) away from the welding base (45) is fixedly mounted on the second cross frame (43).

3. The thermistor chip welding device according to claim 2, characterized in that: A first rack (421) is vertically mounted on the bottom end of the first horizontal frame (42), and the first rack (421) movably passes through the second horizontal frame (43); a second rack (431) is vertically mounted on the top end of the second horizontal frame (43), and the second rack (431) movably passes through the first horizontal frame (42); a driving gear (46) is meshedly connected between the first rack (421) and the second rack (431); a driving shaft (461) is fixedly mounted in the middle of the driving gear (46), and the driving shaft (461) is rotatably mounted in the middle of the welded outer frame (41).

4. The thermistor chip welding device according to claim 3, characterized in that: A first motor (47) is fixedly mounted on one side of the outer wall of the welding outer frame (41) close to the driving shaft (461), and a driving end of the first motor (47) and one end of the driving shaft (461) are fixedly mounted.

5. The thermistor chip welding device according to claim 1, characterized in that: A second shaft (37) is rotatably mounted at the bottom of the third frame (32); a first gear (372) is fixedly mounted at one end of the first shaft (35) away from the transmission gear (353) at the top position; a second gear (371) is fixedly mounted at one side of the second shaft (37) close to the first gear (372); the second gear (371) is meshingly connected with the first gear (372).

6. The thermistor chip welding device according to claim 5, characterized in that: A third shaft (7) is fixedly mounted on the end of one of the material guide shafts (211) on the first frame (21); a fourth shaft (72) is rotatably mounted on a side of the first frame (21) close to the third shaft (7); a third gear (71) is fixedly mounted on the end of the third shaft (7); a fourth gear (721) is fixedly mounted on the end of the fourth shaft (72); and the fourth gear (721) is meshingly connected with the third gear (71).

7. The thermistor chip welding device according to claim 6, characterized in that: Conical gears (73) are fixedly mounted on opposite ends of the second shaft (37) and the fourth shaft (72), and the two conical gears (73) are meshed and connected.

8. The thermistor chip welding device according to claim 7, characterized in that: The feeding mechanism (5) comprises two groups of symmetrically distributed feeding side frames (51), wherein the feeding side frames (51) are fixedly mounted on the top of the base (1), feeding rollers (52) are rotatably mounted on the top of the feeding side frames (51), and feeding belts (53) are movably sleeved on the outer sides of the two feeding rollers (52), and a second motor (54) is fixedly mounted on one side of the feeding side frames (51), and a driving end of the second motor (54) is fixedly mounted on one end of the corresponding feeding roller (52).

9. The thermistor chip welding device according to claim 8, characterized in that: The end of the second shaft (37) away from the bevel gear (73) and the end of one of the feed rollers (52) are fixedly mounted.

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