A laser automatic welding device with a temperature sensor

Abstract

This invention belongs to the field of welding technology and relates to an automatic laser welding device for temperature sensors. It includes a fixture transfer unit for fixing the temperature sensor's ribbon cable and moving it along a preset direction; a shaping unit for shaping the connection between the temperature sensor's ribbon cable and the thermistor's pins on the fixture transfer unit; and a welding unit for welding the shaped connection between the temperature sensor's ribbon cable and the thermistor's pins. The advantages of this structure are: when welding multiple temperature sensors, the thermistor pins may be offset or have different heights, leading to welding instability and affecting yield; the shaping unit ensures that the pins of different products are protected at the same height during welding, minimizing the energy error of each weld point and thus guaranteeing a high yield.

Description

Technical Field

[0001] This invention belongs to the field of temperature sensor manufacturing technology, specifically, it relates to an automatic laser welding device for temperature sensors. Background Technology

[0002] In the precision manufacturing process of NTC (negative temperature coefficient) temperature sensors, the stable and reliable welding of high-sensitivity thermistors to precision wiring is a key step in building the core performance of the product.

[0003] Currently, manual welding is still widely used in this crucial process. However, manually welded products suffer from inconsistent quality, affecting yield rates. Furthermore, manual welding is relatively slow and inefficient, making it difficult to meet market demands for temperature sensors. Therefore, improvements are necessary. Summary of the Invention

[0004] To address the aforementioned problems in the prior art, the present invention provides a laser automatic welding device with a temperature sensor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] As one aspect of the present invention, a laser automatic welding device for a temperature sensor is proposed, comprising: a fixture transfer unit for fixing the ribbon cable of the temperature sensor and moving it along a preset direction; the fixture transfer unit includes a slide table, on which a plurality of sequentially arranged wire clamping fixtures are slidably connected, and the plurality of wire clamping fixtures move sequentially on the slide table; the wire clamping fixture includes a fixture body, the upper surface of the fixture body is provided with a plurality of ribbon cable grooves for installing the ribbon cable at intervals; a plurality of clamping mechanisms are provided on both sides of the fixture body, and each end of each ribbon cable groove corresponds to a clamping mechanism, the clamping mechanism clamping the ribbon cable in the ribbon cable groove;

[0007] The shaping unit shapes the connection between the ribbon cable of the temperature sensor and the pin of the thermistor on the fixture transfer unit.

[0008] The welding unit welds the connection points between the ribbon cable of the temperature sensor and the pins of the thermistor after the shaping unit has shaped it.

[0009] Furthermore, it also includes a clamping unit for clamping the cable of the temperature sensor; the clamping unit includes a first clamping plate and a second clamping plate arranged opposite to each other, the first clamping plate and the second clamping plate being movably connected to the clamping support frame; the clamping support frame is provided with a clamping power unit, and the first clamping plate and the second clamping plate are respectively connected to the movable end of the clamping power unit;

[0010] The end faces of the first clamping plate and the second clamping plate respectively form clamping bosses. The two clamping bosses move relative to each other and together clamp the cable.

[0011] Furthermore, it also includes a clamping unit that clamps the cable of the temperature sensor held by the clamping unit; the clamping unit includes a clamping bracket, and a clamping power unit is connected to the clamping bracket; the movable end of the clamping power unit is connected to a second pressure plate.

[0012] Furthermore, the clamping mechanism includes a clamping connecting post, a clamping seat, a clamping claw, and a first elastic element that are connected to or integrally formed with the fixture body. The clamping seat has a clamping seat connecting through hole, and the clamping claw has a clamping claw connecting through hole. A clamping claw mounting space is formed on the clamping seat, and the clamping claw is movably disposed within the clamping claw mounting space of the clamping seat. The first elastic element connects the clamping seat and the clamping claw, and the clamping claw is located within the clamping claw mounting space. At this time, the center line of the clamping seat connecting through hole coincides with the center line of the clamping claw connecting through hole. Then, the clamping seat and the clamping claw are movably mounted on the clamping connecting post together. The clamping claw can rotate relative to the clamping connecting post.

[0013] The claw has a hook and a handle; there is a preset interval between two adjacent claws, which facilitates the operation of the handle of the claw; the hook, under the action of the first elastic element, locks the cable in the cable tray; the side of the claw has a claw relief groove, and when the claw is placed in the claw installation space, the handle extends out of the claw relief groove to facilitate the operation of the handle by external force, so that the hook disengages from the cable.

[0014] Furthermore, the card holder and the card claw are respectively provided with a first mounting groove that cooperates with the first elastic element.

[0015] Furthermore, the fixture body has a card holder limiting groove adapted to the card holder, and the card holder limiting groove limits the card holder.

[0016] Furthermore, the fixture body is provided with a locking block, which engages with the upper surface of the card holder; the card holder is provided with a cable routing groove.

[0017] Furthermore, it also includes an unloading mechanism, which overcomes the elastic force of the first elastic element to lift the handle of the chuck, causing the hook to disengage from the cable tray; the unloading mechanism cooperates with a corresponding cable clamping fixture.

[0018] The unloading mechanism includes a top plate, the upper part of which forms a top handle. The top handle moves up and down within a preset interval between two adjacent card seats, and the top handle is located below the handle of the corresponding card claw. When the top handle moves upward, the top handle lifts the handle of the card claw upward, the first elastic element is compressed, and the hook rotates around the locking connecting column as a fulcrum. The lower part of the top plate is connected to the movable end of the unloading power unit.

[0019] Furthermore, the shaping unit includes a shaping support frame, on which a first shaping plate and a second shaping plate are movably connected at intervals. The first shaping plate and the second shaping plate are arranged opposite to each other, and the first shaping plate and the second shaping plate are close to or far apart on the shaping support frame.

[0020] The first shaping plate is connected to the movable end of the first power unit located on the shaping support frame;

[0021] The second shaping plate is connected to the movable end of the second power unit provided on the shaping support frame; shaping bosses are respectively formed on the end face of the first shaping plate and the end face of the second shaping plate;

[0022] The shaping unit further includes a first pressing mechanism, which presses the cable on the wire clamping fixture; the first pressing mechanism includes a first pressure plate, which is movably connected to the shaping support frame; the first pressure plate is connected to the movable end of the third power unit provided on the shaping support frame.

[0023] Furthermore, the welding unit includes an X robotic arm module, a Y robotic arm module, a Z robotic arm module, and a welder. The fixed part of the Y robotic arm module is connected to the movable part of the X robotic arm module, the fixed part of the Z robotic arm module is connected to the movable part of the Y robotic arm module, and the welder is connected to the movable part of the Z robotic arm module.

[0024] The laser automatic welding equipment for temperature sensors of the present invention has the following advantages: When welding multiple temperature sensors, the pins of each thermistor may be offset or have different heights, which will lead to welding instability and affect the yield. Through the cooperation of the shaping unit, clamping unit and pressing unit, the pins of different products are protected at the same height during welding, ensuring that the energy error of each weld point is minimized, thereby ensuring the yield. Through the cooperation of the clamping mechanism and the unloading mechanism, the placement and fixing of the products are more convenient and the equipment is more practical. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0026] Figure 1 This is a schematic diagram of the structure of the laser automatic welding equipment for the temperature sensor of the present invention;

[0027] Figure 2 This is a schematic diagram of the structure of the jig transplanting unit of the present invention;

[0028] Figure 3This is an exploded view of the jig transfer unit of the present invention;

[0029] Figure 4 This is a bottom view of the wire clamping fixture of the present invention;

[0030] Figure 5 This is a front view of the wire clamping fixture of the present invention;

[0031] Figure 6 This is a side view of the wire clamping fixture of the present invention;

[0032] Figure 7 for Figure 5 Partial schematic diagram at point A in the middle;

[0033] Figure 8 for Figure 6 Partial schematic diagram at point B in the middle;

[0034] Figure 9 This is an exploded view of the clamping mechanism of the present invention;

[0035] Figure 10 This is a reference diagram showing the state of the unloading mechanism of the present invention;

[0036] Figure 11 This is a three-dimensional structural view of the unloading mechanism of the present invention;

[0037] Figure 12 This is a three-dimensional structural view of the shaping unit of the present invention;

[0038] Figure 13 This is a state reference diagram of the shaping unit of the present invention;

[0039] Figure 14 This is a front view of the welding unit structure of the present invention;

[0040] Figure 15 This is a side view of the welding unit structure of the present invention;

[0041] Figure 16 This is a three-dimensional structural view of the clamping unit of the present invention;

[0042] Figure 17 This is a state reference diagram of the clamping unit of the present invention;

[0043] Figure 18 This is a three-dimensional structural view of the clamping unit of the present invention;

[0044] Explanation of reference numerals in the attached figures:

[0045] 1-Jig transfer unit; 11-Slide table; 12-Wire clamping jig; 121-Jig body; 122-Jig protrusion; 123-Wire routing groove; 124-Clamping mechanism; 1241-Clamping connecting post; 1242-Clamping seat; 1243-Clamping claw; 1244-Clamping seat connecting through hole; 1245-Clamping claw connecting through hole; 1246-Clamping claw mounting space; 1247-First elastic element; 1248-Clamping hook; 1249-Handle; 12410-Clamping seat clearance groove; 12411-First mounting groove; 12412-Clamping seat limiting groove; 12413-Clamping block; 12414-Wire routing clearance groove; 125-Unloading mechanism; 1251-Top plate; 1252-Top handle; 1253-Unloading power unit;

[0046] 2-Shaping unit; 21-Shaping support frame; 22-First shaping plate; 23-Second shaping plate; 24-First power unit; 25-Second power unit; 26-First guide sleeve; 27-First guide rod; 28-First guide rail; 29-First slider; 210-First pressing mechanism; 211-Shaping boss; 2101-First pressure plate; 2102-Third power unit; 2103-Second guide sleeve; 2104-Second guide rod;

[0047] 3-Welding unit; 31-X robotic arm module; 32-Y robotic arm module; 33-Z robotic arm module; 34-Welder;

[0048] 4-Temperature sensor; 41-Ribbon cable; 42-Thermistor;

[0049] 5-Clamping unit; 51-First clamping plate; 52-Second clamping plate; 53-Clamping support frame; 54-Clamping power unit; 55-Second guide rail; 56-Second slider; 57-Second guide rod; 58-Second guide sleeve; 59-Clamping boss; 510-Clamping limiting plate; 511-Limiting plate power unit;

[0050] 6-Pressure unit; 61-Pressure bracket; 62-Pressure power unit; 63-Second pressure plate; 64-Third guide sleeve; 65-Third guide rod. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0052] One embodiment of this application provides a laser automatic welding device for a temperature sensor, such as... Figures 1-3As shown, it includes: a fixture transfer unit 1, used to fix the ribbon cable 41 of the temperature sensor 4 and move it along a preset direction; it should be noted that when the ribbon cable 41 of the temperature sensor 4 and the thermistor 42 are installed on the fixture transfer unit 1, the connection end of the ribbon cable 41 of the temperature sensor 4 and the pin of the corresponding thermistor 42 are pre-connected, so that the pin of the thermistor 42 and the connection end of the corresponding ribbon cable 41 are in a connected state. This is the prior art and will not be described in detail.

[0053] Shaping unit 2 shapes the connection between the connection end of the ribbon cable 41 of the temperature sensor 4 and the pin of the thermistor 42 on the fixture transfer unit 1.

[0054] Welding unit 3 welds the connection between the connector of the ribbon cable 41 of the temperature sensor 4 and the pin of the thermistor 42 after the shaping unit 2. It should be noted that the structure of the connector of the ribbon cable 41 of the temperature sensor 4 and the thermistor 42 is existing technology and will not be described in detail here. The focus of this embodiment is: how to weld the connector of the ribbon cable 41 of the temperature sensor 4 and the pin of the thermistor 42.

[0055] In one embodiment, such as Figure 1 As shown, it also includes a clamping unit 5 to clamp the ribbon cable 41 of the temperature sensor 4, which facilitates the welding of the welding unit 3.

[0056] In one embodiment, such as Figure 1 and Figure 3 As shown, it also includes a clamping unit 6, which clamps the ribbon cable 41 of the temperature sensor 4 held by the clamping unit 5, so that the connection end of the ribbon cable 41 can be soldered to the pin of the corresponding thermistor 42.

[0057] Specifically, such as Figures 3-6 As shown, the jig transfer unit 1 includes a slide table 11, on which a plurality of wire clamping jigs 12 are slidably connected. The plurality of wire clamping jigs 12 move sequentially on the slide table 11. The wire clamping jigs 12 travel on the slide table 11 at a preset speed and reach a preset work position. It should be noted that the way the wire clamping jigs 12 travel on the slide table 11 is the prior art and will not be described in detail here. The wire clamping jig 12 includes a jig body 121. The bottom of the jig body 121 is provided with a jig protrusion 122 that is adapted to the slide table 11. The jig protrusion 122 cooperates with the slide table 11 to make the wire clamping jig 12 more stable when it moves on the slide table 11.

[0058] The upper surface of the fixture body 121 is provided with a plurality of cable trays 123 for mounting cables 41 at intervals. The connecting end of the cable 41 extends to the outside of the cable tray 123 to facilitate its soldering with the pins of the corresponding thermistor 42.

[0059] The fixture body 121 has several clamping mechanisms 124 on both sides of its long side. Each end of each cable tray 123 corresponds to a clamping mechanism 124. The clamping mechanism 124 clamps and fixes the cable 41 in the cable tray 123.

[0060] Furthermore, such as Figures 7-9 As shown, the clamping mechanism 124 includes a clamping connecting post 1241, a clamping seat 1242, a clamping claw 1243, and a first elastic element 1247, which are connected to or integrally formed with the fixture body 121. The clamping seat 1242 has a clamping seat connecting through hole 1244, and the clamping claw 1243 has a clamping claw connecting through hole 1245. The clamping seat 1242 has a clamping claw mounting space 1246, and the clamping claw 1243 is movably disposed in the clamping claw mounting space 1246 of the clamping seat 1242. Within 246, the first elastic element 1247 is a spring, which is connected between the card holder 1242 and the claw 1243. The claw 1243 is located within the claw mounting space 1246. At this time, the center line of the card holder connecting through hole 1244 coincides with the center line of the claw connecting through hole 1245. Then, the card holder 1242 and the claw 1243 are movably mounted on the clamping connecting post 1241. The claw 1243 can rotate relative to the clamping connecting post 1241.

[0061] The claw 1243 has a hook portion 1248 and a handle portion 1249. Under the action of the first elastic member 1247, the hook portion 1248 locks the ribbon cable 41 on the ribbon cable groove 123. The side of the card seat 1242 has a card seat clearance groove 12410. When the claw 1243 is located in the claw installation space 1246, the handle portion 1249 extends out of the card seat clearance groove 12410 to facilitate the operation of the handle portion 1249 by external force, so that the hook portion 1248 disengages from the ribbon cable 41 and removes the ribbon cable 41.

[0062] The card holder 1242 and the card claw 1243 are respectively provided with a first mounting groove 12411 that cooperates with the first elastic member 1247, making it easier to install the first elastic member 1247.

[0063] Furthermore, the fixture body 121 has a retainer limiting groove 12412 adapted to the retainer 1242. The retainer limiting groove 12412 limits the retainer 1242 to prevent the retainer 1242 from rotating and affecting the effect of the claw 1243.

[0064] Furthermore, the fixture body 121 is provided with a locking block 12413, which cooperates with the upper surface of the locking seat 1242 to further limit the locking seat 1242 on the locking seat limiting groove 12412.

[0065] Furthermore, the card holder 1242 is provided with a cable clearance groove 12414 for the cable 41 to make way, making its installation more convenient.

[0066] There is a preset interval between two adjacent card slots 1242, which facilitates the operation of the handle 1249 of the card claw 1243.

[0067] In one embodiment, such as Figure 10 As shown, it also includes an unloading mechanism 125, which overcomes the elastic force of the first elastic member 1247 to lift the handle 1249 of the claw 1243, so that the hook 1248 is freed from the restriction of the ribbon cable 41, making it convenient to place or remove the ribbon cable 41.

[0068] Specifically, such as Figures 10-11 As shown, the unloading mechanism 125 is located at the work station where material needs to be picked up or unloaded, and cooperates with the corresponding wire clamping fixture 12. The unloading mechanism 125 includes a top plate 1251, and a top handle 1252 is formed on the upper part of the top plate 1251. The top handle 1252 moves up and down within a preset interval between two adjacent card seats 1242, and the top handle 1252 is located below the handle part 1249 of the corresponding card claw 1243. When the top handle 1252 moves upward, the top handle 1252 lifts the handle part 1249 of the card claw 1243 upward, the first elastic element 1247 is compressed, and the hook part 1248 rotates with the clamping connecting column 1241 as the fulcrum, thereby detaching from the restraint on the ribbon cable 41.

[0069] The lower part of the top plate 1251 is connected to the movable end of the unloading power unit 1253. The unloading power unit 1253 is a cylinder or a motor, and its structure is existing technology, which will not be described in detail here. Through the operation of the unloading power unit 1253, the top handle 1252 of the top plate 1251 is lifted up with the corresponding handle 1249 to disengage the cable 41, or the handle 1249 is lifted up so that the hook 1248 is moved away from the cable clearance groove 12414, which facilitates the placement and installation of the cable 41.

[0070] In one embodiment, such as Figures 12-13 As shown, the shaping unit 2 includes a shaping support frame 21, on which a first shaping plate 22 and a second shaping plate 23 are movably connected at intervals. The first shaping plate 22 and the second shaping plate 23 are arranged opposite to each other, and the first shaping plate 22 and the second shaping plate 23 are close to or far apart on the shaping support frame 21.

[0071] The first shaping plate 22 is connected to the movable end of the first power unit 24 provided on the shaping support frame 21; the first power unit 24 is a cylinder or a motor, which is prior art and will not be described in detail here.

[0072] The second shaping plate 23 is connected to the movable end of the second power unit 25 located on the shaping support frame 21; the second power unit 25 is a cylinder or a motor, which is existing technology and will not be described in detail here; under the operation of the first power unit 24, the first shaping plate 22 and the second shaping plate 23 move relative to each other, and together shape the connection between the connection end of the ribbon cable 41 of the temperature sensor 4 on the jig transfer unit 1 and the pin of the thermistor 42, so as to facilitate the uniformity of subsequent welding.

[0073] Furthermore, shaping bosses 211 are formed on the end face of the first shaping plate 22 and the end face of the second shaping plate 23, respectively. The two shaping bosses 211 move relative to each other and work together at the connection point between the connection end of the ribbon cable 41 of the temperature sensor 4 and the pin of the thermistor 42, resulting in a good shaping effect.

[0074] Furthermore, a first guide sleeve 26 is connected to the shaping support frame 21, and a first guide rod 27 that is slidably connected to the first guide sleeve 26 is connected to the first shaping plate 22, making the movement of the first shaping plate 22 more stable.

[0075] Furthermore, a first guide rail 28 is connected to the shaping support frame 21, and a first slider 29 is connected to the second shaping plate 23 and slidably connected to the first guide rail 28, so that the second shaping plate 23 moves more smoothly.

[0076] Furthermore, such as Figure 12 As shown, the shaping unit 2 further includes a first pressing mechanism 210, which presses the wire 41 on the wire clamping fixture 12 to prevent the wire 41 from shifting due to the shaping force during shaping. The first pressing mechanism 210 includes a first pressure plate 2101, which is movably connected to the shaping support frame 21. The first pressure plate 2101 is connected to the movable end of a third power unit 2102 provided on the shaping support frame 21. The third power unit 2102 is a cylinder or a motor, which is existing technology and will not be described in detail here. A second guide sleeve 2103 is connected to the shaping support frame 21, and a second guide rod 2104 that is slidably connected to the second guide sleeve 2103 is connected to the first pressure plate 2101 to make the movement of the first pressure plate 2101 more stable.

[0077] In one embodiment, such as Figures 14-15As shown, the welding unit 3 includes an X-arm module 31, a Y-arm module 32, a Z-arm module 33, and a welder 34. The fixed part of the Y-arm module 32 is connected to the movable part of the X-arm module 31, and the fixed part of the Z-arm module 33 is connected to the movable part of the Y-arm module 32. The welder 34 is connected to the movable part of the Z-arm module 33. The structures of the X-arm module 31, Y-arm module 32, and Z-arm module 33 are all existing technologies and will not be discussed further here. To elaborate further; the welder 34 is a laser, and its structure is existing technology, so it will not be described in detail here; as an example, there are two lasers and two Z robotic arm modules 33, with one laser corresponding to one Z robotic arm module 33, which improves welding efficiency; there are two X robotic arm modules 31, with the fixed part of the second X robotic arm module 31 connected to the movable part of the first X robotic arm module 31, which increases the welding range. At this time, the fixed part of the Y robotic arm module 32 is connected to the movable part of the second X robotic arm module 31.

[0078] Because the energy stability of the laser at the start and end points is poor, triggering the laser in front of the welding position and using the stable laser energy in the middle section for welding can effectively improve the welding yield of laser. Continuous laser welding commonly uses a polarizing mirror method to achieve continuous light output. However, due to the polarization angle, laser energy can concentrate at the contact area between the thermistor pins and the cable core, causing the thermistor pins to break. The optimal direction is for the laser welding head to be positioned directly above the cable core, melting the copper core into a liquid state and then covering the thermistor pins for the best welding effect. By using a oscillating laser welding head, the X-arm module 31, Y-arm module 32, and Z-arm module 33 move and set the laser output frequency, which is determined by the product being welded. This is a common technique in the field and will not be elaborated further. During the movement of the laser welding head driven by the X-arm module 31, Y-arm module 32, and Z-arm module 33, the laser energy is output vertically downward throughout the process, enabling simultaneous welding of multiple products within the area, thus changing the conventional single-point welding method.

[0079] When soldering multiple products, the leads of each thermistor may be offset or have different heights, leading to soldering instability and affecting yield. To address this, a primary shaping and secondary correction mechanism ensures that the leads of different thermistors are protected at the same height during soldering, minimizing energy error at each solder joint and thus guaranteeing a high yield rate.

[0080] In one embodiment, such as Figures 16-17As shown, the clamping unit 5 clamps the ribbon cable 41 on the wire clamping fixture 12 at a preset position, facilitating the welding work of the welding unit 3. The clamping unit 5 includes a first clamping plate 51 and a second clamping plate 52 arranged opposite to each other, and the first clamping plate 51 and the second clamping plate 52 are respectively movably connected to the clamping support frame 53. The clamping support frame 53 is provided with a clamping power unit 54, and the first clamping plate 51 and the second clamping plate 52 are respectively connected to the movable end of the clamping power unit 54. The clamping power unit 54 is a cylinder or a motor, which is existing technology and will not be described in detail here. As an example, in this embodiment, the clamping power unit 54 is a double-headed cylinder, and the first clamping plate 51 and the second clamping plate 52 are respectively connected to the corresponding movable end of the double-headed cylinder. The clamping power unit 54 drives the first clamping plate 51 and the second clamping plate 52 to move relative to each other or towards each other. When the first clamping plate 51 and the second clamping plate 52 move relative to each other, they clamp the ribbon cable 41. When the first clamping plate 51 and the second clamping plate 52 move towards each other, they release the ribbon cable 41.

[0081] Furthermore, the clamping support frame 53 is provided with a longitudinally arranged second guide rail 55, and the first clamping plate 51 and the second clamping plate 52 are respectively provided with a second slider 56 that is slidably connected to the second guide rail 55, so that the first clamping plate 51 and the second clamping plate 52 run more smoothly.

[0082] Furthermore, the first clamping plate 51 is provided with a second guide rod 57, and the second clamping plate 52 is provided with a second guide sleeve 58 that is slidably connected to the second guide rod 57, further enhancing the smooth movement between the first clamping plate 51 and the second clamping plate 52.

[0083] Furthermore, the end faces of the first clamping plate 51 and the second clamping plate 52 respectively form clamping bosses 59, and the two clamping bosses 59 move relative to each other to clamp the ribbon cable 41 together.

[0084] Furthermore, clamping limit plates 510 are respectively provided on both sides of the clamping support frame 53. The clamping limit plates 510 are located between the first clamping plate 51 and the second clamping plate 52 to prevent excessive clamping by the first clamping plate 51 and the second clamping plate 52, which would affect the placement of the ribbon cable 41. The clamping limit plates 510 are connected to the movable end of the limit plate power part 511 connected to the clamping support frame 53. The limit plate power part 511 is a cylinder or a motor, which is existing technology and will not be described in detail here. The thickness of the clamping limit plates 510 is slightly smaller than the diameter of the ribbon cable 41, so that the first clamping plate 51 and the second clamping plate 52 can clamp the ribbon cable 41 without damaging the ribbon cable 41.

[0085] In one embodiment, such as Figure 18 As shown, it also includes a clamping unit 6, which clamps the ribbon cable 41 held by the clamping unit 5 to further strengthen the straightening of the corresponding ribbon cable 41 and prevent it from deforming.

[0086] Specifically, the clamping unit 6 includes a clamping bracket 61, on which a clamping power unit 62 is connected. The clamping power unit 62 is a cylinder or a motor, the structure of which is existing technology and will not be described in detail here. The movable end of the clamping power unit 62 is connected to a second pressure plate 63. A third guide sleeve 64 is connected to the clamping bracket 61. A third guide rod 65 is connected to the second pressure plate 63 and slidably connected to the third guide sleeve 64, so that the second pressure plate 63 moves more smoothly.

[0087] In summary, when welding multiple temperature sensors, the laser automatic welding equipment of this application may have offsets or differences in height of the pins of each thermistor, which will lead to welding instability and affect the yield. By coordinating the shaping unit, clamping unit and pressing unit, the pins of different products are protected at the same height during welding, ensuring that the energy error of each weld point is minimized, thereby guaranteeing the yield.

[0088] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0089] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0090] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0091] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A laser automatic welding device with a temperature sensor, characterized in that, It includes: jigs The transplanting unit (1) is used to fix the ribbon cable (41) of the temperature sensor (4) and move it along a preset direction; the jig transplanting unit (1) includes a slide table (11), on which a plurality of wire clamping jigs (12) are slidably connected, and the plurality of wire clamping jigs (12) move sequentially on the slide table (11); the wire clamping jig (12) includes a jig body (121), and the upper surface of the jig body (121) is provided with a plurality of ribbon cable grooves (123) for installing the ribbon cable (41) at intervals; a plurality of clamping mechanisms (124) are provided on both sides of the jig body (121), and each end of each ribbon cable groove (123) corresponds to a clamping mechanism (124), and the clamping mechanism (124) clamps the ribbon cable (41) in the ribbon cable groove (123); The shaping unit (2) shapes the connection between the connection end of the ribbon cable (41) of the temperature sensor (4) on the jig transfer unit (1) and the pin of the thermistor (42). The shaping unit (2) includes a shaping support frame (21), on which a first shaping plate (22) and a second shaping plate (23) are movably connected at intervals. The first shaping plate (22) and the second shaping plate (23) are arranged opposite to each other, and the first shaping plate (22) and the second shaping plate (23) are close to or far apart on the shaping support frame (21). The first shaping plate (22) is connected to the movable end of the first power unit (24) provided on the shaping support frame (21); The second shaping plate (23) is connected to the movable end of the second power unit (25) provided on the shaping support frame (21); the end face of the first shaping plate (22) and the end face of the second shaping plate (23) are respectively formed with shaping bosses (211). The shaping unit (2) further includes a first pressing mechanism (210), which presses the cable (41) on the wire clamping fixture (12); the first pressing mechanism (210) includes a first pressure plate (2101), which is movably connected to the shaping support frame (21); the first pressure plate (2101) is connected to the movable end of the third power unit (2102) provided on the shaping support frame (21); The welding unit (3) welds the connection between the connection end of the ribbon cable (41) of the temperature sensor (4) after it has been shaped by the shaping unit (2) and the pin of the thermistor (42). It also includes a clamping unit (5) for clamping the cable (41) of the temperature sensor (4); the clamping unit (5) includes a first clamping plate (51) and a second clamping plate (52) arranged opposite to each other, the first clamping plate (51) and the second clamping plate (52) being movably connected to the clamping support frame (53); the clamping support frame (53) is provided with a clamping power unit (54), the first clamping plate (51) and the second clamping plate (52) being connected to the movable end of the clamping power unit (54); The end face of the first clamping plate (51) and the end face of the second clamping plate (52) respectively form clamping bosses (59). The two clamping bosses (59) move relative to each other and jointly clamp the ribbon cable (41). It also includes a clamping unit (6), which clamps the cable (41) of the temperature sensor (4) held by the clamping unit (5); the clamping unit (6) includes a clamping bracket (61), and a clamping power unit (62) is connected to the clamping bracket (61); the movable end of the clamping power unit (62) is connected to a second pressure plate (63).

2. The laser automatic welding equipment with a temperature sensor as described in claim 1, characterized in that, The clamping mechanism (124) includes a clamping connecting post (1241), a clamping seat (1242), a clamping claw (1243), and a first elastic element (1247) that are connected to or integrally formed with the fixture body (121). The clamping seat (1242) has a clamping seat connecting through hole (1244), the clamping claw (1243) has a clamping claw connecting through hole (1245), the clamping seat (1242) has a clamping claw mounting space (1246), and the clamping claw (1243) is movably disposed in the clamping seat (1242). Within the claw mounting space (1246), the first elastic element (1247) is connected between the card holder (1242) and the claw (1243), with the claw (1243) located within the claw mounting space (1246). At this time, the center line of the card holder connecting through hole (1244) coincides with the center line of the claw connecting through hole (1245). Then, the card holder (1242) and the claw (1243) are movably mounted on the clamping connecting post (1241). The claw (1243) can rotate relative to the clamping connecting post (1241). The claw (1243) has a hook portion (1248) and a handle portion (1249); there is a preset interval between two adjacent card seats (1242), which facilitates the operation of the handle portion (1249) of the claw (1243); under the action of the first elastic member (1247), the hook portion (1248) locks the ribbon cable (41) on the ribbon cable groove (123); the side of the card seat (1242) has a card seat relief groove (12410), when the claw (1243) is located in the claw installation space (1246), the handle portion (1249) passes through the card seat relief groove (12410) to facilitate the operation of the handle portion (1249) by external force, so that the hook portion (1248) disengages from the ribbon cable (41).

3. The laser automatic welding equipment with a temperature sensor as described in claim 2, characterized in that, The card holder (1242) and the card claw (1243) are respectively provided with a first mounting groove (12411) that cooperates with the first elastic member (1247).

4. The laser automatic welding equipment with a temperature sensor as described in claim 2, characterized in that, The fixture body (121) has a card holder limiting groove (12412) adapted to the card holder (1242), and the card holder limiting groove (12412) limits the card holder (1242).

5. The laser automatic welding equipment with a temperature sensor as described in claim 4, characterized in that, The fixture body (121) is provided with a locking block (12413), which engages with the upper surface of the locking seat (1242); the locking seat (1242) is provided with a cable routing groove (12414).

6. The laser automatic welding equipment with a temperature sensor as described in claim 2, characterized in that, It also includes an unloading mechanism (125), which overcomes the elastic force of the first elastic element (1247) to lift the handle (1249) of the claw (1243), so that the hook (1248) is released from the restriction on the cable (41); the unloading mechanism (125) cooperates with the corresponding clamping fixture (12); The unloading mechanism (125) includes a top plate (1251), and a top handle (1252) is formed on the upper part of the top plate (1251). The top handle (1252) moves up and down within a preset interval between two adjacent card seats (1242), and the top handle (1252) is located below the handle (1249) of the corresponding card claw (1243). When the top handle (1252) moves upward, the top handle (1252) lifts the handle (1249) of the card claw (1243) upward, the first elastic element (1247) is compressed, and the hook part (1248) rotates with the clamping connecting column (1241) as the fulcrum. The lower part of the top plate (1251) is connected to the movable end of the unloading power unit (1253).

7. The laser automatic welding equipment with a temperature sensor as described in claim 1, characterized in that, The welding unit (3) includes an X robotic arm module (31), a Y robotic arm module (32), a Z robotic arm module (33), and a welder (34). The fixed part of the Y robotic arm module (32) is connected to the movable part of the X robotic arm module (31), and the fixed part of the Z robotic arm module (33) is connected to the movable part of the Y robotic arm module (32). The welder (34) is connected to the movable part of the Z robotic arm module (33).

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