Welding auxiliary device

Abstract

The utility model discloses an auxiliary welding device which comprises a bottom plate and a plurality of groups of positioning structures, each group of positioning structures comprises two iron sheet positioning parts and a sensor positioning part, the sensor positioning part comprises two limiting parts and a blocking part, and when two detection rods of a heat-sensitive sensor are respectively arranged in the two limiting parts, the two detection rods of the heat-sensitive sensor are blocked by the blocking part. The other ends of the two detection rods are attached to the iron sheets arranged in the two iron sheet positioning parts respectively, and the wrapping shell of the heat-sensitive sensor abuts against the blocking part. The welding auxiliary device has the advantages that the heat-sensitive sensor is positioned through the two limiting parts and the blocking part, accurate positioning of the heat-sensitive sensor can be achieved, it is guaranteed that the heat-sensitive sensor can be accurately fixed to a preset position in the welding process, and the welding quality is guaranteed. Therefore, the problem that a conventional tool is difficult to accurately position the special-shaped heat-sensitive sensor is solved, the welding deviation is effectively reduced, the welding quality is improved, the defective rate is reduced, and meanwhile the welding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding auxiliary tool technical field, concretely relates to a welding auxiliary device. BACKGROUND

[0002] The heat-sensitive sensor is a sensitive element that can convert temperature changes into electrical signal changes, and plays a crucial role in many fields. It is widely used in industrial automation control, smart home, medical equipment and automotive electronics industries for accurate measurement and monitoring of environmental temperature or object temperature.

[0003] A heat-sensitive sensor comprises two detection rods, which are arranged in a relative inclined state and are fixedly connected at one end. A sheath is also fixed on one of the detection rods. In actual production, an iron sheet needs to be welded at the end of each detection rod to meet the use requirements of the heat-sensitive sensor.

[0004] However, the heat-sensitive sensor has a special shape, and the detection rods are arranged in a relative inclined state, which is different from the common regular-shaped workpiece. This makes it difficult for conventional welding auxiliary tools to accurately position the heat-sensitive sensor. During welding, it is difficult to accurately position the iron sheet at the appropriate position of the heat-sensitive sensor, which may cause deviation during welding, resulting in poor welding effect. This not only affects product quality, but also increases the rate of defective products. In addition, due to the difficulty in positioning, more time and effort are required to adjust the position of the heat-sensitive sensor, which greatly reduces the welding efficiency and increases the production cost, making it unsuitable for large-scale industrial production. SUMMARY

[0005] The utility model aims to overcome the above technical defects and provide a welding auxiliary device to solve the technical problems of poor welding effect, low efficiency and increased production cost caused by the special shape of the heat-sensitive sensor and the difficulty in accurately positioning the heat-sensitive sensor with conventional welding auxiliary tools.

[0006] To achieve the above technical purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of welding auxiliary device, for thermosensor and iron sheet welding auxiliary, the thermosensor includes two detection rods, two The detection rod is oppositely inclined, and one end of both is fixed, and one The detection rod is fixed with cladding, the welding auxiliary device includes bottom plate and several groups of positioning structure, each group of positioning structure is set on The bottom plate, and it includes two iron sheet positioning parts and a sensor positioning part, The sensor positioning part includes two limiting parts and a blocking part, when two The limiting part is respectively placed into the two detection rods of a thermosensor, the other end of two The detection rod is respectively attached to the iron sheet built-in in two The iron sheet positioning part, and the cladding of the thermosensor is in contact with The blocking part.

[0008] In some embodiments, the iron sheet includes a welding portion and an iron sheet body connected to each other, the iron sheet body is used to be built into the iron sheet positioning part, and the welding portion is used to be attached to the other end of the detection rod.

[0009] In some embodiments, the iron sheet positioning part is an iron sheet positioning groove, the iron sheet positioning groove is opened on the bottom plate, and the iron sheet body is used to be built into the iron sheet positioning groove.

[0010] In some embodiments, a transverse groove perpendicular to and communicating with the iron sheet positioning groove is also opened on the bottom plate, when the iron sheet body is built into the iron sheet positioning groove, one end of the iron sheet body away from the welding portion is in contact with the inner side wall of the transverse groove.

[0011] In some embodiments, a strip-shaped groove is also opened on the bottom plate, a heat insulation plate is installed in the strip-shaped groove, and the welding portion is used to be placed on the heat insulation plate.

[0012] In some embodiments, the heat insulation plate is a synthetic stone heat insulation plate.

[0013] In some embodiments, the limiting part includes a plurality of limiting plates, a plurality of limiting grooves are opened on the limiting plate, and the detection rod is used to be built into the limiting groove.

[0014] In some embodiments, every adjacent two limiting grooves are oppositely inclined.

[0015] In some embodiments, the welding auxiliary device further includes a plurality of magnets, the magnets are fixed on the bottom plate and correspond to each group of positioning structure one by one, and the two detection rods of the thermosensor built into each positioning structure can be magnetically connected with the magnets.

[0016] In some embodiments, a plurality of fixing holes are opened on the bottom plate, and each magnet is fixed in the corresponding fixing hole one by one.

[0017] Compared with the prior art, the welding auxiliary device has the beneficial effects that: through the multiple sets of positioning structures arranged on the bottom plate, the multiple thermal sensors and the iron sheets are accurately positioned at appropriate relative positions respectively, and the fitting precision of the two in each set of welding is ensured; meanwhile, the thermal sensors are positioned through the two limiting parts and the blocking part, accurate positioning of the thermal sensors can be realized, the thermal sensors can be accurately fixed at the predetermined positions in the welding process, the problem that the conventional tooling is difficult to accurately position the special-shaped thermal sensor is solved, welding deviation is effectively reduced, welding quality is improved, the rate of defective products is reduced, and welding efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective structural schematic view of the welding auxiliary device provided by an embodiment of the utility model;

[0019] Figure 2 is Figure 1 is a local enlarged view of the area A in

[0020] Figure 3 is Figure 1 is an explosion view of the welding auxiliary device in

[0021] Mark explanation: 1-welding auxiliary device, 11-bottom plate, 111-iron sheet positioning part, 112-sensor positioning part, 1121-limiting part, 11211-limiting plate, 112111-limiting groove, 1122-blocking part, 113-cross groove, 114-bar slot, 115-fixing hole, 12-heat insulation plate, 13-magnet, 2-thermal sensor, 21-detection rod, 22-cladding, 3-iron sheet, 31-welding part, 32-iron sheet main body. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0023] In order to solve the technical problems that the conventional welding auxiliary tooling is difficult to accurately position the special-shaped thermal sensor in the prior art, and then leads to poor welding effect, low efficiency and increased production cost, the utility model provides a welding auxiliary device, which can adapt to the special structure of the existing thermal sensor, ensure that the thermal sensor can be accurately fixed at the predetermined position in the welding process, thereby effectively reducing the welding deviation, improving the welding quality and reducing the rate of defective products.

[0024] Please refer to Figure 1 and Figure 2 ,Figure 1 It is the structure diagram of the welding auxiliary device 1 in an embodiment of the utility model, welding auxiliary device 1 is used for the welding auxiliary of heat sensor 2 and iron sheet 3, the heat sensor 2 includes two detection rods 21, two detection rods 21 are oppositely inclined to set, and one end of two is fixed to each other, and one detection rod 21 is fixed with the sheath 22.

[0025] The welding auxiliary device 1 includes bottom plate 11 and several groups of positioning structure, each group of positioning structure is set on the bottom plate 11, and includes two iron sheet positioning parts 111 and a sensor positioning part 112, the sensor positioning part 112 includes two limiting parts 1121 and a blocking part 1122, when two limiting parts 1121 are respectively placed into two detection rods 21 of a heat sensor 2, the other end of two detection rods 21 is respectively attached to the iron sheet 3 placed in two iron sheet positioning parts 111, and the sheath 22 of heat sensor 2 is in contact with the blocking part 1122.

[0026] In use, first, prepare enough number of heat sensors 2 to be welded and iron sheet 3. The bottom plate 11 of the welding auxiliary device 1 is placed in a suitable working position, and the welding equipment is prepared. Since the bottom plate 11 is formed with several groups of positioning structure, and each group of positioning structure contains two iron sheet positioning parts 111. Place multiple iron sheets 3 in the iron sheet positioning parts 111 of each group of positioning structure on the bottom plate 11, complete the positioning and placing work of all iron sheets 3. Then, pick up multiple heat sensors 2, and place two detection rods 21 of each heat sensor 2 into two limiting parts 1121 of the sensor positioning part 112 of each group of positioning structure respectively. At the same time, the sheath 22 of each heat sensor 2 will be in contact with the blocking part 1122 of the sensor positioning part 112 of the corresponding group of positioning structure. In this state, the other end of two detection rods 21 of each heat sensor 2 will be respectively attached to the iron sheet 3 placed in two iron sheet positioning parts 111 of the corresponding group of positioning structure. Thus, the positioning work of all heat sensors 2 on the welding auxiliary device 1 is completed. When all heat sensors 2 and iron sheets 3 are positioned on the welding auxiliary device 1, use the welding equipment to sequentially weld the attachment parts of the detection rods 21 of each group of positioned heat sensors 2 and the iron sheets 3 according to a certain order, to realize the connection and fixation of the two.

[0027] The utility model provides big technical scheme, through being provided with a plurality of positioning structure on bottom plate 11, including iron sheet positioning portion 111, sensor positioning portion 112, can accurately position multiple thermal sensor 2 and iron sheet 3 respectively in suitable relative position, has guaranteed the fitting accuracy of both when each group welds, simultaneously, thermal sensor 2 is positioned through two limit portion 1121 and blocking portion 1122, can realize accurate positioning to thermal sensor 2, ensure that thermal sensor can be accurately fixed in predetermined position in the welding process, thereby solve the problem that the conventional tooling is difficult to accurately position special-shaped thermal sensor 2, effectively reduce the welding deviation, improve the welding quality, reduce the rate of defective products, improve welding efficiency simultaneously.

[0028] In one embodiment, please refer to Figure 1 And Figure 2 The iron sheet 3 includes a welding portion 31 and an iron sheet body 32 connected to each other, the iron sheet body 32 is used to be placed in the iron sheet positioning portion 111, and the welding portion 31 is used to be placed in the other end of the detection rod 21. In this embodiment, the iron sheet body 32 and the iron sheet positioning portion 111 are designed to match, so that the iron sheet 3 can be quickly and accurately positioned when placed, and fit in the predetermined position. This effectively avoids the problem of position deviation during welding due to unstable placement or position deviation of the iron sheet, provides a stable foundation for subsequent welding, ensures the accuracy of the welding position, and improves the yield of the welding.

[0029] In one embodiment, please refer to Figure 1 And Figure 2 The iron sheet positioning portion 111 is an iron sheet positioning groove, the iron sheet positioning groove is opened on the bottom plate 11, and the iron sheet body 32 is used to be placed in the iron sheet positioning groove. In this embodiment, the iron sheet positioning portion 111 is designed as an iron sheet positioning groove opened on the bottom plate 11, which is matched with the shape of the iron sheet body 32. When the iron sheet body 32 is placed therein, it can be limited in all directions by the groove wall, so as to realize accurate positioning. This positioning method avoids displacement, shaking and other situations of the iron sheet during welding, so that the fitting position of the welding portion 31 and the detection rod 21 always remains accurate, greatly reduces the welding deviation, effectively improves the welding quality, and reduces the rate of defective products.

[0030] In one embodiment, please refer to Figure 1 And Figure 2The bottom plate 11 is further provided with a horizontal groove 113 which is perpendicular to and communicates with the iron sheet positioning groove. When the iron sheet body 32 is placed in the iron sheet positioning groove, the end of the iron sheet body 32 away from the welding portion 31 abuts against the inner side wall of the horizontal groove 113. In this embodiment, the horizontal groove 113 which is perpendicular to and communicates with the iron sheet positioning groove provides additional positioning constraint for the iron sheet body 32. When the iron sheet body 32 is placed in the iron sheet positioning groove, the end of the iron sheet body 32 away from the welding portion 31 abuts against the inner side wall of the horizontal groove 113, so that the iron sheet is two-dimensionally positioned in the horizontal direction. Compared with the iron sheet positioning groove alone, the positioning precision is significantly improved, so that the welding portion 31 can be accurately attached to the detection rod 21, effectively reducing the welding deviation and further improving the welding quality.

[0031] In one embodiment, as shown in Figure 1 and Figure 2 , the bottom plate 11 is further provided with a strip-shaped groove 114 in which a heat insulation plate 12 is installed, and the welding portion 31 is used to be placed on the heat insulation plate 12. The installation of the heat insulation plate 12 in the strip-shaped groove 114 can effectively block the high heat generated during welding. The heat generated during welding is usually high, and if it is directly conducted to the bottom plate 11, it may cause the deformation and damage of the bottom plate 11, affecting the overall structure and positioning precision of the device. The heat insulation plate 12 separates the welding portion 31 from the bottom plate 11, avoiding heat transfer, prolonging the service life of the welding auxiliary device, and reducing the maintenance cost and downtime due to equipment damage.

[0032] In one embodiment, as shown in Figure 1 and Figure 2 , the heat insulation plate 12 is a synthetic stone heat insulation plate.

[0033] In one embodiment, as shown in Figure 1 and Figure 2 , the limiting portion 1121 includes a plurality of limiting plates 11211, and a plurality of limiting grooves 112111 are formed in the limiting plates 11211, in which the detection rod 21 is placed. In this embodiment, the limiting grooves 112111 formed in the limiting plates 11211 can be customized according to the detection rod 21 in size and shape. When the detection rod 21 is placed in the limiting grooves 112111, it can be constrained in all directions by the limiting grooves, thereby achieving high-precision positioning. This solves the problem of difficult accurate positioning of the heat-sensitive sensor due to the irregular shape, ensures that the detection rod 21 can be accurately attached to the welding portion 31 of the iron sheet 3, effectively reduces the welding deviation, significantly improves the welding quality, and reduces the rate of defective products.

[0034] In one embodiment, as shown in Figure 1 and Figure 2Each pair of adjacent limiting grooves 112111 are arranged at an angle relative to each other, so that they can be used for the inclined arrangement structure of the two detection rods 21 of the thermal sensor 2.

[0035] In one embodiment, please refer to Figures 1-3 The blocking part 1122 is the side wall of the base plate 11.

[0036] In one embodiment, please refer to Figure 1 and Figure 2 The welding auxiliary device 1 further includes several magnets 13, which are fixed to the base plate 11 and correspond one-to-one with each set of positioning structures. The two detection rods 21 of the thermal sensor 2 embedded in each positioning structure can be magnetically connected to the magnets 13. In this embodiment, the magnets 13 correspond one-to-one with the positioning structures. When the detection rod 21 of the thermal sensor 2 is placed into the positioning structure, it can be magnetically connected to the magnets 13. During the welding process, the detection rod 21 is attracted by magnetic force and firmly fixed in the positioning position. This additional magnetic fixing method, compared to relying solely on the limiting structure, can better resist external interference, ensuring that the thermal sensor 2 remains stable throughout the welding process, effectively preventing displacement, and greatly improving the stability of the welding process.

[0037] In one embodiment, please refer to Figures 1-3 The base plate 11 has a plurality of fixing holes 115, and each magnet 13 is fixed in the corresponding fixing hole 115.

[0038] To better understand this utility model, the following is combined with... Figures 1 to 3 The technical solution of this utility model is described in detail as follows: First, prepare the iron sheet 3. Since the iron sheet 3 is composed of an interconnected welded part 31 and an iron sheet body 32, align the iron sheet body 32 with the iron sheet positioning part 111 on the base plate 11. Here, the iron sheet positioning part 111 is an iron sheet positioning groove formed on the base plate 11. Place the iron sheet body 32 into the iron sheet positioning groove. At the same time, the end of the iron sheet body 32 away from the welded part 31 will abut against the inner side wall of the transverse groove 113 that is perpendicular to and connected to the iron sheet positioning groove, thereby accurately positioning and fixing the iron sheet 3 in the horizontal direction. Next, place the two detection rods 21 of the thermal sensor 2 into the limiting grooves 112111 of the limiting part 1121, and make its shell 22 abut against the blocking part 1122, thus completing the positioning of the thermal sensor 2 in the sensor positioning part 112. At this point, the other end of the detection rod 21 is attached to the welding part 31 of the iron sheet 3. Simultaneously, the two detection rods 21 are magnetically connected to the magnet 13, further stabilizing the position of the thermal sensor 2. Subsequently, the individual thermal sensors 2 and the iron sheet 3 are welded together after being fixed in position.

[0039] In summary, the utility model provides big technical scheme, through setting up in the bottom plate 11 multiple sets of positioning structure, including iron sheet positioning portion 111, sensor positioning portion 112, can accurately with multiple thermal sensor 2 and iron sheet 3 respectively position in suitable relative position, has guaranteed the fitting accuracy of both when each group welds, simultaneously, thermal sensor 2 is positioned through two limit portion 1121 and blocking portion 1122, can realize accurate positioning to thermal sensor 2, ensure that thermal sensor can be accurately fixed in the predetermined position in the welding process, to solve the problem that the conventional tooling is difficult to accurately position the special-shaped thermal sensor 2, effectively reduce the welding deviation, improve the welding quality, reduce the rate of defective products, improve the welding efficiency simultaneously.

[0040] The above-described specific embodiments of the utility model do not constitute a limitation on the scope of protection of the utility model. Any other corresponding changes and modifications made in accordance with the technical concept of the utility model should be included within the scope of protection of the utility model claims.

Claims

1. A welding auxiliary device for hot wire welding of a hot wire sensor with a metal sheet, the hot wire sensor comprising two detection rods, the two detection rods being oppositely inclined and fixed at one end, one of the detection rods being fixed with a sheath, characterized in that, The welding auxiliary device comprises: a bottom plate; a positioning structure, a plurality of groups of the positioning structure are arranged on the bottom plate, each group of the positioning structure comprises two iron sheet positioning portions and a sensor positioning portion, the sensor positioning portion comprises two limiting portions and a blocking portion, when two detection rods of a heat-sensitive sensor are respectively arranged in the two limiting portions, the other ends of the two detection rods are respectively attached to iron sheets arranged in two iron sheet positioning portions, and the shell of the heat-sensitive sensor abuts against the blocking portion.

2. The welding aid of claim 1, wherein, The iron sheet comprises a welding portion and an iron sheet main body connected with each other, the iron sheet main body is arranged in the iron sheet positioning portion, and the welding portion is arranged to be attached to the other end of the detection rod.

3. The welding aid of claim 2, wherein, The iron sheet positioning portion is an iron sheet positioning groove, the iron sheet positioning groove is arranged on the bottom plate, and the iron sheet main body is arranged in the iron sheet positioning groove.

4. The welding aid of claim 3, wherein, A transverse groove perpendicular to and communicating with the iron sheet positioning groove is arranged on the bottom plate, when the iron sheet main body is arranged in the iron sheet positioning groove, one end of the iron sheet main body away from the welding portion abuts against the inner side wall of the transverse groove.

5. The welding aid of claim 2, wherein, A strip-shaped groove is arranged on the bottom plate, a heat insulation plate is arranged in the strip-shaped groove, and the welding portion is arranged on the heat insulation plate.

6. The welding aid of claim 5, wherein, The heat insulation plate is a synthetic stone heat insulation plate.

7. The welding aid of claim 1, wherein, The limiting portion comprises a plurality of limiting plates, a plurality of limiting grooves are arranged on the limiting plate, and the detection rod is arranged in the limiting groove.

8. The welding aid of claim 7, wherein, Each adjacent two limiting grooves are arranged to be opposite and inclined.

9. The welding aid of claim 1, wherein, The welding auxiliary device further comprises a plurality of magnets, the magnets are fixed on the bottom plate and correspond to each group of the positioning structure, the two detection rods of the heat-sensitive sensor arranged in each positioning structure are magnetically connected with the magnets.

10. The welding aid of claim 9, wherein, A plurality of fixing holes are arranged on the bottom plate, and each magnet is fixed in the corresponding fixing hole.

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