Rapid positioning clamp for welding of resistance strain type sensor

Abstract

The utility model relates to the technical field of positioning clamps, in particular to a rapid positioning clamp for welding of a resistance strain sensor. According to the technical scheme, the device comprises a bottom plate and further comprises an installation frame, the installation frame is fixedly installed on the bottom plate, a sliding plate is installed on the installation frame in a sliding mode, an installation table is fixedly installed on the bottom plate, sliding blocks are symmetrically installed on the two sides of the installation table in a sliding mode, connecting plates are hinged to the sliding blocks, and the connecting plates are hinged to the sliding plate. A supporting plate is fixedly installed at one end of the sliding block, a plurality of fixing blocks arranged at equal intervals are slidably installed on one side of the supporting plate, and one end of each fixing block is in an arc shape. According to the utility model, the sensors in different shapes are fixed, the welding positions of the sensors are quickly cooled, the welding failure caused by mistakenly touching uncooled soldering tin is avoided, and the cleanliness of the sensors during welding is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures, in particular to a resistance strain sensor welding rapid positioning fixture. Background Art

[0002] The sensor is a high-precision component that can be used to detect information such as displacement, speed, force and acceleration. The sensor component is often made of multiple materials and processed multiple times. The quality of the final sensor welding is directly related to the system accuracy and technical parameters of the entire sensor. Therefore, it is necessary to use corresponding positioning fixtures to accurately locate and fix the sensor position, so that the sensor can be more accurate and stable during the welding process.

[0003] During the welding process, solder is usually required to weld the welding points. Since welding requires high temperature to melt the solder so that the solder covers the welding points, the solder usually cools slowly and its liquid state lasts for a long time, thus delaying the hardening process of the solder. If other operations or accidental touches are performed before the welding point is completely hardened, the welding point may be displaced, damaged or deformed. Therefore, the present application proposes a resistive strain sensor welding quick positioning fixture. Summary of the invention

[0004] The utility model aims to solve the problem of slow cooling of solder at welding points in the background technology and proposes a resistance strain sensor welding fast positioning fixture.

[0005] The technical solution of the utility model is: a resistance strain sensor welding quick positioning fixture, including a bottom plate, and also includes:

[0006] A mounting frame, wherein the mounting frame is fixedly mounted on a bottom plate, a slide plate is slidably mounted on the mounting frame, a mounting platform is fixedly mounted on the bottom plate, sliders are symmetrically slidably mounted on both sides of the mounting platform, a connecting plate is hinged on the slider, the connecting plate is hinged to the slide plate, a support plate is fixedly mounted on one end of the slide plate, a plurality of fixed blocks arranged at equal distances are slidably mounted on one side of the support plate, one end of the fixed block is arranged in an arc shape, and a driving mechanism for driving the slide plate to move is arranged on the mounting frame;

[0007] The cooling and cleaning device is arranged on the bottom plate and is used for rapidly cooling and cleaning the welding part of the sensor during the welding process.

[0008] Optionally, the cooling and cleaning device includes a guide chamber slidably mounted on one side of the mounting platform, the guide chamber is a hollow cavity, a cylinder is fixedly mounted on the base plate, a piston rod of the cylinder is fixedly connected to one side of the guide chamber, an air outlet is provided on one side of the guide chamber, an air pipe is fixedly mounted on the bottom of the guide chamber, an air pump is fixedly mounted on the base plate, a cooling device is fixedly mounted on the base plate, the air pipe is connected to the air pump, the air pipe is connected to the cooling device, and an inclined guide groove is opened in the mounting platform.

[0009] Optionally, the driving mechanism includes a motor fixedly mounted on a mounting frame, a fixing frame fixedly mounted on the mounting frame, the fixing frame fixedly connected to the motor, a reciprocating screw fixedly mounted on an output shaft of the motor, and the reciprocating screw threadedly connected to the slide plate.

[0010] Optionally, slide grooves are provided on both sides of the mounting frame, and protrusions are fixedly installed on both sides of the slide plate, and the protrusions are located in the slide grooves.

[0011] Optionally, a guide groove is provided on the mounting platform, and both ends of the sliding block are located in the guide groove.

[0012] Optionally, a slot is provided on one side of the mounting platform, and the guide cavity is located in the slot.

[0013] Optionally, a plurality of springs arranged at equal distances are fixedly mounted on one side of the support plate, and one end of the spring is fixedly connected to the fixing block.

[0014] Optionally, a fixing plate is fixedly mounted on the base plate, and the fixing plate is fixedly connected to the cylinder.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] 1. By starting the motor, the output shaft of the motor drives the reciprocating screw to rotate. Since the slide plate is slidably connected to the mounting frame, the slide plate moves downward when the reciprocating screw rotates. The slide plate squeezes the slider on the connecting plate, so that the sliders on the mounting table are close to each other. The fixed block at one end of the slider squeezes the sensor, and the spring rebounds upon receiving the pressure, so that the squeezing block can always fit with the sensor, thereby fixing sensors of different shapes.

[0017] 2. By starting the air pump, the air flow cooled by the cooling device is transported to the guide cavity, and then discharged from the air outlet on one side of the guide cavity, so as to cool the sensor during welding and accelerate the cooling of the solder. At the same time, the solder slag produced by welding is blown into the guide groove and discharged, thereby accelerating the cooling of the sensor during welding, removing the solder slag produced by welding on the sensor surface, and improving the welding cleanliness.

[0018] The utility model realizes the fixation of sensors of different shapes, quickly cools the welding position of the sensor, avoids welding failure caused by accidental contact of uncooled solder, and improves the cleanliness of sensor welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of an embodiment of the utility model is given Figure 1 ;

[0020] Figure 2 A schematic diagram of the structure of an embodiment of the utility model is given Figure 2 ;

[0021] Figure 3 A schematic diagram of the structure of a motor, a reciprocating screw rod and a slide plate in one embodiment of the utility model is given;

[0022] Figure 4 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] Figure numerals: 1. base plate; 2. mounting frame; 3. connecting plate; 4. protrusion; 5. slide plate; 6. reciprocating screw rod; 7. motor; 8. fixing frame; 9. guide groove; 10. slide groove; 11. guide groove; 12. mounting table; 13. fixing block; 14. cylinder; 15. fixing plate; 16. guide cavity; 17. air pipe; 18. air pump; 19. cooling device; 20. notch; 21. slider; 22. support plate; 23. spring; 24. air outlet. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Example

[0026] like Figure 1-2 As shown, a resistive strain sensor welding quick positioning fixture proposed by the utility model comprises a base plate 1, and also comprises a mounting frame 2, the mounting frame 2 is fixedly mounted on the base plate 1, a slide plate 5 is slidably mounted on the mounting frame 2, a mounting platform 12 is fixedly mounted on the base plate 1, sliders 21 are symmetrically slidably mounted on both sides of the mounting platform 12, a connecting plate 3 is hinged on the slider 21, the connecting plate 3 is hinged to the slider 5, a support plate 22 is fixedly mounted on one end of the slider 21, a plurality of equidistantly arranged fixed blocks 13 are slidably mounted on one side of the support plate 22, one end of the fixed block 13 is arc-shaped, a driving mechanism for driving the slide plate 5 to move is arranged on the mounting frame 2, when the slide plate 5 moves downward, the slide plate 5 squeezes the connecting plate 3, the connecting plate 3 drives the slide plate 21 to move, and the slide plate 21 drives the fixed block 13 on the support plate 22 to fix sensors of different shapes;

[0027] Among them, the cooling and cleaning device is arranged on the base plate 1, and is used to quickly cool and clean the welding part of the sensor during the welding process to improve the welding efficiency.

[0028] like Figure 1-2 As shown, the present embodiment also includes a cooling and cleaning device, which includes a guide cavity 16 slidably mounted on one side of the mounting platform 12, the guide cavity 16 is a cavity setting, a cylinder 14 is fixedly mounted on the bottom plate 1, a piston rod of the cylinder 14 is fixedly connected to one side of the guide cavity 16, an air outlet 24 is provided on one side of the guide cavity 16, and is used to discharge air from the air outlet 24, an air pipe 17 is fixedly mounted on the bottom of the guide cavity 16, an air pump 18 is fixedly mounted on the bottom plate 1, and a cooling device 19 is fixedly mounted on the bottom plate 1 , used to cool the airflow, the air pipe 17 is connected to the air pump 18, the air pipe 17 is connected to the cooling device 19, an inclined guide groove 9 is opened in the mounting table 12, when the sensor needs to be cooled, the air pump 18 is started, the air pump 18 conveys the airflow cooled by the cooling device 19 to the guide cavity 16, the cylinder 14 is started, and the piston rod of the cylinder 14 drives the guide cavity 16 to reciprocate on the mounting table 12, the sensor welding is cooled, and the impurities generated by the welding are blown into the guide groove 9 and discharged.

[0029] like Figure 2-3 As shown, the present embodiment also includes a driving device, the driving mechanism includes a motor 7 fixedly mounted on the mounting frame 2, a fixing frame 8 is fixedly mounted on the mounting frame 2, the fixing frame 8 is fixedly connected to the motor 7, a reciprocating screw 6 is fixedly mounted on the output shaft of the motor 7, the reciprocating screw 6 is threadedly connected to the slide plate 5, when the motor 7 is started, the piston rod of the motor 7 drives the reciprocating screw 6 to rotate, so that the slide plate 5 on the reciprocating screw 6 can slide on the mounting frame 2.

[0030] like Figure 2-4 As shown, slide grooves 10 are provided on both sides of the mounting frame 2, and protrusions 4 are fixedly installed on both sides of the slide plate 5, and the protrusions 4 are located in the slide grooves 10. A guide groove 11 is provided on the mounting platform 12, and both ends of the slider 21 are located in the guide groove 11. A notch 20 is provided on one side of the mounting platform 12, and the guide cavity 16 is located in the notch 20. A plurality of springs 23 arranged at equal distances are fixedly installed on one side of the support plate 22, and one end of the spring 23 is fixedly connected to the fixed block 13. A fixed plate 15 is fixedly installed on the bottom plate 1, and the fixed plate 15 is fixedly connected to the cylinder 14.

[0031] Working principle: put the sensor to be welded on the mounting table 12, start the motor 7, when the motor 7 is started, the piston rod of the motor 7 drives the reciprocating screw 6 to rotate, so that the slide plate 5 on the reciprocating screw 6 can slide on the mounting frame 2, when the slide plate 5 moves downward, the slide plate 5 squeezes the connecting plate 3, the connecting plate 3 drives the slider 21 to move, the slider 21 drives the fixed block 13 on the support plate 22 to contact sensors of different shapes, the spring 23 rebounds under force, so that the fixed block 13 can always fit the sensor, start the air pump 18, the air pump 18 conveys the air flow cooled by the cooling device 19 into the guide cavity 16, start the cylinder 14, the piston rod of the cylinder 14 drives the guide cavity 16 to reciprocate on the mounting table 12, cools the sensor welding, and blows the impurities generated by the welding into the guide groove 9 and discharges them, realizes the fixation of sensors of different shapes, quickly cools the sensor welding point, avoids accidental contact with the uncooled solder causing welding failure, and improves the cleanliness of the sensor welding.

[0032] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A resistance strain sensor welding quick positioning fixture, comprising a base plate (1), characterized in that: Also includes: A mounting frame (2), wherein the mounting frame (2) is fixedly mounted on a base plate (1), a slide plate (5) is slidably mounted on the mounting frame (2), a mounting platform (12) is fixedly mounted on the base plate (1), slide blocks (21) are symmetrically slidably mounted on both sides of the mounting platform (12), a connecting plate (3) is hingedly mounted on the slide block (21), the connecting plate (3) is hingedly connected to the slide plate (5), a support plate (22) is fixedly mounted on one end of the slide block (21), a plurality of fixed blocks (13) arranged at equal distances are slidably mounted on one side of the support plate (22), one end of the fixed block (13) is arc-shaped, and a driving mechanism for driving the slide plate (5) to move is arranged on the mounting frame (2); A cooling and cleaning device is arranged on the bottom plate (1) and is used for rapidly cooling and cleaning the welding part of the sensor during the welding process.

2. A resistance strain sensor welding quick positioning fixture according to claim 1, characterized in that: The cooling and cleaning device comprises a guide chamber (16) slidably mounted on one side of a mounting platform (12); the guide chamber (16) is a hollow chamber; a cylinder (14) is fixedly mounted on the bottom plate (1); a piston rod of the cylinder (14) is fixedly connected to one side of the guide chamber (16); an air outlet (24) is provided on one side of the guide chamber (16); an air pipe (17) is fixedly mounted at the bottom of the guide chamber (16); an air pump (18) is fixedly mounted on the bottom plate (1); a cooling device (19) is fixedly mounted on the bottom plate (1); the air pipe (17) is connected to the air pump (18); the air pipe (17) is connected to the cooling device (19); and an inclined guide groove (9) is provided in the mounting platform (12).

3. A resistance strain sensor welding quick positioning fixture according to claim 1, characterized in that: The driving mechanism comprises a motor (7) fixedly mounted on a mounting frame (2), a fixing frame (8) fixedly mounted on the mounting frame (2), the fixing frame (8) being fixedly connected to the motor (7), a reciprocating screw rod (6) being fixedly mounted on the output shaft of the motor (7), and the reciprocating screw rod (6) being threadedly connected to the slide plate (5).

4. A resistance strain sensor welding quick positioning fixture according to claim 1, characterized in that: Slide grooves (10) are provided on both sides of the mounting frame (2), and protrusions (4) are fixedly installed on both sides of the slide plate (5), and the protrusions (4) are located in the slide grooves (10).

5. The resistive strain sensor welding quick positioning fixture according to claim 1, characterized in that: A guide groove (11) is provided on the mounting platform (12), and both ends of the sliding block (21) are located in the guide groove (11).

6. A resistance strain sensor welding quick positioning fixture according to claim 2, characterized in that: A notch (20) is provided on one side of the mounting platform (12), and the flow guide cavity (16) is located in the notch (20).

7. The resistance strain sensor welding quick positioning fixture according to claim 1, characterized in that: A plurality of springs (23) arranged at equal distances are fixedly mounted on one side of the support plate (22), and one end of the spring (23) is fixedly connected to the fixing block (13).

8. The resistance strain sensor welding quick positioning fixture according to claim 3, characterized in that: A fixing plate (15) is fixedly mounted on the base plate (1), and the fixing plate (15) is fixedly connected to the cylinder (14).

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