Auxiliary positioning mechanism of gas-sensitive smoke gas sensor

Abstract

The utility model relates to the field of smoke sensors, and discloses an auxiliary positioning mechanism of a gas-sensitive smoke gas sensor, which comprises a laser welding table, a laser welding device is arranged inside the laser welding table, a support frame is fixedly connected inside the laser welding table, a lifting device is arranged inside the support frame, and the lifting device is fixedly connected with the laser welding table. The outer side of the lifting device is fixedly connected with a protection box, a clamping device is arranged in the protection box, the outer side of the clamping device is fixedly connected with two clamping plates which are distributed in a bilateral symmetry mode, and the interior of the laser welding table is fixedly connected with a placing frame located above the clamping plates. And the outer side of the placing frame is fixedly connected with a fixing device. The auxiliary positioning mechanism of the gas-sensitive smoke gas sensor has the advantages that the smoke sensor can be fixed, and welding of the smoke sensor and a circuit board is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of smoke sensors, in particular to an auxiliary positioning mechanism for a gas-sensitive smoke gas sensor. Background Technique

[0002] A gas-sensitive smoke gas sensor is a sensor for detecting specific gases, which is widely used in gas leakage monitoring in fields such as homes and industries. It is usually based on semiconductor gas-sensitive elements, such as tin dioxide. At a certain temperature, the adsorption of these materials to specific gases will cause a change in their conductivity, so that the presence and concentration of gases can be detected. Gas-sensitive smoke gas sensors can be installed on circuit boards and usually exist in the form of modules, which can be conveniently integrated into various electronic devices and systems.

[0003] Since the outer appearance of the gas-sensitive smoke gas sensor is circular, when welding the smoke sensor on the circuit board, some fixing devices are not easy to fix the smoke sensor, resulting in the frequent deviation of the smoke sensor. And because the volume of the smoke sensor is small, if it is manually corrected, the efficiency is slow and it is easy to be dangerous during welding. Therefore, an auxiliary positioning mechanism for a gas-sensitive smoke gas sensor is proposed to solve the above problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides an auxiliary positioning mechanism for a gas-sensitive smoke gas sensor, which has the advantages of being able to fix the smoke sensor and facilitating the welding of the smoke sensor to the circuit board, and solves the problem that since the outer appearance of the gas-sensitive smoke gas sensor is circular, when welding the smoke sensor on the circuit board, some fixing devices are not easy to fix the smoke sensor, resulting in the frequent deviation of the smoke sensor. And because the volume of the smoke sensor is small, if it is manually corrected, the efficiency is slow and it is easy to be dangerous during welding.

[0006] (2) Technical Solution

[0007] The technical solution of the utility model to solve the above technical problems is as follows: An auxiliary positioning mechanism for a gas-sensitive smoke gas sensor includes a laser welding table, a laser welding device is arranged inside the laser welding table, a support frame is fixedly connected inside the laser welding table, a lifting device is arranged inside the support frame, a protective box is fixedly connected to the outside of the lifting device, a clamping device is arranged inside the protective box, two clamping plates are fixedly connected to the outside of the clamping device and are distributed symmetrically left and right, a placement frame is fixedly connected inside the laser welding table above the clamping plates, and a fixing device is fixedly connected to the outside of the placement frame.

[0008] The beneficial effects of the present utility model are as follows:

[0009] The auxiliary positioning mechanism of the gas-sensitive smoke gas sensor has the advantages of being able to fix the smoke sensor and facilitating the soldering of the smoke sensor to the circuit board.

[0010] On the basis of the above technical solution, the present utility model can be further improved as follows.

[0011] Further, the lifting device includes a first motor fixedly connected to the outside of the support frame. A threaded rod rotatably connected to the inside of the support frame is fixedly connected to the outside of the output shaft of the first motor. A first transmission block fixedly connected to the protective box is threadedly connected to the outside of the threaded rod.

[0012] The beneficial effect of adopting the above further solution is that it can drive the protective box to move up and down so that the clamping device can move the smoke sensor up and down.

[0013] Further, a sliding rod is fixedly connected to the inside of the laser soldering table. A slider slidably connected to the sliding rod is fixedly connected to the outside of the protective box.

[0014] The beneficial effect of adopting the above further solution is to assist the movement of the lifting device and stabilize the moving direction of the clamping device.

[0015] Further, the clamping device includes a second motor fixedly connected to the outside of the protective box. A left-right threaded rod rotatably connected to the inside of the protective box is fixedly connected to the outside of the output shaft of the second motor. Two second transmission blocks respectively fixedly connected to the two clamping plates are threadedly connected to the outside of the left-right threaded rod.

[0016] The beneficial effect of adopting the above further solution is that it can make the two clamping plates move in opposite directions to clamp and fix the smoke sensor.

[0017] Further, the opposite sides of the two clamping plates are both arc-shaped, and buffer pads are fixedly connected to the opposite surfaces of the two clamping plates.

[0018] The beneficial effect of adopting the above further solution is that it can make the clamping plates adapt to the size of the smoke sensor and make the fixation of the smoke sensor more stable.

[0019] Further, the fixing device includes an electric push rod fixedly connected to the bottom of the placement frame. A connecting plate is fixedly connected to the outside of the electric push rod. A baffle located in front of the placement frame is fixedly connected to the top of the connecting plate.

[0020] The beneficial effect of adopting the above further solution is that it can tightly fix the circuit board to prevent it from shifting and falling off during the welding process. Brief Description of the Drawings

[0021] Figure 1 Schematic diagram of the front structure of the present utility model;

[0022] Figure 2 Schematic diagram of the bottom structure of the present utility model;

[0023] Figure 3 Schematic diagram of the fixing device structure of the present utility model;

[0024] Figure 4 Schematic diagram of the cross-sectional structure of the protective box of the present utility model.

[0025] In the figure: 1, laser welding table; 2, laser welding equipment; 3, support frame; 4, lifting device; 41, first motor; 42, threaded rod; 43, first transmission block; 5, protective box; 6, clamping device; 61, second motor; 62, left and right hand screw rod; 63, second transmission block; 7, clamping plate; 8, placement frame; 9, fixing device; 91, electric push rod; 92, connecting plate; 93, baffle; 10, sliding rod; 11, slider. Detailed Description of the Preferred Embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] In the embodiment, given by Figures 1-4 an auxiliary positioning mechanism for a gas-sensitive smoke gas sensor, the present utility model includes a laser welding table 1, a laser welding device 2 is arranged inside the laser welding table 1, a support frame 3 is fixedly connected inside the laser welding table 1, a lifting device 4 is arranged inside the support frame 3, a protective box 5 is fixedly connected to the outside of the lifting device 4, a clamping device 6 is arranged inside the protective box 5, two clamping plates 7 are fixedly connected to the outside of the clamping device 6 and are symmetrically distributed left and right, a placement frame 8 is fixedly connected inside the laser welding table 1 above the clamping plates 7, and a fixing device 9 is fixedly connected to the outside of the placement frame 8.

[0028] Among them, the lifting device 4 includes a first motor 41 fixedly connected to the outside of the support frame 3. A threaded rod 42 rotatably connected to the inside of the support frame 3 is fixedly connected to the outside of the output shaft of the first motor 41. A first transmission block 43 fixedly connected to the protective box 5 is connected to the outside of the threaded rod 42 through threaded transmission.

[0029] In this embodiment, during the actual use process, the start of the first motor 41 will drive the threaded rod 42 to rotate. Under the action of the thread, the first transmission block 43 will move up and down.

[0030] Among them, a sliding rod 10 is fixedly connected to the inside of the laser welding table 1. A slider 11 slidably connected to the sliding rod 10 is fixedly connected to the outside of the protective box 5.

[0031] In this embodiment, during the actual use process, when the protective box 5 moves up and down, the slider 11 will move up and down accordingly and stably move in a divided direction under the restriction of the sliding rod 10.

[0032] Among them, the clamping device 6 includes a second motor 61 fixedly connected to the outside of the protective box 5. A left - and - right - hand threaded rod 62 rotatably connected to the inside of the protective box 5 is fixedly connected to the outside of the output shaft of the second motor 61. Two second transmission blocks 63 respectively fixedly connected to the two clamping plates 7 are connected to the outside of the left - and - right - hand threaded rod 62 through threaded transmission.

[0033] In this embodiment, during the actual use process, the start of the second motor 61 will drive the left - and - right - hand threaded rod 62 to rotate. Under the action of the thread, the two second transmission blocks 63 will move left and right and drive the two clamping plates 7 to clamp and fix.

[0034] Among them, the opposite sides of the two clamping plates 7 are both arc - shaped, and buffer pads are fixedly connected to the opposite surfaces of the two clamping plates 7.

[0035] In this embodiment, during the actual use process, the outside of the smoke sensor is circular, adapting to the arc - shaped surface of the clamping plate 7. The buffer pad prevents the clamping plate 7 from crushing the smoke sensor and increases the friction between the clamping plate 7 and the smoke sensor to prevent it from falling off.

[0036] Among them, the fixing device 9 includes an electric push rod 91 fixedly connected to the bottom of the placement frame 8. A connecting plate 92 is fixedly connected to the outside of the electric push rod 91. A baffle 93 located in front of the placement frame 8 is fixedly connected to the top of the connecting plate 92.

[0037] In this embodiment, during the actual use process, the start of the electric push rod 91 will cause the connecting plate 92 to push the baffle 93. When the baffle 93 moves away from the placement frame 8, the circuit board can be normally placed in the placement frame 8. And after the baffle 93 approaches, the baffle 93 limits the position of the circuit board.

[0038] Working principle:

[0039] When docking the smoke sensor with the circuit board, first place the circuit board into the placement frame 8, then fix it by starting the electric push rod 91 to make the baffle 93 act on it. Subsequently, place the smoke sensor between the two clamping plates 7 and fix it by starting the second motor 61. Then, under the action of the first motor 41, move the smoke sensor upward to approach and make its pins pass through the circuit board. Finally, weld its pins with the laser welding device 2. The laser welding device 2 is a multi-axis linkage welding device and can move in multiple directions.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0041] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary positioning mechanism for a gas-sensitive smoke gas sensor, comprising a laser welding table (1), characterized in that: Inside the laser welding table (1), there is a laser welding device (2). Inside the laser welding table (1), there is a support frame (3) fixedly connected. Inside the support frame (3), there is a lifting device (4). Outside the lifting device (4), there is a protective box (5) fixedly connected. Inside the protective box (5), there is a clamping device (6). Outside the clamping device (6), there are two clamping plates (7) fixedly connected and distributed symmetrically left and right. Inside the laser welding table (1), there is a placement frame (8) fixedly connected above the clamping plates (7). Outside the placement frame (8), there is a fixing device (9).

2. The auxiliary positioning mechanism of a gas-sensitive smoke gas sensor according to claim 1, characterized in that: The lifting device (4) includes a first motor (41) fixedly connected to the outside of the support frame (3). The output shaft of the first motor (41) is fixedly connected with a threaded rod (42) rotatably connected to the inside of the support frame (3). The outside of the threaded rod (42) is threadedly connected with a first transmission block (43) fixedly connected to the protective box (5).

3. The auxiliary positioning mechanism of a gas-sensitive smoke gas sensor according to claim 1, characterized in that: Inside the laser welding table (1), there is a sliding rod (10) fixedly connected. Outside the protective box (5), there is a slider (11) fixedly connected and slidably connected to the sliding rod (10).

4. The auxiliary positioning mechanism of a gas-sensitive smoke gas sensor according to claim 1, characterized in that: The clamping device (6) includes a second motor (61) fixedly connected to the outside of the protective box (5). The output shaft of the second motor (61) is fixedly connected with a left - right hand screw rod (62) rotatably connected to the inside of the protective box (5). The outside of the left - right hand screw rod (62) is threadedly connected with two second transmission blocks (63) respectively fixedly connected to the two clamping plates (7).

5. The auxiliary positioning mechanism of a gas-sensitive smoke gas sensor according to claim 1, characterized in that: The opposite sides of the two clamping plates (7) are both arc - shaped. The opposite surfaces of the two clamping plates (7) are both fixedly connected with buffer pads.

6. The auxiliary positioning mechanism of a gas-sensitive smoke gas sensor according to claim 1, characterized in that: The fixing device (9) includes an electric push rod (91) fixedly connected to the bottom of the placement frame (8). The outside of the electric push rod (91) is fixedly connected with a connecting plate (92). The top of the connecting plate (92) is fixedly connected with a baffle (93) located in front of the placement frame (8).

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