Welding fixture for communication joint of underground explosion-proof tank of coal mine

Abstract

The utility model belongs to the technical field of coal mine underground explosion-proof box production, and discloses a welding fixture for a coal mine underground explosion-proof box communication joint, which comprises a support frame, an electric control cabinet and a driving motor, the electric control cabinet and the driving motor are fixed on the support frame, the driving motor is electrically connected with the electric control cabinet, and the driving motor drives a rotating mechanism positioned on the support frame to rotate. An electromagnet is fixed to the top end of the rotating mechanism and electrically connected with the electric control cabinet. Due to the structure, the thickness consistency of surfacing welding of the same batch is improved, the production efficiency is improved, and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine explosion-proof box production technology, and provides a welding fixture for connecting sections of coal mine explosion-proof boxes to improve the consistency of weld thickness in the same batch, improve production efficiency and reduce the labor intensity of workers. Background Technology

[0002] See appendix Figure 1 The existing welding method for the connecting sections of explosion-proof boxes in underground coal mines is as follows: workers first fix the connecting section (4) at the connecting section through hole (5) on the portal frame (2) or enclosure plate (3) of the box body (1) by spot welding, and then weld the entire connecting section (4) to the portal frame (2) or enclosure plate (3) by edge overlay welding. In this type of welding process, workers need to move to different positions, resulting in poor consistency of the overlay welding thickness of the connecting sections of explosion-proof boxes in underground coal mines in the same batch, low production efficiency and high labor intensity for workers. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a welding fixture for the connecting section of an explosion-proof box in a coal mine, which improves the consistency of the weld thickness in the same batch, increases production efficiency, and reduces the labor intensity of workers.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] This utility model provides a welding fixture for the connection section of an explosion-proof box in an underground coal mine, which includes a support frame, an electrical control cabinet and a drive motor fixed on the support frame. The drive motor is electrically connected to the electrical control cabinet. The drive motor drives a rotating mechanism located on the support frame to rotate. An electromagnet is fixed at the top of the rotating mechanism and is electrically connected to the electrical control cabinet.

[0006] To simplify the structure of the rotating mechanism, make it easier to manufacture and ensure transmission stability, the above scheme further includes: the rotating mechanism includes a driven gear meshing with the driving gear, the driving gear and the driven gear are respectively fixed on the output shaft of the drive motor and the rotating shaft, the rotating shaft is connected to the support frame through bearings, and the electromagnet is fixed to the top of the rotating shaft.

[0007] To further reduce the labor intensity of workers and ensure the optimal welding angle, the above solution further includes: a lifting sleeve is threadedly connected to the top of the rotating shaft, and a lifting shaft is threadedly connected to the top of the lifting sleeve, with the electromagnet fixed at the top.

[0008] To facilitate standardized wiring, the above scheme further includes the following: both the rotating shaft and the lifting shaft are hollow shafts, and the wires of the electromagnet and the electrical control cabinet pass through the inner cavity of the rotating shaft, the inner cavity of the lifting sleeve, and the inner cavity of the lifting shaft.

[0009] To ensure the stability of the transmission between the drive gear and the driven gear, the above scheme further includes: the rotating shaft is connected to the protective box via a bearing, and both the drive gear and the driven gear are located inside the protective box.

[0010] To prevent slag from falling onto the support frame and protective box, and to facilitate cleaning of the slag, the above solution further includes a protective disc threadedly connected to the lower part of the rotating shaft.

[0011] To facilitate the handling of the entire structure, the above solution further includes: the bottom of the support frame is equipped with brakeable omnidirectional rollers.

[0012] The beneficial effects of this utility model are:

[0013] The rotating mechanism eliminates the need for workers to move while welding, reducing their workload and increasing welding efficiency.

[0014] During welding, the worker's hand holding the welding gun is placed still on the top surface of the door frame or enclosure plate, which improves the consistency of the weld thickness in the same batch and improves the welding quality.

[0015] The electromagnet can quickly and stably fix the door frame or enclosure plate onto the welding fixture, reducing the labor intensity of workers compared with existing technologies.

[0016] The lifting sleeve and the lifting shaft are integrated to form a lifting structure, which allows workers to adjust the height of the lifting structure according to their own height. Attached Figure Description

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the preferred embodiments of this utility model will be described in detail below with reference to the accompanying drawings, wherein:

[0018] Figure 1 This is a schematic diagram of the structure of the connecting joint of the existing explosion-proof box in an underground coal mine according to the present invention;

[0019] Figure 2 This is a schematic diagram of the structure during welding of the connecting joint at the portal frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure during welding of the connecting joint at the enclosure plate of this utility model;

[0021] Figure 4 This is a control block diagram of the present invention;

[0022] Reference numerals in the attached drawings: 1. Housing; 2. Door frame; 3. Enclosure panel; 4. Connecting joint; 5. Connecting joint through hole; 6. Support frame; 7. Electrical control cabinet; 8. Drive motor; 9. Rotating mechanism; 10. Electromagnet; 11. Drive gear; 12. Driven gear; 13. Rotating shaft; 14. Lifting sleeve; 15. Lifting shaft; 16. Protective box; 17. Protective disc; 18. Brakeable universal roller; 19. Power start switch; 20. Motor start / stop switch; 21. Electromagnet start / stop switch; 22. Controller with PLC control chip; 23. External power supply plug-in terminal. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0025] like Figures 2 to 4 As shown, this utility model provides a welding fixture for the connecting section of an explosion-proof box in a coal mine, comprising: a support frame 6, an electrical control cabinet 7 fixed on the support frame 6, and a drive motor 8. The drive motor 8 is electrically connected to the electrical control cabinet 7, and the drive motor 8 drives a rotating mechanism 9 located on the support frame 6 to rotate. An electromagnet 10 is fixed to the top of the rotating mechanism 9, and the electromagnet 10 is electrically connected to the electrical control cabinet 7. In this embodiment, the electrical control cabinet 7 is equipped with a controller 22 with a PLC control chip. The controller 22 with the PLC control chip is electrically connected to a power start switch 19, a motor start / stop switch 20, an electromagnet start / stop switch 21, and an external power supply plug-in terminal 23, all located on the housing of the electrical control cabinet 7. In specific implementations, a power on / off indicator light can be installed on the housing of the electrical control cabinet 7 as needed, and this indicator light is electrically connected to the controller 22 with the PLC control chip.

[0026] To simplify the structure of the rotating mechanism 9, make it easier to manufacture and ensure the stability of the transmission, the above scheme further includes: the rotating mechanism 9 includes a driven gear 12 that meshes with the driving gear 11. The driving gear 11 and the driven gear 12 are respectively fixed on the output shaft of the driving motor 8 and the rotating shaft 13. The rotating shaft 13 is connected to the support frame 6 through a bearing, and the electromagnet 10 is fixed to the top of the rotating shaft 13.

[0027] To further reduce the labor intensity of workers and ensure the optimal welding angle, the above solution further includes: a lifting sleeve 14 threadedly connected to the top of the rotating shaft 13, and a lifting shaft 15 threadedly connected to the top of the lifting sleeve 14, with the electromagnet 10 fixed at its top. The lifting sleeve 14 and the lifting shaft 15 form a lifting structure, allowing workers to adjust the height of the lifting structure according to their own height, effectively adjusting the angle between the welding torch held by the worker and the door frame 2 or enclosure plate 3 to the optimal operating angle.

[0028] To facilitate the standardization of wire routing, the above scheme further includes the following: both the rotating shaft 13 and the lifting shaft 15 are hollow shafts, and the wires of the electromagnet 10 and the electrical control cabinet 7 pass through the inner cavity of the rotating shaft 13, the inner cavity of the lifting sleeve 14, and the inner cavity of the lifting shaft 15.

[0029] To ensure the stability of the transmission between the drive gear 11 and the driven gear 12, the above scheme further includes: the rotating shaft 13 is connected to the protective box 16 via a bearing, and both the drive gear 11 and the driven gear 12 are located within the inner cavity of the protective box 16. In a specific implementation, the protective box 16 is fixedly connected to the support frame 6, and the drive motor 8 is fixed to the base plate of the protective box 16 and / or the support frame 6.

[0030] To prevent slag from falling onto the support frame 6 and the protective box 16, and to facilitate cleaning of the slag, the above solution further includes a protective disc 17 threadedly connected to the lower part of the rotating shaft 13.

[0031] To facilitate the handling of the entire structure, the above solution further includes: the bottom of the support frame 6 is provided with brakeable omnidirectional rollers 18.

[0032] See appendix Figures 3 to 4The welding process of the connecting section 4 described in the above embodiment is as follows: First, the worker connects the external power supply plug terminal 23 to the external power supply through the external power supply cable to power on the controller 22 with the PLC control chip; then, the power start switch 19 and the electromagnet start / stop switch 21 are turned on in sequence; then, the gate frame 2 or enclosure plate 3 is placed on the electromagnet 10, and then the connecting section 4 is placed in the connecting section through hole 5 and spot welded and positioned by the welding gun; finally, the motor start / stop switch 20 is turned on, so that the gate frame 2 or enclosure plate 3 rotates with the rotating mechanism 9, and the worker's welding hand is placed on the top plate surface of the gate frame 2 or the top plate surface of the enclosure plate 3 to achieve the overlay welding of the connecting section 4 to the gate frame 2 or enclosure plate 3.

[0033] All components in the above embodiments are commercially available products. The description of the program control part is for the purpose of understanding the solution by those skilled in the art and is not the inventive point that the solution intends to protect.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of this technical solution, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A welding fixture for the connecting section of an explosion-proof box in an underground coal mine, characterized in that: It includes a support frame (6), an electrical control cabinet (7) fixed on the support frame (6) and a drive motor (8), the drive motor (8) being electrically connected to the electrical control cabinet (7), the drive motor (8) driving a rotating mechanism (9) located on the support frame (6) to rotate, the top of the rotating mechanism (9) being fixed with an electromagnet (10), the electromagnet (10) being electrically connected to the electrical control cabinet (7).

2. The welding clamp for connecting the explosion-proof boxes in the coal mine according to claim 1, characterized in that: The rotating mechanism (9) includes a driven gear (12) that meshes with the drive gear (11). The drive gear (11) and the driven gear (12) are respectively fixed on the output shaft of the drive motor (8) and the rotating shaft (13). The rotating shaft (13) is connected to the support frame (6) by a bearing. The electromagnet (10) is fixed at the top of the rotating shaft (13).

3. The welding fixture for the connecting section of an explosion-proof box in an underground coal mine according to claim 2, characterized in that: The top of the rotating shaft (13) is threadedly connected to a lifting sleeve (14), and the top of the lifting sleeve (14) is threadedly connected to a lifting shaft (15), with the electromagnet (10) fixed at the top.

4. The welding fixture of claim 3, wherein: Both the rotating shaft (13) and the lifting shaft (15) are hollow shafts. The wires of the electromagnet (10) and the electrical control cabinet (7) pass through the inner cavity of the rotating shaft (13), the inner cavity of the lifting sleeve (14), and the inner cavity of the lifting shaft (15).

5. The welding fixture for connecting the explosion-proof boxes in a coal mine according to claim 2 or 3, characterized in that: The rotating shaft (13) is connected to the protective box (16) by a bearing, and the driving gear (11) and the driven gear (12) are both located in the inner cavity of the protective box (16).

6. The welding fixture for connecting the explosion-proof boxes in a coal mine according to claim 2 or 3, characterized in that: The lower part of the rotating shaft (13) is threaded with a protective disc (17).

7. The welding fixture of claim 1, wherein: The bottom of the support frame (6) is provided with brakeable universal rollers (18).

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