Rail transit steel casting drilling device with pressurizing and cooling structure

Abstract

The utility model discloses a rail transit steel casting drilling device with a pressurizing and cooling structure, which relates to the technical field of steel casting drilling and comprises a base and a fixing plate, a supporting plate is fixedly mounted on the bottom surface of the base, a supporting rod is fixedly mounted at a dead corner of the top end of the base, and the fixing plate is fixedly mounted at the top end of the supporting rod. A cooling mechanism is arranged between the supporting plate and the fixing plate; a protective shell is fixedly installed at the top end of the fixing plate, a spiral piece is rotatably installed on the inner side face of the fixing plate, and a drilling mechanism is arranged between the protective shell and the spiral piece. According to the rail transit steel casting drilling device with the pressurizing and cooling structure, a lifting column drives a mounting box to descend, the mounting box drives a pressing disc to descend, the pressing disc and a limiting disc press each other, and therefore the pressing disc is driven to press a cooling assembly, and a connecting rod and a drilling assembly are cooled through slotted holes formed in the mounting box; therefore, the temperature of the drilling assembly is reduced, and the service life of the drilling assembly is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of steel casting drilling, in particular to a rail transit steel casting drilling device with a pressurized cooling structure. Background Art

[0002] Rail transit is a system for operating rail vehicles, and rails are widely used in modern society. By drilling holes in rail transit gaskets and fixing the rails with processed steel castings, the operation of the rails is facilitated.

[0003] However, existing rail transit gaskets can only be drilled simply, which is inefficient. After drilling, the surface temperature of the gasket is too high, which easily affects the quality of the gasket.

[0004] In order to solve the above-mentioned defects, in the prior art, a Chinese patent with publication number CN217529269U discloses a drilling device for the production of rail transit gaskets, which is provided with a gasket rack, a placement slot and a cooling assembly to work together. First, multiple gaskets are placed in the multi-layer placement slots in the gasket rack, and multiple gaskets can be drilled at the same time. When the drilling is completed, the drill rod is removed, and then the second motor in the motor box in the cooling assembly rotates to drive the rotating rod to rotate, and the rotation of the rotating rod drives the fan box to rotate, and the rotation of the fan box drives the hair dryer to rotate, and the rotation of the hair dryer drives the air outlet pipe and the nozzle to rotate. When the nozzle rotates to above the through hole, it stops rotating. At this time, the hair dryer sucks air through the air inlet pipe and then blows it out through the air outlet pipe and the nozzle, which can cool the drilling position of the gasket and reduce the temperature of the gasket, solving the problem that the existing drilling device for the production of rail transit gaskets can only perform simple drilling work and can only drill one gasket at a time.

[0005] During use, the above-mentioned device uses the placement groove of the gasket rack to fix the gasket, so that multiple gaskets can be processed. However, the gasket rack in the above-mentioned device only fixes the gasket and does not cool the drill bit, which causes the drill bit to be easily damaged after working for a long time. Therefore, in actual use for too long, the drill bit will overheat for a long time, affecting its service life. Summary of the Invention

[0006] The purpose of the utility model is to provide a rail transit cast steel part drilling device with a pressurized cooling structure to solve the problem of poor drill bit cooling effect mentioned in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a drilling device for rail transit steel castings with a pressurized cooling structure, comprising a base and a fixing plate, and further comprising:

[0008] A support plate is fixedly installed on the bottom surface of the base, a support rod is fixedly installed at the top dead corner of the base, a fixing plate is fixedly installed on the top of the support rod, and a cooling mechanism is provided between the support plate and the fixing plate;

[0009] A protective shell is fixedly installed on the top of the fixing plate, a screw component is rotatably installed on the inner side surface of the fixing plate, and a drilling mechanism is provided between the protective shell and the screw component.

[0010] Furthermore, a stepper motor is fixedly mounted on the inner side of the protective shell, an output shaft is rotatably mounted on the inner side of the stepper motor, and a spiral component is rotatably mounted on the outer surface of the output shaft, and the output shaft and the spiral component form a rotating structure.

[0011] Furthermore, a lifting column is threadedly mounted on the outer surface of the spiral member, the drilling mechanism includes the lifting column, and a connecting rod is fixedly mounted on the outer surface of the lifting column, and the spiral member and the lifting column constitute a lifting structure.

[0012] Furthermore, a drilling assembly is fixedly installed on the bottom surface of the connecting rod, a mounting box is fixedly installed on the outer surface of the connecting rod, the cooling mechanism includes a mounting box, and a cooling assembly is movably installed on the inner surface of the mounting box, and a pressure plate is fixedly installed on the bottom surface of the cooling assembly.

[0013] Furthermore, a workbench is fixedly installed on the top of the base, a fixed platform is fixedly installed on the top of the workbench, and the workbench and the fixed platform form an integrated structure.

[0014] Furthermore, a limit plate is fixedly mounted on the top of the fixed platform, a limit disk is movably mounted on the top of the fixed platform, and a connecting plate is fixedly mounted on the bottom surface of the limit disk.

[0015] Furthermore, a spring is fixedly installed on the bottom surface of the connecting plate, the spring is fixedly installed on the inner side surface of the workbench, and the spring and the connecting plate form a telescopic structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The specific contents of the rail transit steel casting drilling device with pressurized cooling structure are as follows:

[0018] 1. By starting the stepper motor, the stepper motor drives the output shaft to rotate, the output shaft drives the screw to rotate, the screw drives the lifting column to move up and down, and the lifting column drives the connecting rod to drive the drilling assembly to move up and down, thereby facilitating the adjustment of the height of the drilling assembly and facilitating the drilling of rail transit cast steel parts;

[0019] Furthermore, the installation box is driven down by the lifting column, and the installation box drives the pressure plate down. The pressure plate and the limit plate press each other, thereby driving the pressure plate to press the cooling assembly. The slots opened inside the installation box are used to cool the connecting rod and the drilling assembly, thereby reducing the temperature of the drilling assembly and increasing the service life of the drilling assembly.

[0020] 2. The pressure plate is lowered to press the limit plate, which drives the connecting plate to descend. The connecting plate drives the spring to expand and contract, thereby buffering the drilling assembly and preventing the drilling assembly from excessively rising and falling and damaging the rail transit castings.

[0021] Furthermore, the limit plate is fixed to the fixed platform by screws, thereby facilitating the processing of rail transit steel castings and preventing injuries to personnel caused by flying iron chips during processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixing plate of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the drilling assembly of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixed platform of the utility model;

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the installation box of the utility model;

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the connecting plate of the utility model.

[0028] In the figure: 1. Base; 2. Fixed plate; 3. Support plate; 4. Protective shell; 5. Support rod; 6. Stepper motor; 7. Output shaft; 8. Screw; 9. Lifting column; 10. Mounting box; 11. Connecting rod; 12. Drilling assembly; 13. Cooling assembly; 14. Pressure plate; 15. Workbench; 16. Fixed table; 17. Limit plate; 18. Limit plate; 19. Connecting plate; 20. Spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1-6 The utility model provides the following technical solutions: a rail transit cast steel drilling device with a pressurized cooling structure, comprising a base 1 and a fixed plate 2, and also comprising: a support plate 3 is fixedly installed on the bottom surface of the base 1, a support rod 5 is fixedly installed at the top dead corner of the base 1, the top of the support rod 5 is fixedly installed with the fixed plate 2, and a cooling mechanism is arranged between the support plate 3 and the fixed plate 2; a protective shell 4 is fixedly installed on the top of the fixed plate 2, a spiral member 8 is rotatably installed on the inner side surface of the fixed plate 2, and a drilling mechanism is arranged between the protective shell 4 and the spiral member 8.

[0031] The drilling mechanism is pressurized and cooled by the cooling mechanism arranged between the support plate 3 and the fixed plate 2, thereby preventing the drill bit from being damaged by overheating due to long-term operation, and the rail transit cast steel parts are drilled by the drilling mechanism arranged between the protective shell 4 and the spiral member 8, thereby facilitating personnel operation.

[0032] Example 2: Based on Example 1, please refer to Figures 1-4 , a cooling assembly 13 is also disclosed, and its specific structure is as follows: a stepper motor 6 is fixedly mounted on the inner side surface of the protective shell 4, an output shaft 7 is rotatably mounted on the inner side surface of the stepper motor 6, and a screw 8 is rotatably mounted on the outer surface of the output shaft 7, and the output shaft 7 and the screw 8 form a rotating structure, a lifting column 9 is threadedly mounted on the outer surface of the screw 8, the drilling mechanism includes a lifting column 9, and a connecting rod 11 is fixedly mounted on the outer surface of the lifting column 9, and the screw 8 and the lifting column 9 form a lifting structure, a drilling assembly 12 is fixedly mounted on the bottom surface of the connecting rod 11, and a mounting box 10 is fixedly mounted on the outer surface of the connecting rod 11, the cooling mechanism includes a mounting box 10, and a cooling assembly 13 is movably mounted on the inner side surface of the mounting box 10, and a pressure plate 14 is fixedly mounted on the bottom surface of the cooling assembly 13.

[0033] By starting the stepper motor 6, the stepper motor 6 drives the output shaft 7 to rotate, the output shaft 7 drives the screw 8 to rotate, the screw 8 drives the lifting column 9 to lift, and the lifting column 9 drives the connecting rod 11 to drive the drilling assembly 12 to lift, so as to facilitate the adjustment of the height of the drilling assembly 12, and facilitate drilling of rail transit cast steel parts. The lifting column 9 drives the installation box 10 to descend, and the installation box 10 drives the pressure plate 14 to descend. The pressure plate 14 and the limit plate 18 press each other, thereby driving the pressure plate 14 to press the cooling assembly 13, and the slots opened inside the installation box 10 are used to cool the connecting rod 11 and the drilling assembly 12, thereby reducing the temperature of the drilling assembly 12 and increasing the service life of the drilling assembly 12.

[0034] Example 3: Based on Example 1, please refer to Figure 2-Figure 6, a limit plate 18 is also disclosed, and its specific structure is as follows: a workbench 15 is fixedly installed on the top of the base 1, a fixed platform 16 is fixedly installed on the top of the workbench 15, and the workbench 15 and the fixed platform 16 form an integrated structure, a limit plate 17 is fixedly installed on the top of the fixed platform 16, and a limit plate 18 is movably installed on the top of the fixed platform 16, and a connecting plate 19 is fixedly installed on the bottom surface of the limit plate 18, and a spring 20 is fixedly installed on the bottom surface of the connecting plate 19, and the spring 20 is fixedly installed on the inner side surface of the workbench 15, and the spring 20 and the connecting plate 19 form a telescopic structure.

[0035] The pressure plate 14 is lowered to press the limit plate 18, and the limit plate 18 drives the connecting plate 19 to descend, and the connecting plate 19 drives the spring 20 to expand and contract, thereby buffering the drilling component 12 and preventing the drilling component 12 from damaging the rail transit cast steel parts due to excessive lifting and lowering, and the limit plate 17 is fixed to the fixed platform 16 by screws, thereby facilitating the processing of rail transit cast steel parts and preventing iron chips from splashing during processing and causing injuries to personnel.

[0036] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A drilling device for rail transit steel castings with a pressurized cooling structure, comprising a base (1) and a fixing plate (2), characterized in that: Also includes: A support plate (3) is fixedly mounted on the bottom surface of the base (1), a support rod (5) is fixedly mounted at a blind corner at the top end of the base (1), a fixing plate (2) is fixedly mounted at the top end of the support rod (5), and a cooling mechanism is provided between the support plate (3) and the fixing plate (2); A protective shell (4) is fixedly mounted on the top of the fixed plate (2), a screw component (8) is rotatably mounted on the inner side surface of the fixed plate (2), and a drilling mechanism is provided between the protective shell (4) and the screw component (8).

2. The drilling device for rail transit steel castings with a pressurized cooling structure according to claim 1, characterized in that: A stepper motor (6) is fixedly mounted on the inner side of the protective shell (4), an output shaft (7) is rotatably mounted on the inner side of the stepper motor (6), and a screw component (8) is rotatably mounted on the outer surface of the output shaft (7), and the output shaft (7) and the screw component (8) form a rotating structure.

3. The drilling device for rail transit steel castings with a pressurized cooling structure according to claim 2, characterized in that: A lifting column (9) is threadedly mounted on the outer surface of the screw member (8), the drilling mechanism comprises the lifting column (9), and a connecting rod (11) is fixedly mounted on the outer surface of the lifting column (9), and the screw member (8) and the lifting column (9) form a lifting structure.

4. The drilling device for rail transit steel castings with a pressurized cooling structure according to claim 3, characterized in that: A drilling assembly (12) is fixedly mounted on the bottom surface of the connecting rod (11), a mounting box (10) is fixedly mounted on the outer surface of the connecting rod (11), the cooling mechanism comprises a mounting box (10), and a cooling assembly (13) is movably mounted on the inner side surface of the mounting box (10), and a pressure plate (14) is fixedly mounted on the bottom surface of the cooling assembly (13).

5. The drilling device for rail transit steel castings with a pressurized cooling structure according to claim 1, characterized in that: A workbench (15) is fixedly mounted on the top of the base (1), a fixed platform (16) is fixedly mounted on the top of the workbench (15), and the workbench (15) and the fixed platform (16) form an integrated structure.

6. The drilling device for rail transit steel castings with a pressurized cooling structure according to claim 5, characterized in that: A limit plate (17) is fixedly mounted on the top of the fixed platform (16), a limit disc (18) is movably mounted on the top of the fixed platform (16), and a connecting plate (19) is fixedly mounted on the bottom surface of the limit disc (18).

7. The drilling device for rail transit steel castings with a pressurized cooling structure according to claim 6, characterized in that: A spring (20) is fixedly mounted on the bottom surface of the connecting plate (19), and the spring (20) is fixedly mounted on the inner side surface of the workbench (15), and the spring (20) and the connecting plate (19) form a telescopic structure.

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