Drilling device for stepped part machining

Abstract

The utility model discloses a step part machining drilling device relates to the technological device for machining, include: mounting seat, the upper surface top fixed mounting of mounting seat has the shell, the inside left and right sides of shell are equipped with bearing, the inside middle section fixed mounting of shell has the bidirectional motor, the output of bidirectional motor both sides is equipped with the first threaded shaft, and the axle surface one end of first threaded shaft is inserted with bearing, the axle surface screw thread of first threaded shaft is installed with the upper shift block, the outer surface bottom rear side of upper shift block is installed with the connecting shaft, through the pre -limit system of slide rail, mounting axle and arc plate constitution, can complete the part primary fixation in 30 seconds, compared with traditional manual efficiency effective promotion, the first threaded shaft cooperation of adjustable first, second connecting plate assembly of bidirectional motor drive can adapt to different specifications step part, and the positioning error reduces from the traditional device's plus or minus 0.3mm to plus or minus 0.08mm.

Description

Technical Field

[0001] This utility model relates to a process device for machining, specifically a drilling device for machining stepped parts. Background Technology

[0002] As an important power equipment for railway transportation, diesel locomotives have a highly integrated structure and contain thousands of parts. Core components such as the transmission system, braking system, and power unit all need to be precisely matched to ensure stable operation under complex working conditions. Among them, stepped parts are key basic components for realizing component positioning, connection and transmission. They are widely used in components such as crankshafts, gearboxes, and brake levers. Their processing quality directly affects the reliability and service life of the locomotive.

[0003] However, ordinary equipment lacks a precise positioning structure for stepped surfaces, causing the drill bit to easily shift at the transition between different stepped surfaces, resulting in large hole position tolerances. Utility Model Content

[0004] To solve the above-mentioned technical problems, a drilling device for machining stepped parts is provided. This technical solution solves the problem of large tolerances caused by inaccurate positioning mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A drilling device for machining stepped parts includes: a mounting base, a housing fixedly mounted on the top of the upper surface of the mounting base, bearings mounted on the left and right sides inside the housing, a bidirectional motor fixedly mounted in the middle section inside the housing, a first threaded shaft mounted on the output ends of both sides of the bidirectional motor, a bearing inserted into one end of the shaft surface of the first threaded shaft, an upper moving block threadedly mounted on the shaft surface of the first threaded shaft, a connecting shaft mounted on the rear side of the bottom end of the outer surface of the upper moving block, a lower moving block inserted into the shaft surface of the connecting shaft, a first connecting plate fixedly mounted on the bottom end of the outer surface of the lower moving block, a limit block provided at the rear end of the outer surface of the first connecting plate, a moving groove formed in the middle section of the outer surface of the first connecting plate, and a second connecting plate mounted through the moving groove of the first connecting plate at one end of the outer surface of the limit block.

[0007] Preferably, a plurality of positioning rods are installed on the front end of the outer surface of the first connecting plate on both sides of the moving groove, a positioning shaft is inserted into the top of the outer surface of the second connecting plate, a pressure rod is inserted into the shaft surface of the positioning shaft, an insert rod is installed at the bottom of the outer surface of the pressure rod, and a positioning rod is inserted into the shaft surface of the insert rod.

[0008] Preferably, a slide rail is installed at the top of the outer surface of the mounting base, a mounting shaft is inserted into the middle section of the outer surface of the slide rail, an arc-shaped plate is inserted into the shaft surface of the mounting shaft, and a mounting box is installed on the upper surface of the mounting base at the rear end of the slide rail.

[0009] Preferably, a first motor is fixedly installed inside the mounting box, a second threaded shaft is installed at the output end of the first motor, and a movable frame is threaded through the top end of the shaft surface of the second threaded shaft and onto the outer surface of the mounting box.

[0010] Preferably, a second motor is installed at the bottom inner side of the outer surface of the mobile frame, a telescopic rod is installed at the output end of the second motor, and a drill bit is installed at the output end of the telescopic rod.

[0011] Preferably, a base is installed at the bottom of the outer surface of the mounting base, the top of the outer surface of the base is set as a foundation connection layer, and a rigid support layer is installed at the bottom of the outer surface of the foundation connection layer.

[0012] Preferably, an elastic buffer layer is installed at the bottom of the outer surface of the rigid support layer, and a positioning and mounting layer is provided at the bottom of the outer surface of the elastic buffer layer.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The drilling device for machining stepped parts proposed in this solution significantly improves positioning accuracy and efficiency through an innovative structure combining pre-limiting and adaptive positioning. The pre-limiting system, consisting of a slide rail, mounting shaft, and arc plate, can complete the initial fixing of the part within 30 seconds, effectively improving efficiency compared to traditional manual methods. The first threaded shaft driven by a bidirectional motor, in conjunction with adjustable first and second connecting plate assemblies, can adapt to stepped parts of different specifications, reducing the positioning error from ±0.3mm in traditional devices to ±0.08mm. The multi-axis linkage drilling mechanism achieves high-precision machining. The first motor and the second threaded shaft control the horizontal displacement of the drill bit, while the second motor and the telescopic rod precisely control the drilling depth, greatly reducing hole position deviation compared to traditional equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the second structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the pre-limiting component in this utility model;

[0018] Figure 4 This is a schematic diagram of the structure between the drilling components in this utility model;

[0019] Figure 5 This is a schematic diagram of the limiting component in this utility model;

[0020] Figure 6 This is a schematic diagram of the base assembly in this utility model.

[0021] The numbers on the map are:

[0022] 1. Mounting base; 2. Housing; 3. Base; 4. Slide rail; 5. Bidirectional motor; 6. First threaded shaft; 7. Bearing; 8. Upper moving block; 9. First connecting plate; 10. Second connecting plate; 11. Mounting box; 12. Limiting block; 13. Moving frame; 14. Arc plate; 15. Mounting shaft; 16. First motor; 17. Second threaded shaft; 18. Second motor; 19. Telescopic rod; 20. Drill bit; 21. Connecting shaft; 22. Lower moving block; 23. Pressure rod; 24. Positioning rod; 25. Insert rod; 26. Foundation connection layer; 27. Rigid support layer; 28. Elastic buffer layer; 29. ​​Positioning and mounting layer; 30. Positioning shaft. Detailed Implementation

[0023] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0024] Reference Figure 1-6 As shown, a drilling device for machining stepped parts includes: a mounting base 1, a housing 2 fixedly mounted on the top of the upper surface of the mounting base 1, a slide rail 4 mounted on the top of the outer surface of the mounting base 1, a mounting shaft 15 inserted into the middle section of the outer surface of the slide rail 4, an arc-shaped plate 14 inserted into the shaft surface of the mounting shaft 15, bearings 7 mounted on the left and right sides inside the housing 2, a bidirectional motor 5 fixedly mounted in the middle section inside the housing 2, first threaded shafts 6 mounted on the output ends of both sides of the bidirectional motor 5, and bearings 7 inserted into one end of the shaft surface of the first threaded shaft 6, an upper moving block 8 threadedly mounted on the shaft surface of the first threaded shaft 6, and a connecting shaft 21 mounted on the rear side of the bottom end of the outer surface of the upper moving block 8. A downward moving block 22 is inserted into the shaft surface of 1. A first connecting plate 9 is fixedly installed at the bottom of the outer surface of the downward moving block 22. A limit block 12 is provided at the rear end of the outer surface of the first connecting plate 9, and a moving groove is opened in the middle section of the outer surface of the first connecting plate 9. A second connecting plate 10 is installed through the moving groove of the first connecting plate 9 at one end of the outer surface of the limit block 12. Several sets of positioning rods 24 are installed on both sides of the moving groove at the front end of the outer surface of the first connecting plate 9. A positioning shaft 30 is inserted into the top of the outer surface of the second connecting plate 10. A pressure rod 23 is inserted into the shaft surface of the positioning shaft 30. An insertion rod 25 is installed at the bottom of the outer surface of the pressure rod 23, and a positioning rod 24 is inserted into the shaft surface of the insertion rod 25.

[0025] Through the above scheme, the slide rail 4, mounting shaft 15, and arc plate 14 provide pre-limiting positions for the parts. The slide rail 4 can be used to support the mounting shaft 15 and arc plate 14, allowing the parts to be positioned on the slide rail 4 before processing. The bottom of the workpiece is inserted into the slide rail 4, and then abuts against the arc plate 14. The arc plate 14 is rotated by the mounting shaft 15 to fix the top of the workpiece. The arc plate 14 can provide a certain support and positioning for the arc-shaped part of the stepped part. When needed, the lower moving block 22 is rotated by the connecting shaft 21 to make the lower moving block 22 parallel to the upper moving block 8. Then, the pressure rod 2 is rotated by external force. 3. The pressure rod 23 rotates through the positioning shaft and drives the insertion rod 25 to disengage from the shaft surface of the positioning rod 24. Then, the second connecting plate 10 moves down through the moving groove of the first connecting plate 9. After that, when the bidirectional motor 5 is turned on, it drives the first threaded shafts 6 on both sides to rotate. The bearing 7 reduces the frictional resistance when the shaft rotates, ensuring smooth rotation. The upper moving block 8 is engaged with the first threaded shaft 6 through the thread, so that the upper moving block 8 can move along the axial direction of the first threaded shaft 6. The second connecting plate 10 fixes both sides to achieve the adaptation of various specifications of stepped parts, effectively solving the problems of inaccurate positioning and difficulty in adapting to different parts in traditional devices.

[0026] Reference Figure 1-4 As shown, further, a mounting box 11 is installed on the upper surface of the mounting base 1 at the rear end of the slide rail 4. A first motor 16 is fixedly installed inside the mounting box 11. A second threaded shaft 17 is installed at the output end of the first motor 16. A movable frame 13 is threaded through the top of the shaft surface of the second threaded shaft 17 and threaded through the outer surface of the mounting box 11. A second motor 18 is installed at the bottom of the inner side of the outer surface of the movable frame 13. A telescopic rod 19 is installed at the output end of the second motor 18. A drill bit 20 is installed at the output end of the telescopic rod 19.

[0027] Through the above scheme, the first motor 16 cooperates with the second threaded shaft 17. When the first motor 16 rotates, it drives the second threaded shaft 17 to rotate, thereby driving the moving frame 13 to move axially along the second threaded shaft 17, realizing the adjustment of the drill bit 20 in high and low positions to adapt to the drilling requirements of different positions. Then, the second motor 18 provides rotational power to the drill bit 20, making the drill bit 20 rotate at high speed to perform drilling operations. The telescopic rod 19 can realize the telescopic movement of the drill bit 20 in the vertical direction to control the drilling depth. Through the coordinated work of the second motor 18 and the telescopic rod 19, the position and depth of the drilling can be precisely controlled to ensure drilling accuracy. Compared with traditional drilling devices, the hole position deviation can be reduced and the processing quality can be improved.

[0028] Reference Figure 6As shown, further, a base 3 is installed at the bottom of the outer surface of the mounting base 1, the top of the outer surface of the base 3 is set as a foundation connection layer 26, a rigid support layer 27 is installed at the bottom of the outer surface of the foundation connection layer 26, an elastic buffer layer 28 is installed at the bottom of the outer surface of the rigid support layer 27, and a positioning installation layer 29 is provided at the bottom of the outer surface of the elastic buffer layer 28.

[0029] Through the above scheme, the foundation connection layer 26 is used to firmly connect with the ground foundation, fix the device, and prevent the device from shifting during operation. The rigid support layer 27 has high strength and rigidity, bears the weight of the device and the load generated during processing, and ensures the rigidity of the overall structure of the device. The elastic buffer layer 28 is made of elastic material, which can effectively absorb the vibration generated during drilling, such as the high-frequency vibration generated by the friction between the drill bit and the parts, and the low-frequency vibration generated by the motor drive, reducing the impact of vibration on the processing accuracy. The positioning and mounting layer 29 provides a precise mounting and positioning plane for the upper components of the device, ensuring the installation accuracy of the mounting base 1 and other components, thereby ensuring the accuracy of the drilling operation. This multi-layer vibration reduction design, compared with the traditional single-layer base, can greatly improve the vibration resistance of the device, make the drilling process more stable, improve the quality and accuracy of parts processing, and extend the service life of the equipment.

[0030] Working principle and implementation method: First, insert the bottom of the workpiece into the slide rail 4 so that it abuts against the arc plate 14. The arc plate 14 rotates through the mounting shaft 15, fixing the top of the workpiece and completing the pre-limiting of the part, thus achieving preliminary position constraint. If it is necessary to adjust the clamping structure at this time, the lower moving block 22 can be rotated through the connecting shaft 21 to make it parallel to the upper moving block 8. Then, the pressure rod 23 is rotated, and the pressure rod 23 drives the insertion rod 25 to disengage from the positioning rod 24 through the positioning shaft 30, so as to facilitate subsequent adjustment. Subsequently, the second connecting plate 10 is lowered, and the bidirectional motor 5 is turned on. The motor drives the first threaded shafts 6 on both sides to rotate, and the rotation is smooth under the action of the bearing 7. The upper moving block 8 moves axially along the first threaded shaft 6, and fixes both sides of the part through the second connecting plate 10. The positioning position is adjusted according to the part specifications to achieve precise fitting and clamping of stepped parts of different specifications. After positioning, the first motor 16 drives the second threaded shaft 17 to rotate within the mounting box 11 on the mounting base 1, causing the moving frame 13 to move along the axis, thus adjusting the horizontal position of the drill bit 20. The second motor 18 provides rotational power to the drill bit 20, and the telescopic rod 19 controls the vertical extension and retraction of the drill bit 20, thereby precisely controlling the drilling position and depth. The base 3 plays a crucial role throughout the entire processing. The foundation connecting layer 26 is firmly connected to the ground to prevent device displacement. The rigid support layer 27 bears the weight of the device and the processing load. The elastic buffer layer 28 absorbs drilling vibrations, reducing the impact on accuracy. The positioning mounting layer 29 provides a precise mounting plane for the upper components, ensuring drilling accuracy. Through the close cooperation of each part, this device effectively solves the problems of inaccurate positioning and low processing accuracy of traditional drilling devices, achieving efficient and high-quality drilling processing of stepped parts.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drilling apparatus for machining stepped parts, comprising: The mounting base (1) is characterized in that: a housing (2) is fixedly installed on the top of the upper surface of the mounting base (1), bearings (7) are installed on the left and right sides inside the housing (2), a bidirectional motor (5) is fixedly installed in the middle section inside the housing (2), a first threaded shaft (6) is installed on the output ends on both sides of the bidirectional motor (5), and a bearing (7) is inserted into one end of the shaft surface of the first threaded shaft (6), an upper moving block (8) is threadedly installed on the shaft surface of the first threaded shaft (6), a connecting shaft (21) is installed on the rear side of the bottom end of the outer surface of the upper moving block (8), a lower moving block (22) is inserted into the shaft surface of the connecting shaft (21), a first connecting plate (9) is fixedly installed at the bottom end of the outer surface of the lower moving block (22), a limit block (12) is provided at the rear end of the outer surface of the first connecting plate (9), and a moving groove is opened in the middle section of the outer surface of the first connecting plate (9), and a second connecting plate (10) is installed through the moving groove of the first connecting plate (9) at one end of the outer surface of the limit block (12).

2. The drilling device for machining stepped parts according to claim 1, characterized in that: The front end of the outer surface of the first connecting plate (9) is equipped with several sets of positioning rods (24) on both sides of the moving groove. The top of the outer surface of the second connecting plate (10) is inserted with a positioning shaft (30). A pressure rod (23) is inserted into the shaft surface of the positioning shaft (30). A plug rod (25) is installed at the bottom of the outer surface of the pressure rod (23), and a positioning rod (24) is inserted into the shaft surface of the plug rod (25).

3. The drilling device for machining stepped parts according to claim 1, characterized in that: The top of the outer surface of the mounting base (1) is fitted with a slide rail (4), and a mounting shaft (15) is inserted into the middle section of the outer surface of the slide rail (4). An arc plate (14) is inserted into the shaft surface of the mounting shaft (15). A mounting box (11) is installed on the upper surface of the mounting base (1) at the rear end of the slide rail (4).

4. The drilling device for machining stepped parts according to claim 3, characterized in that: The first motor (16) is fixedly installed inside the mounting box (11). The output end of the first motor (16) is equipped with a second threaded shaft (17). The top end of the shaft surface of the second threaded shaft (17) passes through the outer surface of the mounting box (11) and is threaded with a movable frame (13).

5. The drilling device for machining stepped parts according to claim 4, characterized in that: A second motor (18) is installed on the bottom inner side of the outer surface of the mobile frame (13). A telescopic rod (19) is installed at the output end of the second motor (18), and a drill bit (20) is installed at the output end of the telescopic rod (19).

6. The drilling apparatus for machining stepped parts according to claim 1, characterized in that: The mounting base (1) is equipped with a base (3) at the bottom of its outer surface. The top of the outer surface of the base (3) is set as a foundation connection layer (26). The bottom of the outer surface of the foundation connection layer (26) is equipped with a rigid support layer (27).

7. The drilling apparatus for machining stepped parts according to claim 6, characterized in that: An elastic buffer layer (28) is installed at the bottom of the outer surface of the rigid support layer (27), and a positioning installation layer (29) is provided at the bottom of the outer surface of the elastic buffer layer (28).

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