Electromechanical tail end trepanning device

Abstract

The utility model provides an electromechanical tail end trepanning device, and relates to the technical field of trepanning devices. A drill bit is welded to the top of the rotating shaft, and a reaming assembly is welded to the drill bit. According to the device, through the arrangement of a protective cover and a spiral spring, on one hand, generated chippings can be blocked, splashing of the chippings is avoided, workers are prevented from being hurt by the chippings, and follow-up chipping cleaning is more convenient; on the other hand, under the jacking action of the spring, the protective cover can be in close contact with the workbench, the blocking effect of the chippings is guaranteed, and practicability and safety are high; according to the drilling device, through the arrangement of the limiting assembly, limiting can be conducted through the four limiting pipes, after the four limiting pipes make contact with a part, the drilling stability of the drill bit can be guaranteed, the drilling precision is guaranteed, the limiting pipes are adjustable, drilling limiting can be achieved by adjusting the positions of the limiting pipes, and machining of holes of different sizes is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hole-opening devices, and particularly relates to an electromechanical end hole-opening device. Background Technique

[0002] When machining electromechanical end parts, a hole-opening device is required for hole opening. There are various types of hole-opening devices. Among them, the handheld hole-opening device is one of the hole-opening devices. When opening a hole, the drill bit needs to be in contact with the part, and then the drilling machine is started to open the hole.

[0003] In the existing handheld hole-opening device, during the hole-opening process, due to the influence of vibration during drilling, the hole opening is prone to deviation, which affects the hole-opening accuracy, and it is not possible to reduce the hole-opening deviation caused by vibration through structural improvement with a hole-opening limiting structure. Content of the Utility Model

[0004] In view of this, the utility model provides an electromechanical end hole-opening device, which solves the problem that in the existing handheld hole-opening device, during the hole-opening process, due to the influence of vibration during drilling, the hole opening is prone to deviation, which affects the hole-opening accuracy, and it is not possible to reduce the hole-opening deviation caused by vibration through structural improvement with a hole-opening limiting structure.

[0005] The purpose and effect of the electromechanical end hole-opening device of the utility model are achieved by the following specific technical means:

[0006] The utility model provides an electromechanical end hole-opening device, which specifically includes: a rotating shaft; the rotating shaft is used to be connected to the rotating shaft of the drilling machine, a drill bit is welded to the top of the rotating shaft, and a hole-expanding component is welded to the drill bit.

[0007] Further, the hole-expanding component is composed of a hole-expanding seat and auxiliary blocks. The hole-expanding seat is welded to the rotating shaft. The hole-expanding seat is of a conical structure. The top of the hole-expanding seat is in contact with the outer wall of the drill bit. Auxiliary blocks are welded on the outer wall of the hole-expanding seat in an annular array. The auxiliary blocks are of rectangular block structures.

[0008] Further, a protective cover in the shape of a circular cover is slidably connected to the rotating shaft, and the protective cover is hidden inside the protective cover.

[0009] Further, a spiral spring for the upward reset of the protective cover is sleeved on the rotating shaft.

[0010] Further, a limiting component is installed on the rotating shaft. The limiting component is composed of a first connecting block, a sliding rod, a limiting tube, a second connecting block, and a threaded rod. The first connecting block is rotatably connected to the rotating shaft. The first connecting block is of a rectangular plate structure. Four cylindrical rod-shaped sliding rods are welded to the top end surface of the first connecting block.

[0011] Further, a limiting tube in the shape of a cylindrical rod is sleeved on each of the sliding rods, and the four limiting tubes are welded and connected by a second connecting block. The second connecting block is in the shape of a rectangular plate and is slidably connected to the rotating shaft.

[0012] Further, a threaded rod is rotatably connected to the bottom end surface of the second connecting block. The threaded rod is threadedly connected to the first connecting block and passes through the protective cover.

[0013] Beneficial effects: In this application, through the settings of the protective cover and the spiral spring, on the one hand, it can block the generated debris, avoid the splashing of debris, and thus avoid the staff being injured by the debris, making it more convenient to clean the debris later; on the other hand, under the pushing action of the spring, the protective cover can be in close contact with the workbench, ensuring the blocking effect of the debris, with high practicability and safety.

[0014] In this application, through the setting of the limiting component, it can be limited by the four limiting tubes. When the four limiting tubes contact the part, it can ensure the stability of the drill bit during drilling, guarantee the drilling accuracy, and the limiting tubes are adjustable. By adjusting the position of the limiting tubes, drilling limitation can be achieved, and thus the processing of holes of different sizes can be realized.

[0015] In this application, through the settings of the reaming seat and the auxiliary block, the processing of holes of different sizes can be realized, and the drilling flexibility is relatively high. When drilling holes of different sizes, there is no need to replace the drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0017] The following drawings in the description only relate to some embodiments of the present invention and do not limit the present invention.

[0018] In the drawings:

[0019] Figure 1 is the axonometric structural schematic diagram of the electromechanical end hole-opening device of the present invention.

[0020] Figure 2 is the front view structural schematic diagram of the electromechanical end hole-opening device of the present invention.

[0021] Figure 3 is the axonometric structural schematic diagram of the electromechanical end hole-opening device after partial sectioning of the present invention.

[0022] Figure 4 is the present invention Figure 3 front view structural schematic diagram.

[0023] Figure 5It is a front view structural schematic diagram of the rotating shaft, the first connecting block and the sliding rod of the present utility model.

[0024] Figure 6 It is the present utility model Figure 5 of the axonometric structural schematic diagram.

[0025] List of reference numerals

[0026] 1. Rotating shaft; 101. Drill bit; 2. Reaming assembly; 201. Reaming seat; 202. Auxiliary block; 3. Protective cover; 4. Helical spring; 5. Limiting assembly; 501. First connecting block; 502. Sliding rod; 503. Limiting tube; 504. Second connecting block; 505. Threaded rod. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0028] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present utility model belongs. The words such as "a", "an" or "the" used in the description of the present utility model patent application specification and claims do not indicate a limitation in quantity, but rather indicate the presence of at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents. "Connection" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] The following further describes in detail the implementation manners of the present utility model with reference to the drawings and embodiments. Embodiment 1:

[0030] Please refer to Figures 1 to 6 :

[0031] The present utility model provides an electromechanical end hole-opening device, including: a rotating shaft 1; the rotating shaft 1 is used to be connected to the rotating shaft of a drilling machine, a drill bit 101 is welded to the top of the rotating shaft 1, and a reaming assembly 2 is welded to the drill bit 101.

[0032] Among them, the reaming component 2 is composed of a reaming seat 201 and auxiliary blocks 202. The reaming seat 201 is welded to the rotating shaft 1. The reaming seat 201 is of a conical structure. The top of the reaming seat 201 contacts the outer wall of the drill bit 101. Auxiliary blocks 202 are welded on the outer wall of the reaming seat 201 in an annular array. The auxiliary blocks 202 are of a rectangular block structure.

[0033] Among them, a limiting component 5 is installed on the rotating shaft 1. The limiting component 5 is composed of a first connecting block 501, a sliding rod 502, a limiting tube 503, a second connecting block 504, and a threaded rod 505. The first connecting block 501 is rotatably connected to the rotating shaft 1. The first connecting block 501 is of a rectangular plate structure. Four sliding rods 502 in the shape of cylindrical rods are welded to the top end surface of the first connecting block 501.

[0034] Among them, a limiting tube 503 in the shape of a cylindrical rod is sleeved on each sliding rod 502. The four limiting tubes 503 are welded and connected by a second connecting block 504. The second connecting block 504 is of a rectangular plate structure. The second connecting block 504 is slidably connected to the rotating shaft 1.

[0035] Among them, a threaded rod 505 is rotatably connected to the bottom end surface of the second connecting block 504. The threaded rod 505 is threadedly connected to the first connecting block 501. The threaded rod 505 passes through the protective cover 3. When it is necessary to adjust the drilling limit, the threaded rod 505 can be rotated. When the threaded rod 505 is rotated, driven by the threaded rod 505, the synchronous movement of the four limiting tubes 503 can be realized. Through the synchronous movement of the limiting tubes 503, the limit of the downward movement of the drill bit 101 can be realized. Embodiment 2:

[0036] On the basis of Embodiment 1, a protective cover 3 in the shape of a circular cover is slidably connected to the rotating shaft 1. The protective cover 3 is hidden inside the protective cover 3. During drilling, the protective cover 3 can block debris, preventing the debris from splashing everywhere and thus hurting the staff. Embodiment 3:

[0037] On the basis of Embodiment 2, a spiral spring 4 for the upward reset of the protective cover 3 is sleeved on the rotating shaft 1. Under the pushing action of the spring, the protective cover 3 can be in close contact with the workbench, ensuring the debris blocking effect.

[0038] The specific usage method and function of this embodiment:

[0039] When drilling, connect the rotating shaft 1 to the rotating shaft of the drilling machine, and bring the drill bit 101 into contact with the part to be drilled. At this time, the protective cover 3 covers the outside of the part. Start the drilling machine to drill. During the drilling process, first, drill through the drill bit 101, and then the auxiliary block 202 on the reaming seat 201 contacts the part to achieve reaming; when it is necessary to adjust the drilling limit, just rotate the threaded rod 505. When the threaded rod 505 is rotated, driven by the threaded rod 505, the synchronous movement of the four limit tubes 503 can be achieved. Through the synchronous movement of the limit tubes 503, the limit of the downward movement of the drill bit 101 can be achieved.

Claims

1. An electromechanical end opening device, comprising: A rotating shaft (1); the rotating shaft (1) is used to be connected to the rotating shaft of a drilling machine, a drill bit (101) is welded to the top of the rotating shaft (1), and a hole expansion assembly (2) is welded to the drill bit (101); the characteristic is that the hole expansion assembly (2) is composed of a hole expansion seat (201) and an auxiliary block (202), the hole expansion seat (201) is welded to the rotating shaft (1), the hole expansion seat (201) is a conical structure, the top of the hole expansion seat (201) is in contact with the outer wall of the drill bit (101), the auxiliary blocks (202) are welded in a circular array on the outer wall of the hole expansion seat (201), and the auxiliary blocks (202) are rectangular block structures.

2. An electromechanical end opening device as claimed in claim 1, characterized in that: A protective cover (3) with a circular cover-like structure is slidably connected to the rotating shaft (1), and the protective cover (3) is hidden inside the protective cover (3).

3. The electromechanical end opening device according to claim 1, characterized in that: A coil spring (4) is sleeved on the rotating shaft (1) and is used to reset the protective cover (3) upward.

4. The electromechanical end opening device according to claim 1, characterized in that: A limit assembly (5) is installed on the rotating shaft (1), and the limit assembly (5) is composed of a first connecting block (501), a sliding rod (502), a limit tube (503), a second connecting block (504) and a threaded rod (505). The first connecting block (501) is rotatably connected to the rotating shaft (1), and the first connecting block (501) is a rectangular plate-shaped structure. Four sliding rods (502) with cylindrical rod-shaped structures are welded to the top end surface of the first connecting block (501).

5. An electromechanical end opening device as claimed in claim 4, characterized in that: A limiting tube (503) with a cylindrical rod-shaped structure is sleeved on each of the sliding rods (502). The four limiting tubes (503) are connected by welding via a second connecting block (504). The second connecting block (504) is a rectangular plate-shaped structure. The second connecting block (504) is slidably connected to the rotating shaft (1).

6. An electromechanical end opening device as claimed in claim 5, characterized in that: A threaded rod (505) is rotatably connected to the bottom end surface of the second connection block (504); the threaded rod (505) is threadedly connected to the first connection block (501); and the threaded rod (505) passes through the protective cover (3).

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