A type of high-strength stepped drill with limit and telescopic movement

Abstract

This utility model relates to a high-strength, telescopic step drill with limited positioning in the field of step drill technology. It includes a first drill bit with a fixed mounting hole inside. A fixed groove is symmetrically formed at one end of the first drill bit, and a fixed guide groove is symmetrically formed inside the first drill bit. An adjustment mechanism is movably placed inside the fixed groove and the fixed guide groove. A telescopic drill bit mechanism is movably arranged outside the output end of the adjustment mechanism. Through the mutual cooperation of the fixed mounting hole, the fixed groove, the fixed guide groove, the adjustment mechanism, and the telescopic drill bit mechanism, when a deep hole adapted to the telescopic drill bit mechanism needs to be machined during use, the adjustment mechanism can be adjusted to extend the telescopic drill bit mechanism outwards for adjustment. This allows for stable machining of deep holes of the same size, making operation convenient.

Description

Technical Field

[0001] This utility model relates to the field of stepped drilling technology, and in particular to a high-strength stepped drill with limited extension and retraction. Background Technology

[0002] Step drills, also known as step drills or pagoda drills, allow one drill bit to replace multiple drill bits. They can process holes of different diameters as needed, and can complete the processing of large holes in one go without changing drill bits or drilling positioning holes. Step drills can be used in industries such as automotive processing, aerospace, sheet metal processing, and electrical installation and repair. At the same time, the product is easy to carry and can be used in conjunction with tools such as electric drills for high-altitude operations.

[0003] Existing stepped drill bits typically have a limited step length, which limits their application when machining holes of the same size on plates of a certain thickness. Therefore, we propose a high-strength stepped drill with limitable extension. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a high-strength stepped drill with limited telescopic movement, which can solve the problems existing in the background art.

[0005] The technical solution of this utility model is:

[0006] A high-strength stepped drill with limited telescopic movement includes a first drill bit, a fixed mounting hole inside the first drill bit, a fixed groove symmetrically formed at one end of the first drill bit, a fixed guide groove symmetrically formed inside the first drill bit, an adjustment mechanism movably placed inside the fixed groove and the fixed guide groove, and a telescopic drill bit mechanism movably provided outside the output end of the adjustment mechanism.

[0007] In a further technical solution, the adjusting mechanism includes a movable mounting frame located inside the fixed mounting hole. One end of the movable mounting frame is symmetrically provided with a connecting limit block. A movable threaded rod is movably connected inside the movable mounting frame. A fixed limit collar is fixedly sleeved on the surface of the movable threaded rod. One end of the movable threaded rod is fixedly connected to a connecting mounting end plate. A rotating rod is fixedly connected to the side of the connecting mounting end plate away from the movable threaded rod.

[0008] In a further technical solution, one side of the connecting mounting plate and the fixed limiting collar slides and fits against the inner and outer sides of one end of the movable mounting frame.

[0009] In a further technical solution, the outer surface of the connecting limiting block and the inner surface of the fixing groove slide against each other.

[0010] In a further technical solution, the telescopic drill bit mechanism includes a second drill bit, with connecting guide blocks symmetrically arranged on the outer side of one end surface of the second drill bit, and a threaded inner hole opened on the inner side of the second drill bit.

[0011] In a further technical solution, the threaded inner hole and the movable threaded rod slide against each other.

[0012] In a further technical solution, the outer surface of the connecting guide block and the inner surface of the fixed guide groove slide against each other.

[0013] The beneficial effects of this utility model are:

[0014] 1. Through the cooperation of the fixed mounting hole, fixed groove, fixed guide groove, adjustment mechanism and telescopic drill bit mechanism, when it is necessary to process a deep hole that is compatible with the telescopic drill bit mechanism during use, the adjustment mechanism can be adjusted so that the telescopic drill bit mechanism can extend outward for adjustment, thereby enabling stable processing of deep holes of the same size, which is convenient to operate.

[0015] 2. The overall structure of this utility model is simple, and it can be stably adjusted during use. It can process deep holes of the same size, and the operation is convenient and quick. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a high-strength stepped drill with limitable telescopic movement according to an embodiment of this utility model;

[0017] Figure 2 This is an exploded structural diagram of a limitable telescopic high-strength stepped drill according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the telescopic deployment structure of a telescopic high-strength stepped drill with limiting telescopic capability according to an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the adjustment mechanism structure of a high-strength stepped drill with limitable extension according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the telescopic drill bit mechanism of a high-strength stepped drill with limitable telescopic extension according to an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. First drill bit;

[0023] 2. Fixed mounting holes;

[0024] 3. Fix the groove;

[0025] 4. Fix the guide groove;

[0026] 5. Adjustment mechanism; 51. Movable mounting frame; 52. Connecting limit block; 53. Movable threaded rod; 54. Fixed limit collar; 55. Connecting mounting end plate; 56. Rotating rod;

[0027] 6. Telescopic drill bit mechanism; 61. Second drill bit; 62. Threaded inner hole; 63. Connecting guide block. Detailed Implementation

[0028] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0029] Example:

[0030] like Figures 1-5 As shown, a high-strength stepped drill with limited telescopic movement includes a first drill bit 1. The first drill bit 1 has a fixed mounting hole 2 inside. A fixed groove 3 is symmetrically provided at one end of the first drill bit 1. A fixed guide groove 4 is symmetrically provided inside the first drill bit 1. An adjustment mechanism 5 is movably placed inside the fixed groove 3 and the fixed guide groove 4. A telescopic drill bit mechanism 6 is movably provided outside the output end of the adjustment mechanism 5.

[0031] The working principle of the above technical solution is as follows:

[0032] During use, when it is necessary to process a deep hole that is compatible with the telescopic drill bit mechanism 6, the adjustment mechanism 5 can be adjusted so that the telescopic drill bit mechanism 6 extends out from the inside of the first drill bit 1 for processing. If it is necessary to process a deep hole that is compatible with the first drill bit 1, the first drill bit 1 can be used directly, so that the telescopic drill bit mechanism 6 is stably located inside the first drill bit 1, making operation convenient.

[0033] In another embodiment, such as Figure 4 As shown, the adjustment mechanism 5 includes a movable mounting frame 51 located inside the fixed mounting hole 2. A connecting limit block 52 is symmetrically provided at one end of the movable mounting frame 51. A movable threaded rod 53 is movably connected inside the movable mounting frame 51. A fixed limit collar 54 is fixedly sleeved on the surface of the movable threaded rod 53. A connecting mounting end plate 55 is fixedly connected to one end of the movable threaded rod 53. A rotating rod 56 is fixedly connected to the side of the connecting mounting end plate 55 away from the movable threaded rod 53.

[0034] The rotating rod 56 can be rotated using tools, which drives the connecting mounting plate 55, the movable threaded rod 53 and the fixed limiting collar 54 to rotate. When the movable threaded rod 53 rotates, the telescopic drill bit mechanism 6 can move between the outer surface of the movable threaded rod 53 and the inner side of the fixed mounting hole 2, thereby making it easy to adjust and use.

[0035] In another embodiment, such as Figure 4 As shown, one side of the connecting mounting plate 55 and the fixed limiting collar 54 slides and fits against the inner and outer sides of one end of the movable mounting frame 51.

[0036] The connection and installation end plate 55 can rotate on the inner end of the movable installation frame 51, and the fixed limiting collar 54 can rotate on the outer end of the movable installation frame 51 to limit the movable threaded rod 53 and the rotating rod 56, which can be used stably and is easy to operate.

[0037] In another embodiment, such as Figure 4 As shown, the outer surface of the connecting limiting block 52 and the inner surface of the fixing groove 3 slide against each other.

[0038] The connection limit block 52 can be stably inserted into the inner side of the fixing groove 3, making operation convenient.

[0039] In another embodiment, such as Figure 5 As shown, the telescopic drill bit mechanism 6 includes a second drill bit 61. A connecting guide block 63 is symmetrically provided on the outer side of one end surface of the second drill bit 61, and a threaded inner hole 62 is opened on the inner side of the second drill bit 61.

[0040] When the movable threaded rod 53 rotates, it can cooperate with the threaded inner hole 62 to allow the second drill bit 61 and the connecting guide block 63 to move, so that the second drill bit 61 can move from the inside of the fixed mounting hole 2 to the outside.

[0041] In another embodiment, such as Figure 5 As shown, the threaded inner hole 62 and the movable threaded rod 53 slide and fit against each other.

[0042] The movable threaded rod 53 can cooperate with the threaded inner hole 62 when it rotates, so that the second drill bit 61 can move on the outside of the surface of the connecting limit block 52, making the operation convenient.

[0043] In another embodiment, such as Figure 5 As shown, the outer surface of the connecting guide block 63 slides and fits against the inner surface of the fixed guide groove 4.

[0044] The connection guide block 63 can move stably inside the fixed guide groove 4. At the same time, when the first drill bit 1 rotates, it can drive the second drill bit 61 to rotate through the connection between the fixed guide groove 4 and the connection guide block 63, making operation convenient.

[0045] The working principle of this utility model is as follows: During use, the rotating rod 56 can be rotated by a tool, which drives the connecting mounting plate 55, the movable threaded rod 53, and the fixed limiting collar 54 to rotate. When the movable threaded rod 53 rotates, the second drill bit 61 can move on the outer side of the surface of the movable threaded rod 53 and the inner side of the fixed mounting hole 2 under the action of the threaded inner hole 62. At the same time, the connecting guide block 63 can move on the inner side of the fixed guide groove 4, so that the second drill bit 61 can extend from the inner side of the first drill bit 1 to the outside, thereby processing deep holes of the size that are compatible with the telescopic drill bit mechanism 6. When the whole assembly is installed, the inner side of the external driving tool can clamp and fix the end of the first drill bit 1, and can restrict the distance between the end of the adjusting mechanism 5 and the end of the first drill bit 1, which can prevent the adjusting mechanism 5 from disengaging from the inner side of the first drill bit 1, so that the whole assembly can be used stably and is convenient and quick to operate.

[0046] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A high-strength step drill with limited retraction, comprising a first drill bit (1), characterized in that: The first drill bit (1) has a fixed mounting hole (2) inside. A fixed groove (3) is symmetrically provided at one end of the first drill bit (1). A fixed guide groove (4) is symmetrically provided inside the first drill bit (1). An adjustment mechanism (5) is movably placed inside the fixed groove (3) and the fixed guide groove (4). A telescopic drill bit mechanism (6) is movably provided outside the output end of the adjustment mechanism (5).

2. The high strength step drill according to claim 1, wherein: The adjustment mechanism (5) includes a movable mounting frame (51) located inside the fixed mounting hole (2). A connecting limit block (52) is symmetrically provided at one end of the movable mounting frame (51). A movable threaded rod (53) is movably connected inside the movable mounting frame (51). A fixed limit collar (54) is fixedly sleeved on the surface of the movable threaded rod (53). A connecting mounting end plate (55) is fixedly connected to one end of the movable threaded rod (53). A rotating rod (56) is fixedly connected to the side of the connecting mounting end plate (55) away from the movable threaded rod (53).

3. The high strength step drill according to claim 2, wherein: One side of the connecting mounting plate (55) and the fixed limiting collar (54) slides and fits against the inner and outer sides of one end of the movable mounting frame (51).

4. The high strength step drill of claim 2, wherein: The outer surface of the connecting limiting block (52) slides and fits against the inner side of the fixing groove (3).

5. The high strength step drill of claim 2, wherein: The telescopic drill bit mechanism (6) includes a second drill bit (61), with connecting guide blocks (63) symmetrically arranged on the outer side of one end surface of the second drill bit (61), and a threaded inner hole (62) opened on the inner side of the second drill bit (61).

6. The high strength step drill according to claim 5, wherein: The threaded inner hole (62) and the movable threaded rod (53) slide against each other.

7. The high strength step drill of claim 5, wherein: The outer surface of the connecting guide block (63) and the inner surface of the fixed guide groove (4) slide against each other.

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