Electric drill accurate in drilling

Abstract

The electric drill comprises an electric drill body, supporting blocks are fixedly connected to the surfaces of the two sides of the electric drill body, positioning columns are fixedly connected to one ends of the supporting blocks, contraction grooves are formed in the positioning columns, telescopic springs are fixedly connected to one ends of the interiors of the contraction grooves, and sliding rods are fixedly connected to the tail ends of the telescopic springs. A limiting groove is formed in the surface of the positioning column, supporting plates are fixedly connected to the two sides of the surface of the electric drill body, a limiting frame is in threaded connection with the surface of the threaded transmission rod, and an electric drill bit is fixedly installed at one end of the electric drill body. The electric drill has the advantages that the electric drill is placed on the two sides of a drilling point during drilling through the sliding rods installed in the positioning columns in a sliding mode, the drilling point can be positioned more conveniently, the two sides of the bottom of the limiting frame are driven by the threaded transmission rods to move to the fixing points in the limiting grooves, contraction of the sliding rods is limited, and the drilling point can be conveniently positioned. Accurate control over the drilling depth of the electric drill bit is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric drills, in particular to an electric drill with precise drilling performance. Background Art

[0002] In the current fields of building decoration or furniture manufacturing, electric drills are an indispensable tool, and their performance and operating accuracy directly affect work efficiency and the quality of the final product. Although there are many types of electric drills on the market, such as hand drills, impact drills and hammer drills, which meet the drilling needs of different materials to a certain extent, they still face some technical limitations in achieving accurate drilling.

[0003] First, traditional electric drills often rely on the operator's visual judgment to locate the drilling point. This manual method is difficult to ensure that the target position can be accurately aligned every time when dealing with small and precise drilling operations. Especially in application scenarios with high precision requirements, positioning deviations may cause material damage or functional failure. Secondly, in the early stage of drilling, due to the lack of an effective guidance mechanism, the lateral force generated by the moment the drill bit contacts the material can easily cause the drilling point to shift, which not only affects the straightness of the drilled hole, but also increases the difficulty and cost of subsequent processing. In addition, most existing electric drills are achieved by setting a limit ring or relying on the operator's experience to manually stop. This method is difficult to achieve accurate depth control in actual operation, especially when drilling multiple holes of the same depth continuously. The repeatability is poor, which can easily cause different hole depths, affecting the tightness and aesthetics of assembly or connection. For the problems in the relevant technology, no effective solution has been proposed yet. Therefore, it is necessary to propose an electric drill with accurate drilling to solve the above-mentioned problems. Utility Model Content

[0004] In view of the problems in the related technology, the utility model provides an electric drill with precise drilling to overcome the above technical problems existing in the existing related technology.

[0005] To this end, the specific technical solutions adopted by the utility model are as follows:

[0006] The invention discloses an electric drill for drilling accurately, comprising an electric drill body, support blocks fixedly connected to the two side surfaces of the electric drill body, a positioning column fixedly connected to one end of the support block, a contraction groove is provided inside the positioning column, a telescopic spring is fixedly connected to one end inside the contraction groove, a sliding rod is fixedly connected to the end of the telescopic spring, one end of the sliding rod is slidably installed in the contraction groove, a limiting groove is provided on the surface of the positioning column, support plates are fixedly connected to the two side surfaces of the electric drill body, a threaded transmission rod is rotatably connected inside the support plate, the surface of the threaded transmission rod is threadedly connected to a limiting frame, two ends of the bottom of the limiting frame are slidably installed in the limiting groove, one side of the surface of the sliding rod passes through the limiting groove and is fixedly connected to the positioning plate, and an electric drill head is fixedly installed at one end of the electric drill body.

[0007] Furthermore, in order to achieve telescopic adjustment of the end of the sliding rod, an adjustment groove is opened inside the sliding rod, the internal thread of the adjustment groove is connected to an adjustment threaded rod, and an anti-slip rubber sleeve is fixedly installed at the end of the adjustment threaded rod.

[0008] Furthermore, in order to facilitate accurate adjustment and observation of the drilling depth, scale lines are provided on one side of the surface of the positioning column.

[0009] Furthermore, in order to facilitate the use of the electric drill body, a hand-held handle is fixedly connected to one side of the bottom of the electric drill body, and a push switch is slidably installed on one side of the surface of the hand-held handle.

[0010] Furthermore, in order to facilitate the rotation of the threaded transmission rod, a screwing head is movably and fixedly connected to the threaded transmission rod.

[0011] Furthermore, in order to retract the sliding rod into the interior of the positioning rod when not in use, a sealing cover is rotatably mounted on the end of the positioning column.

[0012] Furthermore, in order to provide power to the electric drill body, a battery is fixedly installed at the bottom of the handheld handle, and a power interface is opened on one side surface of the battery.

[0013] The beneficial effects of the utility model are as follows: the sliding rods slidably installed in the positioning rods on both sides of the motor body can place the electric drill head on both sides of the drilling point during drilling, so as to assist the electric drill head in aiming at the drilling center, thereby achieving accurate drilling of the drilling point when the electric drill body is in use, and effectively preventing the deviation of the drilling position; the bottom ends of the limit frame are driven by the threaded transmission rod to move in the limit groove, so that the limit frame moves to a precise position to limit the contraction of the sliding rod, thereby achieving accurate control of the drilling depth when the electric drill is working, and making the use of the electric drill more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the surface structure of an electric drill with precise drilling according to an embodiment of the utility model;

[0016] Figure 2 It is an internal cross-sectional view of a positioning rod in an electric drill for accurate drilling according to an embodiment of the utility model;

[0017] Figure 3 It is an internal cross-sectional view of a sliding rod in an electric drill for precise drilling according to an embodiment of the utility model;

[0018] Figure 4 The utility model is a side view of an electric drill with high drilling precision according to an embodiment of the utility model.

[0019] In the figure:

[0020] 1. Electric drill body; 2. Support block; 3. Positioning column; 4. Contraction slot; 5. Telescopic spring; 6. Sliding rod; 7. Limiting slot; 8. Support plate; 9. Threaded transmission rod; 10. Limiting frame; 11. Positioning plate; 12. Electric drill head; 13. Adjustment slot; 14. Adjustment threaded rod; 15. Anti-slip rubber sleeve; 16. Scale line; 17. Hand grip; 18. Press switch; 19. Twist head; 20. Sealing cover; 21. Battery; 22. Power interface. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] According to an embodiment of the utility model, an electric drill with precise drilling performance is provided.

[0023] Embodiment 1:

[0024] like Figure 1-Figure 4As shown, according to an embodiment of the utility model, an electric drill for drilling accurately comprises an electric drill body 1, a pair of support blocks 2 are fixedly connected to the two side surfaces of the electric drill body 1, a positioning column 3 is fixedly connected to one side close to the output end of the motor body on each support block 2, a cylindrical contraction groove 4 is opened inside the positioning column 3, a telescopic spring 5 is fixedly connected to one end of the contraction groove 4, a sliding rod 6 is fixedly connected to the end of the telescopic spring 5, one end of the sliding rod 6 is slidably installed in the contraction groove 4, a limiting groove 7 is opened on the surface of the positioning column 3, and a fixedly connected one side of the surface of the electric drill body 1 is fixedly connected to the two sides of the surface of the electric drill body 1. The support plate 8 is rotatably connected with a threaded transmission rod 9 inside the support plate 8, and the surface of the threaded transmission rod 9 is threadedly connected with a limit frame 10. The two ends of the bottom of the limit frame 10 are slidably installed in the limit groove 7. One side of the surface of the sliding rod 6 passes through the limit groove 7 and is fixedly connected with a positioning plate 11. The threaded transmission rod 9 drives the limit frame 10 to move, which is used to change the positions of the two ends of the bottom of the limit frame 10 in the limit groove 7, so as to realize the contraction limit of the sliding rod 6 and the positioning plate 11 at different positions. An electric drill head 12 is fixedly installed at one end of the electric drill body 1 for drilling when the electric drill is working.

[0025] like Figure 1-Figure 4 As shown, an adjusting groove 13 is provided inside the sliding rod 6, and an adjusting threaded rod 14 is connected to the inner thread of the adjusting groove 13. By twisting to change the position of the adjusting threaded rod 14 in the adjusting groove 13, the electric drill head 12 can stably support the material at the uneven surface when drilling; an anti-skid rubber sleeve 15 is fixedly installed at the end of the adjusting threaded rod 14, and the friction force when the anti-skid rubber sleeve 15 contacts the surface of the material to be drilled is used to prevent the drilling point from shifting during drilling; a scale line 16 is provided on one side of the surface of the positioning column 3, and the drilling depth can be accurately adjusted by observing the scale line 16; a hand-held A handle 17 is slidably mounted with a push switch 18 on one side of the surface of the hand-held handle 17, which is used to facilitate the electric drill body 1 to be picked up and then press the push switch 18 to start the rotation of the electric drill bit 12; a screwing head 19 is fixedly connected to the movable threaded transmission rod 9 to facilitate the screwing and rotation of the threaded transmission rod 9; a sealing cover 20 is rotatably mounted on the end of the positioning column 3, which is used to limit the sliding rod 6 by rotating the sealing cover 20 after the sliding rod 6 is retracted into the positioning column 3 when the electric drill is not in use; a battery 21 is fixedly mounted on the bottom of the hand-held handle 17, and a power interface 22 is provided on one side of the battery 21 to provide power to the electric drill body 1.

[0026] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0027] In summary, with the aid of the above technical solution of the utility model, in actual use, the threaded transmission rod 9 is rotated by twisting the head 19, so that the threaded transmission rod 9 drives the bottom ends of the surface limit frame 10 to slide in the limit groove 7, and moves it to a position where the distance from the positioning plate 11 is the same as the depth required for drilling, and the anti-skid rubber sleeves 15 at the ends of the two adjustment threaded rods 14 are placed on both sides of the drilling point, so that the distances from the two anti-skid rubber sleeves 15 to the drilling point are the same, and the electric drill body 1 is started by pressing the switch, so that it drives the electric drill head 12 to rotate continuously , and then the electric drill body 1 is pushed in the direction of the material to be drilled, so that the sliding rod 6 squeezes the telescopic spring 5, and then gradually shrinks it into the positioning column 3, so that the electric drill bit 12 can contact and drill the material to be processed. While the sliding rod 6 slides and shrinks, it drives the positioning plate 11 on its surface to move continuously. When the positioning plate 11 moves to one side of the limit frame 10, due to the limitation of the bottom ends of both sides of the limit frame 10, the positioning plate 11 and the sliding rod 6 cannot continue to shrink and move. At this time, the end of the electric drill bit 12 just reaches the required depth for drilling, thereby accurately completing the drilling process.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric drill with high drilling accuracy, characterized in that: The electric drill body (1) comprises an electric drill body (1), wherein two side surfaces of the electric drill body (1) are fixedly connected with support blocks (2), one end of the support block (2) is fixedly connected with a positioning column (3), a contraction groove (4) is provided inside the positioning column (3), one end of the contraction groove (4) is fixedly connected with a telescopic spring (5), the end of the telescopic spring (5) is fixedly connected with a sliding rod (6), one end of the sliding rod (6) is slidably mounted in the contraction groove (4), a limiting groove (7) is provided on the surface of the positioning column (3), support plates (8) are fixedly connected with two sides of the surface of the electric drill body (1), a threaded transmission rod (9) is rotatably connected inside the support plate (8), the surface of the threaded transmission rod (9) is threadedly connected with a limiting frame (10), the bottom ends of the limiting frame (10) are slidably mounted in the limiting groove (7), one side of the surface of the sliding rod (6) passes through the limiting groove (7) and is fixedly connected with a positioning plate (11), and one end of the electric drill body (1) is fixedly mounted with an electric drill head (12).

2. The electric drill for precise drilling according to claim 1, characterized in that: An adjusting groove (13) is formed inside the sliding rod (6), an adjusting threaded rod (14) is connected to the inner thread of the adjusting groove (13), and a non-slip rubber sleeve (15) is fixedly mounted at the end of the adjusting threaded rod (14).

3. The electric drill for precise drilling according to claim 1, characterized in that: One side of the surface of the positioning column (3) is provided with a scale mark (16).

4. The electric drill for accurate drilling according to claim 1, characterized in that: A hand-held handle (17) is fixedly connected to one side of the bottom of the electric drill body (1), and a push switch (18) is slidably mounted on one side of the surface of the hand-held handle (17).

5. The electric drill for accurate drilling according to claim 1, characterized in that: One end of the threaded transmission rod (9) is fixedly connected to a screwing head (19).

6. The electric drill for accurate drilling according to claim 1, characterized in that: A sealing cover (20) is rotatably mounted on the end of the positioning column (3).

7. The electric drill for precise drilling according to claim 4, characterized in that: A storage battery (21) is fixedly mounted on the bottom of the handheld handle (17), and a power supply interface (22) is provided on one side surface of the storage battery (21).

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