Plane spot-facing drill

Abstract

The utility model discloses a plane spot-facing drill, relates to the technical field of spot-facing drills, and aims to solve the problem that when the extension length of an existing drill needs to be adjusted, a cutter bar needs to be taken down from equipment, so that the machining efficiency is affected. A locking mechanism is arranged on the cutter bar, an adjusting mechanism is arranged below the locking mechanism, and the extending length of the drill bit is controlled through the adjusting mechanism; by means of the structure arranged on the cutter bar and the adjusting mechanism arranged on the cutter bar in a matched mode, when a worker needs to adjust the extending length of a drill bit, the worker only needs to pause equipment and manually rotate an adjusting piece in a rotating hole, and the adjusting piece is matched with an ejector rod and a fixing nut, so that the ejector rod moves in the adjusting hole, the drill bit is pushed upwards, and then the drill bit can be adjusted. And meanwhile, the drill bit slides in the mounting groove and the positioning groove, so that the extending length of the drill bit is adjusted to meet different machining requirements, and compared with an existing adjusting mode, the design scheme is convenient, rapid, time-saving and labor-saving.

Description

Technical Field

[0001] This utility model relates to the field of countersinking drill technology, and in particular to a planar countersinking drill. Background Technology

[0002] Existing countersinking drills are usually used in combination with countersinking cutters and drill bits. However, when it is necessary to adjust the drill bit during use, the operator often needs to remove the cutter bar from the equipment and use the corresponding tool from the end of the cutter bar to adjust the extension length of the drill bit. This adjustment method is not only time-consuming and labor-intensive, but also affects processing efficiency.

[0003] Therefore, this application provides a planar countersink drill to meet the requirements. Utility Model Content

[0004] The purpose of this application is to provide a flat countersink drill, which aims to solve the problem that existing drill bits require the tool holder to be removed from the equipment when the extension length needs to be adjusted, thus affecting the processing efficiency.

[0005] To achieve the above objectives, this application provides the following technical solution: a planar countersunk drill, including a tool holder, a countersunk cutter detachably mounted on the top surface of the tool holder, and a drill bit detachably mounted in the middle of the tool holder, a locking mechanism provided on the tool holder, and an adjustment mechanism provided below the locking mechanism, the extension length of the drill bit being controlled by the adjustment mechanism;

[0006] The top surface of the tool holder is provided with a mounting groove, the bottom surface of the mounting groove is provided with a positioning groove with a polygonal cross-section, the bottom surface of the positioning groove is provided with an adjustment hole, and the inner wall of the adjustment hole is provided with two sets of symmetrical rotating holes; the drill bit is inserted into the mounting groove and the positioning groove.

[0007] Preferably, the adjusting mechanism includes a fixed nut, an adjusting component, and a push rod. A set of fixed nuts is installed in the adjusting hole, and a push rod is threaded onto the fixed nuts. The inner diameter of the fixed nuts is smaller than the diameter of the positioning groove. An adjusting component is rotatably connected in the rotating hole. The push rod is a cross rod, and the adjusting component and the push rod are slidably connected up and down. The top surface of the push rod is slidably connected to the bottom surface of the drill bit.

[0008] Preferably, the outer wall of the tool holder is provided with a groove, and the groove is connected to the rotating hole.

[0009] Preferably, the adjusting component is an assembly and is connected by bolts. The adjusting component has a through hole in the middle that is open to both the upper and lower parts. A protruding positioning block is provided on the inner wall of the through hole, and the positioning block is adapted to the top rod.

[0010] Preferably, the outer wall of the adjusting member is provided with friction strips.

[0011] Preferably, the locking mechanism includes a first fixing bolt and a second fixing bolt. The inner wall of the positioning groove is provided with two sets of external fixing holes. The first fixing bolt and the second fixing bolt are threaded into the two sets of fixing holes respectively. The end face of the first fixing bolt is provided with a cross groove, and the end face of the second fixing bolt is provided with a hexagonal groove.

[0012] In summary, the technical effects and advantages of this utility model are as follows:

[0013] This invention, through a structure on the tool holder and an adjustment mechanism thereon, allows operators to adjust the drill bit's extension length simply by pausing the equipment and manually rotating the adjusting component inside the rotating hole. The adjusting component, along with the push rod and fixing nut, moves the push rod within the adjustment hole, pushing the drill bit upwards. Simultaneously, the drill bit slides within the mounting and positioning slots, thus adjusting the drill bit's extension length to meet different processing requirements. Compared to existing adjustment methods, this design is convenient, quick, and saves time and effort. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0016] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the exploded structure of this utility model.

[0019] In the diagram: 1. Tool holder; 101. Mounting slot; 102. Positioning slot; 103. Adjustment hole; 104. Fixing hole; 105. Slot; 106. Rotation hole; 2. Drill bit; 3. Countersink; 4. Fixing nut; 5. Adjusting component; 501. Through hole; 502. Positioning block; 6. Top rod; 7. Fixing bolt No. 1; 8. Fixing bolt No. 2. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Reference Figure 1-4 The planar countersunk drill shown includes a tool holder 1, a drill bit 2, and countersunk cutters 3. Two sets of countersunk cutters 3 are provided on the top surface of the tool holder 1, and the drill bit 2 is installed in the middle of the tool holder 1. The drill bit 2 is fixed by a locking mechanism. In order to facilitate the adjustment of the extension length of the drill bit 2, an adjustment mechanism is provided on the outer wall of the tool holder 1. The adjustment mechanism in this embodiment solves the problem that the tool holder 1 needs to be removed from the equipment every time the drill bit 2 is adjusted, thus improving the processing efficiency.

[0022] As one embodiment of this example, the tool holder 1 has a mounting groove 101 on its top surface and a positioning groove 102 in the middle of the bottom surface of the mounting groove 101. The positioning groove 102 has a polygonal cross-section. The upper part of the drill bit 2 is located in the mounting groove 101 and the lower part is located in the positioning groove 102. The bottom surface of the positioning groove 102 has an adjustment hole 103 that communicates with the outside. The inner wall of the adjustment hole 103 has two sets of symmetrical rotating holes 106. The outer wall of the tool holder 1 has two sets of symmetrical slots 105 that are adapted to the rotating holes 106. The inner wall of the positioning groove 102 has two sets of symmetrical fixing holes 104.

[0023] As one embodiment of this invention, the locking mechanism consists of a first fixing bolt 7 and a second fixing bolt 8 threadedly connected to two sets of fixing holes 104. The inner end faces of both the first fixing bolt 7 and the second fixing bolt 8 are slidably connected to the lower part of the drill bit 2. The outer end of the first fixing bolt 7 is provided with a cross groove, and the outer end face of the second fixing bolt 8 is provided with a hexagonal groove. Through the above structural design, the drill bit 2 can be fixed at two points, and various tools can be used to release the limitation on the drill bit 2, which is convenient for operators.

[0024] As one embodiment of this invention, the adjustment mechanism 5 is an assembly that is a separate structure before installation for easy installation and disassembly. A set of fixing nuts 4 are installed inside the adjustment hole 103, and a push rod 6 is threaded onto the fixing nuts 4. The push rod 6 has a cross-shaped cross section. A through hole 501 is provided in the middle of the adjustment component 5. The through hole 501 is slidably connected to the outer wall of the push rod 6. A positioning block 502 is provided on the inner wall of the through hole 501. The positioning block 502 is adapted to the groove on the push rod 6. Therefore, in use, the adjustment component 5 is inserted from the rotating holes 106 on both sides. After the adjustment component 5 is aligned, bolts are used to fix the adjustment component 5. Then, by rotating the adjustment component 5, the push rod 6 is rotated, causing the push rod 6 to push the drill bit 2 upward, thus changing the extension length of the drill bit 2.

[0025] The slotted design 105 shortens the distance between the adjusting component 5 and the outside world, making it easier to rotate the adjusting component 5. Friction strips are provided on the outer wall of the adjusting component 5 to increase the friction during use.

[0026] The working principle of this practical tool is as follows: After pausing the equipment and stopping the rotation of the tool holder 1, first unscrew the first fixing bolt 7 or the second fixing bolt 8 in the fixing hole 104. Then, place your finger in the slot 105 and make your finger contact the adjusting part 5 in the rotating hole 106. Then rotate the adjusting part 5. The adjusting part 5 cooperates with the push rod 6 through the positioning block 502 on the inner wall of the through hole 501. The push rod 6 cooperates with the fixing nut 4 in the adjusting hole 103, so that the push rod 6 moves up or down, thereby changing the sliding distance of the drill bit 2 in the mounting slot 101 and the positioning slot 102. After the adjustment is completed, unscrew the first fixing bolt 7 or the second fixing bolt 8 back to the original position to fix the drill bit 2 again. Then restart the equipment to make the drill bit 2 contact the countersink 3 and continue processing.

[0027] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0028] Components not described in detail in this article are existing technologies.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flat countersinking drill comprising a shank (1), a countersinking bit (3) detachably mounted on the top surface of the shank (1), and a drill bit (2) detachably mounted on the middle portion of the shank (1), characterized in that: The locking mechanism is arranged on the cutter bar (1), and the adjusting mechanism is arranged below the locking mechanism to control the extension length of the drill bit (2); The top surface of the cutter bar (1) is provided with a mounting groove (101), the bottom surface of the mounting groove (101) is provided with a positioning groove (102) with a polygonal cross section, the bottom surface of the positioning groove (102) is provided with an adjusting hole (103), and two groups of symmetrical rotating holes (106) are arranged on the inner wall of the adjusting hole (103); and the drill bit (2) is inserted into the mounting groove (101) and the positioning groove (102).

2. A flat countersink according to claim 1 wherein: The adjusting mechanism comprises a fixed nut (4), an adjusting part (5) and a top rod (6), one group of fixed nuts (4) are arranged in the adjusting hole (103), the top rod (6) is threadedly connected to the fixed nut (4), the inner diameter of the fixed nut (4) is smaller than the diameter of the positioning groove (102), and the adjusting part (5) is rotatably connected in the rotating hole (106); the top rod (6) is a cross rod, the adjusting part (5) is slidably connected to the top rod (6), and the top surface of the top rod (6) is slidably connected to the bottom surface of the drill bit (2).

3. A flat countersink according to claim 2, wherein: The outer wall of the cutter bar (1) is provided with a slot (105), and the slot (105) is in communication with the rotating hole (106).

4. A flat countersink according to claim 2, wherein: The adjusting part (5) is a combined part and is connected by bolts, the middle part of the adjusting part (5) is provided with a through hole (501) communicating upward and downward, the inner wall of the through hole (501) is provided with a protruding positioning block (502), and the positioning block (502) is matched with the top rod (6).

5. A flat countersink according to claim 4, wherein: The outer wall of the adjusting part (5) is provided with a friction strip.

6. A flat countersink according to claim 2 wherein: The locking mechanism comprises a first fixed bolt (7) and a second fixed bolt (8), the inner wall of the positioning groove (102) is provided with two groups of external fixed holes (104), the first fixed bolt (7) and the second fixed bolt (8) are respectively threadedly connected in the two groups of fixed holes (104), and the end surface of the first fixed bolt (7) is provided with a cross groove, and the end surface of the second fixed bolt (8) is provided with a hexagonal groove.

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