Alloy wheel drill bit for drilling automobile hub

Abstract

The utility model discloses an alloy wheel drill bit for automobile hub drilling. The alloy wheel drill bit comprises a drill bit body, a drilling depth adjusting assembly and a limiting assembly. The automobile hub drill bit has the advantages that the drill bit body can conveniently conduct positioning drilling on an automobile hub through the positioning tip end, deviation of the drilling position is avoided, the drilling quality is guaranteed, waste chips in the drilling process can be conveniently discharged through the chip discharging groove, the situation that the waste chips are accumulated in a hole and affect the drilling quality is avoided, the drilling depth adjusting assembly is arranged, and the drilling depth adjusting assembly can adjust the drilling depth of the automobile hub. And the drilling depth can be determined according to actual use requirements, it is guaranteed that the drilling depths needed by the hub are consistent, and it is avoided that errors are large and follow-up use is affected.

Description

Technical Field

[0001] The utility model relates to a drill bit, in particular to an alloy wheel drill bit for drilling holes in automobile hubs, belonging to the technical field of drill bits. Background Art

[0002] The wheel hub is a cylindrical metal part with the inner profile of the tire supporting the tire and the center mounted on the shaft. It is also called a wheel rim, a steel rim, a wheel, or a tire bell. There are many types of wheel hubs depending on the diameter, width, molding method, and material. In order to install the wheel hub on the car, a drill is needed to process the threaded hole of the wheel hub.

[0003] Existing drill bits, such as a car wheel hub bolt hole drill bit disclosed in patent number CN209465745U, adopt a design of large-diameter cutting edges and small-diameter cutting edges, and use diamond sheets on the large-diameter cutting edges, spherical surfaces or conical surfaces, which improves processing efficiency, makes the bolt hole wall smoother after processing, improves production efficiency, and increases tool life. However, this type of drill bit cannot adjust the drilling depth during use, and only relies on human experience to judge the drilling depth, resulting in large drilling errors, which affects subsequent use. Utility Model Content

[0004] The purpose of the utility model is to provide an alloy wheel drill bit for drilling automobile hubs in order to solve at least one of the above technical problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: an alloy wheel drill bit for drilling holes in automobile hubs, comprising

[0006] The drill body is used to drill holes in automobile hubs, and is composed of a drill rod, a clamping head and a drill bit. The top end of the drill rod is fixedly connected to the clamping head, the bottom end of the drill rod is fixedly connected to the drill bit, and the surface of the drill bit is provided with spiral teeth.

[0007] A drilling depth adjustment assembly is used to adjust the drilling depth of the automobile hub, which is arranged on the surface of the drill rod and comprises a fixed ring fixedly sleeved on the surface of the drill rod, a movable ring slidably sleeved on the surface of the drill rod, and a threaded barrel rotatably connected to the surface of the fixed ring through a bearing, the internal thread of the threaded barrel is connected with a screw, and the screw and the movable ring are fixedly connected;

[0008] The limit assembly is used to limit the moving trajectory of the moving ring. It is arranged between the moving ring and the fixed ring, and includes a hollow outer rod fixedly connected to the bottom surface of the fixed ring and an inner rod fixedly connected to the surface of the moving ring. The inner rod is slidably connected in the hollow outer rod.

[0009] As a further solution of the utility model: a positioning tip is fixedly connected to the bottom end of the drill bit.

[0010] As a further solution of the utility model: a chip removal groove is provided on the surface of the drill rod.

[0011] As a further solution of the utility model: a hexagonal groove is provided on the surface of the threaded barrel.

[0012] As a further solution of the utility model: the inner surface of the movable ring is symmetrically fixedly connected with a limit slider, the surface of the drill rod is symmetrically provided with a limit slot, the limit slider is inserted in the limit slot, and the limit slider and the drill rod are slidably connected.

[0013] As a further solution of the utility model: a plurality of fixed columns are equidistantly fixedly connected to the bottom surface of the movable ring, and a ball is rollingly connected to the bottom end of each fixed column.

[0014] As a further solution of the utility model: the interior of the hollow outer rod is symmetrically provided with strip grooves, the surface of the inner rod is symmetrically fixedly connected with moving blocks, the moving blocks are inserted in the strip grooves, and the moving blocks and the hollow outer rod are slidably connected.

[0015] The beneficial effects of the utility model are:

[0016] By setting the positioning tip, it is convenient for the drill body to position and drill the automobile hub, avoiding deviation in the drilling position and ensuring the drilling quality;

[0017] By setting the chip removal groove, it is convenient to discharge the waste chips in the drilling process, so as to avoid the accumulation of waste chips in the hole and affect the drilling quality;

[0018] By setting the drilling depth adjustment component, it is helpful to determine the drilling depth according to actual use requirements, ensure that the drilling depth required by the wheel hub is consistent, and avoid large errors affecting subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 The structure of the drill bit body of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 4 The structure of the drill bit body of the utility model is shown in FIG. Figure 2 ;

[0023] Figure 5 This is a schematic diagram of the connection structure of the drilling depth adjustment component in the utility model;

[0024] Figure 6It is a schematic diagram of the cross-sectional structure of the limiting component in the utility model.

[0025] In the figure: 1. Clamping head; 2. Drill rod; 3. Drill bit; 4. Spiral cutter teeth; 5. Positioning tip; 6. Drilling depth adjustment assembly; 61. Fixed ring; 62. Threaded barrel; 63. Screw; 64. Moving ring; 65. Fixed column; 66. Ball; 67. Hexagonal groove; 68. Limit slider; 69. Limit slide groove; 7. Limit assembly; 71. Hollow outer rod; 72. Inner rod; 73. Moving block; 74. Strip groove; 8. Chip removal groove. DETAILED DESCRIPTION

[0026] 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. Embodiment 1

[0027] like Figures 1 to 6 As shown, an alloy wheel drill bit for drilling a hole in an automobile hub comprises

[0028] The drill body is used for drilling holes in automobile hubs, and is composed of a drill rod 2, a clamping head 1 and a drill bit 3. The top end of the drill rod 2 is fixedly connected to the clamping head 1, the bottom end of the drill rod 2 is fixedly connected to the drill bit 3, and the surface of the drill bit 3 is provided with spiral teeth 4;

[0029] A drilling depth adjustment assembly 6, which is used to adjust the drilling depth of the automobile hub, is arranged on the surface of the drill rod 2, and comprises a fixed ring 61 fixedly sleeved on the surface of the drill rod 2, a movable ring 64 slidably sleeved on the surface of the drill rod 2, and a threaded barrel 62 rotatably connected to the surface of the fixed ring 61 through a bearing, the internal thread of the threaded barrel 62 is connected with a screw 63, and the screw 63 and the movable ring 64 are fixedly connected;

[0030] The limiting assembly 7 is used to limit the moving trajectory of the moving ring 64. It is arranged between the moving ring 64 and the fixed ring 61, and includes a hollow outer rod 71 fixedly connected to the bottom surface of the fixed ring 61 and an inner rod 72 fixedly connected to the surface of the moving ring 64. The inner rod 72 is slidably connected in the hollow outer rod 71. Embodiment 2

[0031] like Figures 1 to 6 As shown, in addition to all the technical features of the first embodiment, this embodiment also includes:

[0032] The bottom end of the drill bit 3 is fixedly connected with a positioning tip 5, which is convenient for the drill bit body to position and drill holes on the automobile hub, avoids deviation in the drilling position, and ensures the drilling quality.

[0033] The surface of the drill rod 2 is provided with a chip removal groove 8, which is convenient for removing the waste chips during the drilling process and preventing the waste chips from accumulating in the hole and affecting the drilling quality.

[0034] A hexagonal groove 67 is provided on the surface of the threaded barrel 62. Before using this drill bit, the drilling depth can be determined according to actual usage requirements, and then the position of the movable ring 64 can be adjusted. When adjusting, the user can insert a hexagonal wrench into the hexagonal groove 67, and then turn the hexagonal wrench. The threaded barrel 62 can be driven to rotate by the hexagonal wrench. When the threaded barrel 62 rotates, it can drive the screw 63 to move in the threaded barrel 62, and then drive the movable ring 64 to slide up and down on the surface of the drill rod 2, thereby changing the position of the movable ring 64, and then adjusting the drilling depth.

[0035] The bottom surface of the movable ring 64 is equidistantly fixedly connected with a plurality of fixed columns 65, and the bottom end of each fixed column 65 is rollingly connected with a ball 66. During use, as the drilling depth continues to deepen, when the ball 66 rolls on the surface of the workpiece, it means that the drilling depth is in place and the drill bit can be stopped. Embodiment 3

[0036] like Figures 1 to 6 As shown, in addition to all the technical features of the first embodiment, this embodiment also includes:

[0037] The inner surface of the movable ring 64 is symmetrically fixedly connected with a limit slide block 68, and the surface of the drill rod 2 is symmetrically provided with a limit slide groove 69, in which the limit slide block 68 is inserted. The limit slide block 68 and the drill rod 2 are slidably connected, and the moving trajectory of the movable ring 64 can be limited.

[0038] The inside of the hollow outer rod 71 is symmetrically provided with strip grooves 74, and the surface of the inner rod 72 is symmetrically fixedly connected with moving blocks 73, which are inserted into the strip grooves 74. The moving blocks 73 and the hollow outer rod 71 are slidably connected to ensure the stability of the moving ring 64 during the movement process.

[0039] Working principle: Before using this drill bit, the drilling depth can be determined according to actual use requirements, and then the position of the movable ring 64 can be adjusted. When adjusting, the user can insert a hexagonal wrench into the inner hexagonal groove 67, and then turn the hexagonal wrench. The threaded barrel 62 can be driven to rotate by the hexagonal wrench. When the threaded barrel 62 rotates, the screw 63 can be driven to move in the threaded barrel 62, and then the movable ring 64 can be driven to slide up and down on the surface of the drill rod 2, thereby changing the position of the movable ring 64, and then the drilling depth can be adjusted, and then the adjustment can be made. The completed drill body is installed on the machine tool and fixed to the clamping position of the machine tool by the clamping head 1. Then the wheel hub can be drilled. During the drilling process, the drilling position of the wheel hub can be quickly located by the positioning tip 5. The waste chips generated by milling during drilling can be discharged through the chip groove 8 to avoid the accumulation of waste chips in the hole affecting the drilling quality. During use, as the drilling depth continues to deepen, when the ball 66 rolls on the surface of the workpiece, it means that the drilling depth is in place at this time, and the drill bit can be stopped. The drilling depth can be adjusted to ensure consistent drilling depth.

[0040] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0041] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An alloy wheel drill bit for drilling holes in automobile hubs, It is characterized in that include A drill bit body, which is used for drilling holes in automobile hubs, and is composed of a drill rod (2), a clamping head (1) and a drill bit (3); the top end of the drill rod (2) is fixedly connected to the clamping head (1), the bottom end of the drill rod (2) is fixedly connected to the drill bit (3), and the surface of the drill bit (3) is provided with spiral cutter teeth (4); A drilling depth adjustment assembly (6) for adjusting the drilling depth of an automobile hub, which is arranged on the surface of the drill rod (2), and comprises a fixed ring (61) fixedly sleeved on the surface of the drill rod (2), a movable ring (64) slidably sleeved on the surface of the drill rod (2), and a threaded barrel (62) rotatably connected to the surface of the fixed ring (61) via a bearing, wherein the internal thread of the threaded barrel (62) is connected to a screw rod (63), and the screw rod (63) and the movable ring (64) are fixedly connected; A limit assembly (7) for limiting the moving trajectory of the moving ring (64), which is arranged between the moving ring (64) and the fixed ring (61), and comprises a hollow outer rod (71) fixedly connected to the bottom surface of the fixed ring (61) and an inner rod (72) fixedly connected to the surface of the moving ring (64), wherein the inner rod (72) is slidably connected inside the hollow outer rod (71).

2. An alloy wheel drill bit for drilling a hole in an automobile hub according to claim 1, Features: The bottom end of the drill bit (3) is fixedly connected with a positioning tip (5), which facilitates the drill bit body to position and drill holes in the automobile hub, avoids deviation in the drilling position, and ensures the drilling quality.

3. The alloy wheel drill bit for drilling a hole in an automobile hub according to claim 1, Features: A chip removal groove (8) is provided on the surface of the drill rod (2).

4. The alloy wheel drill bit for drilling a hole in an automobile hub according to claim 1, Features: A hexagonal groove (67) is formed on the surface of the threaded barrel (62).

5. The alloy wheel drill bit for drilling a hole in an automobile hub according to claim 4, Features: The inner surface of the movable ring (64) is symmetrically fixedly connected with a limit slide block (68), and the surface of the drill rod (2) is symmetrically provided with a limit slide groove (69), and the limit slide block (68) is inserted into the limit slide groove (69). The limit slide block (68) and the drill rod (2) are slidably connected, so as to limit the moving trajectory of the movable ring (64).

6. The alloy wheel drill bit for drilling a hole in an automobile hub according to claim 5, Features: The bottom surface of the movable ring (64) is fixedly connected to a plurality of fixed columns (65) at equal intervals, and the bottom end of each fixed column (65) is rollingly connected to a ball (66).

7. The alloy wheel drill bit for drilling a hole in an automobile hub according to claim 1, Features: The hollow outer rod (71) is symmetrically provided with strip grooves (74) inside, and the surface of the inner rod (72) is symmetrically fixedly connected with a moving block (73), the moving block (73) is inserted into the strip grooves (74), and the moving block (73) and the hollow outer rod (71) are slidably connected.

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