Flexible positioning tool for inserted hob drill bit drilling

Abstract

The utility model discloses a flexible positioning tool for inserted hob drill bit drilling, which comprises a base and a pitching mechanism arranged above the base, and further comprises a lateral moving mechanism arranged above the pitching mechanism, the pitching mechanism comprises a semicircular support, a servo motor, an arc-shaped groove, a gear ring, a driving gear and a workbench, the lateral moving mechanism comprises a screw rod, a mounting plate, a driving block and a turntable; a servo motor drives a driving gear to rotate, the driving gear drives a semicircular support to rotate along an arc-shaped groove through a gear ring, and therefore a workbench is driven to conduct pitching adjustment, and the flexible positioning tool for inserted hob drill bit drilling conducts multi-angle adjustment on the drilling direction in the using process; the lead screw drives the mounting plate to move through the driving block, the lead screw is in transmission fit with the driving block, the accuracy of adjustment of the inserted tooth hob drill bit is guaranteed, and the functionality of the inserted tooth hob drill bit drilling positioning tool is enriched.

Description

Technical Field

[0001] This utility model relates to the field of positioning technology for toothed hob drill bits, and in particular to a flexible positioning fixture for drilling with toothed hob drill bits. Background Technology

[0002] Inserted tooth hobbing drill bits are a special type of drill bit that features an inserted tooth design and hobbing function. An inserted tooth hobbing drill bit typically consists of a drill body with several cutting edges mounted on it. These cutting edges are embedded into the drill body through a special design and technology, forming an inserted tooth structure. This design allows the drill bit to better cut and break materials during drilling, improving drilling efficiency and extending the drill bit's lifespan.

[0003] In addition, the toothed hob drill bit also has a hobbing function, that is, while the drill bit is rotating, its cutting head also rolls. This rolling action can further increase the cutting force, making the drill bit able to penetrate various materials more easily.

[0004] In the prior art, Chinese utility model patent CN210118131U discloses a toothed hobbing drill bit with a good shock absorption mechanism, including a drill frame and a toothed hobbing drill body. The drill frame has a concave longitudinal section, and a first positioning plate and a second positioning plate are welded to the top positions of the outer walls on both sides of the drill frame that are close to each other. A connecting shaft is provided between the first positioning plate and the second positioning plate, and a guide groove is formed between the middle positions of the outer walls on both sides of the toothed hobbing drill body. Four sets of empty grooves are formed on the outer surface of the toothed hobbing drill body from left to right. A first rubber block and a second rubber block are horizontally fixedly sleeved on both sides of the outer surface of the connecting shaft. Springs are fixedly connected to the top and bottom positions of the outer walls on the sides of the first positioning plate and the second positioning plate that are close to each other. In this utility model, the buffer structure on both sides of the toothed hobbing drill bit gives the drill bit a good shock absorption effect, and at the same time, it can be positioned during the operation of the toothed hobbing drill bit.

[0005] Problems compared with existing technologies: Some existing toothed hobbing drill bits cannot adjust the drilling direction at multiple angles during operation and have poor positioning accuracy, resulting in the need to improve the functionality of the toothed hobbing drill bit drilling positioning tool.

[0006] Therefore, there is an urgent need for flexible positioning fixtures for drilling with toothed hobs. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a flexible positioning fixture for drilling with toothed hob drill bits.

[0008] The present invention solves its technical problem through the following technical solution: It includes a base, a pitch mechanism disposed above the base for adjusting the pitch angle of the toothed hobbing drill bit, and a lateral movement mechanism disposed above the pitch mechanism for adjusting the position of the toothed hobbing drill bit. The pitch mechanism includes a semi-circular bracket rotatably connected to the top of the base. A servo motor is disposed inside the base. An arc-shaped groove is disposed on the top of the base and slidably connected to the semi-circular bracket. A gear ring is disposed on the outer side of the semi-circular bracket. A drive gear is disposed on the rotating end of the servo motor. A worktable is disposed above the semi-circular bracket. The lateral movement mechanism includes a lead screw rotatably connected to the middle position of the worktable. A mounting plate is disposed above the worktable, and a drive block is disposed below the mounting plate. The drive block is drively connected to the lead screw. A turntable is disposed at one end of the lead screw.

[0009] As a further embodiment of this utility model: an installation mechanism is provided above the mounting plate for installing the toothed hobbing drill bit. The installation mechanism includes a side plate, which is welded to both ends of the mounting plate. A limit plate is provided on one side of the side plate, and the toothed hobbing drill bit body is provided in the middle of the limit plate.

[0010] As a further embodiment of this utility model: the limiting plate is provided with a buffer mechanism inside, which is used to buffer the vibration during the rotation of the toothed hobbing drill bit. The buffer mechanism includes a cavity, which is uniformly cut inside the limiting plate. A helical spring is provided inside the cavity, and a pressing block is provided at one end of the helical spring. A ball bearing is provided at one end of the pressing block.

[0011] As a further improvement of this utility model, the outer side of the base is provided with multiple support legs.

[0012] As a further improvement of this utility model: the workbench is provided with sliding grooves on both sides, and the mounting plate is provided with strip plates on both sides, the strip plates being slidably connected to the sliding grooves.

[0013] As a further improvement of this utility model, the outer side of the limiting plate is provided with a plurality of heat dissipation holes.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0015] 1. The servo motor drives the drive gear to rotate, and the drive gear drives the semi-circular bracket to rotate along the arc groove through the gear ring, thereby driving the worktable to adjust the pitch, so that the flexible positioning fixture of the toothed hob drill bit can adjust the drilling direction at multiple angles during use.

[0016] 2. The turntable drives the lead screw to rotate, and the lead screw drives the mounting plate to move through the drive block. The transmission between the lead screw and the drive block ensures the accuracy of the adjustment of the toothed hob drill bit, thus enriching the functionality of the toothed hob drill bit drilling positioning fixture.

[0017] 3. By using ball bearings, the friction between the limiting plate and the toothed hob body is reduced, and multiple helical springs elastically compress the extrusion block, reducing vibration during the rotation of the toothed hob and improving the stability of the rotation process. Attached Figure Description

[0018] Figure 1 A schematic diagram of an isometric structure according to an embodiment of the present invention is shown;

[0019] Figure 2 A side sectional view of the structure according to an embodiment of the present invention is shown;

[0020] Figure 3 The present invention provides an embodiment of the present invention. Figure 2 A magnified view of the structure at point A in the middle;

[0021] Figure 4 A schematic diagram of the front cross-sectional structure according to an embodiment of the present invention is shown;

[0022] Figure 5 The present invention provides an embodiment of the present invention. Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0023] Legend:

[0024] 100. Base; 110. Support leg; 210. Slide groove; 220. Strip plate; 310. Heat dissipation hole;

[0025] 101. Servo motor; 102. Arc groove; 103. Semicircular bracket; 104. Gear ring; 105. Drive gear; 106. Worktable;

[0026] 201. Lead screw; 202. Mounting plate; 203. Drive block; 204. Turntable;

[0027] 301. Side plate; 302. Limiting plate; 303. Toothed hob body;

[0028] 401. Cavity; 402. Helical spring; 403. Extrusion block; 404. Ball bearing. Detailed Implementation

[0029] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] Example 1:

[0033] like Figure 1-4As shown, a flexible positioning fixture for drilling with a toothed hob includes a base 100, a pitch mechanism mounted above the base 100 for adjusting the pitch angle of the toothed hob, and a lateral movement mechanism mounted above the pitch mechanism for adjusting the position of the toothed hob. The pitch mechanism includes a semi-circular bracket 103 rotatably connected to the top of the base 100. A servo motor 101 is bolted inside the base 100. An arc-shaped groove 102 is cut into the top of the base 100, and the arc-shaped groove 102 is slidably connected to the semi-circular bracket 103. The curvature of the arc-shaped groove 102 is consistent with that of the semi-circular bracket 103. A gear ring 104 is welded to the outer side of the semi-circular bracket 103. A drive gear 105 is bolted to the rotating end of the servo motor 101, and the drive gear 105 meshes with the gear ring 104. A workbench 106 is bolted to the top of the semicircular bracket 103. Multiple support legs 110 are welded to the outer side of the base 100 to fix the base 100. The lateral movement mechanism includes a lead screw 201, which is rotatably connected to the middle position of the workbench 106. A mounting plate 202 is slidably connected to the top of the workbench 106. A drive block 203 is welded to the bottom of the mounting plate 202 and is connected to the lead screw 201. A turntable 204 is bolted to one end of the lead screw 201, which drives the lead screw 201 to rotate. Slide grooves 210 are cut on both sides of the workbench 106. Strip plates 220 are bolted to both sides of the mounting plate 202 and are slidably connected to the slide grooves 210 to limit the movement direction of the mounting plate 202.

[0034] In this embodiment, the operator starts the servo motor 101, which drives the drive gear 105 to rotate. The drive gear 105 drives the semi-circular bracket 103 to rotate along the arc groove 102 through the gear ring 104, thereby driving the worktable 106 to adjust its pitch. This allows the flexible positioning fixture for the toothed hob to adjust the drilling direction at multiple angles during use. Subsequently, the operator drives the lead screw 201 to rotate through the turntable 204. The lead screw 201 drives the mounting plate 202 to move through the drive block 203. The transmission between the lead screw 201 and the drive block 203 ensures the accuracy of the toothed hob adjustment and enriches the functionality of the toothed hob drilling positioning fixture.

[0035] Example 2:

[0036] like Figure 2-5As shown, a flexible positioning fixture for drilling with a toothed hob is provided above the mounting plate 202 for mounting the toothed hob. The mounting mechanism includes a side plate 301, which is welded to both ends of the mounting plate 202. A limit plate 302 is fixed to one side of the side plate 301 by bolts. A toothed hob body 303 is rotatably connected to the middle position of the limit plate 302. Multiple heat dissipation holes 310 are evenly cut on the outer side of the limit plate 302 to dissipate the frictional heat generated during the operation of the toothed hob. The limiting plate 302 is equipped with a buffer mechanism to buffer the vibration during the rotation of the toothed hob drill bit. The buffer mechanism includes a cavity 401, which is evenly cut inside the limiting plate 302. A helical spring 402 is fixed inside the cavity 401 by bolts. Multiple helical springs 402 use their elasticity to compress the extrusion block 403. One end of the helical spring 402 is fixed to the extrusion block 403 by bolts. One end of the extrusion block 403 is rotatably connected to a ball bearing 404, which makes rotatable contact with the toothed hob drill bit 303.

[0037] In this embodiment, the toothed hob drill bit rotates and contacts the ball bearing 404, reducing the friction between the limiting plate 302 and the toothed hob drill body 303. Multiple helical springs 402 elastically compress the extrusion block 403, reducing the vibration during the rotation of the toothed hob drill bit and improving the stability of the rotation process.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A flexible positioning fixture for drilling with a toothed hob, characterized in that, Includes a base (100) and a pitch mechanism disposed above the base (100) for adjusting the pitch angle of the toothed hob drill bit. It also includes a lateral movement mechanism located above the pitch mechanism for adjusting the position of the toothed hob drill bit. The pitch mechanism includes a semi-circular bracket (103) rotatably connected to the top of a base (100). A servo motor (101) is installed inside the base (100). An arc-shaped groove (102) is provided on the top of the base (100) and slidably connected to the semi-circular bracket (103). A gear ring (104) is provided on the outer side of the semi-circular bracket (103). A drive gear (105) is provided at the rotating end of the servo motor (101). A worktable (106) is provided above the semi-circular bracket (103). The lateral movement mechanism includes a lead screw (201), which is rotatably connected to the middle position of the worktable (106). A mounting plate (202) is provided above the worktable (106), and a drive block (203) is provided below the mounting plate (202). The drive block (203) is connected to the lead screw (201) in a transmission manner. A turntable (204) is provided at one end of the lead screw (201).

2. The flexible positioning fixture for drilling with a toothed hob according to claim 1, characterized in that, A mounting mechanism is provided above the mounting plate (202) for mounting the toothed hobbing cutter bit. The mounting mechanism includes a side plate (301), which is welded to both ends of the mounting plate (202). A limiting plate (302) is provided on one side of the side plate (301), and a toothed hobbing cutter body (303) is provided in the middle of the limiting plate (302).

3. The flexible positioning fixture for drilling with a toothed hob according to claim 2, characterized in that, The limiting plate (302) is equipped with a buffer mechanism inside to buffer the vibration during the rotation of the toothed hob drill bit. The buffer mechanism includes a cavity (401), which is uniformly cut inside the limiting plate (302). A helical spring (402) is provided inside the cavity (401). A pressing block (403) is provided at one end of the helical spring (402), and a ball bearing (404) is provided at one end of the pressing block (403).

4. The flexible positioning fixture for drilling with a toothed hob according to claim 1, characterized in that, The base (100) has multiple legs (110) on its outer side.

5. The flexible positioning fixture for drilling with a toothed hob according to claim 1, characterized in that, The workbench (106) is provided with sliding grooves (210) on both sides, and the mounting plate (202) is provided with strip plates (220) on both sides, and the strip plates (220) are slidably connected to the sliding grooves (210).

6. The flexible positioning fixture for drilling with a toothed hob according to claim 2, characterized in that, The outer side of the limiting plate (302) is provided with a plurality of heat dissipation holes (310).

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