Auger bit for drilling furniture

Abstract

The utility model relates to the technical field of drill bits, and discloses a spiral drill bit for drilling furniture, which comprises a drill rod, a chip groove and a connecting end are arranged on the drill rod, a main drill bit and a positioning drill bit are detachably mounted on the drill rod, and the positioning drill bit, the main drill bit and the drill rod are coaxially arranged. According to the utility model, the positioning drill bit is arranged to provide drilling force for the drill rod when the drill rod drills, so that the pressure applied to the drill rod by a worker is reduced or even not required; by arranging the main drill bit and the positioning drill bits which are detachably installed, a worker can replace different positioning drill bits according to the actual hardness of wood, and the lengths and the conicity of drilling parts on the different positioning drill bits and the thread pitches of thread grooves can be changed; therefore, the positioning drill bit is synchronous with the main drill bit in the drilling process; and blockage and even jamming caused by inconsistent drilling speeds of the positioning drill bit and the main drill bit are prevented.

Description

Technical Field

[0001] This utility model relates to the field of drill bit technology, specifically, to a spiral drill bit for drilling holes in furniture. Background Technology

[0002] With the diversification of consumer demands, a variety of furniture styles have emerged. Since finished furniture requires assembly with screws and covering with fabrics or leather, and all of these processes necessitate drilling holes in the wood, furniture production is inseparable from drill bits. Traditional wood drills are inefficient when dealing with large-area holes and are prone to damaging the wood and creating burrs on the hole walls. Furthermore, drilling requires workers to press down on the drill bit to apply drilling force, which can lead to worker fatigue and reduced efficiency due to the high labor intensity. Utility Model Content

[0003] The purpose of this utility model is to provide a spiral drill bit for drilling furniture, which solves the problems of high labor intensity and low overall processing efficiency of existing drills when drilling holes in wood.

[0004] This utility model is achieved through the following technical solution: a spiral drill bit for drilling furniture, comprising a drill rod, wherein the drill rod is provided with a chip removal groove and a connecting end, and a main drill bit and a positioning drill bit are detachably installed on the drill rod, wherein the positioning drill bit, the main drill bit, and the drill rod are coaxially arranged; the positioning drill bit includes a drilling part, wherein the drilling part is provided with a threaded groove; the main drill bit includes a disc, wherein the disc is provided with multiple opening grooves, and the disc is provided with multiple opening cutting edges and trimming cutting edges, wherein the opening cutting edges and trimming cutting edges are respectively located on different sides of the opening grooves.

[0005] To better realize this utility model, the number of opening slots on the disk is the same as the number of chip removal slots, and the end of the chip removal slots coincides with the opening slots.

[0006] To better realize this utility model, the disk is further provided with multiple through holes along the axial direction, and multiple second screws are inserted through the through holes and threaded to the drill rod to realize the connection between the drill rod and the main drill bit.

[0007] To better realize this utility model, the drilling part is further provided with a mounting part, the mounting part is provided with a threaded hole, and the drill rod is provided with multiple through holes in the radial direction. Multiple first screws are inserted through the through holes on the drill rod and threadedly connected to the first screws to realize the connection between the drill rod and the positioning drill bit.

[0008] To better realize this utility model, the drill rod is further provided with a stepped groove in the axial direction, the mounting part is slidably engaged with the stepped groove, the disc is provided with a reinforcing end, the reinforcing end is slidably engaged with the mounting part, and the reinforcing end is slidably engaged with the stepped groove.

[0009] To better realize this utility model, the connecting end is further provided with a plurality of annular grooves, which are distributed along the axial direction.

[0010] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0011] (1) By setting a positioning drill bit, the drill rod provides drilling force to the positioning drill bit during drilling, thereby reducing or even eliminating the need for workers to apply pressure to the drill rod;

[0012] (2) By setting up a detachable main drill bit and a positioning drill bit, the workers can change different positioning drill bits according to the actual hardness of the wood. The length, taper and thread pitch of the drilling part on different positioning drill bits will change; thereby ensuring that the positioning drill bit is synchronized with the main drill bit during drilling; preventing jamming or even jamming caused by inconsistent drilling speed between the positioning drill bit and the main drill bit.

[0013] (3) By setting the reinforcing end, the mounting part and the stepped groove to be polygonal, the drill rod, the main drill bit and the positioning drill bit are locked together, ensuring that the drill rod, the main drill bit and the positioning drill bit rotate synchronously, and reducing the shear stress on the first screw and the second screw. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a frontal view of the structure of this utility model.

[0016] Figure 3 This is a partial structural cross-sectional view of the present invention.

[0017] Figure 4 A schematic diagram of the main drill bit and the positioning drill bit structure.

[0018] Figure 5 This is a schematic diagram of the main drill bit structure.

[0019] Figure 6 This is a schematic diagram of the positioning drill bit structure.

[0020] Wherein: 11-Drill rod; 12-Chip removal groove; 13-Connecting end; 131-Annular groove; 14-Main drill bit; 141-Disc section; 142-Opening cutting edge; 143-Dressing cutting edge; 144-Reinforcing end; 15-First screw; 16-Positioning drill bit; 161-Mounting part; 162-Drilling part; 163-Threaded groove; 17-Second screw. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1:

[0024] This embodiment provides a spiral drill bit for drilling holes in furniture, specifically as follows: Figures 1-6 As shown, the system includes a drill rod 11, which has a chip removal groove 12 and a connecting end 13. A main drill bit 14 and a positioning drill bit 16 are detachably mounted on the drill rod 11. The positioning drill bit 16, the main drill bit 14, and the drill rod 11 are coaxially arranged. The positioning drill bit 16 includes a drilling section 162 with a threaded groove 163. The main drill bit 14 includes a disc section 141 with multiple opening slots and multiple opening cutting edges 142 and dressing cutting edges 143 located on different sides of the opening slots. The end of the opening cutting edge 142 near the drilling section 162 is in contact with the drilling section 162, thereby limiting the positioning drill bit 16 and preventing it from dislodging from the drill rod 11. The design of the perforating blade 142 and the trimming blade 143 is the same as that of the prior art, and their material operation principle will not be repeated here.

[0025] During drilling, the top of the drilling section 162 is first pressed against the preset drilling mark to position the hole. Then, the connecting end 13 is driven, causing the drill rod 11 to rotate. The drill rod 11 then drives the main drill bit 14 and the positioning drill bit 16 to rotate synchronously. When the positioning drill bit 16 rotates, the drilling section 162 automatically drills into the wood due to the threaded groove 163. The threaded groove 163 reduces the pressure manually applied to the drill rod 11. When the drilling cutting edge 142 contacts the wood, it begins drilling a hole. Simultaneously, the dressing edge 143 trims the hole wall. At this time, the positioning drill bit 16 provides part of the drilling force. The sawdust generated during drilling by the drilling cutting edge 142 enters the chip removal groove 12 directly through the opening on the disc 141. As the drill rod 11 rotates, the sawdust is slowly transported upwards in the chip removal groove 12 until it is discharged from the hole.

[0026] By setting up a positioning drill bit 16, the drill rod 11 provides drilling force to the positioning drill bit 16 during drilling, thereby reducing or even eliminating the need for workers to apply pressure to the drill rod 11. With the detachable main drill bit 14 and positioning drill bit 16, workers can replace different positioning drill bits 16 according to the actual hardness of the wood. Different positioning drill bits 16 will have different lengths, tapers, and thread pitches of their drilling sections 162; this ensures that the positioning drill bit 16 is synchronized with the main drill bit 14 during drilling, preventing jamming or even complete seizure caused by inconsistent drilling speeds between the positioning drill bit 16 and the main drill bit 14.

[0027] Example 2:

[0028] This embodiment further extends the above embodiment, specifically as follows: Figure 1 As shown, the number of opening slots on the disk portion 141 is the same as the number of chip removal slots 12, and the ends of the chip removal slots 12 coincide with the opening slots.

[0029] In this embodiment, there are two chip removal grooves 12. The end of the chip removal groove 12 is aligned with the opening groove so that the wood chips generated by the drilling cutting part 142 can directly enter the chip removal groove 12 through the opening groove, preventing the wood chips from accumulating in the opening groove, which would cause the drilling to overheat and burn the hole wall.

[0030] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0031] Example 3:

[0032] This embodiment further extends the above embodiment, specifically as follows: Figures 3-4As shown, the disk 141 has multiple through holes along the axial direction, and multiple second screws 17 are inserted through the through holes and threaded to the drill rod 11 to realize the connection between the drill rod 11 and the main drill bit 14.

[0033] The main drill bit 14 is locked by threading the second screw 17 to the drill rod 11, ensuring that the main drill bit 14 rotates synchronously with the drill rod 11, and disassembly is convenient and quick.

[0034] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0035] Example 4:

[0036] This embodiment further extends the above embodiment, specifically as follows: Figures 3-4 As shown, the drilling part 162 is provided with a mounting part 161, the mounting part 161 is provided with a threaded hole, the drill rod 11 is provided with a plurality of through holes along the radial direction, and a plurality of first screws 15 are inserted through the through holes on the drill rod 11 and threadedly connected to the first screws 15 to realize the connection between the drill rod 11 and the positioning drill bit 16.

[0037] The first screw 15 is threaded through the drill rod 11 and connected to the positioning drill bit 16 to lock it onto the drill rod 11, ensuring that the positioning drill bit 16 rotates synchronously with the drill rod 11, making disassembly convenient and quick.

[0038] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0039] Example 5:

[0040] This embodiment further extends the above embodiment, specifically as follows: Figures 3-6 As shown, the drill pipe 11 is provided with a stepped groove in the axial direction, the mounting part 161 is slidably engaged with the stepped groove, the disk part 141 is provided with a reinforcing end 144, the reinforcing end 144 is slidably engaged with the mounting part 161, and the reinforcing end 144 is slidably engaged with the stepped groove.

[0041] By setting the reinforcing end 144, mounting part 161, and stepped groove to be polygonal (square in this embodiment), the relative rotation between the mounting part 161 and the reinforcing end 144, between the mounting part 161 and the drill rod 11, and between the reinforcing end 144 and the drill rod 11 is restricted. This ensures that the drill rod 11, the main drill bit 14, and the positioning drill bit 16 are locked together, guaranteeing that the drill rod 11, the main drill bit 14, and the positioning drill bit 16 rotate synchronously, thereby reducing the shear stress on the first screw 15 and the second screw 17.

[0042] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0043] Example 6:

[0044] This embodiment further extends the above embodiment, specifically as follows: Figure 2 As shown, the connecting end 13 is provided with a plurality of annular grooves 131, which are distributed along the axial direction. The annular grooves 131 are provided to enhance the tightness of the connection between the connecting end 13 and the drilling rig and to prevent the connecting end 13 from detaching from the drilling rig.

[0045] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0046] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A spiral drill bit for drilling furniture, comprising a drill rod (11), wherein the drill rod (11) is provided with a chip removal groove (12) and a connecting end (13), characterized in that: The drill rod (11) is detachably mounted with a main drill bit (14) and a positioning drill bit (16). The positioning drill bit (16), the main drill bit (14), and the drill rod (11) are coaxially arranged. The positioning drill bit (16) includes a drilling section (162) and a threaded groove (163) is provided on the drilling section (162). The main drill bit (14) includes a disc section (141) and multiple opening slots are provided on the disc section (141). Multiple opening cutting edges (142) and trimming cutting edges (143) are provided on the disc section (141). The opening cutting edges (142) and trimming cutting edges (143) are located on different sides of the opening slots.

2. The spiral drill bit for drilling furniture according to claim 1, characterized in that: The number of opening slots on the disk (141) is the same as the number of chip removal slots (12), and the end of the chip removal slots (12) coincides with the opening slots.

3. The spiral drill bit for drilling furniture according to claim 1, characterized in that: The disk (141) has multiple through holes along the axial direction. Multiple second screws (17) are inserted through the through holes and threaded to the drill rod (11) to realize the connection between the drill rod (11) and the main drill bit (14).

4. The spiral drill bit for drilling furniture according to claim 1, characterized in that: The drilling part (162) is provided with an installation part (161), the installation part (161) is provided with a threaded hole, the drill rod (11) is provided with multiple through holes in the radial direction, and multiple first screws (15) are inserted through the through holes on the drill rod (11) and threadedly connected to the first screws (15) to realize the connection between the drill rod (11) and the positioning drill bit (16).

5. A spiral drill bit for drilling furniture according to claim 4, characterized in that: The drill rod (11) is provided with a stepped groove in the axial direction. The mounting part (161) is slidably engaged with the stepped groove. The disc part (141) is provided with a reinforcing end (144). The reinforcing end (144) is slidably engaged with the mounting part (161) and the reinforcing end (144) is slidably engaged with the stepped groove.

6. A spiral drill bit for drilling furniture according to claim 1, characterized in that: The connecting end (13) is provided with a plurality of annular grooves (131), which are distributed along the axial direction.

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