Drilling tool assembly and using method thereof

Abstract

The drilling tool assembly comprises a main shaft, a tool bit and a connecting piece connecting the main shaft and the tool bit, a first inserting groove is formed in the end of the main shaft, the connecting piece is inserted into the first inserting groove, a second inserting groove is formed in the end, facing the main shaft, of the connecting piece, a third inserting groove is formed in the other opposite end of the connecting piece, and the tool bit is inserted into the third inserting groove. A movable first magnet is installed in the first inserting groove, a movable second magnet is installed in the second inserting groove, an installation cavity is formed in the side wall of the first inserting groove, a movable locking rod is installed in the installation cavity, and the second magnet attracts the first magnet to move and drives the locking rod to act so as to lock the connecting piece. Through cooperation of the first magnet and the second magnet, fixing of the connecting piece and the main shaft can be facilitated, meanwhile, the first magnet and the second magnet can be rapidly separated through the shifting rod, and dismounting of the cutter is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling equipment, and more particularly, to a drilling tool assembly and a method for using the same. Background Art

[0002] Different drilling tools are required for workpiece drilling. The existing tool assembly is cumbersome to disassemble and assemble, and it takes a long time to replace the tool. The tool is mostly fixed by fasteners, and the disassembly and assembly of fasteners requires fixed tools such as wrenches. If there is insufficient space in the drilling equipment, it will be very difficult to replace the tool. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a drilling tool assembly that is easy to replace.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] The present invention discloses a drilling tool assembly, comprising a spindle, a cutter head and a connecting piece connecting the spindle and the cutter head, wherein a first slot is provided at the end of the spindle, the connecting piece is inserted into the first slot, a second slot is provided at one end of the connecting piece facing the spindle, a third slot is provided at the other end of the connecting piece opposite to the spindle, the cutter head is inserted into the third slot, a movable first magnet is installed in the first slot, a movable second magnet is installed in the second slot, a mounting cavity is provided on the side wall of the first slot, a movable locking rod is installed in the mounting cavity, the second magnet attracts the first magnet to move and drives the locking rod to operate to lock the connecting piece.

[0006] Furthermore, a first mounting seat is provided in the first slot, the first magnet is embedded in the first mounting seat, a first guide groove is provided on the side of the first slot, a first guide block extending into the first guide groove is provided on the side of the first mounting seat, a first limiting block extending toward the first mounting seat is provided on the side of the first slot, a first spring is provided between the first limiting block and the first guide block, and the first spring pushes the first mounting seat to move toward the bottom of the first slot.

[0007] Furthermore, a first opening is provided on the side wall of the first slot, the first opening connects the first slot and the installation cavity, a first driving rod extending toward the bottom of the first mounting seat is provided on a side of the first mounting seat facing the first slot, the first driving rod is provided with a second driving rod passing through the first opening and extending into the installation cavity, a driving member for driving the locking rod to move is provided in the installation cavity, and the movement of the first mounting seat drives the second driving rod to move along the first opening and drives the driving member to move.

[0008] Furthermore, the driving member includes a movable rod, the movable rod is provided with a driving block extending toward the first opening, the second driving rod extends above the driving block so that the second driving rod can push the driving block to move toward the opening direction of the first slot, the side wall of the mounting cavity is provided with a second guide groove, and the movable rod is provided with a second guide block extending into the second guide groove.

[0009] Furthermore, a first guide slope is provided at one end of the movable rod facing the opening direction of the first slot, a second guide slope capable of fitting with the first guide slope is provided at one end of the locking rod facing the bottom surface of the first slot, a telescopic hole is provided on the side wall at the opening of the first slot, the telescopic hole connects the first slot and the installation cavity, a limiting rod capable of extending from the telescopic hole into the first slot is provided at one end of the locking rod facing the opening of the first slot, and a limiting groove for inserting the limiting rod is provided on the side wall of the connecting piece.

[0010] Furthermore, a second limit block is provided on the side wall of the installation cavity, a third limit block extending above the second limit block is provided at one end of the movable rod toward the bottom of the installation cavity, and a second spring is provided between the second limit block and the third limit block.

[0011] Furthermore, the second slot is provided with a second mounting seat, the second magnet is embedded in the second mounting seat, the side wall of the second slot is provided with a third guide groove, the second mounting seat is provided with a third guide block extending into the third guide groove, the side wall of the second slot is provided with a second opening, the second mounting seat is connected to a lever extending from the second opening to the outside of the connecting member, and a third spring is provided between the lever and the bottom of the second slot.

[0012] Furthermore, the third slot is symmetrically provided with two through holes, the cutter head is provided with a connecting hole corresponding to the position of the through holes and horizontally passing through the cutter head, and the cutter head is fixed to the connecting piece by a fastener passing through the two through holes and the connecting hole.

[0013] The present invention also provides a method for using a drilling tool assembly, comprising the following steps:

[0014] S1: During installation, insert the cutter head into the third slot and secure it with the fastener;

[0015] S2: After the cutter head is fixed, when the connecting piece is inserted into the first slot, the opening of the second slot abuts against the first limit block, the first magnet and the magnet attract each other to move the first magnet and drive the locking rod to move, so that the locking rod locks the connecting piece;

[0016] S3: When disassembling, the lever is moved to separate the first magnet from the second magnet, and the locking lever is reset;

[0017] S4: Pull out the connecting piece to separate it from the main shaft;

[0018] S5: Remove the fastener to separate the cutter head from the connecting piece.

[0019] The beneficial effects of the present invention are:

[0020] 1. The cooperation between the first magnet and the second magnet can facilitate the fixation of the connecting piece and the main shaft. At the same time, the first magnet and the second magnet can be quickly separated by the lever, which is convenient for the disassembly of the tool.

[0021] 2. The second magnet can attract the first magnet to move, so that the first magnet drives the locking rod to fix the locking rod and the connecting piece, thereby forming an interlock between the first magnet and the second magnet and the locking rod and the connecting piece, further ensuring the stability of the connection between the connecting piece and the main shaft.

[0022] 3. The cutter head is fixed by fasteners and connectors. The commonly used cutter heads can be fixed on the connectors all the time. When the cutter head needs to be replaced, the connector and the cutter head assembly can be directly connected. When the cutter head that is not commonly used needs to be replaced, the fasteners can be removed for replacement. The cutter head that is not commonly used does not need to be equipped with corresponding connectors all the time, which reduces the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 is a cross-sectional view of the present invention;

[0025] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0026] Reference numerals: spindle 100, first slot 101, first stopper 102, first opening 103, first mounting seat 110, first driving rod 111, second driving rod 112, first magnet 113, first guide block 114, first guide groove 120, first spring 130, mounting cavity 140, second spring 141, second guide groove 142, second stopper 143, movable rod 150, driving block 151, first guide slope 152, second guide Block 153, the third limit block 154, the locking rod 160, the second guide slope 161, the limit rod 162, the telescopic hole 163, the connecting piece 200, the third guide groove 201, the limit groove 202, the lever 203, the second slot 204, the second mounting seat 210, the third guide block 211, the second magnet 212, the third slot 220, the through hole 221, the second opening 230, the third spring 240, the cutter head 300, the connecting hole 310, and the fastener 400. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figures 1 to 3 A drilling tool assembly includes a spindle 100, which is driven to rotate by an external power. A cutter head 300 is installed on the rotating shaft, and the spindle 100 rotates to drive the cutter head 300 to rotate, thereby processing a workpiece. The spindle 100 is connected to the tool by a connector 200, and the connector 200 can facilitate the installation and disassembly of the tool and the spindle 100.

[0029] A first slot 101 is provided at the end of the spindle 100, a first mounting seat 110 is provided in the first slot 101, a first magnet 113 is embedded in the first mounting seat 110, a first guide groove 120 is provided on the side wall of the first slot 101, and a first guide block 114 extending into the first guide groove 120 is provided on the first mounting seat 110, so that the first mounting seat 110 and the first magnet 113 can move along the first guide groove 120 in the first slot 101. A first limiting block 102 is provided at the opening of the first slot 101, and a first spring 130 is provided between the first limiting block 102 and the first guide block 114, and the first spring 130 can limit the first support seat from extending out of the first groove.

[0030] The spindle 100 is provided with an installation cavity 140 on the periphery of the first slot 101, and a first opening 103 is provided on the side wall of the first slot 101, and the first opening 103 connects the first slot 101 with the installation cavity 140. The first mounting seat 110 is provided with a first driving rod 111 extending toward the bottom of the first slot 101, and the end of the first driving rod 111 is connected to a second driving rod 112 extending in the horizontal direction, and the second driving rod 112 passes through the first opening 103 and extends into the installation cavity 140. A locking rod 160 is provided in the installation cavity 140, and a limiting rod 162 is provided at the end of the locking rod 160, and a telescopic hole 163 is provided at a position of the first slot 101 corresponding to the limiting rod 162, so that the end of the limiting rod 162 can extend from the telescopic hole 163. Meanwhile, a driving member is also provided in the installation cavity 140, and the driving member includes a driving rod, and the driving rod is provided with a driving block 151 extending toward the first opening 103, and the second driving rod 112 is located above the driving block 151 and can abut against the driving block 151. A second guide groove 142 is provided on the side wall of the installation cavity 140, and the movable rod 150 is provided with a second guide block extending into the second guide groove 142, so that the movable rod 150 can move along the second guide groove 142. A third limiting block is provided at one end of the movable rod 150 away from the locking rod 160, and a second limiting block 143 is provided on the side wall of the installation cavity 140, and a second spring 141 is provided between the second limiting block 143 and the third limiting block, so as to limit the movable rod 150 from moving toward the locking rod 160. A first guide slope 152 is provided on one side of the movable rod 150 facing the locking rod 160 , and a second guide slope 161 is provided on the locking rod 160 to fit with the first guide slope 152 . The movement of the movable rod 150 can drive the locking rod 160 to move, thereby causing the limiting rod 162 to extend and retract at the telescopic hole 163 .

[0031] A second magnet 212 is installed on the connecting member 200. After the connecting member 200 is inserted into the first slot 101, the first magnet 113 and the second magnet 212 attract each other, so that the first magnet 113 overcomes the elastic force of the first spring 130 and moves toward the second magnet 212, while driving the first mounting seat 110 to move and making the second driving rod 112 abut against the driving block 151, and also driving the movable rod 150 to overcome the elastic force of the second spring 141 and move toward the locking rod 160. Under the cooperation of the first guide inclined surface 152 and the second guide inclined surface 161, the locking rod 160 moves toward the center of the first slot 101 so that the end of the limiting rod 162 extends out of the telescopic hole 163. A limiting groove 202 corresponding to the position of the telescopic hole 163 is provided on the side wall of the connecting member 200. After the end of the limiting rod 162 extends out of the telescopic hole 163, it is inserted into the limiting groove 202 and fixed to the connecting member 200, so that the main shaft 100 and the connecting member 200 are fixed.

[0032] The first end of the connecting member 200 facing the main shaft 100 is provided with a second slot 204, and the other end is provided with a third slot 220. A second mounting seat 210 is provided in the second slot 204, and a second magnet 212 is embedded in the second mounting seat 210. A third guide groove 201 is provided on the side wall of the second slot 204, and a third guide block 211 extending into the third guide groove 201 is provided on the second mounting seat 210, so that the second mounting seat 210 and the second magnet 212 can move in the second slot 204. A second opening 230 is provided on the side wall of the second slot 204, and a lever 203 is provided on one side of the second mounting seat 210 facing the bottom of the second slot 204, which extends to the outside of the connecting member 200 through the second opening 230. At the same time, a third spring 240 is provided between the lever 203 and the bottom of the second slot 204, and the third spring 240 pushes the second mounting seat 210 to move toward the main shaft 100, so that the third guide block 211 moves to the top of the third guide groove 201 to limit the position of the second magnet 212, and when the first magnet 113 and the second magnet 212 attract each other, it can ensure that the second magnet 212 is stationary while the first magnet 113 moves. When disassembling the connecting member 200, manually push the lever 203 downward to overcome the suction force between the first magnet 113 and the second magnet 212 and the elastic force of the third spring 240 to move the first mounting seat 110 and the first magnet 113, thereby separating the first magnet 113 from the second magnet 212. Under the action of the first spring 130 and the second spring 141, the first mounting seat 110 is reset, and the movable rod 150 no longer abuts against the locking rod 160. Since the end of the limiting rod 162 and the limiting groove 202 are both arc-shaped structures, the connecting member 200 and the limiting rod 162 can move, so that the connecting member 200 can be pulled out of the first slot 101 to repair or replace the cutter head 300.

[0033] The third slot 220 is symmetrically provided with two through holes 221, and the cutter head 300 is provided with a connecting hole 310 corresponding to the position of the through hole 221 and horizontally penetrating the cutter head 300. The cutter head 300 is fixed to the connecting member 200 by a fastener 400 passing through the two through holes 221 and the connecting hole 310. The commonly used cutter head 300 can be fixed on the connecting member 200 all the time, and when the cutter head 300 needs to be replaced, the connecting member 200 and the cutter head 300 combination can be directly connected. When the cutter head 300 that is not commonly used needs to be replaced, the fastener 400 can be removed for replacement, and the cutter head 300 that is not commonly used does not need to be equipped with the corresponding connecting member 200 all the time, thereby reducing the use cost.

[0034] This embodiment also provides a method for using the drilling tool assembly, comprising the following steps:

[0035] S1: During installation, insert the cutter head 300 into the third slot 220 and fix it with the fastener 400;

[0036] S2: After the cutter head 300 is fixed, when the connecting member 200 is inserted into the first slot 101, the opening of the second slot 204 abuts against the first limit block 102, and the first magnet 113 and the magnet attract each other to move the first magnet 113 and drive the locking rod 160 to move, so that the locking rod 160 locks the connecting member 200;

[0037] S3: During disassembly, the lever 203 is moved to separate the first magnet 113 from the second magnet 212, and the locking rod 160 is reset;

[0038] S4: Pull out the connecting member 200 to separate the connecting member 200 from the main shaft 100;

[0039] S5: Remove the fastener 400 to separate the cutter head 300 from the connecting member 200 .

[0040] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A drilling tool assembly, characterized in that: The invention comprises a main shaft (100), a cutter head (300), and a connecting piece (200) connecting the main shaft (100) and the cutter head (300), wherein a first slot (101) is arranged at the end of the main shaft (100), and the connecting piece (200) is inserted into the first slot (101); a second slot (204) is arranged at one end of the connecting piece (200) facing the main shaft (100); a third slot (220) is arranged at the other end of the connecting piece (200) opposite to the main shaft (100), and the cutter head (300) is inserted into the third slot (220). In the slot (220), a movable first magnet (113) is installed in the first slot (101), a movable second magnet (212) is installed in the second slot (204), a mounting cavity (140) is provided on the side wall of the first slot (101), a movable locking rod (160) is installed in the mounting cavity (140), and the second magnet (212) attracts the first magnet (113) to move and drives the locking rod (160) to move so as to lock the connecting member (200).

2. A drilling tool assembly according to claim 1, characterized in that: A first mounting seat (110) is arranged in the first slot (101), the first magnet (113) is embedded in the first mounting seat (110), a first guide groove (120) is arranged on the side of the first slot (101), a first guide block (114) extending into the first guide groove (120) is arranged on the side of the first mounting seat (110), a first limiting block (102) extending toward the first mounting seat (110) is arranged on the side of the first slot (101), a first spring (130) is arranged between the first limiting block (102) and the first guide block (114), and the first spring (130) pushes the first mounting seat (110) to move toward the bottom of the first slot (101).

3. A drilling tool assembly according to claim 2, characterized in that: A first opening (103) is provided on a side wall of the first slot (101), the first opening (103) connecting the first slot (101) with the installation cavity (140), a first driving rod (111) extending toward the bottom of the first installation seat (110) is provided on a side of the first slot (101) facing the first slot, the first driving rod (111) is provided with a second driving rod (112) passing through the first opening (103) and extending into the installation cavity (140), a driving member for driving the locking rod (160) to move is provided in the installation cavity (140), and the movement of the first installation seat (110) drives the second driving rod (112) to move along the first opening (103) and drives the driving member to move.

4. A drilling tool assembly according to claim 3, characterized in that: The driving member comprises a movable rod (150), the movable rod (150) being provided with a driving block (151) extending toward the first opening (103), the second driving rod (112) extending above the driving block (151) so that the second driving rod (112) can push the driving block (151) to move toward the opening direction of the first slot (101), the side wall of the mounting cavity (140) being provided with a second guide groove (142), and the movable rod (150) being provided with a second guide block (153) extending into the second guide groove (142).

5. A drilling tool assembly according to claim 4, characterized in that: A first guiding bevel (152) is provided at one end of the movable rod (150) facing the opening direction of the first slot (101); a second guiding bevel (161) capable of being fitted with the first guiding bevel (152) is provided at one end of the locking rod (160) facing the bottom surface of the first slot (101); a telescopic hole (163) is provided on the side wall at the opening of the first slot (101); the telescopic hole (163) connects the first slot (101) and the installation cavity (140); a limiting rod (162) capable of extending from the telescopic hole (163) into the first slot (101) is provided at one end of the locking rod (160) facing the opening of the first slot (101); and a limiting groove (202) for inserting the limiting rod (162) is provided on the side wall of the connecting member (200).

6. A drilling tool assembly according to claim 4, characterized in that: A second limit block (143) is provided on the side wall of the installation cavity (140); a third limit block (154) extending above the second limit block (143) is provided at one end of the movable rod (150) facing the bottom of the installation cavity (140); and a second spring (141) is provided between the second limit block (143) and the third limit block (154).

7. A drilling tool assembly according to claim 1, characterized in that: The second slot (204) is provided with a second mounting seat (210), the second magnet (212) is embedded in the second mounting seat (210), the side wall of the second slot (204) is provided with a third guide slot (201), the second mounting seat (210) is provided with a third guide block (211) extending into the third guide slot (201), the side wall of the second slot (204) is provided with a second opening (230), the second mounting seat (210) is connected to a lever (203) extending from the second opening (230) to the outside of the connecting member (200), and a third spring (240) is provided between the lever (203) and the bottom of the second slot (204).

8. A drilling tool assembly according to claim 7, characterized in that: The third slot (220) is symmetrically provided with two through holes (221), the cutter head (300) is provided with a connecting hole (310) corresponding to the position of the through holes (221) and horizontally passing through the cutter head (300), and the cutter head (300) is fixed to the connecting member (200) by a fastener (400) passing through the two through holes (221) and the connecting hole (310).

9. A method for using the drilling tool assembly according to claim 8, characterized in that: The following steps are involved: S1: During installation, the cutter head (300) is inserted into the third slot (220) and fixed by the fastener (400); S2: After the cutter head (300) is fixed, when the connecting member (200) is inserted into the first slot (101), the opening of the second slot (204) abuts against the first limit block (102), and the first magnet (113) and the magnet attract each other, causing the first magnet (113) to move and drive the locking rod (160) to move, so that the locking rod (160) locks the connecting member (200); S3: During disassembly, the lever (203) is moved to separate the first magnet (113) from the second magnet (212), and the locking rod (160) is reset; S4: pulling out the connecting member (200) to separate the connecting member (200) from the main shaft (100); S5: Remove the fastener (400) to separate the cutter head (300) from the connecting member (200).

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