Drilling tool assembly and method of using the same

Abstract

The present invention discloses a drilling tool assembly, comprising a spindle, a cutter head, and a connector connecting the spindle and the cutter head, wherein a first slot is provided at the end of the spindle, the connector is inserted into the first slot, a second slot is provided at one end of the connector facing the spindle, a third slot is provided at the other end of the connector 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 lock the connector. The cooperation between the first magnet and the second magnet facilitates the fixation of the connector to the spindle, and the first magnet and the second magnet can be quickly separated by a lever, thereby facilitating the disassembly of the tool.

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 of using the same. Background Art

[0002] Drilling a workpiece requires a variety of drilling tools. Existing tool assemblies are cumbersome to disassemble and assemble, and tool changes are time-consuming. Tools are often secured with fasteners, which require fixed tools like wrenches to disassemble. Lack of space within the drilling equipment makes tool changes difficult. 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 solutions:

[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 opposite to the connecting piece, 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 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 mounting cavity, a first driving rod is provided on a side of the first mounting seat facing the first slot and extending toward the bottom of the first mounting seat, the first driving rod is provided with a second driving rod passing through the first opening and extending into the mounting cavity, a driving member for driving the locking rod to move is provided in the mounting 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 that can fit 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 that can extend 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 member.

[0010] Furthermore, a second limit block is provided on the side wall of the installation cavity, and 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: When installing, insert the cutter head into the third slot and secure it with the fasteners;

[0015] S2: After the cutter head is fixed, the connecting piece is inserted into the first slot, and the opening of the second slot abuts against the first limit block. The first magnet and the first magnet attract each other, causing the first magnet to move 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 connector to separate it from the main shaft;

[0018] S5: Remove the fasteners to separate the cutter head from the connector.

[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 part and the main shaft. At the same time, the first magnet and the second magnet can be quickly separated by the lever, which facilitates 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 move and 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 frequently used cutter heads can be fixed on the connectors all the time. When the cutter head needs to be replaced, the connector and cutter head assembly can be directly connected. When the cutter head that is not frequently used needs to be replaced, the fasteners can be removed for replacement. The cutter head that is not frequently used does not need to be equipped with the corresponding connector 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 Enlarged view of point A in the middle;

[0026] Reference numerals: spindle 100, first slot 101, first limit block 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 limit block 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 shift rod 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 clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0028] See Figures 1 to 3 A drilling tool assembly includes a spindle 100, which is driven by an external power source. A cutter head 300 is mounted on the spindle. Rotation of the spindle 100 drives the cutter head 300, thereby machining a workpiece. The spindle 100 and the cutter head are connected by a connector 200, which facilitates installation and removal of the cutter head from the spindle 100.

[0029] A first slot 101 is provided at the end of the spindle 100. A first mounting seat 110 is provided within the first slot 101. A first magnet 113 is embedded within the first mounting seat 110. A first guide groove 120 is provided on the sidewall of the first slot 101. A first guide block 114 is provided on the first mounting seat 110 and extends into the first guide groove 120, thereby enabling the first mounting seat 110 and the first magnet 113 to move along the first guide groove 120 within the first slot 101. A first limiting block 102 is provided at the opening of the first slot 101. A first spring 130 is provided between the first limiting block 102 and the first guide block 114. The first spring 130 can limit the first support seat from extending out of the first groove.

[0030] The spindle 100 is provided with a mounting cavity 140 outside the first slot 101. A first opening 103 is provided on the sidewall of the first slot 101, connecting the first slot 101 with the mounting cavity 140. A first drive rod 111 is provided on the first mounting seat 110, extending toward the bottom of the first slot 101. The end of the first drive rod 111 is connected to a second drive rod 112 extending horizontally. The second drive rod 112 passes through the first opening 103 and extends into the mounting cavity 140. A locking rod 160 is provided in the mounting cavity 140, with a limit rod 162 provided at the end of the locking rod 160. A telescopic hole 163 is provided at a position in the first slot 101 corresponding to the limit rod 162, allowing the end of the limit rod 162 to extend from the telescopic hole 163. A driving member is also provided within the mounting cavity 140. The driving member includes a driving rod, which is provided with a driving block 151 extending toward the first opening 103. The second driving rod 112 is located above the driving block 151 and is capable of abutting against the driving block 151. A second guide groove 142 is provided on the side wall of the mounting cavity 140. The movable rod 150 is provided with a second guide block extending into the second guide groove 142, thereby enabling the movable rod 150 to move along the second guide groove 142. A third limiting block is provided at the end of the movable rod 150 away from the locking rod 160. A second limiting block 143 is provided on the side wall of the mounting cavity 140. A second spring 141 is provided between the second limiting block 143 and the third limiting block, thereby limiting the movement of the movable rod 150 toward the locking rod 160. A first guide slope 152 is provided on the 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 be in contact with the first guide slope 152. The movement of the movable rod 150 can drive the action of the locking rod 160, so that the limit rod 162 can be extended and retracted 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 causing the second driving rod 112 to abut against the driving block 151. At the same time, it also drives 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, thereby fixing the main shaft 100 and the connecting member 200.

[0032] The connecting member 200 has a second slot 204 at its first end facing the spindle 100, and a third slot 220 at its other end. A second mounting seat 210 is disposed within the second slot 204, and a second magnet 212 is embedded within the second mounting seat 210. A third guide groove 201 is disposed on the sidewall of the second slot 204, and a third guide block 211 is disposed on the second mounting seat 210, extending into the third guide groove 201, thereby enabling the second mounting seat 210 and the second magnet 212 to move within 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 the 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. 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. When the first magnet 113 and the second magnet 212 attract each other, it can ensure that the second magnet 212 does not move while the first magnet 113 moves. When removing 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 from 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. The cutter head 300 is provided with a connecting hole 310 corresponding to the position of the through-holes 221 and extending horizontally through the cutter head 300. The cutter head 300 is secured to the connector 200 via a fastener 400 passing through the two through-holes 221 and the connecting hole 310. A frequently used cutter head 300 can be permanently secured to the connector 200. When a cutter head 300 needs to be replaced, the connector 200 and cutter head 300 assembly can be directly replaced. When a cutter head 300 that is not frequently used needs to be replaced, the fastener 400 can be removed and replaced. Infrequently used cutter heads 300 do not need to be constantly equipped with a corresponding connector 200, thereby reducing usage costs.

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

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

[0036] S2: After the cutter head 300 is fixed, the connector 200 is inserted into the first slot 101, and the opening of the second slot 204 abuts against the first limit block 102. The first magnet 113 and the magnet attract each other, causing the first magnet 113 to actuate and drive the locking lever 160 to actuate, causing the locking lever 160 to lock the connector 200.

[0037] S3: During disassembly, the lever 203 is moved to separate the first magnet 113 from the second magnet 212, and the locking lever 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 description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A drilling tool assembly, characterized in that: The invention comprises a main shaft (100), a cutting head (300) and a connecting member (200) connecting the main shaft (100) and the cutting head (300), wherein the end of the main shaft (100) is provided with a first slot (101), the connecting member (200) is inserted into the first slot (101), the end of the connecting member (200) facing the main shaft (100) is provided with a second slot (204), the other end of the connecting member (200) opposite to the main shaft (100) is provided with a third slot (220), the cutting head (300) is inserted into the third 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 side wall of the first slot (101) is provided with a mounting cavity (140), a movable locking rod (160) is installed in the mounting cavity (140), and a movable locking rod (160) is installed in the second slot (220). The magnet (212) attracts the first magnet (113) to move and drives the locking rod (160) to lock the connecting member (200); a first mounting seat (110) is provided in the first slot (101); the first magnet (113) is embedded in the first mounting seat (110); a first guide groove (120) is provided on the side of the first slot (101); a first guide block (114) extending into the first guide groove (120) is provided on the side of the first mounting seat (110); a first limiting block (102) extending toward the first mounting seat (110) is provided on the side of the first slot (101); a first spring (130) is provided between the first limiting block (102) and the first guide block (114); the first spring (130) pushes the first mounting seat (110) to move toward the bottom of the first slot (101); A first opening (103) is provided on a side wall of the first slot (101), the first opening (103) connects the first slot (101) and the mounting cavity (140), a first driving rod (111) extending toward the bottom of the first mounting seat (110) is provided on a side of the first slot (101), the first driving rod (111) is provided with a second driving rod (112) passing through the first opening (103) and extending into the mounting cavity (140), a driving member for driving the locking rod (160) to move is provided in the mounting cavity (140), and the first mounting seat (110) moves to drive the second driving rod (112) to move along the first opening (103) and drive the driving member to move, The driving member includes a movable rod (150), the movable rod (150) is provided with a driving block (151) extending toward the first opening (103), the second driving rod (112) extends 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 installation cavity (140) is provided with a second guide groove (142), and the movable rod (150) is provided with a second guide block (153) extending into the second guide groove (142). The movable rod (150) is provided with a first guide bevel (152) at one end facing the opening direction of the first slot (101), and the locking rod (160) is provided with a second guide bevel (161) that can fit with the first guide bevel (152) at one end 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), and the telescopic hole (163) connects the first slot (101) and the installation cavity (140). The locking rod (160) is provided with a limiting rod (162) that can extend from the telescopic hole (163) into the first slot (101) at one end facing the opening of the first slot (101). The side wall of the connecting member (200) is provided with a limiting groove (202) for the limiting rod (162) to be inserted. A second limiting block (143) is provided on the side wall of the installation cavity (140), a third limiting block (154) extending above the second limiting block (143) is provided on 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 limiting block (143) and the third limiting block (154). 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).

2. A drilling tool assembly according to claim 1, 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).

3. A method for using the drilling tool assembly according to claim 2, characterized in that: The following steps are involved: S1: During installation, the cutter head (300) is inserted into the third slot (220) and fixed via the fastener (400); S2: After the cutter head (300) is fixed, the connecting member (200) is inserted into the first slot (101), and 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: When disassembling, the lever (203) is moved to separate the first magnet (113) from the second magnet (212), and the locking lever (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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