Angle steel drilling tool

Abstract

An angle steel drilling tool is used for improving the situation that drilling is inconvenient when a clamp is used for disassembling and assembling angle steel. The angle steel drilling tool comprises a supporting block, a first baffle and a second baffle. The supporting block is provided with a first horizontal wall, a first upright wall, a side upright wall and a second upright wall, the first horizontal wall supports a drilling waist plate of the angle steel, the first upright wall blocks a non-drilling waist plate of the angle steel, the second upright wall blocks the transverse edge of the drilling waist plate, and the side upright wall blocks the longitudinal edge of the drilling waist plate; the first baffle is provided with a second horizontal wall, a vertical interval is formed between the second horizontal wall and the first horizontal wall and used for receiving the drilling waist plate, the second horizontal wall blocks the drilling waist plate, and the height of the vertical interval is larger than the thickness of the drilling waist plate so that the drilling waist plate can be transversely inserted; the second baffle is provided with a third upright wall, a longitudinal interval is formed between the third upright wall and the first upright wall, the third upright wall receives the non-drilling waist plate, the third upright wall blocks the non-drilling waist plate, and the length of the longitudinal interval is larger than the thickness of the non-drilling waist plate so as to allow the non-drilling waist plate to be transversely inserted.

Description

Technical Field

[0001] The utility model relates to the field of machining, in particular to an angle steel drilling tool. Background Art

[0002] The traveling mechanism of gantry and shore crane trolleys requires a large number of angle steels, which are small in size and difficult to mark. The angle steels need to be clamped and disassembled many times, and it is inconvenient to operate the fixture to disassemble and assemble the angle steels, and the drilling operation efficiency is low. Utility Model Content

[0003] The utility model aims to provide an angle steel drilling tool, which is used to improve the inconvenience of drilling angle steel when the fixture is disassembled and assembled.

[0004] According to an embodiment of the utility model, the angle steel drilling tool includes a supporting block, a first baffle and a second baffle; the supporting block has a first horizontal wall and a first upright wall, and a side upright wall and a second upright wall are provided, the first horizontal wall is used to support the drilling waist plate of the angle steel, the first upright wall is used to block the non-drilling waist plate of the angle steel, the second upright wall is used to block the horizontal side of the drilling waist plate, and the side upright wall is used to block the longitudinal side of the drilling waist plate; the first baffle has a second horizontal wall, the second horizontal wall and the first horizontal wall have a vertical gap, which is used to receive the drilling waist plate, the second horizontal wall is used to block the drilling waist plate, and the height of the vertical gap is configured to be greater than the thickness of the drilling waist plate to allow the drilling waist plate to be inserted laterally; the second baffle has a third upright wall, the third upright wall and the first upright wall have a longitudinal gap, which is used to receive the non-drilling waist plate, the third upright wall is used to block the non-drilling waist plate, and the length of the longitudinal gap is configured to be greater than the thickness of the non-drilling waist plate to allow the non-drilling waist plate to be inserted laterally.

[0005] In one or more embodiments, the side wall protrudes from the first horizontal wall, and the second front wall protrudes from the first horizontal wall.

[0006] In one or more embodiments, the first baffle is provided with a through vertical hole to guide the drill bit to drill a hole in the drilling waist plate through the vertical hole.

[0007] In one or more embodiments, the first horizontal wall is provided with an avoidance groove, and the avoidance groove is recessed from the first horizontal wall to avoid the drill bit.

[0008] In one or more embodiments, a chip storage groove is provided on the first upright wall, and the chip storage groove is recessed from the first upright wall. A chip removal groove is provided at the connection between the first horizontal wall and the first upright wall, and the chip removal groove is recessed from the first horizontal wall and from the first upright wall. The chip removal groove connects the chip storage groove and the avoidance groove so that the chips in the avoidance groove enter the chip storage groove through the chip removal groove.

[0009] In one or more embodiments, the avoidance groove extends laterally along the first horizontal wall, the chip storage groove extends laterally along the first upright wall, a plurality of chip removal grooves are arranged laterally at the connection between the first horizontal wall and the first upright wall, and each chip removal groove extends longitudinally along the first horizontal wall and vertically along the first upright wall.

[0010] In one or more embodiments, the support block, the first baffle plate and the second baffle plate are arranged on a bottom plate, and the bottom plate is rotatably supported on the base through a bearing.

[0011] In one or more embodiments, the base and the bottom plate are provided with pin holes, the pin holes are provided with pins, and the pins are inserted into the pin holes of the base and the pin holes of the bottom plate to limit the rotation of the bottom plate relative to the base.

[0012] In one or more embodiments, the supporting block, the first baffle plate and the second baffle plate are arranged on a base, the base is supported by a guide plate, a sliding groove is arranged on one of the guide plate and the base, and a slider is arranged on the other of the guide plate and the base, the sliding groove and the slider can slide relative to each other, and the guide plate thereby guides the base to slide.

[0013] In one or more embodiments, the slide groove and the slider are capable of sliding laterally, and the guide plate thereby guides the base to slide laterally.

[0014] The embodiments of the present invention have at least the following beneficial effects:

[0015] The angle steel is inserted into the angle steel drilling tooling horizontally and reaches the drilling station. The angle steel leaves the drilling station horizontally and exits the angle steel drilling tooling. The angle steel drilling tooling is convenient to operate to disassemble and assemble the angle steel, and it saves marking and multiple disassembly and assembly. The angle steel can be drilled directly when it reaches the drilling station, which improves the drilling operation efficiency, improves the processing accuracy, and avoids injuries to operators caused by repeated disassembly and assembly of the angle steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0017] Figure 1 This is an oblique view of the angle steel drilling tool;

[0018] Figure 2 for Figure 1 Exploded view of the drilling tool for the middle angle steel;

[0019] Figure 3 Insert for angle iron Figure 1Oblique view of the drilling tool for the middle angle steel.

[0020] Reference numerals:

[0021] 1- Angle steel drilling tool;

[0022] 2- Support block;

[0023] 3- first baffle;

[0024] 4- second baffle;

[0025] 5- first horizontal wall;

[0026] 6- The first upright wall;

[0027] 7-side vertical wall;

[0028] 8- Second upright wall;

[0029] 9 - second horizontal wall;

[0030] 10- The third upright wall;

[0031] 11-Angle steel

[0032] 12-drilling waist plate;

[0033] 13-Non-drilled waist plate;

[0034] 14-vertical hole;

[0035] 15-avoidance groove;

[0036] 16-chip storage groove;

[0037] 17-chip removal groove;

[0038] 18-first bolt;

[0039] 19- bottom plate;

[0040] 20- second bolt;

[0041] 21- bearing;

[0042] 22- base;

[0043] 23-pin hole;

[0044] 24-pin;

[0045] 25-guide plate;

[0046] 26-chute;

[0047] 27- Slider. DETAILED DESCRIPTION

[0048] Reference will now be made in detail to embodiments of the present invention, one or more examples of which are shown in the accompanying drawings. Each example is provided to explain the present invention, rather than to limit the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment may be used together with another embodiment to produce yet another embodiment. Therefore, the present invention is intended to cover these modifications and variations that fall within the scope of the appended claims and their equivalents.

[0049] It should be noted that these and other subsequent drawings are only examples and are not drawn in proportion, and should not be used as a limitation on the actual scope of protection required by the present utility model.

[0050] The terms "first", "second", etc. may be used interchangeably to distinguish one feature from another, and are not intended to mean that each feature must be located as shown in the figures in each embodiment.

[0051] Figures 1 to 3 The angle steel drilling tool 1 shown is in a horizontally set conventional posture. The "horizontal", "vertical", "vertical" and other azimuth descriptions described below are based on the conventional posture. When the angle steel drilling tool 1 is in a posture other than the conventional posture, the azimuth description should be adaptively adjusted as the posture changes. The horizontal direction is the width direction, including the left direction and the right direction. The right direction is the X direction of the spatial rectangular coordinate system in the figure, and the left direction is the opposite direction of the X direction of the spatial rectangular coordinate system in the figure, the same below. The longitudinal direction is the length direction. The longitudinal direction is perpendicular to the horizontal direction. The longitudinal direction includes the forward direction and the backward direction. The forward direction is the Y direction of the spatial rectangular coordinate system in the figure, and the backward direction is the opposite direction of the Y direction of the spatial rectangular coordinate system in the figure, the same below. The vertical direction is the height direction. The vertical direction is perpendicular to the horizontal direction and the longitudinal direction. The vertical direction includes the upward direction and the downward direction. The upward direction is the Z direction of the spatial rectangular coordinate system in the figure, and the downward direction is the opposite direction of the Z direction of the spatial rectangular coordinate system in the figure, the same below.

[0052] like Figures 1 to 3 As shown, the angle steel drilling tool 1 includes a support block 2. Figure 2 As shown, the support block 2 has a first horizontal wall 5, which is perpendicular to the vertical direction. The support block 2 also has a first upright wall 6, which is perpendicular to the longitudinal direction. The support block 2 is provided with a side upright wall 7, which is perpendicular to the transverse direction. The support block 2 is also provided with a second upright wall 8, which is perpendicular to the longitudinal direction.

[0053] like Figures 1 to 3 As shown, the angle steel drilling tool 1 further comprises a first baffle plate 3. The first baffle plate 3 has a second horizontal wall 9, and the second horizontal wall 9 is perpendicular to the vertical direction. The second horizontal wall 9 is opposite to the first horizontal wall 5 and has a vertical interval.

[0054] like Figures 1 to 3 As shown, the angle steel drilling tool 1 further comprises a second baffle plate 4. The second baffle plate 4 has a third upright wall 10, which is perpendicular to the longitudinal direction. The third upright wall 10 is opposite to the first upright wall 6 and has a longitudinal interval.

[0055] like Figure 3 As shown, the angle steel 11 has two waist plates perpendicular to each other, the waist plate to be drilled of the two waist plates is a drilling waist plate 12, and the waist plate that does not need to be drilled of the two waist plates is a non-drilling waist plate 13.

[0056] The angle steel 11 can be inserted into the angle steel drilling tool 1 in the horizontal direction. The height of the vertical interval between the second horizontal wall 9 and the first horizontal wall 5 is greater than the thickness of the drilling waist plate 12, so that the drilling waist plate 12 can be smoothly inserted into the vertical interval in the horizontal direction, and the vertical interval receives the drilling waist plate 12. The length of the longitudinal interval between the third upright wall 10 and the first upright wall 6 is greater than the thickness of the non-drilling waist plate 13, so that the non-drilling waist plate 13 can be smoothly inserted into the longitudinal interval in the horizontal direction, and the longitudinal interval receives the non-drilling waist plate 13.

[0057] During the process of inserting the angle steel 11 into the angle steel drilling tool 1 in the horizontal direction, the drilling waist plate 12 can be supported on the upper side of the first horizontal wall 5, and the second horizontal wall 9 can block the drilling waist plate 12, limiting the drilling waist plate 12 to be located in the vertical interval, preventing the angle steel 11 from slipping out of the angle steel drilling tool 1, and the drilling waist plate 12 can slide horizontally on the first horizontal wall 5 and the second horizontal wall 9, guiding the angle steel 11 to slide horizontally. The first main wall 6 and the third main wall 10 can block the non-drilling waist plate 13, limiting the non-drilling waist plate 13 to be located in the longitudinal interval, preventing the angle steel 11 from slipping out of the angle steel drilling tool 1, and the non-drilling waist plate 13 can slide horizontally on the first main wall 6 and the third main wall 10, guiding the angle steel 11 to slide horizontally. The horizontal edge of the drilling waist plate 12 extends horizontally, and the second positive wall 8 can block the horizontal edge of the drilling waist plate 12, limiting the non-drilling waist plate 13 to be located in the longitudinal interval, preventing the angle steel 11 from slipping out of the angle steel drilling tool 1, and the horizontal edge of the drilling waist plate 12 can slide horizontally on the second positive wall 8, guiding the angle steel 11 to slide horizontally. The longitudinal edge of the drilling waist plate 12 extends longitudinally, and the side wall 7 can block the longitudinal edge of the drilling waist plate 12. When the longitudinal edge of the drilling waist plate 12 is blocked by the side wall 7, the angle steel 11 is prevented from continuing to be inserted horizontally, and the angle steel 11 reaches the drilling station.

[0058] When the angle steel 11 is located at the drilling station, the drilling waist plate 12 can be supported on the upper side of the first horizontal wall 5, and the second horizontal wall 9 can block the drilling waist plate 12, restricting the drilling waist plate 12 to be located in the vertical interval, thereby preventing the angle steel 11 from slipping out of the angle steel drilling tool 1. The first front wall 6 and the third front wall 10 can block the non-drilling waist plate 13, restricting the non-drilling waist plate 13 to be located in the longitudinal interval, thereby preventing the angle steel 11 from slipping out of the angle steel drilling tool 1. The second front wall 8 can block the horizontal edge of the drilling waist plate 12, restricting the longitudinal movement of the drilling waist plate 12, thereby preventing the angle steel 11 from slipping out of the angle steel drilling tool 1. The side wall 7 can block the longitudinal edge of the drilling waist plate 12, restricting the lateral movement of the drilling waist plate 12, thereby preventing the angle steel 11 from slipping out of the angle steel drilling tool 1.

[0059] The angle steel 11 can exit the angle steel drilling tool 1 in the horizontal direction. The height of the vertical interval between the second horizontal wall 9 and the first horizontal wall 5 is greater than the thickness of the drilling waist plate 12, so that the drilling waist plate 12 can smoothly exit the vertical interval in the horizontal direction. The length of the longitudinal interval between the third upright wall 10 and the first upright wall 6 is greater than the thickness of the non-drilling waist plate 13, so that the non-drilling waist plate 13 can smoothly exit the longitudinal interval in the horizontal direction.

[0060] During the process of the angle steel 11 exiting the angle steel drilling tool 1 in the lateral direction, the drilling waist plate 12 can be supported on the upper side of the first horizontal wall 5, and the second horizontal wall 9 can block the drilling waist plate 12, limiting the drilling waist plate 12 to be located in the vertical interval, preventing the angle steel 11 from slipping out of the angle steel drilling tool 1, and the drilling waist plate 12 can slide horizontally on the first horizontal wall 5 and the second horizontal wall 9, guiding the angle steel 11 to slide horizontally. The first front wall 6 and the third front wall 10 can block the non-drilling waist plate 13, limiting the non-drilling waist plate 13 to be located in the longitudinal interval, preventing the angle steel 11 from slipping out of the angle steel drilling tool 1, and the non-drilling waist plate 13 can slide horizontally on the first front wall 6 and the third front wall 10, guiding the angle steel 11 to slide horizontally. The second front wall 8 can block the horizontal edge of the drilling waist plate 12, limit the longitudinal movement of the drilling waist plate 12, and prevent the angle steel 11 from falling out of the angle steel drilling tool 1, and the horizontal edge of the drilling waist plate 12 can slide horizontally on the second front wall 8 to guide the horizontal sliding of the angle steel 11. The longitudinal edge of the drilling waist plate 12 moves away from the side wall 7 in the horizontal direction, the angle steel 11 leaves the drilling station, and the angle steel 11 exits the angle steel drilling tool 1 in the horizontal direction.

[0061] The angle steel 11 is inserted into the angle steel drilling tool 1 laterally and reaches the drilling station. The angle steel 11 leaves the drilling station laterally and exits the angle steel drilling tool 1. The angle steel drilling tool 1 is convenient to operate to disassemble and assemble the angle steel 11, and multiple disassembly and assembly operations are omitted. The angle steel 11 can be directly drilled when it arrives at the drilling station, thereby improving the drilling operation efficiency, improving the processing accuracy, and avoiding injuries to operators caused by multiple disassembly and assembly of the angle steel 11.

[0062] like Figures 1 to 3As shown, the first baffle plate 3 may be provided with a through vertical hole 14, which extends vertically and passes through the first baffle plate 3. The vertical hole 14 guides the drill bit to pass through the vertical hole 14 to drill the drilling position of the drilling waist plate 12 located at the drilling station, thereby eliminating the marking operation, improving the drilling operation efficiency, and improving the processing accuracy.

[0063] like Figures 1 to 3 As shown, the first horizontal wall 5 may be provided with an avoidance groove 15, which is recessed from the first horizontal wall 5 to avoid the drill bit. When the drill bit drills the drilling waist plate 12, the drill bit passes through the drilling waist plate 12 and passes out from the lower surface of the drilling waist plate 12, and the avoidance groove 15 receives the drill bit to prevent the drill bit from drilling the first horizontal wall 5.

[0064] like Figures 1 to 3 As shown, the first upright wall 6 may be provided with a chip storage groove 16, which is recessed from the first upright wall 6. A chip removal groove 17 may be provided at the connection between the first horizontal wall 5 and the first upright wall 6, which is recessed from the first horizontal wall 5 and the first upright wall 6. The chip removal groove 17 is connected with the chip storage groove 16 and the avoidance groove 15, so that the chips in the avoidance groove 15 enter the chip storage groove 16 through the chip removal groove 17. When the drill bit drills the drilling waist plate 12, the chips of the drilling waist plate 12 fall into the avoidance groove 15, and the chips in the avoidance groove 15 enter the connected chip removal groove 17, and then enter the connected chip storage groove 16 from the chip removal groove 17, so as to prevent the chips from accumulating in the avoidance groove 15 and squeezing the drilling waist plate 12, which makes the drilling waist plate 12 unstable.

[0065] like Figures 1 to 3 As shown, the chip removal groove 17 can extend longitudinally along the first horizontal wall 5, connected to the avoidance groove 15 located on the longitudinal inner side, and the groove bottom wall of this section of the chip removal groove 17 can be flush with the groove bottom wall of the avoidance groove 15, so that the chips in the avoidance groove 15 can enter the chip removal groove 17. The chip removal groove 17 can extend vertically along the first upright wall 6, connected to the chip storage groove 16 located on the vertical lower side, and the groove bottom wall of this section of the chip removal groove 17 can be flush with the groove bottom wall of the chip storage groove 16, so that the chips in the chip removal groove 17 can fall into the chip storage groove 16.

[0066] like Figures 1 to 3 As shown, the avoidance groove 15 can extend laterally along the first horizontal wall 5, the chip storage groove 16 can extend laterally along the first upright wall 6, and a plurality of chip removal grooves 17 are arranged laterally at the connection between the first horizontal wall 5 and the first upright wall 6, thereby retaining the first horizontal wall 5 and the first upright wall 6 between adjacent chip removal grooves 17 to ensure the limitation and support of the diagonal steel 11.

[0067] like Figure 2As shown, the first horizontal wall 5 may be the top wall of the support block 2, the first upright wall 6 may be the side wall of the support block 2, the side upright wall 7 may protrude upward from the first horizontal wall 5, and the second upright wall 8 may protrude upward from the first horizontal wall 5. The side upright wall 7 and the second upright wall 8 cross each other, thereby dividing the top wall of the support block 2 into four first horizontal walls 5, forming four drilling stations, a first baffle plate 3 provides a second horizontal wall 9 for the four drilling stations, the front side wall of the support block 2 provides a first upright wall 6 for the two drilling stations on the front side, the rear side wall of the support block 2 provides a first upright wall 6 for the two drilling stations on the rear side, the second baffle plate 4 located on the front side of the support block 2 provides a third upright wall 10 for the two drilling stations on the front side, and the second baffle plate 4 located on the rear side of the support block 2 provides a third upright wall 10 for the two drilling stations on the rear side.

[0068] like Figures 1 to 3 As shown, the first baffle plate 3 can be fixed to the upper side of the second upright wall 8 by the first bolt 18 , and the drilling position on the drilling waist plate 12 can be adjusted by replacing the first baffle plate 3 with vertical holes 14 at different positions.

[0069] like Figures 1 to 3 As shown, the support block 2, the first baffle plate 3 and the second baffle plate 4 can be arranged on the bottom plate 19, the non-drilled waist plate 13 can be supported on the bottom plate 19, and the bottom edge of the non-drilled waist plate 13 can slide laterally on the bottom plate 19, and the guide angle steel 11 slides laterally. The support block 2 can be welded to the top wall of the bottom plate 19, and the second baffle plate 4 can be fixed to the top wall of the bottom plate 19 by the second bolt 20.

[0070] like Figures 1 to 3 As shown, the bottom plate 19 can be rotatably supported on the base 22 through the bearing 21. The position of the angle steel 11 can be adjusted by rotating the bottom plate 19 relative to the base 22, which reduces the adjustment of the drill bit position, is flexible and convenient, and improves the drilling efficiency. A protruding shaft can be set on the bottom wall of the bottom plate 19, and the shaft is supported by the bearing 21 in the seat hole of the base 22.

[0071] like Figures 1 to 3 As shown, the base 22 and the bottom plate 19 may be provided with a pin hole 23, and the pin hole 23 is provided with a pin 24, and the pin 24 is inserted into the pin hole 23 of the base 22 and the pin hole 23 of the bottom plate 19 to limit the rotation of the bottom plate 19 relative to the base 22. When the bottom plate 19 is operated to rotate relative to the base 22, the pin 24 is pulled out from the pin hole 23 of the base 22 and the pin hole 23 of the bottom plate 19, allowing the bottom plate 19 to rotate relative to the base 22. When the drill bit drills the drilling waist plate 12, the pin 24 is inserted into the pin hole 23 of the base 22 and the pin hole 23 of the bottom plate 19 to prevent the bottom plate 19 from rotating relative to the base 22, so as to keep the position of the drilling waist plate 12 stable. The pin hole 23 and the pin 24 can be distributed at the four corners of the base 22 and the bottom plate 19.

[0072] like Figures 1 to 3As shown, the base 22 can be supported on the guide plate 25, one of the guide plate 25 and the base 22 is provided with a slide 26, and the other of the guide plate 25 and the base 22 is provided with a slider 27, the slider 27 and the slide 26 can slide relative to each other, and the guide plate 25 guides the base 22 to slide, and the position of the angle steel 11 can be adjusted by operating the base 22 to slide relative to the guide plate 25, reducing the adjustment of the drill position, being flexible and convenient, and improving the drilling operation efficiency. The slide 26 can be set on the bottom wall of the base 22, recessed from the bottom wall of the base 22, and the slider 27 can be set on the top wall of the guide plate 25, protruding from the top wall of the guide plate 25, and the slide 26 is guided to slide by the slider 27, and the base 22 is guided to slide by the guide plate 25. The slide 26 can extend in the horizontal direction, and the slider 27 can extend in the horizontal direction, and the slide 26 and the slider 27 can slide relative to each other in the horizontal direction, and the guide plate 25 guides the base 22 to slide in the horizontal direction.

[0073] Although the present invention is disclosed as above by the embodiments, it is not intended to limit the present invention. Any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present invention.

Claims

1. An angle steel drilling tool, characterized in that include: The support block has a first horizontal wall and a first upright wall, and is provided with a side upright wall and a second upright wall, wherein the first horizontal wall is used to support the drilled waist plate of the angle steel, the first upright wall is used to block the non-drilled waist plate of the angle steel, the second upright wall is used to block the horizontal side of the drilled waist plate, and the side upright wall is used to block the longitudinal side of the drilled waist plate; A first baffle having a second horizontal wall, the second horizontal wall having a vertical interval with the first horizontal wall, for receiving a drilled waist plate, the second horizontal wall being used to block the drilled waist plate, the height of the vertical interval being configured to be greater than the thickness of the drilled waist plate to allow the drilled waist plate to be inserted laterally; as well as The second baffle has a third upright wall, which has a longitudinal gap with the first upright wall and is used to receive the non-drilled waist plate. The third upright wall is used to block the non-drilled waist plate, and the length of the longitudinal gap is configured to be greater than the thickness of the non-drilled waist plate to allow the non-drilled waist plate to be inserted laterally.

2. The angle steel drilling tool according to claim 1, characterized in that: The side wall protrudes from the first horizontal wall, and the second front wall protrudes from the first horizontal wall.

3. The angle steel drilling tool according to claim 1, characterized in that: The first baffle is provided with a through vertical hole to guide the drill bit to drill a hole in the drilling waist plate through the vertical hole.

4. The angle steel drilling tool according to claim 1, characterized in that: The first horizontal wall is provided with an avoidance groove, and the avoidance groove is recessed from the first horizontal wall to avoid the drill bit.

5. The angle steel drilling tool according to claim 4, characterized in that: The first upright wall is provided with a chip storage groove, which is recessed from the first upright wall. A chip removal groove is provided at the connection between the first horizontal wall and the first upright wall, which is recessed from the first horizontal wall and from the first upright wall. The chip removal groove connects the chip storage groove and the avoidance groove so that the chips in the avoidance groove enter the chip storage groove through the chip removal groove.

6. The angle steel drilling tool according to claim 5, characterized in that: The avoidance groove extends laterally along the first horizontal wall, the chip storage groove extends laterally along the first upright wall, a plurality of chip removal grooves are arranged laterally at the connection between the first horizontal wall and the first upright wall, and each chip removal groove extends longitudinally along the first horizontal wall and vertically along the first upright wall.

7. The angle steel drilling tool according to claim 1, characterized in that: The support block, the first baffle plate and the second baffle plate are arranged on a bottom plate, and the bottom plate is rotatably supported on a base through a bearing.

8. The angle steel drilling tool according to claim 7, characterized in that: The base and the bottom plate are provided with pin holes, the pin holes are provided with pins, and the pins are inserted into the pin holes of the base and the pin holes of the bottom plate to limit the rotation of the bottom plate relative to the base.

9. The angle steel drilling tool according to claim 1, characterized in that: The supporting block, the first baffle plate and the second baffle plate are arranged on the base, the base is supported by the guide plate, one of the guide plate and the base is provided with a slide groove, the other of the guide plate and the base is provided with a slider, the slide groove and the slider can slide relative to each other, and the guide plate thereby guides the base to slide.

10. The angle steel drilling tool according to claim 9, characterized in that: The slide groove and the slide block can slide transversely, and the guide plate thereby guides the base to slide transversely.

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