A fixture for facilitating drilling of sheet metal and the drilling device thereof

Abstract

This utility model provides a fixture for facilitating drilling of sheet metal and the drilling device formed therefrom. The fixture includes: a base plate; at least two support blocks fixed to the base plate; a placement platform provided on the side of each support block near the base plate; and pressure blocks fixed to the support blocks. When the sheet metal is placed in the fixture, the bottom of the sheet metal abuts against the placement platform, and the top of the sheet metal abuts against the pressure blocks. Due to the presence of the placement platform, the bottom of the sheet metal is suspended relative to the base plate. Because there is still a certain distance between the bottom of the sheet metal and the base plate, there is no need to worry about the drill bit touching the base plate when drilling. By adjusting the drill bit path, a through hole can be drilled in one pass, improving drilling efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of drilling fixtures, and in particular to a fixture for facilitating drilling of plates and the drilling device formed therefrom. Background Technology

[0002] During the assembly of an air conditioner, plate-shaped parts are required in specific locations, and these parts need to be drilled using CNC machine tools. Specifically, the material of the plate-shaped parts is hot-rolled steel plate Q345R, which has good plasticity and weldability, and its strength and hardness are at a medium level among metal materials. The part of the plate-shaped parts that needs to be machined is a U-shaped hole, 18mm wide and 43mm long, centered on the edge of the plate-shaped parts, at a position of 30-60mm.

[0003] The current machining method involves using an electromagnet to hold the plate-shaped part onto a disk, and then using a flat milling cutter to shape the holes. This current method has the following drawbacks:

[0004] First, since the bottom surface of the plate-shaped part is in direct contact with the disk, in order to avoid the tool hitting the disk during machining, the machining coordinates are usually raised by about 0.2mm, which means that when the machine tool makes a hole, it must leave about 0.2mm that cannot be milled through.

[0005] Secondly, after processing one side, the other side is removed manually. After manually removing the remaining part, a grinder is used to manually grind the edge of the hole to create a chamfer, which is inefficient and the accuracy of the bevel angle may not be guaranteed.

[0006] Finally, a grinding machine is needed to finish the back bevel, and there are certain risks involved in using the grinding machine. Utility Model Content

[0007] To overcome the problems existing in related technologies, one of the objectives of this utility model is to provide a fixture that facilitates drilling holes in sheet metal. Due to the presence of the placement platform, the bottom of the sheet metal is suspended relative to the base plate. Since there is still a certain distance between the bottom of the sheet metal and the base plate, there is no need to worry about the drill bit touching the base plate when drilling. By adjusting the drill bit path, a through hole can be drilled in one go, improving drilling efficiency and accuracy.

[0008] A fixture for facilitating drilling of sheet metal, comprising:

[0009] Base plate,

[0010] At least two support blocks are fixed to the base plate, and a placement platform is provided on the side of the support blocks near the base plate;

[0011] The pressure block is fixed on the support block. When the plate is placed in the fixture, the bottom of the plate abuts against the placement platform and the top of the plate abuts against the pressure block.

[0012] The presence of the platform allows the bottom of the board to be suspended relative to the base plate. Because there is still a certain distance between the bottom of the board and the base plate, there is no need to worry about the drill bit touching the base plate when drilling. By adjusting the drill bit path, a through hole can be drilled in one pass, improving drilling efficiency and accuracy.

[0013] In a preferred embodiment of this invention, the base plate is rectangular, there are four support blocks, the four support blocks are respectively located on the four sides of the base plate, and the placement platform is located on the side of the support block closest to the center point of the base plate.

[0014] In one specific embodiment, the base plate and the sheet material are both rectangular. Four support blocks can be installed on each of the four sides of the base plate to support the four sides of the sheet material. The placement platforms are located on the side of the support blocks closest to the center of the base plate; that is, the placement platforms in all four support blocks protrude towards the center of the base plate, and the positions of the four placement platforms are perfectly matched to the dimensions of the sheet material, ensuring that the sheet material can be placed precisely on the four placement platforms. By ensuring that the shapes of the base plate and the sheet material are compatible, and that the positions of the placement platforms in the support blocks are compatible with the edges of the sheet material, stable support for the sheet material can be achieved, ensuring its stability.

[0015] In a preferred embodiment of this invention, the support block comprises a fixed support block and a sliding support block. The fixed support block is fixed in the base plate, and the sliding support block is slidably connected to the base plate.

[0016] In this application, the fixed support block refers to a support block fixed in the base plate, whose position is fixed and cannot be moved; the sliding support block refers to a support block that can slide relative to the base plate, whose position can be adjusted. By setting the sliding support block, it is possible to adapt to plates of different sizes, thus expanding the applicability of the fixture in this application. At the same time, setting the sliding support block facilitates the insertion and removal of plates. When it is necessary to insert or remove a plate, simply move the position of the sliding support block to make room for the plate to move in or out. When it is necessary to fix the plate, move the sliding support block to the position where it abuts against the plate to secure the plate.

[0017] In a preferred embodiment of this invention, there are two fixed support blocks, which are arranged adjacent to each other; there are also two sliding support blocks, which are arranged adjacent to each other.

[0018] As a specific embodiment, four support blocks are located on the four sides of the base plate of the cuboid structure. Two adjacent fixed support blocks can support two adjacent sides of the plate. When the length and / or width of the plate changes, the positions of two sliding support blocks can be moved accordingly so that the positions of the sliding support blocks are adapted to the other two sides of the plate, so as to achieve fastening of plates of different lengths and / or different widths and expand the applicability of the clamp.

[0019] In a preferred embodiment of this invention, there are two fixed support blocks, which are arranged opposite to each other; there are also two sliding support blocks, which are arranged opposite to each other.

[0020] In one specific embodiment, four support blocks are located on the four sides of the rectangular base plate. Two fixed support blocks support opposite sides of the plate. When the length or width of the plate changes, the positions of two sliding support blocks can be moved accordingly, adapting their positions to the other two sides of the plate. This allows for the clamping of plates of different lengths or widths, expanding the applicability of the clamp. When the sliding support blocks are positioned opposite each other, it is only suitable for clamping batches of plates with a fixed dimension in one direction and a variable dimension in the other.

[0021] In a preferred embodiment of this invention, a slide rail is provided in the base plate, and the sliding support block is slidably connected to the base plate through the slide rail.

[0022] By setting a slide rail in the base plate and sliding the sliding support block to the slide rail, the sliding support block can be moved conveniently and efficiently, improving the adjustment efficiency of the sliding support block. At the same time, the slide rail also provides limits and guidance for the movement of the sliding support block, preventing the sliding support block from deviating in different directions during the movement, thus affecting its compatibility with the shape of the plate.

[0023] In a preferred embodiment of this invention, the slide rail is a straight through hole penetrating the base plate, and the sliding support block is provided with a sliding fastening through hole, which is adapted to the straight through hole.

[0024] In this application, the straight through-hole extends parallel to one side of the plate. A fastening screw can be used to fix both the sliding fastening through-hole and the straight through-hole. When the sliding support block needs to be moved, the fastening screw is removed, allowing relative movement between the two. After the sliding support block is in place, the fastening screw is inserted through both the fastening through-hole and the straight through-hole to fix the sliding support block. At this point, the sliding support block and the placement platform in the fixed support block form a support platform for accommodating the plate. In this application, the straight through-hole can extend to the center of the base plate in the length direction. The width of the straight through-hole can be adapted to the size of the sliding fastening through-hole. The outer diameter of the fastening screw is adapted to the width of the sliding fastening through-hole and the straight through-hole. The outer diameter of the fastening nut connected to the fastening screw is larger than the inner diameter of the sliding fastening through-hole. This application, through the cooperation of the straight through-hole, the sliding fastening through-hole, the fastening screw, and the fastening nut, improves the ease of movement and fastening of the sliding support block, and enhances the adjustment efficiency and accuracy of the sliding support block.

[0025] In a preferred embodiment of this invention, the sliding support block and the fixed support block are provided with fixing and fastening through holes, and the base plate is provided with a base plate through hole, which is adapted to the fixing and fastening through hole.

[0026] In addition to the sliding fastening through-hole, both the sliding support block and the fixed support block in this application are provided with fixing fastening through-holes. The fixed support block is directly fixed to the base plate through the fixing fastening through-hole and the base plate through-hole, and its position is not adjustable. Besides being fixed to the straight through-hole, the sliding support block also needs further positioning and fixing through the fixing fastening through-hole and the base plate through-hole because the straight through-hole cannot limit its movement along its length. When the sliding support block needs to be moved, the fastening screws in the fixing fastening through-hole and the base plate through-hole must be removed first. The fixing fastening through-hole and the base plate through-hole in this application are provided to ensure further fixation of the sliding support block and to simultaneously tighten the fixed support block.

[0027] In a preferred embodiment of this invention, when the plate is placed in the clamp, the front end of the pressure block abuts against the top of the plate, and the rear end of the pressure block is fixed in the support block by fasteners; the fasteners can adjust the height of the pressure block relative to the base plate.

[0028] In this application, the height of the pressure block relative to the support block can be adjusted using fasteners. This is to accommodate boards of different heights. When the board heights are inconsistent, the height of the pressure block relative to the placement platform can be adjusted to accommodate different boards. Similar to the placement platform, the front end of the pressure block protrudes from the support block to abut against the upper surface of the board. Before placing the board on the placement platform, the pressure block and support block can be disassembled. After the board is placed on the placement platform, the pressure block is fixed to the support block using fasteners. By adjusting the position and height of the fasteners, the pressure block abuts against the upper surface of the board. At this point, the lower surface of the board is abutted by the placement platform, and the upper surface is abutted by the pressure block, achieving a secure fit between the upper and lower surfaces of the board, thus enabling double-sided suspended clamping of the board.

[0029] The second objective of this application is to provide a drilling apparatus, including a clamp as described above for facilitating drilling of sheet metal.

[0030] The drilling device provided in this application can suspend the center of the sheet metal for machining, allowing U-shaped holes to be milled directly through, and also enabling back-side chamfering. This allows for one-time machining of the sheet metal, improving processing efficiency. In this application, the entire sheet metal machining process can be completed by CNC machine tools. Compared to previous manual machining, machine tool machining improves the machining accuracy of the parts. This application eliminates the grinding step, reducing the labor intensity of workers, avoiding the need for a grinding machine, and also increasing the safety factor of this sheet metal machining process.

[0031] The beneficial effects of this utility model are as follows:

[0032] This application provides a clamp for facilitating drilling of sheet metal. The clamp is used to hold the sheet metal and then drill holes in it. Specifically, the clamp includes a base plate, at least two support blocks, and a pressure block. A placement platform is provided on the side of each support block near the base plate. This platform supports the bottom of the sheet metal, maintaining a certain distance between the sheet metal and the base plate, thus ensuring the bottom of the sheet metal is suspended relative to the base plate. The at least two support blocks provide support forces to the sheet metal from two different directions. A pressure block is also provided on each support block to limit the top of the sheet metal. When the sheet metal is placed in the clamp, the bottom of the sheet metal abuts against the placement platform, and the top of the sheet metal abuts against the pressure block. The pressure block and the placement platform in the support block respectively limit and fix the top and bottom of the support plate, achieving clamping of the upper and lower surfaces of the sheet metal. Simultaneously, due to the presence of the placement platform, the bottom of the sheet metal is suspended relative to the base plate. Since there is still a certain distance between the bottom of the board and the base plate, there is no need to worry about the drill bit touching the base plate when drilling. By adjusting the drill bit path, a through hole can be drilled in one go, which improves the efficiency and accuracy of drilling.

[0033] This application provides a drilling device, including a fixture as described above for facilitating drilling of sheet metal. Due to the presence of a placement platform, the bottom of the sheet metal is suspended relative to a base plate. Because there is still a certain distance between the bottom of the sheet metal and the base plate, there is no need to worry about the drill bit contacting the base plate during drilling. By adjusting the drill bit path, a through hole can be drilled in one pass, improving drilling efficiency and accuracy. The drilling device provided in this application can suspend the center of the sheet metal for processing, allowing U-shaped holes to be milled directly through, and also enabling back-side chamfering, allowing the sheet metal to be processed directly in one pass, improving processing efficiency. In this application, the entire sheet metal processing can be completed by a CNC machine tool. Compared to previous manual processing, using machine tools improves the machining accuracy of the parts. This application reduces the grinding step, lowering the labor intensity of workers, eliminating the need for a grinding machine, and also improving the safety factor of this sheet metal processing step. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the fixture in the embodiments of this application;

[0035] Figure 2 This is a schematic diagram of the structure of the base plate in an embodiment of this application;

[0036] Figure 3 This is a schematic diagram of the sliding support block in an embodiment of this application;

[0037] Figure 4 This is a schematic diagram of one side of the sliding support block in an embodiment of this application;

[0038] Figure 5 This is a schematic diagram of another side view of the sliding support block in an embodiment of this application;

[0039] Figure 6 This is a top view of the pressure block in an embodiment of this application;

[0040] Figure 7 This is a side view of the pressure block in an embodiment of this application.

[0041] Figure label:

[0042] 11. Base plate; 12. Straight through hole; 13. Base plate through hole; 21. Fixed support block; 22. Sliding support block; 23. Placement platform; 24. Sliding fastening through hole; 25. Fixed fastening through hole; 31. Pressure block; 32. Pressing through hole. Detailed Implementation

[0043] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0044] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0045] It should be understood that although the terms "first," "second," "third," etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this invention, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0046] Example 1

[0047] like Figures 1-7 As shown, this application provides a fixture for facilitating drilling of sheet metal, comprising:

[0048] Base plate 11,

[0049] At least two support blocks are fixed on the base plate 11, and a placement platform 23 is provided on the side of the support blocks near the base plate 11;

[0050] The pressure block 31, which is fixed on the support block, abuts the bottom of the plate against the placement platform 23 and the top of the plate against the pressure block 31 when the plate is placed in the fixture.

[0051] In this application, the base plate 11 can be made of iron. The drilling device is equipped with a disk. After the disk is magnetized, the base plate 11 can be fixed, thereby fixing the entire fixture in the disk of the drilling device. This facilitates the installation and separation of the fixture and the disk without the need for additional fixing devices.

[0052] In this application, the placement platform 23 is a protruding structure extending beyond the support block, used to support the bottom of the board. At least two support blocks are required; they can be arranged in parallel to support the board from both ends, or adjacent to each other to support the board from both sides. The core of this application is that the placement platform 23 protrudes relative to the support block, forming an L-shaped cross-section to support the bottom of the board. This ensures that the bottom of the board, except at the supported area, is suspended. Therefore, when drilling into the board, there is no need to raise the drill bit for fear of damaging the base plate 11; the board can be drilled directly through, and operations such as grinding at the drilled area can be performed, improving the ease of drilling.

[0053] It should be noted that the number of support blocks in this application can be determined according to the shape of the board. For example, when the board is rectangular, four support blocks can be set to support the four sides of the board. When the edge of the board needs to be drilled, the length of the support block on the corresponding side can be set to avoid the drilling area.

[0054] In this application, the length of the support block can be basically the same as the edge length of the plate, or it can simply be a support at a specific position on the edge of the plate.

[0055] This application provides a clamp for facilitating drilling of sheet metal. The clamp is used to hold the sheet metal and then drill holes in it. Specifically, the clamp includes a base plate 11, at least two support blocks, and a pressure block 31. A placement platform 23 is provided on the side of the support block closest to the base plate 11. The placement platform 23 supports the bottom of the sheet metal, maintaining a certain distance between the sheet metal and the base plate 11, thus ensuring the bottom of the sheet metal is suspended relative to the base plate 11. The at least two support blocks provide support forces to the sheet metal from two different directions. A pressure block 31 is also provided on the support block, limiting the top of the sheet metal. When the sheet metal is placed in the clamp, the bottom of the sheet metal abuts against the placement platform 23, and the top of the sheet metal abuts against the pressure block 31. The pressure block 31 and the placement platform 23 in the support block respectively limit and fix the top and bottom of the support plate, achieving clamping of the upper and lower surfaces of the sheet metal. Simultaneously, due to the presence of the placement platform 23, the bottom of the sheet metal is suspended relative to the base plate 11. Since there is still a certain distance between the bottom of the board and the base plate 11, there is no need to worry about the drill bit touching the base plate 11 when drilling the board. By adjusting the drill bit path, a through hole can be drilled in one go, which improves the efficiency and accuracy of drilling.

[0056] Example 2

[0057] like Figures 1-7 As shown, this application provides a fixture for facilitating drilling of sheet metal, comprising:

[0058] Base plate 11,

[0059] At least two support blocks are fixed on the base plate 11, and a placement platform 23 is provided on the side of the support blocks near the base plate 11;

[0060] The pressure block 31, which is fixed on the support block, abuts the bottom of the plate against the placement platform 23 and the top of the plate against the pressure block 31 when the plate is placed in the fixture.

[0061] Furthermore, the base plate 11 is rectangular, and there are four support blocks, which are respectively located on the four sides of the base plate 11. The placement platform 23 is located on the side of the support block closer to the center point of the base plate 11.

[0062] In one specific embodiment, the base plate 11 is rectangular, and the sheet material is also rectangular. Four support blocks can be set on each of the four sides of the base plate 11 to support the four sides of the sheet material. The placement platform 23 is located on the side of the support block closest to the center point of the base plate 11; that is, the placement platform 23 in all four support blocks protrudes towards the center point of the base plate 11, and the positions of the four placement platforms 23 are perfectly matched to the size of the sheet material, ensuring that the sheet material can be placed precisely on the four placement platforms 23. By ensuring that the shapes of the base plate 11 and the sheet material are compatible, and that the positions of the placement platforms 23 in the support blocks are compatible with the edges of the sheet material, stable support for the sheet material can be achieved, ensuring its stability.

[0063] Furthermore, the support block comprises a fixed support block 21 and a sliding support block 22. The fixed support block 21 is fixed in the base plate 11, and the sliding support block 22 is slidably connected to the base plate 11.

[0064] In this application, the fixed support block 21 refers to a support block fixed in the base plate 11, whose position is fixed and cannot be moved; the sliding support block 22 refers to a support block that can slide relative to the base plate 11, whose position can be adjusted. By setting the sliding support block 22, it is possible to adapt to plates of different sizes, thus expanding the applicability of the fixture in this application. At the same time, setting the sliding support block facilitates the insertion and removal of plates. When it is necessary to insert or remove a plate, simply move the position of the sliding support block 22 to make room for the plate to move in or out. When it is necessary to fix the plate, move the sliding support block 22 to the position where it abuts against the plate to achieve the fastening of the plate.

[0065] Furthermore, there are two fixed support blocks 21, and the two fixed support blocks 21 are arranged adjacent to each other; there are two sliding support blocks 22, and the two sliding support blocks 22 are arranged adjacent to each other.

[0066] As a specific embodiment, four support blocks are located on the four sides of the cuboid base plate 11. Two adjacent fixed support blocks 21 can support the two adjacent sides of the plate. When the length and / or width of the plate changes, the positions of two sliding support blocks 22 can be moved accordingly so that the positions of the sliding support blocks 22 are adapted to the other two sides of the plate, so as to achieve fastening of plates of different lengths and / or different widths and expand the applicability of the clamp.

[0067] Furthermore, there are two fixed support blocks 21, and the two fixed support blocks 21 are arranged opposite to each other; there are two sliding support blocks 22, and the two sliding support blocks 22 are arranged opposite to each other.

[0068] In one specific embodiment, four support blocks are located on the four sides of the rectangular base plate 11. The two fixed support blocks 21 support opposite sides of the plate. When the length or width of the plate changes, the positions of the two sliding support blocks 22 can be moved accordingly, so that the positions of the sliding support blocks 22 match the other two sides of the plate, thereby achieving the clamping of plates of different lengths or widths and expanding the applicability of the clamp. When the sliding support blocks 22 are positioned opposite each other, it is only suitable for clamping batches of plates with a fixed dimension in one direction and a variable dimension in the other direction.

[0069] Furthermore, a slide rail is provided in the base plate 11, and the sliding support block 22 is slidably connected to the base plate 11 through the slide rail.

[0070] By setting a slide rail in the base plate 11 and sliding the sliding support block 22 to the slide rail, the sliding support block 22 can be moved conveniently and efficiently, improving the adjustment efficiency of the sliding support block 22. At the same time, the slide rail also provides limits and guidance for the movement of the sliding support block 22, preventing the sliding support block 22 from deviating in different directions during the movement, thus affecting its compatibility with the shape of the plate.

[0071] Furthermore, the slide rail is a straight through hole 12 penetrating the base plate 11, and the sliding support block 22 is provided with a sliding fastening through hole 24, which is adapted to the straight through hole 12.

[0072] In this application, the extension direction of the straight through hole 12 is parallel to one of the edges of the plate. A fastening screw can be used to fix both the sliding fastening through hole 24 and the straight through hole 12. When the sliding support block 22 needs to be moved, the fastening screw is removed, allowing relative movement between the two. After the sliding support block 22 is in place, the fastening screw is inserted through the fastening through hole and the straight through hole 12 to fix the sliding support block 22. At this time, the sliding support block 22 and the placement platform 23 in the fixed support block 21 form a support platform for accommodating the plate. In this application, the straight through hole 12 can extend to the center of the base plate 11 in the length direction. The width of the straight through hole 12 can be adapted to the size of the sliding fastening through hole 24. The outer diameter of the fastening screw is adapted to the width of the sliding fastening through hole 24 and the straight through hole 12. The outer diameter of the fastening nut connected to the fastening screw is larger than the inner diameter of the sliding fastening through hole 24. This application improves the ease of movement and fastening of the sliding support block 22 by using the straight through hole 12, the sliding fastening through hole 24, and the fastening screw and fastening nut, thereby improving the adjustment efficiency and accuracy of the sliding support block 22.

[0073] Furthermore, the sliding support block 22 and the fixed support block 21 are provided with fixing and fastening through holes 25, and the base plate 11 is provided with a base plate through hole 13, which is adapted to the fixing and fastening through hole 25.

[0074] In addition to the sliding fastening through hole 24, both the sliding support block 22 and the fixed support block 21 in this application are provided with fixing fastening through holes 25. The fixed support block 21 is directly fixed to the base plate 11 through the fixing fastening through hole 25 and the base plate through hole 13, and the position of the fixed support block 21 is not adjustable. Besides being fixed to the straight through hole 12, the sliding support block 22 also needs to be further limited and fixed through the fixing fastening through hole 25 and the base plate through hole 13 because the straight through hole 12 cannot limit the sliding support block 22 in the length direction. When it is necessary to move the sliding support block 22, the fastening screws in the fixing fastening through hole 25 and the base plate through hole 13 must be removed first. The fixing fastening through hole 25 and the base plate through hole 13 in this application are provided to ensure further fixation of the sliding support block 22, and also to fasten the fixed support block 21.

[0075] Furthermore, when the plate is placed in the fixture, the front end of the pressure block 31 abuts against the top of the plate, and the rear end of the pressure block 31 is fixed in the support block by fasteners; the fasteners can adjust the height of the pressure block 31 relative to the base plate 11.

[0076] In this application, the height of the pressure block 31 relative to the support block can be adjusted by fasteners. This is to accommodate boards of different heights. When the board heights are inconsistent, the height of the pressure block 31 relative to the placement platform 23 can be adjusted to accommodate different boards. Similar to the placement platform 23, the front end of the pressure block 31 protrudes from the support block to abut against the upper surface of the board. Before placing the board on the placement platform 23, the pressure block 31 and the support block can be disassembled. After the board is placed on the placement platform 23, the pressure block 31 is fixed in the support block using fasteners. By adjusting the position and height of the fasteners, the pressure block 31 abuts against the upper surface of the board. At this time, the lower surface of the board is abutted by the placement platform 23, and the upper surface is abutted by the pressure block 31, achieving fastening of both the upper and lower surfaces of the board, thereby achieving double-sided suspended clamping of the board.

[0077] Example 3

[0078] like Figures 1-7 As shown, this application provides a clamp for facilitating drilling of sheet metal, used to clamp the sheet metal and use the clamped sheet metal for drilling. Specifically, the clamp includes a base plate 11, two fixed support blocks 21, two sliding support blocks 22, and a pressure block 31 located on top of the fixed support blocks 21 and the sliding support blocks 22. The sliding support blocks 22 and the fixed support plates are provided with a placement platform 23 on the side near the base plate 11. The placement platform 23 is used to support the bottom of the sheet metal, so that the sheet metal and the base plate 11 maintain a certain distance, so that the bottom of the sheet metal is suspended relative to the base plate 11. At least two support blocks are used to provide support force to the sheet metal from two different directions. A pressure block 31 is also provided on the support blocks, and the pressure block 31 is used to limit the top of the sheet metal.

[0079] The placement platform 23 protrudes relative to the support block, forming an L-shaped cross section, which is used to support the bottom of the board, thus ensuring that the bottom of the board is suspended except at the support position; in this embodiment, a 5mm wide and 20mm deep step is opened on the side of the support block near the center point of the base plate 11 to form the placement platform 23.

[0080] The base plate 11 is made of iron. A disk is installed in the drilling device. After the disk is magnetized, the base plate 11 can be fixed, and the entire fixture can be fixed in the disk of the drilling device. This facilitates the installation and separation of the fixture and the disk without the need for additional fixing devices.

[0081] In this embodiment, the base plate 11 is rectangular, and the plate material is also rectangular. There are two fixed support blocks 21, which are arranged adjacent to each other. There are also two sliding support blocks 22, which are arranged adjacent to each other. The two adjacent fixed support blocks 21 can support the two adjacent sides of the plate material. When the length and / or width of the plate material changes, the positions of the two sliding support blocks 22 can be moved accordingly, so that the positions of the sliding support blocks 22 are adapted to the other two sides of the plate material, thereby achieving the fastening of plates of different lengths and / or widths and expanding the applicability of the clamp.

[0082] The base plate 11 is provided with a straight through hole 12 and a base plate through hole 13. The straight through hole 12 is provided on the side that is adapted to the two sliding support blocks 22 and is used to adjust the position of the sliding support blocks 22.

[0083] The straight through hole 12 extends parallel to one side of the plate. A fastening screw can be used to fix both the sliding fastening through hole 24 and the straight through hole 12. When the sliding support block 22 needs to be moved, the fastening screw is removed, allowing relative movement between the two. After the sliding support block 22 is in place, the fastening screw is inserted through the fastening through hole and the straight through hole 12 to fix the sliding support block 22. At this time, the sliding support block 22 and the placement platform 23 in the fixed support block 21 form a support platform for accommodating the plate. In this application, the straight through hole 12 can extend to the center of the base plate 11 in the length direction. The width of the straight through hole 12 can be adapted to the size of the sliding fastening through hole 24. The outer diameter of the fastening screw is adapted to the width of the sliding fastening through hole 24 and the straight through hole 12. The outer diameter of the fastening nut connected to the fastening screw is larger than the inner diameter of the sliding fastening through hole 24.

[0084] The sliding support block 22 is also provided with a fixing and fastening through hole 25. In addition to being fixed with the straight through hole 12, the sliding support block 22 also needs to be further limited and fixed through the fixing and fastening through hole 25 and the base plate through hole 13 because the straight through hole 12 cannot limit the sliding support block 22 in the length direction. When it is necessary to move the sliding support block 22, the fastening screws in the fixing and fastening through hole 25 and the base plate through hole 13 need to be removed first.

[0085] The fixed support block 21 is provided with a fixing fastening through hole 25. The fixed support block 21 is directly fixed in the base plate 11 through the fixing fastening through hole 25 and the base plate through hole 13, and the position of the fixed support block 21 is not adjustable.

[0086] Similar to the placement platform 23, the front end of the pressure block 31 protrudes from the support block to abut against the upper surface of the sheet material. Before placing the sheet material on the placement platform 23, the pressure block 31 and support block can be disassembled. After the sheet material is placed on the placement platform 23, the pressure block 31 is fixed in the support block using fasteners. By adjusting the position and height of the fasteners, the pressure block 31 abuts against the upper surface of the sheet material. At this point, the lower surface of the sheet material is abutted by the placement platform 23, and the upper surface is abutted by the pressure block 31, achieving a secure fit between the upper and lower surfaces of the sheet material, thus enabling double-sided suspended clamping of the sheet material. The pressure block 31 has a press-fit through hole 32, and the support block has a connecting through hole that matches the press-fit through hole 32. Fasteners pass through the press-fit through hole 32 and the connecting through hole sequentially to secure the pressure block 31 and the support block. To ensure a stable connection between the pressure block 31 and the support block, two press-fit through holes 32 can be provided in the same pressure block 31.

[0087] In this embodiment, for longer support blocks, two or more pressure blocks 31 can be set in the support block; for shorter support blocks, only one pressure block 31 can be set in the support block. When the edge of the board needs to be drilled, the length of the support block on the corresponding edge can be set to avoid the drilling area.

[0088] This embodiment also provides a drilling device, including a clamp as described above for facilitating drilling of sheet metal. The clamp supports the edge of the sheet metal, suspending the area to be processed on the sheet metal in the air, ensuring that there is nothing below the sheet metal that interferes with the cutting tool. In this way, when drilling the sheet metal, the hole can be milled through. And because the sheet metal is in a suspended state, a special back chamfering cutter can be used to directly process the back chamfer without turning the sheet metal over, achieving processing in one clamping.

[0089] The drilling device provided in this application can suspend the center of the sheet metal for machining, allowing U-shaped holes to be milled directly through, and also enabling back-side chamfering. This allows for one-time machining of the sheet metal, improving processing efficiency. In this application, the entire sheet metal machining process can be completed by CNC machine tools. Compared to previous manual machining, machine tool machining improves the machining accuracy of the parts. This application eliminates the grinding step, reducing the labor intensity of workers, avoiding the need for a grinding machine, and also increasing the safety factor of this sheet metal machining process.

[0090] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings. In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0091] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0092] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0093] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixture for facilitating drilling of sheet metal, characterized in that, include: Base plate (11), At least two support blocks are fixed on the base plate (11), and a placement platform (23) is provided on the side of the support blocks near the base plate (11); The pressure block (31) fixed on the support block, when the plate is placed in the fixture, the bottom of the plate abuts against the placement platform (23) and the top of the plate abuts against the pressure block (31).

2. The fixture for facilitating drilling of sheet metal according to claim 1, characterized in that, The base plate (11) is rectangular, and there are four support blocks. The four support blocks are located on the four sides of the base plate (11), and the placement platform (23) is located on the side of the support block near the center point of the base plate (11).

3. The fixture for facilitating drilling of sheet metal according to claim 1, characterized in that, The support blocks are a fixed support block (21) and a sliding support block (22). The fixed support block (21) is fixed in the base plate (11), and the sliding support block (22) is slidably connected to the base plate (11).

4. The fixture for facilitating drilling of sheet metal according to claim 3, characterized in that, There are two fixed support blocks (21), and the two fixed support blocks (21) are arranged adjacent to each other; there are two sliding support blocks (22), and the two sliding support blocks (22) are arranged adjacent to each other.

5. A fixture for facilitating drilling of sheet metal according to claim 3, characterized in that, There are two fixed support blocks (21), and the two fixed support blocks (21) are arranged opposite to each other; there are two sliding support blocks (22), and the two sliding support blocks (22) are arranged opposite to each other.

6. A fixture for facilitating drilling of sheet metal according to claim 3, characterized in that, The base plate (11) is provided with a slide rail, and the sliding support block (22) is slidably connected to the base plate (11) through the slide rail.

7. A fixture for facilitating drilling of sheet metal according to claim 6, characterized in that, The slide rail is a straight through hole (12) that penetrates the base plate (11), and the sliding support block (22) is provided with a sliding fastening through hole (24), which is adapted to the straight through hole (12).

8. A fixture for facilitating drilling of sheet metal according to claim 6, characterized in that, The sliding support block (22) and the fixed support block (21) are provided with a fixing and fastening through hole (25), and the base plate (11) is provided with a base plate through hole (13), which is adapted to the fixing and fastening through hole (25).

9. A fixture for facilitating drilling of sheet metal according to claim 1, characterized in that, When the plate is placed in the fixture, the front end of the pressure block (31) abuts against the top of the plate, and the rear end of the pressure block (31) is fixed in the support block by fasteners; the fasteners can adjust the height of the pressure block (31) relative to the base plate (11).

10. A drilling device, characterized in that, Includes a fixture for facilitating drilling of sheet metal as described in any one of claims 1-9.

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