A tool for cutting sheet metal

Abstract

This utility model discloses a sheet metal cutting auxiliary tool, including a first stop bar, a second stop bar, and a first slide block slidably connected to the first stop bar. The first slide block slides along the length direction of the first stop bar. The first slide block is provided with a first connecting part and a second connecting part for connecting the second stop bar. When the second stop bar is connected to the first connecting part, the second stop bar and the first stop bar are perpendicular to each other; when the second stop bar is connected to the second connecting part, the second stop bar and the first stop bar are collinear. This utility model's sheet metal cutting auxiliary tool can meet the requirements for assisting in cutting and cornering sheet metal. When not in use, the two stop bars can be disassembled and separated for easy carrying and storage.

Description

Technical Field

[0001] This utility model belongs to the field of sheet metal cutting auxiliary technology, and specifically relates to a sheet metal cutting auxiliary tool. Background Technology

[0002] In furniture cabinet manufacturing, it is generally necessary to cut boards into appropriate shapes and sizes, and then assemble multiple cut boards together. The board cutting process includes board cutting and corner cutting. Board cutting only requires cutting along the longitudinal direction of the board; while corner cutting requires cutting along both the longitudinal and transverse directions of the board.

[0003] The existing method for cutting the corners of a board is as follows: First, measure and mark the length and width of the board to be cut. Then, place two guide strips according to the length and width marks on the board and align the two guide strips perpendicular to each other. Next, fix the two guide strips to the board with a clamp. Finally, use an electric saw to cut the board along the edges of the two guide strips to cut the board to the appropriate size, thus completing the corner cutting operation.

[0004] The current method for cutting sheet metal involves first measuring and marking the width of the sheet metal to be cut. Then, a guide strip, longer than or equal to the length of the sheet metal, is placed longitudinally at the marked width. The guide strip is then secured with clamps. Finally, an electric saw is used to cut the sheet metal along the edge of the guide strip, thus cutting the sheet metal to the appropriate size. The guide strip guides the electric saw, preventing it from shifting during cutting and making the cutting process more convenient.

[0005] However, directly attaching the two stop bars to each other in a perpendicular position to guide the chainsaw results in an unstable fixation because there is no connection between them. This makes it easy for the stop bars to shift position when moved or secured with clamps, making it difficult to maintain a perpendicular position. Furthermore, an unstable fixation also makes it difficult to guide the chainsaw to cut in a straight line, thus affecting the cutting operation. In addition, existing stop bars used for board cutting operations are typically a single bar longer than or equal to the length of the board material, resulting in an excessively long stop bar that is inconvenient to carry and store. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an auxiliary tool for cutting boards. This auxiliary tool can meet the requirements for cutting and cornering boards, and is convenient to carry and store.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a plate cutting auxiliary tool, including a first stop bar, a second stop bar, and a first slide block slidably connected to the first stop bar. The first slide block slides along the length direction of the first stop bar. The first slide block is provided with a first connecting part and a second connecting part for connecting the second stop bar. When the second stop bar is connected to the first connecting part, the second stop bar and the first stop bar are perpendicular to each other. When the second stop bar is connected to the second connecting part, the second stop bar and the first stop bar are collinear.

[0008] In the above solution, when the second stop bar is connected to the second connecting part, the connected second stop bar is collinear with the first stop bar, effectively increasing the length of the stop bar. This creates a stop bar with a length greater than or equal to the length of the board. In this state, the auxiliary tool can be used to guide the electric saw during board cutting operations. When the second stop bar is connected to the first connecting part, the connected second stop bar is perpendicular to the first stop bar. In this state, the auxiliary tool can be used to guide the electric saw during corner cutting operations, thus meeting the requirements for board cutting and corner cutting assistance. The connection between the two stop bars is secured by the connecting part, ensuring a stable connection and providing a secure guide for the electric saw, making board cutting more convenient. During the corner cutting operation, the first slide can slide along the length of the first stop, allowing the second stop to move back and forth along the first stop via the first slide. This not only keeps the two stops in a perpendicular position but also allows the position of the second stop to be moved back and forth according to the length of the material to be cut, enabling the cutting of corner pieces of any size. When not in use, the two stops can be disassembled for easy carrying and storage.

[0009] Furthermore, the aforementioned first connecting part is a connecting groove formed on the first slide block. The front and rear side walls of the connecting groove can limit the second stop bar in the front and rear direction, preventing the second stop bar from swinging in the front and rear direction, so that the second stop bar and the first stop bar are fixedly kept in a vertical state.

[0010] Furthermore, the end of the second stop bar is connected to the connecting groove via a connecting block to facilitate the connection between the second stop bar and the connecting groove.

[0011] Furthermore, the aforementioned connecting block includes a block body and an insert plate connected to the block body. The insert plate is placed in the connecting groove, and the insert plate is threadedly connected to the bottom of the connecting groove of the first slide block by screws. The screws ensure the installation stability of the insert plate and the connecting groove. By unscrewing the screws and disengaging them from the bottom of the connecting groove, the insert plate can be disassembled and separated from the connecting groove. The aforementioned block body is located to the right of the first stop bar, and a first guide groove is provided on the bottom of the block body, penetrating its right side. A first guide block is provided at the left end of the upper part of the second stop bar. The first guide block slides within the first guide groove, thereby connecting the second stop bar and the connecting block. By pulling the first guide block of the second stop bar to the right and disengaging it from the first guide groove, the second stop bar can be disassembled and separated from the connecting block.

[0012] Furthermore, the block is also equipped with a clamping screw. Rotating the clamping screw allows the lower end face of the clamping screw to abut against and disengage from the second stop bar. In use, when the lower end face of the clamping screw abuts against the second stop bar, the second stop bar cannot move to the right and disengage from the first guide groove, ensuring the connection stability between the second stop bar and the connecting block. Only when the lower end face of the clamping screw disengages from the second stop bar can the second stop bar be pulled to the right to disengage the first guide block from the first guide groove.

[0013] Furthermore, the aforementioned second connecting part is located at the rear end of the first slide block. When the first slide block slides to the rear end position of the first stop bar, the second connecting part of the first slide block can be connected to the second stop bar, and the cross-section of the second stop bar is the same as that of the first stop bar. At this time, connecting the front end of the second stop bar to the second connecting part located at the rear end of the first slide block is equivalent to the second stop bar and the first stop bar being on the same straight line.

[0014] Furthermore, the aforementioned second connecting portion is a second guide groove formed on the lower side of the first slide and extending through the front and rear sidewalls of the first slide. A second guide block is provided on the first stop bar along its length direction. The second guide block is slidably engaged in the second guide groove, allowing the first slide bar to slide back and forth along the second guide block of the first stop bar through its second guide groove. When the first slide bar is slid to the rear end position of the first stop bar, the rear section of the second guide groove of the first slide bar extends beyond the rear end of the first stop bar. This allows the first guide block of the second stop bar to slide in engagement with the rear section of the second guide groove, thereby connecting the second stop bar and the second connecting portion of the first slide bar.

[0015] Furthermore, the first sliding block is rotatably connected to its front and rear ends, respectively. Rotating the first locking handle allows its hinged end to abut against and disengage from the corresponding stop bar. When the hinged end of the first locking handle abuts against the corresponding stop bar, the first sliding block is locked and cannot slide; when the hinged end of the first locking handle disengages from the corresponding stop bar, the lock is released, allowing the first sliding block to continue sliding.

[0016] Furthermore, a positioning strip is provided below the first stop strip, and a limiting plate is provided above the positioning strip. The positioning strip is perpendicular to the first stop strip. In use, the positioning strip is attached to the front edge of the material to be cut, while the limiting plate and the first stop strip are on the material. At this time, the limiting plate and the first stop strip can restrict the positioning strip from moving downward relative to the material, while the positioning strip can restrict the first stop strip from moving backward relative to the material and also restrict the front end of the first stop strip from swinging left and right, so that the first stop strip is kept perpendicular to the front edge of the material. This makes the fixation of the first stop strip more stable and ensures that the first stop strip is placed flat on the material.

[0017] Furthermore, the aforementioned first stop bar is slidably connected to the positioning bar via a second slide block. The second slide block can slide along the length of the positioning bar, allowing the first stop bar to move left and right along the positioning bar via the second slide block. A third guide groove is provided below the first stop bar, extending through its front and rear sides. A third guide block is provided on the second slide block, slidingly engaging within the third guide groove, thereby connecting the first stop bar and the second slide block. In addition, a second locking handle is provided on the second slide block. Rotating the second locking handle allows its hinged end to abut against and disengage from the side wall of the first stop bar. Specifically, when the hinged end of the second locking handle abuts against the side wall of the first stop bar, the first stop bar is locked, fixing it relative to the second slide block and preventing it from sliding relative to the second slide block. When the hinged end of the second locking handle disengages from the side wall of the first stop bar, the first stop bar can be slid relative to the second slide block or detached from the second slide block.

[0018] This utility model provides a board cutting auxiliary tool that can meet the requirements for board cutting and corner cutting. When in use, the second stop bar is connected to the connecting groove of the first slide through the connecting block, which can be used to assist in corner cutting of the board. When the guide block of the second stop bar is engaged with the rear section of the second guide groove of the first slide, it is equivalent to increasing the length of the stop bar, which can be used to assist in cutting wide boards. The two stop bars are firmly connected and easy to disassemble and assemble. When not in use, the two stop bars can be disassembled and separated for easy carrying and storage. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the plate cutting auxiliary tool of this utility model in the state of connection between the second stop and the first connecting part.

[0020] Figure 2 This is a schematic diagram of the structure of the plate cutting auxiliary tool of this utility model in the state of connection between the second stop and the second connecting part.

[0021] Figure 3 This is a partially exploded structural diagram of the sheet metal cutting auxiliary tool of this utility model.

[0022] Figure 4 This is an enlarged view of part A in section 3.

[0023] Figure 5 This is an exploded view of the first slide of the sheet metal cutting auxiliary tool of this utility model.

[0024] Figure 6 This is an exploded structural diagram of the sheet metal cutting auxiliary tool of this utility model (the structure of the second stop bar and the connecting block is omitted in the figure).

[0025] Figure 7 This is an enlarged view of section B in diagram 6. Detailed Implementation

[0026] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0027] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0028] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0029] Example 1

[0030] like Figure 1 As shown, this embodiment provides a sheet metal cutting auxiliary tool, including a first stop bar 1, a second stop bar 3, and a first slide block 2 slidably connected to the first stop bar 1. The first slide block 2 slides along the length of the first stop bar 1. The first slide block 2 is provided with a first connecting part and a second connecting part for connecting the second stop bar 3. When the second stop bar 3 is connected to the first connecting part, the second stop bar 3 and the first stop bar 1 are perpendicular to each other. In this state, the auxiliary tool can be used to guide and assist the electric saw when cutting the corners of the sheet metal. Figure 2As shown, when the second stop bar 3 is connected to the second connecting part, the second stop bar 3 and the first stop bar 1 are collinear, which is equivalent to increasing the length of the stop bar, so that the second stop bar 3 and the first stop bar 1 form a stop bar with a length greater than or equal to the length of the board. In this state, the auxiliary tool can be used to guide the electric saw when cutting the board, thereby meeting the requirements for corner cutting and board cutting assistance.

[0031] The two stop bars, secured by the connecting part, ensure a stable connection, thus providing a secure guide for the chainsaw and facilitating easier cutting of sheet metal. During corner cutting, the first slide 2 slides along the length of the first stop bar 1, allowing the second stop bar 3 to move back and forth along the first stop bar 1 via the first slide 2. This not only keeps the two stop bars in a vertical position but also allows the second stop bar 3 to be moved back and forth according to the length of the sheet metal to be cut, enabling the cutting of corner pieces of any size. When not in use, the two stop bars can be disassembled for easy carrying and storage.

[0032] Specifically, such as Figure 1 , 3 As shown in Figure 4, the first connecting part is a connecting groove 21 located in the middle of the first slide block 2, and the connecting groove 21 passes through the left and right sides of the first slide block 2. The left end of the second stop bar 3 is connected to the connecting groove 21 through the connecting block 4. The connecting block 4 includes a block body 41 and an insert plate 42 connected to the block body 41. The insert plate 42 is placed in the connecting groove 21. The bottom of the connecting groove 21 has two threaded grooves 211. Two screws 43 pass through the insert plate 42 and are threaded to the corresponding threaded grooves 211 to ensure the connection stability between the insert plate 42 and the connecting groove 21. After the two screws 43 are screwed out of the threaded grooves 211, the insert plate 42 can be disassembled and separated from the connecting groove 21. The aforementioned block 41 is located to the right of the first stop bar 1, and a first guide groove 411 penetrating its right side is provided on the bottom of the block 41. A first guide block 31 is provided on the second stop bar 3 along its length direction. The first guide block 31 is slidably engaged in the first guide groove 411. In use, the first guide block 31 of the second stop bar 3 is inserted into the first guide groove 411 to connect the second stop bar 3 with the connecting block 4. By pulling the first guide block 31 of the second stop bar 3 to the right to disengage it from the first guide groove 411, the second stop bar 3 and the connecting block 4 can be disassembled and separated, making disassembly and assembly convenient.

[0033] For example Figure 3As shown, the block 41 is also provided with a clamping screw 413. Rotating the clamping screw 413 can cause the lower end face of the clamping screw 413 to abut against and disengage from the upper surface of the second stop bar 3. In use, when the lower end face of the clamping screw 413 abuts against the upper surface of the second stop bar 3, the first guide block 31 of the second stop bar 3 cannot move to the right and disengage from the first guide groove 411, thus ensuring the connection stability between the second stop bar 3 and the connecting block 4. Only when the lower end face of the clamping screw 413 disengages from the upper surface of the second stop bar 3 can the second stop bar 3 be pulled to the right to disengage the first guide block 31 from the first guide groove 411.

[0034] When using the sheet metal cutting auxiliary tool in this embodiment, for example... Figure 1 As shown, first connect the second stop bar 3 to the connecting groove 21 via the connecting block 4, so that the second stop bar 3 and the first stop bar 1 are fixed in a perpendicular state. Then, use existing measuring tools such as rulers to measure and mark the length and width of the board to be cut. Then, place the first stop bar 1 vertically on the board at the corresponding width mark position, and then fix the first stop bar 1 with a fixing clamp. Then, move the second stop bar 3 up and down to the length mark position on the board, and then fix the second stop bar 3 with a fixing clamp. Finally, use an electric saw to cut along the right edge of the first stop bar 1 and the front edge of the second stop bar 3 to cut corner pieces on the board, thus completing the corner cutting operation of the board.

[0035] Example 2

[0036] This embodiment is a further improvement on the structure of the plate cutting auxiliary tool in Embodiment 1. The improvement lies in that, as... Figure 2 As shown, the second connecting part is located at the rear end of the first slide block 2. When the first slide block 2 slides to the rear end position of the first stop bar 1, the second connecting part of the first slide block 2 can be connected with the second stop bar 3. The cross-section of the second stop bar 3 is the same as that of the first stop bar 1. At this time, connecting the front end of the second stop bar 3 with the second connecting part located at the rear end of the first slide block 2 is equivalent to the second stop bar 3 and the first stop bar 1 being on the same straight line.

[0037] Specifically, such as Figure 2 , 5As shown, the second connecting part is a second guide groove 22 formed on the lower side of the first slide block 2 and extending through the front and rear sides of the first slide block 2. The cross-section of the second guide groove 22 is the same as that of the first guide groove 411. A second guide block 11 is provided on the first stop bar 1 along its length direction. The second guide block 11 is slidably engaged in the second guide groove 22, so that the first slide block 2 can slide back and forth along the second guide block 11 of the first stop bar 1 through its second guide groove 22. When the first slide block 2 is slid to the rear end position of the first stop bar 1, the rear section of the second guide groove 22 of the first slide block 2 extends out of the rear end of the first stop bar 1. This makes the first guide block 31 of the second stop bar 3 slidably engaged with the rear section of the second guide groove 22, thereby connecting the second stop bar 3 and the second connecting part of the first slide block 2.

[0038] As an improvement to this embodiment, the front and rear ends of the first slide block 2 are respectively rotatably connected to a first locking handle 23, wherein the hinge end of the first locking handle 23 is an eccentric cam structure, and rotating the first locking handle 23 can cause the hinge end of the first locking handle 23 to abut against and disengage from the corresponding stop bar. Figure 1 As shown, when the first slide block 2 is slidably engaged with the first stop bar 1, the hinge ends of one or both of the first locking handles 23 can be rotated to abut against the first stop bar 1, thereby locking the first slide block 2 and preventing it from sliding along the first stop bar 1; and after rotating the hinge ends of both first locking handles 23 to disengage from the first stop bar 1, the lock can be released, allowing the first slide block 2 to continue sliding. Figure 2 As shown, when the first slide block 2 is slidably engaged with the rear end of the first stop bar 1 and the front end of the second stop bar 3, the hinge end of the first locking handle 23 located at the front end can be rotated to abut against the top of the first stop bar 1, and then the hinge end of the first locking handle 23 located at the rear end can be rotated to abut against the top of the second stop bar 3, thus locking the first slide block 2 and preventing it from sliding. This also ensures the connection stability between the second stop bar 3 and the first slide block 2, as well as the connection stability between the second stop bar 3 and the first stop bar 1. When the hinge end of the first locking handle 23 located at the rear end is rotated to disengage from the top of the second stop bar 3, the second stop bar 3 can be pulled to disassemble and separate from the first slide block 2. When the hinge end of the first locking handle 23 located at the front end is rotated to disengage from the top of the first stop bar 1, the first slide block 2 can slide back and forth along the first stop bar 1.

[0039] When using the sheet metal cutting auxiliary tool in this embodiment, such as Figure 2As shown, first insert the guide block of the second stop bar 3 into the inner side of the rear section of the second guide groove 22 of the first slide block 2, and rotate the hinge ends of the two first locking handles 23 to abut against the corresponding stop bars, so as to connect the second stop bar 3 and the first stop bar 1 collinearly. At this time, the total length of the second stop bar 3 and the first stop bar 1 is greater than or equal to the length of the plate to be cut. Then, use a measuring tool to measure the width of the plate to be cut and mark it. Then, place the two connected stop bars longitudinally on the width mark point on the plate, and then fix the two stop bars with a fixing clamp. Finally, use an electric saw to cut along the right edge of the two stop bars to cut and separate the plate, thus completing the plate cutting operation.

[0040] Example 3

[0041] This embodiment is a further improvement on the structure of the plate cutting auxiliary tool in Embodiment 2. The improvement lies in, for example... Figure 6 As shown, a positioning strip 5 is provided below the first stop bar 1, and a limiting plate 51 is provided above the positioning strip 5. The limiting plate 51 is parallel to the first stop bar 1, and the positioning strip 5 is perpendicular to the first stop bar 1. The first stop bar 1 can slide along the length direction of the positioning strip 5. Figure 1 , 2 As shown, in use, the positioning strip 5 is attached to the front edge of the material to be cut, while the limiting plate 51 and the first stop strip 1 are on the material. At this time, the limiting plate 51 and the first stop strip 1 can restrict the positioning strip 5 from moving downward relative to the material, while the positioning strip 5 can restrict the first stop strip 1 from moving backward relative to the material, and can also restrict the front end of the first stop strip 1 from swinging left and right, so that the first stop strip 1 is kept perpendicular to the front edge of the material, thus making the fixation of the first stop strip 1 more stable.

[0042] Specifically, such as Figure 7 As shown, the first stop bar 1 is slidably connected to the positioning bar 5 via the second slide block 6. The second slide block 6 has a fourth guide groove 63 extending through its left and right sides. The positioning bar 5 has a fourth guide block 52 arranged along its length. The fourth guide groove 63 and the fourth guide block 52 are slidably engaged, so that the second slide block 6 can slide left and right along the fourth guide block 52 of the positioning bar 5 via its fourth guide groove 63, thereby allowing the first stop bar 1 to move left and right along the positioning bar 5 via the second slide block 6.

[0043] The first stop bar 1, the second stop bar 3, and the positioning bar 5 are respectively provided with scales along their length to facilitate accurate adjustment of the positions of the first stop bar 1 and the second stop bar 3. This makes it easy to position the cutting position of the board without the need for additional measuring tools, making it more convenient to use.

[0044] In addition, for example Figure 6As shown, the limiting plate 51 is provided with a third slide block 511 below it. The third slide block 511 is provided with a fifth guide groove 512 that runs through its left and right sides. The fifth guide groove 512 is slidably engaged with the fourth guide block 52. The third slide block 511 can slide left and right along the fourth guide block 52 of the positioning strip 5 through its fifth guide groove 512, so that the limiting plate 51 can slide left and right along the positioning strip 5 through the third slide block 511, thereby adjusting the left and right position of the limiting plate 51.

[0045] For example Figure 7 As shown, the first stop bar 1 has a third guide groove 12 extending through its front and rear sides. The second slide block 6 has a third guide block 61 on its top. The third guide block 61 slides in conjunction with the third guide groove 12, thereby connecting the first stop bar 1 and the second slide block 6, and allowing the first stop bar 1 to slide back and forth along the third guide block 61 of the second slide block 6 through its third guide groove 12. Furthermore, a second locking handle 62 is rotatably connected to the second slide block 6 at the left side position corresponding to the first stop bar 1. The hinge end of the second locking handle 62 is an eccentric cam structure. When the hinge end of the second locking handle 62 is rotated to abut against the left side wall of the first stop bar 1, the first stop bar 1 can be locked, making the first stop bar 1 and the second slide block 2 relatively fixed, ensuring that the first stop bar 1 will not slide relative to the second slide block 2. When the hinge end of the second locking handle 62 is rotated to disengage from the left side wall of the first stop bar 1, the first stop bar 1 can be slid relative to the second slide block 2 and the first stop bar 1 can be detached from the second slide block 2.

[0046] As an improvement to this embodiment, such as Figure 4 , 7 As shown, all the guide grooves have grooves 81 on their opposite side walls, and all the guide blocks have protrusions 82 on their opposite side walls. When the guide block slides into the guide groove, the protrusions 82 are placed in the grooves 81, so that the grooves 81 can block the protrusions 82 from moving downward, thus preventing the guide block from falling out of the guide groove and ensuring the stability of the fit between each guide block and the corresponding guide groove.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tool for cutting sheet metal, characterized in that: It includes a first stop bar (1), a second stop bar (3), and a first slide block (2) slidably connected to the first stop bar (1). The first slide block (2) slides along the length direction of the first stop bar (1). The first slide block (2) is provided with a first connecting part and a second connecting part for connecting the second stop bar (3). When the second stop bar (3) is connected to the first connecting part, the second stop bar (3) and the first stop bar (1) are perpendicular to each other. When the second stop bar (3) is connected to the second connecting part, the second stop bar (3) and the first stop bar (1) are collinear.

2. The sheet metal cutting auxiliary tool according to claim 1, characterized in that: The first connecting part is a connecting groove (21) opened on the first slide (2).

3. The sheet metal cutting auxiliary tool according to claim 2, characterized in that: The end of the second stop bar (3) is connected to the connecting groove (21) via the connecting block (4).

4. The sheet metal cutting auxiliary tool according to claim 3, characterized in that: The connecting block (4) includes a block (41) and an insert plate (42) connected to the block (41). The insert plate (42) is placed in the connecting groove (21), and the insert plate (42) is threaded to the bottom of the connecting groove (21) of the first slide (2) by screws (43). The block (41) is located on the side of the first stop (1), and a first guide groove (411) is provided on the bottom of the block (41) that passes through its side. A first guide block (31) is provided at the upper end of the second stop (3), and the first guide block (31) is slidably fitted in the first guide groove (411).

5. The sheet metal cutting auxiliary tool according to claim 4, characterized in that: The block (41) is also provided with a clamping screw (413). Rotating the clamping screw (413) can cause the lower end face of the clamping screw (413) to abut against and disengage from the second stop bar (3).

6. The sheet metal cutting auxiliary tool according to claim 1, characterized in that: The second connecting part is located at the end of the first slide (2). When the first slide (2) slides to the end of the first stop (1), the second connecting part of the first slide (2) can be connected with the second stop (3), and the second stop (3) has the same cross-section as the first stop (1).

7. The sheet metal cutting auxiliary tool according to claim 6, characterized in that: The second connecting part is a second guide groove (22) opened on the lower side of the first slide (2) and passing through the front and rear side walls of the first slide (2). A second guide block (11) is provided on the first stop bar (1) along its length direction. The second guide block (11) is slidably fitted in the second guide groove (22).

8. The sheet metal cutting auxiliary tool according to claim 7, characterized in that: The first slide (2) is rotatably connected to the front and rear ends of the first locking handle (23). Rotating the first locking handle (23) can cause the hinge end of the first locking handle (23) to abut against and disengage from the corresponding stop bar.

9. The sheet metal cutting auxiliary tool according to any one of claims 1-8, characterized in that: The first stop bar (1) is provided with a positioning bar (5) below it, and a limiting plate (51) is provided on the positioning bar (5) above it. The positioning bar (5) is perpendicular to the first stop bar (1).

10. The sheet metal cutting auxiliary tool according to claim 9, characterized in that: The first stop bar (1) is slidably connected to the positioning bar (5) through the second slide (6). The second slide (6) can slide along the length of the positioning bar (5). The first stop bar (1) has a third guide groove (12) that runs through its front and rear sides. The second slide (6) has a third guide block (61) on top. The third guide block (61) is slidably fitted in the third guide groove (12). The second slide (6) also has a second locking handle (62). Rotating the second locking handle (62) can cause the hinge end of the second locking handle (62) to abut against and disengage from the side wall of the first stop bar (1).

Images