Leaning grid mounting structure of electric cutting tool

Abstract

The utility model discloses a leaning grid installation structure of an electric cutting tool, which comprises a cutting tool body, the cutting tool body comprises a base, an extension table, a fixed leaning grid and a movable leaning grid, the extension table is arranged on the end side of the base, the fixed leaning grid is arranged on the base, and the movable leaning grid is arranged on the base. And the cutting tool body is provided with a first mounting position and a second mounting position for mounting the movable leaning grid. The movable leaning grid can be selectively installed at the first installation position and the second installation position of the cutting tool body so as to achieve different functions: when the movable leaning grid is installed at the first installation position, the movable leaning grid is connected to the fixed leaning grid and used as a leaning grid, the overall height of the leaning grid is increased, and it is guaranteed that a workpiece is stable during cutting; and when the movable leaning grid is mounted at the second mounting position, the movable leaning grid is connected between the base and the extension table, so that the base, the movable leaning grid and the extension table are matched to form a working surface for supporting the workpiece, the width of the working surface is increased by the movable leaning grid, and reliable support is provided for the wider workpiece.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric tool technical field, especially electric cutting tool's lean fence mounting structure. BACKGROUND

[0002] Miter saw as a kind of cutting tool, it is widely used in metal, non-metal material and other workpiece cutting, it is simple to operate, and it is convenient to use and carry.Usually, lean fence (leaning mountain) structure is arranged on the workbench of miter saw, when cutting workpiece, it plays the role of stable and determining cutting angle.

[0003] For example, a kind of movable leaning mountain device of miter saw is disclosed in Chinese utility model patent (publication number: CN201669470U), including workbench and the fixed leaning mountain installed on workbench, movable movable leaning mountain is connected on fixed leaning mountain, long slot is provided on movable leaning mountain, long slot and the positioning hole on fixed leaning mountain are connected by locking piece.It can be conveniently, quickly and effectively moved to the corresponding position of fixed leaning mountain according to the angle of different cutting workpieces of machine head, at the same time, it meets the needs of different workpiece height and length supported by leaning mountain, more greatly improves the structure height and length size range of workpiece that can be cut, improves the flexibility of adjustment operation, better improves the stability of supported workpiece, and it is convenient to effectively cut longer workpiece.But the width of workbench is fixed value, when cutting wider workpiece, workbench cannot provide reliable and stable support for workpiece, when cutting workpiece, danger is prone to occur.

[0004] For example, a kind of miter saw with extension table is disclosed in Chinese invention patent (publication number: CN103286378A), including base, workbench, lean fence, swing arm, motor, cutting assembly and extension table, the extension table is movably connected with the base through extension table guide rod, the extension table is provided with workpiece limiting block, the workpiece limiting block is set up and can be turned up or down to the upper surface of the extension table along the workpiece length positioning direction.It can lock the extension table, and the workpiece limiting block arranged on the extension table is convenient to turn over, and it is convenient to cut to length.But the width of workbench and extension table is fixed value, when cutting wider workpiece, workbench and extension table cannot provide reliable and stable support for workpiece, when cutting workpiece, danger is prone to occur.

[0005] Therefore, it is necessary to improve the prior art. UTILITY MODEL CONTENTS

[0006] The utility model discloses a kind of lean fence mounting structures of electric cutting tool, to solve the problem that the width of workbench and extension table in prior art is fixed value, when cutting wider workpiece, workbench and extension table cannot provide reliable and stable support for workpiece, when cutting workpiece, danger is prone to occur.

[0007] To achieve the above object, the utility model adopts the following technical scheme:

[0008] A kind of backrest mounting structure of electric cutting tool, including cutting tool body, the cutting tool body includes base, extension table, fixed backrest and movable backrest, the extension table is set to the end side of the base, the fixed backrest is set to the base, the cutting tool body is provided with the first installation position and second installation position for the installation of movable backrest;When the movable backrest is installed in first installation position, the movable backrest is connected to fixed backrest, as backrest use;When the movable backrest is installed in second installation position, the movable backrest is connected between base and extension table, so that base, movable backrest and extension table cooperate to form the working surface for supporting workpiece.

[0009] Further, the base is provided with workpiece support table, when the movable backrest is installed in second installation position, the end of the movable backrest protrudes from the end of the extension table and the end of the workpiece support table, to increase the width of working surface.

[0010] Further, the cutting tool body further includes workbench, the upper surface of the workpiece support table is workpiece support surface, when the movable backrest is installed in second installation position, the upper surface of the movable backrest, the upper surface of the extension table, the workpiece support surface of the workpiece support table and the upper surface of workbench are in the same plane.

[0011] Further, the fixed backrest is provided with first slot, and the movable backrest is provided with plug-in part matched with the first slot.

[0012] Further, the inner side wall of the first slot is provided with protruding block, and the plug-in part is provided with sliding edge matched with the protruding block.

[0013] Further, locking bolt is arranged between the movable backrest and the fixed backrest, and the fixed backrest is provided with a plurality of threaded holes for mounting the locking bolt along the length direction of the fixed backrest.

[0014] Further, the side of the extension table close to the base is provided with second slot, when the movable backrest is installed in second installation position, the plug-in part is inserted into the second slot, and the end of the movable backrest away from the plug-in part is arranged on the side of the base.

[0015] Further, the extension table and the base are movably connected through guide rod, the first end of the guide rod is fixedly connected with the extension table, and the second end of the guide rod is movably connected with the base.

[0016] Further, a locking wrench is arranged between the second end of the guide rod and the base to lock the guide rod.

[0017] Further, a pressing assembly for fixing a workpiece is arranged on the base.

[0018] With the above structure, the utility model has the beneficial effects that:

[0019] (1) The utility model discloses a kind of backrest mounting structures of electric cutting tool, including cutting tool body, the cutting tool body includes base, extension table, fixed backrest and movable backrest, the extension table is set in the end side of the base, the fixed backrest is set on the base, the cutting tool body is provided with the first installation position and second installation position for the installation of movable backrest.The movable backrest of the utility model can be selectively installed in the first installation position and the second installation position of cutting tool body, to realize different functions: when movable backrest is installed in the first installation position, movable backrest is connected to fixed backrest, and is used as backrest, at this time, the overall height of backrest is increased, guaranteeing that workpiece is stable when cutting;When movable backrest is installed in the second installation position, movable backrest is connected between base and extension table, so that base, movable backrest and extension table cooperate to form working surface for supporting workpiece, at this time, movable backrest increases the width of working surface, provides reliable support for wider workpiece, work is safe and stable, with higher practical value;Meanwhile movable backrest fills the gap between extension table and base, reduces the vibration generated when workpiece is cut, and improves processing accuracy.

[0020] (2) The utility model discloses a kind of backrest mounting structures of electric cutting tool, locking bolt is arranged between the movable backrest and the fixed backrest, the fixed backrest is provided with a plurality of screw holes for installing locking bolt along its length direction.By locking cooperation of locking bolt and different screw holes, the installation position of movable backrest on fixed backrest can be adjusted, and then the overall length of backrest can be adjusted, different length workpiece can be provided with abutting, better improve the stability of supported workpiece, facilitate effective cutting workpiece of different lengths.And adjusting structure is simple, the moving connection locking operation of movable backrest and fixed backrest is simple, easy, more flexible for different length workpiece to provide reliable, stable cutting support, more greatly improve the type of workpiece that can be cut. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiment of the utility model, the drawings needed in the following specific embodiment description will be briefly introduced, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0022] Figure 1 is the overall structure schematic of the utility model Figure 1 (the movable backrest is installed in the first installation position);

[0023] Figure 2 is the overall structure cross section of the utility model Figure 1 (the movable backrest is installed in the first installation position);

[0024] Figure 3 is the of the utility model Figure 2 structure enlarged schematic view of A place;

[0025] Figure 4 is the overall structure schematic of the utility model Figure 2 (the movable backrest is installed in the second installation position);

[0026] Figure 5 is the overall structure cross section of the utility model Figure 2 (the movable backrest is installed in the second installation position);

[0027] Figure 6 is the three-dimensional schematic view of the movable backrest of the utility model;

[0028] Figure 7 is the three-dimensional schematic view of the fixed backrest of the utility model;

[0029] Figure 8 is the three-dimensional schematic view of the extension table of the utility model.

[0030] Figures 1 to 8 Reference numerals are:

[0031] 1, base; 11, workpiece support table; 12, step portion; 2, workbench; 3, fixed backrest; 31, first slot; 311, protruding block; 32, locking bolt; 33, threaded hole; 4, extension table; 41, second slot; 42, guide rod; 43, limiting piece; 5, movable backrest; 51, insertion portion; 511, sliding edge; 52, abutting portion; 521, first abutting step; 522, second abutting step; 6, locking wrench; 7, pressing assembly. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent, obvious and easy to understand, the specific embodiments of the utility model are described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the following disclosed specific embodiments.

[0033] In the description of the utility model, it needs to understand that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model indicated or implied that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0034] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In the description of the utility model, if the term "multiple" appears, the meaning of the term "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0035] In the utility model, unless otherwise specifically defined and limited, if the terms "mounting", "connection", "connection", "fixing" appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] In the utility model, unless otherwise specifically defined and limited, if there is a similar description of the first feature "on" or "under" the second feature, the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.

[0038] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] like Figures 1 to 8 As shown, an electric cutting tool's mounting structure includes a cutting tool body, which comprises a base 1, an extension platform 4, a fixed support 3, and a movable support 5. The extension platform 4 is disposed on the end side of the base 1, and the fixed support 3 is disposed on the base 1. The cutting tool body has a first mounting position and a second mounting position for mounting the movable support 5. When the movable support 5 is installed in the first mounting position, it is connected to the fixed support 3 and used as a support. When the movable support 5 is installed in the second mounting position, it connects the base 1 and the extension platform 4, so that the base 1, the movable support 5, and the extension platform 4 cooperate to form a working surface for supporting the workpiece. A workpiece support platform 11 is provided on the base 1. When the movable support 5 is installed in the second mounting position, the end of the movable support 5 protrudes beyond the end of the extension platform 4 and the end of the workpiece support platform 11 to increase the width of the working surface.

[0040] Based on the above embodiment, the utility model wants to solve is provide a kind of electric cutting tool's backrest mounting structure, including cutting tool body, the cutting tool body includes base 1, extension platform 4, fixed backrest 3 and movable backrest 5, the extension platform 4 is set in the end side of the base 1, the fixed backrest 3 is set on the base 1, the cutting tool body is provided with the first installation position and second installation position for movable backrest 5 installation.The movable backrest 5 of the utility model can be selectively installed in the first installation position and second installation position of cutting tool body, to realize different functions: when movable backrest 5 is installed in the first installation position, movable backrest 5 is connected to fixed backrest 3, and is used as backrest, at this time, the overall height of backrest is increased, and the stability of workpiece is ensured when cutting;When movable backrest 5 is installed in the second installation position, movable backrest 5 is connected between base 1 and extension platform 4, so that base 1, movable backrest 5 and extension platform 4 cooperate to form a working surface for supporting workpiece, at this time, the length direction of movable backrest 5 is perpendicular to the length direction of fixed backrest 3, movable backrest 5 increases the width of working surface, provides reliable support for wider workpiece, work is safe and stable, and has higher practical value;Meanwhile, movable backrest 5 fills the gap between extension platform 4 and base 1, reduces the vibration generated when workpiece is cut, and improves processing accuracy.

[0041] As another preferred scheme of the utility model, the cutting tool body further includes a workbench 2, and an upper surface of the workpiece support platform 11 is a workpiece support surface; when the movable backrest 5 is installed in the second installation position, the upper surface of the movable backrest 5, the upper surface of the extension platform 4, the workpiece support surface of the workpiece support platform 11 and the upper surface of the workbench 2 are in the same plane. Figure 3 As shown in the figure, this structure design makes the workpiece placed on the working surface more stable, and cutting is safer.

[0042] As another preferred scheme of the utility model, the fixed backrest 3 is provided with a first slot 31, and the movable backrest 5 is provided with a plug-in part 51 matched with the first slot 31. Figure 3 Figure 5 and Figure 6 ​As shown, when the movable support 5 needs to be installed in the first installation position, the insertion part 51 of the movable support 5 is inserted into the first strip groove 31. The limiting cooperation between the protrusion 311 and the sliding edge 511 prevents the movable support 5 from detaching from the fixed support 3. In a further embodiment, the movable support 5 includes an abutment part 52. The abutment part 52 has a first abutment step 521 and a second abutment step 522 at one end near the insertion part 51. The first abutment step 521 and the second abutment step 522 abut against the upper surface of the fixed support 3, reducing the wobbling of the movable support 5 and providing stable and reliable support for the workpiece.

[0043] In another preferred embodiment of this utility model, a locking bolt 32 is provided between the movable support 5 and the fixed support 3, and the fixed support 3 has a plurality of threaded holes 33 along its length for installing the locking bolt 32. The extension platform 4 and the base 1 are movably connected by a guide rod 42, the first end of the guide rod 42 being fixedly connected to the extension platform 4, and the second end of the guide rod 42 being movably connected to the base 1. A locking wrench 6 is provided between the second end of the guide rod 42 and the base 1, and the guide rod 42 is locked by the locking wrench 6. In this embodiment, as... Figure 1 , Figure 5 and Figure 6 As shown, by locking the locking bolt 32 with different threaded holes 33, the installation position of the movable support 5 on the fixed support 3 can be adjusted, thereby adjusting the overall length of the support. This allows for support of workpieces of different lengths, improving workpiece stability and facilitating effective cutting of workpieces of varying lengths. The adjustment structure is simple, and the moving connection and locking operation between the movable support 5 and the fixed support 3 is simple and easy, providing more flexible and reliable cutting support for workpieces of different lengths, and expanding the range of workpieces that can be cut. When cutting longer workpieces, the movable support 5 is stretched outward relative to the fixed support 3, and the locking bolt 32 locks with the threaded hole 33 on the outer side, fixing the movable support 5 to the fixed support 3. At this time, the extension table 4 is stretched outward, and the distance between the extension table 4 and the base 1 can be adjusted via the guide rod 42. The extension table 4 is pulled to a suitable position, and the locking wrench 6 is moved to the locking position, fixing the distance between the extension table 4 and the base 1. In a further embodiment, the extension table 4 is rotatably provided with a limiting member 43, which is used to limit the end of the workpiece to facilitate the cutting of the workpiece to a fixed length.

[0044] As another preferred scheme of the utility model, the side of the extension table 4 close to the base 1 is provided with a second strip-shaped groove 41, when the movable backrest 5 is installed at the second installation position, the plug-in part 51 is inserted into the second strip-shaped groove 41, and the end of the movable backrest 5 away from the plug-in part 51 is placed on the side of the base 1. The side of the base 1 close to the extension table 4 is provided with a step part 12 for placing the extension table 4. In the embodiment, as shown in Figure 4 and Figure 5 When it is needed to install the movable backrest 5 at the second installation position, the plug-in part 51 of the movable backrest 5 is inserted into the second strip-shaped groove 41, the extension table 4 and the movable backrest 5 are moved towards the base 1, and are moved to the state that the end of the movable backrest 5 is placed on the step part 12 of the base 1, then the locking wrench 6 is turned to the locking position, so that the extension table 4 is always in the state of clamping the movable backrest 5.

[0045] As another preferred scheme of the utility model, the base 1 is provided with a pressing assembly 7 for fixing the workpiece. In the embodiment, as shown in Figure 1 and Figure 2 The setting of the pressing assembly 7 can improve the stability of the workpiece, when the workpiece is placed at the appropriate position, the workpiece is pressed by the pressing assembly 7, so that the movement of the workpiece during the cutting process is avoided.

[0046] Obviously, the above embodiment is only an example for clearly illustrating, and does not limit the implementation. For ordinary skilled in the art, on the basis of the above description, other different forms of changes or variations can also be made. Here, all the implementation is not needed and cannot be exhausted. The obvious changes or variations derived from the protection scope of the utility model.

Claims

1. A guard mounting structure of an electric cutting tool, comprising a cutting tool body including a base (1), an extension table (4), a fixed guard (3) and a movable guard (5), the extension table (4) being provided at an end side of the base (1), the fixed guard (3) being provided on the base (1), characterized in that: The cutting tool body is provided with a first mounting position and a second mounting position for mounting the movable backstop (5); when the movable backstop (5) is mounted at the first mounting position, the movable backstop (5) is connected to the fixed backstop (3) and used as a backstop; when the movable backstop (5) is mounted at the second mounting position, the movable backstop (5) is connected between the base (1) and the extension table (4), so that the base (1), the movable backstop (5) and the extension table (4) cooperate to form a work surface for supporting a workpiece.

2. The guard mounting structure of an electric power cutting tool according to claim 1, characterized by: The base (1) is provided with a workpiece support table (11), and when the movable backstop (5) is mounted at the second mounting position, the end of the movable backstop (5) protrudes from the end of the extension table (4) and the end of the workpiece support table (11) to increase the width of the work surface.

3. The guard mounting structure of an electric power cutting tool according to claim 2, characterized in that: The cutting tool body further comprises a workbench (2), and the upper surface of the workpiece support table (11) is a workpiece support surface; when the movable backstop (5) is mounted at the second mounting position, the upper surface of the movable backstop (5), the upper surface of the extension table (4), the workpiece support surface of the workpiece support table (11) and the upper surface of the workbench (2) are in the same plane.

4. The guard mounting structure of an electric power cutting tool according to claim 1, characterized in that: The fixed backstop (3) is provided with a first slot (31), and the movable backstop (5) is provided with a plug-in part (51) matched with the first slot (31).

5. The guard mounting structure of an electric power cutting tool according to claim 4, characterized in that: The inner side wall of the first slot (31) is provided with a protrusion (311), and the plug-in part (51) is provided with a sliding edge (511) matched with the protrusion (311).

6. The guard mounting structure of an electric power cutting tool according to claim 1 or 4, characterized by: A locking bolt (32) is arranged between the movable backstop (5) and the fixed backstop (3), and the fixed backstop (3) is provided with a plurality of threaded holes (33) for mounting the locking bolt (32) along the length direction of the fixed backstop (3).

7. The guard mounting structure of an electric power cutting tool according to claim 4, characterized in that: The side of the extension table (4) close to the base (1) is provided with a second slot (41), and when the movable backstop (5) is mounted at the second mounting position, the plug-in part (51) is inserted into the second slot (41), and the end of the movable backstop (5) away from the plug-in part (51) is arranged on the side of the base (1).

8. The guard mounting structure of an electric power cutting tool according to claim 1, characterized by: The extension table (4) and the base (1) are movably connected through a guide rod (42), the first end of the guide rod (42) is fixedly connected with the extension table (4), and the second end of the guide rod (42) is movably connected with the base (1).

9. The guard mounting structure of an electric power cutting tool according to claim 8, characterized in that: A locking wrench (6) is arranged between the second end of the guide rod (42) and the base (1), and the guide rod (42) is locked through the locking wrench (6).

10. The guard mounting structure of an electric power cutting tool according to claim 1, characterized by: The base (1) is provided with a pressing assembly (7) for fixing a workpiece.

Images