Oblique cutting angle adjusting mechanism of circular saw

Abstract

The utility model discloses a circular saw beveling angle adjusting mechanism, and particularly relates to the technical field of angle adjustment, the circular saw beveling angle adjusting mechanism mainly comprises a concave sleeve plate, a rotating shaft and an angle rotating block, the rotating shaft is rotatably connected in the concave sleeve plate, the angle rotating block is fixed at one end part of the rotating shaft, and an extension angle adjusting mechanism is arranged on the upper surface of the angle rotating block; the extension angle adjusting mechanism comprises a sleeve plate fixedly arranged on the upper surface of the angle rotating block, one side of the inner wall of the sleeve plate is fixedly connected with a sleeving block, the inner wall of the sleeving block is slidably connected with a supporting rod, and the supporting rod is fixedly connected with the angle rotating block. The extension angle adjusting mechanism is adopted, a rotating motor drives a rotating shaft to rotate, meanwhile, the rotating shaft drives an angle rotating block to enable a supporting rod to rotate, an electric cylinder is started to push a sleeve plate to move upwards, the sleeve plate drives a sleeving block to move upwards, the sleeve plate can drive a sliding rod to enable an arc-shaped groove plate to slide upwards in a guiding mode, and the circular saw can be subjected to extension adjustment at different angles and different positions; and the adjustment is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of angle adjustment, and more specifically, to a bevel angle adjustment mechanism for a circular saw. Background Art

[0002] The main purpose of a circular saw's bevel angle adjustment mechanism is to enable the saw's bevel cutting function, meaning it can adjust the cutting angle to suit the user's needs. By adjusting the bevel angle, the saw can adapt to different materials and cutting angles, thus avoiding the limitations and inconveniences of traditional right-angle cutting. This not only saves cutting time but also improves overall work efficiency.

[0003] A search of existing published technical literature revealed that Chinese Patent Publication No. CN1714973A discloses a miter saw with an angle adjustment mechanism. This technology primarily comprises a base, a turntable, a support portion extending from the turntable, and a circular saw unit supported by the support portion. The adjustment mechanism is positioned between the base and the turntable, and is used to finely adjust the turntable's rotation angle relative to the base. The adjustment mechanism is located on the front side of the turntable, and a digital display is positioned near the adjustment mechanism to display the rotation angle. However, this technology suffers from the following drawbacks:

[0004] During the process of adjusting the bevel angle of a circular saw, since there will be an offset angle when the circular saw is beveled, it is difficult to adjust the length according to the offset angle of the circular saw bevel. This makes it more time-consuming and labor-intensive to adjust the length extension, and it is difficult to efficiently adjust the bevel angle of the circular saw. For this purpose, a circular saw bevel angle adjustment mechanism is provided. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides the following technical solutions: a bevel angle adjustment mechanism of a circular saw, comprising a concave sleeve, a rotating shaft and an angle rotating block, the rotating shaft is rotatably connected to the inside of the concave sleeve, the angle rotating block is fixed at one end of the rotating shaft, and the upper surface of the angle rotating block is provided with an extended angle adjustment mechanism; the extended angle adjustment mechanism comprises a sleeve plate fixedly arranged on the upper surface of the angle rotating block, and a sleeve block is fixedly connected to one side of the inner wall of the sleeve plate, the inner wall of the sleeve block is slidably connected to a support rod, and the support rod is fixedly connected to the angle rotating block; an electric cylinder is fixedly installed on the top end of the inner wall of the sleeve plate, and a support block is fixedly installed on the bottom end of the electric cylinder, one side of the support block is fixedly connected to a linkage roller, and the linkage roller is rotatably connected to the concave sleeve plate; a sliding rod is fixedly installed on one side of the sleeve plate, and the outer wall of the sliding rod is slidably connected to an arc groove plate.

[0006] Preferably, the vertical cross-section of the sleeve is concave, and the outer wall of the support rod and the inner wall of the sleeve block are both smooth surfaces; the cross-section of the support rod is circular, the outer wall of the slide rod and the inner wall of the arc-shaped groove plate are both smooth surfaces, the vertical cross-section of the slide rod is circular, a rotating motor is fixedly installed at one end of the rotating shaft, a bracket is provided on the lower surface of the rotating motor, the bracket is used to support the rotating motor, and the rotating motor and the concave sleeve are fixedly connected to the bracket, and both sides of the arc-shaped groove plate are slidably connected to limit rings, and the two limit rings are symmetrically arranged about the arc-shaped groove plate.

[0007] In this technical solution, the bottom of the circular saw is fixed to the upper surface of the sleeve plate by bolts, the bracket supports the rotating motor, the rotating motor drives the rotating shaft to rotate, and at the same time the rotating shaft drives the angle rotating block to rotate the support rod, the sleeve block drives the sleeve plate to rotate the electric cylinder, the sliding rod guides the two limit rings to rotate and slide on the arc groove plate, and the electric cylinder drives the support block to rotate.

[0008] Then start the electric cylinder to push the sleeve plate up, the sleeve plate drives the sleeve block to move up, the sleeve block slides up along the outer wall guide of the support rod, so that the sleeve plate can drive the slide rod to guide the arc groove plate to slide up, and the arc groove plate drives the sleeve frame to move up.

[0009] Preferably, a guide assembly is provided at the bottom end of the arc-shaped trough plate; the guide assembly includes a sleeve frame fixedly arranged at the bottom end of the arc-shaped trough plate, and the inner wall of the sleeve frame is provided with a slidably connected guide rod, one side of the guide rod is provided with a connecting block fixedly connected to the sleeve frame, and one side of the connecting block is fixedly connected to an extrusion electric cylinder; the output end of the extrusion electric cylinder is fixedly connected to a pressure block, and the pressure block is used to extrude the concave sleeve plate, the bottom end of the guide rod is fixedly connected to a support block, and the support block and the concave sleeve plate are fixedly connected, the top cross-sectional area of ​​the guide rod is larger than the bottom cross-sectional area of ​​the guide rod, and the outer wall of the guide rod and the inner wall of the sleeve frame are both smooth surfaces.

[0010] In this technical solution, the upward movement of the arc trough plate will drive the sleeve frame to move upward, the extrusion electric cylinder drives the pressure block to move upward, and the sleeve frame slides upward along the outer wall of the guide rod at the same time, and the support block supports the guide rod, so as to ensure that the arc trough plate moves along the specified vertical position.

[0011] The technical effects and advantages of this utility model are:

[0012] 1. The utility model discloses a lengthening angle adjusting mechanism, and the rotating shaft can rotate in the concave sleeve plate, and the rotating shaft drives the angle rotating block to make the supporting rod rotate, the slide rod makes two limit rings rotate and slide on the arc groove plate, and the sleeve plate drives the sleeve joint block to move up, and the sleeve plate can drive the slide rod to slide up along the arc groove plate, so that the circular saw can be adjusted in different positions at different angles, and the adjustment is more convenient.

[0013] 2. The utility model discloses a guide assembly, and the arc groove plate moves up to drive the sleeve joint frame to move up, the sleeve joint frame makes the connecting block move up, the extrusion cylinder drives the pressing block to move up, and the sleeve joint frame slides up along the outer wall of the guide rod, so that the arc groove plate can move along the specified vertical position, and the arc groove plate stably moves and lengthens. DRAWINGS

[0014] Figure 1 It is the overall structure schematic diagram of the circular saw beveling angle adjusting mechanism of the utility model.

[0015] Figure 2 It is the truncated partial structure schematic diagram of the sleeve plate and sleeve joint block connection of the utility model.

[0016] Figure 3 It is the bottom structure schematic diagram of the circular saw beveling angle adjusting mechanism of the utility model.

[0017] Figure 4 It is the truncated partial structure schematic diagram of the arc groove plate and sleeve joint frame connection of the utility model.

[0018] Figure 5 It is the truncated partial structure schematic diagram of the sleeve joint frame and connecting block connection of the utility model.

[0019] The figure mark is: 1, concave sleeve plate, 2, rotating shaft, 3, angle rotating block, 4, supporting rod, 5, sleeve joint block, 6, sleeve plate, 7, electric cylinder, 8, supporting block, 9, linkage roller, 10, slide rod, 11, arc groove plate, 12, rotating motor, 13, support, 14, limit ring, 15, sleeve joint frame, 16, connecting block, 17, extrusion cylinder, 18, pressing block, 19, guide rod, 20, supporting block. DETAILED DESCRIPTION

[0020] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0021] As the drawings Figure 1-5 The extension angle adjusting mechanism is provided on the circular saw beveling angle adjusting mechanism. The extension angle adjusting mechanism can drive the electric cylinder 7 to push the sleeve plate 6 to move upwards, the sleeve plate 6 drives the sleeve joint block 5 to move upwards, the sleeve plate 6 can drive the sliding rod 10 to make the arc-shaped groove plate 11 slide upwards, the circular saw can be adjusted at different positions at different angles, and the adjustment is more convenient. The specific structure of the extension angle adjusting mechanism is as follows.

[0022] In the embodiment, as shown in the accompanying drawings, Figure 1-3 The rotating shaft 2 is rotationally connected in the concave sleeve plate 1, the angle rotating block 3 is fixed at one end of the rotating shaft 2, and the upper surface of the angle rotating block 3 is provided with an extension angle adjusting mechanism. The extension angle adjusting mechanism comprises a sleeve plate 6 fixedly arranged on the upper surface of the angle rotating block 3, and the inner wall of the sleeve plate 6 is fixedly connected with a sleeve joint block 5 on one side. The inner wall of the sleeve joint block 5 is slidably connected with a supporting rod 4, and the supporting rod 4 is fixedly connected with the angle rotating block 3. The inner wall top end of the sleeve plate 6 is fixedly installed with an electric cylinder 7, and the bottom end of the electric cylinder 7 is fixedly installed with a supporting block 8. One side of the supporting block 8 is fixedly connected with a linkage roller 9, and the linkage roller 9 is rotationally connected with the concave sleeve plate 1.

[0023] One side of the sleeve plate 6 is fixedly installed with a sliding rod 10, and the outer wall of the sliding rod 10 is slidably connected with an arc-shaped groove plate 11.

[0024] In the embodiment, as shown in the accompanying drawings, Figure 1-3 One end of the rotating shaft 2 is fixedly installed with a rotating motor 12, and the lower surface of the rotating motor 12 is provided with a support 13 for supporting the rotating motor 12. The rotating motor 12 and the concave sleeve plate 1 are both fixedly connected with the support 13, so that the support 13 supports the rotating motor 12, and the rotating motor 12 drives the rotating shaft 2 to rotate, thereby realizing stable rotation of the rotating shaft 2. In the embodiment, as shown in the accompanying drawings, the two sides of the arc-shaped groove plate 11 are both slidably connected with a limiting ring 14, and the two limiting rings 14 are symmetrically arranged about the arc-shaped groove plate 11, so that the sliding rod 10 can make the two limiting rings 14 rotationally slide on the arc-shaped groove plate 11, and the two limiting rings 14 limit the sliding.

[0025] When the circular saw beveling angle adjusting mechanism is used, the bottom of the circular saw is first fixed on the upper surface of the sleeve plate 6 by bolts, the concave sleeve plate 1 supports the support 13, the support 13 supports the rotating motor 12, the rotating motor 12 drives the rotating shaft 2 to rotate, the rotating shaft 2 can rotate in the concave sleeve plate 1, the rotating shaft 2 drives the angle rotating block 3 to rotate, the supporting rod 4 drives the sleeve joint block 5 to rotate, the sleeve joint block 5 drives the sleeve plate 6 to rotate, the sleeve plate 6 can drive the sliding rod 10 to rotate, the sliding rod 10 makes the two limiting rings 14 rotationally slide on the arc-shaped groove plate 11, and realizes positioning sliding operation. The electric cylinder 7 drives the supporting block 8 to rotate, and the supporting block 8 drives the linkage roller 9 to rotate in the concave sleeve plate 1.

[0026] Then start the electric cylinder 7 to push the sleeve plate 6 up, the sleeve plate 6 drives the sleeve block 5 to move up, and the sleeve block 5 slides up along the outer wall guide of the support rod 4, so that the sleeve plate 6 can drive the slide rod 10 to guide the arc groove plate 11 to slide up, and the arc groove plate 11 drives the sleeve frame 15 to move up.

[0027] In this embodiment, as shown in the attached Figure 4-5 As shown, a guide assembly is provided at the bottom end of the arc-shaped trough plate 11; the guide assembly includes a socket frame 15 fixedly arranged at the bottom end of the arc-shaped trough plate 11, and the inner wall of the socket frame 15 is provided with a slidingly connected guide rod 19, and one side of the guide rod 19 is provided with a connecting block 16 fixedly connected to the socket frame 15, and one side of the connecting block 16 is fixedly connected to an extrusion electric cylinder 17; the output end of the extrusion electric cylinder 17 is fixedly connected to a pressing block 18, and the pressing block 18 is used to extrude the concave sleeve plate 1, the bottom end of the guide rod 19 is fixedly connected to a support block 20, and the support block 20 is fixedly connected to the concave sleeve plate 1, the top cross-sectional area of ​​the guide rod 19 is larger than the bottom cross-sectional area of ​​the guide rod 19, and the outer wall of the guide rod 19 and the inner wall of the socket frame 15 are both smooth surfaces.

[0028] When the bevel angle adjustment mechanism of the circular saw of the present technology is in use, the upward movement of the arc-shaped slot plate 11 will drive the sleeve frame 15 to move upward, and the sleeve frame 15 will cause the connecting block 16 to move upward, and the connecting block 16 will drive the extrusion electric cylinder 17 to move upward, and the extrusion electric cylinder 17 will drive the pressure block 18 to move upward, and the sleeve frame 15 will slide upward along the outer wall of the guide rod 19 at the same time, and the concave sleeve plate 1 supports the support block 20, and the support block 20 supports the guide rod 19, so as to ensure that the arc-shaped slot plate 11 moves along the specified vertical position.

[0029] The contents not described in detail in the specification belong to the existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the existing technology and are not described here.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A circular saw bevel angle adjustment mechanism, comprising a concave sleeve (1), a rotating shaft (2) and an angle rotation block (3), characterized in that: The rotating shaft (2) is rotatably connected to the inside of the concave sleeve (1), the angle rotating block (3) is fixed to one end of the rotating shaft (2), and the upper surface of the angle rotating block (3) is provided with an extended angle adjustment mechanism; The extended angle adjustment mechanism comprises a sleeve plate (6) fixedly arranged on the upper surface of the angle rotating block (3), and a sleeve block (5) is fixedly connected to one side of the inner wall of the sleeve plate (6), and a support rod (4) is slidably connected to the inner wall of the sleeve block (5), and the support rod (4) is fixedly connected to the angle rotating block (3); An electric cylinder (7) is fixedly mounted on the top of the inner wall of the sleeve plate (6), and a support block (8) is fixedly mounted on the bottom of the electric cylinder (7). A linkage roller (9) is fixedly connected to one side of the support block (8), and the linkage roller (9) is rotatably connected to the concave sleeve plate (1). A sliding rod (10) is fixedly mounted on one side of the sleeve plate (6), and an arc-shaped groove plate (11) is slidably connected to the outer wall of the sliding rod (10).

2. The circular saw bevel angle adjustment mechanism according to claim 1, characterized in that: The vertical cross-section of the sleeve plate (6) is concave, and the outer wall of the support rod (4) and the inner wall of the sleeve block (5) are both smooth surfaces; The cross-section of the support rod (4) is circular.

3. The circular saw bevel angle adjustment mechanism according to claim 1, characterized in that: The outer wall of the slide bar (10) and the inner wall of the arc-shaped groove plate (11) are both smooth surfaces, and the vertical cross-section of the slide bar (10) is circular.

4. The circular saw bevel angle adjustment mechanism according to claim 1, characterized in that: A rotating motor (12) is fixedly mounted on one end of the rotating shaft (2), and a bracket (13) is provided on the lower surface of the rotating motor (12). The bracket (13) is used to support the rotating motor (12), and the rotating motor (12) and the concave sleeve plate (1) are both fixedly connected to the bracket (13).

5. The circular saw bevel angle adjustment mechanism according to claim 1, characterized in that: Both sides of the arc-shaped slot plate (11) are slidably connected to limit rings (14), and the two limit rings (14) are symmetrically arranged with respect to the arc-shaped slot plate (11).

6. The circular saw bevel angle adjustment mechanism according to claim 1, characterized in that: A guide assembly is provided at the bottom end of the arc-shaped slot plate (11); The guide assembly includes a sleeve frame (15) fixedly arranged at the bottom end of the arc-shaped slot plate (11), and the inner wall of the sleeve frame (15) is provided with a guide rod (19) connected in a sliding manner, and one side of the guide rod (19) is provided with a connecting block (16) fixedly connected to the sleeve frame (15), and one side of the connecting block (16) is fixedly connected to an extrusion electric cylinder (17); The output end of the extrusion electric cylinder (17) is fixedly connected to a pressing block (18), and the pressing block (18) is used to extrude the concave sleeve (1). The bottom end of the guide rod (19) is fixedly connected to a supporting block (20), and the supporting block (20) is fixedly connected to the concave sleeve (1).

7. The circular saw bevel angle adjustment mechanism according to claim 6, characterized in that: The cross-sectional area of ​​the top end of the guide rod (19) is larger than the cross-sectional area of ​​the bottom end of the guide rod (19), and the outer wall of the guide rod (19) and the inner wall of the sleeve frame (15) are both smooth surfaces.

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