Primary and secondary saw convenient to adjust

Abstract

The invention discloses a child-mother saw convenient to adjust, which comprises a rack, a first adjusting mechanism, a first saw body and a second saw body, the first adjusting mechanism comprises a first seat body, a second seat body, a first adjusting screw rod and a first elastic piece, the first seat body is arranged on the rack, and the second seat body can be in sliding connection with the first seat body along the width direction of the rack; the first adjusting screw rod is rotationally connected to the first seat body and is in threaded transmission connection with the second seat body, the second seat body can be driven to slide by rotating the first adjusting screw rod, the first elastic piece is connected between the second seat body and the first adjusting screw rod in an abutting mode in the width direction of the machine seat, the first saw body is arranged on the second seat body, and the second saw body is arranged on the machine frame. The first saw body is located on one side of the first saw body in the length direction of the rack. The elastic force applied by the first elastic piece can eliminate the thread gap between the first adjusting screw rod and the second seat body, the transmission precision degree is improved, the thread locking capacity can be improved, and position adjustment can be completed only by rotating the first adjusting screw rod.

Description

Technical Field

[0001] This invention relates to the field of chainsaw technology, and in particular to a pair of adjustable chainsaws. Background Technology

[0002] In the field of sawing technology, to achieve smooth cuts and improve cutting efficiency, a mother-daughter saw structure has emerged. This structure typically includes a daughter saw at the front and a mother saw at the rear. During operation, the daughter saw first makes a shallow cut on the surface of the board, forming a pre-cut groove. The mother saw then completes the final cut along this pre-cut groove, effectively preventing edge chipping, improving the quality of the cross-section, and potentially accelerating the overall cutting speed. To ensure the cutting effect, the daughter and mother saws must be precisely aligned in the cutting direction. Existing technologies typically include an adjustment mechanism for adjusting the position of the daughter saw. This mechanism generally includes a slide rail structure mounted on the machine base, a slider connected to the daughter saw, and a slotted hole through the slider with a locking bolt. During adjustment, the locking bolt must first be loosened, the daughter saw moved along the slide rail to the aligned position, and then the bolt retightened for fixation. Each adjustment requires loosening and tightening the bolt, a cumbersome and time-consuming process. Furthermore, manual adjustment makes it difficult to achieve precise alignment, and both adjustment accuracy and efficiency need improvement. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an easily adjustable master-slave saw that can solve the problems of low adjustment accuracy and efficiency.

[0004] According to a first aspect of the present invention, an easily adjustable mother-daughter saw includes: a frame, a first adjustment mechanism, a first saw body, and a second saw body. The first adjustment mechanism includes a first base, a second base, a first adjustment screw, and a first elastic element. The first base is disposed on the frame. The second base is slidably connected to the first base along the width direction of the frame. The first adjustment screw is rotatably connected to the first base and threadedly connected to the second base. Rotating the first adjustment screw can drive the second base to slide. The first elastic element abuts against the second base and the first adjustment screw along the width direction of the frame. The first saw body is disposed on the second base, and the second saw body is disposed on the frame and located on one side of the first saw body along the length direction of the frame.

[0005] According to an embodiment of the present invention, an easily adjustable mother-daughter saw has at least the following advantages: a first saw body is designated as the daughter saw, a second saw body as the mother saw, the length direction of the frame is the cutting direction, and the width direction of the frame is the direction in which the first saw body and the second saw body are aligned. By rotating the first adjusting screw, it can be driven to the second base body, and the second base body is driven to slide and adjust its position along the width direction of the frame to align the first saw body and the second saw body. The elastic element between the first adjusting screw and the second base body can apply an elastic force to the second base body and the first adjusting screw in opposite directions. The elastic force can eliminate the thread gap between the first adjusting screw and the second base body, improve the transmission accuracy, and the applied elastic force can also improve the locking ability of the thread. Thus, only rotating the first adjusting screw is needed to complete the position adjustment, without the need to loosen or tighten the fastening bolts in other parts, making the operation more convenient.

[0006] According to some embodiments of the present invention, the first adjusting screw is provided with a gripping part, a connecting part, an abutting platform and a screw part in sequence along its axial direction. The connecting part is rotatably connected to the first seat body, and the screw part is threadedly connected to the second seat body. One end of the first elastic member abuts against the abutting platform and the other end abuts against the second seat body.

[0007] According to some embodiments of the present invention, the first seat body is provided with a limiting hole, the bottom of the second seat body is provided with a transmission part, the first adjusting screw is threadedly connected to the transmission part, the transmission part is located in the limiting hole, and the limiting hole can limit the sliding stroke of the second seat body.

[0008] According to some embodiments of the present invention, the frame is further provided with a second adjustment mechanism, the first seat is disposed on the second adjustment mechanism, and the second adjustment mechanism is capable of adjusting the position of the first seat in the vertical direction.

[0009] According to some embodiments of the present invention, the second adjustment mechanism includes a first fixed base, a second adjusting screw, a first slide rail, and a first slider seat. The first fixed base is fixedly connected to the frame. The first slide rail extends vertically and is connected to the first fixed base. The first slider seat is slidably connected to the first slide rail. The first seat body is disposed on the first slider seat. The second adjusting screw is rotatably disposed on the first fixed base and is threadedly connected to the first slider seat. Rotating the second adjusting screw can drive the first slider seat to rise and fall.

[0010] According to some embodiments of the present invention, the second adjusting mechanism further includes a second elastic element, which abuts against the second adjusting screw and the first slider seat in a vertical direction.

[0011] According to some embodiments of the present invention, the first seat includes a base plate and two side plates. The base plate extends along the width direction of the frame, and the side plates are provided on both sides of the base plate along the length direction of the frame. The second seat is slidably connected to the top surface of the base plate, and the first slider seat is connected to the outer side wall of the side plate.

[0012] According to some embodiments of the present invention, the frame is further provided with a third adjustment mechanism, the second saw body is disposed on the third adjustment mechanism, and the third adjustment mechanism can drive the second saw body to adjust its position by raising and lowering it in the vertical direction.

[0013] According to some embodiments of the present invention, the third adjustment mechanism includes a second fixed base, a second slide rail, a third adjusting screw, and a second slider seat. The second fixed base is fixedly connected to the frame. The second slide rail extends vertically and is connected to the second fixed base. The second slider seat is slidably connected to the second slide rail. The second saw body is connected to the second slider seat. The third adjusting screw is rotatably connected to the second fixed base and threadedly connected to the second slider seat. Rotating the third adjusting screw can drive the second slider seat to rise and fall.

[0014] According to some embodiments of the present invention, the head of the third adjusting screw is arranged facing upward, the top of the frame is provided with a worktable, the worktable is provided with an adjustment clearance hole, and the adjustment clearance hole is located at a position opposite to the head of the third adjusting screw.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the overall structure of some embodiments of the present invention; Figure 2 for Figure 1 Exploded view of the first saw body section; Figure 3 for Figure 1 A three-dimensional sectional view of the first adjustment mechanism in the middle; Figure 4 This is a schematic diagram of the first saw body, the first adjustment mechanism, and the second adjustment mechanism.

[0017] Figure label: Frame 100, worktable 110, adjustment clearance hole 111; First adjustment mechanism 200, first seat 210, base plate 211, side plate 212, limiting hole 213, second seat 220, transmission part 221, first adjustment screw 230, grip part 231, connecting part 232, abutment platform 233, screw part 234, first elastic element 240; First saw body 300; Second saw body 400; The system comprises a second adjusting mechanism 500, a first fixed base 510, a second adjusting screw 520, a first slide rail 530, a first slider seat 540, and a second elastic element 550. The system comprises a third adjusting mechanism 600, a second fixed base 610, a second slide rail 620, a third adjusting screw 630, and a second slider seat 640. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and 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 of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Reference Figures 1 to 4According to a first aspect embodiment of the present invention, an easily adjustable mother-daughter saw includes a frame 100, a first adjustment mechanism 200, a first saw body 300, and a second saw body 400. The first adjustment mechanism 200 includes a first seat 210, a second seat 220, a first adjustment screw 230, and a first elastic element 240. The first seat 210 is disposed on the frame 100. The second seat 220 is slidably connected to the first seat 210 along the width direction of the frame 100. The first adjustment screw 230 is rotatably connected to the first seat 210 and threadedly connected to the second seat 220. Rotating the first adjustment screw 230 can drive the second seat 220 to slide. The first elastic element 240 abuts against the second seat 220 and the first adjustment screw 230 along the width direction of the frame 100. The first saw body 300 is disposed on the second seat 220, and the second saw body 400 is disposed on the frame 100 and located on one side of the first saw body 300 along the length direction of the frame 100. The first saw body 300 is designated as the slave saw, and the second saw body 400 is designated as the master saw. The length direction of the frame 100 is the cutting direction, and the width direction of the frame 100 is the direction in which the first saw body 300 and the second saw body 400 are aligned. By rotating the first adjusting screw 230, it can drive the second seat 220 and drive the second seat 220 to slide and adjust its position along the width direction of the frame 100 to align the first saw body 300 and the second saw body 400. The elastic element between the first adjusting screw 230 and the second seat 220 can apply an elastic force in opposite directions to the second seat 220 and the first adjusting screw 230. The elastic force can eliminate the thread gap between the first adjusting screw 230 and the second seat 220, improve the transmission accuracy, and the applied elastic force can also improve the locking ability of the thread. Therefore, only rotating the first adjusting screw 230 is needed to complete the position adjustment, without the need to loosen or tighten the fastening bolts in other parts, making the operation more convenient.

[0022] Specifically, a slide rail slider structure can be provided between the first base 210 and the second base 220, and is set along the width direction of the frame 100 to facilitate the sliding of the second base 220. The first adjusting screw 230 can extend along the width direction of the frame 100, and the head of the first adjusting screw 230 can face outward to facilitate the operator to turn it. The inner end of the first adjusting screw 230 is threadedly connected to the second base 220, and a first elastic element 240 abuts between the outer wall of the second base 220 and the first adjusting screw 230. The first elastic element 240 can be a spring, and the first adjusting screw 230 can pass through the spring. One end of the spring abuts against the first adjusting screw 230, and the other end abuts against the outer wall of the second base 220, thereby generating an elastic force to lock the relative position of the first adjusting screw 230 and the second base 220. The threaded transmission adjustment is precise, and the first saw body 300 and the second saw body 400 can be precisely fine-tuned. The above structure facilitates adjustment and improves adjustment accuracy.

[0023] Reference Figures 3 to 4 In some embodiments of the present invention, the first adjusting screw 230 is provided with a gripping part 231, a connecting part 232, an abutment platform 233, and a screw part 234 in sequence along its axial direction. The connecting part 232 is rotatably connected to the first base 210, and the screw part 234 is threadedly connected to the second base 220. One end of the first elastic member 240 abuts against the abutment platform 233, and the other end abuts against the second base 220. Specifically, the gripping part 231 can be a screw head with friction texture on its peripheral wall for easy hand tightening. The outer end of the gripping part 231 can also be provided with a hexagonal groove or a cross groove to facilitate tool insertion and tightening. The connecting part 232 is directly rotatably connected to the first base 210, the abutment platform 233 protrudes outward in its circumference, the screw part 234 is a threaded rod, and the first elastic member 240 can pass through the threaded part and abut against the abutment platform 233, so that the first elastic member 240 can abut against the first adjusting screw 230 and the second base 220 in the width direction of the frame 100.

[0024] Reference Figure 3 In some embodiments of the present invention, the first seat 210 is provided with a limiting hole 213, and the bottom of the second seat 220 is provided with a transmission part 221. The first adjusting screw 230 is threadedly connected to the transmission part 221. The transmission part 221 is located inside the limiting hole 213, and the limiting hole 213 can limit the sliding stroke of the second seat 220. Specifically, the required alignment adjustment stroke of the first saw body 300 and the second saw body 400 is small. To prevent over-adjustment, the first seat 210 can be provided with a limiting hole 213 extending along the width direction of the frame 100. The transmission part 221 at the bottom of the second seat 220 can extend into the limiting hole 213. The transmission part 221 is provided with a threaded hole, and the first adjusting screw 230 is threadedly connected to the threaded hole. When the second seat 220 is driven to slide, the transmission part 221 can abut against the side wall of the limiting hole 213 to limit the movement and prevent the first adjusting screw 230 from being over-tightened.

[0025] Reference Figure 2 and Figure 4 In some embodiments of the present invention, the frame 100 is further provided with a second adjustment mechanism 500, and the first seat 210 is disposed on the second adjustment mechanism 500. The second adjustment mechanism 500 can adjust the position of the first seat 210 in the vertical direction. The cutting depth of the first saw body 300 can be adjusted by the second adjustment mechanism 500.

[0026] Reference Figure 4In some embodiments of the present invention, the second adjustment mechanism 500 includes a first fixed base 510, a second adjusting screw 520, a first slide rail 530, and a first slider seat 540. The first fixed base 510 is fixedly connected to the frame 100. The first slide rail 530 extends vertically and is connected to the first fixed base 510. The first slider seat 540 is slidably connected to the first slide rail 530. A first seat body 210 is disposed on the first slider seat 540. The second adjusting screw 520 is rotatably disposed on the first fixed base 510 and is threadedly connected to the first slider seat 540. Rotating the second adjusting screw 520 can drive the first slider seat 540 to rise and fall. The threaded adjustment distance is more precise, which is convenient for the operator to adjust. Specifically, two first slide rails 530 and first slider seats 540 can be provided, respectively located on both sides of the first seat body 210, with one of the first slider seats 540 being operatively connected to the second adjusting screw 520. Another first slider seat 540 slides along the first slide rail 530 so that the first saw body 300 can be smoothly raised and lowered.

[0027] Reference Figure 4 In some embodiments of the present invention, the second adjusting mechanism 500 further includes a second elastic element 550, which abuts against the second adjusting screw 520 and the first slider seat 540 in a vertical direction. Specifically, the second elastic element 550 can be a spring, which can apply an elastic force to move the second adjusting screw 520 and the first slider seat 540 in opposite directions, thereby eliminating the gap between the second adjusting screw 520 and the first slider seat 540, making the adjustment more precise. Furthermore, the elastic force can increase the thread locking force, and the operator only needs to turn the second adjusting screw 520 to adjust, without the need to tighten bolts in other positions, making the operation convenient.

[0028] Reference Figure 2 and Figure 4 In some embodiments of the present invention, the first base 210 includes a base plate 211 and two side plates 212. The base plate 211 extends along the width direction of the frame 100, and the side plates 212 are provided on both sides of the base plate 211 along the length direction of the frame 100. The second base 220 is slidably connected to the top surface of the base plate 211, and the outer side wall of the side plate 212 is connected to the first slider seat 540. Specifically, the base plate 211 and the side plates 212 can support the motor of the second base 220 and the first saw body 300, and the side plates 212 can also protect the motor from the side. At the same time, the side plates 212 can also provide a connection position for the first slider seat 540.

[0029] Reference Figures 1 to 2 In some embodiments of the present invention, the frame 100 is further provided with a third adjustment mechanism 600, and the second saw body 400 is disposed in the third adjustment mechanism 600. The third adjustment mechanism 600 can drive the second saw body 400 to move up and down in the vertical direction to adjust its position. The cutting depth of the second saw body 400 can be adjusted.

[0030] Reference Figures 1 to 2 In some embodiments of the present invention, the third adjustment mechanism 600 includes a second fixed base 610, a second slide rail 620, a third adjusting screw 630, and a second slider seat 640. The second fixed base 610 is fixedly connected to the frame 100. The second slide rail 620 extends vertically and is connected to the second fixed base 610. The second slider seat 640 is slidably connected to the second slide rail 620. The second saw body 400 is connected to the second slider seat 640. The third adjusting screw 630 is rotatably connected to the second fixed base 610 and threadedly connected to the second slider seat 640. Rotating the third adjusting screw 630 can drive the second slider seat 640 to rise and fall. The threaded transmission is more precise, making the lifting and lowering adjustment of the second saw body 400 more accurate.

[0031] Reference Figures 1 to 2 In some embodiments of the present invention, the head of the third adjusting screw 630 is arranged facing upwards, and a worktable 110 is provided on the top of the frame 100. The worktable 110 is provided with an adjustment clearance hole 111, which is located opposite to the head of the third adjusting screw 630. Specifically, the hexagonal or cross-shaped groove of the head of the third adjusting screw 630 can be arranged facing upwards. The worktable 110 is used to abut against the plate. By providing the adjustment clearance hole 111, the tool can be directly inserted into the head of the third adjusting screw 630 from the worktable 110 to turn it, making the operation more convenient.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An easily adjustable mother-and-daughter saw, characterized in that, include: Rack (100); The first adjustment mechanism (200) includes a first seat (210), a second seat (220), a first adjustment screw (230), and a first elastic element (240). The first seat (210) is disposed on the frame (100). The second seat (220) is slidably connected to the first seat (210) along the width direction of the frame (100). The first adjustment screw (230) is rotatably connected to the first seat (210) and threadedly connected to the second seat (220). Rotating the first adjustment screw (230) can drive the second seat (220) to slide. The first elastic element (240) abuts against the second seat (220) and the first adjustment screw (230) along the width direction of the frame (100). The first saw body (300) is disposed on the second base body (220); The second saw body (400) is disposed on the frame (100) and located on one side of the first saw body (300) along the length direction of the frame (100).

2. The adjustable mother-daughter saw according to claim 1, characterized in that, The first adjusting screw (230) is provided with a gripping part (231), a connecting part (232), an abutment platform (233) and a screw part (234) in sequence along its axial direction. The connecting part (232) is rotatably connected to the first seat (210), and the screw part (234) is threadedly connected to the second seat (220). One end of the first elastic element (240) abuts against the abutment platform (233), and the other end abuts against the second seat (220).

3. The adjustable mother-daughter saw according to claim 1, characterized in that, The first seat (210) is provided with a limiting hole (213), and the bottom of the second seat (220) is provided with a transmission part (221). The first adjusting screw (230) is threadedly connected to the transmission part (221). The transmission part (221) is located in the limiting hole (213), and the limiting hole (213) can limit the sliding stroke of the second seat (220).

4. The adjustable mother-daughter saw according to claim 1, characterized in that, The frame (100) is also provided with a second adjustment mechanism (500), and the first seat (210) is provided on the second adjustment mechanism (500). The second adjustment mechanism (500) can adjust the position of the first seat (210) in the vertical direction.

5. The adjustable mother-daughter saw according to claim 4, characterized in that, The second adjustment mechanism (500) includes a first fixed seat (510), a second adjusting screw (520), a first slide rail (530), and a first slider seat (540). The first fixed seat (510) is fixedly connected to the frame (100). The first slide rail (530) extends vertically and is connected to the first fixed seat (510). The first slider seat (540) is slidably connected to the first slide rail (530). The first seat body (210) is disposed on the first slider seat (540). The second adjusting screw (520) is rotatably disposed on the first fixed seat (510) and is threadedly connected to the first slider seat (540). Rotating the second adjusting screw (520) can drive the first slider seat (540) to rise and fall.

6. The adjustable mother-daughter saw according to claim 5, characterized in that, The second adjustment mechanism (500) further includes a second elastic element (550), which abuts against the second adjustment screw (520) and the first slider seat (540) in a vertical direction.

7. The adjustable mother-daughter saw according to claim 5, characterized in that, The first seat (210) includes a base plate (211) and two side plates (212). The base plate (211) extends along the width direction of the frame (100), and the side plates (212) are provided on both sides of the base plate (211) along the length direction of the frame (100). The second seat (220) is slidably connected to the top surface of the base plate (211), and the first slider seat (540) is connected to the outer side wall of the side plate (212).

8. The adjustable mother-daughter saw according to claim 1, characterized in that, The frame (100) is also provided with a third adjustment mechanism (600), and the second saw body (400) is provided on the third adjustment mechanism (600). The third adjustment mechanism (600) can drive the second saw body (400) to adjust its position by raising and lowering in the vertical direction.

9. The adjustable mother-daughter saw according to claim 8, characterized in that, The third adjustment mechanism (600) includes a second fixed seat (610), a second slide rail (620), a third adjusting screw (630), and a second slider seat (640). The second fixed seat (610) is fixedly connected to the frame (100). The second slide rail (620) extends vertically and is connected to the second fixed seat (610). The second slider seat (640) is slidably connected to the second slide rail (620). The second saw body (400) is connected to the second slider seat (640). The third adjusting screw (630) is rotatably connected to the second fixed seat (610) and threadedly connected to the second slider seat (640). Rotating the third adjusting screw (630) can drive the second slider seat (640) to rise and fall.

10. The adjustable mother-daughter saw according to claim 9, characterized in that, The head of the third adjusting screw (630) is set upwards, and the top of the frame (100) is provided with a worktable (110). The worktable (110) is provided with an adjustment clearance hole (111), which is located opposite to the head of the third adjusting screw (630).

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