Guiding device of cutting tool

Abstract

The guide device of the cutting tool comprises a base and a locking mechanism, the bottom of the base is provided with a sliding groove matched with a guide rail, and therefore the base can move in the extending direction of the guide rail. The locking mechanism is located on the side, close to the bottom plate, of the base, the bottom plate of the cutting tool can be connected with the base, the cutting tool can conduct cutting operation along the guide rail, and the cutting direction of the cutting tool is parallel to the extending direction of the guide rail. The locking mechanism comprises two protrusions arranged in the cutting direction, each protrusion corresponds to a limiting plate on the side, close to the base, of the bottom plate, a clamping groove extending in the cutting direction is formed in each protrusion, and when the limiting plates are embedded into the clamping grooves, the limiting plates can limit the protrusions to be away from the bottom plate. The locking mechanism further comprises a guide rod perpendicular to the cutting direction, the guide rod can be locked by a locking piece arranged on the bottom plate after the limiting plate enters the clamping groove so as to prevent the limiting plate from being separated from the clamping groove in the cutting direction, and the locking relation between the bottom plate and the base is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, and specifically to a guide device for a cutting tool. Background Technology

[0002] In the field of power tools, cutting tools are categorized according to their different uses, such as circular saws, jigsaws, and angle grinders. These cutting tools can efficiently and safely complete various cutting tasks. When using these cutting tools, there is usually a requirement to cut various materials along a straight line. Typical cutting tools come with a base plate or are detachably mounted on a base plate and connected to the base plate via a guide device to ensure that the cutting tool can perform cutting operations along the direction of the guide rail.

[0003] In existing cutting tools, the design of the guide device is crucial for ensuring cutting accuracy and stability. Traditional guide devices typically focus on the stability of the connection between the guide device and the guide rail, but lack further design for the connection between the base plate and the guide device, leading to several problems in practical applications. First, the locking mechanism on the guide device is often simplistic and cannot effectively limit the relative displacement between the base and the base plate, causing deviations during cutting and affecting cutting accuracy. Second, existing guide devices lack an effective adjustment mechanism for adjusting the gap between the base and the base plate, making it easy for the cutting tool to deviate when moving along the cutting direction, further affecting cutting quality. Furthermore, existing locking mechanisms are prone to wear after long-term use, causing the connection between the guide rod and the base plate to loosen, affecting the stability of the base and the base plate. Summary of the Invention

[0004] To solve the above problems, this utility model provides a guide device for a cutting tool.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A guide device for a cutting tool, used to guide the cutting tool to move along a guide rail, the cutting tool having a base plate that cooperates with the guide device, the guide device comprising:

[0007] Base;

[0008] The locking mechanism is located on the side of the base and the bottom plate, and includes a protrusion and a guide rod that are detachably connected to the bottom plate.

[0009] The protrusion has a groove extending along the cutting direction of the cutting tool, and the groove cooperates with a limiting plate on the base plate to restrict the base from moving away from the base plate.

[0010] The guide rod is perpendicular to the cutting direction and cooperates with the locking component on the base plate to restrict the movement of the limiting plate in the direction of disengaging from the slot.

[0011] Furthermore, the guiding device also includes at least two balancing elements pivotally connected to the base, the base adjusting the gap with the bottom plate via the balancing elements.

[0012] Furthermore, the balancing component includes an upper adjustment knob and a lower adjustment knob stacked on top of each other and respectively abutting against the side of the base plate. The upper adjustment knob has a first marking groove on the side away from the base plate, and the lower adjustment knob has a second marking groove on the side away from the base plate. When the first marking groove and the second marking groove are aligned, the side of the base is parallel to the side of the base plate.

[0013] Furthermore, the upper adjustment knob includes a first eccentric wheel, which can rotate around a balance pin mounted on the base to change the distance between its outer periphery and the side of the base plate.

[0014] Furthermore, the lower adjustment knob includes a second eccentric wheel, which can rotate around a balance pin mounted on the base to change the distance between its outer periphery and the side of the base plate.

[0015] Furthermore, the base plate has through holes corresponding to the protrusions, and the through holes are L-shaped.

[0016] Furthermore, the locking element includes a locking seat and a locking screw, and the guide rod is detachably connected to the base plate via the locking screw.

[0017] Furthermore, the base and the guide rod are detachably connected.

[0018] The advantages of this utility model over the prior art are as follows:

[0019] This invention significantly improves the cutting accuracy, stability, and ease of operation of the cutting tool by optimizing the locking mechanism, adding a balancing component, improving the gap adjustment mechanism, and enhancing locking reliability. Simultaneously, the detachable guide rod design and gap adjustment function further extend the device's service life and reduce maintenance costs, demonstrating broad application prospects and practical value. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the assembly of the cutting tool and the guiding device in an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the assembly of the base plate and the guide device in an embodiment of this utility model;

[0022] Figure 3 This is a top view of the base plate and guide device in an embodiment of this utility model;

[0023] Figure 4This is a schematic diagram of the guiding device in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the base plate in an embodiment of this utility model;

[0025] Figure 6 This is an exploded view of the guiding device portion of the embodiment of this utility model;

[0026] Figure 7 This is a schematic diagram of the balancing component in an embodiment of the present invention.

[0027] In the picture:

[0028] 1. Cutting tools;

[0029] 2. Guiding device;

[0030] 3. Base plate; 301. Limiting plate; 302. Locking component; 3021. Locking screw; 3022. Locking seat; 303. Through hole;

[0031] 4. Base; 401. Balance pin;

[0032] 5. Locking mechanism; 501. Protrusion; 5011. Slot; 502. Guide rod; 503. Balancing component; 5031. Upper adjustment knob; 50311. First marking slot; 50312. First eccentric wheel; 5032. Lower adjustment knob; 50321. Second eccentric wheel; 50322. Rotating component; 50323. Second marking slot; D. Cutting direction. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0034] Those skilled in the art will understand that, without conflict, the features in the following embodiments and implementations can be combined with each other.

[0035] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as "upper," "lower," "front," and "rear," which indicate orientation or positional relationship, are based solely on the orientation or positional relationship shown in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description. They do not indicate or imply that the device / component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention.

[0036] As used herein, the singular forms “a,” “an,” and “the” include plural objects, and the plural form “multiple” includes two or more objects, unless otherwise expressly indicated. As used herein, the term “or” is generally used to include the meaning of “and / or,” unless otherwise expressly indicated, and the terms “install,” “connect,” and “link” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Connections can be direct or indirect through an intermediate medium, and can be internal communication between two components or an interaction between two components.

[0037] Please refer to Figure 1-7 This utility model embodiment provides a guide device 2 for a cutting tool 1, including a base 4 and a locking mechanism 5. The bottom of the base 4 has a groove that cooperates with the guide rail, so the base 4 can move along the extension direction of the guide rail. The locking mechanism 5 is located on the side of the base 4 close to the bottom plate 3, and can connect the bottom plate 3 of the cutting tool 1 and the base 4, so that the cutting tool 1 can also perform cutting operations along the guide rail, and the cutting direction D of the cutting tool 1 is parallel to the extension direction of the guide rail.

[0038] In this embodiment, the locking mechanism 5 includes two protrusions 501 arranged along the cutting direction D. Each protrusion 501 corresponds to a limiting plate 301 on the base plate 3 near the base 4, and the protrusion 501 is provided with a slot 5011 extending along the cutting direction D. When the limiting plate 301 is inserted into the slot 5011, the limiting plate 301 can restrict the protrusion 501 from moving away from the base plate 3, and at the same time, the base 4 is also restricted from moving away from the base plate 3. Furthermore, two or more protrusions 501 can maintain the parallel positional relationship between the base 4 and the base plate 3 in the cutting direction D.

[0039] In addition, the locking mechanism 5 also includes a guide rod 502 perpendicular to the cutting direction D. After the limiting plate 301 enters the slot 5011, the guide rod 502 can be locked by the locking member 302 set on the base plate 3 to restrict the limiting plate 301 from disengaging from the slot 5011 in the cutting direction D, thereby further ensuring the locking relationship between the base plate 3 and the base 4, and thus ensuring that the cutting tool 1 can move along the guide rail under the drive of the guide device 2.

[0040] Please refer to Figure 3 , 4 In the embodiments of this application, the guide device 2 further includes two balancing members 503. The balancing members 503 are pivotally connected to the balancing pins 401 on the base 4. By rotating the balancing members 503, the balancing members 503 can be abutted against the side of the base plate 3. Generally speaking, in order to make it easy to embed the limiting plate 301 into the slot 5011, the width of the slot 5011 will be slightly larger than the width of the limiting plate 301. This will create a certain gap between the base plate 3 and the base 4. Therefore, in this embodiment, the balancing members 503 are set on the base 4 to adjust the gap between the base 4 and the base plate 3, so as to avoid the cutting tool 1 from deviating when moving along the cutting direction D.

[0041] Specifically, each balancing component 503 includes an upper adjustment knob 5031 and a lower adjustment knob 5032 stacked vertically. The upper adjustment knob 5031 has a first marking groove 50311 on the side away from the base plate 3, and the lower adjustment knob 5032 has a second marking groove 50323 on the side away from the base plate 3. By adjusting the upper adjustment knob 5031 and the lower adjustment knob 5032 respectively, when the first marking groove 50311 aligns with the second marking groove 50323, the upper adjustment knob 5031 and the lower adjustment knob 5032 are aligned. All 5032 parts abut against the side of the base plate 3. At this time, the side of the base 4 is parallel to the side of the base plate 3, that is, the horizontal plane of the bottom surface of the base 4 is parallel to the horizontal plane of the bottom surface of the base plate 3. In some cutting tools, the side of the base plate 3 is not completely perpendicular to its bottom surface. In this embodiment, the upper adjustment knob 5031 and the lower adjustment knob 5032 can adjust their radius and eccentricity accordingly, so that the side of the base 4 is parallel to the side of the base plate 3 when the first marking groove 50311 and the second marking groove 50323 are aligned. Therefore, the cutting tool 1 can perform cutting operations at a preset angle, avoiding the situation where the cutting angle is offset and the cutting surface is bent.

[0042] Please refer to Figure 6 , 7The upper adjustment knob 5031 includes a first eccentric wheel 50312. A boss extends upward from the top surface of the first eccentric wheel 50312, and serrated protrusions are distributed along the outer periphery of the boss (to increase friction). The first eccentric wheel 50312 rotates around the balance pin 401. Since the distance between the outer periphery of the first eccentric wheel 50312 and the balance pin 401 is different, the distance between the first eccentric wheel 50312 and the outer periphery and the base plate 3 can be adjusted by rotating the boss. When the first eccentric wheel 50312 abuts against the base plate 3 and cannot be rotated further, the gap between the base 4 and the base plate 3 is the largest, and the base 4 and the base plate 3 can maintain a stable contact relationship. The lower adjustment knob 5032 includes a second eccentric wheel 50321 and a rotating component 50322 for driving the second eccentric wheel 50321 to rotate. The second eccentric wheel 50321 has a shaped hole in the middle. The rotating component 50322 has a transmission pin at the lower part that matches the shaped hole, and serrated protrusions are also distributed on the outer periphery of the upper part. Therefore, by rotating the rotating component 50322, the second eccentric wheel 50321 can be driven to rotate. Similar to the first eccentric wheel 50312, the second eccentric wheel 50321 can also abut against the base plate 3 when rotating, so that the gap between the base 4 and the base plate 3 reaches the maximum distance. Therefore, with the cooperation of the first eccentric wheel 50312 and the second eccentric wheel 50321, the base 4 and the base plate 3 can not only maintain a stable contact relationship, but also make the horizontal planes of the base 4 and the base plate 3 parallel.

[0043] Please refer to Figure 3-5 In this embodiment, the base plate 3 has two or more L-shaped through holes 303 on its side corresponding to the protrusion 501. The limiting plate 301 is located on the side opposite to the cutting direction D of the through hole 303. Specifically, the direction in which the through hole 303 extends along the cutting direction D is set to the front, and the limiting plate 301 is located behind the through hole 303. This allows the protrusion 501 to first enter the through hole 303 and then move in the opposite direction to the cutting direction D when the cutting tool 1 is installed with the guide device 2, so that the limiting plate 301 is embedded in the slot 5011. At this time, when the cutting tool 1 is moved, the part of the base plate 3 around the limiting plate 301 can hold the protrusion 501. This avoids the situation where the friction between the guide rail and the base 4 or other conditions that hinder the movement of the base 4 on the guide rail may force a relative displacement between the base 4 and the base plate 3 when the cutting tool 1 is working along the cutting direction D, thus causing the limiting plate 301 to disengage from the slot 5011.

[0044] Please refer to Figure 5 In this embodiment, the locking component 302 includes a locking seat 3022 and a locking screw 3021. The locking seat 3022 is installed on the base plate 3 at a position corresponding to the guide rod 502. The locking seat 3022 is shaped like a "Z". Therefore, when the guide rod 502 enters the area below the locking seat 3022, the locking screw 3021 located above the locking seat 3022 can move downward to cooperate with the locking seat 3022 to lock the guide rod 502.

[0045] Please refer to Figure 5 The base 4 is provided with screw holes. Screws pass through the guide rod 502 and the screw holes respectively to detachably install the guide rod 502 on the base 4, so that the guide rod 502 can be replaced after long-term wear and tear, and to prevent the guide rod 502 from becoming loose when connected to the base plate 3, which would affect the connection between the base 4 and the base plate 3.

[0046] Before cutting, the base plate 3 of the cutting tool 1 needs to be installed on the guide rail via the guide device 2. First, the protrusion 501 on the base 4 needs to be aligned with the through hole 303 on the base plate 3 and inserted. Then, the base 4 is moved in the opposite direction of the cutting direction D so that the limiting plate 301 is fully embedded in the slot 5011 on the protrusion 501. Then, the locking screw 3021 is moved downward to lock the guide rod 502. Then, the upper adjustment knob 5031 and the lower adjustment knob 5032 are rotated to align the first marking slot 50311 and the second marking slot 50323 to adjust the gap between the base 4 and the base plate 3, so that the cutting tool 1 and the guide device 2 are parallel in the cutting direction D and the horizontal plane. This allows the cutting tool 1 to stably perform subsequent cutting operations along the direction of the guide rail.

[0047] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the content described in the above specific embodiments. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A guide device for a cutting tool, used to guide the cutting tool to move along a guide rail, the cutting tool having a base plate that cooperates with the guide device, characterized in that, The guiding device includes: Base; The locking mechanism is located on the side of the base and the bottom plate, and includes a protrusion and a guide rod that are detachably connected to the bottom plate. The protrusion has a groove extending along the cutting direction of the cutting tool, and the groove cooperates with a limiting plate on the base plate to restrict the base from moving away from the base plate. The guide rod is perpendicular to the cutting direction and cooperates with the locking component on the base plate to restrict the movement of the limiting plate in the direction of disengaging from the slot.

2. The guiding device for the cutting tool according to claim 1, characterized in that: The guiding device also includes at least two balancing elements pivotally connected to the base, the base adjusting the gap with the bottom plate via the balancing elements.

3. The guiding device for the cutting tool according to claim 2, characterized in that: The balancing component includes an upper adjustment knob and a lower adjustment knob stacked on top of each other and respectively abutting against the side of the base plate. The upper adjustment knob has a first marking groove on the side away from the base plate, and the lower adjustment knob has a second marking groove on the side away from the base plate. When the first marking groove and the second marking groove are aligned, the side of the base is parallel to the side of the base plate.

4. The guiding device for the cutting tool according to claim 3, characterized in that: The upper adjustment knob includes a first eccentric wheel, which can rotate around a balance pin on the base to change the distance between its outer periphery and the side of the base plate.

5. The guiding device for the cutting tool according to claim 3, characterized in that: The lower adjustment knob includes a second eccentric wheel, which can rotate around a balance pin on the base to change the distance between its outer periphery and the side of the base plate.

6. The guiding device for the cutting tool according to claim 1, characterized in that: The base plate has through holes corresponding to the protrusions, and the through holes are L-shaped.

7. The guiding device for the cutting tool according to claim 1, characterized in that: The locking element includes a locking seat and a locking screw, and the guide rod is detachably connected to the base plate via the locking screw.

8. The guiding device for the cutting tool according to claim 1, characterized in that: The base and the guide rod are detachably connected.

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