Manufacturing method of track saw and its tool following mechanism

The utility model relates to the technical field of a track saw, in particular to a track saw and a tool following mechanism thereof.

Background technology:

This part only provides background information related to the present disclosure, which is not necessarily the prior art.

The track saw in the prior art is generally modified from an electric circular saw, including an electric circular saw and a track assembly arranged at the bottom of the electric circular saw. The track assembly is composed of a slide rail arranged near the workpiece to be cut and a bottom plate arranged at the bottom of the electric circular saw. The electric circular saw is fixed on the bottom plate through a bracket. The part of the electric circular saw blade protruding from the bottom plate is used to cut objects. At the same time, the track saw also includes a blade following mechanism protruding from the bottom plate and close to the saw blade, The following problems exist in the use of the tool following mechanism in the prior art: 1) since the tool following plate of the tool following mechanism is relatively close to the saw blade, and the arc structure of the tool following plate surrounds the saw blade, it is inconvenient to replace the saw blade; 2) Since the following blade extends out of the bottom plate, when the rail saw is in idle state, the whole electric circular saw is in inclined state, resulting in the rail saw cannot be placed on the platform.

Technical realization elements:

The purpose of the utility model is to solve at least one of the problems existing in the above-mentioned prior art, which is achieved by the following technical solutions:

The first aspect of the utility model provides a blade following mechanism for a rail saw. The rail saw comprises a head shell, the saw blade of the rail saw is pivotally arranged on the head shell through a pivot shaft, the blade following mechanism comprises a blade following bracket sleeved outside the pivot shaft and located between the saw blade and the head shell, the blade following bracket is pivotally sleeved outside the pivot shaft, and the blade following mechanism further comprises a pair of blade following plates arranged at the position where the blade following bracket protrudes from the saw blade, A pair of heel plates are respectively arranged at the positions close to the saw blade on both sides of the saw blade.

Preferably, the first ends of the pair of blade following plates are arranged on the blade following bracket through the connecting shaft, the second ends of the pair of blade following plates extend in the direction of the saw blade, and the side of the pair of blade following plates facing the saw blade is an arc structure matching the contour of the saw blade.

Preferably, the tool following mechanism further comprises a link, one end of the link is pivotally arranged on the head shell, and the other end of the link is slidably arranged in the first slide groove on the tool following bracket.

Preferably, one end of the connecting rod is close to the top of the tool following bracket, and the first chute of the tool following bracket is arranged at the top of the tool following bracket.

Preferably, the tool following mechanism further comprises a link spring, one end of the link spring is connected to the link, and the other end of the link spring is connected to the tool following bracket.

Preferably, the connecting rod is provided with a first lug, the tool following bracket is provided with a second lug, one end of the connecting rod spring is connected to the first lug, and the other end of the connecting rod spring is connected to the second lug. When the tool following mechanism is in the working state, the connecting rod spring is in the stretched state.

Preferably, a second slide groove is also provided on the heel holder, and a slide rod penetrating the second slide groove is provided on the head case.

Preferably, both the first chute and the second chute are arc-shaped chutes.

The second aspect of the utility model provides a track saw. The track saw comprises a head shell and a saw blade arranged on the head shell. The track saw further comprises a tool following mechanism arranged on the head shell and close to the saw blade. The tool following mechanism is the tool following mechanism for the track saw according to the first aspect of the utility model.

It can be understood by those skilled in the art that the utility model pivotally sets the blade following bracket outside the pivot shaft, and when the rail saw is in an idle state or the saw blade is replaced, the blade following bracket can rotate to make a pair of blade following plates at a suitable position, which is convenient for the operator to change the saw blade or place the rail saw. Further, the tool following mechanism further comprises a connecting rod, one end of the connecting rod is pivotally arranged on the head shell, the other end of the connecting rod is slidably arranged on the first chute on the tool following bracket, and a connecting rod spring is also arranged between the connecting rod and the tool following bracket. When the tool following mechanism is in the working state, the connecting rod and the connecting rod spring can reduce the rotation of the tool following bracket and the tool following plate, and when the rail saw is in the idle state or the saw blade is replaced, As long as the upward thrust is applied to the pair of tool following plates, they can be retracted upward. When the thrust acting on the pair of tool following plates disappears, the connecting rod spring can drive the tool following bracket and the pair of tool following plates to move downward and return to the working position to ensure the normal use of the tool following plates during the cutting process.

Attached drawing description

Various other advantages and benefits will become clear to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The drawings are only for the purpose of showing the preferred embodiment, and are not considered as a limitation of the present invention. In addition, the same components are denoted by the same reference numerals throughout the drawings. In the drawings:

Fig. 1 is a structural diagram of a rail saw according to an embodiment of the present invention.

Fig. 2 is a structural diagram of the rail saw shown in Fig. 1 after the saw blade is removed.

Fig. 3 is a schematic diagram of the assembly structure of the blade following mechanism and the saw blade according to one embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a tool following mechanism according to an embodiment of the utility model.

Wherein, 10. Track saw; 11. Saw blade; 12. Pivot shaft; 13. Head shell; 14. Bottom plate; 21. Connecting rod; 211. A first lug; 22. Tool following bracket; 221. A first chute; 222. A second chute; 223. A second lug; 23. Heel plate; 24. Connecting rod spring.

Specific implementation

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that the application of the tool following mechanism in the rail saw of the utility model is only a preferred embodiment, and does not limit the application scope of the tool following mechanism of the utility model. For example, the tool following mechanism of the utility model can also be used for other equipment with similar structures. This adjustment does not deviate from the protection scope of the tool following mechanism of the utility model.

It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context otherwise expressly indicates, the singular forms "one", "one" and "described" as used herein may also mean including the plural form. The terms "including", "including" and "having" are inclusive and thus indicate the presence of the stated features, elements and / or components, but do not exclude the presence or addition of one or more other features, elements, components, and / or combinations thereof.

Although the terms first, second, etc. may be used herein to describe a plurality of elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may only be used to distinguish one element, component, region, layer or section from another region, layer or section. Unless explicitly stated above and below, terms such as "first", "second" and other numerical terms are not used in the text to imply order or order. In addition, in the description of the utility model, unless otherwise specified and limited, the terms "setting" and "connection" shall be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; It can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

For convenience of description, spatial relative terms can be used in the text to describe the relationship between one element or feature and another element or feature as shown in the figure. These relative terms are, for example, "two sides", "one end", "close", "close", "close", "top", etc. This spatial relative relationship term is intended to include different orientations of the mechanism in use or operation in addition to those depicted in the drawings. For example, if the mechanism in the figure is reversed, the elements described as "under other elements or features" or "under other elements or features" will then be oriented as "above other elements or features" or "above other elements or features". Thus, the example term "below" may include an upper and a lower orientation. The mechanism may be additionally oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein are interpreted accordingly.

Fig. 1 is the structural schematic diagram of the track saw according to one embodiment of the utility model, Fig. 2 is the structural schematic diagram of the track saw shown in Fig. 1 after the saw blade is removed, Fig. 3 is the assembly structural schematic diagram of the blade following mechanism and the saw blade according to one embodiment of the utility model, and Fig. 4 is the structural schematic diagram of the blade following mechanism according to one embodiment of the utility model.

As shown in Fig. 1 to Fig. 4, according to the embodiment of the utility model, the first aspect of the utility model provides a tool following mechanism for a rail saw 10. The rail saw 10 includes a head shell 13, the saw blade 11 of the rail saw 10 is pivotally arranged on the head shell 13 through a pivot shaft 12, and the tool following mechanism includes a tool following bracket 22 sleeved outside the pivot shaft 12 and located between the saw blade 11 and the head shell 13, The blade following bracket 22 is pivotally sleeved outside the pivot shaft 12 and a pair of blade following plates 23 are provided at the positions where the blade following bracket 22 extends out of the saw blade 11. The pair of blade following plates 23 are respectively provided at the positions close to the saw blade 11 on both sides of the saw blade 11. The first ends of the pair of blade following plates 23 are provided on the blade following bracket 22 through the connecting shaft, and the second ends of the pair of blade following plates 23 extend in the direction of the saw blade 11, The side of the pair of blade following plates 23 facing the saw blade 11 is an arc-shaped structure matching the contour of the saw blade 11. In the utility model, the blade following bracket 22 is pivotally sleeved outside the pivot shaft 12. When the rail saw 10 is in an idle state or the saw blade 11 is replaced, the blade following bracket 22 can rotate to position the pair of blade following plates 23 at an appropriate position, such as a position where the pair of blade following plates 23 are retracted above the bottom plate 14, so as to facilitate the operator to replace the saw blade 11 or place the rail saw 10. Further, the tool following mechanism further includes a link 21, one end of the link 21 is pivotally arranged on the head case 13, the other end of the link 21 is slidably arranged on the first slide groove 221 on the tool following bracket 22, the link 21 is provided with a first lug 211, the tool following bracket 22 is provided with a second lug 223, one end of the link spring 24 is connected to the first lug 211, and the other end of the link spring 24 is connected to the second lug 223, When the tool following mechanism is in the working state, the link spring 24 is in the stretched state, and the link 21 and the link spring 24 can reduce the rotation of the tool following bracket 22 and the pair of tool following plates 23. When the rail saw 10 is in the idle state or the saw blade 11 is replaced, the pair of tool following plates 23 can be retracted by applying an upward thrust to them. Meanwhile, the link spring 24 is in the stretched state, and when the thrust acting on the pair of tool following plates 23 disappears, The link spring 24 can drive the tool following bracket 22 and the pair of tool following plates 23 to move downward and return to the initial position to ensure the normal use of the pair of tool following plates 23 during the cutting process.

As shown in Fig. 1 to Fig. 4, according to the embodiment of the utility model, the tool following bracket 22 is also provided with a second slide groove 222, and the head case 13 is provided with a slide bar penetrating through the second slide groove 222. The second slide groove 222 and the first slide groove 221 are arc-shaped slide grooves. Therefore, when the tool following bracket 22 rotates along the pivot shaft 12, the second slide groove 222 and the slide bar can constrain the rotation path of the tool following bracket 22, so that the tool following bracket 22 and the pivot shaft 12 are in uniform contact, So as to reduce the phenomenon of uneven force on the heel bracket 22 or the pivot shaft 12.

Referring to Fig. 1 to Fig. 4, according to the embodiment of the utility model, the second aspect of the utility model provides a rail saw 10. The rail saw 10 includes a head case 13 and a saw blade 11 arranged on the head case 13. The rail saw 10 also includes a blade following mechanism arranged on the head case 13 and close to the saw blade 11. The blade following mechanism is the blade following mechanism for the rail saw 10 according to the first aspect of the utility model. Therefore, The track saw 10 of the utility model has all the technical effects of the tool following mechanism of the utility model, and will not be repeated here.

The above is only the preferred embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any change or replacement that can be easily thought of by any person skilled in the art within the technical scope disclosed by the utility model shall be covered by the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the protection scope of the claims.