CN2290437Y - Jigsaw machine with tiltable table and stops for selected angular positions - Google Patents

Abstract

The utility model relates to a jigsaw, which is provided with a tiltable worktable and can carry out backstop on the angle position of the selected worktable. Comprising a frame, an axially elongated saw blade supported on the frame, a work surface pivotally mounted on the frame and abutting the saw blade. The working surface can be axially angularly adjusted relative to the blade so that the blade can saw a workpiece on the working surface at various angles. An angle adjustment member is provided between the table and the frame, and a stop surface on the member engages the adjacent stop member upon pivotal movement of the member to stop the angle adjustment member and the table at various angular positions relative to the saw blade.

Description

Jigsaw machine with tiltable table and stops for selected angular positions

The utility model relates to a saw machine equipment, more precisely, relates to a curve saw machine with a tiltable workbench and a stopper for a selected angle position.

The traditional jigsaw machine includes a base supporting the frame of the saw mechanism, a motor is installed on the base, the motor is connected to the saw blade through a transmission device, and there is also a workbench, which has a flat work surface for supporting the workpiece. The table is installed on the frame in a pivotal manner, and the worktable can be tilted relative to the saw blade to saw workpieces from different angles. An angle adjustment component is installed between the workbench and the frame for adjusting the angle position of the workbench relative to the saw blade. A scale is arranged on the front of the adjustment component, and a pointer is arranged at a position adjacent to the scale to indicate the angular position of the workbench. The angle adjustment member is provided with an arc-shaped slot hole, and an adjustment button passes through the slot hole and is fixed on the frame in a threaded manner. Rotate the adjustment button to make it engage with the angle adjustment member, and the blade can be fixed relative to the saw blade. Adjust the angular position of components and workbenches.

The disadvantage of this kind of jigsaw machine is that the operator must stare at the pointer and the scale to ensure that the pointer is aligned with the scale of the scale before setting the workbench at the desired angular position. If there is a mistake, it will lead to the scrapping of the finished product. In addition, it is quite time-consuming to visually align the pointer and the correct scale scale, and then lock the workbench at the desired angle position.

The purpose of this utility model is to design a jigsaw machine with a tiltable workbench and a stopper for a selected angular position, so that the workbench can be tilted at various angles relative to the axial direction of the saw blade to saw the workpiece, and The angle selection operation is fast and convenient, and it has the function of blocking and positioning the workbench.

The utility model has a tiltable workbench and a jigsaw machine with a stop for a selected angular position, including a frame, and an axially elongated saw blade supported on the frame is pivotally mounted on the frame and adjacent to the saw blade. The working surface of the sheet, characterized in that:

It also includes an angle adjustment member and a stop member, the angle adjustment member is connected between the working surface and the frame, and the angle adjustment member is provided with more than one stop surfaces with angular intervals from each other, and the stop member is set On the frame and adjacent to the angle adjustment member, a stop member is engageable with either stop surface.

The stop surface of the angle adjustment member is an arc-shaped notch.

The angle adjusting member is provided with an arc edge, and the stop surface is arranged on the arc edge.

Also included is a biasing member that urges the stop member into engagement with the stop surface of the angle adjustment member, the biasing member being connected to the stop member.

Said biasing member is a coil spring.

The stop member is provided with an arc-shaped surface engaged with the angle adjustment member, and the arc-shaped surface cooperates with the stop surface.

The stop surface of the angle adjustment member is concave, and the arc surface of the stop member is convex.

The two sides of the working surface are inclined up and down from the 0 degree plane around the pivot axis, including 15 degrees, 30 degrees and 45 degrees.

It also includes a scale scale and a scale index indicating the angular position of the working surface on the scale scale. The scale scale is set on the angle adjustment member, and the scale scale is adjacent to the scale scale.

It also includes an adjustment handle for locking and positioning the angle adjustment member and the workbench, which is connected between the angle adjustment member and the frame, and can be engaged with the angle adjustment member.

Below in conjunction with embodiment and accompanying drawing, further illustrate the technology of the present utility model.

Fig. 1, the three-dimensional structure schematic diagram of the curve saw machine of the present utility model;

Fig. 2, the utility model curve saw machine left view structure diagram;

Fig. 3. Structural schematic diagram of the front view of the curve saw machine of the present utility model;

Fig. 4 is a three-dimensional exploded structure diagram of the workbench stop mechanism of the jig saw machine of the present invention.

Referring to Fig. 1 and Fig. 2, the jigsaw machine 10 has a saw frame 12, the saw blade 14 is supported on the frame for sawing the workpiece W (shown by the dotted line in Fig. 1), and the workbench 16 is provided with a substantially flat working surface 18 For supporting workpieces, table 16 is pivotally mounted on the frame. Both sides of the workbench and the work surface extend transversely to the left and right sides of the frame respectively.

As shown in Figure 3, the left and right sides of the workbench are based on a 0-degree plane that is generally perpendicular to the axial direction of the saw blade 14, and are inclined toward the upper and lower directions of the plane. The inclination in the down-tilt section of approximately 45 degrees orients the table and workpiece in an inclined position at several angles relative to the saw blade.

In FIG. 1 , the frame 12 includes a first frame segment 20 and a second frame segment 22 fixed to the first frame segment by a plurality of bolts 24 to form a hollow frame assembly for installing other components of the jigsaw machine 10. . The frame assembly includes a lower strut 26, an upper strut 28 extending above and spaced from and parallel to the lower strut, and a rear strut 30 extending between the upper and lower struts. The base 32 of the frame is secured to the underside of the lower leg 26 to support the miter saw on a suitable support surface.

As shown in Figure 2, the workbench 16 is mounted on the front pivot seat 36 provided on the first frame section 20 by the first bolt 34 in a pivotable manner, and is mounted on the second frame section 22 by the second bolt 38. On the rear pivot seat 40 provided above. The workbench 16 includes a rear mounting flange 41 for accommodating the second bolt 38, and an assembly 42 of a coil spring and a washer is provided between the second bolt 38 and the rear mounting flange 40 for adjusting the pair of bolts. The frictional force exerted by the worktable is used to adjust the frictional resistance of the worktable to the pivoting movement.

Referring to FIG. 3 , the front and rear pivot seats 36 and 40 form a pivot A, and the workbench 16 and the work surface 18 can incline around the pivot and take the 0 degree plane as the criterion toward the upper and lower directions of the plane.

As shown in Figure 4, the motor 44 is fixed on the lower pillar 26 and the base 32 of the frame by bolts 46, and the motor 44 includes a rotating driven shaft 48 (pivot or motor shaft B), in order to reduce noise and noise during operation. To reduce vibration, the motor shaft B is preferably arranged parallel to and aligned with the pivot A of the worktable 16. In addition, the axial directions of the motor shaft B, the pivot A and the saw blade 14 are substantially on the same plane.

The jigsaw machine 10 includes a position locking device for locking the working surface 18 relative to the saw blade 14 (and the 0 degree plane), as shown in FIGS. 3 and 4 . Angle adjustment member 50 is attached to the bottom side of table 16 by bolt 51 ( FIG. 4 ), and is attached to the front of frame 12 by adjustment handle or knob 52 . An arc-shaped slot 54 is disposed on the angle adjusting member 50 for accommodating a threaded end of the adjusting button 52 . As shown in Figure 4, the adjustment knob 52 is threadedly connected to a raised ornament 56 located on the front side of the lower pillar 26, and a gasket 58 is additionally provided between the adjustment knob and the angle adjustment member, and the rotation adjustment knob 52 is engaged with the spacer and the angle adjustment member to lock the angle adjustment member, thereby positioning the angular position of the workbench. If the adjustment knob is rotated to disengage from the angle adjustment member, it can be released and the angle position of the workbench can be adjusted.

The miter saw machine 10 also includes a device that can stop the working surface 18 at several selected angular positions relative to the saw blade 14 (and the 0-degree plane), for coordinating the pivotal movement of the working surface, thereby making it easy to move the working surface. The face is set at the desired angular position. As shown in Figure 2, the frame 12 is provided with a stop member 60 below the angle adjustment member 50, and is also provided with a device that can force (or urge) the stop member to bias to engage with the angle adjustment member, so that at a selected The angular position blocks the adjustment member and the working surface. The biasing device includes a helical spring 62, which is located between the stop member 60 and the support flange 64 provided on the front of the lower pillar 26 of the frame, and is used to force the stop member to bias into engagement with the lower edge of the angle adjustment member. . In practice, those skilled in the art can use various means to force the blocking member to bias into engagement or contact.

As shown in FIG. 3, the angle adjustment member 50 is provided with a plurality of stop surfaces 66, each stop surface is spaced at a certain angle from each other at the lower edge of the angle adjustment member, and is defined relative to the saw blade 14 (and the 0 degree plane). A corresponding position on the working surface, in the present embodiment, each stop surface 66 is formed by a notch, and the arc shape of each notch is roughly consistent with the arc shape of the free end of the stop member 60 (see Fig. 2 ), so as to accommodate stop member. The free end of the stop member 60 is preferably hemispherical or convex, and each notch 66 is preferably concave for accommodating the stop member.

As the table 18 is tilted upward or downward relative to the 0 degree plane, the lower edge of the adjustment member 50 slides into engagement with the stop member 60, which gradually engages the stop surfaces 66. When the stop member is pressed by the coil spring to engage the stop surface of each notch, a "click" sound will be issued to inform the operator that the table is in the angular position, and then the operator can continue to tilt the table until it stops The member engages the desired stop surface, or until the table is otherwise at the desired angle.

Since the stop member 60 engages with each notch 66 by frictional force to stop or restrain the movement of the adjustment member, the workbench can be set at a selected angular position, but the stop member cannot be interlocked with the notch , and other factors cannot hinder the pivotal movement of the workbench when engaging with the notch, so the shape of the stop member and the notch is preferably circular. After the angular position of the workbench is set, the adjustment knob 52 can be rotated to engage with the washer 58 and the adjustment member 50 to lock and position the workbench.

In this embodiment, the angles between the notches are about 15 degrees, and based on the 0 degree plane, 0 degrees and 15, 30, 45 degrees to the left and to the right can be preset. Notches can also be added or removed as necessary to change the selected angular position. Various structures can be used to set the workbench at a selected angle position during implementation. For example, the stop surface 66 can be a plurality of raised surfaces, and the stop member 60 can also be changed into a notch-shaped surface to accommodate each raised surface, so that the angle adjustment member and the worktable are stopped at a selected angle. Location.

The jigsaw machine 10 also includes a device indicating the angle of the working surface relative to the 0-degree plane (or the axial direction of the saw blade). As shown in FIG. The angle of the table relative to the 0 degree plane. A pointer 68 is attached to the flange 64 by a bolt 70, the pointer is located above the lower edge of the adjustment member 50 and adjacent to the scale of the scale, so that the angle of the table is marked on the scale. As indicated by the pointer 68 and the scale scale, after the angular position of the workbench is set, the adjustment knob 52 can be rotated to engage with the angle adjustment member, thereby locking and positioning the adjustment member and the workbench.

As shown in Figure 3, the left and right sides of the workbench 18 can each be inclined downward from the 0-degree plane in a down-tilt angle section C of about 45 degrees, and can be tilted down in an up-tilt angle section D of about 45 degrees. Slope upwards from 0 degrees. The table 18 can thus be tilted upwards and downwards in the range of the angular sections D and C relative to the 0 degree plane and fixed in an angular position. The angle adjustment range can be increased or decreased as required.

In another patent application of the applicant, a storage chamber (not shown) is also provided in the lower pillar 26 of the frame 12 below the workbench 16 of the saw machine 10 . As shown in FIGS. 1 and 2 , the top cover 72 is pivotally mounted on the base 32 of the frame for opening and closing the storage chamber. Top cover 72 inboards can be provided with some mounting flanges etc., for placing tools such as spare saw blades and wrenches.

The jigsaw machine 10 is also provided with an assembly 74 combining a compression guard plate and a depth scale, and the depth scale indicates the thickness of the workpiece when the bottom surface of the compression guard plate is in contact with the surface of the workpiece. A bracket 80 is installed at the adjacent position between the pillar 28 and the saw blade on the frame, and is used to carry the support rod 76 of the depth scale 78, so that the support rod 76 can be fixed in the bracket in a sliding manner. The lower end of the support rod is fixedly provided with a compression guard 82, and the threaded button 84 passes through the bracket 80 to fix and position the support rod and the compression guard.

The workpiece W is placed on the working surface 18 of the workbench, and the threaded knob 84 is rotated to release the support rod 76, so that the compression guard plate descends and contacts the top surface of the workpiece. When the two are in contact, the indexing edge 54 of the bracket 80 faces The scale value on the depth scale is the thickness of the workpiece. Rotate threaded button 84 then, make it engage with support rod 76 and fix support rod, also fixed and compress guard plate simultaneously, just can do sawing operation.

In Fig. 1, a console 86 is installed on the front end of the upper pillar 28 of the frame, and a control button and a switch for controlling the operation and speed of the motor 44 are arranged on the console. The lamp 88 is used for lighting.

During implementation, multiple changes can also be made, as the workbench is only tilted upwards (downwards) on the basis of the 0 degree plane; the angle adjustment member and the stopper member can also adopt different shapes and combinations thereof.

In the jigsaw machine of the utility model, when the workbench is tilted relative to the saw blade, the stop member first engages with each stop surface, and then the angle adjustment member and the workbench are stopped at selected angles. When the table is set at a selected angular position, the operator does not have to adjust the table by reading a scale or referring to other scales, the stop members will automatically engage the stop surfaces to positively stop the table against each other. Selected angular position, at this time, the blocking member will issue a "click" sound to notify the operator, without having to select the angular position by visual inspection, which is a great advantage of the present invention. Another great advantage of the utility model is that as long as the workbench is tilted to a position close to the pre-selected angle, the operator can roughly set the workbench quickly, and then the operator can make fine adjustments to the workbench with reference to the scale to complete the accurate setting. Certainly.

In the utility model, the scale scale is installed on the angle adjustment part (or the adjacent part), and the scale reflects the angular position of the working surface relative to the 0-degree plane or the axial direction of the saw blade, and the graduation index and scale set at the adjacent position of the scale scale The scale at the alignment place of the ruler indicates the angle value of the working surface relative to the axial direction of the saw blade or the 0-degree plane. The fixed angle position should be 0 degrees and 15, 30, 45 degrees on both sides of the workbench relative to the 0 degree plane, which is easy to identify and has a clear operating effect. In addition, each stop surface is preferably formed by a plurality of notches on the edge of the angle adjustment member as a spring (or similar biasing member) within the stop member urges it into engagement with the lower edge of the angle adjustment member forming the stop surface, The arc defined by each notch cooperates with the arc of the stop member to form a stop function. It has practical features such as simple structure, easy manufacture, fast operation and accuracy.

Claims (10)

1. A jigsaw machine with a tiltable worktable and a stopper for a selected angular position, characterized in that the jigsaw machine with a tiltable worktable and a stopper for a selected angular position includes a frame supported on the frame An axially elongated saw blade pivotally mounted on a frame and adjacent a working face of the saw blade, characterized in that: It also includes an angle adjustment member and a stop member, the angle adjustment member is connected between the working surface and the frame, and the angle adjustment member is provided with more than one stop surfaces with angular intervals from each other, and the stop member is set On the frame and adjacent to the angle adjustment member, a stop member is engageable with either stop surface. 2. The jigsaw machine with a tiltable worktable and a stop for a selected angular position according to claim 1, wherein the stop surface of the angle adjustment member is an arc-shaped notch. 3. The jigsaw machine with a tiltable workbench and a stop for a selected angular position according to claim 1, wherein said angle adjustment member is provided with an arc-shaped edge, and said stop surface Set on curved edges. 4. The jigsaw machine having a tiltable table and a stop for a selected angular position as recited in claim 1, further comprising a bias that urges the stop member to engage the stop surface of the angle adjustment member component, and the biasing component is connected with the stop component. 5. The jigsaw machine with a tiltable table and a stop for a selected angular position according to claim 4, wherein said biasing member is a coil spring. 6. The jigsaw machine with a tiltable workbench and a stop for a selected angular position according to claim 1, wherein the stop member is provided with an arc that engages with the angle adjustment member surface, and the arc-shaped surface cooperates with the stop surface. 7. The jigsaw machine with a tiltable workbench and a stop for a selected angular position according to claim 6, wherein the stop surface of the angle adjustment member is concave, and the stop member The curved surface of is convex. 8. The jigsaw machine with a tiltable workbench and stoppers for selected angular positions according to claim 1, characterized in that: the two sides of the working surface are centered on the pivot axis from the 0 degree plane up and down Tilt, including 15 degrees, 30 degrees, 45 degrees. 9. The jigsaw machine with a tiltable workbench and a stopper for a selected angular position according to claim 1, characterized in that it also includes a scale and a point indicating the angular position of the working surface on the scale. The scale index, the scale scale is set on the angle adjustment member, and the scale scale is set adjacent to the scale scale. 10. The jigsaw machine with a tiltable workbench and a stopper for a selected angular position according to claim 1, further comprising an adjustment handle for locking and positioning the angle adjustment member and the workbench, connected to It is arranged between the angle adjustment member and the frame, and can be engaged with the angle adjustment member.

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