CN220094855U

CN220094855U - Angle deflection device

Info

Publication number: CN220094855U
Application number: CN202320229722.9U
Authority: CN
Inventors: 朱子辰
Original assignee: Qingdao Huabaowei Cnc Technology Co ltd
Current assignee: Qingdao Huabaowei Cnc Technology Co ltd
Priority date: 2023-02-16
Filing date: 2023-02-16
Publication date: 2023-11-28
Anticipated expiration: 2033-02-16

Abstract

The utility model relates to the technical field of woodworking bench saws, in particular to an angle deflection device which comprises a frame, a deflection nut, a locking handle and a screw rod; the saw blade is arranged on the frame, the frame is hinged with the workbench through a hinge shaft, a round hole is formed in the frame, a deflection nut penetrates into the round hole of the frame, the deflection nut can rotate around the axis of the round hole, a screw rod penetrates through the deflection nut to be in threaded connection with the deflection nut, a locking handle also penetrates into the deflection nut to be in threaded fit, the tail end of the locking handle is propped against a jacking pin, the jacking pin is propped against the screw rod, the tail end of the screw rod is arranged together with a bevel gear I through a key and threads, the bevel gear II and the bevel gear I are vertically meshed with each other, and are arranged in a gear seat, and the bevel gear II is connected with a handle shaft; the deflection hand wheel axis and the frame hinge axis are arranged in parallel, and the operation is convenient. The angle between the saw blade and the workbench is convenient to adjust, can be locked at any position between 90 degrees and 135 degrees, and can be rapidly positioned at the two angles.

Description

Angle deflection device

Technical Field

The utility model relates to the technical field of woodworking bench saws, in particular to an angle deflection device.

Background

A woodworking table saw is a common machine in woodworking machines and is a device that pushes wood back and forth on a table to rotate a saw blade to cut the wood.

The included angle between the saw blade and the workbench is the included angle between the two surfaces after the sawing of the wood is finished. For different structures, the angle between the saw blade and the table of the woodworking table saw is required to be 90-135 degrees. The saw blade is arranged on the frame, and the frame is hinged with the workbench. The included angle between the saw blade and the workbench is changed by driving the frame to rotate around the hinge shaft, and the driving mechanism is called a frame deflection angle adjusting mechanism.

To achieve frame deflection, two structures, namely a screw and a worm gear, are commonly used at present. Both mechanisms have in common that the axis of the screw and worm must be arranged perpendicular to the axis of the yaw hinge. As shown in fig. 4, the ends of the screw and the worm are generally provided with a hand wheel which is convenient for a user to rotate, the hand wheel is arranged in front of or behind the workbench, and when an operator performs wood processing, the angle is adjusted and the cutting direction is switched, so that the hand wheel is very inconvenient to use, which is a defect in the prior art.

Disclosure of Invention

The present utility model is directed to an angle deflection device, which solves the problem of inconvenient use in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an angle deflection device comprises a frame, a deflection nut, a locking handle and a screw;

the saw blade is installed above the frame, the frame is articulated with the workstation through the articulated shaft, has the round hole in the frame, and the deflection nut penetrates the round hole of frame, and the deflection nut can rotate around above-mentioned round hole axis, and the screw rod passes deflection nut and spiro union thereof, and locking handle also penetrates deflection nut screw thread fit, and the terminal top of locking handle is on the knock pin, and the knock pin is on the screw rod again, its characterized in that: the tail end of the screw rod is installed with the first bevel gear through a key and threads, the second bevel gear is vertically meshed with the first bevel gear, the second bevel gear and the first bevel gear are installed in the gear seat, and the second bevel gear is connected with the handle shaft.

Preferably, the screw is provided with a limiting nut at the front and rear, two small threaded holes are arranged in the middle of the limiting nut, and the locking screw penetrates into the small threaded holes of the limiting nut.

Preferably, the handle shaft is arranged on the fixing seat through a second bearing in a rotating way, the handle shaft extends to the outside of the protective shell, a third bearing is arranged at the joint of the handle shaft and the protective shell, and a first bearing is arranged at the joint of the tail end of the screw rod and the fixing seat.

Preferably, the deflection nut is stopped when it hits the front and rear limit nuts, and the angle between the saw blade and the table clamp is 90 ° and 135 °.

Compared with the prior art, the utility model has the beneficial effects that:

1) The axis direction of the deflection handle is parallel to the hinge axis of the frame through the meshing of bevel gears.

2) The deflection screw rod is in threaded fit with the deflection nut, so that the deflection action of the driving frame around the hinge shaft is realized.

3) The deflection nut is in threaded fit with the locking handle, when the tail end of the locking handle is propped against the deflection screw rod, the frame is locked, and when the locking handle is loosened, the frame can deflect freely.

4) The limit nut belt top screw can be locked at a proper position. When the deflection nut touches the limit nut to stop and limit, the saw blade and the workbench are rapidly positioned at 90 degrees and 135 degrees.

Drawings

Fig. 1 is a schematic view of an assembly of a screw and a frame.

Fig. 2 is a cross-sectional view of a portion of the structure of fig. 1.

Fig. 3 is another view of fig. 1.

Fig. 4 is a schematic view of the deflection structure axis.

In the figure: a frame 1; 2, deflecting the nut; 3, jacking pins; 4, locking a handle; 5, limiting the nut; 6, locking a screw; 7, a screw rod; 8 saw blades; a protective shell 9; 10 fixing seats; 11 bevel gears I; 12 first bearings; 13, a gear seat; 14 bevel gears II; 15, a second bearing; 16 bearings three; 17 handle shaft; 18 hinge axis.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 4, the present utility model provides a technical solution:

an angle deflection device comprises a frame 1 and a deflection nut 2; a saw blade 8 is arranged on the frame 1, and the saw blade 8 is arranged in a matched manner with the driving motor; the work is realized through motor driving;

the frame 1 is hinged with a workbench through a hinge shaft 18, the workbench is shown in a combined guide rail structure protected by application number 2022232213976 of the applicant, and the structures are all arranged below the workbench and form a bench saw together through corresponding supporting frames;

the frame 1 can rotate around the hinge shaft 18 to change the included angle between the saw blade and the workbench, a round hole is formed in the frame 1, the deflection nut 2 penetrates into the round hole of the frame 1, and the deflection nut 2 can rotate around the axis of the round hole.

The screw rod 7 passes through the deflection nut 2 to be in threaded connection with the deflection nut 2, the locking handle 4 also passes through the deflection nut 2 to be in threaded fit, the tail end of the locking handle 4 is propped against the jacking pin 3, the jacking pin 3 is propped against the screw rod 7 again, when the locking handle 4 is screwed down, the tail end is propped against the jacking pin 3 and then the screw rod 7 is propped against, the screw rod 7 is limited to rotate, and the position of the stand 1 is also locked. When the locking handle 4 is released, the screw rod 7 can rotate, and at this time, the rotation of the screw rod 7 drives the deflection nut 2 to move along the axis direction of the screw rod 7, and then drives the frame 1 to rotate around the hinge shaft 18.

The screw rod 7 is also provided with a limit nut 5 respectively, two small threaded holes are formed in the middle of the limit nut 5, the locking screw 6 penetrates into the small threaded holes of the limit nut 5, when the locking screw 6 is screwed down, the limit nut 5 is locked on the screw rod 7, when the locking screw 6 is loosened, the limit nut 5 can rotate on the screw rod in a restoration mode, the position is adjusted, and therefore the position change of the rotary movement of the screw rod 7 is guaranteed, and the requirement of angle change is met.

The tail end of the screw rod 7 is installed together with the first bevel gear 11 through a key and threads, the second bevel gear 14 is meshed with the first bevel gear 11, the second bevel gear 14 is installed in the gear seat 13, the second bevel gear 14 is connected with the handle shaft 17, and the handle shaft 17 is rotatably arranged on the fixed seat 10 through the second bearing 15 and the third bearing 16; the first bevel gear 11 and the second bevel gear 14 which are matched with each other are arranged at the tail end of the screw rod 7 and are also arranged in the inner cavity of the fixed seat 10, so that meshing can be realized;

the handle shaft 17 is rotatably arranged on the fixed seat 10 through a second bearing 15, the handle shaft 17 extends to the outside of the protective shell 9, a third bearing 16 is arranged at the joint of the handle shaft 17 and the protective shell 9, and a first bearing 12 is arranged at the joint of the tail end of the screw 7 and the fixed seat.

The handle shaft 17 is rotated to drive the bevel gear II 14 to rotate, the bevel gear I11 to rotate, the screw 7 to rotate, and the deflection nut 2 and the frame 1 to rotate around the hinge shaft 18, so that the frame deflection function is realized. When the deflection nut 2 touches the front limit nut and the rear limit nut 5, the limit stop is realized, the clamping angles of the saw blade and the workbench are 90 degrees and 135 degrees, and the rapid positioning function of 90 degrees and 135 degrees is realized.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An angle deflection device comprises a frame (1), a deflection nut (2), a locking handle (4) and a screw (7);

the saw blade (8) is installed on the frame (1), the frame (1) is hinged with the workbench through a hinge shaft (18), a round hole is formed in the frame (1), the deflection nut (2) penetrates into the round hole of the frame (1), the deflection nut (2) can rotate around the axis of the round hole, the screw rod (7) penetrates through the deflection nut (2) to be in threaded connection with the deflection nut, the locking handle (4) also penetrates into the threaded fit of the deflection nut (2), the tail end of the locking handle (4) is propped against the top pin (3), and the top pin (3) is propped against the screw rod (7), and the saw blade is characterized in that: the tail end of the screw rod (7) is installed with the first bevel gear (11) through a key and threads, the second bevel gear (14) and the first bevel gear (11) are vertically meshed with each other and are installed in the gear seat (13), and the second bevel gear (14) is connected with the handle shaft (17).

2. An angular deflection apparatus according to claim 1, wherein: the screw rod (7) is respectively provided with a limiting nut (5) at the front and the back, two small threaded holes are arranged in the middle of the limiting nut (5), and the locking screw (6) penetrates into the small threaded holes of the limiting nut (5).

3. An angular deflection apparatus according to claim 2, wherein: the handle shaft (17) is rotatably arranged on the fixing seat (10) through a second bearing (15), the handle shaft (17) extends to the outside of the protective shell (9), a third bearing (16) is arranged at the joint of the handle shaft (17) and the protective shell (9), and a first bearing (12) is arranged at the joint of the tail end of the screw rod (7) and the fixing seat (10).

4. An angular deflection apparatus according to claim 3, wherein: the deflection nut (2) is stopped when touching the front limit nut (5) and the rear limit nut, and the angle between the saw blade and the workbench clamp angle is 90 degrees and 135 degrees.