CN219325330U - Flat drill with adjustable blade - Google Patents

Abstract

The utility model discloses a flat drill with an adjustable blade, which comprises a flat drill body, wherein the flat drill body is used for installing a drill blade, a drill handle is fixedly arranged on the back surface of the flat drill body, a positioning blade is connected to the inner wall of a connecting groove formed in the front surface of the flat drill body in a penetrating way, an adjusting mechanism is fixedly arranged in the flat drill body, the adjusting mechanism comprises a setting opening formed in one side of the flat drill body, two half gears are rotatably connected to the inner wall of the setting opening, a double rack is connected between the two half gears in a meshed way, a knob is connected to the outer wall of a screw rod in a threaded way, the outer wall of the knob is rotatably connected with the inner wall of an annular groove formed in the outer wall of the drill handle.

Description

Flat drill with adjustable blade

Technical Field

The utility model relates to the field of spade drills, in particular to a spade drill with an adjustable blade.

Background

Flat drills are generally tools for woodworking to drill wood boards and other materials, are commonly used for machining holes with low requirements on precision, and are required to drill through thin plates, and are made of alloy, very hard, and the cutting part of the woodworking flat drill is ground into a flat body.

To this, chinese patent number CN212948289U a spade drill, be convenient for fix a position, fix a position accurate and be convenient for the chip removal, and the drill point of the spade drill of present use is mostly fixed, and interval between the drill point can't be adjusted, when needs change drilling size, only can change the spade drill of different specifications, leads to the suitability of spade drill to reduce, and simultaneously when the blade appears damaging, the blade is inconvenient to change, can influence drilling effect, leads to the spade drill inconvenient to use.

Disclosure of Invention

The present utility model is directed to a spade drill with adjustable blade to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a flat drill with adjustable blade, includes the flat drill body, the flat drill body is used for installing the drill bit blade, the fixed drill shank that is equipped with in back of the flat drill body, the inner wall of the spread groove that the front of the flat drill body was seted up alternates and is connected with the locating blade, the fixed adjustment mechanism that is equipped with in inside of the flat drill body, adjustment mechanism is including setting up the mouth that sets up in flat drill body one side, the inner wall rotation that sets up the mouth is connected with two half gears, two the meshing is connected with double rack between the half gears, the one end of double rack is fixed and is equipped with the lead screw, the outer wall threaded connection of lead screw has the knob, the inner wall rotation of the ring channel that the outer wall of knob and drill shank were seted up is connected, two the inner wall of the connector that one side of half gear was seted up is all alternatingly and is connected with the adjustment sword.

Preferably, the inner wall of the movable groove that the top of regulation sword was seted up is all fixed and is equipped with first spring, the top of first spring is all fixed and is equipped with the fixture block, the outer wall of fixture block all alternates with the inner wall of connector and be connected.

Preferably, the positioning blade is in threaded connection with the flat drill body through an inner hexagon bolt, a movable hole is formed in the drill handle, and the outer wall of the screw rod is connected with the inner wall of the movable hole in a penetrating mode.

Preferably, two moving ports are formed in the top end of the flat drill body, and reset plates are connected to the inner walls of the moving ports in a penetrating mode.

Preferably, a through hole is formed in the top end of the reset plate, and a fixing column is connected to the inner wall of the through hole in a penetrating mode.

Preferably, the bottom of the fixed column is fixedly connected with the flat drill body, and the outer wall of the fixed column is connected with a second spring in a penetrating way.

The utility model has the technical effects and advantages that:

(1) The screw rod is driven to move by rotating the knob, the screw rod drives the double racks to move, the double racks drive the half gears to deflect synchronously, the half gears drive the adjusting blade to deflect simultaneously, the distance between the positioning blade and the adjusting blade is changed, the size of a drilling hole is changed when the flat drill is used, the operation is simple, the adjustment is convenient, and the applicability of the flat drill is improved;

(2) Through pressing the fixture block earlier to adjusting in the sword and remove, make first spring shorten, will adjust the sword and be connected with half gear, press down the power after disappearing, first spring promotes the fixture block card and go into in the connector, restricts the sword to adjusting, later with location sword and flat drill body connection back, rotate hexagon socket head cap screw respectively with flat drill body and location sword be connected, restrict the location sword, the change of the blade of being convenient for guarantees the drilling effect of flat drill.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic diagram of a connection structure of a half gear and a double rack;

fig. 3 is a schematic diagram of a connection structure between a first spring and a clamping block according to the present utility model.

In the figure: 1. a spade drill body; 2. a drill shank; 3. positioning the blade; 4. a setting port; 5. a half gear; 6. double racks; 7. a screw rod; 8. a knob; 9. adjusting the blade; 10. a first spring; 11. a clamping block; 12. an inner hexagon bolt; 13. a reset plate; 14. fixing the column; 15. a second spring; 16. A through hole; 17. and (5) moving the port.

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.

The first practical example is that the utility model provides a flat drill with adjustable blade, as shown in fig. 1-3, comprising a flat drill body 1, wherein the flat drill body 1 is used for installing a drill blade, the back of the flat drill body 1 is fixedly provided with a drill handle 2, the inner wall of a connecting groove formed in the front of the flat drill body 1 is connected with a positioning blade 3 in a penetrating way, an adjusting mechanism is fixedly arranged in the flat drill body 1, the adjusting mechanism comprises a setting opening 4 formed in one side of the flat drill body 1, the inner wall of the setting opening 4 is rotationally connected with two half gears 5, a double rack 6 is meshed and connected between the two half gears 5, one end of the double rack 6 is fixedly provided with a screw rod 7, the outer wall of the screw rod 7 is in threaded connection with a knob 8, the outer wall of the knob 8 is rotationally connected with the inner wall of an annular groove formed in the outer wall of the drill handle 2, and the inner wall of a connecting port formed in one side of the two half gears 5 is in penetrating way connected with an adjusting blade 9;

in practical example two, as shown in fig. 1-3, the inner walls of the movable slots formed in the top ends of the adjusting blades 9 are all fixedly provided with first springs 10, the top ends of the first springs 10 are all fixedly provided with clamping blocks 11, the outer walls of the clamping blocks 11 are all connected with the inner walls of the connecting ports in a penetrating manner, the positioning blades 3 are connected with the flat drill body 1 through inner hexagon bolts 12 in a threaded manner, the movable holes are formed in the drill shank 2, the outer walls of the screw rods 7 are connected with the inner walls of the movable holes in a penetrating manner, the top ends of the flat drill body 1 are provided with two moving ports 17, the inner walls of the moving ports 17 are all connected with reset plates 13 in a penetrating manner, the top ends of the reset plates 13 are provided with penetrating holes 16, the inner walls of the penetrating holes 16 are connected with fixed columns 14 in a penetrating manner, the bottom ends of the fixed columns 14 are fixedly connected with the flat drill body 1, and the outer walls of the fixed columns 14 are connected with second springs 15 in a penetrating manner.

The working principle of the utility model is as follows: the fixture block 11 is pressed firstly to move into the adjusting blade 9, the first spring 10 is shortened, after the adjusting blade 9 is connected with the half gear 5, the pressing force disappears, the first spring 10 pushes the fixture block 11 to be clamped into the connecting port, the adjusting blade 9 is limited, after the positioning blade 3 is connected with the flat drill body 1, the inner hexagon bolt 12 is rotated to be respectively connected with the flat drill body 1 and the positioning blade 3, the positioning blade 3 is limited, when the adjusting blade 9 is replaced, the reset plate 13 is pressed to move on the fixed column 14, the second spring 15 is shortened along with compression, the reset plate 13 is contacted with the fixture block 11 to push the fixture block 11 into the adjusting blade 9 again, the replacement of the blade is facilitated, the drilling effect of the flat drill is ensured, when the drilling size needs to be changed, the rotating knob 8 drives the screw rod 7 to move, the screw rod 7 drives the double rack 6 to move, the double rack 6 drives the half gear 5 to synchronously deflect, the half gear 5 drives the adjusting blade 9 to deflect, the distance between the positioning blade 3 and the adjusting blade 9 is changed, the size of the flat drill is changed when the flat drill is used, the flat drill is easy to operate, the flat drill is convenient to adjust, and the applicability of the flat drill is improved.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Standard parts used by the utility model can be purchased from the market, and special-shaped parts can be customized according to the description of the specification and the drawings.

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 (6)

1. A spade drill with an adjustable blade comprises a spade drill body (1),

the flat drill body (1) is used for installing a drill blade, the back of the flat drill body (1) is fixedly provided with a drill handle (2), the inner wall of a connecting groove formed in the front of the flat drill body (1) is connected with a positioning blade (3) in a penetrating way, the inside of the flat drill body (1) is fixedly provided with an adjusting mechanism,

the method is characterized in that: the utility model discloses a flat drill body, including setting up mouth (4) of setting up in flat drill body (1) one side, the inner wall of setting up mouth (4) rotates and is connected with two half gears (5), two the meshing is connected with double rack (6) between half gears (5), the one end of double rack (6) is fixed to be equipped with lead screw (7), the outer wall threaded connection of lead screw (7) has knob (8), the outer wall of knob (8) rotates with the inner wall of the ring channel of seting up of the outer wall of drill shank (2) to be connected, two the inner wall of the connector of seting up one side of half gears (5) all alternates and is connected with regulation sword (9).

2. A spade drill with adjustable blade according to claim 1, wherein: the adjustable cutting tool is characterized in that a first spring (10) is fixedly arranged on the inner wall of a movable groove formed in the top end of the adjusting blade (9), a clamping block (11) is fixedly arranged on the top end of the first spring (10), and the outer wall of the clamping block (11) is connected with the inner wall of the connecting port in a penetrating mode.

3. A spade drill with adjustable blade according to claim 2, wherein: the positioning blade (3) is in threaded connection with the flat drill body (1) through an inner hexagon bolt (12), a movable hole is formed in the drill handle (2), and the outer wall of the screw rod (7) is connected with the inner wall of the movable hole in a penetrating mode.

4. A spade drill with adjustable blade according to claim 3, wherein: two moving ports (17) are formed in the top end of the flat drill body (1), and reset plates (13) are connected to the inner walls of the moving ports (17) in a penetrating mode.

5. A spade drill with adjustable blade according to claim 4, wherein: a through hole (16) is formed in the top end of the reset plate (13), and a fixing column (14) is connected to the inner wall of the through hole (16) in a penetrating mode.

6. A spade drill with adjustable blade according to claim 5, wherein: the bottom of the fixed column (14) is fixedly connected with the flat drill body (1), and a second spring (15) is connected to the outer wall of the fixed column (14) in a penetrating mode.

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