Hard alloy threaded handle lengthened double-edge-strip inner-cooling drill bit

Abstract

The utility model relates to the technical field of hard alloy drill bits, in particular to a hard alloy threaded handle lengthened double-edged inner-cooling drill bit which comprises a drill bit body, a rotary knob is installed at the right end of the drill bit body, a threaded handle is installed at the right end of the rotary knob, an installation ring groove is formed in the right side of the rotary knob, and a rubber ring is connected to the inner wall of the installation ring groove in an inserted mode. Two inserting blocks are mounted on the left side of the rubber ring, and clamping grooves are formed in the sides, close to each other, of the inserting blocks on the upper side and the lower side; the device has the beneficial effects that the rotary knob is rotated to drive the threaded handle to be in threaded connection with the drilling machine mounting hole, in the process, the rubber ring is synchronously inserted into the inner wall of the mounting hole, and meanwhile the rubber ring is arranged on the outer side of the threaded handle in a sleeving mode and attached to the threaded handle, so that the rubber ring is in a deformation state in the mounting process; the friction force between the threaded handle and the mounting hole is effectively increased, so that the stability of the drill bit after mounting can be improved, and the drill bit is effectively prevented from being separated from a drilling machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to hard alloy drill bit technical field, concretely is hard alloy screw handle lengthened double edge area inner cooling drill bit. BACKGROUND

[0002] Drill bit is a kind of tool for drilling on hard material or workpiece surface, it is usually made of cutting tool, with one or more cutting edges, can carry out cutting on workpiece by rotating mode, drill bit is usually made of hard alloy to improve hardness and wear resistance, in addition, some drill bits adopt double edge area design to improve cutting efficiency and stability, in addition, part of drill bit is designed with cooling liquid channel inside to reduce tool working temperature, thereby prolonging service life, and drill bit is generally clamped by drilling machine when installation, to facilitate subsequent processing use.

[0003] In prior art, traditional drill bit is usually fixed by the clamping device of drilling machine when installation, this mode can improve installation efficiency and facilitate operator use, however, with the increase of use time, clamping mechanism can vibrate, which can affect the cutting quality of drill bit, and the existing drill bit is usually connected and installed with drilling machine through the threaded column at one end, under high-strength operation condition, threaded column and drilling machine are not fully fixed, and loosening phenomenon can occur, leading to drill bit falling off from drilling machine, thereby reducing the stability of drill bit and affecting normal use.

[0004] Therefore, hard alloy screw handle lengthened double edge area inner cooling drill bit is needed to solve the problem that the existing drill bit is prone to loosening and falling off from drilling machine when installation, thereby affecting the stability of drill bit. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing hard alloy screw handle lengthened double edge area inner cooling drill bit to solve the problem proposed in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: hard alloy screw handle lengthened double edge area inner cooling drill bit, including drill bit body, the right end of drill bit body is installed with knob, the right end of knob is installed with screw handle, the right side of knob is equipped with installation ring groove, the inner wall of installation ring groove is inserted with rubber ring.

[0007] Preferably, the left side of rubber ring is installed with two insertion blocks, the side close to the insertion block of upper and lower sides is equipped with clamping groove, the inner wall of clamping groove is inserted with clamping block, the side away from the clamping block of upper and lower sides is installed with moving plate, the inside of knob is equipped with sliding slot two on upper and lower sides.

[0008] Preferably, the moving plate is slidably connected to the inner wall of sliding slot two, and the insertion block on the upper and lower sides is inserted into the right side of the inside of the knob.

[0009] Preferably, sliding grooves are arranged on the inner sides of the knob, and the inner walls of the sliding grooves are slidably connected with limiting plates, and the side of each limiting plate away from the other limiting plate is provided with a button, and the side of each limiting plate close to the other limiting plate is provided with a connecting block.

[0010] Preferably, the side of each connecting block close to the other connecting block is fixedly connected with a moving plate, and the buttons are respectively inserted into the upper and lower sides of the knob, and the close ends of the buttons penetrate through the sliding grooves.

[0011] Preferably, the side of each limiting plate close to the other limiting plate is provided with a reset spring, and the close end of each reset spring is arranged on the inner wall of the sliding groove.

[0012] Preferably, the rubber ring is arranged on the outer side of the left part of the threaded shank, and the inner wall of the rubber ring is attached to the outer side of the threaded shank.

[0013] Compared with the prior art, the hard alloy threaded shank lengthened double-blade drill bit with internal cooling has the following beneficial effects:

[0014] The hard alloy threaded shank lengthened double-blade drill bit with internal cooling provided by the utility model is characterized in that: the threaded shank is provided with a rubber ring, and the rubber ring is arranged on the outer side of the threaded shank and attached to the inner wall of the installation hole of the drilling machine. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the utility model;

[0016] Figure 2 It is a threaded shank structure schematic view of the utility model;

[0017] Figure 3 It is a button structure schematic view of the utility model;

[0018] Figure 4 It is a knob structure schematic view of the utility model;

[0019] Figure 5 It is Figure 4 It is a structure sectional view of A-A in the utility model;

[0020] Figure 6 It is Figure 5 It is an enlarged view of C in the utility model;

[0021] Figure 7 It is a clamping block structure schematic view of the utility model;

[0022] Figure 8 For Figure 4 Structure section view at B-B in the middle;

[0023] Figure 9 Structure diagram of the plug-in block.

[0024] In the figure: 1, drill bit body; 2, knob; 3, threaded handle; 4, button; 5, rubber ring; 6, moving plate; 7, connecting block; 8, sliding groove one; 9, limiting plate; 10, return spring; 11, plug-in block; 12, sliding groove two; 13, clamping block; 14, installation ring groove; 15, clamping groove. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme of the utility model to carry out clearly, completely describe, and the advantage is more clear and obvious, the following will combine the figure to carry out further detailed explanation of the utility model embodiment. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all embodiments, only to explain the embodiments of the utility model, and not for limiting the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor are within the scope of the utility model protection.

[0026] Embodiment one

[0027] Please refer to Figures 1-9 The utility model provides a technical scheme: hard alloy threaded handle lengthens double blade with inner cooling drill bit, including drill bit body 1, the right end of drill bit body 1 is installed with knob 2, the right end of knob 2 is installed with threaded handle 3, the right side of knob 2 is set up with installation ring groove 14, the inner wall of installation ring groove 14 is inserted with rubber ring 5;Rubber ring 5 is set in the left part outside of threaded handle 3, and the inner wall of rubber ring 5 is attached with the outside of threaded handle 3, so that when installing through drill bit body 1, drive rubber ring 5 to be inserted to the inner wall of drill rig's mounting hole with the rotation of threaded handle 3, simultaneously increase the friction between threaded handle 3 and mounting hole through rubber ring 5, and then improve the stability of drill bit body 1 installation.

[0028] First, rotate knob 2 to drive threaded handle 3 to be connected to the inner wall of drill rig's mounting hole, simultaneously drive rubber ring 5 to be inserted to the inner wall of mounting hole, at this time, since rubber ring 5 is set in the left part outside of threaded handle 3, and is attached between threaded handle 3, when threaded handle 3 is installed to a certain position, will let rubber ring 5 be in the shape change state on the inner wall of mounting hole, to increase the friction between threaded handle 3 and drill rig's mounting hole, and then improve the firmness of installation between threaded handle 3 and mounting hole, further improve the stability and use effect of drill bit body 1.

[0029] Embodiment two

[0030] On the basis of embodiment one, in order to realize the rubber ring 5 and the knob 2 between the card, the left side of the rubber ring 5 is provided with two insertion blocks 11, the side close to the upper and lower two insertion blocks 11 is provided with a clamping groove 15, the inner wall of the clamping groove 15 is inserted with a clamping block 13, the side away from the upper and lower two clamping blocks 13 is provided with a moving plate 6, the inner wall of the knob 2 is provided with a sliding groove two 12, the moving plate 6 is slidably connected to the inner wall of the sliding groove two 12, the upper and lower two insertion blocks 11 are inserted into the right side of the inner wall of the knob 2, so that when the insertion block 11 is inserted into the inner wall of the knob 2, the clamping block 13 is inserted into the inner wall of the clamping groove 15, so that the insertion block 11 and the knob 2 are clamped, and then the rubber ring 5 and the knob 2 are clamped, so as to be used later.

[0031] When installing the rubber ring 5, since the left side of the rubber ring 5 is provided with two insertion blocks 11, and the side of the insertion block 11 is provided with a clamping groove 15, when the rubber ring 5 is inserted into the inner wall of the installation ring groove 14 to the left, the two insertion blocks 11 are inserted into the right side of the inner wall of the knob 2, and since the moving plate 6 is slidably connected to the inner wall of the sliding groove two 12, and the side close to the upper and lower two moving plates 6 is provided with a clamping block 13, the clamping block 13 is inserted into the inner wall of the clamping groove 15, and then the clamping block 13 clamps the insertion block 11, so that the rubber ring 5 and the knob 2 are clamped, so as to be disassembled later.

[0032] Embodiment three

[0033] On the basis of embodiment two, in order to realize the rubber ring 5, the inner wall of the knob 2 is provided with a sliding groove one 8, the inner wall of the sliding groove one 8 is slidably connected with a limiting plate 9, the limiting plate 9 plays a limiting role, so as to prevent the button 4 from being pushed out of the knob 2, the side away from the upper and lower two limiting plates 9 is provided with a button 4, and the side close to the upper and lower two limiting plates 9 is provided with a connecting block 7; the side close to the upper and lower two connecting blocks 7 is fixedly connected with the moving plate 6, the upper and lower two buttons 4 are respectively inserted into the upper and lower sides of the knob 2, and the close end is penetrated through the sliding groove one 8, so that by pressing the two buttons 4, the limiting plate 9 is moved, and then the clamping block 13 is separated from the clamping groove 15, so as to disassemble the rubber ring 5.

[0034] When disassembling, since the upper and lower sides of the knob 2 are inserted with the buttons 4, by pressing the two buttons 4, the limiting plate 9 is slid along the inner wall of the sliding groove one 8, and the connecting block 7 is moved synchronously, since the connecting block 7 and the moving plate 6 are fixedly installed, the upper and lower two moving plates 6 are moved towards each other along the inner wall of the sliding groove two 12, and then the clamping block 13 is separated from the clamping groove 15, so as to disassemble and replace the rubber ring 5, after finishing, the rubber ring 5 is reset, and the two buttons 4 are moved away, and the clamping block 13 is inserted into the inner wall of the clamping groove 15 synchronously, so as to continue clamping the insertion block 11, and then the rubber ring 5 is conveniently disassembled.

[0035] Embodiment four

[0036] In order to improve the stability of the rubber ring 5 installation, the side near the upper and lower two side limiting plates 9 is provided with a reset spring 10, and the end near the upper and lower two reset springs 10 is installed on the inner wall of the sliding groove 8, so that the reset spring 10 is used to drive the button 4 to reset, and the clamping block 13 is inserted into the inner wall of the clamping groove 15, thereby facilitating the installation of the rubber ring 5.

[0037] After the rubber ring 5 is installed, when the two buttons 4 are pressed, the limiting plate 9 is pressed, the reset spring 10 on one side of the limiting plate 9 is in a compressed state, and then the two buttons 4 are released, and the limiting plate 9 is driven to move due to the elastic force of the reset spring 10, and the button 4 is reset, thereby driving the clamping block 13 to continue to be inserted into the inner wall of the clamping groove 15, and the elastic force of the reset spring 10 is used to make the clamping block 13 always be inserted into the inner wall of the clamping groove 15, thereby preventing the clamping block 11 from being separated from the knob 2, thereby improving the stability of the rubber ring 5 installation.

[0038] In actual use, first, the knob 2 is rotated to drive the threaded handle 3 to be threadedly connected to the inner wall of the drill mounting hole, and the rubber ring 5 is inserted into the inner wall of the mounting hole, and at this time, the rubber ring 5 is sleeved on the left outer side of the threaded handle 3 and is in close contact with the threaded handle 3, and when the threaded handle 3 is installed to a certain position, the rubber ring 5 is deformed on the inner wall of the mounting hole, thereby increasing the friction between the threaded handle 3 and the drill mounting hole, thereby improving the stability of the threaded handle 3 and the mounting hole, and further improving the stability and use effect of the drill bit body 1.

[0039] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A hard alloy threaded shank lengthened double blade internal cooling drill bit, comprising a drill bit body (1), a knob (2) is installed at the right end of the drill bit body (1), a threaded shank (3) is installed at the right end of the knob (2), characterized in that: The right side of the knob (2) is provided with a mounting ring groove (14), and the inner wall of the mounting ring groove (14) is inserted with a rubber ring (5).

2. The hard metal threaded shank lengthened double blade PDC bit with in-bit cooling according to claim 1, characterized in that: The left side of the rubber ring (5) is provided with two insertion blocks (11), and the side close to the insertion blocks (11) on the upper and lower sides is provided with a clamping groove (15), and the inner wall of the clamping groove (15) is inserted with a clamping block (13), and the side away from the clamping block (13) on the upper and lower sides is provided with a moving plate (6), and the inner wall of the knob (2) on the upper and lower sides is provided with a sliding groove two (12).

3. The hard metal threaded shank lengthened double blade PDC bit with in-bit cooling according to claim 2, characterized in that: The moving plate (6) is slidingly connected to the inner wall of the sliding groove two (12), and the insertion blocks (11) on the upper and lower sides are inserted into the right side of the knob (2).

4. The hard metal threaded shank lengthened double blade PDC bit with in-bit cooling according to claim 2, characterized in that: The inner wall of the sliding groove one (8) is slidingly connected to the inner wall of the sliding groove two (12), and the inner wall of the sliding groove one (8) is slidingly connected to the inner wall of the sliding groove two (12).

5. The hard metal threaded shank lengthened double blade PDC bit with in-bit cooling according to claim 4, characterized in that: The side close to the clamping block (13) on the upper and lower sides is provided with a clamping groove (15), and the side away from the clamping block (13) on the upper and lower sides is provided with a moving plate (6), and the inner wall of the knob (2) on the upper and lower sides is provided with a sliding groove two (12).

6. The hard metal threaded shank lengthened double blade PDC bit with in-bit cooling according to claim 4, characterized in that: The side close to the clamping block (13) on the upper and lower sides is provided with a clamping groove (15), and the side away from the clamping block (13) on the upper and lower sides is provided with a moving plate (6), and the inner wall of the knob (2) on the upper and lower sides is provided with a sliding groove two (12).

7. The hard metal threaded shank lengthened double blade PDC bit with in-bit cooling according to claim 1, characterized in that: The side close to the clamping block (13) on the upper and lower sides is provided with a clamping groove (15), and the side away from the clamping block (13) on the upper and lower sides is provided with a moving plate (6), and the inner wall of the knob (2) on the upper and lower sides is provided with a sliding groove two (12). The rubber ring (5) is sleeved on the left side of the threaded handle (3), and the inner wall of the rubber ring (5) is attached to the outer side of the threaded handle (3).

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