Radial drill with drill bit convenient to replace

Abstract

The utility model relates to the technical field of radial drills, and discloses a radial drill with a drill bit convenient to replace, which comprises the drill bit, a spindle box and a drill bit fixing device, the cavity is formed in the inner side wall of the threaded sleeve; the screw rod penetrates through the cavity, and the screw rod is in threaded connection with the threaded sleeve; the fixing block is rotationally connected to the end, located in the cavity, of the lead screw; the rotary knob is fixedly connected to the end, located outside the threaded sleeve, of the lead screw. The fixing hole is formed in the outer side wall of the drill bit. When the drill bit needs to be replaced, the drill bit needing to be replaced is installed at the bottom of the threaded sleeve through threads, after the drill bit is rotated to the topmost portion, the rotary knob is rotated reversely, at the moment, the lead screw drives the fixing block to move towards the middle of the threaded sleeve, the fixing block is inserted into the fixing hole, the fixing block limits the drill bit, and the drill bit cannot rotate in the threaded sleeve; therefore, the stability of the fixed drill bit is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of radial drilling machine, concretely to a radial drilling machine convenient to replace drill bit. BACKGROUND

[0002] Radial drilling machine is a kind of hole processing equipment, mainly used for drilling, reaming, reaming, tapping and scraping end face and various forms of processing. The characteristics of radial drilling machine are that the rocker arm can rotate around the column and lift, and the spindle box moves horizontally on the rocker arm, which makes it very convenient when processing large and heavy workpieces.

[0003] The existing radial drilling machine needs to replace the drill bit when using to meet different drilling requirements, but the existing radial drilling machine is connected with the drill bit by thread, and the drill bit and the radial drilling machine are easy to loosen when the drill bit rotates, thereby affecting the stability of the drill bit after connection. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the defects of the prior art, the utility model provides a radial drilling machine convenient to replace drill bit, which has the advantages of convenient drill bit fixing, solves the problem that the existing radial drilling machine is connected with the drill bit by thread, the drill bit is easy to loosen when rotating, and the stability of the drill bit after fixing is affected.

[0006] (II) technical scheme

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a radial drilling machine convenient to replace drill bit, comprising a main body assembly, the main body assembly comprises:

[0008] Radial drilling machine body, the main shaft box is movably connected on the radial drilling machine body;

[0009] Threaded sleeve, set up in the main shaft box bottom;

[0010] The threaded sleeve is provided with a fixing assembly, and the fixing assembly comprises:

[0011] Drill bit, threaded connection in the main shaft box bottom;

[0012] Cavity, open in the inner wall of the threaded sleeve;

[0013] Lead screw, through the cavity, the lead screw is connected with the threaded sleeve by thread;

[0014] Fixed block, rotationally connected to one end of the lead screw inside the cavity;

[0015] Knob, fixedly connected to one end of the lead screw outside the threaded sleeve;

[0016] The fixed hole is arranged on the outer wall of the drill bit.

[0017] Preferably, the fixing assembly is symmetrically provided with multiple groups except the drill bit, and at least two groups are provided.

[0018] Preferably, the top and the bottom of the fixing block are symmetrically and fixedly connected with sliding blocks, and the top and the bottom of the cavity are both provided with sliding grooves, and the sliding blocks are slidably connected in the sliding grooves.

[0019] Preferably, the end of the fixing block away from the screw rod is sleeved with an antiskid pad.

[0020] Preferably, the outer part of the knob is provided with an antiskid pattern.

[0021] Preferably, the threaded sleeve is provided with a guiding assembly on the drill bit, and the guiding assembly comprises:

[0022] The guiding frame is fixedly connected to the bottom of the threaded sleeve.

[0023] The movable frame is arranged in the guiding frame.

[0024] The through groove is symmetrically arranged in the bottom of the guiding frame, and the through groove and the movable frame are mutually penetrated.

[0025] The guiding blocks are symmetrically and fixedly connected to the outer wall of the drill bit.

[0026] (Three) beneficial effects

[0027] Compared with the prior art, the utility model provides a rocking arm drill convenient for replacing drill bits, which has the following beneficial effects:

[0028] The rocking arm drill has the advantages that the drill bit is convenient to fix, when the drill bit needs to be replaced, the drill bit to be replaced is installed at the bottom of the threaded sleeve through the thread, the drill bit is rotated to the top, the knob is reversely rotated, the fixing block is driven by the screw rod to move to the middle of the threaded sleeve, the fixing block is inserted into the fixed hole, the fixing block limits the drill bit, the drill bit cannot rotate in the threaded sleeve, and the stability of the fixed drill bit is improved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structural schematic view of the utility model;

[0030] Figure 2 It is a structural schematic view of the drill bit in the utility model;

[0031] Figure 3 It is a front view of the threaded sleeve in the utility model;

[0032] Figure 4 It is fixed block and anti -skid pad structure schematic view in the utility model.

[0033] In the drawing:

[0034] 1, main component;11, radial drill body;12, spindle box;13, threaded sleeve;

[0035] 2, fixed component;21, drill bit;22, cavity;23, screw;24, fixed block;241, sliding block;242, sliding slot;25, knob;251, anti -skid pattern;26, fixed hole;27, anti -skid pad;

[0036] 3, guide assembly;31, guide frame;32, movable frame;33, through slot;34, guide block. DETAILED DESCRIPTION

[0037] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0038] Embodiment one

[0039] Referring to Figures 1-4 A radial drill convenient for replacing drill bit, including main component 1, the main component 1 includes: radial drill body 11, which is movably connected with spindle box 12;Threaded sleeve 13 is arranged at the bottom of the spindle box 12;The threaded sleeve 13 is provided with fixed component 2, the fixed component 2 includes: drill bit 21, which is threadedly connected to the bottom of the spindle box 12;Cavity 22 is opened in the inner wall of the threaded sleeve 13;Screw 23 penetrates the cavity 22, and the screw 23 is threadedly connected with the threaded sleeve 13;Fixed block 24 is rotatably connected to one end of the screw 23 inside the cavity 22;Knob 25 is fixedly connected to one end of the screw 23 outside the threaded sleeve 13;Fixed hole 26 is opened in the outer wall of the drill bit 21. The fixed component 2 is symmetrically provided with multiple groups except the drill bit 21, and at least two groups are provided. The top and bottom of the fixed block 24 are symmetrically fixedly connected with sliding block 241, the top and bottom of the cavity 22 are provided with sliding slot 242, and the sliding block 241 is slidably connected in the sliding slot 242.

[0040] When the worker needs to replace the drill bit 21, first, turn off the power of the radial drill body 11, and then rotate the knob 25, which drives the screw rod 23 to rotate, and the fixed block 24 is extracted from the fixed hole 26 and retracted into the cavity 22, thereby releasing the limitation of the drill bit 21, and then rotating the drill bit 21, and then the drill bit 21 is removed from the bottom of the threaded sleeve 13, and the drill bit 21 to be replaced is installed at the bottom of the threaded sleeve 13 through the thread, and then the drill bit 21 is rotated to the top, and then the knob 25 is rotated in the opposite direction, at this time the screw rod 23 drives the fixed block 24 to move to the middle of the threaded sleeve 13, and the fixed block 24 is inserted into the fixed hole 26, thereby limiting the drill bit 21 in the threaded sleeve 13, so that the stability of the drill bit 21 after being fixed is increased.

[0041] The plurality of fixed assemblies 2 arranged in groups can limit the drill bit 21 from all sides, thereby further increasing the stability of the drill bit 21 during the operation of the radial drill body 11. When the fixed block 24 moves, the external sliding block 241 slides in the sliding groove 242, and the sliding block 241 and the sliding groove 242 guide and limit the movement of the fixed block 24, thereby increasing the stability of the fixed block 24 during movement, and facilitating timely and accurate insertion into the fixed hole 26 to limit the drill bit 21.

[0042] The above-mentioned radial drill body 11 and the spindle box 12 are prior art, and the radial drill body 11 mainly comprises a base, a column, a rocker, a spindle workpiece table and the like. When the radial drill body 11 works, the rocker can rotate around the column, and the spindle box 12 can move radially on the rocker. In this way, the drill bit 21 can be aligned with the axis of each hole to be machined, so as to machine the hole. The specific structure is not described here.

[0043] Embodiment two

[0044] According to the basis of embodiment one, an auxiliary function is added.

[0045] Referring to Figures 1-4 , the end of the fixed block 24 away from the screw rod 23 is sleeved with an anti-skid pad 27. The outer part of the knob 25 is provided with an anti-skid pattern 251. The threaded sleeve 13 and the drill bit 21 are provided with a guide assembly 3, and the guide assembly 3 comprises: a guide frame 31 fixedly connected to the bottom of the threaded sleeve 13; a movable frame 32 opened in the inside of the guide frame 31; a through slot 33 symmetrically opened at the bottom of the guide frame 31, the through slot 33 and the movable frame 32 are mutually penetrated; and guide blocks 34 symmetrically and fixedly connected to the outer side wall of the drill bit 21.

[0046] When the fixing block 24 is inserted into the fixing hole 26, the anti-skid pad 27 is in contact with the inner side wall of the fixing hole 26, the anti-skid pad 27 is used to increase the friction between the fixing block 24 and the fixing hole 26, and the limiting effect of the fixing block 24 on the drill bit 21 is further enhanced. The anti-skid lines 251 on the outside of the knob 25 increase the friction between the hands of the staff and the knob 25 when the staff rotates the knob 25, so that the rotation of the knob 25 is more quick and labor-saving. When the drill bit 21 is installed, the guide assembly 3 facilitates the alignment of the drill bit 21 and the threads on the threaded sleeve 13: before the drill bit 21 is installed, the staff aligns the guide block 34 with the through slot 33, inserts the guide block 34 into the movable frame 32 through the through slot 33, at this time, the external threads of the drill bit 21 and the threaded sleeve 13 are in corresponding positions with each other, and the installation of the threaded sleeve 13 and the drill bit 21 can be realized by directly rotating the drill bit 21, the guide block 34 moves in the movable frame 32 when the drill bit 21 rotates, and it is not necessary to compare the threaded sleeve 13 and the drill bit 21 for many times, so that the convenience of the staff when replacing the drill bit 21 is increased.

[0047] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A radial drill facilitating replacement of drill bits, comprising a main body assembly (1), the main body assembly (1) comprising: a radial drill body (11) having a main shaft box (12) movably connected thereto; a threaded sleeve (13) disposed at the bottom of the main shaft box (12); characterized in that the threaded sleeve (13) is provided with a fixing assembly (2), the fixing assembly (2) comprising: a drill bit (21) threadedly connected to the bottom of the main shaft box (12); a cavity (22) formed in the inner side wall of the threaded sleeve (13); a lead screw (23) penetrating the cavity (22), the lead screw (23) being threadedly connected to the threaded sleeve (13); a fixing block (24) rotatably connected to one end of the lead screw (23) inside the cavity (22); a knob (25) fixedly connected to the other end of the lead screw (23) outside the threaded sleeve (13); a fixing hole (26) formed in the outer side wall of the drill bit (21).

2. The radial drill with easy changeable drill bits according to claim 1, characterized in that: The fixing assembly (2) is symmetrically provided with multiple groups except the drill bit (21), and at least two groups are provided.

3. A radial drill with easy change of drill bits according to claim 2, characterized in that: The fixing block (24) is symmetrically provided with a sliding block (241) at the top and the bottom, and the cavity (22) is provided with a sliding groove (242) at the top and the bottom, the sliding block (241) being slidably connected to the sliding groove (242).

4. A radial drill with easy change of drill bits according to claim 3, characterized in that: A non-slip pad (27) is sleeved on the end of the fixing block (24) away from the lead screw (23).

5. A radial drill with easy change of drill bits according to claim 4, characterized in that: The knob (25) is provided with anti-slip lines (251) on the outside.

6. A radial drill with easy change of drill bits according to claim 5, characterized in that: The threaded sleeve (13) and the drill bit (21) are provided with a guide assembly (3), the guide assembly (3) comprising: a guide frame (31) fixedly connected to the bottom of the threaded sleeve (13); a movable frame (32) formed in the guide frame (31); a through slot (33) symmetrically formed in the bottom of the guide frame (31), the through slot (33) and the movable frame (32) being mutually penetrated; guide blocks (34) symmetrically and fixedly connected to the outer side wall of the drill bit (21).

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