CN222856805U

CN222856805U - Countersink drill with replaceable guide column

Info

Publication number: CN222856805U
Application number: CN202421439413.5U
Authority: CN
Inventors: 徐腊华; 毕凡
Original assignee: Changzhou Yaoxiang Tools Co ltd
Current assignee: Changzhou Yaoxiang Tools Co ltd
Priority date: 2024-06-24
Filing date: 2024-06-24
Publication date: 2025-05-13
Anticipated expiration: 2034-06-24

Abstract

The utility model belongs to the technical field of drills, and particularly relates to a countersink drill with a replaceable guide post, which aims at the problems that the prior guide post is used for protecting the guide post by arranging a wear-resistant piece, the guide post is fixedly connected with a cutter body, the cutter body is not protected, the service life of the cutter body is always longer than that of the guide post, if the guide post and the cutter body are replaced together, the utilization rate of the cutter body is low, and the cost is increased.

Description

Countersink drill with replaceable guide post

Technical Field

The utility model relates to a countersink drill, in particular to a countersink drill with a replaceable guide post, and belongs to the technical field of drills.

Background

Countersink is the countersink. Also called chamfering tool, chamfering drill, countersink drill, chamfering device, a drill for countersinking a conical countersink. The device can be used for deburring and chamfering the orifice, digging the countersunk pit and has the premise that a guide hole is needed, and the subsequent machining and the taper hole are large in top and small in bottom. And a countersink and a taper hole nest are required to be machined when the taper flat head screw is placed. The orifice trimming and deburring is to lightly trim the orifice edge. The aperture edge corners are removed.

In prior art, as the novel countersink drill that publication number CN214108936U disclosed, including guide pillar, cutter body and handle of a knife, guide pillar and handle of a knife are located the both ends of cutter body, detachably be provided with at least one on the terminal surface of guide pillar, along the wearing part of guide pillar axial arrangement, still include with the wearing part is fixed the mounting on the guide pillar terminal surface, be equipped with the external screw thread on the mounting, be equipped with on the terminal surface of guide pillar with external screw thread complex screw hole. When the countersink drill is used for machining a workpiece, the wear-resistant piece is in contact with the workpiece, so that the guide post is prevented from being in direct contact with the workpiece, friction between the guide post and the workpiece in the machining process is reduced, the machining precision of the workpiece is ensured, the shape precision and the surface quality of the countersink part are improved, and meanwhile, the abrasion of the guide post is avoided.

In the above technical scheme, the guide post is protected by arranging the wear-resisting piece, and the guide post is fixedly connected with the cutter body, so that the cutter body is not protected, the service life of the cutter body is often longer than that of the guide post, if the guide post and the cutter body are replaced together, the utilization rate of the cutter body is lower, and the cost is increased.

Disclosure of utility model

The utility model provides a countersink drill with a replaceable guide post, which aims to solve the problems that the guide post is protected by arranging a wear-resistant part, the guide post is fixedly connected with the cutter body, the cutter body is not protected, the service life of the cutter body is often longer than that of the guide post, and if the guide post and the cutter body are replaced together, the utilization rate of the cutter body is lower, and the cost is increased.

The countersink drill with the replaceable guide post comprises a drill bit, wherein a thread groove is formed in the bottom end of the surface of the drill bit, and four clamping blocks are arranged on the surface of the drill bit;

a clamping groove is formed in the clamping block, a fixed block is fixedly connected in the clamping groove, and a spring block is fixedly connected to one side of the fixed block;

The outside of spring piece is provided with reset spring, is fixed connection between reset spring and the joint piece, and the bottom threaded connection of drill bit has the guide post, and four joint grooves have been seted up to the upper surface of guide post.

As a still further proposal of the utility model, the clamping block is matched with the clamping groove in size, and the surface of the guide post is provided with a chip removal groove.

As a still further scheme of the utility model, the bottom end surface of the guide post is fixedly connected with a clamping block, and the outer side of the clamping block is provided with a clamping seat.

As a still further scheme of the utility model, the left side surface of the clamping seat is connected with a fixing bolt in a threaded manner, one side of the fixing bolt is connected with a bearing, and one side of the bearing is fixedly connected with a left clamping plate.

As a still further proposal of the utility model, screws are arranged on both sides of the fixing bolt, a shock pad is fixedly connected in the clamping seat, a fixing clamping plate is fixedly connected on one side of the shock pad, and a rubber pad is fixedly connected on one side of the fixing clamping plate.

As a still further scheme of the utility model, the bottom end surface of the clamping seat is fixedly connected with a threaded block, the outer side of the threaded block is in threaded connection with a fixed seat, the top end surface of the fixed seat is provided with a limit seat, and the surface of the limit seat is in threaded connection with a fixing screw.

As a still further proposal of the utility model, the bottom end surface of the fixed seat is fixedly connected with a handle, the surface of the handle is fixedly connected with a radiating fin, the bottom end of the handle is fixedly connected with a connecting block, and a fixing screw penetrates through the inside of the limit seat and is in threaded connection with the handle.

The beneficial effects of the utility model are as follows:

1. Through with drill bit and guide post threaded connection, when the drill bit moved to the guide post, pressed the joint piece, make reset spring compression through pressure, let the joint piece contract in the draw-in groove, until reaching the joint inslot that the guide post surface was seted up and carry out the block, be convenient for dismouting change at will, avoid because not carrying out the protection to the cutter body and handle, and the life-span of cutter body often is longer than the life-span of guide post, if guide post and cutter body are together changed, just lead to the utilization ratio of cutter body lower, lead to the problem of cost increase.

2. The fixing bolt and the screw on the left side of the clamping seat are rotated to drive the left clamping plate to move towards the direction of the fixed clamping plate so as to clamp the clamping block, thereby completing the assembly between the guide post and the clamping seat, and facilitating the replacement of the guide post when the guide post is damaged.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the split structure of the drill bit and guide post of the present utility model;

FIG. 3 is a schematic view of the split structure of the device of the present utility model;

fig. 4 is a schematic view of the internal structure of the clamping seat according to the present utility model.

In the figure, 1, a drill bit; 2, a guide post, 3, a chip removal groove, 4, a clamping seat, 5, a limit seat, 6, a handle, 7, a radiating fin, 8, a connecting block, 9, a fixing bolt, 10, a screw, 11, a clamping block, 12, a thread groove, 13, a clamping groove, 14, a clamping block, 15, a fixing screw, 16, a fixing seat, 17, a thread block, 18, a bearing, 19, a left clamping plate, 20, a fixing clamping plate, 21, a rubber pad, 22 and a shock pad.

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.

Example 1

As shown in fig. 1 to 4, a countersink drill with a replaceable guide post comprises a drill bit 1, wherein a thread groove 12 is formed in the bottom end of the surface of the drill bit 1, and four clamping blocks 11 are arranged on the surface of the drill bit 1;

a clamping groove is formed in the clamping block 11, a fixed block is fixedly connected in the clamping groove, and a spring block is fixedly connected to one side of the fixed block;

The outside of spring piece is provided with reset spring, is fixed connection between reset spring and the joint piece 11, and the bottom threaded connection of drill bit 1 has guide post 2, and four joint grooves 13 have been seted up to the upper surface of guide post 2.

Example two

In addition to all the technical features in the first embodiment, the present embodiment further includes:

the clamping block 11 is matched with the clamping groove 13 in size, the chip removal groove 3 is formed in the surface of the guide post 2, and the clamping block 11 and the clamping groove 13 are arranged, so that the connection tightness of the drill bit 1 and the guide post 2 is enhanced.

The bottom end face fixedly connected with grip block 14 of guide post 2, the outside of grip block 14 is provided with grip block 4, and guide post 2 constitutes detachable connection through grip block 14 and grip block 4, when guide post 2 damages, is convenient for change.

The left side threaded connection of grip slipper 4 has fixing bolt 9, and one side of fixing bolt 9 is connected with bearing 18, and one side fixedly connected with left grip block 19 of bearing 18 is convenient for carry out the centre gripping to grip block 14 through rotating fixing bolt 9, and can adjust according to not unidimensional guide post 2, has promoted work efficiency.

Example III

The both sides of fixing bolt 9 all are provided with screw 10, and the inside fixedly connected with shock pad 22 of grip slipper 4, one side fixedly connected with fixed grip block 20 of shock pad 22, one side fixedly connected with rubber pad 21 of fixed grip block 20, reducible certain vibrations through the shock pad 22 that sets up, the setting of two screws 10 is convenient for improve the tightness of device.

The bottom end face fixedly connected with screw thread piece 17 of grip slipper 4, the outside threaded connection of screw thread piece 17 has fixing base 16, and the top face of fixing base 16 is provided with spacing seat 5, and the surface threaded connection of spacing seat 5 has set screw 15, rotates set screw 15, and through setting up fixing base 16 and spacing seat 5, has strengthened the tightness that grip slipper 4 is connected with handle 6.

The bottom end face fixed connection handle 6 of fixing base 16, the fixed surface of handle 6 is connected with fin 7, the bottom fixedly connected with connecting block 8 of handle 6, set screw 15 runs through the inside and the handle 6 threaded connection of spacing seat 5, through scribble one deck heat conduction silicone grease with fin 7 and handle 6 contact surface, make the heat that the device sent more effectively conduct to fin 7, give off in the surrounding air again through fin 7, promoted the life of device.

The working principle is that when the drill bit 1 moves towards the guide post 2, the clamping block 11 is pressed, the reset spring is compressed by pressure, the clamping block 11 is contracted into the clamping groove until the clamping block reaches the clamping groove 13 formed in the surface of the guide post 2, when the clamping state needs to be released, a worker presses the clamping block 11, the clamping block 11 is inwards extruded and compressed into the clamping groove, the thread groove 12 at the bottom end of the drill bit 1 is far away from the guide post 2, the random dismounting and the replacement are convenient, the chip groove 3 is formed in the surface of the drill bit 1, the chip removal is convenient, then the fixing bolt 9 and the screw 10 at the left side of the clamping seat 4 are rotated, the left clamping plate 19 is driven to move towards the direction of the fixing clamping plate 20 under the action of the bearing 18, the clamping block 14 is clamped, so that the assembly between the guide post 2 and the clamping seat 4 is completed, when the guide post 2 is damaged, a certain damping effect can be provided for the worker, the rubber pad 21 arranged can improve the service life of the guide post 2, the damping pad 22 arranged in the clamping seat 4 can be provided, finally the clamping seat 4 is rotated, the screw 17 at the bottom end of the clamping seat 4 is connected with the handle 6 through the thread groove 6 and the screw 6, the screw 15 is further connected with the heat radiation plate 7 through the thread groove 6 and the heat radiation plate 7, the heat radiation plate is further connected with the heat radiation plate 7 through the heat radiation plate, and the heat radiation plate 7 is connected with the heat radiation plate through the heat radiation plate 7, and the heat radiation device through the heat radiation device.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The countersink drill with the replaceable guide post comprises a drill bit (1) and is characterized in that a thread groove (12) is formed in the bottom end of the surface of the drill bit (1), and four clamping blocks (11) are arranged on the surface of the drill bit (1);

a clamping groove is formed in the clamping block (11), a fixed block is fixedly connected to the inside of the clamping groove, and a spring block is fixedly connected to one side of the fixed block;

The outside of spring piece is provided with reset spring, be fixed connection between reset spring and joint piece (11), the bottom threaded connection of drill bit (1) has guide post (2), four joint grooves (13) have been seted up to the upper surface of guide post (2).

2. The countersink drill with the replaceable guide post according to claim 1, wherein the clamping block (11) is matched with the clamping groove (13) in size, and the chip removal groove (3) is formed in the surface of the guide post (2).

3. The countersink drill with the replaceable guide post according to claim 1, wherein the bottom end surface of the guide post (2) is fixedly connected with a clamping block (14), and a clamping seat (4) is arranged on the outer side of the clamping block (14).

4. The countersink drill with the replaceable guide post according to claim 3, wherein the left side surface of the clamping seat (4) is connected with a fixing bolt (9) in a threaded mode, one side of the fixing bolt (9) is connected with a bearing (18), and one side of the bearing (18) is fixedly connected with a left clamping plate (19).

5. The countersink drill with the replaceable guide post of claim 4, wherein screws (10) are arranged on two sides of the fixing bolt (9), a shock pad (22) is fixedly connected to the inside of the clamping seat (4), a fixing clamping plate (20) is fixedly connected to one side of the shock pad (22), and a rubber pad (21) is fixedly connected to one side of the fixing clamping plate (20).

6. The countersink drill with the replaceable guide post according to claim 3, wherein a threaded block (17) is fixedly connected to the bottom end surface of the clamping seat (4), a fixed seat (16) is connected to the outer side of the threaded block (17) in a threaded mode, a limit seat (5) is arranged on the top end surface of the fixed seat (16), and a fixing screw (15) is connected to the surface of the limit seat (5) in a threaded mode.

7. The countersink drill with the replaceable guide post of claim 6, wherein the bottom end surface of the fixing seat (16) is fixedly connected with a handle (6), the surface of the handle (6) is fixedly connected with a radiating fin (7), the bottom end of the handle (6) is fixedly connected with a connecting block (8), and the fixing screw (15) penetrates through the inside of the limiting seat (5) and is in threaded connection with the handle (6).