CN215747864U

CN215747864U - Auxiliary clamp for machining large-diameter drill bit

Info

Publication number: CN215747864U
Application number: CN202121804615.1U
Authority: CN
Inventors: 方福彬; 王美其; 金敏
Original assignee: Shenzhen Yixin Technology Co ltd
Current assignee: Shenzhen Yixin Technology Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-02-08
Anticipated expiration: 2031-08-04

Abstract

The utility model relates to the technical field of drill bit machining, and particularly discloses an auxiliary clamp for machining a large-diameter drill bit. Including base and the backup pad of perpendicular rigid coupling on the base, the symmetry is equipped with the spliced pole of perpendicular rigid coupling in the backup pad on the base, all be equipped with double lead screw between spliced pole and the base, equal symmetrical threaded connection has the slider on the double lead screw, all be equipped with control double lead screw pivoted knob on the spliced pole, the slider all articulates there is the traction lever, the traction lever expansion end on same double lead screw articulates there is the function block, the function block can be dismantled and be connected with the arc piece that is used for the centre gripping drill bit, it has circular fastening chamber to open in the backup pad, fastening intracavity wall equipartition can be dismantled and be connected with a plurality of fasteners that are used for pressing from both sides tight drill bit. The auxiliary clamp for machining the large-diameter drill bit, provided by the utility model, has the advantages of wide application range, simplicity in operation and more stability in clamping of the drill bit.

Description

Auxiliary clamp for machining large-diameter drill bit

Technical Field

The application relates to the technical field of drill bit machining, and particularly discloses an auxiliary clamp for machining a large-diameter drill bit.

Background

The drill is a tool for drilling through holes or blind holes in solid materials and reaming existing holes. Commonly used drill bits mainly include twist drills, flat drills, center drills, deep hole drills, and trepanning drills. Reamers and reamers are not capable of drilling solid materials, but they are also traditionally classified as drills. The drill bit plays an important role in the actual production and processing process, and is very critical to the punching processing of products. In the production process of the drill bit, secondary processing treatment is often required to be carried out on the rough blank of the processed drill bit, and the clamping requirement on the drill bit is higher in the secondary processing process, so that the drill bit is required to be clamped by using a corresponding clamp. Accordingly, the present inventors have provided an auxiliary jig for machining a large-diameter drill to solve the above-described problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the conventional auxiliary clamp for machining a drill bit is poor in stability.

In order to achieve the purpose, the basic scheme of the utility model provides an auxiliary fixture for machining a large-diameter drill bit, which comprises a base and a supporting plate vertically and fixedly connected to the base, wherein a clamping assembly for clamping the drill bit is arranged on the base, the clamping assembly comprises a connecting column symmetrically arranged on the base and a double-head screw rod between the connecting column and the base, the connecting column is fixedly connected to the supporting plate, the double-head screw rod is symmetrically and threadedly connected with a sliding block, the connecting column is provided with a knob for controlling the double-head screw rod to rotate, the sliding block is rotatably connected with a traction rod, the movable end of the traction rod on the same double-head screw rod is rotatably connected with a functional block, the functional block is detachably connected with an arc-shaped block for clamping the drill bit, a circular fastening cavity is formed in the supporting plate, and a plurality of fasteners for clamping the drill bit are detachably connected to the inner wall of the fastening cavity in an evenly distributed mode.

The principle and effect of this basic scheme lie in:

1. arrange the drill bit in between the arc piece, rotatory knob rotates double-end lead screw, makes the arc piece draw close gradually and presss from both sides tight drill bit, and the arc piece can be dismantled and connect on the function block, can dismantle the arc piece of changing the diameter difference, and the drill bit of the different diameter specifications of centre gripping of being convenient for, and accommodation is wide, easy operation, drill bit centre gripping are more stable, have reduced the drill bit and have added the error that produces man-hour.

2. If the drill bit is too long, the front section of the drill bit can be arranged between the arc-shaped blocks, the rear section of the drill bit is arranged between the fasteners, the drill bit is clamped, the jumping generated during machining due to too long drill bit is reduced, and the stability during machining of the drill bit is enhanced.

Compared with the prior art, the arc piece can be dismantled, and the arc piece that corresponds is installed according to the drill bit of different diameter specifications, and accommodation is wide, arranges the drill bit anterior segment in between the arc piece, and the fastener is arranged in to the drill bit back end between, has reduced because the drill bit overlength adds the beat that produces man-hour, has solved traditional drill bit processing and has used the problem of supplementary anchor clamps poor stability.

Further, threaded holes are symmetrically formed in opposite surfaces of the function blocks, and threaded columns are fixedly connected to one surface, far away from the arc-shaped surface, of the arc-shaped block. The arc-shaped block is connected with the functional block through threads, so that the arc-shaped block can be replaced conveniently, and the device is simple and convenient.

Furthermore, the function block is connected with a guide rod which is arranged on the base in parallel in a sliding mode. In the process of clamping the drill bit, the guide rod enables the arc-shaped blocks on the functional block to be always opposite to each other, so that the arc-shaped blocks are prevented from being dislocated, and the drill bit is unstable in clamping.

Furthermore, a plurality of limiting plugs are symmetrically arranged on the opposite surface of one of the arc blocks, and limiting holes which can be matched with the limiting plugs are symmetrically arranged on the opposite surface of the other arc block. Spacing stopper and spacing hole cooperation reduce the drill bit and add man-hour, and the arc piece is beated the dislocation, has strengthened the stability of anchor clamps.

Further, be equipped with the function chamber that corresponds with the fastener in the backup pad, the function intracavity is equipped with the bolt that runs through to the fastening intracavity, and the fastening intracavity is equipped with the fastening piece with bolt afterbody rigid coupling, and the bolt is equipped with fastening nut. The bolt is rotated to adjust the position of the fastening block on the bolt so as to clamp the drill bit.

Furthermore, the arc-shaped surface of the arc-shaped block is fixedly connected with a rubber pad, and the surface of the fastening block, which is far away from the bolt, is fixedly connected with a rubber pad. The rubber pad can protect the abrasion generated when the drill bit contacts with the clamp, and reduce the vibration when the drill bit is processed.

Further, all install the belt pulley on the knob, install the belt on the belt pulley. When the knob rotates, the two double-head screw rods can synchronously rotate.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram illustrating an auxiliary fixture for machining a large-diameter drill according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural rear view of an auxiliary fixture for machining a large-diameter drill according to an embodiment of the present disclosure;

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Reference numerals in the drawings of the specification include: the device comprises a base 1, a supporting plate 2, a connecting column 3, a double-headed screw rod 4, a knob 5, a sliding block 6, a traction rod 7, a functional block 8, an arc-shaped block 9, a fixed column 10, a guide rod 11, a limiting plug 12, a fastening cavity 13, a functional cavity 14, a bolt 15, a fastening block 16, a fastening nut 17 and a rubber pad 18.

The embodiment is shown in figure 1, and comprises a base 1 and a supporting plate 2 vertically welded on the base 1, wherein two groups of connecting columns 3 vertically welded on the supporting plate 2 are symmetrically arranged on the base 1, a double-head screw 4 is rotatably connected between each group of connecting columns 3 through a bearing, the thread directions of the upper end and the lower end of the double-head screw 4 are opposite, knobs 5 in key connection with the double-head screw 4 are arranged on the upper connecting columns 3, belt pulleys are arranged on the knobs 5, belts are arranged on the belt pulleys, when the knobs 5 rotate, the two double-head screws 4 can synchronously rotate, sliders 6 are symmetrically and threadedly connected with the upper end and the lower end of the double-head screw 4, the sliders 6 are respectively articulated with a traction rod 7, the movable ends of the traction rods 7 are respectively articulated with a functional block 8, the opposite ends of the functional blocks 8 are symmetrically provided with threaded holes, the functional blocks 8 are threadedly connected with arc blocks 9, and threaded columns are welded at the ends of the arc blocks 9 far away from the arc surface, be convenient for the change of arc piece 9, it is simple and convenient, all weld fixed column 10 on being close to spliced pole 3 on the base 1, the welding has guide bar 11 between the fixed column 10,

guide bar

11 and 8 sliding connection of function block, at the in-process of pressing from both sides tight drill bit, guide bar 11 enables arc piece 9 on the function block 8 right side all the time, avoid arc piece 9 to take place the dislocation, the drill bit centre gripping is unstable, the looks remote site symmetry of left side arc piece 9 is equipped with two spacing holes, the looks remote site joint of right side arc piece 9 has spacing stopper 12, spacing stopper 12 and spacing hole cooperation, it adds man-hour to reduce the drill bit, arc piece 9 beats the dislocation, the stability of anchor clamps has been strengthened.

As shown in fig. 2, a circular fastening cavity 13 and four functional cavities 14 uniformly distributed outside the fastening cavity 13 are formed in the supporting plate 2, the circle center of the circular fastening cavity 13 coincides with the circle center of a drill bit clamped and stabilized by the arc-shaped block 9, bolts 15 penetrating into the fastening cavity 13 are installed in the functional cavities 14, fastening blocks 16 clamped with the tail portions of the bolts 15 are arranged in the fastening cavities 13, fastening nuts 17 are connected to the bolts 15 through threads, the bolts 15 are rotated to adjust the positions of the fastening blocks 16 on the bolts 15 so as to clamp the drill bit, rubber pads 18 are adhered to the arc-shaped surfaces of the arc-shaped blocks 9, the rubber pads 18 are adhered to the surfaces, far away from the bolts 15, of the fastening blocks 16, the rubber pads 18 can protect abrasion generated when the drill bit is in contact with a clamp, and vibration generated when the drill bit is machined is reduced.

Compared with the prior art, rotate two stud screws, control two arc pieces 9 and press from both sides tight drill bit, high reliability and simple operation, arc piece 9 passes through threaded connection and installs on function block 8, it is convenient to dismantle, the arc piece 9 that corresponds the diameter is changed according to the drill bit of different diameter specifications, the centre gripping is stable, the drill bit overlength, usable arc piece 9 centre gripping drill bit one end, the other one end of bolt 15 fastening drill bit on the backup pad 2 of recycling, avoid the drill bit to beat, guide bar 11 enables arc piece 9 on the function block 8 just right all the time, avoid arc piece 9 to take place the dislocation, the drill bit centre gripping is unstable, the spacing stopper 12 stopper and the spacing hole cooperation of arc piece 9, it adds man-hour to reduce the drill bit, arc piece 9 beats the dislocation, the stability of anchor clamps has been strengthened.

In the implementation process of the embodiment, the fixture is arranged on the workbench, a group of corresponding arc blocks 9 are selected according to drill bits of different specifications, the side faces of the drill bits can be tightly attached to the arc blocks 9, the drill bits are respectively connected to the function blocks 8 in a threaded manner, the knob 5 can be rotated to enable the two arc blocks 9 to be folded, whether the limiting plug 12 can slide into the limiting hole or not is determined, if not, the position of the arc blocks 9 needs to be adjusted until the two arc blocks 9 are close, the limiting plug 12 can slide into the limiting hole, after the arc blocks 9 are replaced, the drill bits are placed between the arc blocks 9, the knob 5 is rotated, the double-headed screw 4 rotates at the same speed, the drill bits are controlled to clamp the arc blocks 9, if the drill bits are too long, the drill bits can be placed in the fastening cavities 13 and the arc blocks 9, the bolts 15 are adjusted, the fastening blocks 16 are tightly attached to the drill bits, the fastening nuts 17 are tightened, and the drill bits can be stably clamped.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a major diameter drill bit processing is with supplementary anchor clamps which characterized in that: including base and the backup pad of perpendicular rigid coupling on the base, be equipped with the centre gripping subassembly that is used for the centre gripping drill bit on the base, the centre gripping subassembly includes spliced pole and the double lead screw between spliced pole and the base that the symmetry was equipped with on the base, the equal rigid coupling of spliced pole is in the backup pad, equal symmetrical threaded connection has the slider on the double lead screw, all be equipped with control double lead screw pivoted knob on the spliced pole, the slider all articulates there is the traction lever, the traction lever expansion end on same double lead screw articulates there is the function block, the function block can be dismantled and be connected with the arc piece that is used for the centre gripping drill bit, it has circular fastening chamber to open in the backup pad, fastening intracavity wall equipartition can be dismantled and be connected with a plurality of fasteners that are used for pressing from both sides tight drill bit.

2. The auxiliary clamp for machining the large-diameter drill bit according to claim 1, wherein threaded holes are symmetrically formed in opposite surfaces of the function blocks, and threaded columns corresponding to the threaded holes are fixedly connected to one surface, away from the arc-shaped surface, of the arc-shaped block.

3. The auxiliary fixture for machining the large-diameter drill bit as claimed in claim 1, wherein the functional block is slidably connected with guide rods arranged in parallel on the base.

4. The auxiliary fixture for machining the large-diameter drill bit according to claim 1 or 2, wherein a plurality of limiting plugs are symmetrically arranged on the opposite surface of one of the arc blocks, and limiting holes capable of being matched with the limiting plugs are symmetrically arranged on the opposite surface of the other arc block.

5. The auxiliary fixture for machining the large-diameter drill bit as claimed in claim 1, wherein the support plate is provided with a functional cavity corresponding to the fastening member, a bolt penetrating into the fastening cavity is arranged in the functional cavity, a fastening block fixedly connected with the tail of the bolt is arranged in the fastening cavity, and the bolt is provided with a fastening nut.

6. The auxiliary clamp for machining the large-diameter drill bit as claimed in claim 1 or 5, wherein rubber pads are fixedly connected to the arc-shaped surfaces of the arc-shaped blocks, and rubber pads are fixedly connected to the surfaces, away from the bolts, of the fastening blocks.

7. The auxiliary fixture for machining the large-diameter drill bit as claimed in claim 1, wherein the knobs are respectively provided with a belt pulley, and the belt pulleys are respectively provided with a belt.