CN212122469U

CN212122469U - Clamping structure for machining PDC drill bit steel body

Info

Publication number: CN212122469U
Application number: CN202020919060.4U
Authority: CN
Inventors: 孙绍梅
Original assignee: Yantai Huashi Petroleum Machinery Co ltd
Current assignee: Yantai Huashi Petroleum Machinery Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-12-11
Anticipated expiration: 2030-05-27

Abstract

The utility model discloses a processing PDC drill bit clamping structure for steel body, the on-line screen storage device comprises a base, the upper end of base is equipped with a plurality of slots, the slot interpolation is equipped with the drill bit body, be equipped with the spread groove in the base, be equipped with the cavity groove between slot inside wall and the spread groove, cavity inslot sliding connection has the clamp splice, the one end of clamp splice runs through the cavity groove and offsets with the drill bit body, the other end fixedly connected with screw rod of clamp splice, be equipped with the rotary drum corresponding with the screw rod in the spread groove, the other end of screw rod runs through the cavity groove and extends to in the rotary drum, be threaded connection between rotary drum and the screw rod, be equipped with the supporting shoe in the spread groove, the both ends of supporting shoe respectively with the spread groove in relative lateral wall fixed connection, be. The utility model is simple in operation convenient, through drive mechanism's setting, carry out the centre gripping to a plurality of drill bits simultaneously to improve machining efficiency.

Description

Clamping structure for machining PDC drill bit steel body

Technical Field

The utility model relates to a drill bit processing technology field especially relates to a clamping structure for processing PDC drill bit steel body.

Background

The PDC drill bit is a polycrystalline diamond compact drill bit for short, is formed by manufacturing polycrystalline diamond (thin disc-shaped) into small cutting blocks and embedding or sintering the small cutting blocks on a drill bit body, is applied to the drilling in the field of geological exploration of soft to medium-hard strata, has the consumption of not less than 5000 thousands of the drill bits per year in the field of geological exploration, and has the consumption of not less than 2000 thousands of the drill bits belonging to hard and broken complex difficult-to-drill strata, so the market prospect is wide, and the PDC drill bit needs to be fixed by a clamping mechanism in the processing process.

But the clamping structure for the steel body of the existing PDC drill bit is simpler, only a single drill bit can be clamped, and the efficiency is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving PDC drill bit clamping structure for the steel body comparatively simple, can only carry out the centre gripping to single drill bit, efficiency is lower, and the clamping structure for the processing PDC drill bit steel body that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a clamping structure for processing a steel body of a PDC drill bit comprises a base, wherein a plurality of slots are formed in the upper end of the base, a drill bit body is inserted in each slot, a connecting groove is formed in the base, a hollow groove is formed between the inner side wall of each slot and the connecting groove, a clamping block is connected in the hollow groove in a sliding mode, one end of the clamping block penetrates through the hollow groove and abuts against the drill bit body, a screw rod is fixedly connected to the other end of the clamping block, a rotary drum corresponding to the screw rod is arranged in the connecting groove, the other end of the screw rod penetrates through the hollow groove and extends into the rotary drum, the rotary drum is in threaded connection with the screw rod, a supporting block is arranged in the connecting groove, two ends of the supporting block are fixedly connected with opposite side walls in the connecting groove respectively, through holes corresponding to the rotary drum are formed in, the rotary drum is characterized in that a worm is arranged in the connecting groove, a gear meshed with the worm is fixedly sleeved on the rotary drum, one end of the worm is rotatably connected with the inner side wall of the connecting groove, a through hole communicated with the connecting groove is formed in the outer side wall of the base, and the other end of the worm penetrates through the through hole.

Preferably, both sides of the clamping block are provided with grooves, balls are arranged in the grooves, and the balls are abutted to the inner side wall of the sliding groove.

Preferably, one side of the clamping block close to the drill bit body is fixedly connected with a rubber pad.

Preferably, the rotary drum is fixedly sleeved with a bearing, and the outer side wall of the bearing is fixedly connected with the inner side wall of the through opening.

Preferably, one end of the worm penetrating through the through hole is fixedly connected with a turntable.

Preferably, the lower end of the base is fixedly connected with a rubber block.

Has the advantages that:

1. when the drill bit is used, the drill bit body is inserted into the slot, the worm is rotated, the worm rotates to drive the rotary drum to rotate under the action of meshing with the gear, a certain supporting effect can be exerted on the rotary drum through the arrangement of the supporting block, the stability of the rotary drum during rotation is improved, the rotary drum rotates to drive the screw to move under the action of meshing with the threads, and the clamping block is driven by the screw to clamp the drill bit body;

2. through the setting of ball, can reduce the resistance when the clamp splice removes, through the setting of rubber pad, steadiness when can improving the clamp splice centre gripping, through the setting of bearing, stationarity when can strengthening the rotary drum and rotating, through the setting of carousel, can convenience of customers rotate the worm, through the setting of block rubber, can improve the frictional force between base and the ground, reinforcing overall stability.

Drawings

Fig. 1 is a schematic structural view of a clamping structure for machining a steel body of a PDC drill bit according to the present invention;

FIG. 2 is a schematic structural view of the clamping structure at the position A for machining the steel body of the PDC drill bit according to the present invention;

fig. 3 is the utility model provides a side view structure schematic diagram of a processing PDC drill bit clamping structure for steel body.

In the figure: 1-bearing, 2-screw rod, 3-clamping block, 4-drill bit body, 5-base, 6-supporting block, 7-worm, 8-rotary table, 9-rotary drum, 10-gear, 11-rubber pad and 12-ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a clamping structure for processing a steel body of a PDC drill bit comprises a base 5, a rubber block fixedly connected to the lower end of the base 5 for improving the friction between the base 5 and the ground and enhancing the overall stability, a plurality of slots provided at the upper end of the base 5, a drill bit body 4 inserted in the slots, a connecting slot provided in the base 5, a hollow slot provided between the inner side wall of the slot and the connecting slot, a clamping block 3 slidably connected in the hollow slot for clamping the drill bit body 4, grooves provided at both sides of the clamping block 3, balls 12 provided in the grooves for reducing the resistance when the clamping block 3 moves, the balls 12 abutting against the inner side wall of the sliding slot, one end of the clamping block 3 penetrating through the hollow slot and abutting against the drill bit body 4, a rubber pad 11 fixedly connected to one side of the clamping block 3 close to the drill bit body 4 for improving the stability when the clamping block 3 clamps, and a screw rod 2, the clamping block is used for driving the clamping block 3 to move, the inside of the connecting groove is provided with a rotary drum 9 corresponding to the screw rod 2 and used for driving the screw rod 2 to move, the other end of the screw rod 2 penetrates through the hollow groove and extends into the rotary drum 9, and the rotary drum 9 is in threaded connection with the screw rod 2.

In the embodiment, a supporting block 6 is arranged in the connecting groove and used for supporting the rotary drum 9 to a certain extent and improving the stability of the rotary drum 9 when rotating, two ends of the supporting block 6 are fixedly connected with opposite side walls in the connecting groove respectively, an opening corresponding to the rotary drum 9 is arranged in the supporting block 6, one end of the rotary drum 9 far away from the screw rod 2 penetrates through the opening and is rotatably connected with the inner side wall of the connecting groove, a bearing 1 is fixedly sleeved on the rotary drum 9 and used for improving the stability of the rotary drum 9 when rotating, the outer side wall of the bearing 1 is fixedly connected with the inner side wall of the opening, a worm 7 is arranged in the connecting groove and used for driving the gear 10 to rotate, a gear 10 meshed with the worm 7 is fixedly sleeved on the rotary drum 9 and used for driving the rotary drum 9 to rotate, one end of the worm 7 is rotatably, one end of the worm 7 penetrating through the through hole is fixedly connected with a turntable 8 for facilitating a user to rotate the worm 7.

In this embodiment, insert the slot with drill bit body 4 in, then rotate worm 7, worm 7 rotates and drives rotary drum 9 through the effect with gear 10 meshing and rotates, through the setting of supporting shoe 6, can play certain supporting role to rotary drum 9, improves the stability when rotary drum 9 rotates, and rotary drum 9 rotates and drives screw rod 2 through the effect of thread engagement and removes, drives clamp splice 3 through screw rod 2 and carries out the centre gripping to drill bit body 4, the utility model is simple in operation convenient, through drive mechanism's setting, carries out the centre gripping to a plurality of drill bits simultaneously to improve machining efficiency.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a processing PDC drill bit clamping structure for steel body, includes base (5), its characterized in that: the drill bit is characterized in that a plurality of slots are formed in the upper end of the base (5), a drill bit body (4) is inserted into the slots, connecting grooves are formed in the base (5), hollow grooves are formed between the inner side walls of the slots and the connecting grooves, clamping blocks (3) are connected in the hollow grooves in a sliding mode, one ends of the clamping blocks (3) penetrate through the hollow grooves and abut against the drill bit body (4), screw rods (2) are fixedly connected to the other ends of the clamping blocks (3), rotary drums (9) corresponding to the screw rods (2) are arranged in the connecting grooves, the other ends of the screw rods (2) penetrate through the hollow grooves and extend into the rotary drums (9), the rotary drums (9) are in threaded connection with the screw rods (2), supporting blocks (6) are arranged in the connecting grooves, two ends of the supporting blocks (6) are fixedly connected with the opposite side walls in the connecting grooves respectively, and through holes corresponding, the one end that screw rod (2) were kept away from in rotary drum (9) runs through the opening and rotates with the spread groove inside wall and be connected, be equipped with worm (7) in the spread groove, fixed cup joints gear (10) with worm (7) engaged with on rotary drum (9), the one end and the spread groove inside wall of worm (7) rotate and are connected, be equipped with on the lateral wall of base (5) with the communicating through-hole of spread groove, the other end of worm (7) runs through the through-hole.

2. The clamping structure for machining the steel body of the PDC bit according to claim 1, wherein: the two sides of the clamping block (3) are provided with grooves, the grooves are internally provided with balls (12), and the balls (12) are abutted to the inner side wall of the sliding groove.

3. The clamping structure for machining the steel body of the PDC bit according to claim 1, wherein: one side of the clamping block (3) close to the drill bit body (4) is fixedly connected with a rubber pad (11).

4. The clamping structure for machining the steel body of the PDC bit according to claim 1, wherein: the fixed cover has connect bearing (1) on rotary drum (9), the lateral wall and the opening inside wall fixed connection of bearing (1).

5. The clamping structure for machining the steel body of the PDC bit according to claim 1, wherein: one end of the worm (7) penetrating through the through hole is fixedly connected with a turntable (8).

6. The clamping structure for machining the steel body of the PDC bit according to claim 1, wherein: the lower end of the base (5) is fixedly connected with a rubber block.