Shaping machine for producing polycrystalline diamond composite drill bit

Abstract

The utility model discloses a shaping machine for producing a polycrystalline diamond composite drill bit. The shaping machine comprises a fixed unit, a movable unit and a shot blasting unit, wherein the movable unit is connected with the fixed unit and is used for mounting the composite drill bit; the shot blasting unit is mounted on the fixed unit and is used for blasting shots on the surface of the composite drill bit; compared with the prior art, the shaping machine for producing the polycrystalline diamond composite drill bit has the advantages that the composite drill bit can be conveniently mounted and dismounted through the arrangement of the internal thread pipe, the shot blasting head can flexibly move at all angles through the specially-designed track structure and the shot blasting device, and therefore the production efficiency is improved. In addition, when the rotating seat drives the composite drill bit to do circular motion under the action of the driving mechanism, the inner-thread threaded pipe drives the drill bit to rotate by means of the meshing principle of the first gear and the gear ring, and therefore the effect of removing welding slag is achieved when the composite drill bit collides with the blasting shots. The whole technological process is simple and efficient, and the manufacturing efficiency of the drill bit is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite bit shaping, in particular to a shaping machine for producing polycrystalline diamond composite bits. Background Art

[0002] With the continuous development of China's economy and the increasing demand for mineral resources, improving the efficiency of mining operations and reducing costs have become important issues faced by the mining industry. Among them, using polycrystalline diamond composite bits with high hardness and high wear resistance for drilling is an effective method. The structure of the existing composite bit is as shown in the Figure 1 accompanying drawings of the specification. The bottom of the bit has threads for connecting with the drill pipe, and the composite sheet 1 is fixed to the head of the bit by welding to increase the strength of the bit. However, how to clean the welding slag on the composite sheet 1 has become a difficult problem in the current technology.

[0003] Chinese Utility Model Patent No. 201320637011.1 discloses an auxiliary tool for grinding diamond composite sheet anchor bits, which uses a connecting pipe to be threadedly connected with the bit, so as to increase the distance between the hand and the grinding wheel when using an electric grinding wheel for grinding, avoiding the risk of the grinding wheel injuring the hand.

[0004] The inventor believes that it is time-consuming and laborious to remove the welding slag by means of grinding with an electric grinding wheel or knocking with a hammer. Therefore, it is particularly important to develop an efficient method that can quickly and environmentally remove the welding slag. Content of the Utility Model

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a shaping machine for producing polycrystalline diamond composite bits to solve the above problems.

[0006] To achieve the above object, a shaping machine for producing polycrystalline diamond composite bits of the utility model includes a fixing unit, a moving unit connected to the fixing unit for installing the composite bit, and a shot peening unit installed on the fixing unit for shot peening the surface of the composite bit;

[0007] The fixing unit includes a chassis and a base fixed to the center position at the lower end of the chassis through a connecting frame;

[0008] The moving unit includes a rotating seat arranged on the base, a driving mechanism arranged on the base for driving the rotating seat to rotate on the base, and an internal thread pipe arranged on the surface of the rotating seat for installing the composite bit;

[0009] The shot peening unit includes a shot peening head, a track connected to the fixing unit for installing the shot peening head, and a shot peening device connected to the shot peening head.

[0010] Preferably, the lower end of the internal thread pipe penetrates through the rotating seat and is rotatably connected to the rotating seat. A first gear is fixed to the lower end of the internal thread pipe, and a gear ring is fixed to the inner wall of the base. The first gear is meshed with the gear ring.

[0011] Preferably, the track is of an arc structure. The shot blasting head is fixed with a movable block slidably connected to the track, and a moving mechanism is connected between the shot blasting head and the track.

[0012] Preferably, the moving mechanism includes a first motor fixed to the movable block, a second gear fixed to the output shaft of the first motor, and a rack fixed to the track. The second gear is meshed with the rack.

[0013] Preferably, the shot blasting device includes a compressor fixed to the side of the chassis, an air storage tank connected to the compressor, a connecting pipe connected between the air storage tank and the shot blasting head, and a feeding hopper fixed to the chassis for adding shot to the connecting pipe.

[0014] Preferably, a shot blasting collection unit is connected to the lower end of the chassis.

[0015] Compared with the prior art, the present utility model has the following advantages: The present utility model designs a profiling machine for the production of polycrystalline diamond composite bits. Through the arrangement of the internal thread pipe, the composite bit can be conveniently installed and disassembled. Through the specially designed track structure and shot blasting device, the shot blasting head can move flexibly at various angles, greatly increasing the coverage area of shot blasting. In addition, while the rotating seat drives the composite bit to perform a circular motion under the action of the driving mechanism, by virtue of the meshing principle of the first gear and the gear ring, the internal thread pipe drives the bit to rotate, so that the composite bit can achieve the effect of removing welding slag during the collision with the shot blasting. The whole technological process is simple and efficient, greatly improving the manufacturing efficiency of the bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0017] Figure 1 It is a schematic structural diagram of a composite bit.

[0018] Figure 2 It is a three-dimensional structural diagram of the present utility model.

[0019] Figure 3 It is a front view structural diagram of the present utility model.

[0020] Figure 4This is a front view sectional structure schematic diagram of the present utility model.

[0021] Figure 5 This is a structure schematic diagram of the present utility model.

[0022] Figure 6 This is a structure schematic diagram of the present utility model.

[0023] In the figure: 10, fixing unit; 11, chassis; 12, connecting frame; 13, base; 20, polycrystalline diamond composite bit; 30, moving unit; 31, rotating seat; 32, driving mechanism; 33, internal thread pipe; 34, first gear; 35, gear ring; 40, shot peening unit; 41, shot peening head; 42, track; 43, shot peening device; 431, compressor; 432, air storage tank; 433, connecting pipe; 434, feeding hopper; 44, movable block; 45, moving mechanism; 451, first motor; 452, second gear; 453, rack; 50, shot peening collection unit. Specific embodiments

[0024] The following further elaborates in detail on the specific embodiments of the present utility model in conjunction with the attached Figures 1-6 drawings.

[0025] As Figures 1-6 shown, a dressing machine for producing polycrystalline diamond composite bits of the present utility model includes a fixing unit 10, a moving unit 30 connected to the fixing unit 10 for installing the polycrystalline diamond composite bit 20, and a shot peening unit 40 installed on the fixing unit 10 for shot peening the surface of the polycrystalline diamond composite bit 20;

[0026] As Figure 4 shown, the fixing unit 10 includes a chassis 11 and a base 13 fixedly installed at the center of the lower end of the chassis 11 through a connecting frame 12. A gap 14 is formed between the base 13 and the chassis 11, and the shot peening ejected by the shot peening unit 40 can fall downward through the gap 14, avoiding the accumulation of shot peening on the base 13;

[0027] The moving unit 30 includes a rotating seat 31 arranged on the base 13, a driving mechanism 32 arranged on the base 13 for driving the rotating seat 31 to rotate on the base 13, and an internal thread pipe 33 arranged on the surface of the rotating seat 31 for installing the polycrystalline diamond composite bit 20. The bottom of the polycrystalline diamond composite bit 20 is self - threaded, so the polycrystalline diamond composite bit 20 can be directly installed into the internal thread pipe 33. During use, first fix the polycrystalline diamond composite bit 20 on the internal thread pipe 33, and then the shot peening unit 40 ejects shot peening onto the surface of the polycrystalline diamond composite bit 20. Through the collision between the shot peening and the surface of the polycrystalline diamond composite bit 20, the welding slag at the connection between the composite sheet 1 and the bit is cracked and falls off. During the shot peening process, the driving mechanism 32 drives the rotating seat 31 to rotate to adjust the angle of the polycrystalline diamond composite bit 20.

[0028] To make the composite drill bit 20 come into more sufficient contact with the shot peening, the lower end of the internal thread pipe 33 penetrates through the rotating seat 31 and is rotatably connected to the rotating seat 31. A first gear 34 is fixed to the lower end of the internal thread pipe 33, and a gear ring 35 is fixed to the inner wall of the base 13. The first gear 34 is meshed with the gear ring 35. When the driving mechanism 32 drives the rotating seat 31 to rotate, the internal thread pipe 33 will rotate around the center of the base 13. During the rotation, the first gear 34 at the bottom rotates due to the meshing with the gear ring 35, so that the internal thread pipe 33 rotates self - sufficiently, enabling the surface of the composite drill bit 20 to better contact with the shot peening.

[0029] Specifically, the shot peening unit 40 includes a shot peening head 41, a track 42 connected to the fixing unit 10 for installing the shot peening head 41, and a shot peening device 43 connected to the shot peening head 41. The shot peening device 43 sprays shot peening outward through the shot peening head 41. By moving the shot peening head 41 within the track 42, the position of the shot peening head 41 can be adjusted.

[0030] In this embodiment, the track 42 is of an arc structure. A movable block 44 slidably connected to the track 42 is fixed to the shot peening head 41, and a moving mechanism 45 is connected between the shot peening head 41 and the track 42. When the shot peening head 41 moves within the track 42, it can spray shot peening at the composite drill bit 20 from different angles.

[0031] Please refer to Figure 6 , the moving mechanism 45 includes a first motor 451 fixed to the movable block 44, a second gear 452 fixed to the output shaft of the first motor 451, and a rack 453 fixed to the track 42. The second gear 452 is meshed with the rack 453. The first motor 451 can drive the second gear 452 to rotate. Through the meshing of the second gear 452 and the rack 453, the movable block 44 moves on the track 42, thus changing the position of the shot peening head 41 and the angle of its shot peening.

[0032] The shot peening device 43 includes a compressor 431 fixed to the side of the chassis 11, an air storage tank 432 connected to the compressor 431, a connecting pipe 433 connected between the air storage tank 432 and the shot peening head 41, and a feeding hopper 434 fixed to the chassis 11 for adding shot peening into the connecting pipe 433. The feeding hopper 434 is provided with a valve that can adjust the speed of adding shot peening into the connecting pipe 433. When the shot peening is added to the connecting pipe 433, the air storage tank 432 releases high - pressure gas to spray the shot peening through the shot peening head 41 onto the surface of the composite drill bit 20, thereby cracking the welding slag. Compared with the methods of using an electric grinding wheel to polish the welding slag or a hammer to break the welding slag in the prior art, it is more efficient.

[0033] A shot peening collection unit 50 is connected to the lower end of the chassis 11. After the shot peening is sprayed onto the composite drill bit 20, it falls into the shot peening collection unit 50 through the gap 14 for collection.

[0034] When the present invention is used, the composite drill 20 is first installed into the internal threaded tube 33 through the thread at the bottom, and then the shot peening unit 40 sprays high-speed shot peening on the surface of the composite drill 20 to be processed. At the same time, the rotation of the rotating seat 31 on the base 13 can adjust the angle of the composite drill 20 so that it is more fully in contact with the shot peening. During the rotation of the rotating seat 31, the internal threaded tube 33 will drive the composite drill 20 to rotate under the meshing action of the first gear 33 and the gear ring 14, further optimizing the shot peening effect of the drill. In addition, the shot peening unit 40 is designed with a track 42, so that the shot peening head 41 can change the angle of the shot peening head 41 during the shot peening process by moving, so that the composite sheet 1 on the surface of the composite drill 20 can be more fully impacted by the shot peening, so as to achieve the purpose of removing the welding slag. Compared with the method of grinding the welding slag with an electric grinding wheel or crushing the welding slag with a hammer in the prior art, it is more efficient. The entire process is easy to operate and highly efficient, greatly improving the manufacturing efficiency and service life of polycrystalline diamond composite drill bits.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A profiling machine for the production of polycrystalline diamond composite bits, characterized in that, It includes a fixing unit (10), a movable unit (30) connected to the fixing unit (10) for installing a composite drill bit (20), and a shot peening unit (40) installed on the fixing unit (10) for shot peening the surface of the composite drill bit (20); The fixing unit (10) includes a chassis (11) and a base (13) fixed to the central position at the lower end of the chassis (11) through a connecting frame (12); The movable unit (30) includes a rotating seat (31) arranged on the base (13), a driving mechanism (32) arranged on the base (13) for driving the rotating seat (31) to rotate on the base (13), and an internally threaded pipe (33) arranged on the surface of the rotating seat (31) for installing the composite drill bit (20); The shot peening unit (40) includes a shot peening head (41), a track (42) connected to the fixing unit (10) for installing the shot peening head (41), and a shot peening device (43) connected to the shot peening head (41).

2. The profiling machine for producing polycrystalline diamond composite bits according to claim 1, characterized in that, The lower end of the internally threaded pipe (33) penetrates through the rotating seat (31) and is rotatably connected to the rotating seat (31). A first gear (34) is fixed to the lower end of the internally threaded pipe (33), and a gear ring (35) is fixed to the inner wall of the base (13). The first gear (34) is meshed and connected to the gear ring (35).

3. The profiling machine for producing polycrystalline diamond composite bits according to claim 1, wherein, The track (42) is of an arc structure. A movable block (44) slidably connected to the track (42) is fixed to the shot peening head (41), and a moving mechanism (45) is connected between the shot peening head (41) and the track (42).

4. The profiling machine for producing polycrystalline diamond composite bits according to claim 3, characterized in that, The moving mechanism (45) includes a first motor (451) fixed to the movable block (44), a second gear (452) fixed to the output shaft of the first motor (451), and a rack (453) fixed to the track (42). The second gear (452) is meshed and connected to the rack (453).

5. A profiling machine for producing polycrystalline diamond composite bits according to claim 1, characterized in that, The shot peening device (43) includes a compressor (431) fixed to the side of the chassis (11), an air storage tank (432) connected to the compressor (431), a connecting pipe (433) connected between the air storage tank (432) and the shot peening head (41), and a feeding hopper (434) fixed to the chassis (11) for adding shot peening into the connecting pipe (433).

6. The profiling machine for producing polycrystalline diamond composite bits according to claim 1, characterized in that, A shot peening collection unit (50) is connected to the lower end of the chassis (11).

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