CN214978268U

CN214978268U - Drill bit thread machining device

Info

Publication number: CN214978268U
Application number: CN202121197559.XU
Authority: CN
Inventors: 刘旭东
Original assignee: Changzhou Glentech Tools Co ltd
Current assignee: Changzhou Glentech Tools Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-03
Anticipated expiration: 2031-05-31

Abstract

The utility model belongs to the technical field of drill bit machining, in particular to a drill bit thread machining device, which comprises a three-axis linkage machine tool, wherein a main shaft cutter is arranged on the Z axis of the three-axis linkage machine tool, and a screw tap cutter is arranged on the three-axis linkage machine tool positioned at one end of an X axis; the X-axis is provided with a rotary table, the rotary table is fixedly connected with a chuck, clamping jaws of the chuck are fixedly connected with a mounting seat, a clamping rod is arranged in the mounting seat, one end of the clamping rod is connected with a clamping block, the other end of the clamping rod is connected with a power assembly, and the power assembly is used for driving the clamping rod to drive the clamping block to linearly move along the radial direction of the chuck; and a positioning component is arranged on the X axis at one side of the turntable. The utility model can directly process the taper thread on the drill bit, thereby reducing the process steps; the utility model discloses can carry out effective centre gripping to the drill bit.

Description

Drill bit thread machining device

Technical Field

The utility model belongs to the technical field of the drill bit processing, concretely relates to drill bit screw thread processingequipment.

Background

Since the 20 th century and 80 th century, the PDC drill bit has high mechanical drilling speed and long service life in homogeneous sand-shale formations with soft to medium hardness due to the unique shearing and rock breaking mode, has become the main drill bit for oil and gas drilling, and meanwhile, along with the continuous development of the drill bit design technology, the diamond superhard material technology and the manufacturing and processing technology, the application range of the PDC drill bit is wider and wider. When the PDC drill bit is produced, tapered threads need to be machined.

CN210498651U discloses a drill bit screw thread processing centre gripping conveying mechanism, including casing and cover shell, the inside fixedly connected with conveyer of casing, and the equal fixedly connected with slide rail in both sides around the casing top, the surface sliding connection of sliding block and slide rail is all passed through to both sides around the cover shell bottom, branch fixedly connected with sleeve post is passed through at the top of cover shell, and the internal surface rotation of sleeve post is connected with the connecting rod, the equal fixedly connected with threaded rod in the left and right sides of connecting rod, the left and right sides of cover shell internal surface all is through spring fixedly connected with arc shell, two the equal fixedly connected with dead lever in one side of arc shell, the utility model relates to a drill bit technical field. This drill bit thread machining centre gripping conveying mechanism utilizes the cooperation between threaded rod, connecting rod, montant and the dead lever can carry out the centre gripping to the drill bit of different kinds of specifications, makes this centre gripping conveying mechanism's application range more extensive, and the practicality is stronger.

Also, for example, publication No. CN202571501U discloses a lathe and a conical thread processing device thereof, which includes a pressing plate, an oblique block and an ejector pin, wherein the oblique block is fixedly disposed on a lathe tailstock, an included angle between an oblique plane of the oblique block and an axial lead of the lathe tailstock is equal to an inclination of a conical angle of a parent body to be processed, one end of the pressing plate is fixedly connected with a lathe tool rest, the other end of the pressing plate is fixedly connected with the ejector pin, and the ejector pin abuts against an oblique plane of the oblique block. According to the configuration, the utility model discloses a conical thread processingequipment of lathe, it can be on the basis of avoiding machining error, has more extensive range of application. The utility model also discloses a lathe of including above-mentioned circular cone thread processingequipment.

In the prior art, when the PDC drill bit is produced, most of the thread part and the drill bit part are separately produced, so that the production cost is increased; and when a few PDC drill bits are used for machining threads, the used fixture is complex in structure and high in production cost.

SUMMERY OF THE UTILITY MODEL

To the above insufficiency, the utility model aims at providing a drill bit thread processing device.

The utility model provides a following technical scheme:

a drill thread machining device comprises a three-axis linkage machine tool, wherein a main shaft cutter is arranged on a Z axis of the three-axis linkage machine tool, and a screw tap cutter is arranged on the three-axis linkage machine tool positioned at one end of an X axis;

the X-axis is provided with a rotary table, the rotary table is fixedly connected with a chuck, clamping jaws of the chuck are fixedly connected with a mounting seat, a clamping rod is arranged in the mounting seat, one end of the clamping rod is connected with a clamping block, the other end of the clamping rod is connected with a power assembly, and the power assembly is used for driving the clamping rod to drive the clamping block to linearly move along the radial direction of the chuck; and a positioning component is arranged on the X axis at one side of the turntable.

The clamping rod is a threaded rod which is arranged in a threaded hole formed in the mounting seat in a matched manner; the clamping block is fixedly connected with a bearing, and one end of the threaded rod is fixedly connected with an inner ring of the bearing.

The power assembly is a hand wheel lever.

One end of the threaded rod, which is far away from the clamping block, is fixedly connected with a connecting block, the connecting block is provided with a slot, and the slot wall of the slot is provided with a slot groove; a connecting seat is fixedly connected to the mounting seat, a stepped through hole is formed in the connecting seat, and the connecting block is inserted into the stepped through hole; the hand wheel pole one end rigid coupling has the connector, is equipped with the card strip on the connector, and the connector injects in the ladder through-hole.

The clamping block is fixedly connected with a guide rod, and the guide rod is inserted into a guide hole formed in the mounting seat.

The clamping block is arc-shaped.

A rotating rod is rotatably arranged in the clamping block, and a gear is fixedly connected to the rotating rod; one side of the rotating rod is provided with a push rod, the push rod is provided with a rack meshed with the gear, and one end of the push rod is fixedly connected with a clamping block.

The chuck is a two-jaw chuck.

The positioning assembly comprises a positioning seat fixedly connected on an X axis, and a positioning threaded column is arranged in a threaded hole formed in the positioning seat in a matched manner; and the chuck is provided with a positioning hole.

The utility model has the advantages that:

1. the utility model can directly process the conical thread on the drill bit by installing the drill bit on the three-axis linkage machine tool; moreover, the screw tap cutter is arranged on the three-axis linkage machine tool, so that a threaded hole can be machined in the side surface of the drill bit, the drill bit does not need to be assembled and disassembled again, and the process steps are reduced;

2. the clamping rod is fixedly arranged on the clamping jaw of the chuck, so that the drill bit can be effectively clamped and is convenient to assemble and disassemble;

3. the utility model discloses simple structure, easy maintenance, manufacturing cost is lower.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a front view of the drill bit of the present invention;

FIG. 3 is a top view of the three-axis linkage machine tool of the present invention;

fig. 4 is a schematic view of the installation seat and the clamping block of the present invention;

fig. 5 is a cross-sectional view of the clamping block of the present invention;

fig. 6 is a schematic view of the internal structure of the connecting seat of the present invention.

Labeled as: the three-axis linkage machine tool 101, a tap cutter 102, a positioning seat 103, a drill 104, a Z-axis 105, a spindle cutter 106, a key groove 107, a Y-axis 108, an X-axis 109, a rotary table 110, a mounting seat 201, a hand wheel rod 202, a connecting seat 203, a clamping block 204, a guide rod 205, a threaded rod 206, a rotary rod 207, a fixture block 208, a push rod 209, a connecting head 210 and a connecting block 211.

Detailed Description

As shown in the figure, the drill thread machining device comprises a three-axis linkage machine tool 101, wherein the three-axis linkage machine tool 101 comprises an X axis 109, a Y axis 108 and a Z axis 105, a main shaft cutter 106 is installed on the Z axis 105 of the three-axis linkage machine tool 101, the main shaft cutter 106 can be driven to do linear motion in the vertical direction, and meanwhile, the main shaft of the main shaft cutter 106 can also be controlled to rotate by a control system. The X-axis 109 is provided with a rotary table 110, the rotary table 110 can be driven by a motor to rotate, the motor is electrically connected with a control system, and the control system can control the motor to drive the rotary table 110 to rotate. A chuck is fixedly mounted on the turntable 110, and a mounting seat 201 is fixedly mounted on a jaw of the chuck. The jaws can drive the mounting base 201 to move linearly along the radial direction of the chuck. A clamping rod is installed in the installation seat 201, one end of the clamping rod is connected with a clamping block 204, and the other end of the clamping block 204 is connected with a power assembly. The power assembly can drive the clamping rods to drive the clamping blocks 204 to do linear motion along the radial direction of the chuck, so that the drill bit 104 placed on the chuck is clamped and fixed by the plurality of groups of clamping blocks 204, and then the spindle tool 106 processes the taper threads.

Because threaded holes need to be machined in the drill, the tap cutter 102 is mounted on the three-axis linkage machine 101 at one end of the X-axis 109, the X-axis 109 can drive the drill 104 to be close to the tap cutter 102, and then the tap cutter 102 machines a plurality of threaded holes in the drill 104. In order to accurately position and improve the positional accuracy of the screw hole, a positioning unit is provided on the X-axis 109 on the turntable 110 side. After one threaded hole is machined, the turntable 110 is rotated and positioned by the positioning assembly to machine the next threaded hole.

In the present embodiment, the clamping rod is a threaded rod 206, and specifically, the threaded rod 206 is fittingly installed in a threaded hole provided in the mounting block 201. A bearing is fixedly arranged on the clamping block 204, and one end of the threaded rod 206 is fixedly connected with the inner ring of the bearing. When the threaded rod 206 is rotated, the threaded rod 206 causes the clamping block 204 to move linearly in a radial direction, thereby clamping or unclamping the drill bit 104.

In this embodiment, the power assembly is a hand wheel lever 202. In order to avoid the hand wheel shaft 202 from being forced to rotate during the machining process, the clamping block 204 is loosened, and the drill bit 104 cannot be clamped stably. A connecting block 211 is fixedly mounted at one end of the threaded rod 206, which is far away from the clamping block 204, the connecting block 211 is provided with a slot, and the slot wall of the slot is provided with a slot groove; the mounting seat 201 is fixedly provided with a connecting seat 203, a stepped through hole is arranged in the connecting seat 203, the stepped through hole is composed of a first through hole and a second through hole, and the aperture of the first through hole is smaller than that of the second through hole. The connecting block 211 is inserted into the second through hole of the stepped through hole; the connector 210 is fixedly installed at one end of the hand wheel rod 202, a clamping strip is arranged on the connector 210, the connector 210 is inserted into the second through hole of the stepped through hole, and meanwhile, the outer diameter of the connector 210 is larger than the diameter of the first through hole, so that the connector 210 cannot be separated. When the hand wheel rod 202 is used, the connecting head 210 is inserted into the slot of the connecting block 211, so that the threaded rod 206 is driven to rotate by the hand wheel rod 202; when the hand wheel rod 202 is not used, the connector 210 is pulled out, so that the situation that the threaded rod 206 rotates due to the stress of the hand wheel rod 202 and the clamping block 204 is loosened is avoided.

In this embodiment, a guide rod 205 is fixedly installed on the clamping block 204, and the guide rod 205 is inserted into a guide hole provided on the mounting base 201. Thereby making the clamp blocks 204 more robust in radial movement.

In this embodiment, the gripping block 204 is arcuate so as to provide an effective fit with the drill bit 104. A mounting groove is formed in the clamping block 204, a rotating rod 207 is rotatably mounted in the mounting groove, and a gear is fixedly mounted on the rotating rod 207; a push rod 209 is arranged on one side of the rotating rod 207, a rack meshed with the gear is arranged on the push rod 209, and a clamping block 208 is fixedly arranged at one end of the push rod 209. A hexagon socket nut is fixedly installed at one end of the rotating rod 207, so that the rotating rod 207 can be rotated, the push rod 209 drives the fixture block 208 to do linear motion in the radial direction, the fixture block 208 can be inserted into the key groove 107 on the drill bit 104, and the clamping is more stable.

In this embodiment, the chuck is a two-jaw chuck, thereby facilitating the handling of a large-sized drill bit 104.

In this embodiment, the positioning assembly includes a positioning seat 103 fixedly mounted on the X-axis 109, and a positioning threaded column is fittingly mounted in a threaded hole formed in the positioning seat 103; the chuck is provided with a positioning hole. When the positioning is needed, the rotary table 110 is rotated, the positioning hole is aligned to the positioning threaded column, then the positioning threaded column is rotated, one end of the positioning threaded column is inserted into the positioning hole, the rotary table 110 is positioned and fixed, and the phenomenon that the machining precision is reduced due to the rotation of the rotary table 110 when the screw tap tool 102 is machined is avoided.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A drill thread machining device comprises a three-axis linkage machine tool (101), wherein a main shaft cutter (106) is installed on a Z axis (105) of the three-axis linkage machine tool (101), and a tap cutter (102) is installed on the three-axis linkage machine tool (101) positioned at one end of an X axis (109); the method is characterized in that:

a rotary table (110) is installed on the X-axis (109), a chuck is fixedly connected to the rotary table (110), a mounting seat (201) is fixedly connected to a jaw of the chuck, a clamping rod is installed in the mounting seat (201), one end of the clamping rod is connected with a clamping block (204), the other end of the clamping rod is connected with a power assembly, and the power assembly is used for driving the clamping rod to drive the clamping block (204) to do linear motion along the radial direction of the chuck; a positioning component is arranged on an X axis (109) at one side of the turntable (110).

2. The drill thread machining device according to claim 1, wherein: the clamping rod is a threaded rod (206), and the threaded rod (206) is installed in a threaded hole formed in the mounting seat (201) in a matched mode; a bearing is fixedly connected to the clamping block (204), and one end of the threaded rod (206) is fixedly connected with an inner ring of the bearing.

3. The drill thread machining device according to claim 2, wherein: the power assembly is a hand wheel lever (202).

4. The drill thread machining device according to claim 3, wherein: one end, away from the clamping block (204), of the threaded rod (206) is fixedly connected with a connecting block (211), the connecting block (211) is provided with a slot, and the slot wall of the slot is provided with a slot groove; the mounting seat (201) is fixedly connected with a connecting seat (203), a step through hole is formed in the connecting seat (203), and the connecting block (211) is inserted into the step through hole; the hand wheel pole (202) one end rigid coupling has connector (210), is equipped with the card strip on connector (210), and connector (210) injects in the ladder through-hole.

5. The drill thread machining device according to claim 2, wherein: a guide rod (205) is fixedly connected to the clamping block (204), and the guide rod (205) is inserted into a guide hole formed in the mounting base (201).

6. The drill thread machining device according to claim 1, wherein: the clamping block (204) is arc-shaped.

7. The drill thread machining device according to claim 1 or 6, wherein: a rotating rod (207) is rotatably arranged in the clamping block (204), and a gear is fixedly connected to the rotating rod (207); a push rod (209) is arranged on one side of the rotating rod (207), a rack meshed with the gear is arranged on the push rod (209), and a clamping block (208) is fixedly connected to one end of the push rod (209).

8. The drill thread machining device according to claim 1, wherein: the chuck is a two-jaw chuck.

9. The drill thread machining device according to claim 1, wherein: the positioning assembly comprises a positioning seat (103) fixedly connected on an X-axis (109), and a positioning threaded column is arranged in a threaded hole formed in the positioning seat (103) in a matched manner; and the chuck is provided with a positioning hole.