CN220698447U

CN220698447U - Thread machining tool

Info

Publication number: CN220698447U
Application number: CN202322269798.7U
Authority: CN
Inventors: 钟仁志; 袁军; 吴佳欣; 项懂欣
Original assignee: Xinlei Compressor Co Ltd
Current assignee: Xinlei Compressor Co Ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-04-02
Anticipated expiration: 2033-08-22

Abstract

The utility model relates to the field of thread machining, in particular to a thread machining tool. This frock includes: the device comprises a transfer taper sleeve, a guide sleeve and a connecting sleeve, wherein a first blind hole and a second blind hole are formed in one end of the transfer taper sleeve; the guide limiting rod is inserted into the guide sleeve along the direction perpendicular to the center line of the guide sleeve; the transfer taper sleeve is also provided with a guide hole, the guide limit rod can move along the length direction of the guide hole, the length direction of the guide hole is parallel to the central line direction of the guide sleeve, and the thread processing assembly is arranged in the second blind hole; wherein, the guide sleeve surface shape is the cylinder. The machining tool can ensure that the overall strength of the guide sleeve is always good and is not easy to damage.

Description

Thread machining tool

Technical Field

The utility model relates to the field of thread machining, in particular to a thread machining tool.

Background

In mechanical engineering technology, threaded connection is very common, and the premise of threaded connection is that internal threads and external threads are respectively machined on different workpieces.

The traditional thread processing tool is used for processing the threads mostly through a handheld thread processing tool when processing the threads, generally, a special tool is used for turning when a lathe processes the external threads, a threading die is used for manually threading some threads, a tap is used for manually threading the smaller internal threads, obviously, the processing modes are time-consuming and labor-consuming, the threads are easy to skew, and the processing quality and the processing speed are very limited.

Accordingly, there is a need to provide a device capable of rapidly completing thread processing while ensuring processing quality. The thread processing device for lathe disclosed in Chinese patent application No. 201721800647.8 and 2017.12.20 comprises: the fixing part is provided with a first blind hole at one end; the guide sleeve is slidably inserted into the first blind hole and extends out of the fixed part from the first blind hole, one end, far away from the fixed part, of the guide sleeve is detachably connected with a thread processing part, and a step part is arranged on the upper part of the guide sleeve; the guide limiting rod is inserted into the guide sleeve along the direction perpendicular to the central line of the guide sleeve; the fixed part is also provided with a guide hole, the guide limiting rod can move along the length direction of the guide hole, and the length direction of the guide hole is parallel to the central line direction of the guide sleeve.

Although this processingequipment simple structure realizes easily and can accomplish the processing of screw thread fast, but this processingequipment's uide bushing upper portion has set up step portion, and the intensity of uide bushing in step corner is not high for this step portion's design, causes the damage of uide bushing easily when processing the screw thread.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a thread machining tool, which can ensure that the whole strength of a guide sleeve is always good and is not easy to damage.

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

a thread machining tool, the tool comprising:

a first blind hole is arranged at one end of the switching taper sleeve,

the outer surface of the guide sleeve is cylindrical; the guide sleeve is inserted into the first blind hole in a sliding manner and extends out of the switching taper sleeve from the first blind hole, and a second blind hole which is axially arranged is formed in the guide sleeve;

the guide limiting rod is inserted into the guide sleeve along the direction perpendicular to the center line of the guide sleeve; the transfer taper sleeve is also provided with a guide hole, the guide limit rod can move along the length direction of the guide hole, the length direction of the guide hole is parallel to the central line direction of the guide sleeve,

and the thread machining assembly is arranged in the second blind hole.

Preferably, one end of the switching taper sleeve far away from the first blind hole is provided with a taper.

Preferably, the adapting taper sleeve is provided with an integrally arranged protruding block at one end part with the taper.

Preferably, the first wall and the second wall for stopping the guide stopper rod are formed at both ends of the guide hole in the length direction, respectively.

Preferably, the guide sleeve is further provided with a jackscrew for radially fixing the thread machining assembly.

Preferably, the thread processing assembly is a round die, the round die is inserted into the second blind hole, the jackscrew is abutted to the outer peripheral surface of the round die, and the axial center line of the round die is overlapped with the axial center line of the second blind hole.

Preferably, the thread processing assembly is a tap, the tap part is inserted into the second blind hole, the jackscrew is abutted against the outer peripheral surface of the tap, and the axial center line of the tap coincides with the axial center line of the second blind hole.

Preferably, the screw tap is inserted into the end part of the second blind hole and is provided with a three-dimensional block, and the jackscrew is abutted against the side surface of the three-dimensional block.

In summary, the utility model has the following advantages:

through the step portion that cancels the uide bushing for the surface of uide bushing wholly forms a cylinder, thereby lets the bulk strength of guide way unified, not only can guarantee that the uide bushing is difficult to by damaging when processing the screw thread, can also reduce the course of working of guide way and make things convenient for its installation.

Drawings

FIG. 1 is a schematic structural view of a thread machining tool;

FIG. 2 is a schematic structural view of a thread machining tool;

FIG. 3 is a schematic view of the structure of the adapter cone sleeve;

FIG. 4 is a schematic view of the structure of a tap;

FIG. 5 is a schematic view of the structure of a round die;

reference numerals: 1. a transfer taper sleeve; 2. a guide sleeve; 3. a guide limit rod; 4. a thread machining assembly; 11. a first blind hole; 12. a guide hole; 12a, a first wall; 12b, a second wall; 13. taper; 14. a bump; 21. a second blind hole; 22. a jackscrew; 31. round die; 32. tapping; 33. a solid block.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate an orientation or a positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

At the same time, it should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

The following describes the embodiments of the present utility model in detail with reference to the drawings.

As shown in fig. 1 to 5, the present utility model provides a thread machining tool capable of machining internal and external threads, comprising an adapter taper sleeve 1, a guide sleeve 2, a guide limit rod 3 and a thread machining assembly 4. The adapter taper sleeve 1 is used for being fixed with a tailstock group for machining threads, and one end of the adapter taper sleeve 1 is required to be inserted into a shaft body of the tailstock group during fixing. The right end of the connecting taper sleeve 1 is at one end of the plug, so that the stability during installation is improved better, a certain taper 13 is arranged at the right end of the connecting taper sleeve 1, and the taper 13 is matched with the taper 13 of the tailstock group. Furthermore, we have set up the lug 14 that links to each other in an organic whole on the right-hand member tip of switching taper sleeve 1, increase and set up this lug 14 and can let the concentricity of whole processing frock strengthen for the screw thread can be more accurate in the in-process of processing.

The left side of the adapter taper sleeve 1 is provided with a first blind hole 11 which is axially arranged and a guide hole 12 which is radially arranged, the guide hole 12 and the first blind hole 11 are mutually communicated, wherein the two ends of the length direction of the guide hole 12 are respectively provided with a first wall 12a and a second wall 12b, and the first wall 12a and the second wall 12b can be used for stopping the guide limiting rod 3 later.

As shown in fig. 1 to 5, the guide sleeve 2 is axially inserted into the first blind hole 11, and the overall external structure of the guide sleeve 2 is cylindrical, compared with the prior art, the guide sleeve 2 cancels the step part of the guide sleeve 2, so that the outer surface of the guide sleeve 2 integrally forms a cylinder, the integral strength of the guide groove is uniform, the guide sleeve 2 is not easy to damage during thread processing, the processing process of the guide groove can be reduced, and the installation of the guide groove is convenient.

In use, the guide sleeve 2 is able to slide within the first blind bore 11. When the guide sleeve 2 is inserted into the switching taper sleeve 1, the guide limit rod 3 is required to be used for radial fixation, the guide limit rod 3 is firstly radially arranged in the guide hole 12 of the switching taper sleeve 1, and the guide sleeve 2 is fixed in the threaded hole of the guide sleeve 2 after the insertion of the guide sleeve 2 is completed; the guide limit rod 3 can move along the length direction of the guide hole 12, and the length direction of the guide hole 12 is parallel to the center line direction of the guide sleeve 2. When the guiding sleeve 2 is inserted, the left end of the guiding sleeve extends out of the switching taper sleeve 1 from the first blind hole 11.

The guide sleeve 2 is provided with a second blind hole 21 which is axially arranged, and the thread machining assembly 4 is arranged in the second blind hole 21.

The thread machining tool can be used for machining internal threads and external threads, and specific machining is as follows.

The method is used for processing external threads:

as shown in fig. 2, the thread processing assembly 4 is a round die 31, the round die 31 is axially inserted into the second blind hole 21, the left end plane of the round die 31 is flush with the left end plane of the guide sleeve 2, and the center line of the round die 31 coincides with the center line of the second blind hole 21, and is fixed by the jackscrew 22 on the guide sleeve 2. Of course, the mounting of the jackscrew 22 requires that a mounting hole be provided in the guide bush 2, the jackscrew 22 be inserted into the mounting hole and the jackscrew 22 be abutted against the round die 31, thereby positioning the round die 31 to improve the processing accuracy of the external thread.

After the round die 31 is fixed, the whole tool is mounted on the tailstock set, and because the workpiece to be machined is clamped by the machine tool and performs a low-number circular motion during the external thread machining, the tool starts to perform an axial motion only by fixing the tailstock set and rotating the turntable on the tailstock set.

After the outer circle of the processed workpiece is extruded with 1-2 thread teeth by the round die 31, the thread generated by extrusion cutting drives the round die 31 and the guide sleeve 2 to axially move, during which the transfer taper sleeve 1, the tailstock group and the shaft body of the tailstock group do not do any movement, the guide limiting rod 3 axially moves in the guide hole 12, and the guide limiting rod 3 slowly rotates to shake the tailstock group wheel disc before approaching the first wall 12a, so that the guide limiting rod 3 continuously keeps an axial safety distance in the guide hole 12 until the thread depth processing is in place.

Wherein, can conveniently and fast carry out the change of different specification screw taps through loosening jackscrew 22 to can process the external screw thread of different specifications fast.

The method is used for processing the internal thread:

as shown in fig. 1, the screw thread machining assembly 4 is a screw tap 32, the screw tap 32 is axially inserted into the second blind hole 21, the left end of the screw tap 32 extends out of the second blind hole 21 to a distance which is set according to the depth of the internal screw thread to be machined, the screw tap is fixed through a top screw 22 on the guide sleeve 2, and the center line of the screw tap 32 coincides with the center line of the second blind hole 21. Of course, the installation of the jackscrew 22 requires that a mounting hole be provided in the guide bush 2, the jackscrew 22 be inserted into the mounting hole and the jackscrew 22 be abutted against the tap 32, so that the tap 32 is positioned to improve the processing accuracy of the internal thread.

After the screw tap 32 is fixed, the whole tool is mounted on the tailstock set, and because the workpiece to be machined is clamped by the machine tool and performs low-number circular motion during machining of the external threads, the tool starts to perform axial motion only by fixing the tailstock set and rotating the turntable on the tailstock set.

Since the tap 32 is fixed, a desired thread can be machined in the workpiece to be machined. Wherein, can conveniently and fast carry out the change of different specification screw taps 32 through loosening jackscrew 22 to can process the internal thread of different specifications fast.

The right end of the tap 32 is provided with the solid block 33, and the jack screw 22 is abutted against the side surface of the solid block 33 during abutting, so that the tap 32 can be better fixed.

Since forces (axial force and radial force) in two directions are generated when the internal and external threads are machined, and radial force is not required in the machining process, the guide limiting rod 3 on the guide hole 12 can achieve a left-right limiting effect when being fixed. Wherein the axial force will push the guiding and limiting rod 3 against the second wall 12 b.

As shown in fig. 1 and 2, the fixture is symmetrically arranged along the axial center line of the adapter taper sleeve 1. When transversely putting, this frock is whole to be the upper and lower symmetry, and this setting makes the three of guiding hole 12, direction gag lever post 3 and jackscrew 22 set up two sets of on the frock at least, so set up the inner assembly that can better fixed processing frock to improve the accuracy nature of processing screw thread.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art. The generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a screw thread processing frock, its characterized in that, this frock includes:

the adapter taper sleeve (1), one end of the adapter taper sleeve (1) is provided with a first blind hole (11),

the guide sleeve (2), the shape of the outer surface of the guide sleeve (2) is a cylinder; the guide sleeve (2) is inserted into the first blind hole (11) in a sliding manner and extends out of the first blind hole (11) to the outside of the switching taper sleeve (1), and a second blind hole (21) which is axially arranged is formed in the guide sleeve (2);

the guide limiting rod (3) is inserted into the guide sleeve (2) along the direction perpendicular to the central line of the guide sleeve (2); the transfer taper sleeve (1) is also provided with a guide hole (12), the guide limit rod (3) can move along the length direction of the guide hole (12), the length direction of the guide hole (12) is parallel to the central line direction of the guide sleeve (2),

and a thread machining assembly (4), the thread machining assembly (4) being mounted in the second blind hole (21).

2. A thread machining tool according to claim 1, wherein the end of the adapter sleeve (1) remote from the first blind hole (11) is provided with a taper (13).

3. A thread machining tool according to claim 2, wherein the adapter cone sleeve (1) is provided with an integrally arranged lug (14) at one end of the arrangement cone (13).

4. A thread machining tool according to claim 1, wherein the guide hole (12) has a first wall (12 a) and a second wall (12 b) for stopping the guide stopper rod (3) formed at both ends in the longitudinal direction thereof.

5. A thread machining tool according to claim 1, characterized in that the guide sleeve (2) is further provided with a jackscrew (22) for radially fixing the thread machining assembly (4).

6. The thread machining tool according to claim 5, wherein the thread machining component (4) is a round die (31), the round die (31) is inserted into the second blind hole (21), the jackscrew (22) is abutted against the outer peripheral surface of the round die (31), and the axial center line of the round die (31) coincides with the axial center line of the second blind hole (21).

7. The thread machining tool according to claim 5, wherein the thread machining component (4) is a tap (32), the tap (32) is partially inserted into the second blind hole (21), the top thread (22) is abutted against the outer peripheral surface of the tap (32), and the axial center line of the tap (32) coincides with the axial center line of the second blind hole (21).

8. The thread machining tool according to claim 7, wherein the screw tap (32) is inserted into the end portion of the second blind hole (21) and is provided with a solid block (33), and the jackscrew (22) is abutted against the side surface of the solid block (33).