CN110695469A

CN110695469A - Tapping device for inner wall of internal thread tubular part

Info

Publication number: CN110695469A
Application number: CN201910989071.1A
Authority: CN
Inventors: 计小辈; 王丽敏
Original assignee: Xingtai Polytechnic College
Current assignee: Xingtai Polytechnic College
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-01-17
Anticipated expiration: 2039-10-17
Also published as: CN110695469B

Abstract

The invention discloses an internal thread tubular member inner wall tapping device, which relates to the technical field of machining and comprises a support frame, wherein a bearing plate used for supporting a pipe fitting is rotatably arranged on the support frame, a driving shaft driven by a driving motor is rotatably arranged on the support frame, the driving shaft is in driving connection with a screw tap used for tapping the pipe fitting through a transmission assembly, a lifting mechanism used for vertically driving the screw tap is arranged on the support frame, and a clamping mechanism used for locking and fixing the pipe fitting is arranged on the bearing plate; according to the pipe fitting tapping machine, the pipe fitting to be tapped is stably clamped through the clamping mechanism, the tapping process is guaranteed to be stable, the screw tap can rotate under the driving of the transmission assembly, the lifting mechanism drives the screw tap to move downwards, so that the pipe fitting can be tapped, the rotating direction of the pipe fitting driven by the bearing plate is opposite to the rotating direction of the screw tap, the tapping efficiency of the pipe fitting is greatly improved, the labor input in the operation process is low, and the tapping quality is high.

Description

Tapping device for inner wall of internal thread tubular part

Technical Field

The invention relates to the technical field of machining, in particular to a tapping device for an inner wall of an internal thread tubular part.

Background

The pipe fittings are general names of parts which play roles in connection, control, diversion, sealing, support and the like in a pipeline system, and steel pipe fittings are pressure-bearing pipe fittings and are divided into four categories according to different processing technologies, namely butt welding pipe fittings which are provided with welding seams or not, socket welding pipe fittings, threaded pipe fittings and flange pipe fittings. During the processing of the pipe fittings, internal threads need to be tapped on the inner wall of part of the pipe fittings so as to facilitate installation and assembly.

Application publication number is CN 104368883A's patent discloses a chasing bar, and it includes turns, even has screw tap and support the pole on turning, the screw tap with support the pole from the body of turning on reverse extension set up and both arrange with the core, turn and screw tap for the dismantlement formula link firmly, turn and support the pole for normal running fit. During use, the screw tap is vertically aligned with a hole in a workpiece to be tapped, then one hand of an operator holds the holding rod to stabilize the tapping device, the other hand pushes or rotates the rotating body to rotate around the holding rod, so that the screw tap is driven to rotate, tapping is realized, the tapping device can tap, the tapping process adopts manual operation, the working efficiency is low, and therefore the tapping device for the inner wall of the internal thread tubular part is provided at present to solve the technical problem.

Disclosure of Invention

The invention aims to provide a tapping device for the inner wall of an internally threaded tubular member, which solves the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an internal thread tubulose spare inner wall chasing bar, includes the support frame, rotates on the support frame and installs the loading board that is used for supporting the pipe fitting, rotate on the support frame and install the drive shaft by driving motor driven, the drive shaft is connected with through the drive assembly drive and is used for the screw tap to the pipe fitting tapping, be equipped with on the support frame with the elevating system to the vertical drive of screw tap, be equipped with on the loading board and be used for the fixture fixed to pipe fitting locking.

As a modified scheme of the invention: the transmission assembly comprises a transmission sleeve coaxially fixed with the pipe fitting, the driving shaft extends into the transmission sleeve, and a transmission strip uniformly fixed on the side wall of the driving shaft is embedded in the transmission sleeve in a sliding mode.

As a modified scheme of the invention: the lifting mechanism comprises a lifting frame connected with a transmission sleeve bearing, a vertically arranged rack is fixed on the lifting frame, and a lifting gear is connected to the rack in a meshing manner.

As a modified scheme of the invention: a guide rod is vertically fixed on the lifting frame, a sleeve with the upper end fixed with the support frame is sleeved on the guide rod, and a limiting spring is fixed between the sleeve and the guide rod.

As a modified scheme of the invention: the supporting frame is rotatably provided with a driven shaft parallel to the pipe fitting, the driven shaft is sleeved with a main gear, the bottom of the bearing plate is fixed with a rotating shaft, the main gear is engaged with a pinion which is sleeved with the auxiliary gear and fixed on the rotating shaft, and a belt pulley mechanism is connected between the driven shaft and the driving shaft in a transmission manner.

As a modified scheme of the invention: the clamping mechanism comprises two clamping plates which are arranged on the bearing plate in a sliding mode and are symmetrical about the pipe fitting, and an arc groove is formed in one side, opposite to the clamping plates, of each clamping plate.

As a modified scheme of the invention: be fixed with servo motor on the loading board, the last drive connection of servo motor has coaxial fixed and screw to opposite threaded rod I and threaded rod II soon, and threaded rod I and threaded rod II threaded connection run through two splint respectively, are fixed with the slider that the slip was inlayed and is established on the loading board on the splint.

Compared with the prior art, the invention has the beneficial effects that:

according to the pipe fitting tapping machine, the pipe fitting to be tapped is stably clamped through the clamping mechanism, the tapping process is guaranteed to be stable, the screw tap can rotate under the driving of the transmission assembly, the lifting mechanism drives the screw tap to move downwards, so that the pipe fitting can be tapped, the rotating direction of the pipe fitting driven by the bearing plate is opposite to the rotating direction of the screw tap, the tapping efficiency of the pipe fitting is greatly improved, the labor input in the operation process is low, and the tapping quality is high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of a partial perspective structure of the clamping mechanism of the present invention;

fig. 4 is a schematic perspective view of the transmission assembly of the present invention.

In the figure: 1-support frame, 2-guide rod, 3-sleeve, 4-belt pulley mechanism, 5-limit spring, 6-drive shaft, 7-drive motor, 8-drive strip, 9-lifting gear, 10-drive sleeve, 11-rack, 12-screw tap, 13-pipe fitting, 14-clamping plate, 15-servo motor, 16-bearing plate, 17-pinion, 18-rotating shaft, 19-master gear, 20-driven shaft, 21-lifting frame, 22-threaded rod I, 23-threaded rod II, 24-arc groove and 25-slide block.

Detailed Description

The technical scheme of the patent is further described in detail by combining the following specific embodiments:

example 1

Referring to fig. 1-4, the tapping device for the inner wall of the internal thread tubular member comprises a support frame 1, a bearing plate 16 used for supporting a pipe member 13 is rotatably mounted on the support frame 1, a driving shaft 6 driven by a driving motor 7 is rotatably mounted on the support frame 1, the driving shaft 6 is in driving connection with a screw tap 12 used for tapping the pipe member 13 through a transmission assembly, a lifting mechanism used for vertically driving the screw tap 12 is arranged on the support frame 1, and a clamping mechanism used for locking and fixing the pipe member 13 is arranged on the bearing plate 16.

This device will carry out the pipe fitting 13 centre gripping of tapping through the fixture that sets up and fix on loading board 16, and it is rotatory through the driving motor 7 drive shaft 6 that sets up, and the rotation of screw tap 12 is realized through drive assembly to drive shaft 6, and the elevating system who sets up drives screw tap 12 and moves down, realizes the inner wall tapping of pipe fitting 13.

Wherein, the transmission assembly who sets up includes the transmission sleeve pipe 10 with the coaxial fixed of pipe fitting 13, and inside drive shaft 6 extended to transmission sleeve pipe 10, the inside slip of transmission sleeve pipe 10 was inlayed and is equipped with the transmission strip 8 of evenly fixing at the 6 lateral walls of drive shaft, and drive transmission strip 8 is rotatory when drive shaft 6 is rotatory, and transmission strip 8 drives transmission sleeve pipe 10 and rotates, and then realizes that screw tap 12 is rotatory.

The lifting mechanism is used for driving the screw tap 12 to enable the screw tap to have vertical feeding amount relative to the pipe fitting 13, and specifically comprises a lifting frame 21 connected with a bearing of a transmission sleeve 10, a vertically arranged rack 11 is fixed on the lifting frame 21, a lifting gear 9 is meshed and connected onto the rack 11, a guide rod 2 is vertically fixed on the lifting frame 21, the guide rod 2 is sleeved with a sleeve 3 with the upper end fixed to the support frame 1, and a limiting spring 5 is fixed between the sleeve 3 and the guide rod 2.

Through the arrangement, the lifting gear 9 rotates to drive the rack 11 to move downwards, the rack 11 drives the lifting frame 21 to move downwards, and at the moment, the lifting frame 21 drives the transmission sleeve 10 to move downwards together with the screw tap 12, so that the pipe fitting 13 is tapped.

Example 2

In order to improve the efficiency of tapping the pipe 13, on the basis of embodiment 1, in addition, the support frame 1 is rotatably provided with a driven shaft 20 parallel to the pipe 13, a main gear 19 is fixedly sleeved on the driven shaft 20, a sub-gear 17 fixedly sleeved on the rotating shaft 18 is connected to the main gear 19 in a meshing manner, and a belt pulley mechanism 4 is connected between the driven shaft 20 and the driving shaft 6 in a transmission manner.

When the driving shaft 6 rotates, the driving shaft drives the driven shaft 20 to rotate through the belt pulley mechanism 4, so that the main gear 19 rotates, the main gear 19 drives the rotating shaft 18 to rotate through the secondary gear 17 in meshed connection with the main gear, so that the bearing plate 16 drives the pipe fitting 13 to rotate, and the rotating direction of the pipe fitting 13 is opposite to that of the screw tap 12, namely the downward feeding speed of the screw tap 12 relative to the pipe fitting 13 is accelerated, namely the tapping efficiency of the pipe fitting 13 is remarkably improved.

In order to clamp and fix the pipe 13, the device is further provided with a clamping mechanism, the clamping mechanism comprises two clamping plates 14 which are arranged on the bearing plate 16 in a sliding mode and are symmetrical relative to the pipe 13, and an arc groove 24 is formed in one opposite side of each clamping plate 14. A servo motor 15 is fixed on the bearing plate 16, a threaded rod I22 and a threaded rod II23 which are coaxially fixed and have opposite thread turning directions are connected to the servo motor 15 in a driving mode, the threaded rod I22 and the threaded rod II23 are respectively connected with a thread to penetrate through the two clamping plates 14 in a threaded mode, and a sliding block 25 which is embedded on the bearing plate 16 in a sliding mode is fixed on each clamping plate 14.

Through the setting, servo motor 15 is used for driving threaded rod I22 and threaded rod II23 synchronous rotation, and two splint 14 on threaded rod I22 and the threaded rod II23 move in opposite directions, and the arc groove 24 that sets up is used for holding pipe fitting 13, guarantees the inseparable laminating of splint 14 and pipe fitting 13, guarantees the firm centre gripping of pipe fitting 13, has promoted pipe fitting 13 tapping effect.

In summary, the pipe fitting 13 to be tapped is stably clamped by the clamping mechanism, so that the stability of the tapping process is ensured, the screw tap 12 is driven by the transmission assembly to rotate, the lifting mechanism drives the screw tap 12 to move downwards, so that the pipe fitting 13 is tapped, the bearing plate 16 drives the pipe fitting 13 to rotate in the direction opposite to the rotating direction of the screw tap 12, the tapping efficiency of the pipe fitting 13 is greatly improved, the labor input in the operation process is low, and the tapping quality is high.

It should be noted that, although the present specification describes embodiments, each embodiment does not include only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art, and the above-mentioned embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the claims of the technical solutions. It should be noted that, for those skilled in the art, various modifications, improvements and substitutions can be made without departing from the spirit of the invention, and all of them belong to the protection scope of the technical solution. The protection scope of this technical solution patent should be subject to the appended claims.

Claims

1. The utility model provides an internal thread tubulose spare inner wall chasing bar, includes support frame (1), rotates on support frame (1) and installs loading board (16) that are used for supporting pipe fitting (13), its characterized in that, rotate on support frame (1) and install drive shaft (6) by driving motor (7) driven, drive shaft (6) are connected with screw tap (12) that are used for the tapping to pipe fitting (13) through the drive assembly drive, be equipped with on support frame (1) with the elevating system to the vertical drive of screw tap (12), be equipped with on loading board (16) and be used for locking fixed fixture to pipe fitting (13).

2. The tapping device for the inner wall of an internally threaded tubular member according to claim 1, wherein the transmission assembly comprises a transmission sleeve (10) coaxially fixed with the tubular member (13), the driving shaft (6) extends into the transmission sleeve (10), and the transmission strip (8) uniformly fixed on the side wall of the driving shaft (6) is slidably embedded in the transmission sleeve (10).

3. The tapping device for the inner wall of the internally threaded tubular member according to claim 2, wherein the lifting mechanism comprises a lifting frame (21) connected with the bearing of the transmission sleeve (10), a vertically arranged rack (11) is fixed on the lifting frame (21), and a lifting gear (9) is engaged and connected on the rack (11).

4. The tapping device for the inner wall of the internally threaded tubular part according to claim 3, wherein a guide rod (2) is vertically fixed on the lifting frame (21), a sleeve (3) with the upper end fixed with the support frame (1) is sleeved on the guide rod (2), and a limiting spring (5) is fixed between the sleeve (3) and the guide rod (2).

5. The tapping device for the inner wall of an internally threaded tubular member according to claim 1, wherein the supporting frame (1) is rotatably provided with a driven shaft (20) parallel to the tubular member (13), the driven shaft (20) is sleeved and fixed with a main gear (19), the bottom of the bearing plate (16) is fixed with a rotating shaft (18), the main gear (19) is engaged and connected with a secondary gear (17) sleeved and fixed on the rotating shaft (18), and a belt pulley mechanism (4) is in transmission connection between the driven shaft (20) and the driving shaft (6).

6. The tapping device for the inner wall of an internally threaded tubular member according to claim 1, wherein said clamping means comprise two clamping plates (14) mounted slidably on the carrier plate (16) and symmetrically arranged with respect to the tubular member (13), the clamping plates (14) being provided with an arc-shaped groove (24) on opposite sides thereof.

7. The tapping device for the inner wall of the internally threaded tubular member as claimed in claim 1, wherein the bearing plate (16) is fixed with a servo motor (15), the servo motor (15) is drivingly connected with a threaded rod I (22) and a threaded rod II (23) which are coaxially fixed and have opposite thread directions, the threaded rod I (22) and the threaded rod II (23) are respectively and threadedly connected to penetrate through the two clamping plates (14), and the clamping plates (14) are fixed with sliders (25) which are slidably embedded in the bearing plate (16).