CN218575178U

CN218575178U - Taper pipe thread threading machine

Info

Publication number: CN218575178U
Application number: CN202221682997.XU
Authority: CN
Inventors: 周桢皓
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2023-03-07
Anticipated expiration: 2032-06-24

Abstract

The utility model discloses a taper pipe thread tapper, which comprises a frame, be equipped with body chuck and planetary gear case in the frame, be provided with the worm gear case on the planetary gear case, transmission shaft connecting plate dental floss assembly in the planetary gear case, the transmission shaft tip is provided with bearing C in the planetary gear case, feed screw suit is on bearing C in the worm gear case, but transmission shaft and feed screw axial displacement, the extension double-screw bolt passes the feed screw rod and fixes on the transmission shaft, the feed screw rod can rotate around the extension double-screw bolt, tapering round pin axle mount is fixed on the transmission cover in the planetary gear case, be provided with the tapering round pin axle on the tapering round pin axle mount, it fixes on the die head mount to trail the frame, be provided with the tracking wheel on the frame, it sets up with tapering round pin axle spirit with the tapering round pin axle to trail the wheel. The taper pipe thread threading machine can enlarge the thread pitch of the feed threads, increase the torsion resistance of the taper pipe thread threading machine, and reduce the abrasion of the feed threads.

Description

Taper pipe thread threading machine

Technical Field

The utility model relates to a mantle fiber machine especially relates to a mantle fiber machine for processing taper pipe screw thread.

Background

The patent No. 201810115067.8 taper pipe thread threading machine discloses a scheme of taper pipe thread machining equipment. The threading machine scheme solves the defects of the traditional threading machine and has the advantages of high cutting efficiency, low cutter damage rate, capability of machining threads with various specifications and the like. The threading machine of this solution, although having many advantages, also presents some inevitable drawbacks in practical use.

In the scheme, the transmission shaft and the die head are directly and rigidly connected, and the motion amount between the transmission shaft and the die head is synchronous, so that the thread pitch of the feed thread section on the transmission shaft and the thread pitch on the die head assembly have to be of the same specification, otherwise, the processing purpose cannot be realized. In actual processing, the thread pitch of a standard taper pipe with the pipe diameter of 1 to 4 inches is 2.309 mm, and the thread form is very small. Because the thread pitch is small, the torsion resistance of the feed thread is poor, and after the threading machine of the scheme is used for a long time, the thread on the feed thread section is easy to wear, thereby influencing the service life of the machine.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that reduce the wearing and tearing of torsion to the feed screw that produces in the taper pipe screw thread course of working.

In order to solve the technical problem, the taper pipe thread threading machine comprises a rack, wherein a pipe body chuck is arranged on one side of the rack, a planetary gear box is fixedly arranged on the other side of the rack, a worm gear box is fixedly arranged on the other side of the planetary gear box, one end of a transmission shaft in the planetary gear box is fixedly connected with a plate thread assembly, the other end of the transmission shaft in the planetary gear box is provided with a bearing C, one end of a feed screw in the worm gear box is sleeved on the bearing C, the transmission shaft and the feed screw can move axially, an extension screw penetrates through the feed screw and is fixed on the transmission shaft, the feed screw can rotate around the extension screw, a taper pin shaft fixing frame is fixed on the transmission sleeve in the planetary gear box, a pin shaft taper is arranged on the taper pin shaft fixing frame, a tracking frame is fixed on the plate thread fixing ring, and a tracking wheel is arranged on the tracking frame and is arranged in the same level with the taper pin shaft.

According to the further improvement of the technical scheme, a travel switch fixing frame is fixedly arranged on the worm gear case, travel switches are respectively arranged at the front and the back of the travel switch fixing frame, a travel switch control frame is fixed on a feed screw through a bearing F, and the travel switch control frame is positioned between the travel switches at two sides.

According to the further improvement of the technical scheme, the planetary gear box comprises a gear box seat, the gear box seat is fixed on the rack, a bearing A is arranged in the gear box seat, the bearing A is sleeved on the transmission sleeve, and a transmission shaft is arranged in the transmission sleeve; the transmission shaft is provided with a sun gear, the sun gear is meshed with the planet gear, the planet gear is arranged in a gear ring, the gear ring is fixed in a gear box cover, the planet gear is connected with a planet carrier through a pin shaft A, the planet carrier is connected with a feed screw in an axial sliding manner, a bearing B is sleeved on the planet carrier, the bearing B is arranged in the gear box cover, and the gear box cover is fixed on a gear box base.

According to the further improvement of the technical scheme, the worm gear box comprises a worm gear box body, a bearing D is arranged in the worm gear box body, the bearing D is sleeved on the worm gear, the worm gear is provided with a worm, the worm gear is sleeved on the feed screw, and the worm gear is in meshed connection with the feed screw through threads.

According to the further improvement of the technical scheme, a supporting seat is arranged between the worm gear case and the travel switch fixing frame, the supporting seat is fixed on the worm gear case, the travel switch is fixed on the supporting seat, a bearing E is arranged in the supporting seat, and the bearing E is sleeved on the feed screw.

In the further improvement of the technical scheme, a bearing G is arranged between the lengthened stud and the feed screw.

According to the technical scheme, the feed screw is composed of a connecting section, a threaded section and an extension section, the shaft diameter of the connecting section is matched with the inner diameter of the planet carrier, and the shaft diameter of the extension section is smaller than that of the threaded section.

According to the further improvement of the technical scheme, the spring is arranged on the inner side of the taper pin shaft.

In a further improvement of the above technical solution, the transmission sleeve is connected with the motor through a gear.

The utility model discloses a taper pipe screw thread mantle fiber machine separates transmission shaft and feed screw through planetary gear, make the transmission shaft realize the syntropy not fast with the feed screw, the speed of feed screw is the reduction ratio's that the transmission shaft passes through after the planetary gear slows down multiple, the screw pitch on the feed screw is the multiple of the planetary gear reduction ratio of screw pitch on the die head assembly, can realize enlargeing the pitch of feed screw through this design, and then increase its torsion resistance's ability, reduce the wearing and tearing of feed screw.

Drawings

Fig. 1 is a schematic view of the overall structure of a taper pipe threading machine in a longitudinally placed state.

FIG. 2 is an enlarged view of the connection state of the transmission shaft and the feed screw.

Fig. 3 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A in fig. 1.

FIG. 4 is an enlarged view of the feed screw.

Detailed Description

Referring to fig. 1 to 4, the taper pipe threading machine of the present invention will be described in detail.

In the scheme, the outer side refers to the side of the same component which is relatively close to the pipe body to be processed, and the inner side refers to the side of the same component which is relatively far away from the pipe body to be processed.

The taper pipe thread threading machine mainly comprises a frame 43, a die head assembly, a planetary gear box, a worm gear box and a stroke limiting device.

The die head assembly comprises a die 1, a die head front cover 2, a die head curve disc 3, a die head front cover cutter falling spring 4, a die head rear seat 5, a tracking frame 49 and a die head fixing ring, wherein the die head assembly in the scheme is identical to the existing die head assembly in arrangement modes of the die 1, the die head front cover 2, the die head curve disc 3, the die head front cover cutter falling spring 4 and the die head rear seat 5, but the difference lies in that the tracking frame 49 is not directly arranged on the die head front cover 2 but is fixed on the die head fixing ring, and the die head fixing ring penetrates through the die head curve disc 3 and the die head rear seat 5 to be fixed on the die head front cover 2. The design reduces the radial length of the tracking frame 49, simultaneously shortens the radial length of the taper pin shaft fixing frame 44 and the horizontal distance between the tracking frame 49 and the taper pin shaft fixing frame 44, improves the stability and reduces the potential safety hazard.

The die head rear seat 5 is fixed on a fixing plate 7 through a fixing bolt 6, the fixing plate 7 is sleeved on a shaft neck at the outer side end of a transmission shaft 12, and the fixing plate 7 and the transmission shaft are connected through a flat key A8.

The gear box base 42 is fixed on one side of the frame 43 through a bolt A10, and a pipe clamp is arranged on the other side of the frame 43, wherein the pipe clamp is omitted from the figure 1, and the center of the pipe clamp is on the same central line with the transmission shaft 12.

The bearing A13 is fixed in the gear box seat 42, the bearing A13 is sleeved on the transmission sleeve 11, the transmission sleeve 11 is sleeved on the transmission shaft 12, and the transmission sleeve 11 and the transmission shaft 12 are connected through a flat key C14. The driving sleeve 11 and the driving shaft 12 both penetrate out of the gear box seat 42. The outer end of the transmission sleeve 11 is fixed with a taper pin shaft fixing frame 44 which is connected with the taper pin shaft fixing frame through a flat key B9. The inner end of the driving sleeve 11 is connected with a motor through a gear, and the part is omitted in figure 1.

The taper pin shaft fixing frame 44 is provided with a taper pin shaft 46, a spring 45 is arranged between the taper pin shaft 46 and the taper pin shaft fixing frame 44, and the spring 45 can realize the transverse movement of the taper pin shaft 46. The taper pin shaft 46 and the tracking wheel 47 are arranged horizontally and are in contact with each other, the tracking wheel 47 is arranged horizontally, and the tracking wheel 47 is fixed on a tracking frame 49 through a pin shaft B48.

The gear case cover 41 is fixed to the gear case base 42 by bolts B15, and the gear case cover 41 and the gear case base 42 form a planetary gear case. A bearing B18 is fixed inside the gear case cover 41, and the bearing B18 is sleeved on the planet carrier 19. The planet carrier 19 is sleeved on the inner section of the transmission shaft 12. The inner section of the transmission shaft 12 is provided with a sun gear which can be directly formed on the transmission shaft 12 by processing, and the transmission shaft 12 can be sleeved with the existing sun gear. The three planetary gears 16 are in external meshing connection with the inner side section of the transmission shaft 12, the planetary gears 16 are in internal meshing connection with the gear ring 50, the gear ring 50 is fixed in the gear box cover 41, and the planetary gears 16 and the gear ring 50 are on the same longitudinal plane. The ring gear 50 is arranged between the gear sleeve 11 and the planet carrier 19. The planetary gears 16 and the carrier 19 are connected by a pin a 17.

The worm gear case 37 is fixed on the gear case cover 41 through a bolt C22, and the connecting plate 21 is arranged between the worm gear case 37 and the gear case cover 41, so that the connecting plate 21 can increase the stability between the worm gear case 37 and the gear case cover 41. The bearings D23 are symmetrically fixed in the worm wheel box body 37, the bearings D23 are sleeved on two sides of the worm wheel 24, the worm wheel is provided with the worm 38, the number Z =1 of the heads of the worm 38, and the lead angle r is less than 3 degrees and less than 30 minutes, so that the self-locking condition of the worm wheel and the worm is met. The worm gear 24 is sleeved on the feed screw 39. The feed screw 39 is of a hollow structure, the feed screw 39 is composed of a connecting section 391, a thread section 392 and an extending section 393, wherein the thread section 392 is provided with threads, and the thread section 392 is in thread engagement connection with the worm wheel 24.

The connecting section 391 is inserted into the planet carrier 19, the end of the connecting section 391 is sleeved on a bearing C20, the bearing C20 is sleeved on a journal at the inner side end of the transmission shaft 12, and the connecting section 391 and the planet carrier 19 are fixedly connected through a flat key D40. The axial diameter of the extension 393 is smaller than that of the threaded section 392, and the axial diameter of the extension 393 is smaller, so that the extension can be conveniently installed with the worm wheel 24. The outer end of the extension 393 is provided with a bearing G31, and an extension stud 32 is inserted into the bearing G31 and the feed screw 39 and fixed at the inner end of the transmission shaft 12.

The supporting seat 26 is fixed on the worm gear box body 37 through a bolt D25, a bearing E27 is fixed in the supporting seat 26, the bearing E27 is sleeved on the extension section 393, and the stability of the feed screw 39 can be improved through the supporting seat 26 and the bearing E27.

The travel switch fixing bracket 34 is fixed to the support base 26 by a bolt E35. The travel switch control device is characterized in that a travel switch A36 is arranged on the front side of the travel switch fixing frame 34, a travel switch B33 and a travel switch control frame 30 are arranged on the rear side of the travel switch fixing frame 34 and fixed to the extension section 393 through a bearing F29, the bearing F29 is sleeved on the extension section 393, two sides of the bearing F29 are fixed through clamp springs 28, and the travel switch control frame 30 is located between the travel switch A36 and the travel switch B33.

The working principle is as follows:

the left side of the frame 43 is provided with a pipe body chuck which clamps a pipe body to be processed to ensure that the axis of the pipe body is coaxial with the axis of the transmission shaft 12. The servo motor or the stepping motor drives the transmission sleeve 11 to rotate through transmission parts such as a transmission gear or a transmission belt, and the transmission sleeve 11 drives the transmission shaft 12 to rotate through a flat key C14. The transmission shaft 12 drives the planetary gear 16 to rotate in the gear ring 50, the planetary gear 16 drives the planet carrier 19 to rotate through the pin shaft A17, and through speed conversion of the planetary gear 16, the rotation speed of the planet carrier 19 is slower than that of the transmission shaft 12. The planet carrier 19 drives the feed screw 39 to rotate through the flat key D40, the upper thread section 392 of the feed screw 39 rotates on the worm wheel 24 to further enable the feed screw 39 to axially move, the feed screw 39 pushes the transmission shaft 12 to axially move, the die head assembly at the outer side end of the transmission shaft 12 is close to the pipe body and is machined, and the taper pin shaft fixing frame 44 is fixed on the transmission sleeve 11, so that the taper pin shaft 46 and the tracking wheel 47 are gradually far away during machining, and the die head assembly completes taper machining. The feed screw 39 drives the travel switch control frame 30 to move back and forth, and when the travel switch control frame 30 contacts the travel switch A36, the servo motor or the stepping motor stops rotating; and starting the withdrawing motor to drive the worm 38 to return the feed screw 39 to the original position, and stopping the withdrawing motor after the travel switch control frame 30 contacts the travel switch B33.

The gear ratio of the sun gear and the planetary gear 16 is adjusted, so that the transmission shaft 12 and the feed screw 39 form different rotation speed ratios, and the axial moving speed between the transmission shaft and the feed screw is the same, so that the thread pitch to be processed and the thread pitch on the feed screw 39 form the same ratio. That is, the coarse thread size on the feed screw 39 can match the fine thread size of the machined pipe body. The torque resistance of the thread can be improved by enlarging the thread pitch of the feed thread section, and the service life is prolonged.

Claims

1. Taper pipe screw mantle fiber machine, including the frame, frame one side is provided with body chuck, its characterized in that: the planetary gearbox is fixedly arranged on the other side of the rack, a worm gear box is fixedly arranged on the other side of the planetary gearbox, one end of a transmission shaft in the planetary gearbox is fixedly connected with a plate tooth head assembly, a bearing C is arranged on the other end of the transmission shaft in the planetary gearbox, one end of a feed screw in the worm gear box is sleeved on the bearing C, the transmission shaft and the feed screw can move axially, an extension stud penetrates through the feed screw and is fixed on the transmission shaft, the feed screw can rotate around the extension stud, a taper pin shaft fixing frame is fixed on the transmission sleeve in the planetary gearbox, a taper pin shaft is arranged on the taper pin shaft fixing frame, a tracking frame is fixed on the plate tooth head fixing ring, a tracking wheel is arranged on the tracking frame, and the tracking wheel and the taper pin shaft are arranged in the same level.

2. The taper pipe threading machine according to claim 1, wherein: the travel switch control frame is fixed on the feed screw through a bearing F, and is positioned between the travel switches at two sides.

3. The taper pipe threading machine according to claim 1 or 2, wherein: the planetary gear box comprises a gear box seat, the gear box seat is fixed on the rack, a bearing A is arranged in the gear box seat, the bearing A is sleeved on a transmission sleeve, and a transmission shaft is arranged in the transmission sleeve; the transmission shaft is provided with a sun gear, the sun gear is meshed with the planet gear, the planet gear is arranged in a gear ring, the gear ring is fixed in a gear box cover, the planet gear is connected with a planet carrier through a pin shaft A, the planet carrier is connected with a feed screw in an axial sliding manner, a bearing B is sleeved on the planet carrier, the bearing B is arranged in the gear box cover, and the gear box cover is fixed on a gear box base.

4. The taper pipe threading machine according to claim 1 or 2, wherein: the worm gear box comprises a worm gear box body, a bearing D is arranged in the worm gear box body, the bearing D is sleeved on a worm gear, a worm is arranged on the worm gear, the worm gear is sleeved on a feed screw, and the worm gear is connected with the feed screw in a threaded meshing manner.

5. The taper pipe threading machine according to claim 2, wherein: a supporting seat is arranged between the worm gear case and the travel switch fixing frame, the supporting seat is fixed on the worm gear case, the travel switch is fixed on the supporting seat, a bearing E is arranged in the supporting seat, and the bearing E is sleeved on the feed screw.

6. The taper pipe threading machine according to claim 1 or 2, wherein: and a bearing G is arranged between the lengthened stud and the feed screw.

7. The taper pipe threading machine according to claim 3, wherein: the feed screw is composed of a connecting section, a thread section and an extension section, the shaft diameter of the connecting section is matched with the inner diameter of the planet carrier, and the shaft diameter of the extension section is smaller than that of the thread section.

8. The taper pipe threading machine of claim 7, wherein: the worm gear box comprises a worm gear box body, a bearing D is arranged in the worm gear box body, the bearing D is sleeved on a worm gear, a worm is arranged on the worm gear, the worm gear is sleeved on a feed screw, and the worm gear is connected with the feed screw in a threaded meshing manner.

9. The taper pipe threading machine according to claim 8, wherein: and a spring is arranged on the inner side of the taper pin shaft.

10. The taper pipe threading machine of claim 9, wherein: the transmission sleeve is connected with the motor through a gear.