CN217990703U - Steel pipe thread machining device - Google Patents
Steel pipe thread machining device Download PDFInfo
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- CN217990703U CN217990703U CN202220751369.6U CN202220751369U CN217990703U CN 217990703 U CN217990703 U CN 217990703U CN 202220751369 U CN202220751369 U CN 202220751369U CN 217990703 U CN217990703 U CN 217990703U
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Abstract
The utility model discloses a steel pipe thread processingequipment, including thickening mould, drift mould, operation panel, drift mobility control mechanism, steel pipe conveying mechanism, the thickening mould includes first section thickening mould, second section thickening mould, third section thickening mould, fourth section thickening mould, the die cavity internal diameter of first section thickening mould is greater than the die cavity internal diameter of second section thickening mould, just the die cavity internal diameter of first section thickening mould is greater than the external diameter that API standard stipulates, first section thickening mould length is the complete screw thread minimum length LC of waiting to process the steel pipe screw thread, the die cavity internal diameter of second section thickening mould is greater than the die cavity internal diameter of third section thickening mould, the die cavity internal diameter of third section thickening mould is greater than the die cavity internal diameter of fourth section thickening mould; the thickening die is matched with the punch die. The utility model discloses can not only guarantee thickening external diameter quality, not exceed standard, can not reduce car silk production efficiency and qualification rate moreover.
Description
Technical Field
The utility model relates to a steel pipe thread processing device belongs to steel pipe processing technology field.
Background
The control of the thickened outer diameter is not ideal, the outer diameter is smaller, and the thread turning process can generate black buttons. The outer diameter is controlled a little bit more, there is super API standard quality risk. In order to guarantee the threading qualification rate (the medium petrochemical standard LC +2 teeth have higher requirements on the outer diameter size), the thickened outer diameter is basically controlled to be larger, the outer diameter of a part of pipe materials exceeds the API standard, in the threading process of the next procedure, the outer circle needs to be turned firstly, the part with the larger outer diameter is turned, the threading qualification rate is guaranteed, the time for turning the outer circle is increased by 5-8 seconds, the threading rhythm is prolonged, and the threading production efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the not enough that exists among the prior art, the utility model provides a steel pipe thread processingequipment, the utility model discloses can guarantee thickening external diameter quality, not exceed standard, can not reduce car silk production efficiency and qualification rate again.
The technical scheme is as follows: in order to achieve the above object, the utility model adopts the following technical scheme:
a steel pipe thread machining device comprises a thickening die, a punch die, an operating platform, a punch movement control mechanism and a steel pipe conveying mechanism, wherein the thickening die and the steel pipe conveying mechanism are installed on the operating platform; the thickening mold comprises a first section of thickening mold, a second section of thickening mold, a third section of thickening mold and a fourth section of thickening mold, wherein the inner diameter of a mold cavity of the first section of thickening mold is larger than the inner diameter of the mold cavity of the second section of thickening mold, the inner diameter of the mold cavity of the first section of thickening mold is larger than the outer diameter specified by an API standard, the length of the first section of thickening mold is the minimum length LC of the complete thread of the steel pipe thread to be processed, the inner diameter of the mold cavity of the second section of thickening mold is larger than the inner diameter of the mold cavity of the third section of thickening mold, and the inner diameter of the mold cavity of the third section of thickening mold is larger than the inner diameter of the mold cavity of the fourth section of thickening mold; the thickening die is matched with the punch die.
Preferably: the punch moving control mechanism comprises a first guide rail, a first punch support, a first screw rod, a first slide block, a first motor and a hydraulic oil cylinder, the first guide rail and the first motor are installed on an operation table, the first slide block is installed on the first guide rail and is in sliding connection with the first guide rail, the first motor is in driving connection with the first slide block through the first screw rod, the first punch support is fixedly installed on the first slide block, one end of the hydraulic oil cylinder is fixedly connected with the punch support, and the other end of the hydraulic oil cylinder is fixedly connected with a punch die.
Preferably: the steel pipe conveying mechanism comprises a second guide rail, a second lead screw, a second sliding block, a second motor, a bracket and a support frame, wherein the second guide rail and the second motor are installed on the operating platform, the second sliding block is installed on the second guide rail, the second sliding block is in sliding connection with the second guide rail, the second motor is in driving connection with the second sliding block through the second lead screw, the support frame is fixedly installed on the second sliding block, the bracket is fixedly installed on the support frame, and a baffle is arranged on the bracket.
Preferably, the following components: the steel pipe conveying mechanism comprises a rotating roller and a rotating motor, the supporting frame is a U-shaped supporting frame, the rotating roller is arranged on the surface of the U-shaped supporting frame, the rotating motor is installed on the supporting frame, and the rotating motor is in transmission connection with the rotating roller.
Preferably, the following components: the thickening die and the punch die are of concentric structures.
Compared with the prior art, the utility model, following beneficial effect has:
1) The utility model discloses the external diameter size control of the complete screw thread minimum length LC within range of thickening end is on API external diameter upper limit, the complete screw thread minimum length LC within range of thickening end control API median beyond. The turning of the thread does not need to be performed, the turning of the thread is promoted for 8-10 seconds, and the occurrence of black buttons is reduced. The quality risk of the outer diameter out of tolerance is solved. The thread turning process does not need peeling operation, and the thread turning rhythm is improved by 8-10 seconds. The occurrence of black leather buttons is reduced, and the threading qualification rate is improved.
Drawings
Fig. 1 is a schematic view of a thickening mold structure according to the present embodiment.
FIG. 2 is a schematic structural view of a steel pipe thread machining tool.
Detailed Description
The invention will be further elucidated with reference to the drawings and specific embodiments, it being understood that these examples are intended to illustrate the invention only and are not intended to limit the scope of the invention, and that modifications to the various equivalent forms of the invention, which may occur to those skilled in the art after reading the present invention, fall within the scope of the invention as defined in the claims appended hereto.
A steel pipe thread machining process comprises the following steps:
And 2, heating the thickened end of the steel pipe to be processed. The thickened end of the steel pipe to be processed is heated to 1150-1250 ℃.
And 3, conveying the thickened end of the steel pipe to be processed into the thickened die designed in the step 1.
And 4, starting the punch die, and pushing the thickened end by the punch die to enable the thickened end to form a two-section type in a die cavity of the thickened die, wherein the length of the first section of the thickened end is the minimum length LC of the complete thread of the steel pipe thread to be processed as shown in figure 1. And the outer diameter of the first section of the thickened end is larger than the outer diameter specified by the API standard. The outer diameter of the second section of the thickened end is equal to the outer diameter specified by the API standard.
And 5, turning the first section of the thickened end to perform thread machining, and finishing the machining of the steel pipe.
A steel pipe thread machining tool is shown in figures 1 and 2 and comprises a thickening die 1, a punch die 2, an operating platform 3, a punch movement control mechanism 4 and a steel pipe conveying mechanism 5, wherein the thickening die 1 and the steel pipe conveying mechanism 5 are installed on the operating platform 3, the punch die 2 is installed on the operating platform 3 through the punch movement control mechanism 4, the thickening die 1 and the punch die 2 are oppositely arranged, and the discharge end of the steel pipe conveying mechanism 5 is oppositely arranged with the feed end of the thickening die 1; the thickening mould 1 comprises a first section of thickening mould 11, a second section of thickening mould 12, a third section of thickening mould 13 and a fourth section of thickening mould 14, wherein the inner diameter of a mould cavity of the first section of thickening mould 11 is larger than the inner diameter of the mould cavity of the second section of thickening mould 12, the inner diameter of the mould cavity of the first section of thickening mould 11 is larger than the outer diameter specified by API standard, the length of the first section of thickening mould 11 is the minimum complete thread length LC of the steel pipe thread to be processed, the inner diameter of the mould cavity of the second section of thickening mould 12 is larger than the inner diameter of the mould cavity of the third section of thickening mould 13, and the inner diameter of the mould cavity of the third section of thickening mould 13 is larger than the inner diameter of the mould cavity of the fourth section of thickening mould 14; thickening mould 1 and drift mould 2 phase-match, thickening mould 1, drift mould 2 are the concentric structure.
The punch moving control mechanism 4 comprises a first guide rail 41, a punch support 42, a first screw rod 43, a first slide block 44, a first motor 45 and a hydraulic oil cylinder 47, wherein the first guide rail 41 and the first motor 45 are installed on the operating platform 3, the first slide block 44 is installed on the first guide rail 41, the first slide block 44 is in sliding connection with the first guide rail 41, the first motor 45 is in driving connection with the first slide block 44 through the first screw rod 43, the punch support 42 is fixedly installed on the first slide block 44, one end of the hydraulic oil cylinder 47 is fixedly connected with the punch support 42, and the other end of the hydraulic oil cylinder 47 is fixedly connected with the punch die 2.
The steel pipe conveying mechanism 5 comprises a second guide rail 51, a second screw rod 52, a second sliding block 53, a second motor 54, a bracket 56, a supporting frame 57, a rotating roller 58 and a rotating motor 59, the second guide rail 51 and the second motor 54 are installed on the operating platform 3, the second sliding block 53 is installed on the second guide rail 51, the second sliding block 53 is in sliding connection with the second guide rail 51, the second motor 54 is in driving connection with the second sliding block 53 through the second screw rod 52, the supporting frame 57 is fixedly installed on the second sliding block 53, the bracket 56 is fixedly installed on the supporting frame 57, and the bracket 56 is provided with a baffle 55. The support frame 57 is a U-shaped support frame, the rotating roller 58 is arranged on the U-shaped surface of the U-shaped support frame, the rotating motor 59 is installed on the support frame 57, and the rotating motor 59 is in transmission connection with the rotating roller 58.
When the device is used, a steel pipe to be processed is placed on the bracket 56, the pipe end of the steel pipe to be processed is heated to 1200 +/-50 degrees, the motor II 54 is started, the motor II 54 drives the screw rod II 52 to rotate, the screw rod II 52 rotates to drive the sliding block II 53 to slide on the guide rail II 51 until the pipe end of the steel pipe to be processed enters the thickening die 1, at the moment, the motor I45 is started, the motor I45 drives the screw rod I43 to rotate, the screw rod I43 rotates to drive the sliding block I44 to slide on the guide rail I41 until the punch die 2 points to the thickening die 1, and the thickening die 1 and the punch die 2 are oppositely arranged; starting a hydraulic oil cylinder 47, pushing a punch die 2 to a thickening die 1 by the hydraulic oil cylinder 47, extruding the pipe end of the steel pipe to be processed by the mutual matching between the punch die 2 and the thickening die 1 to enable the pipe end of the steel pipe to be processed to form a two-section size in a die cavity, then retreating the hydraulic oil cylinder 47, bringing the punch die 2 back, and reversely rotating a motor I45 to bring the punch die 2 back to an initial position; and then the second motor 54 continues to rotate positively, the steel pipe to be processed is extended out of the thickening die 1, and the extended thickening die 1 is taken out for the next process. Finally, the second motor 54 rotates reversely to bring the bracket 56 back to the initial position for processing the next steel pipe to be processed.
The utility model discloses according to screw thread LC and L4 length design thickening mould size, two-section type length and external diameter in the die cavity heat the steel pipe end 1200 degrees 50, send to the mould in, promote the pipe end through the drift mould, make the pipe end of steel pipe form two-section type size at the die cavity. The first section length is the thread LC length, the outer diameter is larger than the API standard, the black skin buckle is avoided when the thread processing is carried out, and the outer diameter of the second section length is within the API standard range and meets the quality requirement. The thread turning device has the advantages that the thread turning LC range is free of black buttons, namely the thickened outer diameter in the LC range is large, even the API upper limit is exceeded (the part with the outer diameter exceeding the turning can be turned off during thread turning), the thickened outer diameter is controlled in the API range outside the LC range, and the thread machining quality is not influenced even if the outer diameter is small.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (5)
1. The utility model provides a steel pipe thread processingequipment which characterized in that: the punching die comprises a thickening die (1), a punching die (2), an operating platform (3), a punching movement control mechanism (4) and a steel pipe conveying mechanism (5), wherein the thickening die (1) and the steel pipe conveying mechanism (5) are installed on the operating platform (3), the punching die (2) is installed on the operating platform (3) through the punching movement control mechanism (4), the thickening die (1) and the punching die (2) are arranged oppositely, and the discharge end of the steel pipe conveying mechanism (5) is arranged oppositely to the feed end of the thickening die (1); the thickening die (1) comprises a first section of thickening die (11), a second section of thickening die (12), a third section of thickening die (13) and a fourth section of thickening die (14), wherein the inner diameter of a die cavity of the first section of thickening die (11) is larger than the inner diameter of the die cavity of the second section of thickening die (12), the inner diameter of the die cavity of the first section of thickening die (11) is larger than the outer diameter specified by an API standard, the length of the first section of thickening die (11) is the minimum complete thread length LC of the steel pipe thread to be processed, the inner diameter of the die cavity of the second section of thickening die (12) is larger than the inner diameter of the die cavity of the third section of thickening die (13), and the inner diameter of the die cavity of the third section of thickening die (13) is larger than the inner diameter of the die cavity of the fourth section of thickening die (14);
the thickening die (1) is matched with the punch die (2).
2. A threading apparatus for steel pipes according to claim 1, characterized in that: the punch movement control mechanism (4) comprises a first guide rail (41), a punch support (42), a first lead screw (43), a first slider (44), a first motor (45) and a hydraulic oil cylinder (47), wherein the first guide rail (41) and the first motor (45) are installed on the operating platform (3), the first slider (44) is installed on the first guide rail (41), the first slider (44) is in sliding connection with the first guide rail (41), the first motor (45) is in driving connection with the first slider (44) through the first lead screw (43), the punch support (42) is fixedly installed on the first slider (44), one end of the hydraulic oil cylinder (47) is fixedly connected with the punch support (42), and the other end of the hydraulic oil cylinder is fixedly connected with the punch mold (2).
3. A steel pipe threading device as claimed in claim 2, characterized in that: the steel pipe conveying mechanism (5) comprises a second guide rail (51), a second screw rod (52), a second sliding block (53), a second motor (54), a bracket (56) and a supporting frame (57), the second guide rail (51) and the second motor (54) are installed on the operating platform (3), the second sliding block (53) is installed on the second guide rail (51), the second sliding block (53) is in sliding connection with the second guide rail (51), the second motor (54) is in driving connection with the second sliding block (53) through the second screw rod (52), the supporting frame (57) is fixedly installed on the second sliding block (53), the bracket (56) is fixedly installed on the supporting frame (57), and a baffle (55) is arranged on the bracket (56).
4. A threading apparatus for steel pipes according to claim 3, characterized in that: the steel pipe conveying mechanism (5) comprises a rotating roller (58) and a rotating motor (59), the supporting frame (57) is a U-shaped supporting frame, the rotating roller (58) is arranged on the surface of a U shape of the U-shaped supporting frame, the rotating motor (59) is installed on the supporting frame (57), and the rotating motor (59) is in transmission connection with the rotating roller (58).
5. A threading apparatus for steel pipes according to claim 4 characterized in that: the thickening die (1) and the punch die (2) are of concentric structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220751369.6U CN217990703U (en) | 2022-03-31 | 2022-03-31 | Steel pipe thread machining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220751369.6U CN217990703U (en) | 2022-03-31 | 2022-03-31 | Steel pipe thread machining device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217990703U true CN217990703U (en) | 2022-12-09 |
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ID=84286692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220751369.6U Active CN217990703U (en) | 2022-03-31 | 2022-03-31 | Steel pipe thread machining device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217990703U (en) |
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2022
- 2022-03-31 CN CN202220751369.6U patent/CN217990703U/en active Active
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