CN219541586U - Novel external thread full-expansion thread rolling machine head - Google Patents
Novel external thread full-expansion thread rolling machine head Download PDFInfo
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- CN219541586U CN219541586U CN202122812526.8U CN202122812526U CN219541586U CN 219541586 U CN219541586 U CN 219541586U CN 202122812526 U CN202122812526 U CN 202122812526U CN 219541586 U CN219541586 U CN 219541586U
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- rib
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a novel external thread full-expansion thread rolling machine head which comprises a fixed base plate, wherein a rib stripping positioning plate is arranged on the side face of the fixed base plate, the rib stripping positioning plate is in rotary connection with the fixed base plate, a pressure spring column spring for rib stripping is arranged on the inner side of the rib stripping positioning plate, a cutter mounting seat is arranged on the side face of the rib stripping positioning plate, the cutter mounting seats are distributed at equal intervals around the axis of the rib stripping positioning plate, and the thread rolling positioning plate is arranged on the side face of the fixed base plate. The rib stripping positioning disk and the thread rolling positioning disk are directly adjusted in an involute adjusting mode, scale marks are printed on the outer circle surfaces of the thread rolling positioning disk and the rib stripping positioning disk, adjustment is convenient and quick, the size is linearly adjusted, and the size integrity is ensured; by adopting the cylindrical thread rolling wheel seat, the structure is simple, the rolling direction of the thread rolling wheel is consistent with the rotation direction of the thread of the processed thread head, and the precision of the processed thread is high and the quality stability is high.
Description
Technical Field
The utility model relates to the technical field of thread rolling machines, in particular to a novel external thread full-expansion thread rolling machine head.
Background
The thread rolling machine is a multifunctional cold extrusion forming machine tool, and can carry out thread, twill rolling and other treatments on a workpiece in a cold state within the rolling force range; the machine has a safe and reliable electrohydraulic execution and control system, and each working cycle can be selected in three modes of manual mode, semi-automatic mode and automatic mode. The rolling thread cold rolling process is an advanced non-cutting process, can effectively improve the internal and surface quality of the workpiece, can obviously improve the fatigue strength and the torsional strength of the workpiece due to radial compressive stress generated during processing, and is an ideal process with high efficiency, energy conservation and low consumption.
However, the existing processing scheme has the problems that reversing and returning are needed after the external threads of the steel bars are formed by rolling, so that the processing time is wasted, and consumable products such as thread rolling wheels are wasted; in addition, because the reverse wire-withdrawing is needed, the processing time is wasted, the consumable products such as a wire rolling wheel are wasted, the wire rolling machine head accessory is complicated, the structure is unreasonable, the machine head accumulation error is overlarge due to the fact that the accessory is too many because of the unreasonable internal adjustment, the processing is unstable, and the adjustment is frequent.
Disclosure of Invention
The utility model aims to provide a novel external thread full-expansion thread rolling machine head, which aims to improve the problems that the existing processing scheme needs to reverse and return after the external thread of a reinforcing steel bar is rolled and formed, so that the processing time is wasted and consumable products such as a thread rolling wheel are wasted; in addition, because the reversing yarn is needed, the processing time is wasted, the consumable products such as a yarn rolling wheel are wasted, the yarn rolling machine head accessory is complicated, the structure is unreasonable, and the machine head accumulation error is overlarge, the processing is unstable and the adjustment is frequent due to the fact that the internal adjustment is not intuitive and the accessory is too many.
The utility model is realized in the following way:
the novel external thread full-expansion thread rolling machine head comprises a machine head main body, wherein a cutter mounting seat and a thread rolling wheel seat are arranged on the machine head main body, springs are arranged on two side surfaces of the cutter mounting seat and the thread rolling wheel seat, the cutter mounting seat and the thread rolling wheel seat are always under the action of spring pressure, a fixed base plate which is not rotatable is arranged on the outer side of the cylindrical surface of the machine head main body, a rib stripping positioning plate and a thread rolling positioning plate are respectively arranged on two sides of the fixed base plate, the rib stripping positioning plate and the thread rolling positioning plate are respectively connected by virtue of a rib stripping set screw and a thread rolling set screw, the rib stripping set screw and the thread rolling set screw are respectively loosened, the rib stripping positioning plate and the thread rolling positioning plate can respectively rotate in the center of the machine head main body, and the rib stripping size and the thread rolling size are adjusted by virtue of involute curves of inner holes of the rib stripping positioning plate and the thread rolling positioning plate; through rotatory thread rolling aircraft nose forward and retreating, fixed basal disc outer edge respectively with close the piece, shell the rib and open the piece, the piece touches is opened to the thread rolling, fixed basal disc and shell rib positioning disk and close the thread rolling positioning disk along thread rolling aircraft nose axial displacement, cutter mount pad and thread rolling wheel seat open in proper order along the thread rolling aircraft nose radially and close, the thread rolling aircraft nose in rotation like this can process the external screw thread of reinforcing bar and shell rib sword and thread rolling wheel and expand and withdraw, this aircraft nose shell rib positioning disk and thread rolling positioning disk adopts involute adjustment mode, the adjustment is direct and efficient, the size is accomplished the linear adjustment and is guaranteed dimensional integrity, adopt cylindrical thread rolling wheel seat, simple structure, thread rolling wheel rolling direction is unanimous with the screw of processing spinneret, the processing screw thread precision is high, high quality stability.
Furthermore, the first adjusting scale marks are arranged on the outer side of the rib stripping fixing disc, and the rib stripping scale marks are arranged on the outer side of the rib stripping fixing disc, so that the rib stripping fixing disc is more accurate and rapid to adjust.
Further, the thread rolling adjustment scale mark has been seted up to the outside of fixed base plate, the second adjustment scale mark has been seted up to the outside of thread rolling positioning plate, sets up through this and is more accurate swift for letting the regulation of thread rolling positioning plate.
Further, the side of shell the rib positioning disk has seted up first adjustment tank, the shape of first adjustment tank sets up to arc structure, and first adjustment tank is around shell the axle center equidistant distribution of rib positioning disk, be provided with on the shell the rib positioning disk and shell the rib holding screw, shell interconnect between rib holding screw and the shell the rib fixed disk, through setting up like this for the position of the regulation cutter mount pad of being convenient for to can open the rib operation to the reinforcing bar of different diameters.
Furthermore, the rib stripping knife is arranged at one end of the knife mounting seat, the rib stripping knife is fixedly connected with the knife mounting seat, and a rib stripping knife assembling and disassembling hole is formed at one end of the knife mounting seat, so that rib stripping operation is conveniently carried out on the steel bars.
Furthermore, the machine head main body is connected with a compression spring column spring for thread rolling in an inserting mode, one end of the compression spring column spring for thread rolling is provided with a compression spring piece, and the position of the thread rolling wheel seat is limited conveniently through the arrangement, so that the thread rolling wheel seat can be opened after thread opening is completed, and the steel bar after the thread opening is completed can be discharged more conveniently.
Further, the second regulating groove has been seted up to the side of thread rolling positioning disk, the shape of second regulating groove sets up to arc structure, and the equidistant distribution of axle center around the thread rolling positioning disk of second regulating groove, one side of thread rolling positioning disk is provided with thread rolling holding screw, interconnect between thread rolling holding screw and the aircraft nose main part is for being convenient for adjust the position of thread rolling wheel seat through setting up like this to can carry out the operation of opening the silk to the reinforcing bar of different diameters.
Further, the inside of the thread rolling wheel seat is provided with a thread rolling wheel shaft, the thread rolling wheel shaft is rotationally connected with the thread rolling wheel seat, the thread rolling wheel seat is connected with the thread rolling wheel in a sleeving manner, and the thread rolling wheel seat is arranged in order to facilitate the thread opening operation of the steel bars.
Furthermore, the number of the thread rolling wheel seats is three, the thread rolling wheel seats are distributed at equal intervals around the axis of the machine head main body, the thread rolling wheel seats are arranged in order to improve thread rolling efficiency, and the position of the reinforcing steel bar is limited.
Further, the automatic rib stripping device comprises a closing block, a rib stripping opening block, a thread rolling opening block and a rib stripping opening arm, wherein the closing block, the rib stripping opening block and the thread rolling opening block are respectively matched with the rib stripping opening arm
Compared with the prior art, the utility model has the beneficial effects that: the utility model has the characteristics of reasonable structure and convenient use, the rib stripping positioning disk and the thread rolling positioning disk are directly adjusted by adopting an involute adjusting mode, scale marks are printed on the outer circle surfaces of the thread rolling positioning disk and the rib stripping positioning disk, the adjustment is convenient and quick, the size is linearly adjusted, and the size integrity is ensured; by adopting the cylindrical thread rolling wheel seat, the structure is simple, the rolling direction of the thread rolling wheel is consistent with the rotation direction of the thread of the processed thread head, and the precision of the processed thread is high and the quality stability is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of a novel external thread fully-expanding thread rolling machine head;
FIG. 2 is a schematic structural view of a stripping positioning disk of a novel external thread full-expansion thread rolling machine head;
FIG. 3 is a schematic diagram of the structure of a thread rolling positioning disc of the novel external thread full-expansion thread rolling machine head;
FIG. 4 is a schematic view of the structure of an embodiment 1 of a novel external thread fully-expanding screw head according to the present utility model;
FIG. 5 is a schematic view of the structure of example 2 of a novel external thread fully-expanding screw head according to the present utility model;
FIG. 6 is a schematic view of the structure of example 3 of a novel external thread fully-expanding screw head of the present utility model;
FIG. 7 is a schematic view of the structure of example 4 of a novel external thread fully-expanding screw head of the present utility model;
in the figure: 1. fixing the base plate; 11. a first adjustment scale line; 2. rib stripping positioning disk; 21. stripping rib graduation marks; 22. a first adjustment tank; 23. stripping the rib set screw; 24. a pressure spring column spring for stripping ribs; 3. a cutter mounting seat; 31. stripping rib knife; 32. a rib stripping knife assembling and disassembling hole; 41. rolling threads to adjust scale marks; 5. a thread rolling positioning disc; 51. a second adjustment scale line; 52. a second regulating groove; 53. a thread rolling set screw; 6. a handpiece body; 61. a pressing reed; 62. a compression spring column spring for thread rolling; 7. a thread rolling wheel seat; 71. a thread rolling wheel shaft; 72. a thread rolling wheel; 8. a machine head fixing plate; 9. closing the block; 91. stripping rib opening blocks; 92. a thread rolling opening block; 93. the rib is peeled to open the arm.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number.
The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may explicitly or implicitly include one or more features.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and for example, it may be a fixed connection or an active connection, or it may be a detachable connection or a non-detachable connection, or it may be an integral connection; may be mechanically connected, may be electrically connected, or may be in communication with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements, indirect communication or interaction relationship between the two elements.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
Referring to fig. 1-4, a novel external thread full-expansion thread rolling machine head comprises a fixed base plate 1, wherein a rib stripping positioning plate 2 is arranged on the side face of the fixed base plate 1, the rib stripping positioning plate 2 is rotationally connected with the fixed base plate 1, a pressure spring column spring 24 for rib stripping is arranged on the inner side of the rib stripping positioning plate 2, cutter mounting seats 3 are arranged on the side face of the rib stripping positioning plate 2, the cutter mounting seats 3 are distributed at equal intervals around the axis of the rib stripping positioning plate 2, thread rolling positioning plates 5 are arranged on the side face of the fixed base plate 1, the thread rolling positioning plates 5 are rotationally connected with the fixed base plate 1, a machine head main body 6 is arranged on the side face of the fixed base plate 1, a machine head fixing plate 8 is fixedly connected to one side of the machine head main body 6, and thread rolling wheel seats 7 are arranged inside the machine head main body 6.
Preferably, the first adjusting scale line 11 is arranged on the outer side of the rib stripping fixed disc 1, the rib stripping scale line 21 is arranged on the outer side of the rib stripping fixed disc 2, and the rib stripping fixed disc 2 is more accurate in adjustment.
Preferably, the outer side of the fixed base plate 4 is provided with thread rolling adjustment graduation marks 41, the outer side of the thread rolling positioning plate 5 is provided with second adjustment graduation marks 51, and the thread rolling positioning plate 5 is more accurately adjusted through the arrangement.
Preferably, the side of shell rib positioning disk 2 has seted up first adjustment tank 22, and the shape of first adjustment tank 22 sets up to arc structure, and first adjustment tank 22 is equidistant around shell rib positioning disk 2's axle center and be provided with shell rib holding screw 23 on shell rib positioning disk 2, shell and link each other between rib holding screw 23 and the shell rib fixed disk 1, through setting up in order to be convenient for adjust the position of cutter mount pad 3 like this to can open the rib operation to the reinforcing bar of different diameters.
Preferably, a rib stripping knife 31 is arranged at one end of the knife mounting seat 3, the rib stripping knife 31 is fixedly connected with the knife mounting seat 3, and a rib stripping knife assembling and disassembling hole 32 is formed at one end of the knife mounting seat 3, so that rib stripping operation on the steel bars is facilitated.
Preferably, the nose main body 6 is connected with a compression spring column spring 62 for thread rolling in an inserting manner, one end of the compression spring column spring 62 for thread rolling is provided with a compression spring piece 61, and the arrangement is convenient for limiting the position of the thread rolling wheel seat 7, so that the thread rolling wheel seat 7 can be opened after the thread is opened, and the steel bar after the thread is opened can be discharged more conveniently.
Preferably, the second adjusting groove 52 is formed in the side face of the thread rolling positioning plate 5, the second adjusting groove 52 is of an arc-shaped structure, the second adjusting grooves 52 are distributed at equal intervals around the axis of the thread rolling positioning plate 5, the thread rolling set screws 53 are arranged on one side of the thread rolling positioning plate 5, the thread rolling set screws 53 are connected with the machine head main body 6, and the thread rolling set screws 53 are arranged so as to be convenient for adjusting the position of the thread rolling wheel seat 7, so that thread cutting operation can be carried out on steel bars with different diameters.
Preferably, the inner side of the thread rolling wheel seat 7 is provided with a thread rolling wheel shaft 71, the thread rolling wheel shaft 71 is rotationally connected with the thread rolling wheel seat 7, the thread rolling wheel seat 7 is connected with a thread rolling wheel 72 in a sleeving manner, and the arrangement is convenient for carrying out thread opening operation on the steel bars.
Preferably, the number of the thread rolling wheel seats 7 is three, and the thread rolling wheel seats 7 are distributed at equal intervals around the axis of the machine head main body 6, so that the thread rolling efficiency is improved, and the position of the reinforcing steel bar is limited.
Preferably, the rib stripping opening device comprises a closing block 9, a rib stripping opening block 91, a thread rolling opening block 92 and a rib stripping opening arm 93, wherein the closing block 9, the rib stripping opening block 91 and the thread rolling opening block 92 are respectively matched with the rib stripping opening arm 93.
Example 1
Referring to fig. 4, in the initial state, the cutter mounting seat 3 and the thread rolling wheel seat 7 are all closed toward the center, processing is started, after the steel bar is mounted, the machine head rotates along the axis, and at this time, the machine head moves leftwards with the rib stripping opening arm 93, and rib stripping processing is performed on the steel bar in the rotation.
Example 2
Referring to fig. 5, the rotating nose and the stripping opening arm 93 move to the left to the stripping opening block 91, the outer edge of the fixed base 1 contacts with the stripping opening block 91, the nose continues to move to the left, and the stripping opening arm 93 continues to move to the left.
Example 3
Referring to fig. 6, the rotating machine head moves left, the outer edge of the fixed base 1 slides to the right relative to the machine head main body to the step of the rib stripping positioning disc 2 and the cutter mounting seat under the action of the rib stripping opening block 91, the cutter mounting seat 3 is sprung open under the action of the spring, namely the cutter mounting seat 3 is expanded, meanwhile, the rib stripping opening block 91 expands outwards under the action of the rib stripping opening arm 93, the rotating machine head can continue to move left to the thread rolling wheel 72 for rolling threads, and the rotating machine head continues to move left until the outer edge of the fixed base moves left to contact with the thread rolling opening block.
Example 4
Referring to fig. 7, the outer edge of the rotating machine head fixing base plate 1 contacts with the thread rolling opening block 92, and continues to move leftwards, the rib stripping positioning plate 2 and the thread rolling positioning plate 5 attached to the fixing base plate 1 continuously slide rightwards relative to the machine head main body 6 under the resistance action of the thread rolling opening block 92, the thread rolling positioning plate 5 slides to the step of the thread rolling wheel seat, the thread rolling wheel seat 7 expands under the action of the elasticity of the thread rolling spring, meanwhile, the involute step outside the inner hole of the rib stripping positioning plate 2 always presses the step outside the cutter mounting seat 3 to prevent the cutter mounting seat 3 from ejecting the machine head main body 6 to fall off, the machine head and the rib stripping opening arm 93 move rightwards to an initial state under the action of external force, the machine head stops rotating, and the steel bar is taken down to complete a working cycle.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. Novel external screw thread full-expansion thread rolling machine head comprises a fixed base plate (1), and is characterized in that: the novel wire stripper is characterized in that a rib stripping positioning disc (2) is arranged on the side face of the fixed base disc (1), the rib stripping positioning disc (2) is connected with the fixed base disc (1) in a rotating mode, a pressure spring column spring (24) for rib stripping is arranged on the inner side of the rib stripping positioning disc (2), a cutter mounting seat (3) is arranged on the side face of the rib stripping positioning disc (2), the cutter mounting seat (3) is distributed at equal intervals around the axis of the rib stripping positioning disc (2), a wire rolling positioning disc (5) is arranged on the side face of the fixed base disc (1), the wire rolling positioning disc (5) is connected with the fixed base disc (1) in a rotating mode, a machine head main body (6) is arranged on the side face of the fixed base disc (1), a machine head fixing disc (8) is fixedly connected to one side of the machine head main body (6), and a wire rolling seat (7) is arranged inside the machine head main body (6).
2. The novel external thread full-expansion thread rolling machine head according to claim 1, wherein a first adjusting scale line (11) is arranged on the outer side of the fixed base plate (1), and a rib stripping scale line (21) is arranged on the outer side of the rib stripping positioning plate (2).
3. The novel external thread full-expansion thread rolling machine head according to claim 1, wherein thread rolling adjusting graduation marks (41) are formed on the outer side of the fixed base plate (1), and second adjusting graduation marks (51) are formed on the outer side of the thread rolling positioning plate (5).
4. The novel external thread full-expansion thread rolling machine head according to claim 1, wherein a first adjusting groove (22) is formed in the side face of the rib stripping positioning disc (2), the shape of the first adjusting groove (22) is of an arc-shaped structure, the first adjusting grooves (22) are distributed at equal intervals around the axis of the rib stripping positioning disc (2), rib stripping set screws (23) are arranged on the rib stripping positioning disc (2), and the rib stripping set screws (23) are connected with the fixed base disc (1) mutually.
5. The novel external thread full-expansion thread rolling machine head according to claim 1, wherein a rib stripping knife (31) is arranged at one end of the cutter mounting seat (3), the rib stripping knife (31) is fixedly connected with the cutter mounting seat (3), and a rib stripping knife assembling and disassembling hole (32) is formed at one end of the cutter mounting seat (3).
6. The novel external thread full-expansion thread rolling machine head according to claim 1 is characterized in that a thread rolling pressure spring column spring (62) is connected to the machine head main body (6) in an inserting mode, and a pressing reed (61) is arranged at one end of the thread rolling pressure spring column spring (62).
7. The novel external thread full-expansion thread rolling machine head according to claim 1, wherein a second adjusting groove (52) is formed in the side face of the thread rolling positioning disc (5), the second adjusting groove (52) is of an arc-shaped structure, the second adjusting grooves (52) are distributed at equal intervals around the axis of the thread rolling positioning disc (5), thread rolling set screws (53) are arranged on one side of the thread rolling positioning disc (5), and the thread rolling set screws (53) are connected with the machine head main body (6).
8. The novel external thread full-expansion thread rolling machine head according to claim 1, wherein a thread rolling wheel shaft (71) is arranged on the inner side of the thread rolling wheel seat (7), the thread rolling wheel shaft (71) is rotationally connected with the thread rolling wheel seat (7), and the thread rolling wheel seat (7) is connected with a thread rolling wheel (72) in a sleeving manner.
9. The novel external thread full-expansion thread rolling machine head according to claim 8, wherein three thread rolling wheel seats (7) are arranged, and the thread rolling wheel seats (7) are distributed at equal intervals around the axis of the machine head main body (6).
10. The novel external thread full-expansion thread rolling machine head according to claim 1 is characterized by comprising a closing block (9), a rib stripping opening block (91), a thread rolling opening block (92) and a rib stripping opening arm (93), wherein the closing block (9), the rib stripping opening block (91) and the thread rolling opening block (92) are respectively matched with the rib stripping opening arm (93).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122812526.8U CN219541586U (en) | 2021-11-17 | 2021-11-17 | Novel external thread full-expansion thread rolling machine head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122812526.8U CN219541586U (en) | 2021-11-17 | 2021-11-17 | Novel external thread full-expansion thread rolling machine head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219541586U true CN219541586U (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122812526.8U Active CN219541586U (en) | 2021-11-17 | 2021-11-17 | Novel external thread full-expansion thread rolling machine head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219541586U (en) |
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2021
- 2021-11-17 CN CN202122812526.8U patent/CN219541586U/en active Active
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