CN221158617U - Screw rod spiral groove rough turning equipment - Google Patents

Abstract

The utility model relates to the technical field of screw rod machining, in particular to screw rod spiral groove rough turning equipment which can rough-turn a plurality of screw rod blanks at one time, takes a sample screw rod as a die, and has the advantages of simple operation, good consistency and high working efficiency; comprises a servo motor and a main shaft; still include frame, chuck mechanism one, slip table mechanism, chuck mechanism two and drive mechanism, chuck mechanism one, servo motor, slip table mechanism and chuck mechanism two all install in the frame, chuck mechanism one is used for clamping sample lead screw pair, servo motor's output shaft is connected with chuck mechanism one transmission, servo motor's output shaft passes through drive mechanism and chuck mechanism two transmission connection, slip table mechanism is connected with the vice lead screw nut of sample lead screw, a plurality of spindles are installed on slip table mechanism, chuck mechanism two is used for parallel clamping a plurality of lead screw blanks, the cutter of a plurality of spindles carries out the rough turning to a plurality of lead screw blanks respectively, sample lead screw pair and a plurality of lead screw blank synchronous rotation.

Description

Screw rod spiral groove rough turning equipment

Technical Field

The utility model relates to the technical field of screw rod machining, in particular to screw rod spiral groove rough turning equipment.

Background

Ball screws are ideal products for converting rotary motion to linear motion, or vice versa.

The Chinese patent application with publication number of CN113523739A in the prior art proposes a processing technology of a ball screw, wherein a processing step is provided, namely, cylindrical steel material subjected to spheroidizing annealing is subjected to rough turning, threading and chamfering treatment by a numerical control machine tool to obtain the screw and a ball thread groove, and a margin of 2.5-3MM is left after rough turning.

In the prior art, blanks to be machined are clamped on a lathe for cutting machining in rough turning, cutting parameters are input, and the lathe performs rough turning one by one, so that only one blank can be roughly turned each time in machining, the machining parameters are required to be frequently adjusted, and the working efficiency is low.

Disclosure of utility model

In order to solve the technical problems, the utility model provides the screw rod spiral groove rough turning equipment which can rough-turn a plurality of screw rod blanks at a time, takes a sample screw rod as a die, and is simple to operate, good in consistency and high in working efficiency.

The utility model relates to screw rod spiral groove rough turning equipment, which comprises a servo motor and a main shaft; the chuck mechanism I, the servo motor, the sliding table mechanism II and the transmission mechanism are all arranged on the frame, the chuck mechanism I is used for clamping a sample screw pair, an output shaft of the servo motor is in transmission connection with the chuck mechanism I, an output shaft of the servo motor is in transmission connection with the chuck mechanism II through the transmission mechanism, the sliding table mechanism is connected with a screw nut of the sample screw pair, the sliding table mechanism linearly slides on the frame, a plurality of spindles are arranged on the sliding table mechanism, the chuck mechanism II is used for clamping a plurality of screw blanks in parallel, the screw blanks are parallel to the sample screw, the transmission mechanism drives the chuck mechanism II to drive the screw blanks to synchronously rotate, and tools of the spindles respectively perform rough turning on the screw blanks, and the sample screw pair and the screw blanks synchronously rotate; during operation, the standard sample screw pair which completes all processing is loaded on the first chuck mechanism, the screw nut of the sample screw pair is moved to one end of the sample screw, the sliding table mechanism is connected with the screw nut, a plurality of screw blanks are clamped on the second chuck mechanism, at the moment, cutters of the plurality of spindles are aligned with starting points of the screw grooves of the plurality of screw blanks, the plurality of spindles are started, initial cutting amounts of the plurality of spindles are adjusted, the servo motor is started, the servo motor drives the chuck mechanism to drive the sample screw to rotate, the sample screw nut is driven by the screw nut to move, the screw nut drives the sliding table mechanism and the plurality of spindles to move, so that the plurality of spindles respectively cut the plurality of screw blanks, meanwhile, the servo motor drives the second chuck mechanism to synchronously rotate, so that the plurality of spindles cut the screw grooves on the outer surfaces of the plurality of screw blanks, the screw grooves are consistent with the screw grooves of the sample screw blanks, rough turning of the screw grooves of the plurality of screw blanks is completed after the cutter amount is adjusted for a plurality of times, the rough turning of the screw blanks can be completed once, the rough turning of the screw blanks is completed, the rough turning effect of the screw blanks is simplified, the rough turning of the sample is achieved, the rough turning efficiency of the sample is good, and the rough turning operation efficiency of the sample is achieved, and the rough turning efficiency is good.

Preferably, the first chuck mechanism comprises a first thread, a first clamping plate, a first driving chuck and a first driven chuck, wherein the first thread is provided with a plurality of threads, the first thread is arranged on the frame in parallel, the first clamping plate is arranged on the first thread in a sliding way, the first driving chuck is rotatably arranged on the frame, the second driven chuck is rotatably arranged on the first clamping plate, the first driving chuck and the first driven chuck are concentrically opposite, and the first driving chuck is in transmission connection with an output shaft of the servo motor; according to the position of the first clamping plate on the first thread of the specification adjustment of the sample lead screw, one end of the sample lead screw is clamped on the first driving chuck, the other end of the sample lead screw is clamped on the first driven chuck, the first driving chuck is driven to rotate by the servo motor, the first driving chuck drives the sample lead screw to rotate, and sample lead screws of different specifications can be clamped, so that the universality is good.

Preferably, the clamping plate further comprises a plurality of nuts, the nuts are respectively rotationally screwed on the first threads, and the nuts lock the position of the first clamping plate; after the position of the clamping plate I on the plurality of threads I is adjusted according to the specification of the sample screw rod, the plurality of nuts are screwed to lock the clamping plate I on the plurality of threads I, so that the stability of the clamping plate I is improved.

Preferably, the sliding table mechanism comprises a stud plate, a sliding table plate, sliding rails, an auxiliary sliding table, a sliding rail II and an electric push rod, wherein the stud plate is connected with a screw rod nut of a sample screw rod pair, the sliding table plate is arranged on a servo motor, the sliding table plate is vertical to the stud plate, the sliding rails are arranged in a plurality, a plurality of sliding rails are arranged on the sliding table plate in parallel, the auxiliary sliding table is slidably arranged on the sliding rails through a plurality of sliding blocks, a plurality of main shafts are arranged on the auxiliary sliding table, the fixed end of the electric push rod is arranged on the sliding table plate, a piston rod of the electric push rod is connected with the auxiliary sliding table, the sliding rails are arranged on a rack in parallel, and the sliding table plate is slidably arranged on the sliding rail II; during operation, the electric push rod stretches to push the auxiliary sliding table to move along the plurality of sliding rails, so that the cutting amount of the plurality of main shafts is adjusted, the screw nut of the sample screw rod pair drives the stud plate and the sliding table plate to move along the plurality of sliding rails II, so that cutters of the plurality of main shafts cut screw rod blanks, automatic work can be realized through programming the electric push rod, and the practicability is good.

Preferably, the device further comprises two grating scales and two grating heads, wherein the two grating scales are respectively arranged on two sides of the sliding table plate, the two grating scales are parallel to the sliding rail, the two grating heads are respectively symmetrically arranged on two sides of the auxiliary sliding table, and the two grating heads are respectively aligned with the two grating scales in a matching way; the two grating scales and the two grating heads are matched to measure the moving distance of the auxiliary sliding table, so that the cutting amount of a plurality of spindles is accurately controlled, and the consistency of the spindles in cutting a plurality of screw rod blanks can be improved by detecting whether the displacements at two sides of the auxiliary sliding table are consistent and correcting the displacements.

Preferably, the second chuck mechanism comprises a screw rod II, a mounting plate, a plurality of driving chucks II, a clamping plate II and a plurality of driven chucks II, wherein the screw rod II is provided with a plurality of screw rods II which are arranged in parallel, the screw rod II is parallel to the first screw thread, one end of the screw rod II is mounted on the mounting plate, the mounting plate is mounted on the frame, the plurality of driving chucks II are rotatably mounted on the mounting plate, the other end of the screw rod II is mounted on the frame, the clamping plate II is slidably mounted on the plurality of screw rods II in a lockable manner, the plurality of driven chucks II are rotatably mounted on the clamping plate II, the plurality of driven chucks II are concentrically aligned with the plurality of driving chucks II respectively, and the transmission mechanism is in transmission connection with the plurality of driving chucks II; the clamping plate is adjusted in position according to the specification of the screw rod blank and locked on the screw rods II, one ends of the screw rod blanks are respectively clamped on the driving chucks II, the other ends of the screw rod blanks are respectively clamped on the driven chucks II, the driving mechanism drives the driving chucks II to synchronously rotate, and the driving chucks respectively drive the screw rod blanks to synchronously rotate, so that cutting machining of spiral grooves is realized, and the practicability is good.

Preferably, the clamping plate also comprises a plurality of screw rods III, the rotating shafts of the driven chucks II are respectively and rotationally screwed on the clamping plate II through the screw rods III, and the driven chucks respectively rotate around the rotating shafts; after the position of the clamping plate II is adjusted and locked, the distance between the driven chuck II and the driving chuck II can be finely adjusted by rotating the screw rods III, so that screw rod blanks can be conveniently clamped and disassembled, and the working efficiency is improved.

Preferably, the transmission mechanism comprises a first transmission assembly and a plurality of second transmission assemblies, the first transmission assembly is used for connecting an output shaft of the servo motor with one driving chuck II in a transmission way, the plurality of second transmission assemblies are used for connecting two adjacent driving chucks II in a transmission way respectively, the transmission ratio of the first transmission assembly and the plurality of second transmission assemblies is the same, and the rotating speed and the rotating direction of the sample screw and the screw blank are the same; the first transmission assembly and the second transmission assembly can be synchronous belt transmission assemblies, chain transmission assemblies, gear transmission assemblies and the like, the servo motor drives the driving chuck II to rotate through the first transmission assembly, the driving chuck II drives the adjacent driving chucks II to synchronously rotate through the second transmission assembly, the technology is mature, and the processing consistency of rough turning is improved.

Compared with the prior art, the utility model has the beneficial effects that: during operation, the standard sample screw pair which completes all processing is loaded on the first chuck mechanism, the screw nut of the sample screw pair is moved to one end of the sample screw, the sliding table mechanism is connected with the screw nut, a plurality of screw blanks are clamped on the second chuck mechanism, at the moment, cutters of the plurality of spindles are aligned with starting points of the screw grooves of the plurality of screw blanks, the plurality of spindles are started, initial cutting amounts of the plurality of spindles are adjusted, the servo motor is started, the servo motor drives the chuck mechanism to drive the sample screw to rotate, the sample screw nut is driven by the screw nut to move, the screw nut drives the sliding table mechanism and the plurality of spindles to move, so that the plurality of spindles respectively cut the plurality of screw blanks, meanwhile, the servo motor drives the second chuck mechanism to synchronously rotate, so that the plurality of spindles cut the screw grooves on the outer surfaces of the plurality of screw blanks, the screw grooves are consistent with the screw grooves of the sample screw blanks, rough turning of the screw grooves of the plurality of screw blanks is completed after the cutter amount is adjusted for a plurality of times, the rough turning of the screw blanks can be completed once, the rough turning of the screw blanks is completed, the rough turning effect of the screw blanks is simplified, the rough turning of the sample is achieved, the rough turning efficiency of the sample is good, and the rough turning operation efficiency of the sample is achieved, and the rough turning efficiency is good.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic illustration of an axially measured structure of the present utility model;

FIG. 3 is a schematic view of the structure of the utility model in a top view;

FIG. 4 is a schematic view of the structure of the frame, chuck mechanism one, and servo motor, etc.;

Fig. 5 is a schematic structural view of the sliding table mechanism, the main shaft and the like;

fig. 6 is a schematic diagram of a front view of the structure of the slipway mechanism and the main shaft;

FIG. 7 is a schematic diagram of the structure of the servo motor, chuck mechanism II, and transmission mechanism;

The reference numerals in the drawings: 1. a frame; 2. a chuck mechanism I; 3. a servo motor; 4. a slipway mechanism; 5. a main shaft; 6. a chuck mechanism II; 7. a transmission mechanism; 8. a first thread; 9. a clamping plate I; 10. an active chuck I; 11. a first driven chuck; 12. a nut; 13. stud plates; 14. a slide platen; 15. a slide rail; 16. an auxiliary sliding table; 17. a second slide rail; 18. an electric push rod; 19. a grating ruler; 20. a grating head; 21. a second screw; 22. a mounting plate; 23. an active chuck II; 24. a clamping plate II; 25. a second driven chuck; 26. a screw III; 27. a first transmission assembly; 28. and a second transmission assembly.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Examples

As shown in fig. 1 to 3, a screw rod spiral groove rough turning device comprises a servo motor 3 and a main shaft 5; the automatic feeding device is characterized by further comprising a frame 1, a chuck mechanism I2, a sliding table mechanism 4, a chuck mechanism II 6 and a transmission mechanism 7, wherein the chuck mechanism I2, a servo motor 3, the sliding table mechanism 4 and the chuck mechanism II 6 are all arranged on the frame 1, the chuck mechanism I2 is used for clamping a sample screw rod pair, an output shaft of the servo motor 3 is in transmission connection with the chuck mechanism I2, an output shaft of the servo motor 3 is in transmission connection with the chuck mechanism II 6 through the transmission mechanism 7, the sliding table mechanism 4 is connected with a screw nut of the sample screw rod pair, the sliding table mechanism 4 linearly slides on the frame 1, the main shaft 5 is provided with a plurality of main shafts 5, the chuck mechanism II 6 is used for clamping a plurality of screw rod blanks in parallel, the plurality of screw rod blanks are parallel to a sample screw rod, the transmission mechanism 7 drives the chuck mechanism II 6 to drive the plurality of screw rod blanks to synchronously rotate, and cutters of the plurality of screw rod blanks respectively carry out rough turning on the plurality of screw rod blanks, and the sample screw rod pair and the plurality of screw rod blanks synchronously rotate.

During operation, standard sample screw pairs which finish all machining are loaded on the first chuck mechanism 2, screw nuts of the sample screw pairs are moved to one ends of the sample screw, the sliding table mechanism 4 is connected with the screw nuts, a plurality of screw blanks are clamped on the second chuck mechanism 6, at the moment, cutters of the plurality of spindles 5 are aligned with starting points of spiral grooves of the plurality of screw blanks, the plurality of spindles 5 are started, initial cutting amounts of the plurality of spindles 5 are adjusted, the servo motor 3 is started, the first chuck mechanism 2 is driven by the servo motor 3 to drive the sample screw to rotate, the screw nuts are driven by the sample screw to move, the screw nuts drive the sliding table mechanism 4 and the plurality of spindles 5 to move, the plurality of spindles 5 respectively cut the plurality of screw blanks, meanwhile, the servo motor 3 drives the second chuck mechanism 6 to operate through the transmission mechanism 7, the chuck mechanism 6 drives the plurality of screw blanks to synchronously rotate, so that spiral grooves are cut out on the outer surfaces of the plurality of screw blanks, the spiral grooves are consistent with the spiral grooves of the sample screw blanks, after the cutter amounts are adjusted for a plurality of times, the screw blanks are turned for a plurality of times, the rough turning operation of screw blanks is completed, the rough turning operation of the sample blanks is completed, the rough turning efficiency of the sample blanks is good, and the rough turning operation efficiency is achieved.

As shown in fig. 4, 5 and 6, the first chuck mechanism 2 comprises a first thread 8, a first clamping plate 9, a first driving chuck 10 and a first driven chuck 11, wherein the first thread 8 is provided with a plurality of threads, the first thread 8 is arranged on the frame 1 in parallel, the first clamping plate 9 is slidably arranged on the first thread 8, the first driving chuck 10 is rotatably arranged on the frame 1, the first driven chuck 11 is rotatably arranged on the first clamping plate 9, the first driving chuck 10 and the first driven chuck 11 are concentrically opposite, and the first driving chuck 10 is in transmission connection with an output shaft of the servo motor 3; the clamping plate I9 is locked by the nuts 12; the sliding table mechanism 4 comprises a stud plate 13, a sliding table plate 14, sliding rails 15, an auxiliary sliding table 16, a second sliding rail 17 and an electric push rod 18, wherein the stud plate 13 is connected with a screw nut of a sample screw rod pair, the sliding table plate 14 is arranged on the servo motor 3, the sliding table plate 14 is perpendicular to the stud plate 13, a plurality of sliding rails 15 are arranged on the sliding table plate 14 in parallel, the auxiliary sliding table 16 is arranged on the sliding rails 15 in a sliding manner through a plurality of sliding blocks, a plurality of main shafts 5 are arranged on the auxiliary sliding table 16, the fixed end of the electric push rod 18 is arranged on the sliding table plate 14, a piston rod of the electric push rod 18 is connected with the auxiliary sliding table 16, a plurality of second sliding rails 17 are arranged on the rack 1 in parallel, and the sliding table plate 14 is arranged on the second sliding rails 17 in a sliding manner; the two grating scales 19 are respectively arranged on two sides of the sliding table plate 14, the two grating scales 19 are parallel to the sliding rail 15, the two grating heads 20 are respectively symmetrically arranged on two sides of the auxiliary sliding table 16, and the two grating heads 20 are respectively matched and aligned with the two grating scales 19.

After the position of the clamping plate I9 on the plurality of threads I8 is adjusted according to the specification of the sample screw, the plurality of nuts 12 are screwed to lock the clamping plate I9 on the plurality of threads I8, one end of the sample screw is clamped on the driving chuck I10, the other end of the sample screw is clamped on the driven chuck I11, the sample screws with different specifications can be clamped, the universality is good, the driving chuck I10 is driven by the servo motor 3 to rotate, the driving chuck I10 drives the sample screw to rotate, the screw nut of the sample screw pair drives the stud plate 13 and the sliding table plate 14 to move along the plurality of sliding rails II 17, the electric push rod 18 stretches to push the auxiliary sliding table 16 to move along the plurality of sliding rails 15, so that the cutting amount of the plurality of main shafts 5 is adjusted, the two grating scales 19 and the two grating heads 20 are matched to measure the moving distance of the auxiliary sliding table 16, the cutting amount of the plurality of main shafts 5 is accurately controlled, the cutting tools of the plurality of main shafts 5 are enabled to cut by detecting whether the displacement on two sides of the auxiliary sliding table 16 is consistent and correcting is made, and automatic work can be realized by programming the electric push rod 18.

As shown in fig. 7, the second chuck mechanism 6 includes a second screw 21, a mounting plate 22, a plurality of second driving chucks 23, a second clamping plate 24 and a plurality of second driven chucks 25, the second screw 21 is provided in double numbers, the plurality of second screws 21 are arranged in parallel, the second screw 21 is parallel to the first screw thread 8, one end of the second screw 21 is mounted on the mounting plate 22, the mounting plate 22 is mounted on the frame 1, the plurality of second driving chucks 23 are rotatably mounted on the mounting plate 22, the other end of the second screw 21 is mounted on the frame 1, the second clamping plate 24 is slidably mounted on the plurality of second screws 21 in a lockable manner, the plurality of second driven chucks 25 are rotatably mounted on the second clamping plate 24, the plurality of second driven chucks 25 are respectively concentrically aligned with the plurality of second driving chucks 23, and the transmission mechanism 7 is in transmission connection with the plurality of second driving chucks 23; the clamping plate II is further provided with a plurality of screw rods III 26, the rotating shafts of the plurality of driven chucks II 25 are respectively and rotatably connected to the clamping plate II 24 in a screwed mode through the plurality of screw rods III 26, and the plurality of driven chucks II 25 rotate around the rotating shafts respectively; the transmission mechanism 7 comprises a first transmission assembly 27 and a plurality of second transmission assemblies 28, the first transmission assembly 27 is used for connecting the output shaft of the servo motor 3 with one driving chuck II 23 in a transmission way, the plurality of second transmission assemblies 28 are used for connecting two adjacent driving chucks II 23 in a transmission way, and the transmission ratio of the first transmission assembly 27 and the plurality of second transmission assemblies 28 is the same, so that the rotation speed and the rotation direction of the sample screw and the screw blank are the same.

The method comprises the steps of adjusting the position of a clamping plate II 24 according to the specification of screw rod blanks and locking the clamping plate II 24 on a plurality of screw rods II 21, clamping one ends of the screw rod blanks on a plurality of driving chucks II 23 respectively, rotating a plurality of screw rods III 26 to adjust the distance between a driven chuck II 25 and the driving chucks II 23, clamping the other ends of the screw rod blanks on a plurality of driven chucks II 25 respectively, rotating a plurality of screw rods III 26 to adjust the distance between the driven chucks II 25 and the driving chucks II 23 respectively, completing clamping, driving one driving chuck II 23 to rotate by a servo motor 3 through a first transmission assembly 27, driving other driving chucks II 23 to synchronously rotate by a plurality of second transmission assemblies 28, and driving chucks II 23 to synchronously rotate by a plurality of driving chucks II 23 respectively, so that cutting of spiral grooves is realized.

As shown in fig. 1 to 3, in the screw rod spiral groove rough turning device, when the screw rod spiral groove rough turning device works, firstly, standard sample screw rod pairs which finish all machining are loaded between a first driving chuck 10 and a first driven chuck 11, the screw rod nuts of the sample screw rod pairs are moved to one end of a sample screw rod, a stud plate 13 is connected with the screw rod nuts, then a plurality of screw rod blanks are clamped between a second driving chuck 23 and a second driven chuck 25, at the moment, cutters of the plurality of main shafts 5 are aligned with starting points of spiral grooves of the plurality of screw rod blanks respectively, then the plurality of main shafts 5 are started, the first driving chuck 10 is driven by the servo motor 3 to drive the sample screw rod to rotate, the screw rod nuts are driven by the sample screw rod, the stud plate 13, the slide plate 14 and the plurality of main shafts 5 are driven by the screw rod nuts to move along a plurality of second slide rails 17, simultaneously, the servo motor 3 drives the second driving chuck 23 to rotate through the second driving chuck 23, the second driving chuck 23 drives the plurality of spiral chucks to rotate a plurality of blanks through the second driving chuck 28, and finally, the plurality of blanks are driven by the second driving chuck 23 to rotate a plurality of spiral grooves, and the plurality of blanks are driven by a plurality of spiral grooves are driven by the second driving chuck 23 to rotate, and the plurality of blanks are driven by a plurality of spiral grooves are synchronously, and rough turning is finished, and the screw rod blanks can be turned by a plurality of blanks is finished, and the outer surface of blanks is turned by a plurality of screw blanks is turned and turned.

The main functions realized by the utility model are as follows:

1. a plurality of screw rod blanks can be roughly turned at one time, so that the working efficiency is high;

2. The sample screw rod is used as a die, so that the operation is simple and the consistency is good;

3. the screw rods with different specifications can be roughly turned, and the universality is good.

The installation mode, the connection mode or the setting mode of the screw rod spiral groove rough turning equipment are common mechanical modes, and can be implemented as long as the beneficial effects of the screw rod spiral groove rough turning equipment can be achieved; the servo motor 3, the main shaft 5, the transmission mechanism 7, the first thread 8, the first driving chuck 10, the first driven chuck 11, the nut 12, the sliding rail 15, the second sliding rail 17, the electric push rod 18, the grating ruler 19, the grating head 20, the second screw 21, the second driving chuck 23, the second driven chuck 25, the third screw 26, the first transmission assembly 27 and the second transmission assembly 28 of the screw rod spiral groove rough turning device are purchased in the market, and a person skilled in the art only needs to install and operate according to the attached using instructions without creative labor.

All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (8)

1. The screw rod spiral groove rough turning equipment comprises a servo motor (3) and a main shaft (5); the automatic feeding device is characterized by further comprising a frame (1), a first chuck mechanism (2), a sliding table mechanism (4), a second chuck mechanism (6) and a transmission mechanism (7), wherein the first chuck mechanism (2), a servo motor (3), the sliding table mechanism (4) and the second chuck mechanism (6) are all arranged on the frame (1), the first chuck mechanism (2) is used for clamping a sample screw rod pair, an output shaft of the servo motor (3) is in transmission connection with the first chuck mechanism (2), the output shaft of the servo motor (3) is in transmission connection with the second chuck mechanism (6) through the transmission mechanism (7), the sliding table mechanism (4) is connected with a screw nut of the sample screw rod pair, the sliding table mechanism (4) linearly slides on the frame (1), a plurality of spindles (5) are arranged, the spindles (5) are arranged on the sliding table mechanism (4), the second chuck mechanism (6) is used for clamping a plurality of screw rod blanks in parallel, the transmission mechanism (7) drives the second chuck mechanism (6) to drive the screw rod blanks to synchronously rotate, the spindle blanks are respectively driven by the spindle blanks, and the spindle blanks are synchronously rotated by the spindle blanks and the spindle blanks.

2. A screw thread groove rough turning device as claimed in claim 1, characterized in that the first chuck mechanism (2) comprises a first screw thread (8), a first clamping plate (9), a first driving chuck (10) and a first driven chuck (11), the first screw thread (8) is provided in a plurality, the first screw thread (8) is arranged on the frame (1) in parallel, the first clamping plate (9) is arranged on the first screw thread (8) in a sliding manner, the first driving chuck (10) is rotatably arranged on the frame (1), the first driven chuck (11) is rotatably arranged on the first clamping plate (9), the first driving chuck (10) and the first driven chuck (11) are concentrically opposite, and the first driving chuck (10) is in transmission connection with an output shaft of the servo motor (3).

3. A screw-spiral groove rough turning apparatus as defined in claim 2, further comprising a plurality of nuts (12), the plurality of nuts (12) being respectively rotatably screwed onto the plurality of first threads (8), the plurality of nuts (12) locking the position of the first clamping plate (9).

4. The screw rod spiral groove rough turning device as claimed in claim 1, wherein the sliding table mechanism (4) comprises a stud plate (13), a sliding table plate (14), sliding rails (15), an auxiliary sliding table (16), a second sliding rail (17) and an electric push rod (18), the stud plate (13) is connected with a screw rod nut of the sample screw rod pair, the sliding table plate (14) is mounted on the servo motor (3), the sliding table plate (14) is perpendicular to the stud plate (13), the sliding rails (15) are arranged in a plurality, the sliding rails (15) are mounted on the sliding table plate (14) in parallel, the auxiliary sliding table (16) is mounted on the sliding rails (15) in a sliding manner through a plurality of sliding blocks, the main shafts (5) are mounted on the auxiliary sliding table (16), the fixed end of the electric push rod (18) is mounted on the sliding table plate (14), the piston rod of the electric push rod (18) is connected with the auxiliary sliding table (16), the sliding rail (17) is mounted on the rack (1) in a parallel manner, and the sliding table plate (14) is mounted on the sliding table (17).

5. A screw spiral groove rough turning device as claimed in claim 4, further comprising two grating scales (19) and two grating heads (20), wherein the two grating scales (19) are respectively arranged on two sides of the sliding table plate (14), the two grating scales (19) are parallel to the sliding rail (15), the two grating heads (20) are respectively symmetrically arranged on two sides of the auxiliary sliding table (16), and the two grating heads (20) are respectively aligned with the two grating scales (19).

6. A screw-screw helical groove rough turning apparatus as defined in claim 1, wherein the second chuck mechanism (6) comprises a screw rod (21), a mounting plate (22), a plurality of driving chucks (23), a clamping plate (24) and a plurality of driven chucks (25), the screw rod (21) is provided in a double number, the plurality of screw rod (21) are arranged in parallel, the screw rod (21) is parallel to the first screw thread (8), one end of the screw rod (21) is mounted on the mounting plate (22), the mounting plate (22) is mounted on the frame (1), the plurality of driving chucks (23) are rotatably mounted on the mounting plate (22), the other end of the screw rod (21) is mounted on the frame (1), the clamping plate (24) is slidably mounted on the plurality of screw rod (21), the plurality of driven chucks (25) are rotatably mounted on the clamping plate (24), the plurality of driven chucks (25) are respectively concentrically aligned with the plurality of driving chucks (23), and the transmission mechanism (7) is in transmission connection with the plurality of driving chucks (23).

7. A screw-spiral groove rough turning apparatus as defined in claim 6, further comprising a plurality of screw three (26), the rotation shafts of the plurality of driven chucks two (25) are respectively screwed on the clamping plates two (24) by the plurality of screw three (26), and the plurality of driven chucks two (25) are respectively rotated around the rotation shafts.

8. A screw-spiral groove rough turning device as claimed in claim 6, characterized in that the transmission mechanism (7) comprises a first transmission assembly (27) and a plurality of second transmission assemblies (28), the first transmission assembly (27) is used for connecting the output shaft of the servo motor (3) with one driving chuck two (23) in a transmission way, the plurality of second transmission assemblies (28) are used for connecting two adjacent driving chucks two (23) in a transmission way respectively, and the transmission ratio of the first transmission assembly (27) and the plurality of second transmission assemblies (28) is the same, so that the rotation speed and the rotation direction of the sample screw and the screw blank are the same.