CN214557662U

CN214557662U - Milling device for slender rod parts

Info

Publication number: CN214557662U
Application number: CN202023254949.4U
Authority: CN
Inventors: 严伟
Original assignee: Wuxi Yingbei Precision Hydraulic Co Ltd
Current assignee: Wuxi Yingbei Precision Hydraulic Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-02
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a slender rod part mills processingequipment, the on-line screen storage device comprises a base, the right side of base is provided with two four-axis equipment, the left side at base top is provided with belt actuating mechanism, the top of base is provided with the top and advances the mechanism, the right side fixedly connected with guide rail of base, the inner chamber fixedly connected with lift seat of guide rail, the inner chamber of lift seat is provided with displacement mechanism all around. The utility model discloses a fixture's setting carries out spacing centre gripping to the slender pole, use through the cooperation of belt drive mechanism and top mechanism afterwards, carry out spacing fixed to the left end of slender pole, use through the cooperation of displacement mechanism and slewing mechanism all around after that, adjust and drive the slender pole and take place the rotation to the position of slender pole, finally under the effect of two four-axis equipment, process the slender pole, can reach the centre gripping stably, the purpose of multi-angle regulation and mechanical automation intensity height, be convenient for process.

Description

Milling device for slender rod parts

Technical Field

The utility model relates to a mill processing technology field, specifically be a slender rod part mills processingequipment.

Background

The milling machine is a machine tool for milling a workpiece by using a milling cutter, can mill planes, grooves, gear teeth, threads and spline shafts, can also process relatively complex molded surfaces, has higher efficiency than the milling machine, and is widely applied to mechanical manufacturing and repairing departments.

Traditional axle class part mills processing excircle and leans on the three-jaw centre gripping, and the tailstock is top supplementary, can only process a part at every turn, but the repeated clamping of part, the rigidity of slender pole part influence the machining efficiency of part, mill the precision of processing and the turnover of part, and because slender pole part radius has certain difference, at the in-process of counterpointing the centre gripping, the user of not being convenient for is to the spacing fixed of slender pole, has then consumeed user's time and energy.

Based on this, the utility model provides a slender axles part mills processingequipment for solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a slender rod part mills processingequipment, it is stable to possess the centre gripping, the multi-angle is adjusted and mechanical automation intensity is high, the advantage of the processing of being convenient for, it leans on the three-jaw centre gripping to have solved traditional axle class part and has milled the processing excircle, the tailstock is top supplementary, only can process a part at every turn, but the repeated clamping of part, the machining efficiency of the rigidity influence part of slender rod part, the precision of milling processing and the turnover of part, and because there is certain difference in slender rod part radius, at the in-process of counterpointing the centre gripping, the person of not being convenient for is to the spacing fixed of slender rod, the problem of user's time and energy has been consumeed then.

In order to achieve the above object, the utility model provides a following technical scheme: a milling device for slender rod parts comprises a base, wherein double four-axis equipment is arranged on the right side of the base, a belt type driving mechanism is arranged on the left side of the top of the base, a jacking mechanism is arranged on the top of the base, a guide rail is fixedly connected to the right side of the base, a lifting seat is fixedly connected to the inner cavity of the guide rail, a front-back displacement mechanism is arranged in the inner cavity of the lifting seat and comprises a sliding seat which is slidably connected to the front side and the rear side of the inner cavity of the lifting seat, a threaded sliding pipe is fixedly connected to the bottom of the sliding seat, an arc-shaped sliding groove matched with the threaded sliding pipe is formed in the bottom of the inner cavity of the lifting seat, a second stepping motor is installed on the front side of the lifting seat, an output shaft of the second stepping motor penetrates through the inner cavity of the arc-shaped sliding groove and is fixedly connected with a bidirectional screw rod, and the rear end of the bidirectional screw rod is rotatably connected with the inner wall of the arc-shaped sliding groove through a bearing, the top of the sliding seat is provided with a rotating mechanism, the rotating mechanism comprises a rotating sleeve positioned at the top of the sliding seat, the surface of the rotating sleeve is fixedly connected with a stress disc II, one side of the top of the sliding seat is provided with a driving motor, an output shaft of the driving motor is fixedly connected with a driving disc, the stress disc II is in transmission connection with the driving disc through a belt II, the inner cavity of the rotating sleeve is provided with a clamping mechanism, the clamping mechanism comprises a sliding ring which is in sliding connection with the inner cavity of the rotating sleeve, the top and the bottom of the surface of the rotating sleeve are both provided with sliding holes matched with the sliding ring, the top and the bottom of the surface of the rotating sleeve are both provided with an electric push rod I, the extending end of the electric push rod I is fixedly connected with the sliding ring, the inner wall of the sliding ring is annularly provided with three rectangular grooves, and the inner cavity of each rectangular groove is rotatably connected with a wedge-shaped clamping block, torsional springs are welded on two sides, close to the rectangular groove, of the wedge-shaped clamping blocks, and one ends, far away from the wedge-shaped clamping blocks, of the torsional springs are welded with the inner wall of the rectangular groove.

Preferably, the belt-type driving mechanism comprises a first stepping motor arranged on the left side of the top of the base, a first driving disc is fixedly connected to an output shaft of the first stepping motor, a threaded driving rod is rotatably connected to the front end and the rear end of the left side of the top of the base through bearings, a first stress disc is fixedly connected to the bottom of the surface of the threaded driving rod, and the first driving disc and the first stress disc are in transmission connection through a belt.

Preferably, the jacking mechanism comprises a fixed sleeve fixedly connected to the top of the base, the inner cavity of the fixed sleeve is slidably connected with two tip cones, a jacking frame is arranged on the left side of the fixed sleeve, and the front end and the rear end of the right side of the jacking frame are respectively connected with the two tip cones in a rotating mode.

Preferably, the jacking frame is the inclination setting, the front side and the rear side on jacking frame surface all rotate and are connected with the screw thread sliding sleeve, screw thread sliding sleeve threaded connection is in the surface of screw thread actuating lever.

Preferably, the fixed ring of the equal fixedly connected with in both sides at slide top, the spacing ring of the equal fixedly connected with in both sides on rotating sleeve surface and the fixed ring looks adaptation, fixed ring rotates to be connected in the inner chamber of spacing ring.

Preferably, the inner cavity of the thread sliding pipe is provided with an internal thread matched with the bidirectional screw rod, and the thread sliding pipe is in threaded connection with the surface of the bidirectional screw rod.

Preferably, the front side and the rear side of the guide rail inner cavity are both connected with wedge-shaped jacking blocks in a sliding mode, two ends of one side, opposite to the two wedge-shaped jacking blocks, of each wedge-shaped jacking block are both provided with a second electric push rod, and two ends of the second electric push rod are respectively fixedly connected with the two wedge-shaped jacking blocks.

Preferably, the top of the wedge-shaped top block is attached to the bottom of the lifting seat, and the two electric push rods are arranged in a mirror image overturning manner.

Preferably, the two sides of the bottom of the sliding seat are fixedly connected with L-shaped limiting blocks, and the two sides of the bottom of the inner cavity of the lifting seat are provided with L-shaped limiting grooves matched with the L-shaped limiting blocks.

Preferably, four guide strips are fixedly connected to two sides of the lifting seat, and guide sliding grooves matched with the guide strips are formed in two sides of an inner cavity of the guide rail.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model carries out the limit clamping to the slender rod through the arrangement of the clamping mechanism, then the left end of the slender rod is limited and fixed through the matching use of the belt type driving mechanism and the jacking mechanism, then the position of the slender rod is adjusted and the slender rod is driven to rotate through the matching use of the front and back displacement mechanisms and the rotating mechanism, finally the slender rod is processed under the action of the double four-axis equipment, thereby achieving the purposes of stable clamping, high multi-angle adjustment and mechanical automation strength and convenient processing, solving the problems that the excircle of the traditional shaft part milling processing is clamped by three claws, the tailstock center is assisted, only one part can be processed each time, but the repeated clamping of the part, the rigidity of the part affects the processing efficiency of the part, the precision of the milling processing and the turnover of the part, and because the radius of the slender rod part has certain difference, at the in-process of counterpointing the centre gripping, the user of being not convenient for is fixed the spacing of slender pole, has then consumeed the problem of user's time and energy.

Drawings

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

fig. 2 is a schematic perspective view of the base, the belt-type driving mechanism, the jacking mechanism and the guide rail of the present invention;

fig. 3 is a schematic perspective view of the lifting seat, the rotating mechanism and the clamping mechanism of the present invention;

FIG. 4 is a schematic perspective view of the front and rear displacement mechanism and the lifting seat of the present invention;

FIG. 5 is a schematic perspective view of the wedge-shaped top block and the second electric pushing rod of the present invention;

FIG. 6 is a schematic perspective view of the front and rear displacement mechanism and the rotating mechanism of the present invention;

fig. 7 is a schematic three-dimensional split view of the clamping mechanism of the present invention;

FIG. 8 is an enlarged view of a portion of the point A in FIG. 7 according to the present invention;

fig. 9 is a schematic perspective view of the clamping mechanism of the present invention;

fig. 10 is a schematic perspective view of the rotating mechanism and the clamping mechanism of the present invention;

fig. 11 is a schematic perspective view of the guide chute and the guide rail of the present invention.

In the figure: 1. a base; 2. a dual four-axis device; 3. a belt drive mechanism; 31. a first stepping motor; 32. a first driving disc; 33. a threaded drive rod; 34. a second stress plate; 4. a jacking mechanism; 41. fixing a sleeve; 42. a tip cone; 43. jacking the frame; 44. a threaded sliding sleeve; 5. a front-rear displacement mechanism; 51. a slide base; 52. an arc-shaped chute; 53. a second stepping motor; 54. a bidirectional screw; 55. a threaded slide tube; 6. a rotating mechanism; 61. rotating the sleeve; 62. a fixing ring; 63. a limiting ring; 64. a second stress plate; 65. a drive motor; 66. a drive disc; 7. a clamping mechanism; 71. a slip ring; 72. a rectangular groove; 73. a wedge-shaped clamping block; 74. a torsion spring; 75. an electric push rod I; 76. a slide hole; 8. a guide rail; 9. a lifting seat; 10. a wedge-shaped top block; 11. an electric push rod II; 12. an L-shaped limiting block; 13. an L-shaped limiting groove; 14. a guide strip; 15. a guide chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-11, the present invention provides a technical solution: a milling device for slender rod parts comprises a base 1, a double four-axis device 2 is arranged on the right side of the base 1, a belt type driving mechanism 3 is arranged on the left side of the top of the base 1, a jacking mechanism 4 is arranged on the top of the base 1, a guide rail 8 is fixedly connected to the right side of the base 1, a lifting seat 9 is fixedly connected to the inner cavity of the guide rail 8, a front-back displacement mechanism 5 is arranged in the inner cavity of the lifting seat 9, the front-back displacement mechanism 5 comprises a sliding seat 51 which is slidably connected to the front side and the rear side of the inner cavity of the lifting seat 9, a threaded sliding tube 55 is fixedly connected to the bottom of the sliding seat 51, an arc sliding groove 52 which is matched with the threaded sliding tube 55 is formed in the bottom of the inner cavity of the lifting seat 9, a second stepping motor 53 is installed on the front side of the lifting seat 9, an output shaft of the second stepping motor 53 penetrates through the inner cavity of the arc sliding groove 52 and is fixedly connected with a bidirectional screw 54, the rear end of the bidirectional screw 54 is rotatably connected with the inner wall of the arc sliding groove 52 through a bearing, the top of the sliding seat 51 is provided with a rotating mechanism 6, the rotating mechanism 6 comprises a rotating sleeve 61 positioned at the top of the sliding seat 51, the surface of the rotating sleeve 61 is fixedly connected with a stressed disc II 64, one side of the top of the sliding seat 51 is provided with a driving motor 65, an output shaft of the driving motor 65 is fixedly connected with a driving disc 66, the stressed disc II 64 is in transmission connection with the driving disc 66 through a belt II, the inner cavity of the rotating sleeve 61 is provided with a clamping mechanism 7, the clamping mechanism 7 comprises a sliding ring 71 which is in sliding connection with the inner cavity of the rotating sleeve 61, the top and the bottom of the surface of the rotating sleeve 61 are both provided with sliding holes 76 which are matched with the sliding ring 71, the top and the bottom of the surface of the rotating sleeve 61 are both provided with an electric push rod I75, the extending end of the electric push rod I75 is fixedly connected with the sliding ring 71, the inner wall of the sliding ring 71 is annularly provided with three rectangular grooves 72, the inner cavity of the rectangular grooves 72 is rotatably connected with a wedge-shaped clamping block 73, torsion springs 74 are welded on two sides, close to the rectangular groove 72, of the wedge-shaped clamping block 73, and one end, far away from the wedge-shaped clamping block 73, of each torsion spring 74 is welded with the inner wall of the rectangular groove 72.

As a preferable embodiment of the present embodiment: the fixed ring 62 of the equal fixedly connected with in both sides at slide 51 top, the stop collar 63 of the equal fixedly connected with in both sides and the fixed ring 62 looks adaptation on rotation sleeve 61 surface, fixed ring 62 rotates and connects in the inner chamber of stop collar 63, uses through the cooperation of fixed ring 62 and stop collar 63, has played the effect of spacing support to rotation sleeve 61 for rotation sleeve 61 can be at the stable emergence of top of slide 51 rotatory.

As a preferable embodiment of the present embodiment: the inner cavity of the threaded sliding pipe 55 is provided with an internal thread matched with the bidirectional screw 54, the threaded sliding pipe 55 is in threaded connection with the surface of the bidirectional screw 54, and the bidirectional screw 54 and the threaded sliding pipe 55 are matched for use, so that the sliding seat 51 can be driven to move back and forth through the threaded sliding pipe 55 while the bidirectional screw 54 rotates.

As a preferable embodiment of the present embodiment: equal sliding connection in front side and the rear side of 8 inner chambers of guide rail has wedge kicking block 10, and two electric push rod 11 are all installed at the both ends of the relative one side of two wedge kicking blocks 10, and the both ends of wedge kicking block 10 respectively with two wedge kicking block 10 fixed connection, use through the cooperation of wedge kicking block 10 and electric push rod 11, when two wedge kicking blocks 10 concerted movement or dorsad movement, lift seat 9 can vertically reciprocate.

As a preferable embodiment of the present embodiment: the top of the wedge-shaped top block 10 is attached to the bottom of the lifting seat 9, and the two electric push rods 11 are arranged in a mirror image overturning manner.

As a preferable embodiment of the present embodiment: the equal fixedly connected with L shape stopper 12 in both sides of slide 51 bottom, the L shape spacing groove 13 of L shape stopper 12 looks adaptation is all seted up to the both sides of lift seat 9 inner chamber bottom, uses through the cooperation of L shape stopper 12 and L shape spacing groove 13, has played spacing and effect of direction to slide 51, has improved the stability of slide 51 in the motion process.

As a preferable embodiment of the present embodiment: the equal four gibs 14 of fixedly connected with in both sides of lift seat 9, the direction spout 15 with gib 14 looks adaptation is all seted up to the both sides of guide rail 8 inner chamber.

Example two:

As a preferable embodiment of the present embodiment: belt actuating mechanism 3 is including installing at the left step motor 31 in base 1 top, output shaft fixedly connected with driving-disc 32 of step motor 31, the left front end in base 1 top and rear end all rotate through the bearing and are connected with screw thread actuating lever 33, the bottom fixedly connected with atress dish 34 on screw thread actuating lever 33 surface, driving-disc 32 and atress dish 34 are connected through a belt transmission, setting through belt actuating mechanism 3, at step motor 31, under the cooperation of driving-disc 32 and atress dish 34 is used, make screw thread actuating lever 33 take place the rotation, then drive the vertical up-and-down motion of screw thread sliding sleeve 44.

As a preferable embodiment of the present embodiment: jacking mechanism 4 includes fixed cover 41 of fixed connection at base 1 top, and the inner chamber sliding connection of fixed cover 41 has two tip cones 42, and the left side of fixed cover 41 is provided with jacking frame 43, and the front end and the rear end on jacking frame 43 right side rotate with two tip cones 42 respectively and are connected, through the setting of jacking mechanism 4, and wherein the centre gripping is fixed a position to the left end of slender pole to fixed cover 41 and tip cone 42's cooperation use, has improved the stability of slender pole in the course of working.

As a preferable embodiment of the present embodiment: jacking frame 43 is inclination setting, and the front side and the rear side on jacking frame 43 surface all rotate and are connected with screw sliding sleeve 44, and screw sliding sleeve 44 threaded connection is in the surface of screw drive pole 33, through the setting of jacking frame 43, at the in-process of screw sliding sleeve 44 downstream, promotes apex cone 42, makes then apex cone 42 horizontal side-to-side movement.

As a preferable embodiment of the present embodiment: equal sliding connection in front side and the rear side of 8 inner chambers of guide rail has wedge kicking block 10, and two electric push rod 11 are all installed at the both ends of the relative one side of two wedge kicking blocks 10, and the both ends of two electric push rod 11 respectively with two wedge kicking blocks 10 fixed connection, use through the cooperation of wedge kicking block 10 and two electric push rod 11, when two wedge kicking blocks 10 concerted motions or dorsad motion, lift seat 9 can vertically reciprocate.

The working principle is as follows: the utility model discloses during the use, the user makes the slender pole be located between three slide 51 through penetrating the inner chamber of rotating sleeve 61 with the slender pole, opens electric push rod 75 afterwards, and electric push rod 75 drives three wedge clamp splice 73 through slip ring 71 and contracts to the centre, makes then the slender pole can spacing centre gripping, and the user uses through the cooperation of wedge kicking block 10 and electric push rod two 11 afterwards, adjusts the height of seat 9 that goes up and down, makes the center department of the left end of slender pole and the well heart department of the right-hand member of the driver's cone 42 be located same horizontal plane;

then, the first stepping motor 31 is started, the first stepping motor 31 drives the threaded driving rod 33 through the matching use of the first driving disc 32 and the first stress disc 34, the threaded driving rod 33 drives the threaded sliding sleeve 44 to move downwards through the threads on the surface, then the right end of the jacking frame 43 pushes the two top cones 42, the left end of the slender rod is limited and clamped through the top cones 42, and the right end of the slender rod is located at the processing position of the double-four-axis device 2 at the moment;

finally, the user drives the rotating sleeve 61 to rotate and process by starting the driving motor 65, and the driving motor 65 is matched with the second stress disc 64 and the driving disc 66;

through the operation of above step, can reach the centre gripping and stabilize, the purpose that multi-angle is adjusted and mechanical automation intensity is high, be convenient for processing.

In summary, the following steps: the slender rod part milling device carries out limiting clamping on the slender rod through the arrangement of the clamping mechanism 7, then, the slender rod is used through the cooperation of the belt type driving mechanism 3 and the jacking mechanism 4, the left end of the slender rod is limited and fixed, then, the slender rod is used through the cooperation of the front and back displacement mechanism 5 and the rotating mechanism 6, the position of the slender rod is adjusted and the slender rod is driven to rotate, finally, the slender rod is processed under the action of the double four-axis equipment 2, the purposes of stable clamping can be achieved, multi-angle adjustment, high mechanical automation strength and convenience in processing are achieved, the problems that the traditional shaft part milling excircle is clamped by three claws, the tailstock center is assisted, only one part can be processed at each time, but repeated clamping of the parts, the rigidity of the slender rod part affects the processing efficiency of the parts, the milling precision and the turnover of the slender rod part are solved, and because the radius of the slender rod part has certain difference, at the in-process of counterpointing the centre gripping, the user of being not convenient for is fixed the spacing of slender pole, has then consumeed the problem of user's time and energy.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an elongate rod part mills processingequipment, includes base (1), its characterized in that: the right side of base (1) is provided with two four-axis equipment (2), the left side at base (1) top is provided with belt actuating mechanism (3), the top of base (1) is provided with jacking mechanism (4), the right side fixedly connected with guide rail (8) of base (1), the inner chamber fixedly connected with lift seat (9) of guide rail (8), displacement mechanism (5) around the inner chamber of lift seat (9) is provided with, displacement mechanism (5) are including sliding connection in slide (51) of lift seat (9) inner chamber front side and rear side around, the bottom fixedly connected with screw thread slide pipe (55) of slide (51), arc spout (52) with screw thread slide pipe (55) looks adaptation are seted up to the bottom of lift seat (9) inner chamber, step motor two (53) are installed to the front side of lift seat (9), the output shaft of step motor two (53) runs through to the inner chamber and the fixedly connected with two of arc spout (52) and the inner chamber of arc spout (52) and two (53) To screw rod (54), the rear end of two-way screw rod (54) passes through the bearing and is connected with the inner wall rotation of arc spout (52), the top of slide (51) is provided with slewing mechanism (6), slewing mechanism (6) are including being located the rotation sleeve pipe (61) at slide (51) top, the fixed surface of rotating sleeve pipe (61) is connected with atress dish two (64), driving motor (65) are installed to one side at slide (51) top, the output shaft fixed connection of driving motor (65) has driving-disc (66), atress dish two (64) are connected through two belt transmissions with driving-disc (66), the inner chamber of rotation sleeve pipe (61) is provided with fixture (7), fixture (7) are including sliding ring (71) of sliding connection in rotating sleeve pipe (61) inner chamber, sliding hole (76) with sliding ring (71) looks adaptation are all seted up to the top and the bottom on rotation sleeve pipe (61) surface, rotate sleeve pipe (61) surperficial top and bottom and all install electric push rod (75), the end and slip ring (71) fixed connection that stretch out of electric push rod (75), three rectangle recess (72) have been seted up to the inner wall annular of slip ring (71), the inner chamber rotation of rectangle recess (72) is connected with wedge clamp splice (73), torsional spring (74) have all been welded to the both sides that wedge clamp splice (73) are close to rectangle recess (72), the one end that wedge clamp splice (73) were kept away from in torsional spring (74) welds with the inner wall of rectangle recess (72) mutually.

2. The elongated rod part milling device according to claim 1, wherein: belt actuating mechanism (3) are including installing at the left step motor one (31) in base (1) top, the output shaft fixedly connected with driving-disc one (32) of step motor one (31), the left front end in base (1) top and rear end all are connected with screw thread actuating lever (33) through the bearing rotation, the bottom fixedly connected with atress dish one (34) on screw thread actuating lever (33) surface, driving-disc one (32) and atress dish one (34) are through a belt drive connection.

3. The elongated rod part milling device according to claim 1, wherein: jacking mechanism (4) are including fixed cover (41) of fixed connection at base (1) top, the inner chamber sliding connection of fixed cover (41) has two tip cones (42), the left side of fixed cover (41) is provided with jacking frame (43), the front end and the rear end on jacking frame (43) right side rotate with two tip cones (42) respectively and are connected.

4. The elongated rod part milling device according to claim 3, wherein: jacking frame (43) are the inclination setting, the front side and the rear side on jacking frame (43) surface all rotate and are connected with screw thread sliding sleeve (44), screw thread sliding sleeve (44) threaded connection is in the surface of screw thread actuating lever (33).

5. The elongated rod part milling device according to claim 1, wherein: the equal fixedly connected with in both sides at slide (51) top fixes ring (62), the equal fixedly connected with in both sides on rotating sleeve pipe (61) surface and the spacing ring (63) of fixed ring (62) looks adaptation, fixed ring (62) rotate to be connected in the inner chamber of spacing ring (63).

6. The elongated rod part milling device according to claim 1, wherein: the inner cavity of the thread sliding pipe (55) is provided with an internal thread matched with the two-way screw rod (54), and the thread sliding pipe (55) is connected to the surface of the two-way screw rod (54) in a threaded mode.

7. The elongated rod part milling device according to claim 1, wherein: the equal sliding connection in front side and the rear side of guide rail (8) inner chamber has wedge kicking block (10), and electric push rod two (11) are all installed at the both ends of the relative one side of two wedge kicking blocks (10), the both ends of electric push rod two (11) respectively with two wedge kicking blocks (10) fixed connection.

8. The elongated rod part milling device according to claim 7, wherein: the top of the wedge-shaped top block (10) is attached to the bottom of the lifting seat (9), and the two electric push rods (11) are arranged in a mirror image overturning mode.

9. The elongated rod part milling device according to claim 1, wherein: the two sides of the bottom of the sliding seat (51) are fixedly connected with L-shaped limiting blocks (12), and L-shaped limiting grooves (13) matched with the L-shaped limiting blocks (12) are formed in the two sides of the bottom of the inner cavity of the lifting seat (9).

10. The elongated rod part milling device according to claim 1, wherein: the equal fixedly connected with four gibs (14) in both sides of lift seat (9), guide chute (15) with gib (14) looks adaptation are all seted up to the both sides of guide rail (8) inner chamber.